Projektor mit Zweifacher Modulation

Details

Veröffentlichungs-Nr.

EP3418798

Aktenzeichen

EP18178932

Anmeldetag

21. Juni 2018

Veröffentlichung

29. Dezember 2021

Erteilung

29. Dezember 2021

Rechtsraum

EP

IPC

G02F1/1347G02F1/1335H04N9/31G02B26/06G03B21/00G03H1/22

Abstract

An image projector (200) comprises a controller (210) operative to receive image data (226) and to provide control signals based at least in part on said image data; a light source (209) configured to provide an illumination beam (222, 224); a reflective phase modulating spatial light modulator, SLM, (220) configured to selectively steer portions of said illumination beam (224) to create a modulated illumination beam (214) responsive to signals from said controller, said modulated illumination beam (214) including light modulated by said phase modulating SLM and unmodulated light reflected from said phase modulating SLM; an optical component (204) disposed in the path of said modulated illumination beam; a filter disposed at or near a Fourier plane of said optical component (214) and operative to at least partially block said unmodulated light reflected from said phase modulating SLM to create a filtered, modulated illumination beam (216); and an amplitude modulating spatial light modulator (206) disposed in said filtered, modulated illumination beam (216) and configured to selectively modulate the amplitude of portions of said filtered, modulated illumination beam to create an imaging beam (218).

Anmelder

Firma

Dolby Laboratories Licensing Corp.

Land

🇺🇸 USA

Fachgebiete