Patent ID: 9459459
Filing Date: 2016-10-04
CPC Classification: G01J,G01M,G02B

Claim Text:
1. A method for reducing the dimensions of an incident light beam of large dimensions, comprising: dispatching of a first collimated light beam, of large dimensions, toward a partially reflecting plate of dimensions suitable for the dimensions of the light beam of large dimensions; dispatching onto a convergent reflective element of a second light beam arising from the reflection on the partially reflecting plate or from the transmission through the partially reflecting plate, of the first light beam; dispatching of a third light beam arising from the reflection on the convergent reflective element of the second light beam, toward said partially reflecting plate; and transmission of the third beam through the partially reflecting plate when the second beam arises from the reflection on the partially reflecting plate, or the reflection of the third beam on the partially reflecting plate when the second beam arises from the transmission through the partially reflecting plate, so as to form a fourth light beam.