ES414498A1 - Non-luminance lighting panel - Google Patents

Non-luminance lighting panel

Info

Publication number
ES414498A1
ES414498A1 ES414498A ES414498A ES414498A1 ES 414498 A1 ES414498 A1 ES 414498A1 ES 414498 A ES414498 A ES 414498A ES 414498 A ES414498 A ES 414498A ES 414498 A1 ES414498 A1 ES 414498A1
Authority
ES
Spain
Prior art keywords
panel
elements
conical
situated
refracting
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.)
Expired
Application number
ES414498A
Other languages
Spanish (es)
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.)
GOYTISOLO TALTAVULL
Original Assignee
GOYTISOLO TALTAVULL
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 GOYTISOLO TALTAVULL filed Critical GOYTISOLO TALTAVULL
Publication of ES414498A1 publication Critical patent/ES414498A1/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
    • F21V5/00—Refractors for light sources
    • F21V5/02—Refractors for light sources of prismatic shape

Abstract

A transparent prismatic low luminescent lighting panel of a type having a plurality of refracting prismatic elements on its outer surface in the form of pyramids or cones, said elements having curved surfaces, wherein said elements in conical form have cross-sectional profiles and are situated on the surface of the exterior face of said panel such that luminous rays which by reason of their angle of incidence relative to the panel, suffer little energy loss on travelling through the thickness of the panel and which because of incidence at certain points of the panel, emerge from said conical elements defining angles of between 60 DEG and 90 DEG with respect to the axis of symmetry of said conical elements strike an adjacent cone and suffer total internal reflection, thus reducing the low luminance of said panel. Said refracting elements of pyramidal form are situated on the exterior face of the panel forming therebetween narrow, flat zones which improve the light efficiency of said panel without having an unfavorable effect on the luminescence of said panel.
ES414498A 1972-04-20 1973-04-18 Non-luminance lighting panel Expired ES414498A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US24590472A 1972-04-20 1972-04-20

Publications (1)

Publication Number Publication Date
ES414498A1 true ES414498A1 (en) 1976-05-01

Family

ID=22928579

Family Applications (1)

Application Number Title Priority Date Filing Date
ES414498A Expired ES414498A1 (en) 1972-04-20 1973-04-18 Non-luminance lighting panel

Country Status (6)

Country Link
US (1) US3794829A (en)
JP (1) JPS5443317B2 (en)
DE (1) DE2320247A1 (en)
ES (1) ES414498A1 (en)
FR (1) FR2181010B2 (en)
IT (1) IT1045303B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4004145A (en) * 1975-02-24 1977-01-18 Ignacio Goytisolo Taltavull Nil-luminance lighting panel
CA1044203A (en) * 1975-05-01 1978-12-12 James D. Howe Lighting panel having improved refracting elements
FR2454135A1 (en) * 1979-04-13 1980-11-07 Suisse Horlogerie DIFFUSING SURFACE STRUCTURE FOR AN INFORMATION DISPLAY LIGHT GUIDE
DE3044470A1 (en) * 1980-11-26 1982-06-03 Kernforschungsanlage Jülich GmbH, 5170 Jülich METHOD FOR ILLUMINATING A SURFACE AS POSSIBLE AS POSSIBLE FROM A PARALLEL BEAM AND DEVICE FOR LASER DIAGNOSTICS
US4545007A (en) * 1984-09-12 1985-10-01 Devine Lighting Luminaire with lenticular lens
US4703405A (en) * 1986-07-17 1987-10-27 Ian Lewin Glare reducing lens
US5124839A (en) * 1989-11-08 1992-06-23 Canon Kabushiki Kaisha Phase-type focusing screen
US5003448A (en) * 1990-02-07 1991-03-26 K-S-H, Inc. Light-weight lenticular lighting panel
US6033094A (en) * 1997-10-02 2000-03-07 Fresnel Technologies, Inc. Microlens array for improved illumination patterns
US7187505B2 (en) * 2002-10-07 2007-03-06 Fresnel Technologies, Inc. Imaging lens for infrared cameras
TW200528849A (en) * 2004-02-27 2005-09-01 Hon Hai Prec Ind Co Ltd Light guide plate
JP4499519B2 (en) * 2004-07-12 2010-07-07 大日本印刷株式会社 Diffusion sheet, surface light source device, transmissive display device
US20100128351A1 (en) * 2008-11-21 2010-05-27 3M Innovative Properties Company Curved sided cone structures for controlling gain and viewing angle in an optical film
DE102011103981A1 (en) * 2011-06-10 2012-12-13 Siteco Beleuchtungstechnik Gmbh prism plate

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2474317A (en) * 1949-06-28 Light refracting and transmitting
US1241886A (en) * 1916-07-12 1917-10-02 Levi Leroy Rowe Lens.
US2859334A (en) * 1954-09-09 1958-11-04 Edwin F Guth Company Louvers
US3038065A (en) * 1957-05-21 1962-06-05 Holophane Co Inc Prismatic plate
US3096032A (en) * 1959-09-23 1963-07-02 Lighting Products Inc Lighting diffuser
US3234376A (en) * 1963-02-11 1966-02-08 Michael J Ceglia Glare-free lighting fixture
US3566102A (en) * 1967-09-13 1971-02-23 Artcrest Products Co Inc Light panel
US3671101A (en) * 1969-07-25 1972-06-20 Dan M Finch Light control material
US3578967A (en) * 1969-08-27 1971-05-18 Ksh Inc Prismatic lighting panel

Also Published As

Publication number Publication date
JPS5443317B2 (en) 1979-12-19
FR2181010A2 (en) 1973-11-30
JPS4920964A (en) 1974-02-23
DE2320247A1 (en) 1973-10-25
FR2181010B2 (en) 1974-11-08
IT1045303B (en) 1980-05-10
US3794829A (en) 1974-02-26

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