Light Shaping for Imaging using Holography

摘要

A plurality of light sources of different wavelength bands can be provided. An imaging device can be configured to modulate incoming light according to video image data and output modulated light. A projection lens can be positioned to project the modulated light. An optical combiner can be disposed between the light sources and the imaging device. A plurality of holographic devices can each include a plurality of different holographic elements selectively positionable in a light path extending between one of the light sources and the optical combiner. Each of the holographic elements can define a light-shaping hologram. A controller can be configured to selectively position the holographic elements of the holographic devices based on the video image data.

主权项

1. An image projector comprising:
a light source; an imaging device configured to modulate incoming light according to image data and output modulated light; a projection lens positioned to project the modulated light; and a holographic device including a plurality of different holographic elements, the holographic device configured to selectively position each of the holographic elements of the plurality of different holographic elements in a light path extending between the light source and the imaging device.