Patents Examined by George G King
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Patent number: 11719918Abstract: The present disclosure discloses a zoom lens assembly including, sequentially from an object side to an image side along an optical axis, a first lens group having refractive power; a second lens group having negative refractive power; a third lens group having refractive power; and a fourth lens group having refractive power. The zoom lens assembly may be continuously zoomed by changing positions of the second lens group and the third lens group along the optical axis. A total effective focal length ft of the zoom lens assembly in a telephoto state, and a total effective focal length fw of the zoom lens assembly in a wide-angle state satisfy: 1.3<ft/fw<3.3.Type: GrantFiled: July 14, 2021Date of Patent: August 8, 2023Assignee: Zhejiang Sunny Optics Co., Ltd.Inventors: Fujian Dai, Wuchao Xu, Qi Wu, Liefeng Zhao
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Patent number: 11719916Abstract: An optical imaging lens may include a first, a second, a third, a fourth, a fifth, and a sixth lens elements positioned in an order from an object side to an image side. Through designing concave and/or convex surfaces of the six lens elements, the improved optical imaging lens may provide better imaging quality while the length of the lens may be shortened, the F-number may be reduced, and the field of view may be extended.Type: GrantFiled: September 28, 2020Date of Patent: August 8, 2023Assignee: Genius Electronic Optical (Xiamen) Co., Ltd.Inventors: Lanlan Zhang, Xinming Liu, Hai Lin, Chuanbo Dong, Hung-Chien Hsieh
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Patent number: 11714260Abstract: An optical system includes, in order from an object side to an image side, a front unit having a positive refractive power and including one or more lens units configured to move during focusing, and a negative lens unit having a negative refractive power. The one or more lens units included in the front unit moves to the object side during focusing from infinity to a short distance so as to widen a distance between the front unit and the negative lens unit. The front unit includes a first subunit having a negative refractive power and including a lens disposed on the object side of a first positive lens that is one of positive lenses included in the optical system, which is the closest to an object. A predetermined condition is satisfied.Type: GrantFiled: July 9, 2021Date of Patent: August 1, 2023Assignee: CANON KABUSHIKI KAISHAInventor: Yuki Shinzato
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Patent number: 11714264Abstract: A photographing system includes, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element and a seventh lens element with refractive power. The first lens element with positive refractive power has an object-side surface being convex in paraxial region. The second lens element with refractive power has an image-side surface being concave in paraxial region. The third, fourth and fifth lens elements all have refractive powers. The sixth lens element with refractive power has an image-side surface being concave in paraxial region, wherein the image-side surface has at least one convex shape in off-axis region, and both of two surfaces are aspheric. The seventh lens element with refractive power has an object-side surface being concave in paraxial region, and both of two surfaces are aspheric.Type: GrantFiled: January 19, 2021Date of Patent: August 1, 2023Assignee: LARGAN PRECISION CO., LTD.Inventor: Wei-Yu Chen
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Patent number: 11703664Abstract: The present invention provides a camera lens which is constituted by six lenses and has a narrow angle and good optical characteristics when shooting and a low height when retracted. The camera lens, includes, from an object side, a first lens having a positive refractive power; a second lens a having negative refractive power; a third lens having a positive refractive power; a fourth lens having a negative refractive power; a fifth lens having a negative refractive power; and a sixth lens having a positive refractive power, and satisfies given relational formulas.Type: GrantFiled: November 11, 2020Date of Patent: July 18, 2023Assignee: AAC Optics Solutions Pte. Ltd.Inventor: Hiroyuki Teraoka
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Patent number: 11703675Abstract: The present application provides a display panel and a manufacturing method of the display panel. When an electrochromic layer is completely closed, a metasurface structure and an electrowetting structure reflect a light with corresponding wavelength to form a reflection state. When the electrochromic layer is partially closed, the metasurface structure and the electrowetting structure corresponding to a part of the closed electrochromic layer reflect the light with corresponding wavelength to form the reflection state, and the light penetrates through the wetted metasurface structure and a part of the unclosed electrochromic layer to form a transparent state.Type: GrantFiled: June 2, 2020Date of Patent: July 18, 2023Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Yanan Wang
