Cassidian Test & Services

Eads Test and Services

Spherea Test & Services

Pierre Lecoq

Vincent Petit

Emmanuelle Pitte

Franck Delsol

Claude Fouque

This optical system includes: a device () for generating a plane light wave, called a collimated light wave (OL); and a device () for deviating the collimated light wave so as to provide a light wave, called a test light wave (OL), the deviating device () having an adjustable focal length.

Optical device, optical test bench and optical test method

Optical measuring apparatus

The collimated test object according to the invention is used for projecting to infinity a set of marks, the positions of which are very accurately known so as to be able to verify the alignment and/or the distortion of optical equipment such as sensors or collimated screens. This test object comprises a plurality of microcollimated sets, each comprising a light source, an elementary test object comprising a mark illuminated by the source as well as a collimation lens for projecting the mark to infinity. With this solution, one gets free of aberration problems to which are subject convention test objects of large dimensions.

Test object used for projecting a set of marks to infinity

Growing community of inventors

Chaville, France

Pierre Lecoq