Optical luminescent display device

Details Optical luminescent display device Optical luminescent display device

2005-03-01

2005-03-01

Ullah, Akm Enayet (Department: 2874)

Optical waveguides

With optical coupler

Input/output coupler

C385S047000, C385S901000

Reexamination Certificate

active

06862382

ABSTRACT:
A luminescent material, such as phosphor, is radiated by energy propagated from the side of an optical fiber, causing the luminescent material to emit visible light The luminescent material can be of a coincidentally-excited type, requiring the absorption of two wavelengths of radiation to emit visible light. In such a case, two side-emitting optical fibers can be used, with each optical fiber providing one of the needed radiation wavelengths. One embodiment of the invention involves a matrix of optical fibers forming an optical display panel made using coincidentally-excited phosphors. Side-emitting optical fibers are used to simultaneously stimulate a phosphor pixel located between the two fibers, allowing matrix addressing of each pixel individually. The optical display panel is constructed of only optical components. Another embodiment involves an optical switch with coincidentally-excited luminescent material. One radiation is provided by a side-emitting optical fiber. To activate the switch, a second radiation is provided by a laser diode.

REFERENCES:
patent: 4047033 (1977-09-01), Malmberg et al.
patent: 4231640 (1980-11-01), Funada et al.
patent: 4335936 (1982-06-01), Nonomura et al.
patent: 4346961 (1982-08-01), Porter
patent: 4833542 (1989-05-01), Hara et al.
patent: 5037172 (1991-08-01), Hekman et al.
patent: 5432876 (1995-07-01), Appeldorn et al.
patent: 5659643 (1997-08-01), Appeldorn et al.
patent: 5673344 (1997-09-01), Li et al.
patent: 5757989 (1998-05-01), Yoshimura et al.
patent: 5835173 (1998-11-01), Inbar et al.
patent: 6307987 (2001-10-01), Wang et al.
patent: 21308 (1981-01-01), None
patent: 0507447 (1992-10-01), None
patent: 0533236 (1993-03-01), None
patent: 533236 (1993-03-01), None
patent: 0594089 (1994-04-01), None
patent: WO 9002349 (1990-03-01), None
patent: WO 9527920 (1995-10-01), None
patent: 9527920 (1995-10-01), None
patent: WO 9527920 (1995-10-01), None
patent: WO 0021308 a1 (2000-04-01), None
J. Gasiot et al., Nanosecond Infrared Laser Stimulation of Luminescence in Rate-Earth Doped Sulfides, App. Phys. Lett., vol. 40, No. 5 (Mar. 1982) pp376-378.
D.T. Brower, I.K. Lloyd, Investigation of the Effect of Host Composition on the Photoluminescent Properties of Sr/sub xc Ba/sub 1−x/S Doped With Eu and Sm, Journal of Materials Research vol. 10, No. 1, p. 211-15.
“Phosphor Handbook,”Phosphor Research Society, Shigeo Shionoya et al. Ed., pp. 224-225.
V.V. Motur, V.I. Zimenko, “Luminescence Characteristics of the Materials for theDevices Representation of Information”, SPIE—vol. 2949, p. 88-92.

Affiliated with

Also associated with

Rating

Optical luminescent display device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical luminescent display device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical luminescent display device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3414846