Light source device and projector

Abstract

A light source device includes: light sources arranged in a plane; collimator lenses disposed in the vicinities of corresponding each of the light sources, each of the collimator lenses collimating a light beam emitted from the corresponding light source, and a holder that holds the light sources and the collimator lenses. The holder holds the light sources and the collimator lenses so that optical axes of the collimator lenses are parallel with the optical axes of the light sources and respectively shifted relative to the latter by shift lengths that are set so that light beams emitted from the light sources via the collimator lenses are focused on a certain region of an illumination subject body. The light beams emitted from the light sources are refracted by the collimator lenses and focused on the certain region.

Description

[0001] This application is based on the application date of March 31, 2011, the application number is 2011-079371, and the priority of the application is claimed. The disclosure of the description, claims, drawings and abstract is here as a whole Cite for reference. Technical field

[0002] The embodiment of the present invention relates to a light source device and a projector. Background technique

[0003] Nowadays, as an image projection device that projects a screen of a personal computer, a video image, and an image of image data stored in a memory card, etc., on a screen, a data projector is often used. This projector condenses the light emitted from the light source on a micromirror display element called DMD (Digital Micromirror Device) or a liquid crystal panel, and displays a color image on the screen.

[0004] Among such projectors, high-intensity discharge lamps have become the mainstream as the light source. However, in recent years, the development of various projecto...

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