Search International and National Patent Collections

1. (WO2015045133) PROJECTOR UNIT

Pub. No.:    WO/2015/045133    International Application No.:    PCT/JP2013/076443
Publication Date: Fri Apr 03 01:59:59 CEST 2015 International Filing Date: Mon Sep 30 01:59:59 CEST 2013
IPC: G03B 21/16
G03B 21/00
Applicants: ITSLAB, INC
ITSLab株式会社
CHAORI SOLAR Co., Ltd
CHAORI SOLAR株式会社
Inventors: ISHIWATA Takehiko
石渡 武彦
Title: PROJECTOR UNIT
Abstract:
[Problem] To reduce the thickness of a projector unit in the optical axis direction of a light source while more efficiently radiating heat from a light source. [Solution] The height is set as the shortest dimension among the height, width, and depth of a unit. A substrate (2) is disposed on the bottom surface of the unit and equipped with light sources (11-13) having an optical axis in the height direction. Each light source is equipped with a mirror (31-33) thereabove for bending the optical axis of the light source within a plane defined by the width and depth directions of the unit. A reflection type picture element (5) receives light bent by the mirrors, forms video light, and emits the video light therefrom. The video light is projected from a projection optical system (6) disposed on the optical path. The bottom surface of the substrate (2) is exposed from the unit, and the substrate is made of a material having a thermal conductivity of 150 W / (m∙K) or more. When the unit is installed in a housing of an electronic device, the exposed surface of the substrate (2) is brought into contact with a heat radiation member on the inner surface of the housing of the electronic device.