AUTOSTEREOSCOPIC PROJECTION DEVICE

摘要

An autostereoscopic projection device includes an illuminating module, a light modulator, an optical module, and a lens module. The illuminating module is for providing light beams having different deflection angles in sequence. The light modulator is for modulating the light beams into compound images in sequence. The optical module is for guiding the light beams provided by the illuminating module to the light modulator, and guiding the compound images to the lens module. The lens module includes a beam splitting prism group, a first spatial filter, a second spatial filter, and a lens. The optical module is disposed at the incident surface of the beam splitting prism group. The first and second spatial filters are disposed at the first and second relay surfaces of beam splitting prism group for filtering the compound images to first and second images in sequence. The second images are different from the first images.

主权项

1. An autostereoscopic projection device, comprising:
an illuminating module for providing a plurality of light beams in sequence, wherein the light beams have different deflection angles; a light modulator for modulating the light beams into a plurality of compound images in sequence; an optical module for guiding the light beams provided by the illuminating module to the light modulator; and a lens module, wherein the optical module is further for guiding the compound images to the lens module, and the lens module comprises:
a beam splitting prism group having an incident surface, a light-emitting surface, a first relay surface, and a second relay surface, and comprising a double-sided reflector disposed between the first relay surface and the second relay surface, wherein the optical module is disposed at the incident surface;a first spatial filter disposed at the first relay surface for filtering the compound images to a plurality of first images in sequence;a second spatial filter disposed at the second relay surface for filtering the compound images to a plurality of second images in sequence, wherein the second images are different from the first images; anda lens disposed at the light-emitting surface.