DESC:CROSS-REFERENCE TO RELATED APPLICATION
[001] This Application is based on and derives the benefit of Indian Provisional Application 202441010315 filed on 14th February 2024, the contents of which are incorporated herein by reference.
TECHNICAL FIELD
[002] The embodiments herein generally relate to luminaire and more particularly, to the luminaire that is configured to be surface mounted on a mounting surface such as a ceiling of a clean room, and a method of installing the luminaire.
BACKGROUND
[003] Generally, a luminaire is a lighting device used to illuminate a room or specific area. In clean room environments, a top-maintainable luminaire is typically installed in a metallic walkable false ceiling. This installation requires cutting out sections of the ceiling to accommodate the luminaire, along with a top frame or top cover to prevent accidental damage and the entry of water or dust from the bay area above the ceiling. However, this approach compromises the structural integrity of the ceiling and poses maintenance challenges due to limited accessibility.
[004] In conventional installations, the luminaire’s location is fixed once the cutout is made, which significantly reduces flexibility in adapting to future changes in the clean room layout. Any modification in the lighting arrangement requires new cutouts and additional structural alterations, which are time-consuming, labor-intensive, and can disrupt clean room operations. This rigid installation process limits the ability to reconfigure the lighting system as per evolving requirements, making it less efficient and costly in the long run.
[005] For maintenance purposes, it is essential to cut off the power supply to ensure the safety of the operator working on the luminaire. However, this results in a temporary shutdown of operations, which is highly undesirable in continuous working environments like clean rooms. Furthermore, when multiple luminaires are connected, a separate junction box is required for power distribution, adding complexity to the installation and increasing the overall cost and effort.
[006] Moreover, the use of a top frame or top cover introduces additional complexity and potential safety risks. There is always a chance of accidental stepping on the top cover, leading to damage or personal injury. Additionally, improper sealing of the cutout can allow water and dust ingress, compromising the clean room’s controlled environment. Therefore, there is a need for a luminaire system that eliminates ceiling cutouts while maintaining the clean room’s structural and environmental integrity, providing easier maintenance, improving operational safety, and offering flexibility in placement.
[007] Therefore, there exists a need for a luminaire and a method of installing the luminaire which obviates the aforementioned drawbacks.
OBJECTS
[008] The principal object of embodiments herein is to provide a luminaire that is configured to be surface-mounted on a mounting surface, such as the ceiling of a clean room, without requiring cutouts in the ceiling.
[009] Another object of embodiments herein is to provide the luminaire that preserves the structural integrity of the mounting surface by eliminating the need for cutouts during installation.
[010] Another object of embodiments herein is to provide the luminaire that allows maintenance from a top side of the mounting surface, ensuring ease of access and minimizing disruption in clean rooms.
[011] Another object of embodiments herein is to provide the luminaire that offers flexibility in placement, enabling easy adaptation to changes in the room layout.
[012] Another object of embodiments herein is to provide the luminaire that prevents the entry and accumulation of dust, ensuring compliance with clean room standards.
[013] Another object of embodiments herein is to provide the luminaire configured to automatically cut off the power supply during maintenance, enhancing safety for maintenance personnel.
[014] Another object of embodiments herein is to provide the luminaire that ensures safe and secure mounting on the ceiling, reducing the risk of accidents.
[015] Another object of embodiments herein is to provide the luminaire with a separate driver unit that simplifies maintenance, allows power connections to be managed from the top side of the mounting surface, and allows compact designing of the luminaire.
[016] Another object of embodiments herein is to provide the luminaire that eliminates the need for a top cover, reducing the risk of accidents and preventing water and dust ingress.
[017] Another object of embodiments herein is to provide a method of installing the luminaire that is quick and efficient, reducing installation time and effort.
[018] These and other objects of embodiments herein will be better appreciated and understood when considered in conjunction with following description and accompanying drawings. It should be understood, however, that the following descriptions, while indicating embodiments and numerous specific details thereof, are given by way of illustration and not of limitation. Many changes and modifications may be made within the scope of the embodiments herein without departing from the spirit thereof, and the embodiments herein include all such modifications.

