Projection system and light-guiding assembly thereof

Details Projection system and light-guiding assembly thereof Projection system and light-guiding assembly thereof

2006-09-19

2009-02-24

Alavi, Ali (Department: 2875)

Illumination

Light source and modifier

Including reflector

C362S621000

Reexamination Certificate

active

07494253

ABSTRACT:
A projection system comprises a light source module and a light-guiding assembly. The light source module comprises a reflecting cover and a light source disposed in the reflecting cover to form a first beam with a first f-number. The light-guiding assembly comprises a body with an incident end and a lens disposed on the incident end. The first beam passes through the lens disposed on the incident end to form a second beam with a second f-number. The second f-number of the second beam is different from the first f-number of the first beam.

REFERENCES:
patent: 5446816 (1995-08-01), Shiraishi et al.
patent: 5680257 (1997-10-01), Anderson
patent: 2003/0007132 (2003-01-01), Shouji
patent: 1510453 (2004-07-01), None
patent: 1549000 (2004-11-01), None

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