Composite-optical-system unit and projector

A composite-optical-system unit (40) includes a plurality of polarization beam splitters (400A, 400B, and 400C), a pair of spacer plates (420 or the like), and an optical element (411). Each of the pair of spacer plates (420) is arranged between the first polarization beam splitter (400A) and the se...

Full description

Saved in:
Bibliographic Details
Main Author Aikoh, Yoshihisa
Format Patent
LanguageEnglish
Published 15.06.2021
Subjects
ACCESSORIES THEREFOR
APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES
APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM
CINEMATOGRAPHY
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
ELECTROGRAPHY
HOLOGRAPHY
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHOTOGRAPHY
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
Online AccessGet full text

Cover

More Information
Summary:A composite-optical-system unit (40) includes a plurality of polarization beam splitters (400A, 400B, and 400C), a pair of spacer plates (420 or the like), and an optical element (411). Each of the pair of spacer plates (420) is arranged between the first polarization beam splitter (400A) and the second polarization beam splitter (400C) of the plurality of polarization beam splitters such that a first contact surface is fixed on an emission-side surface (403) of the first polarization beam splitter (400A) by surface contact, and a second contact surface is fixed on an incident-side surface (405a) of the second polarization beam splitter (400C) by surface contact. The optical element (411) is arranged between the pair of spacer plates (420).
Bibliography:Application Number: US201716315946