Patents Assigned to MLOptic Corp.
  • Patent number: 12124060
    Abstract: A prism module for enabling a large field of view high resolution sampling of incoming rays, the prism module including a plurality of elongated prisms disposed about a central axis, each of the prisms including a fore surface; an aft surface; and a reflecting surface connected on a first edge to the fore surface and connected on a second edge to the aft surface, wherein the fore surface is configured to receive the incoming light rays orthogonally disposed with respect to the fore surface, the reflecting surface configured to reflect the incoming light rays to cause outgoing light rays to exit at a right angle through the aft surface to form an image with a maximum distortion not recognizable by a human eye.
    Type: Grant
    Filed: December 28, 2021
    Date of Patent: October 22, 2024
    Assignee: MLOptic Corp.
    Inventors: Pengfei Wu, Wei Zhou, Jiang He, Siyuan Liang
  • Patent number: 12085781
    Abstract: A device for providing an output beam in a direction, the device including a plate including an exit pupil; a plurality of rows of optical elements disposed substantially in a first plane, each row of optical elements in the first plane including: at least one beam splitter; and a plurality of rows of optical elements disposed substantially in a second plane, the optical elements in the second plane include mirrors, wherein the second plane is disposed between the exit pupil and the first plane, wherein the at least one beam splitter at the first plane is configured to transmit an incident beam to one of a subsequent optical element at the first plane and a subsequent optical element at the second plane before being reflected to exit through the exit pupil.
    Type: Grant
    Filed: December 23, 2021
    Date of Patent: September 10, 2024
    Assignee: MLOptic Corp.
    Inventors: Teresa Zhang, Wei Zhou, Jiang He, Siyuan Liang
  • Patent number: 12028509
    Abstract: An optical target system for a device under test disposed in an optical path, the optical target system including a pupil, a lens system and a target configured to be adjustable in position along the optical path such that the object distance of the target with respect to the lens system, is adjustable, the lens system is disposed between the pupil and the target along the optical path, wherein a first virtual image cast behind the target is of a first size when the target is disposed at a first position along the optical path, a second virtual image cast behind the target is of a second size when the target is disposed at a second position along the optical path.
    Type: Grant
    Filed: December 4, 2023
    Date of Patent: July 2, 2024
    Assignee: MLOptic Corp.
    Inventors: Pengfei Wu, Zhengyuan Wang
  • Patent number: 11971482
    Abstract: A system for providing six-dimensional position data of an object in a three-dimensional (3D) space, the system including a light source configured to emit a light beam in an x-direction, a mirror including a mirror plane disposed in an x-y plane and a beam splitter configured for reflecting the light beam from the light source onto the mirror before being directed to the object, the light beam reflected by the object onto the beam splitter before being directed through a lens to an image plane to form an image.
    Type: Grant
    Filed: August 18, 2023
    Date of Patent: April 30, 2024
    Assignee: MLOptic Corp.
    Inventors: Sophia Shiaoyi Wu, Gary Fu, Sean Huentelman, Wei Zhou
  • Patent number: 11971555
    Abstract: An optical system including an enclosure including a front end and a rear end, a first pair of apertures configured to be disposed on a front plane on the front end of the enclosure and a single optical lens system disposed between the front end and the rear end of the enclosure, wherein the first pair of apertures are configured to allow sets of light rays into the enclosure through the single optical lens system to be cast on an image plane as first and second spots, the image plane being parallel to the front plane, if the first and second spots are concentrically disposed, the sets of light rays are determined to be parallelly disposed with respect to one another, otherwise the sets of light rays are determined to not be parallelly disposed with one another.
    Type: Grant
    Filed: October 30, 2023
    Date of Patent: April 30, 2024
    Assignee: MLOptic Corp.
    Inventors: Pengfei Wu, Siyuan Liang, Wei Zhou
  • Patent number: 11971249
    Abstract: An optical system including an enclosure including a front end and a rear end, a first pair of apertures configured to be disposed on a front plane on the front end of the enclosure and a single optical lens system disposed between the front end and the rear end of the enclosure, wherein the first pair of apertures are configured to allow sets of light rays into the enclosure through the single optical lens system to be cast on an image plane as first and second spots, the image plane being parallel to the front plane, if the first and second spots are concentrically disposed, the sets of light rays are determined to be parallelly disposed with respect to one another, otherwise the sets of light rays are determined to not be parallelly disposed with one another.
    Type: Grant
    Filed: October 30, 2023
    Date of Patent: April 30, 2024
    Assignee: MLOptic Corp.