BRIEF DESCRIPTION OF DRAWINGS
[019] The embodiments are illustrated in the accompanying drawings, throughout which like reference letters indicate corresponding parts in various figures. The embodiments herein will be better understood from the following description with reference to the drawings, in which:
[020] Fig. 1 depicts an isometric view of a luminaire and a mounting surface, according to embodiments as disclosed herein;
[021] Fig. 2 depicts an isometric view of the luminaire, according to embodiments as disclosed herein;
[022] Fig. 3 depicts another isometric view of the luminaire and the mounting surface, according to embodiments as disclosed herein;
[023] Fig. 4 depicts an isometric view of the mounting surface, according to embodiments as disclosed herein;
[024] Fig. 5 depicts an exploded view of the luminaire, according to embodiments as disclosed herein;
[025] Fig. 6A depicts an isometric rear view of a housing of the luminaire, according to embodiments as disclosed herein;
[026] Fig. 6B depicts an isometric front view of the housing of the luminaire, according to embodiments as disclosed herein;
[027] Fig. 6C depicts a rear view of the housing of the luminaire, according to embodiments as disclosed herein;
[028] Fig. 6D depicts a front view of the housing of the luminaire, according to embodiments as disclosed herein;
[029] Fig. 6E depicts a side view of the housing of the luminaire, according to embodiments as disclosed herein;
[030] Figs. 7A and 7B depict isometric views of a light-emitting module of the luminaire, according to embodiments as disclosed herein;
[031] Fig. 8A to 8E depict isometric views of a driver unit of the luminaire, according to embodiments as disclosed herein;
[032] Fig. 8F depicts a front view of the driver unit of the luminaire, according to embodiments as disclosed herein; and
[033] Fig. 9 depicts a flowchart of a method of installing the luminaire on the mounting surface, according to embodiments as disclosed herein.
DETAILED DESCRIPTION
[034] The embodiments herein and the various features and advantageous details thereof are explained more fully with reference to the non-limiting embodiments that are illustrated in the accompanying drawings and detailed in the following description. Descriptions of well-known components and processing techniques are omitted so as to not unnecessarily obscure the embodiments herein. The examples used herein are intended merely to facilitate an understanding of ways in which the embodiments herein may be practiced and to further enable those of skill in the art to practice the embodiments herein. Accordingly, the examples should not be construed as limiting the scope of the embodiments herein.
[035] The embodiments herein achieve a luminaire that is configured to be surface-mounted on a mounting surface, such as the ceiling of a clean room, without requiring cutouts in the ceiling. Further, embodiments herein achieve a method of installing the luminaire that is quick and efficient, reducing installation time and effort. Referring now to the drawings Figs. 1 through 9, where similar reference characters denote corresponding features consistently throughout the figures, there are shown embodiments.
[036] Fig. 1 depicts an isometric view of a luminaire (100) and a mounting surface (10), according to embodiments as disclosed herein. In an embodiment, the luminaire (100) includes ¬¬¬¬¬¬¬¬¬¬¬¬¬a housing (102), a light-emitting module (104) disposed within the housing (102), wherein the light-emitting module (104) includes at least one light source (104L), and a driver unit (200) disposed outside the housing (102) and electrically connected to the light-emitting module (104), wherein the driver unit (200) is configured to receive power from an external power supply (not shown) and supply it to the light-emitting module (104). For the purpose of this description and ease of understanding, the luminaire (100) is explained herein with reference to its mounting on a ceiling of a clean room. However, it is also within the scope of the invention to use/practice the components of the luminaire (100) for mounting on any other surface without otherwise deterring the intended function of the luminaire (100) as can be deduced from the description and corresponding drawings. In an embodiment, the luminaire (100) is configured to be mounted on the mounting surface (10) such that a rear face (102B) of the housing (102) is in abutting contact with a bottom side (10A) of the mounting surface (10), and the driver unit (200) is mounted towards a top side (10B) of the mounting surface (10).
