Title:
PROJECTION DEVICE
Document Type and Number:
Japanese Patent JP2022098429
Kind Code:
A
Abstract:
To provide a projection device.SOLUTION: The projection device includes a first display, a second display, a third display, a light mixing module, a first angle selector, a second angle selector, a third angle selector, and a projection lens. The first display, the second display, and the third display are respectively used to provide a first image beam, a second image beam, and a third image beam. The projection lens is disposed on a side of a light-outgoing surface of the light mixing module, and is used to project the first image beam, the second image beam, and the third image beam outside the projection device. The first image beam, the second image beam, and the third image beam respectively pass through the first angle selector, the second angle selector, and the third angle selector, and then propagates to the projection lens by the light-mixing module. The present invention can effectively reduce stray light propagating to the outside of the projection device by the light mixing module and increase contrast of a projection screen.SELECTED DRAWING: Figure 1
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Inventors:
HUANG YU-AN
Application Number:
JP2021169217A
Publication Date:
July 01, 2022
Filing Date:
October 15, 2021
Export Citation:
Assignee:
CTX OPTO ELECTRONICS CORP
International Classes:
G03B21/14; G03B21/00; H04N5/74
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Osamu Miyazaki
Tadahiko Ito
Osamu Miyazaki