Patents Examined by Adam W Booher
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Patent number: 11802996Abstract: A lens system for infrared (IR) imaging, including a molded first lens element and an aberration correction second lens element. The first lens element is made of chalcogenide glass and has a first and second surface, one of the first and second surfaces of the first lens element being a diffractive surface. The second lens element has a first and second surface, one of the first and second surfaces being a planar surface and neither of the first and second surfaces being a diffractive surface. The second lens element is of a different material than the second lens element.Type: GrantFiled: May 1, 2020Date of Patent: October 31, 2023Assignee: LIGHTPATH TECHNOLOGIES, INC.Inventors: Fujian Ding, Mark Lifshotz
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Patent number: 11796723Abstract: An optical device is provided. The optical device includes a plurality of IR-cut pixels, a plurality of IR-pass pixels, and a plurality of grids. The grids surround the IR-cut pixels and the IR-pass pixels. Each IR-cut pixel includes a first grating structure. A method for fabricating the optical device is also provided.Type: GrantFiled: March 12, 2021Date of Patent: October 24, 2023Assignee: VISERA TECHNOLOGIES COMPANY LIMITEDInventor: Zong-Ru Tu
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Patent number: 11799261Abstract: Apparatus for and method of aligning optical components such as mirrors to facilitate proper beam alignment using an image integration optical system is used to integrate images from multiple optical features such as from both left mirror bank and right mirror bank to present the images simultaneously to the camera system. A fluorescent material may be used to render a beam footprint visible and the relative positions of the footprint and an alignment feature may be used to align the optical feature.Type: GrantFiled: August 10, 2021Date of Patent: October 24, 2023Assignee: Cymer, LLCInventor: Hong Ye
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Patent number: 11796786Abstract: A confocal microscope for imaging tissue having an imaging head for capturing optically formed microscopic sectional images of tissue samples, a platform upon which is disposed a linear stage for moving the imaging head along a vertical dimension, and a rotary stage to rotate the linear stage and imaging head about the vertical dimension. A mounting arm couples the imaging head to the linear stage to adjust tilt of the imaging head and to rotate the imaging head about a normal axis perpendicular to an optical axis of an objective lens of the imaging head. In a first mode of operation, the imaging head is positioned to image an ex-vivo or in-vivo tissue sample upon the platform, such as ex-vivo tissue sample mounted upon a movable specimen stage, and in a second mode of operation the imaging head is positioned to image an in-vivo tissue sample beside the platform.Type: GrantFiled: March 1, 2021Date of Patent: October 24, 2023Assignee: CALIBER IMAGING & DIAGNOSTICS, INC.Inventors: Allison L. Cramb, Christopher C. Distasio, William J. Fox, Steven Ridge, Simon C. Watkins
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Patent number: 11762417Abstract: An optical film includes a rough surface having multiple measuring points constituting multiple virtual measuring planes in a given unit measuring area. A normal to each virtual measuring plane has an angle with a normal to a reference plane. On the reference plane, the projection area of the virtual measuring planes having the angle larger than 20 degrees ranges from 31% to 60% of the projection area of the given unit measuring area. The projection area of the virtual measuring planes having the angle larger than 50 degrees is less than 7% of the projection area of the given unit measuring area. 25% of the measuring points has the height larger than a first height. 75% of the measuring points has the height larger than a second height. The first height and the second height have a difference not less than 0.6 ?m and not larger than 2.5 ?m.Type: GrantFiled: November 6, 2020Date of Patent: September 19, 2023Assignee: AU OPTRONICS CORPORATIONInventors: Shu-Cheng Kung, Ken-Yu Liu, Kuan-Yu Tung
