Patents by Inventor Weibo Cheng
Weibo Cheng has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230333359Abstract: A head-mounted display may include a display system and an optical system in a housing. The display system may have a pixel array that produces light associated with images. The display system may also have a linear polarizer through which light from the pixel array passes and a quarter wave plate through which the light passes after passing through the quarter wave plate. The optical system may be a catadioptric optical system having one or more lens elements. The lens elements may include a plano-convex lens and a plano-concave lens. A partially reflective minor may be formed on a convex surface of the plano-convex lens. A reflective polarizer may be formed on the planar surface of the plano-convex lens or the concave surface of the plano-concave lens. An additional quarter wave plate may be located between the reflective polarizer and the partially reflective mirror.Type: ApplicationFiled: June 26, 2023Publication date: October 19, 2023Inventors: Sajjad A. Khan, Nan Zhu, Graham B. Myhre, Brent J. Bollman, Tyler Anderson, Weibo Cheng, John N. Border
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Patent number: 11740446Abstract: A head-mounted display may include a display system and an optical system in a housing. The display system may have a pixel array that produces light associated with images. The display system may also have a linear polarizer through which light from the pixel array passes and a quarter wave plate through which the light passes after passing through the quarter wave plate. The optical system may be a catadioptric optical system having one or more lens elements. The lens elements may include a plano-convex lens and a plano-concave lens. A partially reflective mirror may be formed on a convex surface of the plano-convex lens. A reflective polarizer may be formed on the planar surface of the plano-convex lens or the concave surface of the plano-concave lens. An additional quarter wave plate may be located between the reflective polarizer and the partially reflective mirror.Type: GrantFiled: January 15, 2021Date of Patent: August 29, 2023Assignee: Apple Inc.Inventors: Sajjad A. Khan, Nan Zhu, Graham B. Myhre, Brent J. Bollman, Tyler Anderson, Weibo Cheng, John N. Border
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Publication number: 20210132349Abstract: A head-mounted display may include a display system and an optical system in a housing. The display system may have a pixel array that produces light associated with images. The display system may also have a linear polarizer through which light from the pixel array passes and a quarter wave plate through which the light passes after passing through the quarter wave plate. The optical system may be a catadioptric optical system having one or more lens elements. The lens elements may include a plano-convex lens and a plano-concave lens. A partially reflective mirror may be formed on a convex surface of the plano-convex lens. A reflective polarizer may be formed on the planar surface of the plano-convex lens or the concave surface of the plano-concave lens. An additional quarter wave plate may be located between the reflective polarizer and the partially reflective mirror.Type: ApplicationFiled: January 15, 2021Publication date: May 6, 2021Inventors: Sajjad A. Khan, Nan Zhu, Graham B. Myhre, Brent J. Bollman, Tyler Anderson, Weibo Cheng, John N. Border
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Patent number: 10928613Abstract: A head-mounted display may include a display system and an optical system in a housing. The display system may have a pixel array that produces light associated with images. The display system may also have a linear polarizer through which light from the pixel array passes and a quarter wave plate through which the light passes after passing through the quarter wave plate. The optical system may be a catadioptric optical system having one or more lens elements. The lens elements may include a plano-convex lens and a plano-concave lens. A partially reflective mirror may be formed on a convex surface of the plano-convex lens. A reflective polarizer may be formed on the planar surface of the plano-convex lens or the concave surface of the plano-concave lens. An additional quarter wave plate may be located between the reflective polarizer and the partially reflective mirror.Type: GrantFiled: January 30, 2020Date of Patent: February 23, 2021Assignee: Apple Inc.Inventors: Sajjad A. Khan, Nan Zhu, Graham B. Myhre, Brent J. Bollman, Tyler Anderson, Weibo Cheng, John N. Border
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Publication number: 20200166738Abstract: A head-mounted display may include a display system and an optical system in a housing. The display system may have a pixel array that produces light associated with images. The display system may also have a linear polarizer through which light from the pixel array passes and a quarter wave plate through which the light passes after passing through the quarter wave plate. The optical system may be a catadioptric optical system having one or more lens elements. The lens elements may include a plano-convex lens and a plano-concave lens. A partially reflective mirror may be formed on a convex surface of the plano-convex lens. A reflective polarizer may be formed on the planar surface of the plano-convex lens or the concave surface of the plano-concave lens. An additional quarter wave plate may be located between the reflective polarizer and the partially reflective mirror.Type: ApplicationFiled: January 30, 2020Publication date: May 28, 2020Inventors: Sajjad A. Khan, Nan Zhu, Graham B. Myhre, Brent J. Bollman, Tyler Anderson, Weibo Cheng, John N. Border
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Patent number: 10591707Abstract: A head-mounted display may include a display system and an optical system in a housing. The display system may have a pixel array that produces light associated with images. The display system may also have a linear polarizer through which light from the pixel array passes and a quarter wave plate through which the light passes after passing through the quarter wave plate. The optical system may be a catadioptric optical system having one or more lens elements. The lens elements may include a plano-convex lens and a plano-concave lens. A partially reflective mirror may be formed on a convex surface of the plano-convex lens. A reflective polarizer may be formed on the planar surface of the plano-convex lens or the concave surface of the plano-concave lens. An additional quarter wave plate may be located between the reflective polarizer and the partially reflective mirror.Type: GrantFiled: December 18, 2018Date of Patent: March 17, 2020Assignee: Apple Inc.Inventors: Sajjad A. Khan, Nan Zhu, Graham B. Myhre, Brent J. Bollman, Tyler Anderson, Weibo Cheng, John N. Border
