Optical compensation element adjusting mechanism and projector

• Main Author: Iinuma, Kazuyuki
• Format: Patent
• Language: English
• Published: 11.09.2018
• 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; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; ELECTROGRAPHY; FREQUENCY-CHANGING; HOLOGRAPHY; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICAL LOGIC ELEMENTS; OPTICS; PHOTOGRAPHY; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

An optical compensation element adjusting mechanism capable of adjusting an inclination of an optical compensation element with high accuracy and a projector. The mechanism includes an optical compensation element which optically compensates a liquid crystal panel and an adjusting frame which adjusts an angle of the element to the liquid crystal panel. The adjusting frame includes an approximately rectangular holding portion which holds the optical compensation element, a pair of fixing portions which respectively extends from positions, which become a diagonal, of the holding portion in a direction intersecting with the holding portion and which is respectively fixed to a first holding member to which the adjusting frame is attached, and an adjusting portion which is disposed at a position away from the pair of fixing portions and which inclines the optical compensation element by inclining the holding portion around a virtual line connecting the pair of fixing portions.