CN117029679A - Method and device for searching center point of VR curved surface lens - Google Patents
Method and device for searching center point of VR curved surface lens Download PDFInfo
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- CN117029679A CN117029679A CN202310970931.3A CN202310970931A CN117029679A CN 117029679 A CN117029679 A CN 117029679A CN 202310970931 A CN202310970931 A CN 202310970931A CN 117029679 A CN117029679 A CN 117029679A
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 230000003287 optical effect Effects 0.000 claims abstract description 22
- 230000008859 change Effects 0.000 claims abstract description 11
- 239000011521 glass Substances 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000003595 spectral effect Effects 0.000 claims description 4
- 230000008569 process Effects 0.000 abstract description 5
- 238000010030 laminating Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 235000012771 pancakes Nutrition 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 201000009310 astigmatism Diseases 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/30—Computing systems specially adapted for manufacturing
Abstract
The invention provides a method and a device for searching a center point of a VR curved lens, wherein a plane where a clamp for bearing the VR curved lens is arranged is set as an XY plane, a direction perpendicular to the XY plane is set as a Z axis, and a perpendicular distance from a plane where a distance measuring sensor is arranged to the surface of the VR curved lens is set as a Z value, and the method for searching the center of the VR curved lens in VR laminating equipment comprises the following steps: setting the X value unchanged, and acquiring the Z value measured by a ranging sensor along with the change of the Y value to obtain Y-Z data; performing quadratic curve fitting on the Y-Z data to obtain an extremum Y 0 A value; setting the Y value unchanged, and acquiring the Z value measured by a ranging device along with the change of the X value to obtain X-Z data; performing quadratic curve fitting on the X-Z data to obtain an extremum X 0 A value; determining a curved surfaceThe center point of the lens is X 0 ，Y 0 . The invention can accurately find out the highest/lowest point of each lens, greatly improves the center alignment precision, avoids optical distortion caused by optical center deviation in the following attaching process, and obtains better optical effect.
Description
Technical Field
The invention relates to the technical field of visual positioning, in particular to a method and a device for searching a center point of a VR curved lens.
Background
At present, VR equipment gradually shifts to a technical scheme of Pancake (ultra-short focal optical folding optical path), VR head display based on the technical scheme of Pancake, after an image source enters a lens with a semi-reflection and semi-transmission function, light rays are folded back between the lens, a phase delay plate and a reflective polarizer for multiple times, and finally are emitted from the reflective polarizer. Meanwhile, the lens group does not need to keep a certain distance with the display screen, so that the thickness of the VR head display can be reduced, the thickness of the VR head display is made more compact, and the whole volume of the VR head display is smaller. But the multilayer lens structure makes the optical error tolerance between layers low,
VR head display based on Pancake scheme relates to 3D curved surface laminating technology. To ensure the fitting effect, the 3D curved surfaces of the upper and lower lenses need to be aligned. The lens has a total of multiple lenses, so this process needs to be performed more than once, and if the alignment error is large, the optical error in the following fitting process is further amplified due to the multi-layer amplifying effect of the lens group, resulting in serious distortion or astigmatism of the lens group.
The simplest way of alignment is to align the optical centers of the individual lenses. Because the lens is typically spherical or parabolic, the lens surface is essentially a centrally symmetric 3D curved surface. The optical center alignment of the multiple lenses requires accurate finding of the highest/lowest points of the individual lenses.
Disclosure of Invention
In order to solve the above-mentioned defect, the present invention provides a method and a device for searching the center point of a VR curved lens, which accurately find the highest/lowest point of each lens, greatly improve the alignment accuracy, and avoid the optical error from being amplified in the following lamination process.
In a first aspect, the present invention provides a method for searching a center point of a VR curved lens, including the following steps:
setting a plane where a clamp for bearing the VR curved lens is located as an XY plane, taking the direction vertical to the XY plane as a Z axis, taking the logistic transportation direction parallel to the curved lens in the XY plane as an X axis, and taking the direction vertical to the X direction in the XY plane as a Y axis; taking the vertical distance between the plane where the distance measuring sensor is located and the surface of the curved lens as a Z value;
setting the X value unchanged, and acquiring the Z value measured by a ranging sensor along with the change of the Y value to obtain Y-Z data;
linear fitting is carried out on the Y-Z data to obtain an extremum Y 0 A value;
setting the Y value unchanged, and acquiring the Z value measured by a ranging sensor along with the change of the X value to obtain X-Z data;
linear fitting is carried out on the X-Z data to obtain an extremum X 0 A value;
determining the center point of the curved lens as X 0 ，Y 0 。
In one embodiment of the present invention, the curved lens comprises one of a curved glass and an optical lens.