    Inventors: Pengfei Wu, Ying-Ju Chu, Sean Huentelman
  • Patent number: 11959821
    Abstract: A comprehensive test platform for fluorescence microscope objective lenses, comprising a bottom plate (1), wherein a horizontal adjustment device and a vertical fixing mechanism are provided on the bottom plate (1); the horizontal adjustment device comprises a two-dimensional translation stage (2) and a two-dimensional tilting stage (3) stacked in sequence; a reticle (4) is provided on the two-dimensional tilting stage (3); the vertical fixing mechanism comprises a back plate (6), and the back plate (6) is fixedly connected onto the bottom plate (1); an optical detection device and a guide sliding device (7) in the vertical direction are separately fixedly provided on the back plate (6); and a sliding support (8) that can slide along the guide sliding device is provided on the guide sliding device (7), and a measuring objective lens (5) is fixed on the sliding support (8).
    Type: Grant
    Filed: May 20, 2020
    Date of Patent: April 16, 2024
    Assignee: MLOptic Corp.
    Inventor: Bin Zhang
  • Patent number: 11940269
    Abstract: A system for determining a location of a feature of an object, the system including a first marker including a first area and a surface having two parallel edges and a third edge disposed perpendicularly to the two parallel edges, the two parallel edges are disposed about a first central axis of the two parallel edges; and a sensor configured to provide a distance from the sensor to a portion of the first marker, wherein the sensor is adapted to obtain distances between the sensor and the first marker and an environment surrounding the first marker to form a first map representing the distances corresponding to locations from which the distances are obtained using the sensor and the location of the feature of the object is determined based on at least one corner corresponding to an intersection formed of the third edge and one of the two parallel edges.
    Type: Grant
    Filed: September 29, 2023
    Date of Patent: March 26, 2024
    Assignee: MLOptic Corp.
    Inventors: Bailing Hou, Wei Zhou, Jiang He, Yuanqin Wang
  • Patent number: 11934743
    Abstract: The invention discloses a toric mirror surface shape measurement method. The measurement method is as follows: first, according to the parameter information of the toric mirror to be measured, using three-dimensional modeling software, establish a CAD model of the toric mirror to be measured and then import the CAD model into the three-coordinate machine software, based on the three-coordinate machine to measure and construct the geometric characteristics of the solid toric mirror, establish the workpiece coordinate system, which is consistent with the CAD model coordinate system. Finally, use the three-coordinate machine to perform scanning measurements to the solid toric mirror and compare the scanning result with the theoretical value to obtain the measurement result data. The measurement method of the present invention is based on the three-coordinate measurement technology and has the advantages of strong operability and high measurement accuracy.
    Type: Grant
    Filed: December 13, 2021
    Date of Patent: March 19, 2024
    Assignee: MLOptic Corp.
    Inventors: Zhide Su, Zhiping Song
  • Patent number: 11892609
    Abstract: A lens including a first lens group including three positive singlets and an achromatic doublet for collecting all field rays received at the first lens group while making initial corrections of spherical and color aberrations, a second lens group including a near-symmetrical group including two positive meniscus elements and two negative meniscus elements, wherein the second lens group is configured to correct distortions, a third lens group including two positive lenses with an air gap disposed between the two positive lenses, wherein the third lens group is configured to correct field curvature and astigmatism and a fourth lens group including a triplet and a positive meniscus element, wherein the fourth lens group is configured to correct spherical, coma, axial color and lateral color aberrations, wherein the lens is disposed in an order of the first lens group, the second lens group, the third lens group and the fourth lens group.
    Type: Grant
    Filed: September 11, 2023
    Date of Patent: February 6, 2024
    Assignee: MLOptic Corp.
    Inventors: Pengfei Wu, Wei Zhou
  • Patent number: 11867507
    Abstract: A system for providing a virtual distance of a device under test, the system including a light source, a wedge shear plate including a first surface, a second surface and a wedge angle, wherein the second surface is disposed at the wedge angle with respect to the first surface and the wedge shear plate is configured to be disposed between the device under test and the light source, a first detector configured for receiving a first interference pattern formed as a result of the light source being disposed through and reflected by the first surface and the second surface of the wedge shear plate and a second detector configured for receiving a second interference pattern formed as a result of the light source being disposed through and reflected by the first surface and the second surface of the wedge shear plate.
    Type: Grant
    Filed: May 5, 2023
    Date of Patent: January 9, 2024
    Assignee: MLOptic Corp.
    Inventors: Pengfei Wu, Wei Zhou
  • Patent number: 11867501
    Abstract: A system for calibrating an equipment, the system including a beam splitter; a first reticle configured to be removably attached to the equipment; and an image capture device including an image plane, wherein an image of the first reticle is configured to be received by way of the beam splitter at the image plane along an optical axis of the beam splitter, wherein the orientation as indicated by the first reticle is compared to an orientation of the image plane and if the orientation as indicated by the first reticle differs from the orientation of the image plane, the equipment is rotated about the optical axis of the beam splitter such that the orientation as indicated by the first reticle matches the orientation of the image plane.
    Type: Grant
    Filed: December 28, 2021
    Date of Patent: January 9, 2024
    Assignee: MLOptic Corp.
