Illumination device with at least one LED as the light source

Details Illumination device with at least one LED as the light source Illumination device with at least one LED as the light source

2007-03-20

2010-10-26

Roy, Sikha (Department: 2879)

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

C313S486000, C313S499000, C313S512000, C257S099000, C252S30140R, C252S30160P

Reexamination Certificate

active

07821196

ABSTRACT:
An illumination device with at least one LED as the light source, the LED emitting primary radiation in the range from 370 to 430 nm of the optical spectral region (peak wavelength), this radiation being partially or completely converted into radiation of a longer wavelength by three phosphors which are exposed to the primary radiation from the LED and which emit in the blue, green and red spectral regions, so that white light is formed. The conversion is achieved at least with the aid of a phosphor which emits blue light with a wavelength maximum at 440 to 485 nm, and with the aid of a phosphor which emits green light with a wavelength maximum at 505 to 550 nm, and with the aid of a phosphor which emits red light with a wavelength maximum at 560 to 670 nm.

REFERENCES:
patent: 3505240 (1970-04-01), Barry
patent: 3544481 (1970-12-01), Barry
patent: 4859902 (1989-08-01), De Leeuw et al.
patent: 5604763 (1997-02-01), Kato et al.
patent: 5640792 (1997-06-01), Smith et al.
patent: 5813753 (1998-09-01), Vriens et al.
patent: 5851063 (1998-12-01), Doughty et al.
patent: 5885752 (1999-03-01), Itou et al.
patent: 5998925 (1999-12-01), Shimizu et al.
patent: 6051925 (2000-04-01), Boerner et al.
patent: 6084250 (2000-07-01), Justel et al.
patent: 6096243 (2000-08-01), Oshio et al.
patent: 6099754 (2000-08-01), Yocom
patent: 6234648 (2001-05-01), Borner et al.
patent: 6255670 (2001-07-01), Srivastava et al.
patent: 6294800 (2001-09-01), Duggal et al.
patent: 6299338 (2001-10-01), Levinson et al.
patent: 6392248 (2002-05-01), Takahara et al.
patent: 6429583 (2002-08-01), Levinson et al.
patent: 6576156 (2003-06-01), Ratna et al.
patent: 6603146 (2003-08-01), Hata et al.
patent: 6614172 (2003-09-01), Chiu et al.
patent: 6621211 (2003-09-01), Srivastava et al.
patent: 6628249 (2003-09-01), Kamikawa et al.
patent: 6666738 (2003-12-01), Kado et al.
patent: 6791259 (2004-09-01), Stokes et al.
patent: 6982045 (2006-01-01), Menkara et al.
patent: 7227190 (2007-06-01), Yasukawa et al.
patent: 7268492 (2007-09-01), Tanaka et al.
patent: 7391060 (2008-06-01), Oshio
patent: 2001/0015443 (2001-08-01), Komoto et al.
patent: 2002/0063301 (2002-05-01), Hanamoto et al.
patent: 0 933 823 (1999-08-01), None
patent: 1208594 (1970-10-01), None
patent: WO 97/48138 (1997-12-01), None
patent: WO 98/12757 (1998-03-01), None
patent: WO 98-39805 (1998-09-01), None
patent: WO 98/39807 (1998-09-01), None
patent: WO 00/19546 (2000-04-01), None
patent: WO 00/32982 (2000-06-01), None
patent: WO 00/32982 (2000-06-01), None
patent: WO 00/33389 (2000-06-01), None
patent: WO 00/33389 (2000-06-01), None
patent: WO 00/33390 (2000-06-01), None
Sato, et al., “Full-Color Fluorescent Display Devices Using a Near-UV Light-Emitting Diode”,Jpn. J. Appl. Phys, vol. 35 (1996) pp. L 838-L 839, XP -000733074.
Poort et al, “Optical Properties of EU2+-activated orthosilicates and orthophosphates,” Journal of Alloys and Compounds 260 (1997) 93-97.

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