Claims:I/ WE Claim:-
1. A Precision Planar Positional Adjustment device for precision Optical Components comprises of when torque is applied on adjusting nut (12), the force ‘F’ acts on end pin (13) and vanes (11), due to left-handed threading on end pin (13) and right-handed threading on vanes (11) and corresponding similar threading on adjusting nut (12), end pin (13) and vane (11) will try to come near or far as per direction of torque which will cause vanes (11) under tension or compression.
2. A device as claimed in claim 1 wherein on simultaneous application of torque on opposite adjusting nut of vane sub-assembly V1 - V3 & V2 - V4 (7-9 or 8-10) on opposite direction (Clockwise & Anticlockwise or vice-versa) will allows precise movement of optics-2 mount (2) in x – y plane (16-17 Plane).
3. A device as claimed in claim 1 wherein by adding an extra degree of freedom (Planer Positional Adjustment) on Mirror - 2 sub assembly (2), the device will make finer alignment of units under alignment (optical assembly) with the accuracy of 1 µm.
4. A device as claimed in claim 1 wherein precision planer motion (in x-y plane) of any optical component without any change of interspatial distance/air gap & tilt. , Description:Title of the Invention:-
COUPLER MECHANISM FOR PLANAR PRECISION POSITIONAL ADJUSTMENT.
Background of the Invention:-
Optical systems, consisting of two or more curved mirrors (Spherical or Aspherical – Convex or Concave) require the positional errors to be controlled & compensated in sub-microns level to achieve the desired imaging performance. The schematic of two mirror systems shown in Image -1.

Image 1 - Schematic of Two Mirror RC Telescope
To achieve Diffraction limited performance of multi mirror optical system, optical axis and mechanical axis should coincide with high precision during the assembly of optical systems. The Decentration between the mirrors causes aberrations, which affects imaging performance of the optical systems.

Image 2a - Depiction of misalignment

Need of precision alignment in 2 Mirror based Optical Systems.
Ideal Optical Configurations of 2 Mirror Systems: Coincident optical axis of both optics with mechanical axis of optical systems.

More-over when manufacturing lenses and lens barrels, there may be manufacturing variations, which may cause a focus shift.
Optical Configurations of 2 mirror systems with positional error on either optics: Misalignment of optical axis of either optics with mechanical axis of optical systems.

Precision Optical Mount for Positional Correction:
Positional correction mechanism is not incorporated in any optical systems. The said invention addresses these issues and provides the solution in addition to in-situ adjustment.
The image quality of Optical systems gets degraded due to its manufacturing and assembly errors. Image - 5 depicts the alignment parameters, which are sensitive for two mirror systems.

Image 5 - Alignment sensitive parameters for two mirror systems
The decenter occurred in the mechanical axis of optical component introduces off axial aberrations like astigmatism to the incident radiation propagating through or from it by refraction or reflection respectively.
Effect of Surface Decenter on Optical & Mechanical Axis

Image 6 - Ray diagram of Unperturbed & Decentered Concave Reflective Surface
The image position of the point object coincides with the ideal optical axis produced by reflection from an unperturbed concave mirror. With the decenter of the same mirror the image point shifts to upward, above the ideal optical axis, resulting addition of off axial aberration like astigmatism, coma and distortion.
The coefficient of axial coma produced by decenter, depends on Coma and Spherical aberration of the unperturbed system. Similarly, astigmatism, field curvature introduced varies by image height and distortion varies by square of image height. For a multi surface system, the decenter of a surface affects not only its aberration contribution but those of the surfaces that follow it.
Depiction of the Optical & Mechanical Axes of two mirror systems
Cases Ray schematic
Ideal Condition- No
Positional Error (Decentre)
(X-Axis & Y-Axis)
Positional Error (Decentre) in Primary Mirror
(X-Axis & Y-Axis)
Positional Error (Decentre) in Secondary Mirror
(X-Axis & Y-Axis)
Field Of The Invention :-
Our invention is a coupler mechanism for planar precision positional adjustment for precision planner motion (in x-y plane) of an optical component without any change of any inter spatial distance/airgap & tilt.
Description Of Related Art :-
Patent no: -JP2006267267
Titled: - Lens position control device and imaging module
Disclosure: - To provide a lens position control device designed such that its control is extremely easy and the position of a lens in the direction of an optical axis is controlled despite its small size, and also to provide an imaging module.

