Method of mounting filters on image sensors

Details Method of mounting filters on image sensors Method of mounting filters on image sensors

1996-04-16

1998-05-12

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

2502081, 257432, 437 3, G01J 350

Patent

active

057509824

ABSTRACT:
An image sensor sandwich having a linear sensor and a color filter is created that has the spacing between the sensor and the filter controlled to a very high tolerance by controlling the diameter of the glass beads within a mixture that is placed between the filter and the sensor. The mixture provides a simple, quick and economical spacing device that can be cured with few tools and requiring little time. The method and apparatus of mounting filters on sensors, comprises: providing upon select predetermined areas of a sensor a mixture of an ultraviolet curable resin and glass beads, the glass beads having an essentially uniform diameter, and further providing a light filter upon the sensor and the mixture such that the filter remains at a fixed height above the sensor, the fixed height being determined by the essentially uniform diameters of the glass beads; providing an ultraviolet light; and curing the mixture between the sensor and the filter with the ultra violet light.

REFERENCES:
patent: 4388525 (1983-06-01), Phy
patent: 5229595 (1993-07-01), Mikkelsen, Jr. et al.
patent: 5300767 (1994-04-01), Steinle et al.

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