Patent US3764934A successfully refreshed from Google Patents.
US3764934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laser apparatus and mirror adjustment mechanism therefor
Assignee: Osram GmbH
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Filing: 1972-03-06
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Granted: 1973-10-09
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Expires: 1992-03-06
Abstract
Abstract Laser with an optical resonator composed of two or more mirrors. At least one mirror is adjustable. The apparatus for fine adjustment of the mirrors comprises a suspension for the mirror which includes a pair of planar link arrangements, each having four joints, the links essentially forming a hinged, or jointed trapeze. Oppositely located links are inclined at an angle different from zero to one another. The link arrangement is manufactured, for example, from a spring plate, the joints being resiliently bendable. One parallel side of the trapeze carries the mirror. Adjusting screws adjust the alignment of pre-stressed flaps or tongues of the spring plate which form the oppositely located links. The mirror is adjustable through small angles in two mutually perpendicular planes.
Inventors
- 👤 H Schamberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:26
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/05; H01S3/08; H01S3/086
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
66 words
Laser apparatus having a medium subject to stimulated emission, and an optical resonator including at least one mirror, an adjustable means holding the mirror in adjustment position in space, said adjustable holding means comprising a four-joint suspension including four connecting junctions interconnected by crank arms and link arms, corresponding crank arms being co-planar and oriented with respect to each other by an angle differing from zero.
Claim 2
Dependent Claim
66 words
Laser apparatus having a medium subject to stimulated emission, and an optical resonator including at least one mirror, an adjustable means holding the mirror in adjustment position in space, said adjustable holding means comprising a four-joint suspension including four connecting junctions interconnected by crank arms and link arms, corresponding crank arms being co-planar and oriented with respect to each other by an angle differing from zero.
Claim 3
Dependent Claim
21 words
Apparatus according to claim 1, comprising a pair of four-joint suspensions, arranged with respect to each other offset by about 90*.
Claim 4
Dependent Claim
31 words
Apparatus according to claim 1, wherein one of the link arms interconnecting the crank arms of the four-joint suspension is formed by a mirror socket in which the mirror is retained.
Claim 5
Dependent Claim
19 words
Apparatus according to claim 2, wherein both four-joint suspensions have an element defining one of the link arms. against
Claim 6
Dependent Claim
74 words
Apparatus according to claim 1, wherein the four-joint suspension includes four arms, located in approximately trapezoidal planar arrangement, the inclined arms of the trapeze forming crank arms which include a small angle so that, upon application of force against a corner point of the trapeze, the imaginary pivot point of pivoting is spaced from the trapeze by a distance greater than the distance between the crank arms formed by the sides of the trapeze.
Claim 7
Dependent Claim
16 words
Apparatus according to claim 5, wherein said small angle is in the order of about 7*.
Claim 8
Dependent Claim
32 words
Apparatus according to claim 5, including an adjustment screw (25, 26) bearing against the crank arm of the trapeze, to adjust the position of the four-joint suspension and hence of the mirror.
Claim 9
Dependent Claim
18 words
Apparatus according to claim 1, wherein the joints of the four-point suspensions are formed as bent spring joints.
Claim 10
Dependent Claim
37 words
Apparatus according to claim 1, wherein the four-joint suspension is formed by an element of springy, resilient material in sheet form, having bent-over flaps, the junction between the bent-over flaps and the element forming a movable joint.
Claim 11
Dependent Claim
25 words
Apparatus according to claim 9, wherein the free ends of the flaps are pre-stressed to provide for resilient counter force upon deflection of the flaps.
Claim 12
Dependent Claim
36 words
Apparatus according to claim 5, wherein the four-joint suspension comprises an element of resilient, springy material having bent-over ends forming flaps, and the flaps forming said crank arms are located at the sides of the trapeze.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-08 | 1977-04-09 | 1977-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-08 | 1981-04-09 | 1981-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-08 | 1985-04-09 | 1985-10-09 | $7700.00 | Window Closed / Lapsed |