CA2338123A1 - Optical element with a microprism structure for deviating light beams - Google Patents

Optical element with a microprism structure for deviating light beams Download PDF

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Publication number
CA2338123A1
CA2338123A1 CA002338123A CA2338123A CA2338123A1 CA 2338123 A1 CA2338123 A1 CA 2338123A1 CA 002338123 A CA002338123 A CA 002338123A CA 2338123 A CA2338123 A CA 2338123A CA 2338123 A1 CA2338123 A1 CA 2338123A1
Authority
CA
Canada
Prior art keywords
optical element
microprisms
element according
top surfaces
core
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
CA002338123A
Other languages
French (fr)
Other versions
CA2338123C (en
Inventor
Gunther Sejkora
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.)
Zumtobel Lighting GmbH Austria
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2338123A1 publication Critical patent/CA2338123A1/en
Application granted granted Critical
Publication of CA2338123C publication Critical patent/CA2338123C/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
    • G02B5/00—Optical elements other than lenses
    • G02B5/04—Prisms
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/201—Filters in the form of arrays
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/203—Filters having holographic or diffractive elements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S359/00—Optical: systems and elements
    • Y10S359/90—Methods

Abstract

An optical element (10, 10', 10") for deflecting light beams (18, 19), which enter and re-emerge from the latter, in such a way that their angle of emergence (.gamma.) is limited, in particular for use as a luminaire-cover, having a plate-like core (11, 11', 11") of transparent material which on one side is occupied by microprisms (12, 13) that taper - starting from their root (15) -- forming furrows (22), wherein all of the top surfaces (14) of the microprisms form the light-entry face and the other side (21) of the core forms the light--emergence face, and wherein the top surfaces (14) of the microprisms are formed convexly or concavely in a continuous or non-continuous manner, and also a method for producing the optical element (10, 10', 10").

Claims (10)

1. Optical element (10, 10', 10") for deflecting light beams (18, 19), which enter and re-emerge from the latter, in such a way that their angle of emergence (Y) is limited, having a plate-like core (11, 11', 11") of transparent material which on one side is occupied by microprisms (12, 13) that taper - starting from their root (15) - forming furrows (22), with all of the top surfaces (14) of the microprisms forming the light-entry face and the other side (21) of the core (11, 11', 11") forming the light-emergence face, characterised in that the top surfaces (14) of the microprisms are formed convexly or concavely in a continuous or non-continuous manner.
2. Optical element according to claim 1, characterised in that the top surfaces (14) of the microprisms are curved convexly or concavely.
3. Optical element according to claim 1, characterised in that the top surfaces (14) of the microprisms are stepped convexly or concavely.
4. Optical element according to one of the preceding claims, characterised in that the side faces (16) of the microprisms (12, 13) are formed so as to be reflective so that the light cannot emerge from the microprisms through the side faces (16).
5. Optical element according to one of the preceding claims, characterised in that the furrows (22) between the adjacent microprisms (12, 13) are formed so as to be reflective so that the light beams (18, 19) can only enter the optical element (10, 10', 10") through the top surfaces (14) of the microprisms.
6. Optical element according to claim 5, characterised in that the furrows (22) between the adjacent microprisms (12, 13) are covered with a cover (20) made of a reflective material.
7. Optical element according to claim 5, characterised in that the furrows (22) between the adjacent microprisms (12, 13) are filled up with a reflective material.
8. Method for producing an optical element according to one of claims 1 to 7, characterised in that the plate-like core (11, 11', 11") is mechanically worked out of a transparent block.
9. Method according to claim 8, characterised in that the transparent block is worked by means of laser beams.
10. Method for producing an optical element according to one of claims 1 to 7, characterised in that the transparent material of the core (11, 11', 11") is cast or injected into an appropriate mould and subsequently pressure is applied thereto.
CA2338123A 1999-05-20 2000-04-20 Optical element with a microprism structure for deviating light beams Expired - Fee Related CA2338123C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19923226A DE19923226A1 (en) 1999-05-20 1999-05-20 Optical element for deflection of light beams entering into this and exiting again from it so that exit angle of light beams is limited has micro-prism surfaces designed as convex or concave
DE19923226.1 1999-05-20
PCT/EP2000/003609 WO2000072054A1 (en) 1999-05-20 2000-04-20 Optical element with a microprism structure for deviating light rays

Publications (2)

Publication Number Publication Date
CA2338123A1 true CA2338123A1 (en) 2000-11-30
CA2338123C CA2338123C (en) 2011-06-07

Family

ID=7908677

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2338123A Expired - Fee Related CA2338123C (en) 1999-05-20 2000-04-20 Optical element with a microprism structure for deviating light beams

