EP0251623A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Off-axis application of concave spherical reflectors as condensing and collecting optics
Assignee: Cogent Light Technologues Inc
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Filing: 1987-06-22
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Granted: —
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Expires: 2007-06-22
Abstract
Abstract A portion of a nearly spherical reflector is used to direct the electromagnetic radiation onto a small target. The electromagnetic radiation source is displaced from the optical axis of the reflector to maximize flux density atthe target with minimal distortion. The present invention is particularly suited to coupling light from an arc lamp into an optic fiber.
Inventors
- 👤 David Bradford Cross
- 👤 Seiji Inatsugu
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-26 16:56
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/42; G02B6/4298; G02B19/00; G02B19/0004; G02B19/0019; G02B19/0023; G02B19/0033; G02B19/0047; G02B6/4201; G02B6/4204; G02B6/4206
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
74 words
An electromagnetic radiation collecting and condensing system comprising: a concave electromagnetic radiation reflector; an electromagnetic radiation source located near the center of curvature of said reflector but offset from the axis of symmetry of said reflector so as to produce an image of said source upon reflection from said reflector offset from said axis by substantially the same distance as said source; and a target placed near said image to collect said electromagnetic radiation.
Claim 2
Dependent Claim
74 words
An electromagnetic radiation collecting and condensing system comprising: a concave electromagnetic radiation reflector; an electromagnetic radiation source located near the center of curvature of said reflector but offset from the axis of symmetry of said reflector so as to produce an image of said source upon reflection from said reflector offset from said axis by substantially the same distance as said source; and a target placed near said image to collect said electromagnetic radiation.
Claim 3
Dependent Claim
31 words
The collecting and condensing system of claim 1 wherein a correcting optics system is placed between said target and said reflector to improve the focus of said image on said target.
Claim 4
Dependent Claim
36 words
' The collecting and condensing system of claim 1 wherein said source is an arc lamp the flux density of which is increased through the application of a magnetic field surrounding the electrodes of said arc.
Claim 5
Dependent Claim
24 words
The collecting and condensing system of claim 2 wherein said reflector is mechanically deformed to improve the focus of said image on said target.
Claim 6
Dependent Claim
98 words
An electromagnetic radiation collecting and condensing system comprising: an electromagnetic radiation reflector, said reflector having a shap substantially like that of a portion of a sphere; an electromagnetic radiation source, said source's location being offset perpendicular to an axis of symmetry which is normal to said reflector at a point near the center of the surface area of said reflector so that said source produces an image of said source upon reflection which is offset from said axis by substantially the same distance as said source; and a target placed near said image to collect said electromagnetic radiation.
Claim 7
Dependent Claim
98 words
An electromagnetic radiation collecting and condensing system comprising: an electromagnetic radiation reflector, said reflector having a shap substantially like that of a portion of a sphere; an electromagnetic radiation source, said source's location being offset perpendicular to an axis of symmetry which is normal to said reflector at a point near the center of the surface area of said reflector so that said source produces an image of said source upon reflection which is offset from said axis by substantially the same distance as said source; and a target placed near said image to collect said electromagnetic radiation.
Claim 8
Dependent Claim
31 words
The collecting and condensing system of claim 5 wherein a correcting optics system is placed between said target and said reflector to improve the focus of said image on said target.
Claim 9
Dependent Claim
37 words
The collecting and condensing system of claim 5 wherein said source is an arc lamp the flux density of which is increased through the application of a magnetic field substantially parallele to the electrodes of said arc.
Claim 10
Dependent Claim
24 words
The collecting and condensing system of claim 5 wherein said reflector is mechanically deformed to improve the focus of said image on said target.
Claim 11
Dependent Claim
72 words
A light collecting and condensing system comprising: a mirror having a shape substantially like that of a portion of a sphere; an arc lamp located near the center of curvature of said mirror but offset from said mirror's axis of symmetry so as produce animage of said lamp offset from said axis by substantially the same distance as said source; and an optic fiber placed near said image to collect said light.
Claim 12
Dependent Claim
72 words
A light collecting and condensing system comprising: a mirror having a shape substantially like that of a portion of a sphere; an arc lamp located near the center of curvature of said mirror but offset from said mirror's axis of symmetry so as produce animage of said lamp offset from said axis by substantially the same distance as said source; and an optic fiber placed near said image to collect said light.
Claim 13
Dependent Claim
20 words
The collecting and condensing system of claim 9 wherein dichroic filters are placed between said mirror and said optic fiber.
Claim 14
Dependent Claim
26 words
The collecting and condensing system of claim 10 wherein said dichroic filters comprise an element assembly and are mounted to means for remotely selecting filter elements.
Claim 15
Dependent Claim
33 words
The collecting and condensing system of claim 9 wherein a correcting optics system is placed between said mirror and said optic fiber to improve the focus of said image on said optic fiber.
Claim 16
Dependent Claim
29 words
The collecting and condensing system of claim 9 wherein means for generating a magnetic field is used to increase the plasma density between the electrodes of said arc lamp.
Claim 17
Dependent Claim
33 words
The collecting and condensing system of claim 9 wherein means for deforming the shape of said mirror is coupled to said mirror to improve the focus of said image on said optic fiber.
References Cited (Backward Citations)
No citation records indexed.
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