SOLUTION: In the imaging module, a lens holder 30 supporting the lens 31 is covered and a lens barrel 20 and the lens holder 30 are connected by a connection member 40, such that an imaging element 11 having a light receiving part 11a at its bottom slides along the side face of the lens barrel 20 disposed on the substrate 10. A space S defined by the lens holder 30 and a container composed of the substrate 10 and lens barrel 20 is filled with a fluid. The position of the lens 31 relative to the light receiving part 11a is controlled by moving the lens holder 30 relative to the lens barrel 20 while controlling the volume of the fluid in the space S. Thus, since the position of the lens 31 relative to the light receiving part 11a is controlled by the volume of the fluid in the space S, the control is extremely easy and downsizing is easy.

COPYRIGHT: (C) 2007, JPO&INPIT
Problem: -The cited patent explained about positioning of lens along the optical lens to correct the focus, magnification etc.
Solution: While our invention controls optical components along lateral direction wrt to optical axis without any movement along optical axis to correct optical aberrations.
Patent no:-GB826136A
Titled:-Improvements in and relating to screw threads for optical apparatus
Disclosures:-826,136. Screw threads. VOIGTLANDER A.G. Feb. 7, 1956 [Feb. 8, 1955], No. 3848/56. Class 80 (3). [Also in Group XX] In an optical system in which screw threads are used in assembling or adjusting the optical elements the threads are made self-centering by making those flanks upon which the pressure comes at an angle to the axis of the thread which is less than 60 degrees and providing a space between the other flank and the corresponding flank of the counter-thread. The principle of the device is indicated in Fig. 1 in which a bolt 1 having a thread 2 of which the flanks 8 are inclined to the axis 5 at an angle a less than 60 degrees is screwed into a nut 7. By virtue of the slope of the flanks 8 and the space 3 between the other flanks of the thread and the counterthread in the nut 7, in screwing the bolt the flanks 8 slide on the counter thread to centre the bolt on the axis of the nut. The threads 2 may be symmetrical or saw-toothed (Fig. 2) the angle being about 45 degrees. Fig. 4 shows an objective comprising a member 15 having a focusing thread a pressed by a spring 27 against a counter-thread in a support 14, and carrying lenses 17, 22, 23 held in place by self-centring threads b, c and d.
Problem:-This patent uses bolt and thread method for tilt correction and also but this self centering mechanism can't be used to correct the Optics-2 in Telescope systems because correcting mechanism will obstruct the incoming light moreover accuracy cannot be obtained for micron level corrections..
Solution: - Our invention coupler mechanism for planar recession positional adjustment relates to Planar Precision Positional Adjustment for State-of-the-Art Optical Components. Our invention increases the accuracy of the alignment process and reduces the effort and time. Our invention allows precision planner motion (in x-y plane) of an optical component without any change of any inters spatial distance/air gap & tilt. In our invention the adjustment mechanism is an add on to convention mounting structure and provides an extra degree of freedom. Our invention will not degrade the optical quality inherently. Our invention increases accuracy and reduces time and effort.
Positional correction mechanism (2) is not incorporated in any optical systems (3). The said invention addresses these issues and provides the solution in addition to in-situ adjustment.
Patent no: -CN109048763A
Titled:-The adjustment machine and Method of Adjustment of high-definition camera automatic aligning camera lens and photosurface.
Disclosure:-The present invention relates to optical field, in particular to the adjustment machine and Method of Adjustment of a kind of high-definition camera automatic aligning camera lens and photosurface.High-definition camera includes lens mount, sensor devices and lens assembly to be adjusted;Adjustment machine includes rack, lens mount positioning tool, camera lens clip claw assembly, focus adjusting mechanism and image probe mechanism;Image probe mechanism includes mounting rack and image probe, one of image probe is set to remaining image probe on the central axis of sensor devices and is centrally located axis surrounding, and the virtual image of virtual image test chart caused by each image probe and in the same plane forms;Adjustment machine further includes control device, can control focus adjusting mechanism movement to drive camera lens clip claw assembly to treat and position of the lens assembly on lens mount is adjusted to be adjusted.The present invention has the advantages that distortion is small, occupies little space, and guarantees that high-definition camera and sensor devices assembly constituency are good, quality is high, speed is fast.