[037] Further, in an embodiment, the luminaire (100) includes a diffuser (106) positioned towards a front face (102A) of the housing (102), wherein the diffuser (106) is configured for distributing light emitted by the light-emitting module (104). Furthermore, in an embodiment, the luminaire (100) includes a plurality of mounting members (110) configured to secure the housing (102) to the mounting surface (10). Moreover, in an embodiment, the luminaire (100) includes a plurality of suspension members (112) connected to the housing (102), wherein each suspension member (112) is configured to be inserted through the mounting surface (10) and hold the luminaire (100) in place when the luminaire (100) is suspended from the mounting surface (10), thereby preventing the luminaire (100) from falling off the mounting surface (10).
[038] In an embodiment, the housing (102) has a plurality of tapering side walls (102S) extending between its front face (102A) and its rear face (102B) (as shown in figs. 3, and 6E), wherein each tapering side wall (102S) has a predefined inclination which facilitates in minimizing the accumulation of particles on the housing (102). Further, in an embodiment, the housing (102) has a slot (102T) defined near its rear face (102B) (as shown in figs. 6A and 6C), along a periphery of the housing (102), wherein the slot (102T) is adapted to receive a first sealing member (not shown). The first sealing member is configured to be pressed against the bottom side (10A) of the mounting surface (10) when the housing (102) is secured to the mounting surface (10), sealing a gap between the housing (102) and the mounting surface (10), and thereby preventing entry of particles and moisture into the mounting surface (10) through the luminaire (100). Furthermore, in an embodiment, the housing (102) has a stepped portion (102P) defined towards its front face (102A), wherein the diffuser (106) is positioned on the stepped portion (102P) and affixed to the housing (102). In an embodiment, a second sealing member (not shown) is provided between an interface of the diffuser (106) and the housing (102) to prevent the entry of particles and moisture into the housing (102) through its front face (102A). Furthermore, in an embodiment, the housing (102) includes a plurality of reinforcement members (102R) inserted at each corner of the housing (102) to improve structural integrity of the housing (102) (shown in figs. 6A and 6C). In an embodiment, the housing (102) is made of at least any one of Aluminium and sheet metal, and wherein the diffuser (106) is at least any one of an opal diffuser and prismatic diffuser. However, it is within the scope of this invention to have the luminaire (100) that has the housing (102) made of any other material, and the diffuser (106) with any other configuration. Further, in an embodiment, each of the first sealing member and second sealing member is a rubber gasket.
[039] Fig. 2 depicts another isometric view of the luminaire (100), according to the embodiments as disclosed herein. In an embodiment, the light-emitting module (104) includes an enclosure (104A) configured to be connected to the housing (102) (shown in figs. 5, 7A, and 7B). The at least one light source (104L) is connected to a surface of the enclosure (104A) (shown in fig. 7B), and the enclosure (104A) is configured to enclose the at least one light source (104L) within the housing (102). In an embodiment, the at least one light source (104L) is a light-emitting diode (LED). Further, in an embodiment, the light-emitting module (104) includes a plurality of light sources, wherein the light sources (104L) are mounted in arrays on the enclosure (104A). In an embodiment the plurality of light source are secured to the surface of the enclosure (104A) through fasteners (F) (shown in fig. 5). Furthermore, the enclosure (104A) is adapted to be mounted within the housing (102), enclosing the diffuser (106) from a rear direction of the housing (102) (shown in fig. 2). In an embodiment, the housing (102) has a groove (102G) defined along its periphery to receive a bottom portion of the enclosure (104A), wherein the enclosure (104A) is secured to the housing (102) through a plurality of brackets (104B). In an embodiment, the enclosure (104A) is made of sheet metal.
[040] In an embodiment, the driver unit (200) includes a tray (202), a cover (204) enclosing the tray (202) and configured to be openable to allow access to the tray (202), a driver (206) mounted on the tray (202), and an auto cut-off switch (208) mounted on the tray (202) (shown in figs. 8A to 8E). The driver (206) is electrically connected to the light-emitting module (104) and configured to control illumination of the at least one light source (104L). Further, the auto cut-off switch (208) is configured to cut off the power supply to the light emitting module (104) when the cover (204) is detached from the tray (202). The automatic power cut-off feature for the light-emitting module (104) upon the detachment of the cover (204) from the tray (202) significantly enhances operator safety during maintenance of the luminaire (100). This safeguards the operator performing the maintenance and allows for the servicing of the luminaire without interfering with the functionality of other luminaires in the room. As a result, this helps in maintaining uninterrupted operations within the space. In an embodiment, the driver unit (200) includes a sealing gasket mounted at an interface of the tray (202) and cover (204) of the driver unit (200), wherein the sealing gasket prevents entry of particles and moisture inside the driver unit (200).