    Inventors: Pengfei Wu, Wei Zhou, Jiang He, Siyuan Liang
  • Patent number: 11860380
    Abstract: An alignment tool including a first and a second positioning system configured for positioning and orientating a first lens and a second lens respectively, wherein a light beam is configured to be disposed through the first lens and the second lens to cast a light spot on the image plane, if the light spot does not stay stationary on the image plane when at least one of the first lens and the second lens is rotated about the central axis of the light beam, at least one of the first positioning system and the second positioning system is actuated to alter at least one of the position and orientation of at least one of the first lens and the second lens until the light spot becomes stationary on the image plane, indicating the first lens is coaxially disposed with the second lens.
    Type: Grant
    Filed: August 15, 2023
    Date of Patent: January 2, 2024
    Assignee: MLOptic Corp.
    Inventors: Wei Zhou, Yubo Guan, Jiang He
  • Patent number: 11863874
    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.
    Type: Grant
    Filed: December 31, 2021
    Date of Patent: January 2, 2024
    Assignee: MLOptic Corp.
    Inventors: Wei Zhou, Nathan Yang, Wei Wang
  • Patent number: 11852464
    Abstract: A chromatic confocal sensor configured for calibrating an orientation of an equipment about the optical axis of the chromatic confocal sensor, wherein the equipment is disposed at a first orientation about the optical axis of the chromatic confocal sensor, the chromatic confocal sensor including a light source, a collimator, a lens and a reticle, wherein the light source, the collimator and the lens are coaxially disposed along the optical axis, the reticle is configured to be interposable between the collimator and the lens along the optical axis, an image is configured to be cast by the light source through the collimator, the reticle and the lens on the equipment, the image is disposed at a second orientation about the optical axis and the equipment is calibratable by aligning the equipment with the image such that the first orientation approaches the second orientation.
    Type: Grant
    Filed: December 20, 2021
    Date of Patent: December 26, 2023
    Assignee: MLOptic Corp.
    Inventors: Wei Zhou, Jiang He, Siyuan Liang
  • Patent number: 11823406
    Abstract: A system for providing an object distance of a device under test (DUT), the system including a first lens, a second lens, an optical pinhole disposed between the first lens and the second lens, a detector and a pair of gratings disposed between the second lens and the detector, the detector configured for receiving a Moiré pattern formed as a result of light from the DUT being disposed through the first lens, the optical pinhole, the second lens and the pair of gratings, wherein the object distance is determined based on the Moiré pattern and one or more properties of the pair of gratings.
    Type: Grant
    Filed: July 19, 2023
    Date of Patent: November 21, 2023
    Assignee: MLOptic Corp.
    Inventors: Sophia Shiaoyi Wu, Pengfei Wu
  • Patent number: 11821755
    Abstract: A method for providing an object distance of a device under test (DUT) using a system including a first lens, a second lens, an optical pinhole disposed between the first lens and the second lens, a detector, a pair of gratings disposed between the second lens and the detector, the detector configured for receiving a Moiré pattern formed as a result of light from of the DUT being disposed through the first lens, the optical pinhole, the second lens and the pair of gratings, the method including obtaining the Moiré pattern using the detector and determining the object distance based on the Moiré pattern and one or more properties of the pair of gratings.
    Type: Grant
    Filed: July 19, 2023
    Date of Patent: November 21, 2023
    Assignee: MLOptic Corp.
    Inventors: Pengfei Wu, Sophia Shiaoyi Wu
  • Patent number: 11796821
    Abstract: A method for providing a virtual distance of a device under test using a system including a light source, a wedge shear plate, a first detector and a second detector, wherein the wedge shear plate is disposed between the device under test and the light source, the first detector configured for receiving a first interference pattern formed as a result of the light source being disposed through and reflected by the wedge shear plate, and the second detector configured for receiving a second interference pattern formed as a result of the light source being disposed through and reflected by the wedge shear plate, the method including obtaining the first interference pattern using the first detector, obtaining the second interference pattern using the second detector and determining the virtual distance based on the first interference pattern, the second interference pattern, the light source and the wedge shear plate.
    Type: Grant
    Filed: May 5, 2023
    Date of Patent: October 24, 2023
    Assignee: MLOptic Corp.
    Inventors: Pengfei Wu, Wei Zhou
  • Patent number: 11754832
    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.
    Type: Grant
    Filed: March 20, 2023
    Date of Patent: September 12, 2023
    Assignee: MLOptic Corp.
    Inventors: Pengfei Wu, Wei Zhou, Wei Wang, Yongshui Cai
  • Patent number: 11740156
    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.
    Type: Grant
    Filed: January 4, 2023
    Date of Patent: August 29, 2023
    Assignee: MLOptic Corp.
    Inventors: Wei Zhou, Zhengyuan Wang, Wei Wang, Yongshui Cai