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公开(公告)号：US20240319041A1
公开(公告)日：2024-09-26
申请号：US18620384
申请日：2024-03-28
Applicant: MLOptic Corp
Inventor： Pengfei Wu , Wei Zhou , Wei Wang , Yongshui Cai
IPC: G01M11/02
CPC classification number: G01M11/0257
Abstract: A wavefront tester for measuring the wavefront of a sample via an optical path, the wavefront tester including a mirror, an imaging lens, an aperture, a beam splitter, a wavefront sensor, a lens selection system including a plurality of optical lenses, a suitable optical lens of which is commensurate with the sample and selected to be disposed in the optical path and a light source directed in a first direction through the optical path by the beam splitter through the suitable optical lens and the sample to the mirror such that the light source is redirected in a second direction opposite the first direction through the optical path and the beam splitter, the aperture and the imaging lens to be received at the wavefront sensor.
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公开(公告)号：US11474324B1
公开(公告)日：2022-10-18
申请号：US17683295
申请日：2022-02-28
Applicant: MLOptic Corp
Inventor： Wei Zhou , Pengfei Wu , Wei Wang
Abstract: A system for providing two parallel light beams spaced-apart a selectable distance, the system including: a first beam splitter configured for reflecting a light beam from a light source to create a first datum light beam, the first beam splitter is fixedly attached to a base; a second beam splitter configured for reflecting a transmitted light beam from the light beam from the light source to create a second datum light beam, a third beam splitter configured for reflecting a transmitted light beam from the light beam from the light source to create a third datum light beam, a fourth beam reflecting device configured for reflecting a transmitted light beam from the light beam from the light source to create a fourth light beam. Each of the second, third beam splitters and fourth beam reflecting device is configured to be slidingly attached to the base.
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公开(公告)号：US11681122B1
公开(公告)日：2023-06-20
申请号：US17870891
申请日：2022-07-22
Applicant: MLOptic Corp
Inventor： Wei Zhou , Pengfei Wu , Wei Wang
CPC classification number: G02B7/1822 , G02B27/14 , G02B27/30
Abstract: A system for providing two parallel light beams spaced-apart a selectable distance, the system including: a first beam splitter configured for reflecting a light beam from a light source to create a first datum light beam, the first beam splitter is fixedly attached to a base; a second beam splitter configured for reflecting a transmitted light beam from the light beam from the light source to create a second datum light beam, a third beam splitter configured for reflecting a transmitted light beam from the light beam from the light source to create a third datum light beam, a fourth beam reflecting device configured for reflecting a transmitted light beam from the light beam from the light source to create a fourth light beam. Each of the second, third beam splitters and fourth beam reflecting device is configured to be slidingly attached to the base.
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公开(公告)号：US11425311B1
公开(公告)日：2022-08-23
申请号：US17682143
申请日：2022-02-28
Applicant: MLOptic Corp
Inventor： Wei Zhou , Nathan Yang , Wei Wang , Tang Song
Abstract: A method for controlling an autoexposure function of a camera to a gray level setting, the method including exposing an imaging device of the camera for a first exposure duration and obtaining a first gray level of the imaging device of the camera, exposing the imaging device of the camera for a second exposure duration within the first exposure duration and the maximum exposure duration and obtaining a second gray level of the imaging device of the camera, determining whether the first gray level and the second gray level are upward-trending from the first exposure duration to the second exposure duration and if the first gray level and the second gray level are determined to be upward-trending, interpolating for a target exposure duration based on the gray level setting, the first exposure duration and the first gray level.
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公开(公告)号：US20240231085A1
公开(公告)日：2024-07-11
申请号：US18217476
申请日：2023-06-30
Applicant: MLOptic Corp
CPC classification number: G02B27/0101 , G02B6/4221 , G02B6/4227
Abstract: A method for aligning the projection of a first light source with an in-coupler of a planar waveguide, the method including supplying a secondary light source through an optical path of the planar waveguide to exit at the in-coupler of the planar waveguide as an exit light, determining the concentricity of the exit light with respect to the first light source, and improving the concentricity of the exit light with respect to the first light source by adjusting the positioning of the first light source such that the exit light becomes concentric with the projection of the first light source.
