JPH10508704A - 拡散光線のための中空ライト・ガイド - Google Patents
拡散光線のための中空ライト・ガイドInfo
- Publication number
- JPH10508704A JPH10508704A JP8514917A JP51491796A JPH10508704A JP H10508704 A JPH10508704 A JP H10508704A JP 8514917 A JP8514917 A JP 8514917A JP 51491796 A JP51491796 A JP 51491796A JP H10508704 A JPH10508704 A JP H10508704A
- Authority
- JP
- Japan
- Prior art keywords
- light
- light guide
- octature
- cover
- prism
- 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
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
- G02B6/02—Optical fibres with cladding with or without a coating
- G02B6/032—Optical fibres with cladding with or without a coating with non solid core or cladding
-
- 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
-
- 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
-
- 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
- G02B6/0096—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the lights guides being of the hollow type
-
- 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
-
- 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
- Y10S385/00—Optical waveguides
- Y10S385/901—Illuminating or display apparatus
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Planar Illumination Modules (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.光源を含むライト・ガイドであって、 (a)第1のオクタチュア対称方向(44)に直交する方向に延びる一定形状 の横断面と、前記第1のオクタチュア対称方向(44)に平行に延びる光学中心 線(50)とを有するプリズム・ライト・ガイド壁材から形成された外側プリズ ム・ライト・ガイド(48)と、 (i)前記ライト・ガイド壁材の複数の表面が第1のオクタチュア対称方向 (44)に対して実質的にオクタチュアの関係にあることと、 (ii)前記壁材の任意の内面上の任意のポイントにおける面直交ベクトル (46)が前記ポイントから光学中心線(50)に直交して延びる第1の仮想線 に対して実質的に平行であるか、または同第1の仮想線に対して実質的に直交す ることと、 (b)前記光源から放射された大半の光線を遮断すべく光学中心線(50)の 周囲において円筒対称をなすように前記ガイド(48)内において光源の周囲に 位置決めされたカバー(52)と、前記カバー(52)がプリズム・ライト・ガ イド壁材から形成されていることと、 (i)前記カバー壁材の複数の表面はカバー(52)の任意のポイント(5 4)において、空間的に変化する第2のオクタチュア対称方向(56)に対して 実質的にオクタチュアの関係にあることと、前記ポイント(54)において、第 2のオクタチュア対称方向(56)は、 (A)前記第1のオクタチュア対称方向(44)に対して直交する方向で あることと、 (B)前記カバー上のポイント(54)から光学中心線(50)に直交し て延びる第2の仮想線(58)に直交する方向であることと、 (ii)前記カバー(52)の任意の外面上の任意のポイントにおける面直 交ベクトルは第1のオクタチュア対称方向(44)に対して実質的に平行である か、または同第1のオクタチュア対称方向(44)に実質的に直交することと、 (iii)前記カバー(52)は同カバーの内面上に入射した光線がライト・ガ イド壁材に向かい、かつ同ライト・ガイド壁材を貫通して伝搬することを実質的 に防止すべく、光学中心線(50)に十分近い領域内に配置されていることを含 むライト・ガイド。 2.前記カバー(52)は円筒体を形成している請求項1に記載のライト・ガイ ド。 3.(a)前記円筒体は長さ“l”及び直径“d”を有することと、 (b)前記長さ“l”はライト・ガイドの長さより短いことと、 (c)前記円筒体の各端部は光源から直径“d”の1.65倍を越す長さ延び ていること を含む請求項2に記載のライト・ガイド。 4.前記ライト・ガイド(48)は円筒体を形成している請求項1乃至3のいず れか一項に記載のライト・ガイド。 5.前記ライト・ガイド(48,32)及びカバー(52,30)はそれぞれ光 学中心線に交わる平坦な金属リフレクタ(34)によって切取られた同心をなす 部分的な円筒体を形成している請求項1乃至3のいずれか一項に記載のライト・ ガイド。 6.前記プリズム・ライト・ガイドは、 (a)ガイドに沿った選択された複数のポイントにおいて制御された光線の放 射を行う光線抽出手段と、 (b)ガイドの互いに対向する2つの端部のいずれか一方を通じた光線の放射 を防止する端部リフレクタ手段と を有する請求項1乃至3のいずれか一項に記載のライト・ガイド。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/333,340 | 1994-11-02 | ||
US333,340 | 1994-11-02 | ||
US08/333,340 US5481637A (en) | 1994-11-02 | 1994-11-02 | Hollow light guide for diffuse light |
PCT/CA1995/000613 WO1996014597A1 (en) | 1994-11-02 | 1995-10-27 | Hollow light guide for diffuse light |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH10508704A true JPH10508704A (ja) | 1998-08-25 |
JP3032016B2 JP3032016B2 (ja) | 2000-04-10 |
Family
ID=23302380
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8514917A Expired - Fee Related JP3032016B2 (ja) | 1994-11-02 | 1995-10-27 | 拡散光線のための中空ライト・ガイド組立体 |
Country Status (7)
Country | Link |
---|---|
US (1) | US5481637A (ja) |
EP (1) | EP0789854B1 (ja) |
JP (1) | JP3032016B2 (ja) |
