Optics: measuring and testing – Of light reflection – With diffusion
Patent
1978-11-06
1981-11-10
Corbin, John K.
Optics: measuring and testing
Of light reflection
With diffusion
250224, 250561, 340524, 340686, 356447, 414274, B65G 4300, G01S 1708
Patent
active
042994969
ABSTRACT:
A storage rack entry vehicle for transporting loads in a warehousing system includes infrared radiation source and detector units which determine the relative position of the vehicle and load. The optical axes of the source and detector are parallel and closely-spaced. When infrared radiation from the source is scattered by the load (or a pallet carrying the load), some of the radiation is reflected back to the detector along a path substantially parallel to the optical axes. The maximum range of detection is controlled by adjusting the gain of an amplifier which forms part of the detector.
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Arnold Bruce Y.
Corbin John K.
Interlake, Inc.
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