Process and device for the production of a telecentric light bea

Details Process and device for the production of a telecentric light bea Process and device for the production of a telecentric light bea

1982-05-24

1984-04-24

Corbin, John K.

Optics: measuring and testing

Range or remote distance finding

With photodetection

356387, G02B 2717

Patent

active

044444575

ABSTRACT:
In a device for the production of a telecentric light beam which is to be deflected over a defined region an incident light beam impinges upon a rotating plane mirror. The light beam reflected thereby reaches the outlet of the device by way of a further co-rotating parallel plane mirror as a telecentric light beam. There is thus obtained by simple optical means a deflection over a region which is considerable in comparison with the dimensions of the device, and the shifting of the deflected light beam occurs according to a simple mathematical function, more especially a sine function. This simple mathematical relationship of a rotary angle and a displacement of the light beam enables an especially simple evaluation of measurement data.

REFERENCES:
patent: 3829220 (1974-08-01), Parkinson
patent: 4264141 (1981-04-01), Guers et al.
patent: 4402575 (1983-09-01), Jacobs

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