Apparatus and methods relating to precision control of...

Details Apparatus and methods relating to precision control of... Apparatus and methods relating to precision control of...

G - Physics

02

B

G02B 23/00 (2006.01)

Patent

CA 2581660

Illumination exposure control systems comprising reflective pixelated spatial light modulators that reflect substantially all of the light impinging on them into at least two different light paths. At least one of the light paths acts as a propagating light path and transmits the light beam out of the lighting system. At least one other light path acts as a non-propagating light path and prevents the light beam from being transmitted out the system. The illumination exposure control systems provide high speed of exposure actuation and precision control of exposure duration and frequency or exposure sequences.

L'invention concerne des systèmes de commande d'exposition à un éclairement qui comprennent des modulateurs de lumière spatiale pixélisée réfléchissants, qui réfléchissent pratiquement toute la lumière qu'ils reçoivent sur au moins deux trajets lumineux différents. Au moins un des trajets lumineux sert de trajet de propagation et transmet le faisceau lumineux hors du système d'éclairage. Au moins un autre trajet lumineux sert de trajet ne propageant pas la lumière et empêche le faisceau lumineux de sortir du système. Ces systèmes de commande d'exposition à un éclairement présentent une commande d'exposition à grande vitesse et permettent de commander précisément la durée d'exposition et la fréquence des séquences d'exposition.

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