Optical system which provides a collimated light beam

Details Optical system which provides a collimated light beam Optical system which provides a collimated light beam

1981-10-28

1984-02-14

Punter, William H.

350245, 350252, G02B 702

Patent

active

044312679

ABSTRACT:
An optical system which provides a collimated light beam, having a tubular holder, a semiconductor laser and a system of lenses incorporated in the holder, in which the semiconductor laser is positioned against an abutment in the axial direction of the holder and a resilient element is placed between the system of lenses and the abutment, while on the side of the system of lenses remote from the resilient element a locking element is present which, after axial adjustment in the holder, is fixed in such a location that the system of lenses, after moving in the axial direction against the pressure of the resilient element, is in the position in which its focus coincides with the laser element in the semiconductor laser.

REFERENCES:
patent: 870535 (1907-11-01), Bausch
patent: 3220309 (1965-11-01), Wohler
patent: 3351408 (1967-11-01), Krewalk
patent: 3763543 (1973-10-01), Strauch et al.
patent: 4203652 (1980-05-01), Hanada
Habegger, M. A., "Mounting Unit for Laser Cavity", IBM Tech. Disc. Bull., 3-1968, pp. 1509-1510.

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