JP2016223927A - Luminaire - Google Patents

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JP2016223927A
JP2016223927A JP2015111128A JP2015111128A JP2016223927A JP 2016223927 A JP2016223927 A JP 2016223927A JP 2015111128 A JP2015111128 A JP 2015111128A JP 2015111128 A JP2015111128 A JP 2015111128A JP 2016223927 A JP2016223927 A JP 2016223927A
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light
light source
display
incident
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JP6544051B2 (en
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正臣 上野
Masaomi Ueno
正臣 上野
濃 渡部
Atsushi Watabe
濃 渡部
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Nippon Seiki Co Ltd
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Nippon Seiki Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a luminaire that suppresses color-mixed light from reaching a display region even when light sources of different light emission colors are used.SOLUTION: A luminaire comprises: a display plate 2 comprising a first index part lit up by a first light source and a second index part lit up by a second light source having a different lighting color from the first light source; a first light incidence part 5a on which light of the first light source is made incident; a first light guide body 5 which is located behind the first index part and guides the light of the first light source made incident from the first light incidence part 5a to the first index part; a second light incidence part 6a on which light of the second light source is made incident; and a second light guide body 6 which is located behind the second index part and guides the light of the second light source made incident from the second light incidence part 6a to the second index part. The luminaire has a projection part for allowing the light made incident on the first light incidence part 5a and the light made incident on the second light incidence part 6a to travel toward a display plate 2, thereby suppressing light of the light sources from reaching a display region.SELECTED DRAWING: Figure 2

Description

本発明は、光源から発せられた照明光にて表示部を照明する照明装置に関するものである。   The present invention relates to an illumination device that illuminates a display unit with illumination light emitted from a light source.

従来より、例えば指針や複数の表示部のように異なる照明対象をそれぞれ照明するために、複数の同心円状の導光体を備え、この導光体を一体成形する照明装置が知られている。この照明装置は、指針を照明する光源と、指標部を照明する光源と、それぞれの光源に対応した導光体とを有した照明装置であって、複数の導光体を連結部で連結することでコストを削減することができるというものである。   2. Description of the Related Art Conventionally, there has been known an illuminating device that includes a plurality of concentric light guides and integrally molds the light guides to illuminate different illumination objects such as a pointer and a plurality of display units. This illuminating device is an illuminating device having a light source that illuminates a pointer, a light source that illuminates an indicator portion, and a light guide corresponding to each light source, and a plurality of light guides are connected by a connecting portion. This can reduce the cost.

特開２００２−２９６０８０号公報JP 2002-296080 A 特開２００４−２１２１２６号公報JP 2004-212126 A

しかしながら、このような照明装置は、導光体が連結部によって連結されているため、それぞれの照明対象を単独で照明すると、照明対象ではない箇所に光漏れが生じ商品性が低下するという問題を有している。   However, in such an illuminating device, since the light guides are connected by the connecting portion, there is a problem in that when each illumination target is illuminated alone, light leakage occurs in a portion that is not the illumination target, and the merchantability is reduced. Have.

また、異なる発光色の光源で照明する場合、少ない光漏れであっても色が混ざってしまい、混色した光が露光した場合、見た目の品質が劣ってしまうという問題点があった。   In addition, when illuminating with light sources of different emission colors, colors are mixed even if there is little light leakage, and when the mixed light is exposed, the quality of the appearance is inferior.

そこで、本発明は、この問題に鑑みなされたものであり、異なる発光色の光源を用いても、混色した光が表示領域に達することを抑制する照明装置を提供するものである。   Therefore, the present invention has been made in view of this problem, and provides an illuminating device that suppresses mixed light from reaching a display region even when light sources having different emission colors are used.

本発明は、第１の光源によって照明される第１の表示部と、前記第１の光源とは異なる照明色の第２の光源によって照明される第２の表示部と、を有した表示板と、
前記第１の光源の光が入光する第１の入光部と、前記第１の表示部の背後に位置し前記第１の入光部から入光した前記第１の光源の光を前記第１の表示部に導光する第１の導光部と、を有した第１の導光体と、
前記第２の光源の光が入光する第２の入光部と、前記第２の表示部の背後に位置し前記第２の入光部から入光した前記第２の光源の光を前記第２の表示部に導光する第２の導光部と、を有した第２の導光体と、
前記第１の入光部と前記第２の入光部とを連結する連結部と、
を備えた照明装置において、
前記連結部は、前記第１の入光部に入光した光と、前記第２の入光部に入光した光とを前記表示板の方向へ進行させるための突出部を有しているものである。 The present invention provides a display panel having a first display unit illuminated by a first light source, and a second display unit illuminated by a second light source having an illumination color different from that of the first light source. When,
A first light incident portion that receives light from the first light source; and light from the first light source that is located behind the first display portion and is incident from the first light incident portion. A first light guide having a first light guide that guides light to the first display;
A second light incident portion into which the light from the second light source enters; and the light from the second light source that is located behind the second display portion and is incident from the second light incident portion. A second light guide having a second light guide that guides light to the second display,
A connecting portion for connecting the first light incident portion and the second light incident portion;
In a lighting device comprising:
The connecting portion has a protrusion for advancing light incident on the first light incident portion and light incident on the second light incident portion toward the display plate. Is.

