US5237457A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for adjusting an optical axis including a laser beam source and a beam shaping prism
Assignee: Pentax Corp
•
Filing: 1991-10-03
•
Granted: 1993-08-17
•
Expires: 2011-10-03
Abstract
Abstract An optical axis adjusting apparatus is provided and includes a laser beam source, a beam shaping prism for shaping a laser beam of elliptical flux emitted from the laser beam source into a laser beam of circular flux, and an angle adjusting device which adjusts the angular direction of the outgoing laser beam emitted from the shaping prism.
Inventors
- 👤 Masahiro Oono
- 👤 Koichi Maruyama
- 👤 Makoto Iki
- 👤 Hitoshi Kimura
- 👤 Masahiko Sasaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:48
CPC Classifications
G; G02; G02B; G02B19/00; G02B19/0004; G02B19/0009; G02B19/0033; G02B19/0047; G02B19/0052; G02B26/00; G02B26/08; G02B26/0875; G02B26/0883; G02B27/00; G02B27/09; G02B27/0938; G02B27/095; G02B27/0972; G02B7/00; G02B7/18; G02B7/1805; G11; G11B; G11B7/00; G11B7/12; G11B7/135; G11B7/1398; G11B7/22
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
91 words
An optical axis adjusting apparatus comprising: a laser beam source; a beam shaping prism for shaping a laser beam of elliptical flux emitted from said laser beam source into a laser beam of circular flux; and an angle adjusting cylinder having an axis extending through said beam shaping prism and said cylinder for adjusting the angular direction of the outgoing laser beam emitted from said base shaping prism, said beam shaping prism being secured to an end of said angle adjusting cylinder, said angle adjusting cylinder being rotatable about said axis.
Claim 2
Dependent Claim
91 words
An optical axis adjusting apparatus comprising: a laser beam source; a beam shaping prism for shaping a laser beam of elliptical flux emitted from said laser beam source into a laser beam of circular flux; and an angle adjusting cylinder having an axis extending through said beam shaping prism and said cylinder for adjusting the angular direction of the outgoing laser beam emitted from said base shaping prism, said beam shaping prism being secured to an end of said angle adjusting cylinder, said angle adjusting cylinder being rotatable about said axis.
Claim 3
Dependent Claim
37 words
An optical axis adjusting apparatus according to claim 1, further comprising parallel adjustment means for shifting the optical axis of the laser beam light rays in a parallel fashion to adjust the direction of the laser beam.
Claim 4
Dependent Claim
23 words
An optical axis adjusting apparatus according to claim 1, further comprising cylinder rotation adjusting means for adjusting the rotation of said adjusting cylinder.
Claim 5
Dependent Claim
28 words
An optical axis adjusting apparatus according to claim 1, further comprising linear adjustment means for adjusting said beam shaping prism in the axial direction of the laser beam.
Claim 6
Dependent Claim
22 words
An optical axis adjusting apparatus according to claim 1, wherein said adjusting cylinder comprises adjusting means for adjusting the axial position thereof.
Claim 7
Dependent Claim
30 words
An optical axis adjusting apparatus according to claim 1, wherein the laser beam emitted from said laser beam source in obliquely incident upon a surface of said beam shaping prism.
Claim 8
Dependent Claim
42 words
An optical axis adjusting apparatus according to claim 3, wherein said rotation adjusting means includes a securing element for immovably holding said angle adjusting cylinder, said securing element being selectively movable to allow rotation of said angle adjusting cylinder about said axis.
Claim 9
Dependent Claim
69 words
An optical axis adjusting apparatus according to claim 7, wherein said securing element includes a securing plate, said securing plate being secured to a support by fastening elements, said angle adjusting cylinder being immovably held between said securing plate and said support when said fastening elements are in a fastening position, and rotation of said angle adjusting cylinder being allowed when said fastening elements are in a nonfastening position.
Claim 10
Dependent Claim
52 words
An optical axis adjusting apparatus according to claim 8, said securing plate including an opening, said angle adjusting cylinder including an adjustment hole being substantially aligned with said opening, whereby said angle adjusting cylinder may be rotated about said axis by a rotating jig inserted into said opening and said adjustment hole.
References Cited (Backward Citations)
US4034949A
Cited
US4118109A
Cited
US4059343A
Cited
US4016504A
Cited
US4319807A
Cited
US4948233A
Cited
US4623225A
Cited
US4819096A
Cited
JPS63140426A
Cited
JPS63157817A
Cited
US4768184A
Cited
US4850686A
Cited
US4822974A
Cited
US5084783A
Cited
US4997250A
Cited
US5155633A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-08-16 | 1997-02-15 | 1997-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-08-16 | 2001-02-15 | 2001-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-08-16 | 2005-02-15 | 2005-08-17 | $7700.00 | Window Closed / Lapsed |