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Patent number: 11754808Abstract: There is provided a compact imaging lens configured to properly correct aberrations. The imaging lens includes, in order from an object side to an image side, a first lens L1 with positive refractive power, a second lens L2 with negative refractive power, a third lens L3 with positive refractive power, a fourth lens L4 with negative refractive power, a fifth lens L5, a sixth lens L6, a seventh lens L7 with positive refractive power, and an eighth lens L8 with negative refractive power. The fourth lens is formed in a shape of a meniscus lens having an object-side surface being concave in a paraxial region. The eighth lens L8 has an aspheric image-side surface having at least one inflection point. Furthermore, the following conditional expression is satisfied: 0.04<D34/f<0.15 where f: a focal length of the overall optical system of the imaging lens, and D34: a distance along the optical axis between the third lens and the fourth lens.Type: GrantFiled: June 5, 2020Date of Patent: September 12, 2023Assignee: TOKYO VISIONARY OPTICS CO., LTD.Inventor: Hitoshi Hirano
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Patent number: 11754815Abstract: There is provided a compact imaging lens configured to properly correct aberrations. The imaging lens includes, in order from an object side to an image side, a first lens L1 with positive refractive power, a second lens L2 with negative refractive power, a third lens L3 with positive refractive power, a fourth lens L4 with negative refractive power, a fifth lens L5, a sixth lens L6, a seventh lens L7 with positive refractive power, and an eighth lens L8 with negative refractive power. The fourth lens is formed in a shape of a meniscus lens having an object-side surface being concave in a paraxial region. The eighth lens L8 has an aspheric image-side surface having at least one inflection point. Furthermore, the following conditional expression is satisfied: 0.04<D34/f<0.15 where f: a focal length of the overall optical system of the imaging lens, and D34: a distance along the optical axis between the third lens and the fourth lens.Type: GrantFiled: August 2, 2021Date of Patent: September 12, 2023Assignee: TOKYO VISIONARY OPTICS CO., LTD.Inventor: Hitoshi Hirano
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Patent number: 11747639Abstract: The present disclosure relates to a waveplate having a substrate forming an optic. The substrate may have an integral portion forming a plurality of angled columnar features on an exposed surface thereof. The plurality of angled columnar features may further be aligned parallel with a directional plane formed non-parallel to a reference plane, with the reference plane being normal to a surface of the substrate. The metasurface forms a birefringent metasurface.Type: GrantFiled: July 22, 2019Date of Patent: September 5, 2023Assignee: Lawrence Livermore National Security, LLCInventors: Eyal Feigenbaum, Jeffrey D. Bude, Jean-Michel Di Nicola, Hoang T. Nguyen, Christopher J. Stolz
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Patent number: 11733484Abstract: The present disclosure provides an optical imaging lens assembly and an electronic device. The optical imaging lens assembly includes, sequentially from an object side to an image side along an optical axis, a window member; a first lens having a positive refractive power, and an object-side surface of the first lens being a convex surface; a second lens having a negative refractive power; and at least one subsequent lens having a refractive power, wherein an entrance pupil diameter EPD of the optical imaging lens assembly and half of an effective aperture DTg of the window member at an object-side surface thereof satisfy: EPD/DTg>1.6, which makes the optical imaging lens assembly have the characteristics of high resolution and miniaturization. When the optical imaging lens assembly is installed on an electronic device, it can minimize the impact on the full-screen display.Type: GrantFiled: June 18, 2020Date of Patent: August 22, 2023Assignee: Zhejiang Sunny Optical Co., LtdInventors: Mengna Tang, Saifeng Lyu, Ling Ding, Fujian Dai, Liefeng Zhao
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Patent number: 11723420Abstract: A protective lens stack comprises a base layer including a polyethylene terephthalate (PET) film containing a UV blocking additive and one or more removable lens layers stacked on top of the base layer. Each of the removable lens layers may include a PET film and a first adhesive disposed on a bottom surface of the PET film. Refractive indices of the base layer and the one or more removable lens layers may be matched to within 0.2. Each layer of the protective lens stack, including the base layer and each of the removable lens layer(s), may have less than 0.5% haze. The protective lens stack may be used as a face shield or may be surface mountable using a second adhesive disposed on a bottom surface of the PET film containing the UV blocking additive.Type: GrantFiled: October 5, 2022Date of Patent: August 15, 2023Assignee: Racing Optics, Inc.Inventors: Stephen S. Wilson, Bart E. Wilson