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Patent number: 11703620Abstract: A lens for protective gear has first and second polymer layers with a glass layer therebetween. The glass layer is fused to the first and second polymer layers and encapsulated by the first and second polymer layers with the glass layer in compression. The lens may have a coating that provides the lens with (i) less than about 5 percent transmittance for light having wavelengths of less than 400 nm and greater than about 700 nm for an entire horizontal field of view of the lens, (ii) greater than 75 percent transmittance of light having wavelengths of between about 400 nm and about 700 nm for the entire horizontal field of view of the lens with less than about 5 percent transmittance of light having wavelength between about 530 nm and about 580 nm for a horizontal field of view of the lens of not greater than 60 degrees.Type: GrantFiled: November 23, 2020Date of Patent: July 18, 2023Assignee: RAYOTEK SCIENTIFIC, INC.Inventor: William Raggio
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Patent number: 11686944Abstract: A method and system for increasing dynamic digitized wavefront resolution, i.e., the density of output beamlets, can include receiving a single collimated source light beam and producing multiple output beamlets spatially offset when out-coupled from a waveguide. The multiple output beamlets can be obtained by offsetting and replicating a collimated source light beam. Alternatively, the multiple output beamlets can be obtained by using a collimated incoming source light beam having multiple input beams with different wavelengths in the vicinity of the nominal wavelength of a particular color. The collimated incoming source light beam can be in-coupled into the eyepiece designed for the nominal wavelength. The input beams with multiple wavelengths take different paths when they undergo total internal reflection in the waveguide, which produces multiple output beamlets.Type: GrantFiled: April 28, 2020Date of Patent: June 27, 2023Assignee: Magic Leap, Inc.Inventors: Lionel Ernest Edwin, Ivan Li Chuen Yeoh, Brian T. Schowengerdt, Kevin Richard Curtis, William Hudson Welch, Pierre St. Hilaire, Hui-Chuan Cheng
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Patent number: 11675243Abstract: An apparatus can include an electrochromic device. When using the apparatus, the electrochromic device can be switched from a first transmission state to a continuously graded state and maintained at continuously graded transmission state. An apparatus can include an active stack with a first transparent conductive layer, a second transparent conductive layer, an anodic electrochemical layer between the first and the second transparent conductive layers, and a cathodic electrochemical layer between the first and the second transparent conductive layers. The apparatus can further include a first bus bar electrically coupled to the first transparent conductive layer, a second bus bar electrically coupled to the second transparent conductive layer, where the second bus bar is generally non-parallel to the first bus bar, and a third bus bar electrically coupled to the first transparent conductive layer, where the third bus bar is generally parallel to the first bus bar.Type: GrantFiled: July 1, 2022Date of Patent: June 13, 2023Assignee: SAGE ELECTROCHROMICS, INC.Inventors: Yigang Wang, Jean-Christophe Giron, Bryan D. Greer
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Patent number: 11675162Abstract: There is provided an imaging lens with high resolution which satisfies in well balance the low-profileness and the low F-number and properly corrects aberrations. An imaging lens comprises a first lens having positive refractive power, a second lens having the positive refractive power, a third lens, a fourth lens, a fifth lens being a double-sided aspheric lens, and a sixth lens being double-sided aspheric lens and having a concave surface facing the image side near the optical axis, wherein the image-side surface of the sixth lens is an aspheric surface changing to the convex surface at a peripheral area.Type: GrantFiled: June 8, 2020Date of Patent: June 13, 2023Assignee: TOKYO VISIONARY OPTICS CO., LTD.Inventors: Koji Nitta, Yukio Sekine, Masaya Hashimoto
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Patent number: 11644730Abstract: An electrochromic device including an electrode layer, an electrochromic layer and a conductive band having a closed ring shape. The electrochromic device having the above structure has excellent color-switching speeds and electrochromic uniformity.Type: GrantFiled: April 23, 2018Date of Patent: May 9, 2023Assignee: LG CHEM, LTD.Inventors: Yong Chan Kim, Ki Hwan Kim, Pil Sung Jo
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Patent number: 11640060Abstract: A head-mounted display includes an image display device including a panel unit serving as a display element configured to display an image, a colored optical member disposed on a light path of imaging light emitted from the panel unit and having a yellowness of a predetermined value or greater, and a coloring correction optical member configured to correct a degree of coloring of the imaging light of the entire light path in accordance with the yellowness of the colored optical member.Type: GrantFiled: October 27, 2020Date of Patent: May 2, 2023Assignee: SEIKO EPSON CORPORATIONInventors: Tokito Yamaguchi, Masayuki Takagi, Toshiaki Miyao, Akira Komatsu, Takashi Takeda
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Patent number: 11635602Abstract: A zoom lens includes a first lens unit having negative refractive power, a second lens unit having positive refractive power, an intermediate unit including one or more lens units, and a final lens unit having positive refractive power disposed closest to the image side. The first lens unit includes negative lenses G1, G2 and G3 disposed in this order from an object side to an image side. The final lens unit includes at least one negative lens and a positive lens disposed closest to the image side. The zoom lens satisfies predetermined inequalities.Type: GrantFiled: May 20, 2020Date of Patent: April 25, 2023Assignee: CANON KABUSHIKI KAISHAInventor: Shinya Okuoka
