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Head-mounted display apparatus employing one or more fresnel lenses

A head-mounted display, Fresnel lens technology, applied in the lens, the input/output process of data processing, instruments, etc., can solve the problems of bulky, increased volume and weight of the head-mounted display

Inactive Publication Date: 2013-08-21
LOCKHEED MARTIN CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Systems using multiple mirrors or prisms add bulk and weight, making such head-mounted displays bulkier than expected

Method used

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  • Head-mounted display apparatus employing one or more fresnel lenses
  • Head-mounted display apparatus employing one or more fresnel lenses
  • Head-mounted display apparatus employing one or more fresnel lenses

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Embodiment Construction

[0072] summary

[0073] As described above, the present invention relates to a head-mounted display device that provides collimated or substantially collimated images to the user by using a Fresnel lens system, which may be a curved Fresnel lens system. Fresnel lens system (as described below); the Fresnel lens system may be the only collimation source in the optical system, or in a specific embodiment, a curved optical reflective surface such as FS / UWA / RO reflective surface is used, and the Fresnel lens system The collimation of the Neel lens system can be performed in conjunction with the collimation provided by the curved optical reflective surfaces.

[0074]The following discussion begins with an embodiment employing FS / UWA / RO reflective surfaces (Section II), followed by a discussion of an embodiment employing a Fresnel lens system and other disclosed embodiments (Section III), which also deals with Design Flow for FS / UWA / RO Surfaces for an Optical System Including a F...

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PUM

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Abstract

Head-mounted displays (100) are disclosed which include a frame (107), an image display system (110) supported by the frame (107), and a Fresnel lens system (115) supported by the frame (107). The HMD (100) can employ a reflective optical surface, e.g., a free-space, ultra-wide angle, reflective optical surface (a FS / UWA / RO surface) (120), supported by the frame (107), with the Fresnel lens system (115) being located between the image display system (110) and the reflective optical surface (120). The Fresnel lens system (115) can include at least one curved Fresnel lens element (820). Fresnel lens elements (30) for use in HMDs are also disclosed which have facets (31) separated by edges (32) which lie along radial lines (33) which during use of the HMD pass through a center of rotation (34) of a nominal user's eye (35) or through the center of the eye's lens (36) or are normal to the surface of the eye's cornea.

Description

[0001] Related patent applications cross-referenced by this patent application [0002] This patent application claims priority to: U.S. Patent Application No. 13 / 211,365, filed August 17, 2011; and U.S. Provisional Application 61 / 405,440, titled Head Mounted Displays, filed Oct. 2010. twenty one). U.S. provisional application 61 / 417,325 (named arc stacked Fresnel structure, filing date is 2010.11.26) U.S. provisional application 61 / 417,326 (named arc beam splitter structure, filing date is 2010.11.26) U.S. provisional application 61 / 417,327 (named Fresnel lens and flat beam splitter combination structure, filing date is 2010.11.26) U.S. provisional application 61 / 417,328 (named Fresnel lens and curved beam splitter combination Structure, filing date is 2010.11.26) U.S. provisional application 61 / 427,530 (named as a curved mirror for head-mounted display device, filing date is 2010.12.28) is incorporated herein by reference in its entirety. technical field [0003] The prese...

Claims

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Application Information

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IPC IPC(8): G02B27/01G02B27/00
CPCG02B3/08G02B27/0172G02B27/022G02B2027/0178G02F1/133526G06F3/013
Inventor 大卫·艾伦·史密斯加里·E·威斯格列·卡拉克·克德黑格雷戈里·A·哈里森
Owner LOCKHEED MARTIN CORP
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