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Patent number: 11726247Abstract: There is provided a display device exhibiting a good color reproducibility, even when observed through polarized sunglasses. A display device comprises a polarizer a and an optical film X on a surface on a light emitting surface side of a display element, wherein L1, which is the light incident vertically on the optical film X, among light incident on the optical film X from the display element side, satisfies a specific condition, and L2, which is the light emitting vertically from the light emitting surface side of the optical film X, and passing through a polarizer b having the absorption axis parallel to the absorption axis of the polarizer a, satisfies a specific condition.Type: GrantFiled: September 17, 2020Date of Patent: August 15, 2023Assignees: DAI NIPPON PRINTING CO., LTD.Inventors: Takashi Kuroda, Yasuhiro Koike
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Patent number: 11709298Abstract: An optical filter includes: an absorption layer including a first near-infrared absorbing dye (D1), a second near-infrared absorbing dye (D2), and a transparent resin; and a reflection layer including a dielectric multilayer film. The dye (D1) and the dye (D2) are squarylium compounds satisfying following (1) to (3). (1) The dye (D1) has a maximum absorption wavelength ?max(D1) within a range of 680 to 730 nm, and the difference between a wavelength at which a transmittance is 80% on the shorter wavelength side than ?max(D1) when the concentration is adjusted such that a transmittance at ?max(D1) is 10%, and ?max(D1) is 100 nm or less. (2) The dye (D2) has a maximum absorption wavelength ?max(D2) within a range of 720 to 770 nm. (3) A value obtained by subtracting ?max(D1) from ?max(D2) is 30 nm or more and 85 nm or less.Type: GrantFiled: March 4, 2020Date of Patent: July 25, 2023Assignee: AGC Inc.Inventors: Kazuhiko Shiono, Nanako Nishimoto, Sayuri Yamada, Hiroki Hotaka, Satoshi Okada, Keigo Matsuura
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Patent number: 11703673Abstract: A compact microscope including an enclosure, a support element, a primary optical support element located within the enclosure and supported by the support element, at least one vibration isolating mount between the support element and the primary optical support element, a sample stage supported on the primary optical support element to support a sample, a return optical system to receive returned light from a sample and transmit returned light to a detection apparatus, wherein the return optical system is mounted on the primary optical support element, and wherein the compact microscope include a at least one of the following elements; a) an objective lens system, b) a temperature-control system, and c) the return optical system being operable to separate returned light into at least a first wavelength band and a second wavelength band.Type: GrantFiled: October 20, 2020Date of Patent: July 18, 2023Assignee: OXFORD UNIVERSITY INNOVATION LIMITEDInventors: Achillefs Kapanidis, Bo Jing
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Patent number: 11675116Abstract: Provided is a near-infrared cut-off filter having excellent oblique incidence characteristics due to extremely low dependence on the angle of incidence, and a low transmittance in a wavelength region of 1000 nm or more. More particularly, the near-infrared cut-off filter includes a transparent substrate that is formed of glass containing iron atoms and has a half-value wavelength of greater than 630 nm on a long wavelength side of a transmittance curve and an average transmittance of 1% or less in a wavelength region of 1000 to 1200 nm; and a resin layer formed on at least one main surface of the transparent substrate to absorb light of a specific wavelength.Type: GrantFiled: December 2, 2020Date of Patent: June 13, 2023Assignee: HOYA CORPORATIONInventor: Takeshi Yamazaki
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Patent number: 11656395Abstract: An optical device includes a first polarization selective reflector; a second polarization selective reflector positioned relative to the first polarization selective reflector so that the first polarization selective reflector directs first light toward the second polarization selective reflector and the second polarization selective reflector directs at least a portion of the first light toward the first polarization selective reflector as second light. The optical device includes a first reflector positioned relative to the first polarization selective reflector so that the first polarization selective reflector directs at least a portion of the second light received from the second polarization selective reflector toward the first reflector as third light and the first reflector directs at least a portion of third light toward the first polarization selective reflector.Type: GrantFiled: May 14, 2020Date of Patent: May 23, 2023Assignee: META PLATFORMS TECHNOLOGIES, LLCInventors: Andrew John Ouderkirk, Tanya Malhotra, Weichuan Gao, Ying Geng