[041] Furthermore, in an embodiment, the driver unit (200) includes a wire connecting interface (210) mounted on the tray (202) (shown in figs. 8A and 8C). The wire connecting interface (210) is configured to facilitate connection of the luminaire (100) with the external power supply, and distribution of power supply to at least one other luminaire. The wire connecting interface (210) enables efficient power distribution to multiple luminaires within a room, eliminating the necessity for an external junction box. This minimizes reliance on external components and streamlines the maintenance and assembly processes, resulting in a more convenient and user-friendly experience.
[042] In an embodiment, the light-emitting module (104) is connected to the driver (206) through corresponding wires (104W, 206W) connected via a male-female connector interface (104C, 206C) (shown in figs. 8A, 8C, and 8D). Further, in an embodiment, the cover (204) has at least two openings (204A), wherein a first opening (204A) is adapted to receive the wire (206W) connected to the driver (206) (shown in figs. 8A, 8B, 8D and 8E), and a second opening (204B) (shown in fig. 8F) is adapted to receive a wire (200W) (shown in figs. 8A, 8B, 8D and 8E) from the external power supply. In an embodiment, each opening (204A) is configured to be sealed by a third sealing member (204S) upon insertion of the corresponding wire (206W, 200W) therethrough (shown in fig. 8D), thereby preventing entry of particles and moisture into the driver unit (200).
[043] Furthermore, in an embodiment, the driver unit (200) is configured to be mounted in a vertical orientation, in which the driver unit (200) is mounted on a support member (not shown) through which the mounting surface (10) is suspended. In another embodiment, the driver unit (200) is configured to be mounted in a horizontal orientation, in which the driver unit (200) is mounted in contact with the top side (10B) of the mounting surface (10) (shown in figs. 5A to 5B). The placement of the driver unit (200) outside the housing (102) enables a more compact luminaire design, which effectively minimizes the overhang within the room. Additionally, by positioning the driver unit (200) on the top side (10B) of the mounting surface (10), accessibility is enhanced from a bay area of the room. This reduces the necessity for accessing the luminaire (100) from within the room itself, which is particularly beneficial in environments requiring limited intervention, such as clean rooms.
[044] In an embodiment, to facilitate the mounting of the luminaire (100) on the mounting surface (10), a plurality of holes (12, 12A) corresponding to the plurality of mounting members (110), the plurality of suspension members (112), and the wire (104W) connected to the light emitting module (104), are made into the mounting surface (10) (shown in figs. 1 and 4).
[045] In an embodiment, each mounting member (110) is connected near the rear face (102B) of the housing and protrudes upwards beyond a plane of the rear face (102B) (shown in figs. 2, 6A and 6E). Further, each mounting member (110) is configured to pass through the corresponding hole (12) defined in the mounting surface (10) (shown in fig. 3). Furthermore, each mounting member (110) is secured to the mounting surface (10) by a corresponding securing member (110S) inserted from the top side (10B) of the mounting surface (10) (shown in fig. 4). In an embodiment, each mounting member (110) is a stud threaded into an inner side of the f the housing (102), and each securing member (110S) is a fastener. In an embodiment, each mounting member (110) is coupled with an adjustment member (110A), wherein the adjustment member (110A) is configured to be adjusted with a tool (T) to facilitate adjustment of the corresponding mounting member (110) relative to the housing (102) in a lateral and a vertical direction (shown in fig. 6A).
[046] As a non-limiting example, the housing (102) of the luminaire (100) has a square cross section, wherein an edge of the housing (102) has dimensions ranging from 250 mm to 700 mm, and the housing (102) has a thickness ranging from 20 mm to 50 mm. Further, as another non-limiting example, the housing (102) of the luminaire (100) has a rectangular cross section, wherein the housing has a length ranging from 300 mm to 1500 mm, a breadth ranging from 100 mm to 500 mm, and having a thickness ranging from 20 mm to 50 mm. Additionally, the luminaire (100) is designed to be connected with another luminaire on the mounting surface (10), allowing for seamless installation in a continuous line.
