WO2000008381A1 - Light source device - Google Patents

Light source device Download PDF

Info

Publication number
WO2000008381A1
WO2000008381A1 PCT/JP1999/003991 JP9903991W WO0008381A1 WO 2000008381 A1 WO2000008381 A1 WO 2000008381A1 JP 9903991 W JP9903991 W JP 9903991W WO 0008381 A1 WO0008381 A1 WO 0008381A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
light source
source device
optical waveguide
light guide
Prior art date
Application number
PCT/JP1999/003991
Other languages
French (fr)
Japanese (ja)
Inventor
Kohichi Ushikubo
Original Assignee
Chuomusen Co., Ltd.
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 Chuomusen Co., Ltd. filed Critical Chuomusen Co., Ltd.
Publication of WO2000008381A1 publication Critical patent/WO2000008381A1/en

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
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0051—Diffusing sheet or layer

Definitions

  • the present invention relates to a light source device that irradiates light onto an observation surface and obtains uniform brightness over the entire surface of the observation surface.
  • a light source device for brightening the observation surface illuminates light emitted from the light source 1 to the light guide member 7 and illuminates the light diffused through the light guide member 7 to the observation surface 5 as shown in FIG. The whole area was brightened.
  • the disclosure of this invention, c inventions aims at obtaining the entire surface Wataruconnection uniform brightness of the thus observed surface to eliminate the above inconvenience
  • the present invention relates to a method of using a light guide material for refracting light, a light guide material for diffusing light, and a light guide material for giving directionality to light, and changing an irradiation direction of a light source.
  • a method using a mechanism and a light guide material for diffusing light is disclosed.
  • FIG. 1 is a schematic diagram of one embodiment of a light source device according to the present invention
  • FIG. 2 is a schematic diagram of another embodiment of the light source device according to the present invention
  • FIG. 3 is a conventional light source device. It is a schematic diagram of an example of. BEST MODE FOR CARRYING OUT THE INVENTION
  • Fig. 1 shows a light guide material that refracts light, a light guide material that diffuses light, and a light guide material that gives light directivity.
  • the light emitted from light source 1 is The light is refracted by the light guide material 2 that has the effect of refracting light, then passes through the light guide material 3 that has the effect of diffusing light, and then passes through the light guide material 4 that controls the directivity of light.
  • the surface of 5 is irradiated.
  • the light emitted from the light source 1 is engraved with a refracting light guide 2 (a pattern that refracts light by molding, printing, laser processing, or the like, and the light distribution is determined by the density and depth of the pattern).
  • a refracting light guide 2 a pattern that refracts light by molding, printing, laser processing, or the like, and the light distribution is determined by the density and depth of the pattern.
  • the amount of light emitted from the side closer to the light source 1 is larger than the amount of light emitted from the side farther from the light source 1, and most of the light emitted from the directivity control light guide 4 is emitted vertically. Is done. As a result, a sufficient amount of light can be secured even on the lower surface of the observation surface 5 farthest from the light source 1, and uniform brightness can be obtained over the entire surface of the observation surface 5.
  • Fig. 2 shows a light source 11 with a mechanism to change the irradiation direction to obtain an observation surface with uniform brightness in a different way from Fig. 1, a light-guiding material that diffuses light, and directivity to light. This shows a method using a light guide material to be provided.
  • the light reflected by the reflector 6 covering the light source 1 and emitted from the light source 1 enters the light guide 3 for diffusion, and the light distribution between the dense portion and the sparse portion of the light is gentle. It is spread to become.
  • the diffused light is a light guide for directivity control. After entering the material 4, it is irradiated with a directivity in the vertical direction onto the observation surface 5. Also, by changing the irradiation direction of the light source 1, the light distribution characteristics of the light can be changed.Therefore, adjust the light distribution to the observation surface 5 with respect to the intensity of the room illumination light or the external light such as sunlight. Can be done. Industrial applicability
  • the light source device can obtain uniform brightness over the entire observation surface with a simple device, and can be used in printing, photography, decoration, and other fields.