また、本発明は、前記突出部は、前記表示板のうち前記第１の表示部と前記第２の表示部とが表示されない遮光部の背面側に形成されているものである。   In the present invention, the protruding portion is formed on the back side of the light shielding portion where the first display portion and the second display portion are not displayed on the display plate.

異なる発光色の光源を用いても、混色した光が表示領域に達することを抑制する照明装置を提供することができる。   Even when light sources of different emission colors are used, it is possible to provide an illumination device that suppresses the mixed light from reaching the display region.

本発明の実施形態を示す正面図。The front view which shows embodiment of this invention. 図１のＡ−Ａ断面図。AA sectional drawing of FIG. 同実施形態の導光体の正面図。The front view of the light guide of the embodiment. 図３のＢ−Ｂ断面図。BB sectional drawing of FIG.

以下、添付図面に基づいて、本発明の実施形態を説明する。照明装置は、表示板２と、第１，第２の光源３，４と、第１，第２の導光体５，６とを備える。   Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. The lighting device includes a display panel 2, first and second light sources 3 and 4, and first and second light guides 5 and 6.

表示板２は、透明樹脂に数字及び目盛りを印刷したものであり、第１の指標部２ａと、第２の指標部２ｂと、遮光部２ｃとを有している。表示板２の第１の指標部２ａは、第１の導光体５の前面に配置され、第１の導光体５より照射される光によって透過照明される。表示板２の第２の指標部２ｂは、第２の導光体６の前面に配置され、第２の導光体６より照射される光によって透過照明される。表示板２の遮光部２ｃは、第１の指標部２ａ及び第２の指標部２ｂの背景となる遮光部２ｃを有している。   The display board 2 is obtained by printing numbers and scales on a transparent resin, and includes a first indicator portion 2a, a second indicator portion 2b, and a light shielding portion 2c. The first indicator portion 2 a of the display panel 2 is disposed on the front surface of the first light guide 5 and is transmitted and illuminated by the light emitted from the first light guide 5. The second indicator portion 2 b of the display panel 2 is disposed on the front surface of the second light guide 6 and is transmitted and illuminated by the light emitted from the second light guide 6. The light-shielding part 2c of the display panel 2 has a light-shielding part 2c as a background of the first index part 2a and the second index part 2b.

第１の光源３は、例えば白色のチップ型発光ダイオードからなり、第１の導光体５の第１の入光部５ａから第１の導光体５の内部に光を供給できるように配設される（図３参照）。第１の光源３は回路基板１０から供給される電力によって発光し、第１の導光体５を介して第１の指標部２ａを透過照明する。   The first light source 3 is made of, for example, a white chip-type light emitting diode, and is arranged so that light can be supplied from the first light incident portion 5 a of the first light guide 5 to the inside of the first light guide 5. (See FIG. 3). The first light source 3 emits light by the electric power supplied from the circuit board 10 and illuminates the first indicator portion 2 a through the first light guide 5.

第２の光源４は、例えば赤色のチップ型発光ダイオードからなり、第２の導光体６の第２の入光部６ａから第２の導光体６の内部に光を供給できるように配設される（図３参照）。第２の光源４は回路基板１０から供給される電力によって発光し、第２の導光体６を介して、第２の指標部２ｂを透過照明する。   The second light source 4 is made of, for example, a red chip-type light emitting diode, and is arranged so that light can be supplied from the second light incident portion 6 a of the second light guide 6 to the inside of the second light guide 6. (See FIG. 3). The second light source 4 emits light by the electric power supplied from the circuit board 10, and illuminates the second indicator portion 2 b through the second light guide 6.

第１の導光体５は、第１の光源３の光が入光する第１の入光部５ａと、第１の指標部２ａへ光を導光する第１の導光部５ｂと、を備えている。   The first light guide 5 includes a first light entrance 5a that receives light from the first light source 3, a first light guide 5b that guides light to the first indicator 2a, It has.

第２の導光体６は、第２の光源４の光が入光する第２の入光部６ａと、第２の指標部２ｂへ光を導光する第２の導光部６ｂと、を備えている。   The second light guide 6 includes a second light entrance 6a into which the light from the second light source 4 enters, a second light guide 6b that guides the light to the second indicator 2b, It has.