[047] Fig. 9 depicts a method (300) of installing the luminaire (100) on the mounting surface (10). In an embodiment, the method (300) includes at step (302), preparing the mounting surface (10) by marking and making the plurality of holes (12, 12A) corresponding to the plurality of mounting members (110), plurality of suspension members (112), and wire (104W) connected to the light emitting module (104) of the luminaire (100). Further, the method (300) includes at step (304), aligning the luminaire (100) with the plurality of holes (12). Furthermore, the method (300) includes at step (306), inserting each suspension member (112) and the wire (104W) connected to the light emitting module (104) through the corresponding holes (12). Moreover, the method (300) includes at step (308), securing the housing (102) of the luminaire (100) to the mounting surface (10) by securing the plurality of mounting members (110) to the mounting surface (10), therein positioning the rear face (102B) of the housing (102) in abutting contact with the bottom side (10A) of the mounting surface (10). The method (300) includes at step (310), securing each suspension member (112) onto the top side (10B) of the mounting surface (10). Further, the method (300) includes at step (312), mounting the driver unit (200) of the luminaire (100) towards the top side (10B) of the mounting surface (10). Additionally, the method (300) includes at step (314), connecting the wire (104W) connected to the light emitting module (104) with the wire (206W) connected to the driver (206) of the driver unit (200), and connecting the wire (200W) from the external power supply to corresponding junction (210J) of the wire connecting interface (210) of the driver unit (200).
[048] In an embodiment, step (302) of the method (300) includes at step (302A), placing a template on the mounting surface (10) to mark positions corresponding to the plurality of holes (12). Further, step (302) includes at step (302B) making the plurality of holes (12) by drilling into the marked positions to form the plurality of holes (12) corresponding to the plurality of mounting members (110), the plurality of suspension members (112), and the wire (104W) connected to the light emitting module (104). In an embodiment, step (304) includes loosening each adjustment member (110A) to adjust position of the corresponding mounting member (110) on the housing (102) for alignment with the corresponding hole (12) made in the mounting surface (10). Further, in an embodiment, step (308) of the method (300) includes at step (308A) inserting the plurality of mounting members (110) through the corresponding plurality of holes (12) made in the mounting surface (10) such that an end portion of each mounting member (110) extends out of the top side (10B) of the mounting surface (10). Further, step (308) includes at step (308B) inserting the plurality of securing members (110S) with the corresponding plurality of fourth sealing members (110M) onto the respective mounting members (110). In an embodiment, each fourth sealing member (110M) is at least a washer. Furthermore, step (308) includes at step (308C), securing the luminaire (100) to the mounting surface (10) by tightening each securing member (110S) with the corresponding mounting member (110) from the top side (10B) of the mounting surface (10).
[049] In an embodiment, step (312) of the method (300) includes at step (312A) placing the tray (202) of the driver unit (200) near the hole (12A) corresponding to the wire (104W) of the light-emitting module (104), on the top side (10B) of the mounting surface (10). Further, step (312) includes at step (312B) securing the tray (202) to the mounting surface (10) through fasteners. Furthermore, in an embodiment, step (314) of the method (300) includes at step (314A) inserting the wire (200W) from the external power supply through the second opening (204B) defined in the cover (204) of the driver unit (200), and sealing the second opening (204B) through the third sealing member. Step (314) includes at step (314B) connecting the wire (200W) from the external power supply to terminals (210T) of the corresponding junction (210J) of the wire connecting interface (210). Further, step (314) includes at step (314C), connecting the wire (206W) connected to the driver (206) with the wire (104W) connected to the light-emitting module (104) of the luminaire (100).
