Patent US5361316A successfully refreshed from Google Patents.
US5361316A
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Optical fiber laser device for transmitting a pulse laser beam
Assignee: Hamamatsu Photonics KK
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Filing: 1993-11-23
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Granted: 1994-11-01
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Expires: 2013-11-23
Abstract
Abstract An optical fiber laser device, used as a pulse laser device, has a spherical lens made of optical glass having a refractive index of 2 or less. The spherical lens is provided on an extreme end of an optical fiber which guides a pulse laser beam. An object side of the spherical lens is projected externally of a base housing the spherical lens therein.
Inventors
- 👤 Akio Tanaka
- 👤 Toru Hirano
- 👤 Masami Ohsawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:40
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/42; G02B6/4296; G02B6/26; G02B6/32; Y; Y10; Y10S; Y10S385/00; Y10S385/902
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
61 words
An optical fiber laser device for transmitting a pulse laser beam comprising a spherical lens made of optical glass having a refractive index of 2 or less provided at an extreme end portion of an optical fiber which guides a pulse laser beam, wherein an object side of said spherical lens projects externally of a base housing the spherical lens therein.
Claim 2
Dependent Claim
61 words
An optical fiber laser device for transmitting a pulse laser beam comprising a spherical lens made of optical glass having a refractive index of 2 or less provided at an extreme end portion of an optical fiber which guides a pulse laser beam, wherein an object side of said spherical lens projects externally of a base housing the spherical lens therein.
Claim 3
Dependent Claim
58 words
An optical fiber laser device for a pulse laser device, comprising a spherical lens made of optical glass having a refractive index of 1.516 provided at an extreme end portion of an optical fiber which guides a pulse laser beam, wherein an object side of said spherical lens projects externally of a base housing the spherical lens therein.
Claim 4
Dependent Claim
58 words
An optical fiber laser device for a pulse laser device, comprising a spherical lens made of optical glass having a refractive index of 1.516 provided at an extreme end portion of an optical fiber which guides a pulse laser beam, wherein an object side of said spherical lens projects externally of a base housing the spherical lens therein.
Claim 5
Dependent Claim
63 words
An optical fiber laser device, comprising: a base; a spherical lens housed in said base, said spherical lens having a refractive index no greater than 2 and having an object side projecting externally of said base; and an optical fiber for guiding a pulse laser beam, said optical fiber having an extreme end, and said spherical lens being positioned at said extreme end.
Claim 6
Dependent Claim
63 words
An optical fiber laser device, comprising: a base; a spherical lens housed in said base, said spherical lens having a refractive index no greater than 2 and having an object side projecting externally of said base; and an optical fiber for guiding a pulse laser beam, said optical fiber having an extreme end, and said spherical lens being positioned at said extreme end.
Claim 7
Dependent Claim
18 words
The optical fiber laser device of claim 3, wherein the refractive index of said spherical lens is 1.516.
Claim 8
Dependent Claim
46 words
The optical fiber laser device of claim 4, wherein a flexible tube has said base, said spherical lens and said optical fiber mounted therein by separators, and wherein said flexible tube and said base, said spherical lens and said optical fiber define a fluid passage therebetween.
References Cited (Backward Citations)
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