CA (1) | CA2200441C (ja) |
DE (1) | DE69507503T2 (ja) |
NO (1) | NO971856L (ja) |
WO (1) | WO1996014597A1 (ja) |
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US6473554B1 (en) | 1996-12-12 | 2002-10-29 | Teledyne Lighting And Display Products, Inc. | Lighting apparatus having low profile |
US6031958A (en) * | 1997-05-21 | 2000-02-29 | Mcgaffigan; Thomas H. | Optical light pipes with laser light appearance |
US5901266A (en) * | 1997-09-04 | 1999-05-04 | The University Of British Columbia | Uniform light extraction from light guide, independently of light guide length |
US6134092A (en) * | 1998-04-08 | 2000-10-17 | Teledyne Lighting And Display Products, Inc. | Illumination device for non-emissive displays |
JP2002511633A (ja) * | 1998-04-15 | 2002-04-16 | ミネソタ マイニング アンド マニュファクチャリング カンパニー | 光導管照明装置用取付組立体 |
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US7872631B2 (en) * | 2004-05-04 | 2011-01-18 | Sharp Laboratories Of America, Inc. | Liquid crystal display with temporal black point |
US7023451B2 (en) * | 2004-06-14 | 2006-04-04 | Sharp Laboratories Of America, Inc. | System for reducing crosstalk |
US7556836B2 (en) * | 2004-09-03 | 2009-07-07 | Solae, Llc | High protein snack product |
US7898519B2 (en) * | 2005-02-17 | 2011-03-01 | Sharp Laboratories Of America, Inc. | Method for overdriving a backlit display |
US8050511B2 (en) * | 2004-11-16 | 2011-11-01 | Sharp Laboratories Of America, Inc. | High dynamic range images from low dynamic range images |
US7525528B2 (en) * | 2004-11-16 | 2009-04-28 | Sharp Laboratories Of America, Inc. | Technique that preserves specular highlights |
US8050512B2 (en) | 2004-11-16 | 2011-11-01 | Sharp Laboratories Of America, Inc. | High dynamic range images from low dynamic range images |
US7180779B2 (en) * | 2005-07-11 | 2007-02-20 | Atmel Corporation | Memory architecture with enhanced over-erase tolerant control gate scheme |
US9143657B2 (en) * | 2006-01-24 | 2015-09-22 | Sharp Laboratories Of America, Inc. | Color enhancement technique using skin color detection |
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EP1887389A3 (en) * | 2006-08-11 | 2008-03-05 | LG Electronics Inc. | Light pipe having a structure of enhancing an emission of a light |
US7565050B2 (en) * | 2006-10-13 | 2009-07-21 | Lg Electronics, Inc. | Light pipe having an improved structure of prisms |
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-
1994
- 1994-11-02 US US08/333,340 patent/US5481637A/en not_active Expired - Lifetime
-
1995
- 1995-10-27 DE DE69507503T patent/DE69507503T2/de not_active Expired - Lifetime
- 1995-10-27 JP JP8514917A patent/JP3032016B2/ja not_active Expired - Fee Related
- 1995-10-27 WO PCT/CA1995/000613 patent/WO1996014597A1/en active IP Right Grant
- 1995-10-27 EP EP95934577A patent/EP0789854B1/en not_active Expired - Lifetime
- 1995-10-27 CA CA002200441A patent/CA2200441C/en not_active Expired - Fee Related
-
1997
- 1997-04-22 NO NO971856A patent/NO971856L/no unknown
Also Published As
Publication number | Publication date |
---|---|
CA2200441A1 (en) | 1996-05-17 |
EP0789854A1 (en) | 1997-08-20 |
NO971856L (no) | 1997-07-02 |
EP0789854B1 (en) | 1999-01-20 |
CA2200441C (en) | 2002-07-30 |
DE69507503T2 (de) | 2009-09-17 |
WO1996014597A1 (en) | 1996-05-17 |
DE69507503D1 (de) | 1999-03-04 |
JP3032016B2 (ja) | 2000-04-10 |
NO971856D0 (no) | 1997-04-22 |
US5481637A (en) | 1996-01-02 |
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