Patent ID: 6905214
Filing Date: 2005-06-14
Classification: G03B,H04N

Abstract:
1. An illumination apparatus comprising: an illuminant which radiates diffused light from an outgoing plane and generates heat; a light guiding member configured to guide the diffused light from the illuminant while reflecting the diffused light at an internal surface thereof, the light guiding member including: an incident end which is close to the outgoing plane of the illuminant, and into which the diffused light is incident and which is larger than the outgoing plane of the illuminant; and an outgoing end which is larger than the incident end; and a holding member configured to integrally hold the illuminant and the light guiding member at a predetermined interval, the holding member including: a heat conducting portion configured to conduct the heat generated at the illuminant; and a heat radiating portion configured to radiate heat from the heat conducting portion; and wherein the holding member includes a heat insulating portion configured to suppress conduction of heat between the heat radiating portion and the light guiding member.