CA2141684A1 - Concentrating and collecting optical system using concave toroidal reflectors - Google Patents

Concentrating and collecting optical system using concave toroidal reflectors

Info

Publication number
CA2141684A1
CA2141684A1 CA002141684A CA2141684A CA2141684A1 CA 2141684 A1 CA2141684 A1 CA 2141684A1 CA 002141684 A CA002141684 A CA 002141684A CA 2141684 A CA2141684 A CA 2141684A CA 2141684 A1 CA2141684 A1 CA 2141684A1
Authority
CA
Canada
Prior art keywords
concave
reflecting surface
reflector
concentrating
optical system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002141684A
Other languages
French (fr)
Other versions
CA2141684C (en
Inventor
Glenn Baker
Karlheinz Strobl
Douglas Brenner
Robert Fischer
Robert Piccioni
Michael Thomas
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cogent Light Technologues Inc
Original Assignee
Glenn Baker
Karlheinz Strobl
Douglas Brenner
Robert Fischer
Robert Piccioni
Michael Thomas
Cogent Light Technologies, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Glenn Baker, Karlheinz Strobl, Douglas Brenner, Robert Fischer, Robert Piccioni, Michael Thomas, Cogent Light Technologies, Inc. filed Critical Glenn Baker
Publication of CA2141684A1 publication Critical patent/CA2141684A1/en
Application granted granted Critical
Publication of CA2141684C publication Critical patent/CA2141684C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/0025—Combination of two or more reflectors for a single light source
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0005—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being of the fibre type
    • G02B6/0006—Coupling light into the fibre

Abstract

An electromagnetic radiation source (S) such as an arc lamp, is located at a point displaced from the optical axis (o) of a concave toroidal reflecting surface. The concave primary reflector (M1) focuses the radiation from the source at an off-axis image point that is displaced from the optical axis. The use of a toroidal reflecting surface enhances the collection efficiency into a small target (T), such as an optical fiber, relative to a spherical reflecting surface by substantially reducing aberrations caused by the off-axis geometry. A second concave reflector (M2) is placed opposite to the first reflector to enhance the total flux collected by a small target.
CA002141684A 1992-08-03 1993-07-29 Concentrating and collecting optical system using concave toroidal reflectors Expired - Fee Related CA2141684C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US07/924,198 US5430634A (en) 1992-08-03 1992-08-03 Concentrating and collecting optical system using concave toroidal reflectors
US07/924,198 1992-08-03
PCT/US1993/007124 WO1994003759A2 (en) 1992-08-03 1993-07-29 Toroidal reflectors for optical system

Publications (2)

Publication Number Publication Date
CA2141684A1 true CA2141684A1 (en) 1994-02-17
CA2141684C CA2141684C (en) 2004-09-28

Family

ID=25449867

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002141684A Expired - Fee Related CA2141684C (en) 1992-08-03 1993-07-29 Concentrating and collecting optical system using concave toroidal reflectors

Country Status (12)

Country Link
US (2) US5430634A (en)
EP (1) EP0653039B1 (en)
JP (1) JP3153890B2 (en)
CN (1) CN1048321C (en)
AT (1) ATE166443T1 (en)
AU (1) AU4791193A (en)
CA (1) CA2141684C (en)
DE (1) DE69318718T2 (en)
ES (1) ES2116463T3 (en)
MX (1) MX9304644A (en)
SG (1) SG43336A1 (en)
WO (1) WO1994003759A2 (en)

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Also Published As

Publication number Publication date
DE69318718D1 (en) 1998-06-25
EP0653039A1 (en) 1995-05-17
CN1086906A (en) 1994-05-18
DE69318718T2 (en) 1998-12-24
US5430634A (en) 1995-07-04
EP0653039A4 (en) 1995-08-30
EP0653039B1 (en) 1998-05-20
ES2116463T3 (en) 1998-07-16
CA2141684C (en) 2004-09-28
ATE166443T1 (en) 1998-06-15
CN1048321C (en) 2000-01-12
MX9304644A (en) 1994-03-31
US5836667A (en) 1998-11-17
WO1994003759A2 (en) 1994-02-17
JPH08501408A (en) 1996-02-13
AU4791193A (en) 1994-03-03
JP3153890B2 (en) 2001-04-09
WO1994003759A3 (en) 1994-04-28
SG43336A1 (en) 1997-10-17

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