Microdisplay optical system having two microlens arrays
OwnerSteven John Robbins, Yarn Chee Pooninventors
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Abstract
The technology provides an optical system for converting a source of projected light to uniform light for a liquid crystal on silicon microdisplay in a confined space, such as in a near-eye display device. The optical system may include a first microlens array, a second microlens array, and a polarizer device disposed between the first microlens array and the second microlens array. The near-eye display device having first and second microlens arrays may be positioned by a support structure in a head-mounted display or head-up display.
Claims20
An optical system for converting a source of projected light to uniform image light for a liquid crystal on silicon microdisplay in a confined space, the optical system comprising:
- a first microlens array;
- a second microlens array;
- and
- a polarizer device disposed between the first microlens array and the second microlens array.
A method for converting a source of projected light to uniform image light for a liquid crystal on silicon microdisplay in a confined space, the method comprising:
- directing the projected light to a first microlens array;
- polarizing light from the first microlens array;
- directing the polarized light a second microlens array to generate the uniform light;
- and
- directing the uniform light from the second microlens array to the liquid crystal on silicon microdisplay.
An apparatus comprising:
- a computer system that provides an electronic signal representing image data;
- and
- a head-mounted display that provides image data in response to the electronic signal, wherein the head-mounted display includes:
- a near-eye display device including:
- a projection light engine including:
- a microdisplay to provide the image data in response to the electronic signal;
- a light source to provide projected light;
- a first microlens array to receive the projected light from the light source;
- a polarizer device to generate polarized light from the first microlens array;
- and
- a second microlens array to receive the polarized light from the polarizer and to provide uniform light to the microdisplay.
Dependencies are inferred from the claim text.