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Patent number: 10300557Abstract: A hybrid laser modulation and acid etch process for the creation of a patterned substrate. According to some embodiments, a hole is formed in a glass substrate by first modulating a portion of the substrate in the desired shape. A mask is coated on the glass substrate and is patterned to expose the modulated portion. The glass substrate is then acid etched to remove the modulated portion. Once the modulated portion has been etched, the desired shape may be removed from the glass substrate and the mask may be stripped.Type: GrantFiled: September 22, 2017Date of Patent: May 28, 2019Assignee: Apple Inc.Inventors: Nathan K. Gupta, Simon R. Lancaster-Larocque, Prithu Sharma, Weibo Cheng, Abhijit A. Kangude, Bryan W. Posner, Sudirukkuge T. Jinasundera, Karan Bir
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Publication number: 20190146198Abstract: A head-mounted display may include a display system and an optical system in a housing. The display system may have a pixel array that produces light associated with images. The display system may also have a linear polarizer through which light from the pixel array passes and a quarter wave plate through which the light passes after passing through the quarter wave plate. The optical system may be a catadioptric optical system having one or more lens elements. The lens elements may include a plano-convex lens and a plano-concave lens. A partially reflective mirror may be formed on a convex surface of the plano-convex lens. A reflective polarizer may be formed on the planar surface of the plano-convex lens or the concave surface of the plano-concave lens. An additional quarter wave plate may be located between the reflective polarizer and the partially reflective mirror.Type: ApplicationFiled: December 18, 2018Publication date: May 16, 2019Inventors: Sajjad A. Khan, Nan Zhu, Graham B. Myhre, Brent J. Bollman, Tyler Anderson, Weibo Cheng, John N. Border
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Patent number: 10203489Abstract: A head-mounted display may include a display system and an optical system in a housing. The display system may have a pixel array that produces light associated with images. The display system may also have a linear polarizer through which light from the pixel array passes and a quarter wave plate through which the light passes after passing through the quarter wave plate. The optical system may be a catadioptric optical system having one or more lens elements. The lens elements may include a plano-convex lens and a plano-concave lens. A partially reflective mirror may be formed on a convex surface of the plano-convex lens. A reflective polarizer may be formed on the planar surface of the plano-convex lens or the concave surface of the plano-concave lens. An additional quarter wave plate may be located between the reflective polarizer and the partially reflective mirror.Type: GrantFiled: February 16, 2017Date of Patent: February 12, 2019Assignee: Apple Inc.Inventors: Sajjad A. Khan, Nan Zhu, Graham B. Myhre, Brent J. Bollman, Tyler Anderson, Weibo Cheng, John N. Border
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Publication number: 20180315357Abstract: An electronic device may be provided with a display. The display may have a display cover layer. The display may have an active area with pixels and an inactive area with dummy pixels. The dummy pixels may have structures that are optically matched to the pixels so that the dummy pixels and pixels have similar visual appearances when the display is off. An optical window may be formed in the inactive area. A light-based component such as an ambient light sensor, proximity sensor, or image sensor may be mounted in the electronic device in alignment with the optical window. A polarizer layer may overlap the active and inactive areas of the display. An opening in the polarizer or a bleached unpolarized portion of the polarizer may be aligned with the optical window.Type: ApplicationFiled: January 29, 2018Publication date: November 1, 2018Inventors: Donghee Nam, Bhadrinarayana Lalgudi Visweswaran, Cheng Chen, Meng-Huan Ho, Nathan K. Gupta, Rui Liu, Sebastian Knitter, Sudirukkuge T. Jinasundera, Tsung-Ting Tsai, Weibo Cheng
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Publication number: 20180085857Abstract: A hybrid laser modulation and acid etch process for the creation of a patterned substrate. According to some embodiments, a hole is formed in a glass substrate by first modulating a portion of the substrate in the desired shape. A mask is coated on the glass substrate and is patterned to expose the modulated portion. The glass substrate is then acid etched to remove the modulated portion. Once the modulated portion has been etched, the desired shape may be removed from the glass substrate and the mask may be stripped.Type: ApplicationFiled: September 22, 2017Publication date: March 29, 2018Applicant: Apple Inc.Inventors: Nathan K. Gupta, Simon R. Lancaster-Larocque, Prithu Sharma, Weibo Cheng, Abhijit A. Kangude, Bryan W. Posner, Sudirukkuge T. Jinasundera, Karan Bir
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Publication number: 20180039052Abstract: A head-mounted display may include a display system and an optical system in a housing. The display system may have a pixel array that produces light associated with images. The display system may also have a linear polarizer through which light from the pixel array passes and a quarter wave plate through which the light passes after passing through the quarter wave plate. The optical system may be a catadioptric optical system having one or more lens elements. The lens elements may include a plano-convex lens and a plano-concave lens. A partially reflective mirror may be formed on a convex surface of the plano-convex lens. A reflective polarizer may be formed on the planar surface of the plano-convex lens or the concave surface of the plano-concave lens. An additional quarter wave plate may be located between the reflective polarizer and the partially reflective mirror.Type: ApplicationFiled: February 16, 2017Publication date: February 8, 2018Inventors: Sajjad A. Khan, Nan Zhu, Graham B. Myhre, Brent J. Bollman, Tyler Anderson, Weibo Cheng, John N. Border