Device for generating an optical collimating beam

Details Device for generating an optical collimating beam Device for generating an optical collimating beam

G - Physics

02

B

33/53

G02B 23/10 (2006.01) G01B 11/30 (2006.01) G02B 27/30 (2006.01)

Patent

CA 1217335

ABSTRACT OF THE DISCLOSURE: A device for generating an optical collimating beam which is so configured that it withstands extreme mechani- cal and thermal stresses and the collimating beam always has a precisely defined angle with respect to the base that sup- ports the device. The device includes a single-lens objective having a surface upon which the collimating mark is arranged which is imaged at infinity by the objective. The objective is made of transparent material having a linear temperature coefficient of expansion < 10-6 K-1. It is held in a metal housing in a form-tight manner via a thin layer of permanently elastic material surrounding the peripheral surface of the lens. The housing itself is connected form-tight and force- tight with the base. The connection is protected against shock and vibrational stress.

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