In one embodiment of the present invention, the Y value is set to Y 0 And acquiring a Z value measured by a ranging sensor along with the change of the X value, and obtaining X-Z data.
In a second aspect, a method for searching a center point of a VR curved lens includes the steps of: setting a plane where a clamp for bearing the VR curved lens is located as an XY plane, taking the direction vertical to the XY plane as a Z axis, taking the vertical distance from the plane where a distance measuring sensor is located to the surface of the curved lens as a Z value, measuring the curved lens along any circle by adopting the distance measuring sensor, fitting the highest point and the lowest point of the Z value on the circle range by using an algorithm, and connecting the highest point and the lowest point, so that the distance measuring sensor measures the connection, and the extreme point of the curved lens is obtained as a central point.
In one embodiment of the invention, the Z value measured by the ranging sensor along with the change of the circumferential angle is acquired, the data of the circumferential angle and Z are obtained, and the data are subjected to algorithm fitting.
In a third aspect, the present invention provides a device for searching a center point of a VR curved lens, including:
two parallel racks;
the two X-axis linear modules are respectively arranged on the rack, and the X-axis linear modules are connected with an X-axis motor;
the two Z-axis linear modules are respectively arranged on the corresponding X-axis linear modules and linearly slide along the X-axis direction on the X-axis linear modules, and the Z-axis linear modules are connected with a Z-axis motor;
the two ends of the cross beam are respectively connected with the two Z-axis linear modules and linearly slide on the Z-axis linear modules along the Z-axis direction;
the Y-axis linear module is arranged on the cross beam and is connected with the Y-axis motor;
and the ranging sensor is connected with the Y-axis linear module and linearly slides along the Y-axis direction on the Y-axis linear module.
In one embodiment of the present invention, the X-axis linear module is provided with an X-axis grating ruler, and the X-axis grating ruler is electrically connected with the PLC controller.
In one embodiment of the invention, the Y-axis linear module is provided with a Y-axis grating ruler, and the Y-axis grating ruler is electrically connected with the PLC.
In one embodiment of the present invention, the ranging sensor is selected from one of a contact-type micro-distance meter, a laser ranging meter and a spectral confocal sensor.
In one embodiment of the invention, the device for searching the center point of the VR curved lens further comprises a mounting frame, a servo motor and a circumferential plate, wherein the sliding block of the Y-axis linear module is connected with the mounting frame, the servo motor is connected with the mounting frame through a motor fixing seat, a transmission shaft of the servo motor is connected with one end of the circumferential plate through a gear, and a ranging sensor is arranged on the lower side of the other end of the circumferential plate.
In summary, the invention provides a method and a device for searching a center point of a VR curved lens, which have the following advantages:
in the invention, the curved lens has a central symmetrical structure, so the contour map is a series of concentric circles. The invention accurately finds out the highest/lowest point of each lens through the characteristics, greatly improves the alignment precision and avoids the optical error amplification in the following attaching process.
The invention also adopts the motor to provide power, the grating ruler collects the position information and feeds back the position information to the motor, the full-closed loop control of the motor driving and the feedback positioning of the grating ruler is realized, and the full-closed loop control device has the advantages of high acceleration, no back clearance error, simple structure, suitability for high-speed linear motion, easy adjustment and control, and strong adaptability and harmony.
Drawings
Fig. 1 is a schematic perspective view of a device for searching a center point of a VR curved lens according to embodiment 1.
Fig. 2 is a top view of a device for finding the center point of the VR curved lens provided in embodiment 1.
Fig. 3 is a schematic diagram of a ranging sensor installation manner of the device for finding the center point of the VR curved lens provided in embodiment 2.
Fig. 4 is a schematic diagram of a method for searching a center point of the VR curved lens provided in embodiment 3.
FIG. 5 is a Y-Z curve obtained by least squares fitting in example 3.
FIG. 6 is an X-Z curve obtained by least squares fitting in example 3.
Fig. 7 is a schematic diagram of a method for searching a center point of the VR curved lens provided in embodiment 4.
Fig. 8 is a schematic diagram of a method for searching a center point of the VR curved lens provided in embodiment 5.
