POSITION ADJUSTING METHOD AND POSITION ADJUSTING SYSTEM OF COLOR COMBINING OPTICAL SYSTEM, POSITION ADJUSTING METHOD AND POSITION ADJUSTING SYSTEM OF OPTICAL MODULATOR, COLOR COMBINING OPTICAL SYSTEM AND PROJECTOR

摘要

In order to adjust position of color combining optical system relative to a color separating optical system accommodated in an optical component casing for producing a projector, a white laser beam is irradiated on an optical axis of a light beam passing through the optical component casing and is separated by the color separating optical system, the separated respective color lights being incident on a light-incident end surface of the color combining optical system to be combined, the combined light beam being detected by a sensor, in which the position is adjusted while detecting the combined light beam.