JP2017138486A5 - - Google Patents

Description

Next, the photosynthesis device 60 and the fixing method thereof will be described.
The photosynthesis device 60 of this embodiment is a rectangular parallelepiped cross dichroic prism 52. Photosynthetic apparatus 60 has three incident surfaces 61R, and 61G, 61 B, and one exit surface 61C, the incident surface 61R, and two orthogonal planes perpendicular to 61G, 61 B and the exit surface 61C, a.

The first reflective film 65R reflects only the red light LR and transmits light of other wavelengths. The first reflective film 65R reflects the red light LR incident from the incident surface 61R to the emission surface 61C side. The second reflective film 65B reflects only the blue light LB and transmits light of other wavelengths. The second reflective film 65B reflects the blue light LB incident from the incident surface 61B to the emission surface 61C side. The first reflective film 65R and the second reflective film 65B transmit the green light LG incident from the incident surface 61G. Thus photosynthetic apparatus 60, the incident surface 61R, 61G, 61 red light LR enters from B, and combining the blue light LB and green light LG emitted from the exit surface 61C.

Next, as shown in FIG. 6, posture adjustment of the photosynthesis device 60 with respect to the fixed base 72 is performed (posture adjustment step). Posture adjustment photosynthetic apparatus 60, the incident surface 61R of the photosynthetic apparatus 60, while observing the camera composite image projected from the exit surface 61C is incident light from 61G, 61 B to the light source 2 (or test light source) Do. When the photosynthesizer 60 is inclined with respect to an appropriate angle, the synthesized image is displaced. The operator (or the adjustment device) rotates the photosynthesis device 60 in the Xθ direction, the Yθ direction, and the Zθ direction so as to minimize the deviation of the observed image.
After the posture adjustment of the photosynthesis device 60 is completed, the adhesive 74 is cured by irradiating ultraviolet rays, and the fixing surface 73 and the fixing surface 63 are fixed to each other.

Claims (5)

A light source;
A plurality of light modulation devices that form image light by modulating light from the light source;
A photosynthesis device that synthesizes a plurality of the image lights;
A fixing portion for fixing the photosynthesis device,
The photosynthesis device has a fixed surface fixed to the fixing portion,
The fixing portion has a fixing surface for fixing the photosynthetic device,
The fixed surface has a vertex that makes point contact with the fixed surface;
The contact point with the apex on the fixed surface does not move from the apex when the relative posture of the fixing unit and the photosynthesis device is changed.
projector.   The projector according to claim 1, wherein an adhesive is filled between the fixed surface and the fixed surface. The fixed surface is a conical surface;
The projector according to claim 1 or 2 . The light combining device is a cross dichroic prism having three incident surfaces on which light is incident, one exit surface that emits combined light, and two orthogonal surfaces that are orthogonal to the incident surface and the exit surface. Yes,
Wherein the fixed surface, of the two orthogonal planes is either projector according to any one of claims 1-3. The fixed surface is in point contact with the center of the fixed surface;
The projector according to claim 4 .