Main element symbol description:
11. a first frame; 12. a second frame; 21. a first X-axis linear module; 22. a second X-axis linear module; 31. a first Z-axis straight line module; 32. a second Z-axis linear module; 4. a cross beam; 5. a Y-axis linear module; 6. a mounting frame; 7. a ranging sensor; 71. a circumferential plate; 8. a servo motor; 81. a motor fixing seat; 82. and a transmission shaft.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
Example 1
As shown in fig. 1 and 2, a device for searching a center point of a VR curved lens includes: the device comprises a first rack, a second rack, a first X-axis linear module, a second X-axis linear module, a first Z-axis linear module, a second Z-axis linear module, a cross beam, a Y-axis linear module and a ranging sensor.
Wherein the first frame 11 and the second frame 12 are arranged in parallel.
The first X-axis linear module 21 is arranged on the upper side of the first frame 11; the first X-axis linear module 21 is connected to a first X-axis motor. The second X-axis linear module 22 is mounted on the upper side of the second frame 12, and the second X-axis linear module 22 is connected to the second X-axis motor.
In this embodiment, the X-axis linear module is provided with an X-axis grating ruler, and the X-axis grating ruler is electrically connected to the PLC controller. The motor provides power, the grating ruler collects position information and feeds the position information back to the motor, and full-closed loop control of motor driving and grating ruler feedback positioning is achieved.
The first Z-axis linear module 31 is vertically disposed with the first X-axis linear module 21, and the first Z-axis linear module 31 is connected to the sliding table of the first X-axis linear module 21 through a connector, so that the first Z-axis linear module 31 slides on the first X-axis linear module 21 along the X-axis direction. The first Z-axis linear module 31 is connected to the first Z-axis motor.
The second Z-axis linear module 32 is perpendicular to the second X-axis linear module 22, and the second Z-axis linear module 32 is connected to the sliding table of the second X-axis linear module 22 through a connector, so that the second Z-axis linear module 32 slides on the second X-axis linear module 22 along the X-axis direction. The second Z-axis linear module 32 is connected to a second Z-axis motor.
Both ends of the cross beam 4 are respectively connected with sliding tables on the first Z-axis linear module 31 and the second Z-axis linear module 32, and the first Z-axis linear module 31 and the second Z-axis linear module drive the cross beam 4 to linearly slide along the Z-axis direction.
The Y-axis linear module 5 is arranged on the upper side of the cross beam 4. The Y-axis linear module 5 is connected with a Y-axis motor. The mounting frame is connected with the sliding table of the Y-axis linear module 5 and linearly slides on the Y-axis linear module 5 along the Y-axis direction.
In this embodiment, the Y-axis linear module is provided with a Y-axis grating ruler, and the Y-axis grating ruler is electrically connected with the PLC controller. The motor provides power, the grating ruler collects position information and feeds back the position information to the motor, and full-closed loop control of motor driving and grating ruler feedback positioning is achieved
The mounting frame is provided with at least one distance measuring sensor. The distance measuring sensor is selected from one of a contact type micro-distance meter, a laser distance meter and a spectrum confocal sensor. The spectral confocal sensor has the advantages of non-contact, strong interference resistance, high speed, large inclination angle fitness and the like, so the spectral confocal sensor is used as a preferred sensor of the embodiment.
Example 2
The difference between this embodiment and embodiment 1 is that, as shown in fig. 3, the searching device for the center point of the VR curved lens further includes a mounting frame, a servo motor and a circumferential plate, the slide block of the Y-axis linear module is connected with the mounting frame, the servo motor is connected with the mounting frame through a motor fixing seat, the transmission shaft of the servo motor is connected with one end of the circumferential plate through a gear, and a ranging sensor is installed at the lower side of the other end of the circumferential plate.
Example 3
The apparatus provided in example 1 was used to find the center point of a VR curved lens.
And using a ranging sensor to continuously measure any straight line in the VR concave glass or the optical lens, and using plc/acquisition card and other devices to synchronously acquire the x-y position of the grating ruler and the real-time distance reading Z of the ranging sensor.
Setting a plane where a clamp for bearing the VR curved lens is located as an XY plane, taking the direction vertical to the XY plane as a Z axis, taking the logistic transportation direction parallel to the curved lens in the XY plane as an X axis, and taking the direction vertical to the X direction in the XY plane as a Y axis; and taking the vertical distance from the horizontal plane of the ranging sensor to the surface of the curved lens as a Z value.
