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Optical systems with reflective prism input couplers

An in-coupling, prism technology, applied in the field of optical systems, that can solve problems such as not exhibiting optical performance levels, unsightly components, and bulkiness

Pending Publication Date: 2022-02-08
APPLE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The components used to display content can be unsightly and bulky and may not exhibit the desired level of optical performance if the slightest care is not taken

Method used

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  • Optical systems with reflective prism input couplers
  • Optical systems with reflective prism input couplers
  • Optical systems with reflective prism input couplers

Examples

Experimental program
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Embodiment Construction

[0026] figure 1 An exemplary system having a device with one or more near-eye display systems is shown in . System 10 may be a head-mounted device having one or more displays, such as near-eye display 14 mounted within support structure (housing) 20 . The support structure 20 may have the shape of a pair of eyeglasses (e.g., a support frame), may form a housing in the shape of a helmet, or may have features to help mount and secure components of the near-eye display 14 on the user's head or near the eyes. other configurations. Near-eye display 14 may include one or more display modules, such as display module 14A, and one or more optical systems, such as optical system 14B. Display module 14A may be mounted in a support structure such as support structure 20 . Each display module 14A may emit light 22 (image light), which is redirected toward the user's eye at eye box 24 using an associated one of optical systems 14B.

[0027] Control circuitry 16 may be used to control th...

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PUM

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Abstract

An electronic device may include a display module that generates light and an optical system that redirects the light towards an eye box. The system may include an input coupler on a waveguide and a lens that directs the light towards the input coupler. The input coupler may include a prism having a reflective surface that reflects the light into the waveguide. The reflective surface may be curved to provide the light with an optical power. The prism may be configured to expand a field of view of the light. A birefringent beam displacer may expand the effective pupil size of the light. The lens may include lens elements that converge the light at a location between the lens elements and the waveguide. A switchable panel may be placed at the location and toggled between first and second orientations to increase the effective resolution of the light.

Description

[0001] This patent application claims priority to U.S. Provisional Patent Application No. 62 / 902,645, filed September 19, 2019, which is hereby incorporated by reference in its entirety. Background technique [0002] The present invention relates generally to optical systems, and more particularly to optical systems for displays. [0003] Electronic devices may include displays that present images to the eyes of a user. For example, devices such as virtual reality and augmented reality headsets may include a display with optics that allow a user to view the display. [0004] Designing devices such as these can be challenging. If one is not careful, the components used to display content can be unsightly and bulky, and may not exhibit the desired level of optical performance. Contents of the invention [0005] Electronic devices such as head-mounted devices may have one or more near-eye displays that generate images for the user. The headset may be a pair of virtual realit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/01G02B6/00
CPCG02B27/0172G02B6/0025G02B6/0031G02B6/003G02B6/0023G02B6/005G02B6/0016G02B6/0036G02B6/0018G02B2027/0123G02B2027/0147G02B2027/0163
Inventor V·巴克塔彭国林H·崔K·A·凯尔巴赫S·M·德拉普
Owner APPLE INC