18541279. Electronic Device with a Lens Module simplified abstract (Apple Inc.)

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Electronic Device with a Lens Module

Organization Name

Apple Inc.

Inventor(s)

Ran He of Cupertino CA (US)

Francois R. Jacob of Sunnyvale CA (US)

Zachary A. Granger of Redwood City CA (US)

Brent J. Bollman of Alameda CA (US)

Electronic Device with a Lens Module - A simplified explanation of the abstract

This abstract first appeared for US patent application 18541279 titled 'Electronic Device with a Lens Module

Simplified Explanation

The abstract describes a head-mounted display with a catadioptric optical system including a quarter wave plate and reflective polarizer. A circular reflective polarizer with cholesteric liquid crystal layer may also be used.

  • Catadioptric optical system with one or more lens elements
  • Quarter wave plate coated to first lens element without adhesive
  • Reflective polarizer and linear polarizer without adhesive
  • Circular reflective polarizer with cholesteric liquid crystal layer
  • Circular reflective polarizer may provide optical power to lens module

Potential Applications

The technology described in this patent application could be applied in virtual reality headsets, augmented reality glasses, and other head-mounted displays where high-quality optics are required.

Problems Solved

This technology solves the problem of achieving high optical performance in a compact head-mounted display by using innovative optical elements and coatings.

Benefits

The benefits of this technology include improved image quality, reduced weight and size of the head-mounted display, and potentially lower manufacturing costs.

Potential Commercial Applications

The technology could be commercialized in the consumer electronics industry for virtual reality gaming, professional applications like medical imaging, and military applications for heads-up displays.

Possible Prior Art

One possible prior art could be the use of quarter wave plates and reflective polarizers in optical systems, but the specific combination of elements and coatings described in this patent application may be novel.

Unanswered Questions

How does this technology compare to existing head-mounted display optics on the market?

The article does not provide a direct comparison with existing head-mounted display optics in terms of performance, cost, or other factors.

What are the potential limitations or drawbacks of using a circular reflective polarizer with a cholesteric liquid crystal layer?

The article does not address any potential limitations or drawbacks of using this specific type of circular reflective polarizer in the head-mounted display.


Original Abstract Submitted

A head-mounted display may include a display system and an optical system that are supported by a housing. The optical system may be a catadioptric optical system having one or more lens elements. The optical system may include a quarter wave plate that is coated to the first lens element without an intervening adhesive layer. The optical system may further include a reflective polarizer and a linear polarizer. The linear polarizer may be formed as a coating directly on the reflective polarizer (without an intervening adhesive). A single circular reflective polarizer may be used instead of a quarter wave plate and a reflective polarizer. The circular reflective polarizer may be coated to the first lens element without an intervening adhesive layer. The circular reflective polarizer may optionally provide optical power to the lens module. The circular reflective polarizer may include a cholesteric liquid crystal layer.