Electrically controllable color conversion cell

Details Electrically controllable color conversion cell Electrically controllable color conversion cell

2005-04-06

2009-08-18

Santiago, Mariceli (Department: 2879)

Electric lamp and discharge devices

With optical device or special ray transmissive envelope

C313S111000, C313S112000, C349S164000, C349S165000, C349S079000, C349S115000

Reexamination Certificate

active

07576478

ABSTRACT:
The invention relates to light emitting devices (2) with variable output color. More specifically, the inventions provides a color conversion cell (10) which can be positioned in front of a light source (4) in order to generate other color or color temperatures. Typically the light source is a light emitting diode (LED) which is power efficient but emits in a narrow and fixed spectra. The new colors are generated by photoluminescence in fluorescent dyes contained in the cell. The color converting of the cell is electrically controllable, preferably by controlling the orientation, density or distribution of the fluorescent dyes, or by controlling a pathlength of the light in the cell.

REFERENCES:
patent: 3960753 (1976-06-01), Larrabee
patent: 4416515 (1983-11-01), Funada et al.
patent: 5745203 (1998-04-01), Valliath et al.
patent: 5762823 (1998-06-01), Hikmet
patent: 6211931 (2001-04-01), Fukao et al.
patent: 6252254 (2001-06-01), Soules et al.
patent: 6357889 (2002-03-01), Duggal et al.
patent: 2002/0158565 (2002-10-01), Setlur et al.
patent: 2004/0150613 (2004-08-01), Li et al.
patent: 2005/0104804 (2005-05-01), Feenstra et al.
patent: 09258272 (1997-10-01), None
patent: 10206850 (1998-08-01), None
patent: 2001343671 (2001-12-01), None
patent: 2002116325 (2002-04-01), None
patent: 9854030 (1998-12-01), None
patent: 0033390 (2000-06-01), None
patent: 0136864 (2001-05-01), None
R.A. Hayes et al; “Video-Speed Electronic Paper Based on Electrowetting”, Nature, vol. 425, 2003, pp. 383-385, XP002333600.

Affiliated with

Also associated with

Rating

Electrically controllable color conversion cell does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electrically controllable color conversion cell, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrically controllable color conversion cell will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4124183