US Patent Application 18341562. Optical System for Head-Mounted Display simplified abstract

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Optical System for Head-Mounted Display

Organization Name

Apple Inc.


Inventor(s)

Sajjad A. Khan of Santa Clara CA (US)


Nan Zhu of San Jose CA (US)


Graham B. Myhre of Campbell CA (US)


Brent J. Bollman of Alameda CA (US)


Tyler Anderson of Sunnyvale CA (US)


Weibo Cheng of Santa Clara CA (US)


John N. Border of Campbell CA (US)


Optical System for Head-Mounted Display - A simplified explanation of the abstract

  • This abstract for appeared for US patent application number 18341562 Titled 'Optical System for Head-Mounted Display'

Simplified Explanation

The abstract describes a head-mounted display that consists of a display system and an optical system housed together. The display system includes a pixel array that produces light for images, a linear polarizer, and a quarter wave plate. The optical system is a catadioptric system with lens elements, including a plano-convex lens and a plano-concave lens. A partially reflective mirror is located on the convex surface of the plano-convex lens, and a reflective polarizer is on either the planar surface of the plano-convex lens or the concave surface of the plano-concave lens. An additional quarter wave plate is positioned between the reflective polarizer and the partially reflective mirror.


Original Abstract Submitted

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.