Irradiance-redistribution lens and its applications to LED...

Details Irradiance-redistribution lens and its applications to LED... Irradiance-redistribution lens and its applications to LED...

2005-11-09

2009-11-17

Truong, Bao Q (Department: 2875)

Illumination

Light modifier

Refractor

C362S334000, C362S336000, C362S340000, C362S800000

Reexamination Certificate

active

07618162

ABSTRACT:
An illumination-redistribution lens comprising a thick aspheric lens collecting a high proportion of the luminous output of a compact LED with a quasi-hemispheric pattern. After receiving the highly nonuniform illuminance from the nearby LED, the lower surface refractively deflects these rays into a less diverging angular pattern that results in uniform illuminance on the upper surface of the lens, which itself is shaped so its distribution of slope angles refractively deflects the uniform illuminance distribution into an exiting beam that will produce uniform illuminance on a distant target, such as a table below a ceiling-mounted unit. When square-cut sections of such lenses are laterally arrayed to form a downlight, a uniform rectangular spot will be produced on the target.

REFERENCES:
patent: 3470561 (1969-09-01), Horst
patent: 3754814 (1973-08-01), Leith
patent: 4655539 (1987-04-01), Caulfield et al.
patent: 5339177 (1994-08-01), Jenkins et al.
patent: 5600487 (1997-02-01), Kiyomoto et al.
patent: 5607492 (1997-03-01), Doric
patent: 5924788 (1999-07-01), Parkyn, Jr.
patent: 6433936 (2002-08-01), Carpenter et al.
patent: 2004/0228131 (2004-11-01), Minano et al.
patent: 2007/0109615 (2007-05-01), Wunderer

Affiliated with

Also associated with

Rating

Irradiance-redistribution lens and its applications to LED... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Irradiance-redistribution lens and its applications to LED..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Irradiance-redistribution lens and its applications to LED... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4101096