EP0106336A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Laser source apparatus
Assignee: Hitachi Ltd
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Filing: 1983-10-14
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Granted: —
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Expires: 2003-10-14
Abstract
Abstract A light source apparatus comprises one laser oscillator (1), at least one other laser oscillator (2, 3, 4), a light converter (5, 6, 7) for converting a laser beam emitted from the other laser oscillator into a ring-shaped laser beam, and a reflecting mirror (8, 9, 10; 40, 50, 60) for passing a laser light beam (20) emitted from the one laser oscillator through the center hole of the mirror and for reflecting the ring-shaped laser beam from the other laser oscillator via the light converter, the laser beam reflected by the reflecting mirror being coaxial with and being overlapped with the laser beam transmitted through the mirror from the one laser oscillator.
Inventors
- 👤 Tateoki Miyauchi
- 👤 Mikio Hongo
- 👤 Katsuro Mizukoshi
- 👤 Hiroshi Yamaguchi
- 👤 Akira Shimase
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 22:06
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/09; G02B27/0927; B; B23; B23K; B23K26/00; B23K26/02; B23K26/06; B23K26/0604; B23K26/073; B23K26/0734; G02B27/0905; G02B27/0938; G02B27/0977
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
121 words
A laser source apparatus comprising: a first laser oscillator (1); at least one second laser oscillator (2, 3, 4); at least one light converter (5, 6, 7) coupled with said second laser oscillator for converting a laser beam emitted from said second laser oscillator into a ring-shaped laser beam; and at least one reflecting means (8, 9, 10; 40, 50, 60) combined with said second laser oscillator for passing a laser beam (20a) emitted from said first laser oscillator through the center thereof and for reflecting laser beam fed from said second a laser oscillator through said light converter, whereby the ring-shaped laser beam reflected by said reflecting means is arranged coaxially with said laser beam passed through said reflecting means.
Claim 2
Dependent Claim
121 words
A laser source apparatus comprising: a first laser oscillator (1); at least one second laser oscillator (2, 3, 4); at least one light converter (5, 6, 7) coupled with said second laser oscillator for converting a laser beam emitted from said second laser oscillator into a ring-shaped laser beam; and at least one reflecting means (8, 9, 10; 40, 50, 60) combined with said second laser oscillator for passing a laser beam (20a) emitted from said first laser oscillator through the center thereof and for reflecting laser beam fed from said second a laser oscillator through said light converter, whereby the ring-shaped laser beam reflected by said reflecting means is arranged coaxially with said laser beam passed through said reflecting means.
Claim 3
Dependent Claim
75 words
A laser source apparatus according to Claim 1, further comprising another reflecting means for reflecting the laser beam emitted from said first laser oscillator, said another reflecting means having a curved surface; wherein the first-mentioned reflecting means has a curved surface, a focal point of laser beam reflected from said curved surface of.said another reflecting means is substantially coincident with a focal point of laser beam reflected from said curved surface of said reflecting means.
Claim 4
Dependent Claim
32 words
A laser source apparatus according to claim 1 or 2 wherein said light converter comprises at least two light elements, each of said light elements having a portion of a circular cone.
Claim 5
Dependent Claim
159 words
A laser source apparatus comprising: n-laser oscillators (n ≧ 2, an integer) (1-4) aligned along a main beam axis; (n-1) light converters (5-7) coupled with (n-1) ones of said laser oscillators, each converting a laser beam generated from the corresponding laser oscillator into a substantially ring-shaped laser beam; (n-1) reflecting mirrors disposed on the main beam axis at an angle and adapted to receive the 'ring-shaped laser beams from said (n-1) light converters, respectively, each of said reflecting mirrors having a through-hole of dimensions enough to transmit an entering laser beam; a non-ring-shaped laser beam emitted from one laser oscillator other than said (n-1) laser oscillators being transmitted to travel on the center of said main beam axis; whereby the laser beams reflected by said reflecting mirrors and the non-ring-shaped laser beam emitted from said one laser oscillator are arranged coaxially of the main beam axis to produce a combined laser beam at an output end of the apparatus.
Claim 6
Dependent Claim
159 words
A laser source apparatus comprising: n-laser oscillators (n ≧ 2, an integer) (1-4) aligned along a main beam axis; (n-1) light converters (5-7) coupled with (n-1) ones of said laser oscillators, each converting a laser beam generated from the corresponding laser oscillator into a substantially ring-shaped laser beam; (n-1) reflecting mirrors disposed on the main beam axis at an angle and adapted to receive the 'ring-shaped laser beams from said (n-1) light converters, respectively, each of said reflecting mirrors having a through-hole of dimensions enough to transmit an entering laser beam; a non-ring-shaped laser beam emitted from one laser oscillator other than said (n-1) laser oscillators being transmitted to travel on the center of said main beam axis; whereby the laser beams reflected by said reflecting mirrors and the non-ring-shaped laser beam emitted from said one laser oscillator are arranged coaxially of the main beam axis to produce a combined laser beam at an output end of the apparatus.
Claim 7
Dependent Claim
44 words
The apparatus according to claim 4, further comprising a reflecting mirror (70) disposed between said one laser oscillator and said main beam axis for reflecting a laser beam from said one laser oscillator to thereby travel on the center of said main beam axis.
Claim 8
Dependent Claim
26 words
The apparatus according to claim 4, further comprising oscillation control means (11) connected to said n-laser oscillators for controlling the laser oscillation of each laser oscillator.
Claim 9
Dependent Claim
49 words
The laser source apparatus according to Claim 4, wherein each of said reflecting mirrors has a flat reflective surface to produce at the output end a combined laser beam such that the laser beams emitted from said laser oscillators are coaxially and tightly adjacent to each other in section.
Claim 10
Dependent Claim
46 words
The laser source apparatus according to Claim 5, wherein each of said reflecting mirrors has a curved reflective surface to produce at the output end a combined laser beam such that the laser beams emitted from said laser oscillators are in section overlapped with each other.
Claim 11
Dependent Claim
39 words
The laser source apparatus according to Claim 4, wherein said reflecting mirrors have through-holes whose diameters are increased with downstream reflecting mirrors on said main beam axis so as to allow transmission of laser beams entering from upstream mirrors.
Claim 12
Dependent Claim
19 words
The laser source apparatus according to Claim 4, wherein said angle for the (n-1) reflecting mirrors is 45 degrees.
References Cited (Backward Citations)
No citation records indexed.
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