Abstract

A uniform brightness is obtained over the entire surface of an observation plane (5) by allowing light output from a light source (1) to pass through a refracting optical waveguide material, a diffusing optical waveguide material and a directivity controlling optical waveguide material, or by combining a light source (11) provided with an illuminating direction changing mechanism, a diffusing optical waveguide material and a directivity controlling optical waveguide material together.

Description

明 細 書 光源装置 技術分野  Description Light source device Technical field
この発明は、 観察面に光を当て、 該観察面の全面に亘つて均一な明るさ を得る光源装置に関する。 背景技術  The present invention relates to a light source device that irradiates light onto an observation surface and obtains uniform brightness over the entire surface of the observation surface. Background art
従来、 観察面を明るくする光源装置は第 3図に示すように光源 1 から出 た光を導光材 7に当て、 導光材 7を通って拡散された光を観察面 5に当 てて全面を明るく していた。  Conventionally, a light source device for brightening the observation surface illuminates light emitted from the light source 1 to the light guide member 7 and illuminates the light diffused through the light guide member 7 to the observation surface 5 as shown in FIG. The whole area was brightened.
しかしながら、 観察面 5と光源 1 間の距離は第 3図から判るように観察 面 5の上方と光源 1 との距離より観察面 5の下方と光源 1 との距離の方 が長くなつている。 その為、 観察面 5の全面に亘つて均一な明るさを得 ることが出来ない。 従って、 この発明は、 上記の不具合を無くすことに よって観察面の全面に亘つて均一な明るさを得ることを目的としている c 発明の開示 However, as can be seen from FIG. 3, the distance between the observation surface 5 and the light source 1 is longer than the distance between the observation surface 5 and the light source 1 above the observation surface 5. For this reason, it is not possible to obtain uniform brightness over the entire observation surface 5. Accordingly, the disclosure of this invention, c inventions aims at obtaining the entire surface Wataru connexion uniform brightness of the thus observed surface to eliminate the above inconvenience
この発明は、 光を屈折させる導光材、 光を拡散させる導光材及び光に指 向性を持たせる導光材を一体化させたものを使用する方法、 及び光源の照 射方向を変える機構と光を拡散させる導光材を使った方法を開示する。 図面の簡単な説明  The present invention relates to a method of using a light guide material for refracting light, a light guide material for diffusing light, and a light guide material for giving directionality to light, and changing an irradiation direction of a light source. A method using a mechanism and a light guide material for diffusing light is disclosed. BRIEF DESCRIPTION OF THE FIGURES
第 1図は本発明にかかる光源装置の一実施例の概略図であり、 第 2図は 本発明になる光源装置の他の実施例の概略図であリ、 第 3図は従来の光源 装置の実施例の概略図である。 発明を実施するための最良の形態 FIG. 1 is a schematic diagram of one embodiment of a light source device according to the present invention, FIG. 2 is a schematic diagram of another embodiment of the light source device according to the present invention, and FIG. 3 is a conventional light source device. It is a schematic diagram of an example of. BEST MODE FOR CARRYING OUT THE INVENTION
この発明をより詳細に説明するために、 添付の図面に従ってこれを説明 する。  The present invention will be described in more detail with reference to the accompanying drawings.
第 1 図は、 光を屈折させる導光材、 光を拡散させる導光材及び光に指向 性を持たせる導光材を一体化させたものを示しており、 光源 1 から出た光 は、 光を屈折させる効果を持つ導光材 2で屈折され、 次いで光を拡散させ る効果を持つ導光材 3を通過し、 次いで光の指向性を制御する導光材 4を 通過して観察面 5の表面に照射させる。  Fig. 1 shows a light guide material that refracts light, a light guide material that diffuses light, and a light guide material that gives light directivity.The light emitted from light source 1 is The light is refracted by the light guide material 2 that has the effect of refracting light, then passes through the light guide material 3 that has the effect of diffusing light, and then passes through the light guide material 4 that controls the directivity of light. The surface of 5 is irradiated.
