Lighting device and display device provided with the same

Details Lighting device and display device provided with the same Lighting device and display device provided with the same

2008-01-30

2010-10-26

Patel, Ashok (Department: 2889)

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

C313S487000, C313S112000, C362S084000, C362S260000, C362S028000, C362S293000

Reexamination Certificate

active

07821188

ABSTRACT:
To provide a lighting device capable of a substantial color adjustment and unlimited control of spectral components, a lighting device of the present invention puts a first transparent plate in which a phosphor layer dispersed with a first phosphor is formed in places and a second transparent plate in which a phosphor layer dispersed with a second phosphor is formed in places in a path of light from a light source, and stacks the first transparent plate and the second transparent plate on top of each other. The second phosphor differs from the first phosphor. How much in terms of area the phosphor layers overlap with each other is made variable, and the color tone of the lighting device can thus be controlled. The lighting device uses a blue light source as its light source, a green phosphor as the first phosphor, and a red phosphor as the second phosphor. An intended chromaticity can be obtained by varying how much in terms of area the green phosphor layer and the red phosphor layer overlap with each other and thereby adjusting the green light absorption amount of the red phosphor.

REFERENCES:
patent: 3569761 (1971-03-01), Lange
patent: 2006/0244367 (2006-11-01), Im et al.
patent: 2008/0303407 (2008-12-01), Brunner et al.

Affiliated with

Also associated with

Rating

Lighting device and display device provided with the same does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4178074