JP2010231239A5 - - Google Patents

Claims (7)

A plurality of reflective light modulators for modulating a plurality of colored lights according to image information for each colored light;
A plurality of reflection-type polarizing plates for polarization-separating the light beam irradiated to the reflection-type light modulation device and the light beam modulated by the reflection-type light modulation device;
Each incident light beam has a plurality of light beam incident side end surfaces on which light beams modulated by the plurality of reflection type light modulation devices and polarized and separated by the plurality of reflection type polarizing plates respectively enter, and a light beam emission side end surface. A color synthesizing optical device that forms image light and emits the image light from the end surface on the light beam exit side,
A plurality of mounting members for supporting the front Symbol reflective light modulation device and the reflective polarizer,
A plurality of adjusting members that support the mounting member and fix the light flux incident side end surface;
Either one of the attachment member and the adjustment member is provided with an engagement protrusion that protrudes to the other.
The other of the attachment member and the adjustment member is provided with an engagement receiving portion into which the engagement protrusion is inserted in a loosely fitted state .
Either the engagement protrusion or the engagement receiving portion is provided on each of the top surface and the bottom surface of the mounting member . The optical device according to claim 1 .
The adjustment member includes a main body attached to the end surface on the light incident side, and a pair of arm portions protruding from the main body to the light incident side and sandwiching the attachment member,
The pair of arms are respectively formed with the engaging protrusions protruding toward the other arm.
The optical receiving device is characterized in that concave engagement receiving portions are formed on the top surface and the bottom surface of the mounting member, respectively, corresponding to the engaging protrusions. The optical device according to claim 2 .
Each of the side wall portions of the mounting member is formed with an insertion groove that is connected to the engagement receiving portion and extends toward the other side wall portion that intersects each of the side wall portions,
The optical device is characterized in that the engagement protrusion is positioned in the engagement receiving portion via the insertion groove by inserting the attachment member between the pair of arm portions. The optical device according to claim 3 .
The engagement receiving portion is formed to extend along a first direction orthogonal to the light beam incident side end surface,
The optical device is characterized in that the insertion groove is formed to be inclined and extend in a second direction orthogonal to the first direction. The optical device according to any one of claims 1 to 4 ,
A plurality of optical elements on which light beams modulated by the plurality of reflection type light modulation devices and polarized and separated by the plurality of reflection type polarizing plates respectively enter;
The mounting member is composed of a hollow member in which three openings communicating with an internal space are formed,
The three openings are respectively closed by the reflective light modulation device, the reflective polarizing plate, and the optical element. The optical device according to claim 5 .
An optical device, wherein a gap is formed between the attachment member and the adjustment member. Projector that the light source device, an optical device according to any one of claims 1 to 6, characterized by comprising a projecting elevation lens.