第１の入光部５ａは、第１の指標部２ａに面した第１の導光部５ｂの端部から、第１の光源３へ延びる垂れ下がり形状となっている。   The first light incident part 5 a has a hanging shape extending from the end of the first light guide part 5 b facing the first indicator part 2 a to the first light source 3.

第２の入光部６ａは、第２の指標部２ｂに面した第２の導光部６ｂの端部から、第２の光源４へ延びる垂れ下がり形状となっている。   The second light incident portion 6 a has a hanging shape extending from the end portion of the second light guide portion 6 b facing the second indicator portion 2 b to the second light source 4.

第１の入光部５ａと第２の入光部６ａとの間には、連結部８が形成されている。連結部８には、第１の光源３の光と第２の光源４の光とが混色する箇所に、表示板２に向かって混色した光が進行するように表示板２方向へ回路基板１０の板面に対して垂直に突出した突出部８１が形成されている。突出部８１は、表示板２の第１の指標部２ａと第２の指標部２ｂ以外の遮光部２ｃの背面側に位置するように、第１の入光部５ａと第２の入光部６ａとの間であって、第１の導光部５ｂと第２の導光部６ｂよりも表示板２方向へ突出しない形状となっている。また、突出部８１は、光が出射される面Ｐが 曲面からなることで、光が集光されて放射される。   A connecting portion 8 is formed between the first light incident portion 5a and the second light incident portion 6a. In the connecting portion 8, the circuit board 10 is directed toward the display board 2 so that the mixed light travels toward the display board 2 at a location where the light of the first light source 3 and the light of the second light source 4 are mixed. A projecting portion 81 projecting perpendicularly to the plate surface is formed. The first light incident part 5a and the second light incident part are disposed so that the protruding part 81 is located on the back side of the light shielding part 2c other than the first index part 2a and the second index part 2b of the display panel 2. 6a, and has a shape that does not protrude in the direction of the display panel 2 more than the first light guide portion 5b and the second light guide portion 6b. In addition, the projection 81 has a curved surface P from which light is emitted, so that the light is collected and emitted.

ケース体９は、白色樹脂からなるものであり、第１，第２の導光体５，６，回路基板１０等を保持するものである。ケース体９は、第１，第２の導光体５，６の背後に配設され、第１，第２の導光体５，６からの漏光を反射させることにより、効率よく表示板２を照明することができる。   The case body 9 is made of white resin, and holds the first and second light guide bodies 5, 6, the circuit board 10, and the like. The case body 9 is disposed behind the first and second light guides 5 and 6 and reflects light leakage from the first and second light guides 5 and 6, thereby efficiently displaying the display panel 2. Can be illuminated.

回路基板１０は、ガラスエポキシ樹脂等の高熱伝導率の材質からなり、第１，第２の光源３，４と電気的に接続され、第１，第２の光源３，４に電力を供給するものである。   The circuit board 10 is made of a material having high thermal conductivity such as glass epoxy resin, and is electrically connected to the first and second light sources 3 and 4 to supply power to the first and second light sources 3 and 4. Is.

本実施形態のように、第１の光源３によって照明される第１の指標部２ａと、第１の光源３とは異なる照明色の第２の光源４によって照明される第２の指標部２ｂと、を有した表示板２と、第１の光源３の光が入光する第１の入光部５ａと、第１の指標部２ａの背後に位置し第１の入光部５ａから入光した第１の光源３の光を第１の指標部２ａに導光する第１の導光体５と、第２の光源４の光が入光する第２の入光部６ａと、第２の指標部２ｂの背後に位置し第２の入光部６ａから入光した第２の光源４の光を第２の指標部２ｂに導光する第２の導光体６と、第１の入光部５ａと第２の入光部６ａとを連結する連結部８と、を備えた照明装置において、連結部８は、第１の入光部５ａに入光した光と、第２の入光部６ａに入光した光とを表示板２の方向へ進行させるための突出部８１を有していることによって、混色した光を表示板方向へ逃がすことで、光源の光が表示領域に達することを抑制できる。   Like this embodiment, the 1st parameter | index part 2a illuminated by the 1st light source 3 and the 2nd parameter | index part 2b illuminated by the 2nd light source 4 of the illumination color different from the 1st light source 3 are used. And the first light incident part 5a into which the light from the first light source 3 is incident, and the first light incident part 5a located behind the first indicator part 2a. A first light guide 5 that guides the light of the first light source 3 that has been emitted to the first indicator portion 2a; a second light incident portion 6a that the light of the second light source 4 enters; A second light guide 6 that is located behind the second indicator portion 2b and guides the light of the second light source 4 that has entered the second indicator portion 2b to the second indicator portion 2b; In the illuminating device including the connecting portion 8 that connects the light incident portion 5a and the second light incident portion 6a, the connecting portion 8 includes the light incident on the first light incident portion 5a and the second light incident portion. The light incident on the light incident part 6a By having a protrusion 81 for advancing the second direction, by releasing the light mixing to the display panel direction, it can suppress the light source reaches the display region.

