Light-emitting device and apparatus having the same

Details Light-emitting device and apparatus having the same Light-emitting device and apparatus having the same

2007-05-29

2007-05-29

Schwartz, Jordan (Department: 2873)

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

C396S199000, C362S602000

Reexamination Certificate

active

11374536

ABSTRACT:
A light-emitting device is disclosed which allows efficient irradiation of light from a plurality of light sources to achieve a predetermined light emission characteristic and has a small size. The light-emitting device has an optical member which includes a first reflecting surface which reflects light incident thereon from a first light source, a second reflecting surface which reflects light incident thereon from a second light source, and an emergence portion which causes the light from the first reflecting surface and the light form the second reflecting surface to emerge therefrom. The optical member reflects the light by the second reflecting surface and then transmits the light through the first reflecting surface to guide the light to the emergence portion.

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patent: 2002/0154511 (2002-10-01), Verlage et al.
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patent: 2005/0024890 (2005-02-01), Yamamoto et al.
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patent: 2006/0039692 (2006-02-01), Lee et al.
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patent: 2000089318 (2000-03-01), None
patent: 2001-255574 (2001-09-01), None
patent: 2001255574 (2001-09-01), None

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