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Patent number: 11650420Abstract: A head-up display including a light source module, a spatial light modulator, an imaging screen group and a control unit is provided. The light source module is configured to project a light beam. The spatial light modulator is configured to modulate the light beam as a first image and a second image and project respective image lights of the first and second images. The imaging screen group is configured to reflect the image lights of the first and second images to the visible range of the user, such that the user can view the first and second images. The control unit is coupled to the spatial light modulator to input at least two modulation signals to control the beam-splitting mechanism of the spatial light modulator.Type: GrantFiled: November 17, 2020Date of Patent: May 16, 2023Assignees: LITE-ON ELECTRONICS (GUANGZHOU) LIMITED, LITE-ON TECHNOLOGY CORPORATIONInventors: Yu-Chih Lin, Ming-Ping Lai
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Patent number: 11630252Abstract: An optical filter (1a) includes a light-absorbing layer (10). The light-absorbing layer absorbs light in at least a portion of the near-infrared region. When light with a wavelength of 300 nm to 1200 nm is incident on the optical filter (1a) at incident angles of 0°, 30°, and 40°, the optical filter (1a) satisfies given transmittance requirements. Nine differences each obtained as a difference between one and another of IE?xR, IE?yG, and IE?zB defined for incident angles ?° of 0°, 30°, and 40° satisfy given requirements, and ranges satisfy given requirements, each range being a difference obtained by subtracting the smallest value of three differences from the largest value of the three differences, the three differences obtained from IE?xR, IE?yG, and IE?zB collectively defined for the same pair selected from the incident angles ?°.Type: GrantFiled: September 19, 2018Date of Patent: April 18, 2023Assignee: NIPPON SHEET GLASS COMPANY, LIMITEDInventors: Tomitaka Takagi, Katsuhide Shimmo
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Patent number: 11630291Abstract: A method of fabricating an optical assembly includes providing a first mold having a first curved mold surface; placing a substantially flat reflective polarizer; on the first curved mold surface and applying at least one of pressure and heat to at least partially conform the reflective polarizer to the first curved mold surface; providing a second mold comprising a second mold surface, the first and second mold surfaces defining a mold cavity therebetween; substantially filling the mold cavity with a flowable material having a temperature greater than a glass transition temperature of the reflective polarizer; and solidifying the flowable material to form a solid optical element bonded to the reflective polarizer. A maximum variation of an orientation of a pass polarization state across the bonded reflective polarizer is within about 3 degrees of a maximum variation of the orientation of the pass polarization state across the substantially flat reflective polarizer.Type: GrantFiled: January 25, 2022Date of Patent: April 18, 2023Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Jo A. Etter, Timothy L. Wong, Zhisheng Yun, Gregg A. Ambur, Benjamin G. Sonnek, Robert M. Jennings
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Patent number: 11619770Abstract: A zoned waveplate has a series of transversely stacked birefringent zones alternating with non-birefringent zones. The birefringent and non-birefringent zones are integrally formed upon an AR-coated face of a single substrate by patterning the AR coated face of the substrate with zero-order sub-wavelength form-birefringent gratings configured to have a target retardance. The layer structure of the AR coating is designed to provide the target birefringence in the patterned zones and the reflection suppression.Type: GrantFiled: October 7, 2019Date of Patent: April 4, 2023Assignee: Lumentum Operations LLCInventors: John Michael Miller, Joel Milgram, Karen Denise Hendrix, Michael O'Leary, Hery Djie, Lu Tian, Paul Colbourne
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Patent number: 11604350Abstract: An optical system and, specifically an HMD, is disclosed for increasing brightness efficiency of light transmitted from a display. By including one polarization selective mirror between a half mirror and a display and another polarization selective mirror between the half mirror and a lens, brightness efficiency is increased without a substantial increase in thickness.Type: GrantFiled: February 28, 2020Date of Patent: March 14, 2023Assignee: SHARP KABUSHIKI KAISHAInventors: William Frederick Smith, David James Montgomery