DEVICES, METHODS, AND SYSTEMS FOR IMAGE VIEWING
First Claim
1. A lens element, comprising:
- a dual aspheric lens substrate having a first surface and a second surface;
a diffractive/Fresnel structure associated with the first surface; and
wherein the diffractive/Fresnel structure has a cross-section having a substantially non-planar characteristic.
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Abstract
Devices, methods and systems for image viewing. Various example embodiments of devices, methods and systems for image viewing are disclosed. In one or more example embodiments, the disclosure provides devices, methods and/or systems for image viewing, having one or more of: modular characteristics; telecentric characteristics; lens designs; lens designs in combination with other optical components; an image viewer and headgear as components of a head mounted display; a combination of an image viewer, headgear, and connection technologies as components of a head mounted display, whereby the connection technologies support modular characteristics by enabling detachable connection of one or more expansion components.
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Citations
45 Claims
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1. A lens element, comprising:
- a dual aspheric lens substrate having a first surface and a second surface;
a diffractive/Fresnel structure associated with the first surface; and
wherein the diffractive/Fresnel structure has a cross-section having a substantially non-planar characteristic. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13)
- a dual aspheric lens substrate having a first surface and a second surface;
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12. A head-mounted display assembly, comprising a lens element as claimed in claim
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14. A head-mounted display system, the head-mounted display (HMD) system providing, as to image viewing, a prescribed optical performance and telecentric characteristics, the image being viewed via propagated light, the HMD system comprising:
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A first relay lens, the first relay lens providing selected collimation of plural portions of propagated light; A second relay lens, the second relay lens being optically coupled with the first relay lens and being movable relative to the first relay lens so as to enable a selected variation in distance between the first and second relay lenses; and Wherein, within the selected variation in distance, the prescribed optical performance of the HMD system is substantially maintained. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A modular head-mounted display system, the display system comprising:
- headgear, an image viewer, one or more peripherals connectors and driver/interface electronics.
- View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44, 45)
Specification