Light source device
AssigneePhoenix Electric Co., Ltd.
InventorsShinichi Ushijima, Atsuji Nakagawa, Toshitaka Fujii
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Abstract
To prevent scattering of broken pieces of a reflecting mirror even if a high pressure discharge lamp with a reflector bursts. A light source device according to the present invention is a light source device 10 that has an arc tube 1 and a reflector 2, and a cover glass 4 is externally fitted and fixed to the rear of the reflector 2 at opposite ends thereof with a gap S therebetween. With such a configuration, even if the arc tube bursts to cause a crack in the reflector, the cover glass prevents scattering of the broken pieces of the reflector.
Claims4
A light source device, comprising:
- an arc tube of a high pressure discharge lamp;
- and
- a reflector, which is in a suitable thickness to prevents cracking due to thermal stresses,
- wherein a cover glass is externally fitted and fixed to the rear of the reflector at opposite ends thereof with a buffering space gap therebetween.
A light source device, comprising:
- an arc tube;
- and
- a reflector,
- wherein a cover glass is externally fitted and fixed to the rear of the reflector at opposite ends thereof with a gap therebetween, and
- a reflecting film that selectively reflects visible light is formed on an inner surface of said cover glass.
Dependencies are inferred from the claim text.