GB2000855A - An optical arrangement - Google Patents

An optical arrangement

Info

Publication number
GB2000855A
GB2000855A GB7828960A GB7828960A GB2000855A GB 2000855 A GB2000855 A GB 2000855A GB 7828960 A GB7828960 A GB 7828960A GB 7828960 A GB7828960 A GB 7828960A GB 2000855 A GB2000855 A GB 2000855A
Authority
GB
United Kingdom
Prior art keywords
optical arrangement
focus
source
reflectors
outline
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
GB7828960A
Other versions
GB2000855B (en
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.)
Compagnie des Lampes
Original Assignee
Compagnie des Lampes
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 Compagnie des Lampes filed Critical Compagnie des Lampes
Publication of GB2000855A publication Critical patent/GB2000855A/en
Application granted granted Critical
Publication of GB2000855B publication Critical patent/GB2000855B/en
Expired 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
    • F21V7/04—Optical design
    • F21V7/09—Optical design with a combination of different curvatures

Abstract

An optical arrangement comprises a reflector (2) of parabolic outline which cooperates with one or more reflectors (3, 5, 6) of elliptical outline to direct light beams in a direction which preferably forms an angle of between 40 to 50 DEG with the axis (XY) on which are situated the focus (F) of the source and the focus (F1) of the parabola. The arrangement may be mounted in a framework with the possible addition of means to enable the various reflectors to be individually positioned in relation, to the source. <IMAGE>
GB7828960A 1977-07-08 1978-07-05 Optical arrangement which provides a directional light beam and illuminating apparatus incorporating such an arrangement Expired GB2000855B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7721193A FR2396922A1 (en) 1977-07-08 1977-07-08 OPTICAL DEVICE PROVIDING A DIRECTIVE LIGHT BEAM AND LIGHTING DEVICE INCLUDING SUCH A DEVICE

Publications (2)

Publication Number Publication Date
GB2000855A true GB2000855A (en) 1979-01-17
GB2000855B GB2000855B (en) 1982-02-03

Family

ID=9193183

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7828960A Expired GB2000855B (en) 1977-07-08 1978-07-05 Optical arrangement which provides a directional light beam and illuminating apparatus incorporating such an arrangement

Country Status (12)

Country Link
BE (1) BE868832A (en)
DE (1) DE2829969A1 (en)
DK (1) DK306378A (en)
ES (1) ES471494A1 (en)
FR (1) FR2396922A1 (en)
GB (1) GB2000855B (en)
IT (1) IT1096999B (en)
LU (1) LU79935A1 (en)
NL (1) NL7807277A (en)
OA (1) OA06004A (en)
PT (1) PT68253A (en)
SE (1) SE7807550L (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HUT35362A (en) * 1981-04-30 1985-06-28 Tivadar Foeldi Lighting armature, preferably for indoor light

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1011455A (en) * 1949-02-11 1952-06-23 Ets Claude Paz & Silva Lighting fixtures improvements
GB688102A (en) * 1950-08-16 1953-02-25 British Thomson Houston Co Ltd Improvements in and relating to luminaires
DE1696803U (en) * 1953-06-03 1955-04-21 Siemens Ag WIDE RADIATION STREET LIGHTS FOR FLUORESCENT LAMPS.
NL152889B (en) * 1967-03-10 1977-04-15 Gen Electric PROCESS FOR PREPARING A LINEAR POLYCARBONATE COPOLYMER AND ORIENTABLE TEXTILE FIBER OF THIS COPOLYMER.

Also Published As

Publication number Publication date
IT1096999B (en) 1985-08-26
DK306378A (en) 1979-01-09
DE2829969A1 (en) 1979-01-25
LU79935A1 (en) 1978-12-12
IT7825324A0 (en) 1978-07-05
ES471494A1 (en) 1979-02-01
PT68253A (en) 1978-08-01
GB2000855B (en) 1982-02-03
FR2396922A1 (en) 1979-02-02
NL7807277A (en) 1979-01-10
BE868832A (en) 1978-11-03
SE7807550L (en) 1979-01-09
OA06004A (en) 1981-06-30
FR2396922B1 (en) 1981-06-12

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee