DE3004412A1 - Spherical reflector with refractive index above 1.42 - has coaxial rings with totally reflecting prism faces on surface away from focus - Google Patents

Spherical reflector with refractive index above 1.42 - has coaxial rings with totally reflecting prism faces on surface away from focus

Info

Publication number
DE3004412A1
DE3004412A1 DE19803004412 DE3004412A DE3004412A1 DE 3004412 A1 DE3004412 A1 DE 3004412A1 DE 19803004412 DE19803004412 DE 19803004412 DE 3004412 A DE3004412 A DE 3004412A DE 3004412 A1 DE3004412 A1 DE 3004412A1
Authority
DE
Germany
Prior art keywords
refractive index
reflecting prism
totally reflecting
focus
surface away
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
DE19803004412
Other languages
German (de)
Other versions
DE3004412C2 (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.)
Sidler GmbH and Co
Original Assignee
Sidler GmbH and Co
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 Sidler GmbH and Co filed Critical Sidler GmbH and Co
Priority to DE19803004412 priority Critical patent/DE3004412C2/de
Publication of DE3004412A1 publication Critical patent/DE3004412A1/en
Application granted granted Critical
Publication of DE3004412C2 publication Critical patent/DE3004412C2/de
Anticipated expiration legal-status Critical
Application status is Expired - Fee Related legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00Reflectors for light sources
    • F21V7/04Optical design
    • F21V7/09Optical design with a combination of different curvatures
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
    • G02B5/00Optical elements other than lenses
    • G02B5/12Reflex reflectors
    • G02B5/126Reflex reflectors including curved refracting surface
    • G02B5/13Reflex reflectors including curved refracting surface plural curved refracting elements forming part of a unitary body

Abstract

The reflector (1) is partic. intended for a vehicle. It is rotationally symmetric relative to the optical axis (6) and shaped such that a light beam from its centre (2) is reflected back to the same point. It consists of a material with refractive index of 1.42 or higher and its surface facing the focal point (2) consists of co-axial rings (5) of indeterminate width. On the opposite surface each ring has a totally reflecting prism (3) contour (7), the apex bisectors of these prisms forming a cone whose apex is near the focal point (20). The ring surfaces may be slightly convex.
DE19803004412 1980-02-07 1980-02-07 Expired - Fee Related DE3004412C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19803004412 DE3004412C2 (en) 1980-02-07 1980-02-07

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19803004412 DE3004412C2 (en) 1980-02-07 1980-02-07

Publications (2)

Publication Number Publication Date
DE3004412A1 true DE3004412A1 (en) 1981-08-13
DE3004412C2 DE3004412C2 (en) 1991-05-02

Family

ID=6093933

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19803004412 Expired - Fee Related DE3004412C2 (en) 1980-02-07 1980-02-07

Country Status (1)

Country Link
DE (1) DE3004412C2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5237449A (en) * 1991-01-29 1993-08-17 Nelson Optics Company, Inc. Biased lenticular sign system
US6226135B1 (en) * 1997-10-28 2001-05-01 Oki Electric Industry Co., Ltd. Reflector type prism and reflector type prism forming die
DE102007035528A1 (en) * 2007-07-26 2009-01-29 Erco Leuchten Gmbh lamp

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2819539A1 (en) * 1977-05-10 1978-11-16 Fiat Spa Reflector / or display devices for lighting and, in particular for motor vehicles

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2819539A1 (en) * 1977-05-10 1978-11-16 Fiat Spa Reflector / or display devices for lighting and, in particular for motor vehicles

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5237449A (en) * 1991-01-29 1993-08-17 Nelson Optics Company, Inc. Biased lenticular sign system
US6226135B1 (en) * 1997-10-28 2001-05-01 Oki Electric Industry Co., Ltd. Reflector type prism and reflector type prism forming die
DE102007035528A1 (en) * 2007-07-26 2009-01-29 Erco Leuchten Gmbh lamp
DE102007035528B4 (en) * 2007-07-26 2011-12-22 Erco Gmbh lamp
DE102007035528B9 (en) * 2007-07-26 2012-02-09 Erco Gmbh lamp

Also Published As

Publication number Publication date
DE3004412C2 (en) 1991-05-02

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee