Patent
1984-02-28
1987-11-03
Arnold, Bruce Y.
350252, 350566, G02B 1700
Patent
active
047040106
ABSTRACT:
The invention is directed to a device for generating an optical collimating beam. The device is so configured that it withstands extreme mechanical and thermal stresses and that the collimating beam is always at a precisely defined angle with respect to the base that supports the device. The device includes a single-lens objective having a first optical surface upon which the collimating mark is arranged which the objective images at infinity. The objective is made of transparent material having a linear temperature coefficient of expansion of less than 10.sup.-6 K.sup.-1. The objective is held in a metal housing in a form-tight manner and a thin layer surrounding the peripheral surface of the lens is disposed between the objective and the metal housing. This layer is made of an elastic material which is permanently elastic. The housing is connected form-tight and lock-tight with the base. The attachment is protected against shock and vibrational stress.
REFERENCES:
patent: 2423492 (1947-07-01), Fairbank
patent: 2656761 (1953-10-01), Blaisse
patent: 3362074 (1968-01-01), Luebkeman et al.
Renner Werner
Stana Hans
Arnold Bruce Y.
Carl-Zeiss-Stiftung
Dzierzynski P. M.
Ottesen Walter
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