Illumination – Self powered lamp – Cylindrical flashlight casing
Reexamination Certificate
2008-07-01
2008-07-01
Negron, Ismael (Department: 2885)
Illumination
Self powered lamp
Cylindrical flashlight casing
C362S157000, C362S184000, C362S800000, C362S802000, C315S127000
Reexamination Certificate
active
11674143
ABSTRACT:
An illumination source includes a plurality of LEDs, and an electrical circuit that selectively applies power from the DC voltage source to the LED units, wherein the illumination source is suitable for handheld portable operation. In some embodiments, the electrical circuit further includes a control circuit for driving the LEDs with electrical pulses at a frequency high enough that light produced has an appearance to a human user of being continuous rather than pulsed, the control circuit changing a pulse characteristic to adjust a proportion of light output having the first characteristic color spectrum output to that having the second characteristic color spectrum output. Some embodiments provide an illumination source including a housing including one or more LEDs; and a control circuit that selectively applies power from a source of electric power to the LEDs, thus controlling a light output color spectrum of the LEDs.
REFERENCES:
patent: 1445245 (1923-02-01), Staples
patent: 3001185 (1961-09-01), Cleek
patent: 3693060 (1972-09-01), Joyce
patent: 3902806 (1975-09-01), Bober
patent: 4068148 (1978-01-01), Nomiya et al.
patent: 4139348 (1979-02-01), Swartz
patent: 4208579 (1980-06-01), Scrivo et al.
patent: 4212073 (1980-07-01), Balasubramanian
patent: 4290095 (1981-09-01), Schmidt
patent: 4346329 (1982-08-01), Schmidt
patent: 4347499 (1982-08-01), Burkman, Sr. et al.
patent: 4403157 (1983-09-01), Guajardo et al.
patent: 4447150 (1984-05-01), Heinemann
patent: 4509266 (1985-04-01), Cusack
patent: 4592147 (1986-06-01), Herman
patent: 4641972 (1987-02-01), Halioua et al.
patent: 4644342 (1987-02-01), Abbas
patent: 4748350 (1988-05-01), Emori
patent: 4820229 (1989-04-01), Spraggins
patent: 4831504 (1989-05-01), Nishizawa et al.
patent: 4845481 (1989-07-01), Havel
patent: 4882498 (1989-11-01), Cochran et al.
patent: 4893815 (1990-01-01), Rowan
patent: 4914289 (1990-04-01), Nguyen et al.
patent: 4962347 (1990-10-01), Burroughs et al.
patent: 4964023 (1990-10-01), Nishizawa et al.
patent: 4965665 (1990-10-01), Amir
patent: 4972093 (1990-11-01), Cochran et al.
patent: 4978857 (1990-12-01), Juengel
patent: 5008788 (1991-04-01), Palinkas
patent: 5010412 (1991-04-01), Garriss
patent: 5015918 (1991-05-01), Copeland
patent: 5051825 (1991-09-01), Cochran et al.
patent: 5065035 (1991-11-01), Juengel
patent: 5072127 (1991-12-01), Cochran et al.
patent: 5099139 (1992-03-01), Nishimura
patent: 5172005 (1992-12-01), Cochran et al.
patent: 5179335 (1993-01-01), Nor
patent: 5279513 (1994-01-01), Connelly
patent: 5299227 (1994-03-01), Rose
patent: 5355221 (1994-10-01), Cohen et al.
patent: 5398113 (1995-03-01), de Groot
patent: 5424927 (1995-06-01), Schaller et al.
patent: 5563703 (1996-10-01), Lebeau et al.
patent: 5646733 (1997-07-01), Bieman
patent: 5745176 (1998-04-01), Lebens
patent: 5815018 (1998-09-01), Soborski
patent: 5838247 (1998-11-01), Bladowski
patent: 5890794 (1999-04-01), Abtahi et al.
patent: 6016038 (2000-01-01), Mueller et al.
patent: 6095661 (2000-08-01), Lebens et al.
Abbas, Daniel C. , “0.5-MHz bandwidth, voltage-programmable current source for light-emitting-diode testing ”, “Rev. Sci. Instrum.”, Jan. 1981, pp. 123-126, vol. 52, No. 1.
Bains, Sunny ,“Advanced said to hold promise for wavelength-division multiplexing--Device steers white light through wide angles”, “http://www.techweb.com/se/directlink.cgi? EE Times (Issue 1060)”, May 10, 1999, vol. 1060.
Bains, Sunny, “Device steers white light through wide angles”, “EE Times”, 1999, pp. 1-2.
Chung, Jeremy K., etal , “A high-performance LED array driver ASIC with programmable thermal coefficients ”, “ASIC Conference and Exhibit, 1991. Proceedings., Fourth Annual IEEE International, Sep. 23, 1991-Sep. 27, 1991, Rochester, NY”, 1991, pp. P5-4.1-P5-4.2.
Deforges, J, etal , “Light source with light emitting diodes. Determination of limited frequencies and of the crest factor of illuminance met”, “J. Optics (Paris)”, 1989, pp. 205-217, vol. 20, No. 5.
Edmund Scientific Company, “Edmund Scientific Company catalog p. 47”, “Edmund Scientific Company 1993 Annual Referencing Catalog, Cylinder Lenses (CYL)”, , Page(s) catalog p. 47.
, “Hewlett Packard Optotronics Designer's Catalog, Technical Data entitled High power AllnGalp Amber and Reddish-Orange Lam”, “Hewlett Packard Optotronics Designer's Catalog”, 1993, pp. 3-24 thru 3-29.
Kobayashi, M, etal , “Wide-band suppression of photon-number fluctuations in a high-speed light-emitting diode driven by a constant-current so”, “Appl. Phys. Lett., ”, Jan. 19, 1998, pp. 284-286, vol. 72, No. 3.
Schubert, E F., etal , “15000 hrs stable operation of resonant cavity light emitting diodes”, “Applied Physics A (Materials Science Processing),”, 1998, pp. 319-321, vol. A66, No. 3.
Sumitomo, H., etal , “Wideband and deep penetration of photon-number fluctuations into quantum regime in series-connected light-emitting diode”, “International Quantum Electronics Conference. Technical Digest Series, vol. 7(IEEE Cat. No.98CH36236)”, 1998, pp. 169-170, vol. 7.
Wada, O, etal , “Monolithic integration of an AlGaAs/GaAs DH LED with a GaAs FET driver”, “IEEE Electron Device Letters”, , vol. EDL-3, No. 10, 1982.
Wada, N, etal , “Stable operation of AlGaAs/GaAs light-emitting diodes fabricated on Si Substrate”, “Jpn. J. Appl. Phys.”, Feb. 1992, pp. L78-L81, vol. 31.
Bourn Charles T.
Lebens Gary A.
Lemaire Charles A.
Lemaire Charles A.
Lemaire Charles A.
Lemaire Patent Law Firm, P.L.L.C.
Negron Ismael
LandOfFree
Method and apparatus for constant light output pulsed L.E.D.... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for constant light output pulsed L.E.D...., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for constant light output pulsed L.E.D.... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3944755