Electric lamp and discharge devices – With luminescent solid or liquid material – Solid-state type
Patent
1987-04-06
1989-03-21
Boudreau, Leo H.
Electric lamp and discharge devices
With luminescent solid or liquid material
Solid-state type
362800, 362252, 355 3R, 355 67, 355 70, 313512, H01L 3300
Patent
active
048146676
ABSTRACT:
This invention provides a light emitter for generating light having a predetermined effective level of illuminance distribution over a defined region of a given size. The light emitter comprises a light emitting diode having a specified overall length for generating the predetermined effective level of illuminance distribution, including a central array of LED chips equally spaced from each other at a first interval, an end array of LED chips equally spaced from each other at a second interval smaller than the first interval. The light emitter also comprises a gap where there are no chips, the gap being larger than the first interval between the central array and the end array for alternatively maintaining the predetermined effective level of illuminance distribution and increasing the size of the defined region, and maintaining the size of the defined region and decreasing the overall length of the diode. The light emitter comprises a circuit board for supporting the light emitting diode.
REFERENCES:
patent: 4255042 (1981-03-01), Armitage, Jr. et al.
patent: 4284884 (1981-08-01), Dyment et al.
patent: 4344691 (1982-08-01), Grant et al.
patent: 4435064 (1984-03-01), Tsukada et al.
patent: 4462662 (1984-07-01), Lama
patent: 4576464 (1986-03-01), Sakata et al.
patent: 4605943 (1986-08-01), Nakamura et al.
patent: 4630180 (1986-12-01), Muraki et al.
patent: 4641944 (1987-02-01), Honda et al.
patent: 4721977 (1988-01-01), Fukae
patent: 4728982 (1988-03-01), Takemura
patent: 4734734 (1988-03-01), Yano
Physics of Semiconductor Devices, pp. 759-763 and pp. 398-402, (2d Ed.).
Boudreau Leo H.
Kabushiki Kaisha Toshiba
Powell Mark R.
LandOfFree
Light emitting diode array having uniform illuminance distributi does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Light emitting diode array having uniform illuminance distributi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Light emitting diode array having uniform illuminance distributi will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-479378