即ち、 光源 1 から照射された光は屈折用導光材 2 (成型、 印刷、 又はレ 一ザ一加工等により光を屈折するパターンが刻まれており、 該パターンの 疎密や深さによって配光密度が決まる） で屈折される際、 屈折光の密度が 光源 1 に近い側が密に、 光源 1 に遠い側が疎になるように導光され、 次に 拡散用導光材 3にて光の密の部分と光の疎の部分との間が緩やかな光の分 布になるように拡散され、 最後に指向性制御用導光材 4で垂直の方向に指 向性を与えられ、 観察面 5に照射される。 この時、 光源 1 に近い側から出 射される光量が光源 1 に遠い側から出射される光量よりも多くなり、 且つ 指向性制御用導光材 4から照射される光の殆どが垂直に出射される。 その 結果として光源 1 から最も離れている観察面 5の下部面においても十分な 光量を確保出来ることになり、 観察面 5の全面に亘つて均一な明るさを得 ることが出来る。  That is, the light emitted from the light source 1 is engraved with a refracting light guide 2 (a pattern that refracts light by molding, printing, laser processing, or the like, and the light distribution is determined by the density and depth of the pattern). When the light is refracted by the light source, the light is guided so that the density of the refracted light is high on the side close to the light source 1 and low on the side far from the light source 1. The light is diffused so as to form a gradual distribution of light between the light-scattering part and the light-sparse part. Finally, the light is directed in the vertical direction by the directivity control light-guiding material 4, and the observation surface 5 Is irradiated. At this time, the amount of light emitted from the side closer to the light source 1 is larger than the amount of light emitted from the side farther from the light source 1, and most of the light emitted from the directivity control light guide 4 is emitted vertically. Is done. As a result, a sufficient amount of light can be secured even on the lower surface of the observation surface 5 farthest from the light source 1, and uniform brightness can be obtained over the entire surface of the observation surface 5.
第 2図は、 第 1 図とは異なった方法で均一な明るさの観察面を得るため に照射方向を変える機構を持った光源 1 1 と光を拡散させる導光材及び光 に指向性を持たせる導光材を使った方法を示している。  Fig. 2 shows a light source 11 with a mechanism to change the irradiation direction to obtain an observation surface with uniform brightness in a different way from Fig. 1, a light-guiding material that diffuses light, and directivity to light. This shows a method using a light guide material to be provided.
即ち、 光源 1 を蔽つている反射板 6によって反射されて光源 1 から出射 された光は拡散用導光材 3に入り、 光の密の部分と疎の部分との間が緩や かな光分布になるように拡散される。 該拡散された光は指向性制御用導光 材 4に入り、 垂直の方向に指向性を与えられて観察面 5に照射される。 又、 光源 1 の照射方向を変えると光の配光特性を変化させることが出来 るので室内の照明光や太陽光等の外光の強弱に対して観察面 5への配光を 調整することが出来る。 産業上の利用可能性 That is, the light reflected by the reflector 6 covering the light source 1 and emitted from the light source 1 enters the light guide 3 for diffusion, and the light distribution between the dense portion and the sparse portion of the light is gentle. It is spread to become. The diffused light is a light guide for directivity control. After entering the material 4, it is irradiated with a directivity in the vertical direction onto the observation surface 5. Also, by changing the irradiation direction of the light source 1, the light distribution characteristics of the light can be changed.Therefore, adjust the light distribution to the observation surface 5 with respect to the intensity of the room illumination light or the external light such as sunlight. Can be done. Industrial applicability
以上、 説明した如く本発明になる光源装置は、 簡単な装置で観察面全体 に亘つて均一な明るさを得ることが出来るので印刷、 写真、 装飾、 その他 の分野での使用が可能である。  As described above, the light source device according to the present invention can obtain uniform brightness over the entire observation surface with a simple device, and can be used in printing, photography, decoration, and other fields.