Problem:-The present invention relates to the field of optics and in particular relates to an adjustment machine with a high-definition camera automatically aligning to a lens and a photosensitive surface and an adjustment method using clip claw assembly. Adjustment machine includes rack, lens mount positioning tool, camera lens clip claw assembly, focus adjusting mechanism and image probe mechanism;Image probe mechanism includes mounting rack and image probe,
Solution: - Our invention coupler mechanism for planar recession positional adjustment relates to Planar Precision Positional Adjustment for State-of-the-Art Optical Components. Our invention increases the accuracy of the alignment process and reduces the effort and time. Our invention allows precision planner motion (in x-y plane) of an optical component without any change of any inters spatial distance/airgap & tilt. In our invention the adjustment mechanism is an add on to convention mounting structure and provides an extra degree of freedom. Our invention will not degrade the optical quality inherently. Our invention increases accuracy and reduces time and effort.
Positional correction mechanism (2) is not incorporated in any optical systems (3). The said invention addresses these issues and provides the solution in addition to in-situ adjustment.
Summary of the Invention:-
Our invention relates to Planar Precision Positional Adjustment for precision Optical Components. Our invention increases the accuracy of the alignment process and reduces the effort and time.
Positional correction mechanism (2) is not incorporated in any optical systems (3). The said invention addresses these issues and provides the solution in addition to in-situ adjustment.
As a torque applied on adjusting nut (12), The force F started acting on end pin (13) and vanes (11), due to left-handed threading on end pin (13) and right-handed threading on vanes (11) and corresponding similar threading on adjusting nut (12). End pin (13) and vane (11) will try to come closer or away as per direction of torque which will cause vanes (11) under tension or compression.
On simultaneous application of torque on opposite adjusting nut V1 - V3 & V2 - V4 (7-9 or 8-10) on opposite direction (Clockwise & Anticlockwise or vice-versa) will allows precise movement of optics-2 mount (2) in x – y plane (16-17 Plane).
By adding an extra degree of freedom (Planer Positional Adjustment) on Mirror - 2 sub assembly (2), the mentioned mechanism helps to make finer alignment of units under alignment (optical assembly) with the accuracy of 1 µm.
Our invention allows precision planer motion (in x-y plane) of any optical component without any change of inter spatial distance/air gap & tilt. Our invented adjustment mechanism is an add on to the convention mounting structure and provides an extra Degree of Freedom. Addition of adjustment mechanism on conventional design of structure will not degrade the optical quality inherently. No additional obscuration (Clipping) of incoming beam of Light by Mirror-2 Sub Assembly (2) with Planer Positional Adjustment Mechanism compared to conventional mechanism.
During the alignment process of two mirror optics in our invention, it will reduce the time and effort, aberration analysis and correction at lab level.
Description Of The Drawing(s) :-
Our invention allows precision planner motion (in x-y plane) of an optical component without any change of any inters spatial distance/air gap & tilt. Our invention will not degrade the optical quality inherently. Our invention will reduce time and effort.
Fig. 1 Shows the schematic of two mirror systems. Optical systems, comprising two or more curved mirrors (Spherical or Aspherical – Convex or Concave) (1 & 2) require the positional errors to be controlled & compensated in sub-micron level to achieve the imaging performance. The schematic of two mirror systems shown in fig.-1. Mirror 1 Sub – Assembly (1) comprises Optics-1 & Opto-Mech. Parts
Fig. 2 Shows Mirror – 2 Sub-Assembly with unique planar precision positional adjustment mechanism. Mirror 2 Sub. Assembly (2) comprises Optics 2 & Opto-Mech. Parts (Vane Sub- Assembly - 1(7), Vane Sub- Assembly – 2 (8), Vane Sub- Assembly – 3 (9) & Vane Sub- Assembly – 4 (10) ) Opto-mechanical parts provide support to the Mirror -2 (2) . Each vanes sub assembly (7, 8, 9 & 10) comprises following parts:
Vanes (11): Support Structure for Mirror - 2 and its mounts.
Adjusting Nut (12): Connecting vanes and end pin.
End Pin (13) : Connecting end pin and Mirror- 2 support rings.
Fig. 3 Ideal Optical Configurations of 2 Mirror Systems
Fig. 4 Optical Configurations of 2 mirror systems with positional error on Mirror 2
Fig. 5 Decenter in Mirror -2 with respect to ideal position
Fig.6 Working principle of planar precision positional adjustment mechanism
