Optical fiber tactile sensor

Details Optical fiber tactile sensor Optical fiber tactile sensor

1980-11-25

1983-09-20

Lee, John D.

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

3 11, 73432T, 250227, 350 9610, G02B 514, A61F 100

Patent

active

044051972

ABSTRACT:
A tactile sensor comprises an array of cells which are covered by an elastic membrane, having an exposed surface which is adapted to come in contact with an object. Light is conducted to each cell from a light source by an optical fiber which terminates at the cell. Reflected light from the cell is conducted by an optical fiber to a light processor, which senses changes in the light received thereby from an ambient level whenever an object comes in contact with the membrane surface above the cell.

REFERENCES:
patent: 3374762 (1968-03-01), Baldwin
patent: 3509583 (1970-05-01), Fraioli
patent: 3751733 (1973-08-01), Fletcher et al.
patent: 3786238 (1974-01-01), Heisner
patent: 3937952 (1976-02-01), Ripley et al.
patent: 4249076 (1981-02-01), Bergstrom et al.
patent: 4254333 (1981-03-01), Bergstrom
patent: 4329581 (1982-05-01), Helfrich, Jr. et al.
Sharp et al., "Optical Keyboard," IBM Tech. Discl. Bull., vol. 5, No. 10, Mar. 1963, p. 127.
Uberbacher, "Fiber Optic Illuminated Switch," IBM Tech. Discl. Bull., vol. 18, No. 2, Jul. 1975, p. 483.
Cummings, "Transparent Keyless Keyboard for Variable Terminal Applications," IBM Tech. Discl. Bull., vol. 20, No. 4, Sep. 1977, pp. 1609-1611.

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