Mounting structure for electro-optical devices

Details Mounting structure for electro-optical devices Mounting structure for electro-optical devices

1993-06-25

1994-10-18

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

250239, H01J 4014

Patent

active

053570987

ABSTRACT:
A scanning head is provided suitable for scanning large-size documents including a plurality of contact type CCDs staggered on a common substrate with overlapping end portions, so that their sensitivity ranges are adjoined to one another, adjacent ends of two CCDs being fixed on the substrate by stops, and the opposite ends of these CCDs being elastically supported to allow for thermal expansion or contraction, there being interposed between the first CCD and the third CCD, a spacer which has a thermal expansion coefficient comparable to that of the CCDs, so that the sensitivity ranges of the second and third CCDs are matched to one another, irrespective of the expansion or contraction of the second CCD.

REFERENCES:
patent: 4999484 (1991-03-01), Kaneko
patent: 5063286 (1991-11-01), Kaneko

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