Device for the production of a telecentric light beam and a...

Details Device for the production of a telecentric light beam and a... Device for the production of a telecentric light beam and a...

G - Physics

02

B

343/4

G02B 5/09 (2006.01)

Patent

CA 1175129

Title of the Invention A DEVICE FOR THE PRODUCTION OF A TELECENTRIC LIGHT BEAM AND A PROCESS FOR USE THEREOF ABSTRACT OF THE DISCLOSURE 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-rota- ting 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.

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