[050] The technical advantages of the luminaire (100) and the method (300) are as follows. The luminaire (100) is configured to be surface-mounted on the mounting surface (10), such as a ceiling, without requiring cutouts. This design preserves the structural integrity of the mounting surface (10), eliminating potential risks associated with structural weakening or leaks that often result from cutouts. Additionally, the luminaire (100) is designed for maintenance from the top side (10B) of the mounting surface (10), providing easy access to internal components and minimizing disruptions within clean rooms. This top-maintainable feature not only simplifies maintenance but also enhances operational efficiency and reduces downtime. Further, the luminaire’s flexible mounting configuration allows for easy adaptation to changes in room layout, providing versatility in placement. It also incorporates features such as tapering sides of the housing and sealing members that prevent the entry and accumulation of dust, ensuring compliance with stringent clean room standards and maintaining a contaminant-free environment. Furthermore, the integration of an auto cut-off switch (208) that ensures automatic power cut-off mechanism during maintenance, enhances safety for maintenance personnel by preventing electrical hazards. The provision of the suspension members (112), and securing the plurality of mounting members (110) with the securing members (110S) ensures safe and reliable installation on the ceiling, minimizing the risk of accidents. Furthermore, the luminaire (100) is equipped with a separate driver unit (200) that can be managed from the top side, facilitating easier power connections and enabling a compact and efficient design. This approach eliminates the need for a top cover, which reduces the risk of accidental damage, prevents water and dust ingress, and enhances overall safety. The method (300) provides a quick and efficient installation process, significantly reducing installation time and labor.
[051] The foregoing description of the specific embodiments will so fully reveal the general nature of the embodiments herein that others can, by applying current knowledge, readily modify and/or adapt for various applications such specific embodiments without departing from the generic concept, and, therefore, such adaptations and modifications should and are intended to be comprehended within the meaning and range of equivalents of the disclosed embodiments. It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation. Therefore, while the embodiments herein have been described in terms of embodiments, those skilled in the art will recognize that the embodiments herein can be practiced with modifications within the spirit and scope of the embodiments as described herein.
[052] List of reference numerals:
Reference Numeral Description
10 Mounting surface
10A Bottom side of the mounting surface
10B Top side of the mounting surface
12 Plurality of holes made in the mounting surface
100 Luminaire
102 Housing
102A Front face of housing
102B Rear face of housing
102G Groove in housing
102P Stepped portion of housing
102R Plurality of reinforcement members
102S Plurality of tapering side walls of the housing
102T Slot for first sealing member
104 Light-emitting module
104A Enclosure of light-emitting module
104C Male connector of wire connected to light-emitting module
104L Light source
104W Wire connected to light-emitting module
106 Diffuser
110 Plurality of suspension members
110A Adjustment member
110M Fourth sealing member
110S Plurality of securing members
112 Plurality of mounting members
200 Driver unit of the luminaire
202 Tray of driver unit
204 Cover of driver unit
204A First opening in driver unit
204B Second opening in driver unit
204S Third sealing member
206 Driver
206C Female connector of wire connected to driver
206W Wire connected to driver
208 Auto cut-off switch
210 Wire connecting interface
300 Method of installing the luminaire on the mounting surface
302 to 314 Steps of the method
,CLAIMS:We claim:
1. A luminaire (100) comprising:
a housing (102);
a light-emitting module (104) disposed within the housing (102), wherein the light-emitting module (104) comprises at least one light source (104L); and
a driver unit (200) disposed outside the housing (102) and electrically connected to the light-emitting module (104), wherein the driver unit (200) is configured to receive power from an external power supply and supply it to the light-emitting module (104),
wherein the luminaire (100) is configured to be mounted on a mounting surface (10) such that:
a rear face (102B) of the housing (102) is in abutting contact with a bottom side (10A) of the mounting surface (10); and
the driver unit (200) is mounted towards a top side (10B) of the mounting surface (10).
2. The luminaire (100) as claimed in claim 1, wherein the luminaire (100) comprises:
a diffuser (106) positioned towards a front face (102A) of the housing (102), wherein the diffuser (106) is configured for distributing light emitted by the light-emitting module (104); and
a plurality of mounting members (110) configured to secure the housing (102) to the mounting surface (10).
