Surface sensor device

Details Surface sensor device Surface sensor device

1996-07-29

1998-03-24

Glick, Edward J.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

2503412, G01J 508

Patent

active

057315825

ABSTRACT:
A surface sensor device (1) with an electromagnetic radiation emitter (3) and a radiation detector (2) disposed on opposite sides of an instrument outlet (6), which instrument outlet (6) is required to be placed in close proximity to a surface (30). The surface sensor (1) also having a member (8) disposed in the path of the emitted radiation and the radiation reflected from the surface (30). The member (8) allows a portion of the emitted radiation to pass within it from the emitter (3) to the detector (2) while providing a path for a further portion of the radiation to pass through the member (8) towards the surface (30) for scattering and reflection by which means light is returned to the member (8) back towards the detector (2).

REFERENCES:
patent: 5139339 (1992-08-01), Courtney et al.

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