In the first step, for the convenience of calculation, the position of the X axis is set unchanged, the Y axis is moved, and the linkage condition of the Y axis and the Z axis is considered.
(as indicated by line a in fig. 4).
Since the lens surface is a centrally symmetric surface, the Y-Z coordinates can be plotted as a curve and a least squares fit can be used to obtain the Y-Z curve, as shown in FIG. 5. Obtaining the coordinate Y of the highest point position of the curve 0 The value is 5.
In the second step, the Y value is set to 0.012, the X value is changed, and the ranging sensor is measured along the X axis (as line b in FIG. 4), so that a continuous X-Z array can be obtained. The X-Z coordinates were plotted as a curve and the least squares fit was used to obtain the X-Z curve as shown in FIG. 6. Acquiring the coordinate X of the highest point of the X-Z curve and the position of the highest point of the curve 0 The value was 0.016.
Then VR concave glass or optical lens is concave nadir coordinates of (6, 5).
Similarly, the peak coordinates of a VR convex glass or optical lens can also be measured by this method.
Example 4
The apparatus provided in example 1 was used to find the center point of a VR curved lens.
A ranging sensor is used to draw two intersecting straight lines on the VR concave glass or optical lens surface as shown in fig. 7.
And drawing the Y-Z coordinates into a curve, and fitting by using a least square method to obtain the Y-Z curve. Obtaining the coordinate Y of the highest point position of the curve 0 Values.
And drawing the X-Z coordinates into a curve, and fitting by using a least square method to obtain the X-Z curve. Obtaining the highest point position of the curveCoordinates X of the arrangement 0 Values.
Determining the minimum point coordinate of the VR concave glass or the optical lens as (X) 0 ，Y 0 )。
Similarly, the peak coordinates of a VR convex glass or optical lens can also be measured by this method.
Example 5
The apparatus provided in example 2 was used to find the VR curve lens center point.
As shown in fig. 8, a plane where a fixture for carrying a VR curved lens is located is set as an XY plane, a direction perpendicular to the XY plane is set as a Z axis, a perpendicular distance from the plane where a ranging sensor is located to the surface of the VR curved lens is set as a Z value, the ranging sensor is used to measure along any circle on the surface of the VR concave glass or the optical lens, the Z value measured by the ranging sensor along with the change of the circumferential angle is obtained, the data of the circumferential angle and Z are obtained, the highest point and the lowest point of the Z value on the circular range are fitted by an algorithm, and the highest point and the lowest point are connected, so that the ranging sensor measures the connection, and the coordinates of the lowest point of the VR concave glass or the optical lens are obtained.
Similarly, the peak coordinates of a VR convex glass or optical lens can also be measured by this method.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The method for searching the center point of the VR curved surface lens is characterized by comprising the following steps of:
setting a plane where a clamp for bearing the VR curved lens is located as an XY plane, taking the direction vertical to the XY plane as a Z axis, taking the logistic transportation direction parallel to the curved lens in the XY plane as an X axis, and taking the direction vertical to the X direction in the XY plane as a Y axis; taking the vertical distance between the plane where the distance measuring sensor is located and the surface of the curved lens as a Z value;
setting the X value unchanged, and acquiring the Z value measured by a ranging sensor along with the change of the Y value to obtain Y-Z data;
linear fitting is carried out on the Y-Z data to obtain an extremum Y 0 A value;
setting the Y value unchanged, and acquiring the Z value measured by a ranging sensor along with the change of the X value to obtain X-Z data;
linear fitting is carried out on the X-Z data to obtain an extremum X 0 A value;
determining the center point of the curved lens as X 0 ，Y 0 。
2. The method of claim 1, wherein the curved lens comprises one of a curved glass and an optical lens.
3. The method for finding a center point of a VR curved lens as set forth in claim 1, wherein the Y value is set to Y 0 And acquiring a Z value measured by a ranging sensor along with the change of the X value, and obtaining X-Z data.
4. The method for searching the center point of the VR curved surface lens is characterized by comprising the following steps of:
setting a plane where a clamp for bearing the VR curved surface lens is located as an XY plane, setting the direction vertical to the XY plane as a Z axis, and setting the vertical distance between the plane where a distance measuring sensor is located and the surface of the curved surface lens as a Z value;
and measuring the curved lens along any circle by adopting a distance measuring sensor, fitting the highest point and the lowest point of the Z value on the circle range by using an algorithm, and connecting the highest point and the lowest point, so that the distance measuring sensor measures the connecting line, and the extreme point of the curved lens is obtained as the central point.
