Patent US4586795A successfully refreshed from Google Patents.
US4586795A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Waveguide for laser beams
Assignee: Sumitomo Electric Industries Ltd
•
Filing: 1984-09-24
•
Granted: 1986-05-06
•
Expires: 2004-09-24
Abstract
Abstract A laser waveguide is developed which uses various combinations of convex and concave mirrors in conjugate pairs. The waveguide is made more effications by arranging the mirrors and selecting the reflective surfaces thereof so that the diametral increase of plurality of parallel light beams is checked, or the diameter reduced.
Inventors
- 👤 Kimizo Ono
- 👤 Shinya Takenaka
- 👤 Katsuyoshi Sunago
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:47
CPC Classifications
B; B23; B23K; B23K26/00; B23K26/02; B23K26/06; B23K26/064; B23K26/0643; B23K26/0604; B23K26/0648; B23K26/0665; G; G02; G02B; G02B19/00; G02B19/0004; G02B19/0019; G02B19/0023; G02B19/0033; G02B6/00; G02B6/10
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
67 words
A waveguide for parallel light beams, comprising; a combination of at least one concave surface mirror and a convex surface mirror arranged in skew relation (Lw), said mirrors being formed such that parallel beams of light falling on said mirrors at given incident angles are reflected from one mirror to the other so that a common focus (F) is formed without an intermediate focus between said mirrors.
Claim 2
Dependent Claim
67 words
A waveguide for parallel light beams, comprising; a combination of at least one concave surface mirror and a convex surface mirror arranged in skew relation (Lw), said mirrors being formed such that parallel beams of light falling on said mirrors at given incident angles are reflected from one mirror to the other so that a common focus (F) is formed without an intermediate focus between said mirrors.
Claim 3
Dependent Claim
66 words
A waveguide for parallel light beams, comprising; a combination of at least a convex mirror and a concave mirror, said mirrors being arranged in skew relationship, and being formed such that parallel beams of light falling on said mirrors at given incident angles are reflected from one mirror to the other so that a common focus (F) is formed without an intermediate focus between said mirrors.
Claim 4
Dependent Claim
66 words
A waveguide for parallel light beams, comprising; a combination of at least a convex mirror and a concave mirror, said mirrors being arranged in skew relationship, and being formed such that parallel beams of light falling on said mirrors at given incident angles are reflected from one mirror to the other so that a common focus (F) is formed without an intermediate focus between said mirrors.
Claim 5
Dependent Claim
16 words
A waveguide as claimed in claims 1 or 2, wherein said mirrors comprise spherical reflecting surfaces.
Claim 6
Dependent Claim
136 words
A waveguide for light beams, comprising; a combination of at least two mirrors of spherical curvature arranged such that incident light falling at an angle other than 0° with respect to a normal through center of both of said mirrors is reflected from one mirror to the other wherein a common focus exists between said combination of mirrors, and at least two planar mirrors arranged on respective sides of said two spherically curved mirrors, and a further combination of at least one convex and one concave mirror arranged such that a beam axis and normals passing through centers of said mirrors lie in a plane, wherein a common focus of one said combination of mirrors is in agreement with a common focus of said further combination of mirrors, whereby a parallel light beam may be obtained.
Claim 7
Dependent Claim
136 words
A waveguide for light beams, comprising; a combination of at least two mirrors of spherical curvature arranged such that incident light falling at an angle other than 0° with respect to a normal through center of both of said mirrors is reflected from one mirror to the other wherein a common focus exists between said combination of mirrors, and at least two planar mirrors arranged on respective sides of said two spherically curved mirrors, and a further combination of at least one convex and one concave mirror arranged such that a beam axis and normals passing through centers of said mirrors lie in a plane, wherein a common focus of one said combination of mirrors is in agreement with a common focus of said further combination of mirrors, whereby a parallel light beam may be obtained.
Claim 8
Dependent Claim
132 words
A waveguide for light beams, comprising; a combination of mirrors having at least one concave surface mirror and a convex surface mirror F arranged in skew relation (Lw), said mirrors being formed such that beams of light falling on said mirrors at given incident angles are reflected from one mirror to the other so that a common focus (F) is formed without an intermediate focus between said combination of mirrors, and a further combination of at least one convex and one concave mirror arranged such that a beam axis and normals passing through centers of said mirrors lie in a plane, wherein a common focus on one said combination of mirrors is in agreement with a common focus of said further combination of mirrors, whereby a parallel light beam may be obtained.
Claim 9
Dependent Claim
132 words
A waveguide for light beams, comprising; a combination of mirrors having at least one concave surface mirror and a convex surface mirror F arranged in skew relation (Lw), said mirrors being formed such that beams of light falling on said mirrors at given incident angles are reflected from one mirror to the other so that a common focus (F) is formed without an intermediate focus between said combination of mirrors, and a further combination of at least one convex and one concave mirror arranged such that a beam axis and normals passing through centers of said mirrors lie in a plane, wherein a common focus on one said combination of mirrors is in agreement with a common focus of said further combination of mirrors, whereby a parallel light beam may be obtained.
Claim 10
Dependent Claim
131 words
A waveguide for light beams, comprising; a combination of mirrors having at least a convex mirror and a concave mirror, said mirrors being arranged in a skew relationship, and being formed such that beams of light falling on said mirrors at given incident angles are reflected from one mirror to the other so that a common focus (F) is formed without an intermediate focus between said combination of mirrors, and a further combination of at least one convex and one concave mirror arranged such that a beam axis and normals passing through centers of said mirrors lie in a plane, wherein a common focus of one said combination of mirrors is in agreement with a common focus of said further combination of mirrors, whereby a parallel light beam may be obtained.
Claim 11
Dependent Claim
131 words
A waveguide for light beams, comprising; a combination of mirrors having at least a convex mirror and a concave mirror, said mirrors being arranged in a skew relationship, and being formed such that beams of light falling on said mirrors at given incident angles are reflected from one mirror to the other so that a common focus (F) is formed without an intermediate focus between said combination of mirrors, and a further combination of at least one convex and one concave mirror arranged such that a beam axis and normals passing through centers of said mirrors lie in a plane, wherein a common focus of one said combination of mirrors is in agreement with a common focus of said further combination of mirrors, whereby a parallel light beam may be obtained.
Claim 12
Dependent Claim
16 words
A waveguide as claimed in claims 5 or 6, wherein said mirrors comprise spherical reflecting surfaces.
Claim 13
Dependent Claim
40 words
A waveguide as claimed in claims 10 or 11, wherein a common focus of one said combination of mirrors is in agreement with a common focus of said further combination of mirrors, whereby a parallel light beam may be obtained.
References Cited (Backward Citations)
US214501A
Cited
US2504383A
Cited
US2941078A
Cited
US3112355A
Cited
US3762794A
Cited
US3965327A
Cited
US3986767A
Cited
US3957339A
Cited
US3950079A
Cited
US4030807A
Cited
US4309005A
Cited
US4192573A
Cited
US4117319A
Cited
US4135787A
Cited
JPS5597A
Cited
US4239341A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-05-05 | 1989-11-04 | 1990-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-05-05 | 1993-11-04 | 1994-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-05-05 | 1997-11-04 | 1998-05-06 | $7700.00 | Window Closed / Lapsed |