Distance measuring equipment for a car

Details Distance measuring equipment for a car Distance measuring equipment for a car

1991-09-27

1992-11-03

Hellner, Mark

Optics: measuring and testing

Range or remote distance finding

With photodetection

342 72, G01N 2100

Patent

active

051609711

ABSTRACT:
Distance measuring equipment for a car arranged such that a wiper is driven only when a light reflection condition of a non-reflecting protective glass is detected with the light input/output to the glass. Additionally, it can be arranged such that the measuring operation is interrupted only when a driving angle of the wiper resides in a predetermined measuring angle range on the protective glass.

REFERENCES:
patent: 4757450 (1988-07-01), Etoh
patent: 4867561 (1989-09-01), Fujii et al.
patent: 4931767 (1990-06-01), Albrecht et al.

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