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Patent number: 11635600Abstract: A vehicle projection lens includes a plastic aspheric first lens, an aperture stop, a cemented lens consisting of a glass second lens and a glass third lens, and a glass fourth lens arranged in order from a magnified side to a minified side. An F-number of the vehicle projection lens is smaller than or equal to 0.8, and the vehicle projection lens consists essentially of four lenses respectively with positive, positive, negative and positive refractive powers.Type: GrantFiled: September 9, 2021Date of Patent: April 25, 2023Assignee: YOUNG OPTICS INC.Inventors: Chen-An Chiang, S-Wei Chen
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Patent number: 11630294Abstract: A surgical microscope for visualizing a tissue region contains an illumination device with a light source and an illumination beam path for illuminating an object region with an object plane and an observation device having an observation beam path for imaging the object region with the object plane into an observation plane. A first polarizer can be coupled into the illumination beam path and is suitable for polarizing the illumination light in a first orientation. A polarizer, which can be coupled into the observation beam path, has a second orientation at an angle between 80° and 100° relative to the first orientation. In a first mode, the light source emits illumination light in a first wavelength range between 450 nm and 550 nm, the first polarizer is coupled into the illumination beam path, and the second polarizer is coupled into the observation beam path.Type: GrantFiled: February 14, 2019Date of Patent: April 18, 2023Assignee: Carl Zeiss Meditec AGInventor: Carl Kuebler
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Patent number: 11630364Abstract: An EC element whose coloring unevenness due to concentration unevenness is reduced by bringing the ratio of red and green wavelength ranges of a colored form of an anodic EC compound close to the ratio of red and green wavelength ranges of a colored form of a cathodic EC compound.Type: GrantFiled: July 8, 2020Date of Patent: April 18, 2023Assignee: Canon Kabushiki KaishaInventor: Wataru Kubo
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Patent number: 11630365Abstract: An electrochromic element including: a laminated body including a support formed of a resin, a first electrode layer, an electrochromic layer, and a second electrode layer, the support, the first electrode layer, the electrochromic layer, and the second electrode layer being disposed in the laminated body in this order; and a gel electrolyte disposed between the first electrode layer and the second electrode layer, wherein a phase separation temperature of the gel electrolyte is higher than a softening point of the support.Type: GrantFiled: November 27, 2020Date of Patent: April 18, 2023Assignee: RICOH COMPANY, LTD.Inventors: Keiichiroh Yutani, Fuminari Kaneko, Yuto Matsuoka, Kayato Ohya, Tohru Yashiro, Tomoo Fukuda, Takashi Tsutsui
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Patent number: 11624962Abstract: An electro-optic element includes a first electroactive compartment including an electroactive film having a first electroactive component and a second electroactive compartment including an electroactive solution or gel having a second electroactive component. An ion selective material is disposed between the first and second electroactive compartments and is configured to inhibit diffusion of the second electroactive component in an activated state from the second electroactive compartment to the first electroactive compartment. At least one of the first and second electroactive components is electrochromic such that the electro-optic element is configured to reversibly attenuate transmittance of light having a wavelength within a predetermined wavelength range when an electrical potential is applied to the electro-optic element.Type: GrantFiled: September 29, 2020Date of Patent: April 11, 2023Assignee: GENTEX CORPORATIONInventor: Leroy J. Kloeppner
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Patent number: 11619817Abstract: A head-mounted display includes a pancake lens block. The pancake lens block includes a first waveplate to form first nonlinearly polarized light, a Fresnel surface to reflect and transmit a portion of the first nonlinearly polarized light, a second waveplate to form first linearly polarized light, and a linear reflective polarizer to transmit linear polarized light of a particular polarization rotation direction and to reflect light of other polarization rotation directions.Type: GrantFiled: November 23, 2020Date of Patent: April 4, 2023Assignee: Meta Platforms Technologies, LLCInventors: Jacques Gollier, Ying Geng, Brian Wheelwright, Andrew John Ouderkirk
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Patent number: 11614638Abstract: A distortion profile is based on user lens data and a selected optical-mechanical profile of a selected head mounted device. The user lens data is associated with prescription lenses worn by the user. A prescription optical layer is fabricated based on the distortion profile for the selected head mounted device.Type: GrantFiled: January 15, 2020Date of Patent: March 28, 2023Assignee: Meta Platforms Technologies, LLCInventors: Robin Sharma, Mohamed Tarek El-Haddad, Ruobing Qian, Byron Taylor