CA2168338A1 - Condensing and collecting optical system using an ellipsoidal reflector - Google Patents

Condensing and collecting optical system using an ellipsoidal reflector

Info

Publication number
CA2168338A1
CA2168338A1 CA002168338A CA2168338A CA2168338A1 CA 2168338 A1 CA2168338 A1 CA 2168338A1 CA 002168338 A CA002168338 A CA 002168338A CA 2168338 A CA2168338 A CA 2168338A CA 2168338 A1 CA2168338 A1 CA 2168338A1
Authority
CA
Canada
Prior art keywords
target
ellipsoidal reflector
axis
optical system
ellipsoidal
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
CA002168338A
Other languages
French (fr)
Other versions
CA2168338C (en
Inventor
Karlheinz Strobl
Glenn S. Baker
Douglas M. Brenner
Robert L. Piccioni
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
Karlheinz Strobl
Glenn S. Baker
Douglas M. Brenner
Robert L. Piccioni
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 Karlheinz Strobl, Glenn S. Baker, Douglas M. Brenner, Robert L. Piccioni, Cogent Light Technologies, Inc. filed Critical Karlheinz Strobl
Publication of CA2168338A1 publication Critical patent/CA2168338A1/en
Application granted granted Critical
Publication of CA2168338C publication Critical patent/CA2168338C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4298—Coupling light guides with opto-electronic elements coupling with non-coherent light sources and/or radiation detectors, e.g. lamps, incandescent bulbs, scintillation chambers
    • 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
    • F21V7/04—Optical design
    • F21V7/08—Optical design with elliptical curvature
    • 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 off-axis optical system for collecting and con-densing electromagnetic radiation utilizes an ellipsoidal reflector configured to minimize the effects of magni-fication and optical aberrations. An ellipsoidal reflec-tor (M1, P) having primary and secondary focal points (F1, F2) along the major axis (8) is illuminated by a light source (S) and subtended by an acceptance cone (16) of the target (T). In one embodiment, a single ellipsoidal reflector is configured with its major axis non-coincident with its geometric optical axis (12) and with the optical axis (14) of the target at an angle greater than zero degrees so as to reduce substantially the distance at which a focused image is formed and to achieve an average magnification near unity thereby maintaining the brightness of the source at the target.
The radiant flux at the location of the target is increased by incorporating a retro-reflector (M2) of toroidal or spherical design.
CA002168338A 1993-07-30 1994-07-07 Condensing and collecting optical system using an ellipsoidal reflector Expired - Fee Related CA2168338C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/099,953 1993-07-30
US08/099,953 US5414600A (en) 1993-07-30 1993-07-30 Condensing and collecting optical system using an ellipsoidal reflector
PCT/US1994/007630 WO1995004240A1 (en) 1993-07-30 1994-07-07 Condensing and collecting optical system using an ellipsoidal reflector

Publications (2)

Publication Number Publication Date
CA2168338A1 true CA2168338A1 (en) 1995-02-09
CA2168338C CA2168338C (en) 2001-05-08

Family

ID=22277396

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002168338A Expired - Fee Related CA2168338C (en) 1993-07-30 1994-07-07 Condensing and collecting optical system using an ellipsoidal reflector

Country Status (9)

Country Link
US (1) US5414600A (en)
EP (1) EP0746722A4 (en)
JP (1) JP3190680B2 (en)
CN (1) CN1128063A (en)
AU (1) AU7325394A (en)
CA (1) CA2168338C (en)
IL (1) IL109894A (en)
TW (1) TW296419B (en)
WO (1) WO1995004240A1 (en)

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Also Published As

Publication number Publication date
TW296419B (en) 1997-01-21
AU7325394A (en) 1995-02-28
WO1995004240A1 (en) 1995-02-09
CA2168338C (en) 2001-05-08
IL109894A (en) 1997-07-13
JPH09501261A (en) 1997-02-04
EP0746722A1 (en) 1996-12-11
JP3190680B2 (en) 2001-07-23
EP0746722A4 (en) 1999-12-01
US5414600A (en) 1995-05-09
CN1128063A (en) 1996-07-31

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