3. The luminaire (100) as claimed in claim 1, wherein the luminaire (100) includes a plurality of suspension members (112) connected to the housing (102), wherein each suspension member (112) is configured to be inserted through the mounting surface (10) and hold the luminaire (100) in place when the luminaire (100) is suspended from the mounting surface (10), thereby preventing the luminaire (100) from falling off the mounting surface (10).
4. The luminaire (100) as claimed in claim 1, wherein the housing (102) has a plurality of tapering side walls (102S) extending between the front face (102A) and the rear face (102B) of the housing (102), wherein each tapering side wall (102S) has a predefined inclination which facilitates in minimizing the accumulation of particles on the housing (102).
5. The luminaire (100) as claimed in claim 1, wherein the housing (102) has a slot (102T) defined near the rear face (102B) along a periphery of the housing (102),
wherein
the slot (102T) is adapted to receive a first sealing member; and
the first sealing member is configured to be pressed against the bottom side (10A) of the mounting surface (10) when the housing (102) is secured to the mounting surface (10), sealing a gap between the housing (102) and the mounting surface (10), thereby preventing entry of particles and moisture into the mounting surface (10) through the luminaire (100).
6. The luminaire (100) as claimed in claim 1, wherein the light-emitting module (104) includes an enclosure (104A) configured to be connected to the housing (102),
wherein
the at least one light source (104L) is connected to a surface of the enclosure (104A); and
the enclosure (104A) is configured to enclose the at least one light source (104L) within the housing (102).
7. The luminaire (100) as claimed in claim 1, wherein the driver unit (200) comprises:
a tray (202);
a cover (204) enclosing the tray (202), wherein the cover (204) is configured to be openable to allow access to the tray (202);
a driver (206) mounted on the tray (202), wherein the driver (206) is electrically connected to the light-emitting module (104) and configured to control illumination of the at least one light source (104L);
an auto cut-off switch (208) mounted on the tray (202), wherein the auto cut-off switch (208) is configured to cut off the power supply to the light emitting module (104) when the cover (204) is detached from the tray (202).
8. The luminaire (100) as claimed in claim 7, wherein the driver unit (200) includes a wire connecting interface (210) mounted on the tray (202),
wherein
the wire connecting interface (210) is configured to:
facilitate connection of the luminaire (100) with the external power supply; and
facilitate distribution of power supply to at least one other luminaire;
the light-emitting module (104) is connected to the driver (206) through corresponding wires (104W, 206W) connected via a male-female connector interface (104C, 206C);
the cover (204) has at least two openings (204A), wherein a first opening (204A) is adapted to receive the wire (206W) connected to the driver (206), and a second opening (204B) is adapted to receive a wire (200W) from the external power supply; and
each opening (204A, 204B) is configured to be sealed by a third sealing member (204S) upon insertion of the corresponding wire (206W, 200W) therethrough, thereby preventing entry of particles and moisture into the driver unit (200).
9. The luminaire (100) as claimed in claim 1, wherein each mounting member (110) is:
connected to near the front face (102A) of the housing (102) and protrudes upwards beyond a plane of the rear face (102B);
configured to pass through a corresponding hole (12) defined in the mounting surface (10); and
secured to the mounting surface (10) by a corresponding securing member (110S) inserted from the top side (10B) of the mounting surface (10).
10. The luminaire (100) as claimed in claim 9, wherein:
each mounting member (110) is a stud threaded into an inner side of the housing (10);
each securing member (110S) is a fastener;
each mounting member (110) is coupled with an adjustment member (110A);
the adjustment member (110A) is configured to be adjusted with a tool (T) to facilitate adjustment of the corresponding mounting member (110) relative to the housing (102) in a lateral and a vertical direction.
11. The luminaire (100) as claimed in claim 2, wherein the housing (102) has a stepped portion (102P) defined towards its front face (102A),
wherein
the diffuser (106) is positioned on the stepped portion (102P) and is affixed to the housing (102); and
a third sealing member is provided between an interface of the diffuser (106) and the housing (102), thereby preventing the entry of particles and moisture into the housing (102).
12. The luminaire (100) as claimed in claim 2, wherein the housing (102) is made of at least any one of Aluminium and sheet metal, and wherein the diffuser (106) is at least any one of an opal diffuser and prismatic diffuser.
