MANUFACTURING DEVICE FOR COLOR SYNTHESIS OPTICAL SYSTEM, MANUFACTURING METHOD FOR COLOR SYNTHESIS OPTICAL SYSTEM, AND PROJECTOR EQUIPPED WITH THE COLOR SYNTHESIS OPTICAL SYSTEM MANUFACTURED BY THE MANUFACTURING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a manufacturing device for a color synthesis optical system which makes it possible to fix a prism for color synthesis to a fixed plate speedily with high precision. SOLUTION: The manufacturing device 2 for the color synthesis optical system 150 is equipped with an image pickup part 31 which detects the plane position of a cross dichroic prism 151, a light source unit 37 which emits white laser light on a specific optical axis, a manufacturing part 33 which splits the emitted luminous flux into three color light beams, makes them incident on a light incidence end surface of the cross dichroic prism 151, and further projects the luminous flux synthesized by the cross dichroic prism 151 on a screen 411, a position sensor 414 which detects the image displayed on the screen 411, and a prism position adjustment unit 32 which positions and fixes the cross dichroic prism 151 on a fixed plate 153 according to image data picked up by the image pickup part 31 and the synthetic light detected by the position sensor 414.