To achieve Diffraction limited performance of multi mirror optical system (3), optical axis (5 & 6) and mechanical axis (4) should coincide with high precision during the assembly of optical systems (3). The Decentration (fig.– 4 & 5) between the mirrors causes aberrations, which affects imaging performance of the optical systems.
The decentral error (fig.-4 & 5) into the mirrors causes the off-axis aberrations resulting in degraded image quality of imaging optical systems. To correct these residual positional errors. Ideal optical axis (5 & 6) of both optics (1 & 2) with mechanical axis (4) of optical systems (3) should be Coincident (Shown in Fig.-3). In actual assembly, there are misalignment of optical axis (5 & 6) with mechanical axis (4) of optical systems (Shown in Fig.-4). The image quality of Optical systems (3) gets degraded due to its manufacturing and assembly errors. Fig.-4 depicts the alignment parameters, which are sensitive for two mirror systems. The decenter occurred in the mechanical axis of optical component introduces off axial aberrations like astigmatism to the incident radiation propagating through or from it by refraction or reflection respectively. As a torque applied on adjusting nut (12), The force F started acting on end pin (13) and vanes (11), due to left-handed threading on end pin (13) and right-handed threading on vanes (11) and corresponding similar threading on adjusting nut (12). End pin (13) and vane (11) will try to come closer or away as per direction of torque which will cause vanes (11) under tension or compression.
On simultaneous application of torque on opposite adjusting nut V1 - V3 & V2 - V4 (7-9 or 8-10) on opposite direction (Clockwise & Anticlockwise or vice-versa) will allows precise movement of optics-2 mount (2) in x – y plane (16-17 Plane).
By adding an extra degree of freedom (Planer Positional Adjustment) on Mirror - 2 sub assembly (2), the mentioned mechanism helps to make finer alignment of units under alignment (optical assembly) with the accuracy of 1 µm.
Detailed Description Of The Invention :-
Our invention allows precision planner motion (in x-y plane) of an optical component without any change of any inter spatial distance/air gap & tilt. In our invention the adjustment mechanism is an add on to convention mounting structure and provides an extra degree of freedom. Our invention will not degrade the optical quality inherently. Our invention increases accuracy and reduces time and effort.
The Configuration and Operation of an Embodiment: -
The State-of-the-Art optical systems, comprising two or more curved mirrors (Spherical or Aspherical – Convex or Concave) (1 & 2) require the positional errors to be controlled & compensated in sub-micron level to achieve the imaging performance. The schematic of two mirror systems shown in fig.-1.
To achieve Diffraction limited performance of multi mirror optical system (3), optical axis (5 & 6) and mechanical axis (4) should coincide with high precision during the assembly of optical systems (3). The Decentration (fig.– 4 & 5) between the mirrors causes aberrations, which affects imaging performance of the optical systems.
The decentral error (fig.-4 & 5) into the mirrors causes the off-axis aberrations resulting in degraded image quality of imaging optical systems. It is very important to correct these residual positional errors.
Ideal optical axis (5 & 6) of both optics (1 & 2) with mechanical axis (4) of optical systems (3) should be Coincident (Shown in Fig.-3). In actual assembly, there are misalignments of optical axis (5 & 6) with mechanical axis (4) of optical systems (Shown in Fig.-4). The image quality of Optical systems (3) gets degraded due to its manufacturing and assembly errors. Fig.-4 depicts the alignment parameters, which are sensitive for two mirror systems. The decenter occurred in the mechanical axis of optical component introduces off axial aberrations like astigmatism to the incident radiation propagating through or from it by refraction or reflection respectively.
Positional correction mechanism (2) is not incorporated in any optical systems (3). The said invention addresses these issues and provides the solution in addition to in-situ adjustment.
As a torque applied on adjusting nut (12), The force F started acting on end pin (13) and vanes (11), due to left-handed threading on end pin (13) and right-handed threading on vanes (11) and corresponding similar threading on adjusting nut (12). End pin (13) and vane (11) will try to come closer or away as per direction of torque. Which will cause vanes (11) under tension or compression.
On simultaneous application of torque on opposite adjusting nut V1 - V3 & V2 - V4 (7-9 or 8-10) on opposite direction (Clockwise & Anticlockwise or vice-versa) will allows precise movement of optics-2 mount (2) in x – y plane (16-17 Plane).
By adding an extra degree of freedom (Planer Positional Adjustment) on Mirror - 2 sub assembly (2), the mentioned mechanism helps to make finer alignment of units under alignment (optical assembly) with the accuracy of 1 µm.

