Mirror Translation apparatus for altering focal point position in a laser
Patent
·
OSTI ID:6857869
This patent describes a method for tuning a dye laser including an excitation beam, a dye jet and a mirror having a curved surface and a focal point. It comprises: locating a pivot point at a relatively large distance from the mirror; positioning the mirror in a location so as to intersect the excitation beam at an angle at a variable intersection point on the curved surface and to position the focal point in a region within the dye jet; mounting the mirror at the location by means of a mirror support arm rotatably supported at the pivot point; and pivoting the mirror about the pivot point by movement of the arm for varying the intersection point so as to move the focal point, with variations in the intersection point being compensated by changes in the angle of intersection of the excitation beam with the curved surface such that the focal point is translated along a substantially straight line within the dye jet when the mirror is pivoted about the pivot point.
- Assignee:
- Spectra Physics, Inc., San Jose, CA
- Patent Number(s):
- A; US 4897847
- Application Number:
- PPN: US 7103009A
- OSTI ID:
- 6857869
- Country of Publication:
- United States
- Language:
- English
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