13. The luminaire (100) as claimed in claim 1, wherein the driver unit (200) is configured to be mounted in any one of:
a vertical orientation, in which the driver unit (200) is mounted on a support member through which the mounting surface (10) is suspended; and
a horizontal orientation, in which the driver unit (200) is mounted in contact with the top side (10B) of the mounting surface (10).

14. The luminaire (100) as claimed in claim 1, wherein the housing (102) includes a plurality of reinforcement members (102R) inserted at each corner of the housing (102) to improve structural integrity of the housing (102).
15. A method (300) of installing a luminaire (100) on a mounting surface (10), the method (300) comprising:
preparing the mounting surface (10) by marking and making a plurality of holes (12) corresponding to:
a plurality of mounting members (110) connected to a housing (102) of the luminaire (100);
a plurality of suspension members (112) extending from the housing (102) of the luminaire (100); and
a wire (104W) connected to a light emitting module (104) of the luminaire (100);
aligning the luminaire (100) with the plurality of holes (12);
inserting each suspension member (112) and the wire (104W) connected to the light emitting module (104) through the corresponding holes (12);
securing the housing (102) of the luminaire (100) to the mounting surface (10) by securing the plurality of mounting members (110) to the mounting surface (10), therein positioning a rear face (102B) of the housing (102) in abutting contact with a bottom side (10A) of the mounting surface (10);
securing each suspension member (112) onto a top side (10B) of the mounting surface (10);
mounting a driver unit (200) of the luminaire (100) towards the top side (10B) of the mounting surface (10);
connecting the wire (104W) connected to the light emitting module (104) with a wire (206W) connected to a driver (206) of the driver unit (200), and connecting a wire (200W) from an external power supply to corresponding junction (210J) of a wire connecting interface (210) of the driver unit (200).
16. The method (300) as claimed in claim 1, wherein the preparing the mounting surface (10) by marking and making a plurality of holes (12) comprises:
placing a template on the mounting surface (10) to mark positions corresponding to the plurality of holes (12); and
making the plurality of holes (12) by drilling into the marked positions to form the plurality of holes (12) corresponding to the plurality of mounting members (110), the plurality of suspension members (112), and the wire (104W) connected to the light emitting module (104),
wherein the aligning the luminaire (100) with the plurality of holes (12) comprises:
loosening each adjustment member (110A) to adjust position of the corresponding mounting member (110) on the housing (102) for alignment with the corresponding hole (12) made in the mounting surface (10),
wherein securing the housing (102) of the luminaire (100) to the mounting surface (10) by securing the plurality of mounting members (110) to the mounting surface (10) comprises:
inserting the plurality of mounting members (110) through the corresponding plurality of holes (12) made in the mounting surface (10) such that an end portion of each mounting member (110) extends out of the top side (10B) of the mounting surface (10);
inserting a plurality of securing members (110S) with a corresponding plurality of fourth sealing members (110M) onto the respective mounting members (110); and
securing the luminaire (100) to the mounting surface (10) by tightening each securing member (110S) with the corresponding mounting member (110) from the top side (10B) of the mounting surface (10),
wherein the mounting the driver unit (200) of the luminaire (100) towards the top side (10B) of the mounting surface (10) comprises:
placing a tray (202) of the driver unit (200) near the hole (12A) corresponding to the wire (104W) of the light-emitting module (104), on the top side (10B) of the mounting surface (10);
securing the tray (202) to the mounting surface (10) through fasteners,
wherein the connecting the wire (104W) connected to the light emitting module (104) with the wire (206W) connected to the driver (206) of the driver unit (200) and connecting the wire (200W) from the external power supply to corresponding junctions (210J) of the wire connecting interface (210) of the driver unit (200) comprises:
inserting the wire (200W) from the external power supply through a second opening (204B) defined in a cover (204) of the driver unit (200), and sealing the second opening (204B) through a third sealing member (204S);
connecting the wire (200W) from the external power supply to terminals (210T) of the corresponding junction (210J) of the wire connecting interface (210); and
connecting the wire (206W) connected to the driver (206) with the wire (104W) connected to the light-emitting module (104) of the luminaire (100).