Optical mechanism

Patent metadata

Field	Value
Publication number	US-9551879-B2
Application number	US-201514883712-A
Country	US
Kind code	B2
Filing date	Oct 15, 2015
Priority date	Oct 27, 2014
Publication date	Jan 24, 2017
Grant date	Jan 24, 2017

Abstract

An optical mechanism includes a bracket, a first polarization beam splitter, a second polarization beam splitter, a plurality of panels and a plurality of lenses. The first polarization beam splitter and the second polarization beam splitter are joined to the bracket. Light passes through the first polarization beam splitter to reach the panels and is reflected by the panels to generate image beams. The image beams are reflected by the first polarization beam splitter to enter the second polarization beam splitter. The image beams are reflected by a splitting surface of the second polarization beam splitter to pass through the lenses and projected by the lenses.

First claim

What is claimed is:

1. An optical mechanism, comprising:
a bracket having a first side and a second side;
a first polarization beam splitter connected to the first side;
a second polarization beam splitter connected to the second side and comprising a first splitting surface and a light exiting surface;
a plurality of panels disposed near the first polarization beam splitter; and
a plurality of lenses disposed near the second polarization beam splitter and arranged corresponding to the panels, wherein light passing through the first polarization beam splitter is reflected by the panels to generate a first image beam and a second image beam; the first image beam and the second image beam are reflected by the first polarization beam splitter, enter the second polarization beam splitter, leave the second polarization beam splitter through the light exiting surface, and are projected through the lenses to form an image; the second image beam is reflected by the first light splitting surface to the light exiting surface after entering the second polarization beam splitter; and the second image beam is projected through one of the lenses.

2. The optical mechanism as claimed in claim 1 , wherein the first side and the second side are opposite.

3. The optical mechanism as claimed in claim 1 , wherein the first polarization beam splitter comprises a polarization beam split plate.

4. The optical mechanism as claimed in claim 1 , wherein the second polarization beam splitter comprises a polarization beam split block.

5. The optical mechanism as claimed in claim 1 , wherein the panel is a liquid crystal on silicon panel.

6. The optical mechanism as claimed in claim 5 , wherein the bracket is made of glass.

7. The optical mechanism as claimed in claim 6 , wherein the bracket is made of Borofloat glass.

8. An optical mechanism, comprising:
at least one first polarization beam splitter;
only one second polarization beam splitter having a light exiting surface;
a plurality of panels; and
at least one lens corresponding to the panels and the light exiting surface, wherein light passing through the first polarization beam splitter is reflected by the panels to generate a plurality of image beams, the image beams are reflected by the first polarization beam splitter, enter the second polarization beam splitter and leave the second polarization beam splitter through the light exiting surface, and the image beams are projected through the lens to form an image.

9. The optical mechanism as claimed in claim 8 , wherein the optical mechanism comprises a plurality of lenses, and the image beams are projected through the lenses to form an image.

10. The optical mechanism as claimed in claim 9 , wherein the lenses are arranged horizontally with respect to the second polarization beam splitter.

11. The optical mechanism as claimed in claim 9 , wherein the lenses are arranged vertically with respect to the second polarization beam splitter.

12. The optical mechanism as claimed in claim 10 , wherein the second polarization beam splitter extends lengthwise.

Assignees

• Sintai Optical Shenzhen Co Ltd
• Asia Optical Int Ltd

Inventors

• Lin Keng-Hui

Classifications

• G03B21/2073

  Polarisers in the lamp house (peculiar to electronic spatial light modulators H04N9/3197) · CPC title

• G03B35/20

  using two or more projectors · CPC title

• G02B27/0101

  characterised by optical features (G02B27/0172 takes precedence) · CPC title

• G02B27/283 Primary

  used for beam splitting or combining · CPC title

• G02B2027/0132

  comprising binocular systems · CPC title