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Patent Agency Ranking
公开(公告)号：US11863874B2
公开(公告)日：2024-01-02
申请号：US17567105
申请日：2021-12-31
Applicant: MLOptic Corp
Inventor： Wei Zhou , Nathan Yang , Wei Wang
Abstract: A method for controlling an autoexposure function of a camera to a gray level setting, the method including establishing a critical exposure time of an image sensing device of the camera, wherein the critical exposure time of the image sensing device of the camera is an exposure time at which a first sensed gray level of the image sensing device of the camera is disposed at a target gray level, the sensed gray level is disposed in a trend of decreasing sensed gray level values; exposing the image sensing device of the camera to light to obtain a second sensed gray level and comparing the second sensed gray level at the critical exposure time to the target gray level, if the second sensed gray level is disposed at least at the target gray level, limiting the exposure of the image sensing device of the camera to the critical exposure time.
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公开(公告)号：US11740156B1
公开(公告)日：2023-08-29
申请号：US18093314
申请日：2023-01-04
Applicant: MLOptic Corp
Inventor： Wei Zhou , Zhengyuan Wang , Wei Wang , Yongshui Cai
IPC: G01M11/02
CPC classification number: G01M11/0285
Abstract: A dimming tester station for testing an optical object, the optical object disposed along an axis represented by a central axis of the optical object, the dimming tester station including a motion stage for supporting the optical object, wherein the optical object is disposed between at least one camera with an entrance pupil of the at least one camera disposed in a first plane and a light emitting panel configured to emit light through a front surface disposed in a second plane, the central axis is substantially perpendicular to the first plane and the second plane, the entrance pupil of the at least one camera is disposed in an orientation facing at least a portion of the front surface, the motion stage is configured to be adjustable such that the location of the optical object from each of the first plane and the second plane is alterable.
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公开(公告)号：US11754832B1
公开(公告)日：2023-09-12
申请号：US18123773
申请日：2023-03-20
Applicant: MLOptic Corp
Inventor： Pengfei Wu , Wei Zhou , Wei Wang , Yongshui Cai
CPC classification number: G02B27/0068 , G02B27/0988 , G02B27/1066 , G02B27/64
Abstract: A wavefront calibration method for a wavefront tester of a lens, the method including: measuring an air wavefront of the wavefront tester without the lens; measuring at least one golden sample wavefront to generate an actual wedge angle and refractive index of the at least one golden sample based on the air wavefront; calculating a measured wedge angle and refractive index based on the actual wedge angle and refractive index of the at least one golden sample; and linear fitting between the actual wedge angle and refractive index and the measured wedge angle and refractive index to produce an actual magnification of the lens.
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公开(公告)号：US11709325B1
公开(公告)日：2023-07-25
申请号：US18093941
申请日：2023-01-06
Applicant: MLOptic Corp
CPC classification number: G02B6/423 , G02B6/3652 , G02B27/0172
Abstract: A method for aligning the projection of a first light source with an in-coupler of a waveguide, the method including supplying a secondary light source through an optical path of the waveguide to exit at the in-coupler of the waveguide as an exit light; determining the concentricity of the exit light with respect to the first light source; and improving the concentricity of the exit light with respect to the first light source by adjusting the positioning of the first light source such that the exit light becomes concentric with the projection of the first light source.
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公开(公告)号：US20230232111A1
公开(公告)日：2023-07-20
申请号：US17567105
申请日：2021-12-31
Applicant: MLOptic Corp
Inventor： Wei Zhou , Nathan Yang , Wei Wang
CPC classification number: H04N5/2353 , G03B7/097 , H04N5/2354
Abstract: A method for controlling an autoexposure function of a camera to a gray level setting, the method including establishing a critical exposure time of an image sensing device of the camera, wherein the critical exposure time of the image sensing device of the camera is an exposure time at which a first sensed gray level of the image sensing device of the camera is disposed at a target gray level, the sensed gray level is disposed in a trend of decreasing sensed gray level values; exposing the image sensing device of the camera to light to obtain a second sensed gray level and comparing the second sensed gray level at the critical exposure time to the target gray level, if the second sensed gray level is disposed at least at the target gray level, limiting the exposure of the image sensing device of the camera to the critical exposure time.
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