また、突出部８１、表示板２のうち第１の指標部２ａと第２の指標部２ｂとが表示されない遮光部２ｃの背面側に形成されていることによって、表示領域ではない遮光部２ｃの背面であって混色しやすい箇所でもある入光部に、表示板方向に突出した突出部８１を設けて、混色した光を表示板方向へ逃がすことで、光源の光が表示領域に達することを抑制できる。   Further, the first indicator portion 2a and the second indicator portion 2b of the protrusion 81 and the display panel 2 are formed on the back side of the light-shielding portion 2c that is not displayed. By providing a projection 81 that protrudes in the direction of the display board in the light incident part that is the back surface and also where color mixing is easy, the light of the light source reaches the display area by letting the mixed color light escape in the direction of the display board. Can be suppressed.

２ 表示板
２ａ 第１の指標部（第１の表示部）
２ｂ 第２の指標部（第２の表示部）
３ 第１の光源
４ 第２の光源
５ 第１の導光体
５ａ 第１の入光部
５ｂ 第１の導光部
６ 第２の導光体
６ａ 第２の入光部
６ｂ 第２の導光部
８ 連結部
９ ケース体
１０ 回路基板
２１ 遮光部
８１ 突出部
2 Display board 2a 1st parameter | index part (1st display part)
2b Second indicator part (second display part)
3 1st light source 4 2nd light source 5 1st light guide 5a 1st light incident part 5b 1st light guide part 6 2nd light guide 6a 2nd light incident part 6b 2nd light guide Optical part 8 Connection part 9 Case body 10 Circuit board 21 Light-shielding part 81 Projection part

Claims (2)

第１の光源によって照明される第１の表示部と、前記第１の光源とは異なる照明色の第２の光源によって照明される第２の表示部と、を有した表示板と、
前記第１の光源の光が入光する第１の入光部と、前記第１の表示部の背後に位置し前記第１の入光部から入光した前記第１の光源の光を前記第１の表示部に導光する第１の導光部と、を有した第１の導光体と、
前記第２の光源の光が入光する第２の入光部と、前記第２の表示部の背後に位置し前記第２の入光部から入光した前記第２の光源の光を前記第２の表示部に導光する第２の導光部と、を有した第２の導光体と、
前記第１の入光部と前記第２の入光部とを連結する連結部と、
を備えた照明装置において、
前記連結部は、前記第１の入光部に入光した光と、前記第２の入光部に入光した光とを前記表示板の方向へ進行させるための突出部を有していることを特徴とする照明装置。 A display panel comprising: a first display unit illuminated by a first light source; and a second display unit illuminated by a second light source of an illumination color different from the first light source;
A first light incident portion that receives light from the first light source; and light from the first light source that is located behind the first display portion and is incident from the first light incident portion. A first light guide having a first light guide that guides light to the first display;
A second light incident portion into which the light from the second light source enters; and the light from the second light source that is located behind the second display portion and is incident from the second light incident portion. A second light guide having a second light guide that guides light to the second display,
A connecting portion for connecting the first light incident portion and the second light incident portion;
In a lighting device comprising:
The connecting portion has a protrusion for advancing light incident on the first light incident portion and light incident on the second light incident portion toward the display plate. A lighting device characterized by that. 前記突出部は、前記表示板のうち前記第１の表示部と前記第２の表示部とが表示されない遮光部の背面側に形成されていることを特徴とする請求項１に記載の照明装置。
2. The illumination device according to claim 1, wherein the projecting portion is formed on a back side of a light shielding portion where the first display portion and the second display portion are not displayed on the display plate. .
JP2015111128A 2015-06-01 2015-06-01 Lighting device Expired - Fee Related JP6544051B2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109203993A (en) * 2017-06-29 2019-01-15 矢崎总业株式会社 Vehicle display device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014232676A (en) * 2013-05-30 2014-12-11 日本精機株式会社 Luminaire

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014232676A (en) * 2013-05-30 2014-12-11 日本精機株式会社 Luminaire

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109203993A (en) * 2017-06-29 2019-01-15 矢崎总业株式会社 Vehicle display device
CN109203993B (en) * 2017-06-29 2021-07-02 矢崎总业株式会社 Vehicle display device

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