Led exposure head

Details Led exposure head Led exposure head

1992-03-06

1994-02-08

Fuller, Benjamin R.

Recorders

Light or beam recording

Including record receiver or handling means therefor

346139R, G01D 1514

Patent

active

052852172

ABSTRACT:
A LED exposure head for use in a recording device for linewise recording information on a moving photoconductor, which comprises a metal base plate (38) onto which are mounted a row of LED dice (39) along the centre, rows of integrated circuit chips (41, 42) and printed circuit boards (43, 44) outside of such rows of integrated circuit chips, and optical imaging means (30) for focussing the image of the LEDS in the image plane of the photoconductor. The base plate has a raised rib (52) for mounting the LED dice at a height above the base which is such that their electric bonding pads (53, 54) are at a level above that of the corresponding bonding pads (55, 56) of the integrated circuit chips (41, 42).

REFERENCES:
patent: 4506272 (1985-03-01), Arai
patent: 4536778 (1985-08-01), De Schamphelaere et al.
patent: 4829321 (1989-05-01), Iizuka et al.
patent: 4875057 (1989-10-01), Hediger et al.
patent: 4896168 (1990-01-01), Newman et al.
patent: 4907034 (1990-03-01), Doi et al.
patent: 4929965 (1990-05-01), Fuse

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