Laser diode collimating system
First Claim
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1. A laser diode collimating system comprising a collimating lens for receiving a laser beam from a laser diode in use;
- first and second orthogonally arranged cylindrical lenses through which the laser beam passes, the lenses being positioned so as to have a substantially common focal plane and to operate substantially independently on the laser beam in its fast axis and slow axis directions respectively so as to bring the laser beam in both the fast axis and slow axis directions to a focus in a substantially common plane; and
a convex lens through which the beam passes, the convex lens having a focus lying in the said common focal plane.
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Abstract
A laser diode collimating system comprises a collimating lens for receiving a laser beam from a laser diode LD. First and second orthogonally arranged cylindrical lenses are provided through which the laser beam passes. The cylindrical lenses are positioned so as to have a substantially common focal plane and operate substantially independently on the divergence and/or convergence of the laser beam in its fast axis and slow axis directions respectively. A convex lens, through which the beam passes, has a focus lying in the said common focal plane.
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11 Claims
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1. A laser diode collimating system comprising a collimating lens for receiving a laser beam from a laser diode in use;
- first and second orthogonally arranged cylindrical lenses through which the laser beam passes, the lenses being positioned so as to have a substantially common focal plane and to operate substantially independently on the laser beam in its fast axis and slow axis directions respectively so as to bring the laser beam in both the fast axis and slow axis directions to a focus in a substantially common plane; and
a convex lens through which the beam passes, the convex lens having a focus lying in the said common focal plane. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
- first and second orthogonally arranged cylindrical lenses through which the laser beam passes, the lenses being positioned so as to have a substantially common focal plane and to operate substantially independently on the laser beam in its fast axis and slow axis directions respectively so as to bring the laser beam in both the fast axis and slow axis directions to a focus in a substantially common plane; and
Specification