5. The method for finding a center point of a VR curved lens according to claim 4, wherein the distance measuring sensor measures the Z value according to the change of the circumference angle, obtains the data of the circumference angle and Z, and performs algorithm fitting on the data.
6. A device for finding a center point of a VR curved lens, comprising:
two parallel racks;
the two X-axis linear modules are respectively arranged on the rack, and the X-axis linear modules are connected with an X-axis motor;
the two Z-axis linear modules are respectively arranged on the corresponding X-axis linear modules and linearly slide along the X-axis direction on the X-axis linear modules, and the Z-axis linear modules are connected with a Z-axis motor;
the two ends of the cross beam are respectively connected with the two Z-axis linear modules and linearly slide on the Z-axis linear modules along the Z-axis direction;
the Y-axis linear module is arranged on the cross beam and is connected with the Y-axis motor;
and the ranging sensor is connected with the Y-axis linear module and linearly slides along the Y-axis direction on the Y-axis linear module.
7. The device for finding a center point of a VR curved lens according to claim 6, wherein the X-axis linear module is provided with an X-axis grating ruler, and the X-axis grating ruler is electrically connected with the PLC controller.
8. The device for finding a center point of a VR curved lens according to claim 6, wherein the Y-axis linear module is provided with a Y-axis grating ruler, and the Y-axis grating ruler is electrically connected with the PLC controller.
9. The apparatus for searching for a center point of a VR curved lens of claim 6, wherein the ranging sensor is selected from one of a contact micro-range, a laser range finder and a spectral confocal sensor.
10. The device for finding a center point of a VR curved lens according to claim 6, further comprising a mounting frame, a servo motor and a circumferential plate, wherein the slide block of the Y-axis linear module is connected with the mounting frame, the servo motor is connected with the mounting frame through a motor fixing seat, a transmission shaft of the servo motor is connected with one end of the circumferential plate through a gear, and a ranging sensor is mounted on the lower side of the other end of the circumferential plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310970931.3A CN117029679A (en) | 2023-08-03 | 2023-08-03 | Method and device for searching center point of VR curved surface lens |
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| CN202310970931.3A CN117029679A (en) | 2023-08-03 | 2023-08-03 | Method and device for searching center point of VR curved surface lens |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09325085A (en) * | 1996-06-05 | 1997-12-16 | Ricoh Co Ltd | Method and device for measuring lens surface decentration |
| CN104596420A (en) * | 2015-01-26 | 2015-05-06 | 北京卫星环境工程研究所 | Accurate measurement method for measuring benchmark cubic mirror central point position with laser tracker |
| CN110411367A (en) * | 2018-04-26 | 2019-11-05 | Ａｇｃ株式会社 | Curve form check device |
| CN211926792U (en) * | 2020-05-28 | 2020-11-13 | 中机数控科技（福建）有限公司 | Automatic detection device for arc-shaped optical lens |
| CN113175893A (en) * | 2021-04-15 | 2021-07-27 | 中国工程物理研究院激光聚变研究中心 | Optical free-form surface full-aperture detection method based on multi-error real-time compensation |
| CN116222421A (en) * | 2023-02-03 | 2023-06-06 | 领先光学技术(江苏)有限公司 | Lens bending detection equipment and detection method thereof |
-
2023
- 2023-08-03 CN CN202310970931.3A patent/CN117029679A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09325085A (en) * | 1996-06-05 | 1997-12-16 | Ricoh Co Ltd | Method and device for measuring lens surface decentration |
| CN104596420A (en) * | 2015-01-26 | 2015-05-06 | 北京卫星环境工程研究所 | Accurate measurement method for measuring benchmark cubic mirror central point position with laser tracker |
| CN110411367A (en) * | 2018-04-26 | 2019-11-05 | Ａｇｃ株式会社 | Curve form check device |
| CN211926792U (en) * | 2020-05-28 | 2020-11-13 | 中机数控科技（福建）有限公司 | Automatic detection device for arc-shaped optical lens |
| CN113175893A (en) * | 2021-04-15 | 2021-07-27 | 中国工程物理研究院激光聚变研究中心 | Optical free-form surface full-aperture detection method based on multi-error real-time compensation |
| CN116222421A (en) * | 2023-02-03 | 2023-06-06 | 领先光学技术(江苏)有限公司 | Lens bending detection equipment and detection method thereof |
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