Claims

請 求 の 範 囲 The scope of the claims
1 . 任意の光源を用いて一定の面積を均一に光らせる光源装置において、 光を屈折させる導光部材と光を拡散させる導光部材と光に指向性を持たせ る導光部材とを使って均一な明るさの面を得るようにした光源装置。 1. In a light source device that uniformly illuminates a certain area using an arbitrary light source, a light guide member that refracts light, a light guide member that diffuses light, and a light guide member that imparts directivity to light are used. A light source device that obtains a surface with uniform brightness.
2 . 光を屈折させる導光材の替わりに光の照射方向を自由に変えられる機 構を備えた光源を使用した請求項 1記載の光源装置。  2. The light source device according to claim 1, wherein a light source having a mechanism capable of freely changing a light irradiation direction is used instead of the light guide material for refracting light.
PCT/JP1999/003991 1998-08-04 1999-07-26 Light source device WO2000008381A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP10/251732 1998-08-04
JP25173298A JP2000057829A (en) 1998-08-04 1998-08-04 Light source device

Publications (1)

Publication Number Publication Date
WO2000008381A1 true WO2000008381A1 (en) 2000-02-17

Family

ID=17227138

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1999/003991 WO2000008381A1 (en) 1998-08-04 1999-07-26 Light source device

Country Status (2)

Country Link
JP (1) JP2000057829A (en)
WO (1) WO2000008381A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7361740B2 (en) 2002-10-15 2008-04-22 Pdl Biopharma, Inc. Alteration of FcRn binding affinities or serum half-lives of antibodies by mutagenesis

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07113930A (en) * 1993-10-18 1995-05-02 Hamamatsu Photonics Kk Projection device for optical broadcasting
JPH0915426A (en) * 1995-06-26 1997-01-17 Nippon Chemitec Kk Light guiding plate and surface type lighting body using the light guiding plate
JPH09102209A (en) * 1995-08-03 1997-04-15 Nitto Denko Corp Light guide panel, surface light source device, polarized light source device, and liquid-crystal display device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07113930A (en) * 1993-10-18 1995-05-02 Hamamatsu Photonics Kk Projection device for optical broadcasting
JPH0915426A (en) * 1995-06-26 1997-01-17 Nippon Chemitec Kk Light guiding plate and surface type lighting body using the light guiding plate
JPH09102209A (en) * 1995-08-03 1997-04-15 Nitto Denko Corp Light guide panel, surface light source device, polarized light source device, and liquid-crystal display device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7361740B2 (en) 2002-10-15 2008-04-22 Pdl Biopharma, Inc. Alteration of FcRn binding affinities or serum half-lives of antibodies by mutagenesis

Also Published As

Publication number Publication date
JP2000057829A (en) 2000-02-25

Similar Documents

Publication Publication Date Title
JP3828402B2 (en) BACKLIGHTING DEVICE, LIQUID CRYSTAL DISPLAY DEVICE USING SAME, AND LIGHTING METHOD FOR LIQUID CRYSTAL DISPLAY DEVICE
JP3483217B2 (en) Image reading device
CN1910399B (en) Reflector and backlight device
KR101163819B1 (en) License plate lamp
JPH11284803A (en) Linear light source unit
ATE540424T1 (en) OPTICAL ILLUMINATION DEVICE, EXPOSURE APPARATUS AND EXPOSURE METHOD
JP7027167B2 (en) Aquarium lighting
KR20120056805A (en) Vehicle lamp
WO2014147505A1 (en) Illumination device with adjustable beam shaper
NZ515195A (en) Lighting optical element for uniform light distribution and anti dazzling effects
JP2010193360A (en) Led light source and image reader
JP6274974B2 (en) Luminous flux control member, light emitting device, and illumination device
WO2000008381A1 (en) Light source device
KR101053951B1 (en) Icicle type light adjustment lens for LED lighting device
JP2004233189A (en) Luminaire and inspection device
JP2010027229A (en) Surface light source device
CN109990242A (en) Optical devices, car light and motor vehicles
KR101666511B1 (en) A lamp apparatus for vehicles
KR200421543Y1 (en) Lighting equipment
JP2011134509A (en) Lighting fixture
KR101158321B1 (en) Light guide plate with laser pattern
JP2000173324A (en) Daylighting device
CN210532297U (en) Lamp light-equalizing lens structure
CN209979889U (en) Light guide plate for illumination and illumination device
JP2006156050A (en) Foot light

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
122 Ep: pct application non-entry in european phase