Illumination – Light modifier – Reflector
Patent
1996-06-19
2000-08-01
Tso, Laura K.
Illumination
Light modifier
Reflector
362296, F21V 700
Patent
active
060956682
ABSTRACT:
A visual display sign having a lighting unit that provides high-efficiency light output from a non-point source of light. The reflector in the lighting unit is sealed and has a shaped reflecting surface obtained by generating a curve from a set of predetermined curve reference points. The shaped reflecting surface provides a light output efficiency of about 60 percent from a non-point source of light and spreads the emitted light about eight degrees from the plane of circumference of the reflector. The lighting units are attached to the visual display sign at a downward angle of about eight degrees from the horizontal.
REFERENCES:
patent: 1027306 (1912-05-01), Avery
patent: 1897202 (1933-02-01), Lehman
patent: 2313192 (1943-03-01), Decalion
patent: 3455046 (1969-07-01), Schulenburg
patent: 3840734 (1974-10-01), Oram
patent: 4021659 (1977-05-01), Wiley
patent: 4234914 (1980-11-01), Boesen
patent: 4345308 (1982-08-01), Mouyard et al.
patent: 4450508 (1984-05-01), Carley
patent: 4504894 (1985-03-01), Reibling
patent: 4536831 (1985-08-01), English et al.
patent: 4820956 (1989-04-01), Slobodzian et al.
patent: 4843527 (1989-06-01), Britt
patent: 5072349 (1991-12-01), Waniga
patent: 5119282 (1992-06-01), Meyer et al.
patent: 5138541 (1992-08-01), Kano
patent: 5229681 (1993-07-01), Gordin et al.
patent: 5268828 (1993-12-01), Miura et al.
patent: 5281889 (1994-01-01), Fields et al.
patent: 5321417 (1994-06-01), Voelzke et al.
patent: 5400228 (1995-03-01), Kao
patent: 5410328 (1995-04-01), Yoksza et al.
patent: 5497573 (1996-03-01), Stadjuhar et al.
patent: 5515251 (1996-05-01), Abke
patent: 5646473 (1997-07-01), Eggink et al.
patent: 5682448 (1997-10-01), Riser et al.
patent: 5704708 (1998-01-01), Barson et al.
patent: 5726525 (1998-03-01), Friederichs
patent: 5779351 (1998-07-01), Erickson et al.
"Prostar Advanced Video Display Systems," brochure, 1997, Daktronics, Inc., Brookings, South Dakota, USA.
Albrecht Richard E.
Rykowski Ronald F.
Radiant Imaging Inc.
Tso Laura K.
LandOfFree
Incandescent visual display system having a shaped reflector does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Incandescent visual display system having a shaped reflector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Incandescent visual display system having a shaped reflector will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-656972