Country Status (12)

Country Link
US (1) US6700716B2 (en)
EP (1) EP1099127B1 (en)
JP (2) JP2003500687A (en)
KR (1) KR100751577B1 (en)
CN (1) CN1172201C (en)
AT (1) ATE400828T1 (en)
AU (1) AU774778B2 (en)
CA (1) CA2338123C (en)
DE (2) DE19923226A1 (en)
NO (1) NO322124B1 (en)
NZ (1) NZ509362A (en)
WO (1) WO2000072054A1 (en)

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US7815355B2 (en) * 2005-08-27 2010-10-19 3M Innovative Properties Company Direct-lit backlight having light recycling cavity with concave transflector
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US7720347B2 (en) * 2006-03-28 2010-05-18 Samsung Electronics Co., Ltd. Backlight having all-in-one type light guide plate and method of manufacturing all-in-one type light guide plate
KR100751519B1 (en) * 2006-05-08 2007-08-23 미래나노텍(주) Optical sheet and back light assembly of luquid crystal display equipped with the prism sheet
JP5060138B2 (en) * 2007-02-20 2012-10-31 富士通コンポーネント株式会社 Optical window member
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CN101354449B (en) * 2007-07-23 2011-09-28 鸿富锦精密工业（深圳）有限公司 Backlight module unit and optical plate thereof
KR20090021693A (en) * 2007-08-28 2009-03-04 삼성전자주식회사 Optical film, manufacturing method of the same and display device having the same
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CN101825736B (en) * 2009-03-03 2013-07-24 北京京东方光电科技有限公司 Enhanced prism sheet
WO2011068212A1 (en) * 2009-12-03 2011-06-09 大日本印刷株式会社 Optical sheet roll and method for manufacturing optical sheet roll, optical sheet, and display device
CN108227168A (en) * 2011-03-30 2018-06-29 3M创新有限公司 Light deflects and light diffusion combination construction
JP5862402B2 (en) * 2012-03-26 2016-02-16 大日本印刷株式会社 Optical element and light emitting panel
US8824050B2 (en) * 2012-04-06 2014-09-02 Svv Technology Innovations, Inc. Daylighting fabric and method of making the same
CN102721004B (en) * 2012-06-29 2014-05-28 深圳大学 Integral micro-optical brightness enhancement film and backlight module thereof
US8934173B2 (en) 2012-08-21 2015-01-13 Svv Technology Innovations, Inc. Optical article for illuminating building interiors with sunlight
RU2551127C1 (en) * 2013-11-07 2015-05-20 Алексей Николаевич Миронов Lamp and optical element therefor
KR102408061B1 (en) 2014-01-22 2022-06-14 쓰리엠 이노베이티브 프로퍼티즈 컴파니 Microoptics for glazing
TWI534388B (en) * 2014-05-30 2016-05-21 明基材料股份有限公司 Transflective light adjusting film and method for manufacturing thereof
US20150354272A1 (en) 2014-06-10 2015-12-10 Sergiy Vasylyev Light-redirecting retractable window covering
US20160011346A1 (en) 2014-07-14 2016-01-14 Sergiy Vasylyev High incidence angle retroreflective sheeting
US20160025288A1 (en) 2014-07-25 2016-01-28 Sergiy Vasylyev Light directing sheeting and systems employing the same
JP6455519B2 (en) * 2014-09-24 2019-01-23 コニカミノルタ株式会社 Prism, prism manufacturing method, mold and sensor chip
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Also Published As

Publication number Publication date
JP2011048383A (en) 2011-03-10
KR20010071935A (en) 2001-07-31
US20010040742A1 (en) 2001-11-15
NZ509362A (en) 2003-04-29
US6700716B2 (en) 2004-03-02
JP4944985B2 (en) 2012-06-06
WO2000072054A1 (en) 2000-11-30
AU774778B2 (en) 2004-07-08
DE19923226A1 (en) 2000-11-23
NO20010312L (en) 2001-01-19
EP1099127B1 (en) 2008-07-09
CN1306625A (en) 2001-08-01
KR100751577B1 (en) 2007-08-28
ATE400828T1 (en) 2008-07-15
DE50015252D1 (en) 2008-08-21
CN1172201C (en) 2004-10-20
NO322124B1 (en) 2006-08-14
EP1099127A1 (en) 2001-05-16
CA2338123C (en) 2011-06-07
NO20010312D0 (en) 2001-01-19
AU4750300A (en) 2000-12-12
JP2003500687A (en) 2003-01-07

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Effective date: 20170420