Image 7 - Obscuration (Clipping) of Incoming Beam of Light by Optics-2

Image 8 - Optical Component holding mechanism a) Conventional b) Claimed Mechanism (Planer Positional Adjustment Mechanism)

Image 9 - Mirror-2 Sub Assembly (2) with Planer Positional Adjustment Mechanism
Use of the invention:
This invention has been advantageous for Precision Positional Adjustment in any optical & electronic components (Where ever any product needs positional adjustment) or lab setup. Our invention can be applied in: -
? Precision Positional Adjustment of Mirror
? Precision Positional Adjustment of Optical Components like prism, cylindrical lenses etc.
? Precision Positional Adjustment of Opto-Electronic Component like source, sensors etc.
Best method to use the invention: -
To serve precision alignment in 2 Mirror based Optical Systems.
1. Ideal Optical Configurations of 2 Mirror Systems: Coincident optical axis of both optics with mechanical axis of optical systems.
2. Optical Configurations of 2 mirror systems with positional error on anyone of optics: No coincidence of optical axis of both optics with mechanical axis of optical systems.

I/ WE Claim:-
1. A Precision Planar Positional Adjustment device for precision Optical Components comprises of when torque is applied on adjusting nut (12), the force ‘F’ acts on end pin (13) and vanes (11), due to left-handed threading on end pin (13) and right-handed threading on vanes (11) and corresponding similar threading on adjusting nut (12), end pin (13) and vane (11) will try to come near or far as per direction of torque which will cause vanes (11) under tension or compression.
2. A device as claimed in claim 1 wherein on simultaneous application of torque on opposite adjusting nut of vane sub-assembly V1 - V3 & V2 - V4 (7-9 or 8-10) on opposite direction (Clockwise & Anticlockwise or vice-versa) will allows precise movement of optics-2 mount (2) in x – y plane (16-17 Plane).
3. A device as claimed in claim 1 wherein by adding an extra degree of freedom (Planer Positional Adjustment) on Mirror - 2 sub assembly (2), the device will make finer alignment of units under alignment (optical assembly) with the accuracy of 1 µm.
4. A device as claimed in claim 1 wherein precision planer motion (in x-y plane) of any optical component without any change of interspatial distance/air gap & tilt.

For, the Applicant
H G Banker (Patent Agent IN/PA-2131)

Abstract:-
Our invention titled “UNIQUE THREADED BASED MECHANISM FOR PLANAR RECISION POSITIONAL ADJUSTMENT.” relates to Precision Positional Adjustment in any optical & electronic components (Where ever any product needs positional adjustment) or lab setup. Our invention allows precision planer motion (in x-y plane) of any optical component without any change of inter spatial distance/air gap & tilt. Our invented adjustment mechanism is an add on to convention mounting structure and provides an extra Degree of Freedom. Addition of adjustment mechanism on conventional design of structure will not degrade the optical quality inherently. During the alignment process of two mirror optics in our invention, it will reduce the time and effort. Our invention can be applied in Precision Positional Adjustment of Mirror, Precision Positional Adjustment of Optical Components like prism, cylindrical lenses etc and also in Precision Positional Adjustment of Opto-Electronic Component like source, sensors etc.

Figure of abstract