Search International and National Patent Collections

1. (WO2018089398) RGB PROJECTOR WITH MULTI-LASER BROADBAND LIGHT SOURCE AND SYSTEM FOR DYNAMICALLY CONTROLLING IMAGE CONTRAST RATIO

Pub. No.:    WO/2018/089398    International Application No.:    PCT/US2017/060495
Publication Date: Fri May 18 01:59:59 CEST 2018 International Filing Date: Thu Nov 09 00:59:59 CET 2017
IPC: G03B 21/00
G05D 25/00
Applicants: IPG PHOTONICS CORPORATION
Inventors: SHKURIKHIN, Oleg
AVDOKHIN, Alexey
BABUSHKIN, Andrei
EROKHIN, Yuri
Title: RGB PROJECTOR WITH MULTI-LASER BROADBAND LIGHT SOURCE AND SYSTEM FOR DYNAMICALLY CONTROLLING IMAGE CONTRAST RATIO
Abstract:
A high dynamic range projector (HDRP) is configured with at least one spatial light modulator having red, green and blue digital light projector (DPL) chips, a light laser source including red, green and blue (RGB) light laser systems which are operative to illuminate respective DLP chips; and a central processing unit (CPU) coupled to the DLP engines and respective RGB light laser systems, wherein the CPU is operative to determine an optimal average power of each of the RGB light laser systems at a frame rate based on a desired contrast ratio.