Lighting device and projector equipped with the same

Details Lighting device and projector equipped with the same Lighting device and projector equipped with the same

2006-12-19

2006-12-19

Koval, Melissa Jan (Department: 2851)

Optics: image projectors

Unitary plural refracting surfaces

C353S102000

Reexamination Certificate

active

07150535

ABSTRACT:
A lighting includes: a light source device; a concave lens having a light-incident surface formed from a hyperboloid of revolution to make the luminous flux from the light source device almost parallel; a first lens array; and a second lens array, with a concave surface is present between the light-incident surface of the concave lens and the first lens array, and the concave surface causes, together with the light-incident surface of the concave lens, the luminous flux to travel along an optical path heading to an outer side rather than an optical path parallel to an optical axis of the light source device, while causing the luminous flux to pass through the small lenses that correspond to each other in the first lens array and the second lens array.

REFERENCES:
patent: 6046856 (2000-04-01), Takahashi et al.
patent: 6283615 (2001-09-01), Takahashi
patent: 6431727 (2002-08-01), Sugawara et al.
patent: 6486997 (2002-11-01), Bruzzone et al.
patent: 2002/0018184 (2002-02-01), Ito
patent: 2004/0046942 (2004-03-01), Katsumata et al.
patent: 2005/0041215 (2005-02-01), Fujimori
patent: 0 395 156 (1990-10-01), None
patent: A 3-111806 (1991-05-01), None
patent: A 7-174974 (1995-07-01), None
patent: A 2000-298310 (2000-10-01), None
patent: A 2000-347293 (2000-12-01), None
patent: A 2002-244199 (2002-08-01), None
patent: WO 02/088842 (2002-11-01), None
H. Moench et al., “9.1: Arc Stabilisation for Short Arc Projection Lamps,”SID 00 Digest,vol. XXXI, 2000, pp. 84-87, XP007007334.

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