JP2007066630A - Vehicular map lamp device - Google Patents

Vehicular map lamp device Download PDF

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JP2007066630A
JP2007066630A JP2005249586A JP2005249586A JP2007066630A JP 2007066630 A JP2007066630 A JP 2007066630A JP 2005249586 A JP2005249586 A JP 2005249586A JP 2005249586 A JP2005249586 A JP 2005249586A JP 2007066630 A JP2007066630 A JP 2007066630A
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light sources
lenses
lamp device
map lamp
light
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Yoshihiro Yamaguchi
順弘 山口
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Kojima Industries Corp
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Kojima Press Industry Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To efficiently carry out irradiation within a narrow spot range in a vehicular map lamp device in which a plurality of light sources and lenses are adjacent and a plurality of light sources are mutually neighboring. <P>SOLUTION: In the vehicular map lamp device 10 in which a plurality of the light sources 1, 1' and lenses 3, 3' are adjacent and the plurality of the light sources 1, 1' are mutually neighboring and in which the inside of a cabin is spot-irradiated through the lenses 3, 3' from a plurality of the light sources 1, 1', it is provided with a plurality of the light sources 1, 1' which are mutually neighboring and arranged and a plurality of the lenses 3, 3' which are respectively allotted to a plurality of the light sources 1, 1' and which collect light emitted from the respective light sources 1, 1'. In order that the spot irradiation range of the respective light in which the inside of the cabin is irradiated through a plurality of the lenses 3, 3' respectively from a plurality of the light sources 1, 1' match at a previously determined height, positions of the plurality of the light sources 1, 1' and the plurality of the lenses 3, 3' are determined. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、車両用マップランプ装置に関する。   The present invention relates to a vehicle map lamp device.

従来、車両用マップランプ装置として、乗員が車室内で地図などを読むために、乗員の手元をスポット状の狭い範囲で照射するように、車両前席の中央付近の天井部分に取り付けられているものが知られている。   Conventionally, as a map lamp device for a vehicle, in order for an occupant to read a map or the like in a passenger compartment, it is attached to a ceiling portion near the center of the front seat of the vehicle so that the occupant's hand is irradiated in a spot-like narrow range Things are known.

車両用マップランプ装置の構成としては、ハウジング内の1つの光源と、レンズを備えているものがあり、光源から発した光がレンズを通って車室内をスポット状に照射する(例えば、特許文献1参照。)。   As a configuration of the map lamp device for a vehicle, there is one having a light source in a housing and a lens, and light emitted from the light source irradiates the vehicle interior in a spot shape through the lens (for example, Patent Documents). 1).

特開2002−254982号公報JP 2002-254982 A

ところが、上記装置では、光源が1つしかないため、照度が低いという問題がある。仮に、照度を上げるために単に印加電圧を上げる方法を採用しても、消費電力が上昇してしまい、効率よく照射できない。   However, the above apparatus has a problem that the illuminance is low because there is only one light source. Even if a method of simply increasing the applied voltage is employed to increase the illuminance, the power consumption increases and irradiation cannot be performed efficiently.

また、上記問題の解決策として、光源の数を2つに増やす方法を採用した場合には、図3及び4に示すように、2つの光源1,1´からの光は、レンズ形成板2上に設けられたフレネルレンズ3,3´を通して車室内に照射される。しかしながら、マップランプ装置の寸法の制約に起因して、光源1,1´とレンズ3が近接していることと、光源1,1´同士が接していることから、2つの光源1,1´をどのように配置しても、照射範囲は、2つの光源1,1´からのそれぞれの円形の照射範囲A、Bが合わさった瓢箪形のようになり、照度にむらがでてしまい、やはり、効率よく照射することができない。 As a solution to the above problem, when a method of increasing the number of light sources to two is adopted, as shown in FIGS. 3 and 4, the light from the two light sources 1 and 1 ' The vehicle interior is irradiated through the Fresnel lenses 3, 3 'provided above. However, map lamp device due to size constraints, and the light source 1, 1 'and the lens 3 are close, since the light source 1 and 1' are in contact with each other next to the two light sources 1,1 No matter how 'is arranged, the irradiation range will be like a bowl shape combining the circular irradiation ranges A and B from the two light sources 1 and 1 ′, and the illuminance will be uneven, After all, it cannot be irradiated efficiently.

上記問題点を鑑み、本発明の目的は、複数の光源とレンズが近接しかつ複数の光源同士が接している車両用マップランプ装置において、スポット状の狭い範囲で効率よく照射することである。 In view of the above problems, an object of the present invention, a plurality of light sources and lenses are close and the plurality of light sources between vehicle map lamp device in contact with neighboring is to irradiate efficiently in a narrow range of spots .

本発明の請求項1に係る車両用マップランプ装置によれば、複数の光源(1,1´)とレンズ(3,3´)が近接しかつ前記複数の光源(1,1´)同士が接しており、かつ前記複数の光源(1,1´)から前記レンズ(3,3´)を通して車室内をスポット状に照射する車両用マップランプ装置(10)において、互いに接配置された複数の光源(1,1´)と、前記複数の光源(1,1´)のそれぞれに1つずつ割り当てられてそれぞれの光源(1、1´)から発した光を集光する複数のレンズ(3,3´)とを備え、前記複数の光源(1,1´)の各々から前記複数のレンズ(3,3´)を通して車室内に照射されるそれぞれの光のスポット状照射範囲が予め定めた高さにおいて一致するように、前記複数の光源(1,1´)及び前記複数のレンズ(3,3´)が位置決めされている。これにより、複数の光源(1,1´)からの光が同一範囲に集光されることが保証され、効率よく照射することができる。 According to the vehicle map lamp device of the present invention, the plurality of light sources (1, 1 ′) and the lens (3, 3 ′) are close to each other, and the plurality of light sources (1, 1 ′) are connected to each other. in contact next, and in the plurality of light sources (1, 1 ') from the lens (3, 3') for a vehicle map lamp unit for irradiating a passenger compartment in a spot shape through (10), which is neighbor each other A plurality of light sources (1, 1 ') and a plurality of lenses that are assigned to each of the plurality of light sources (1, 1') and collect light emitted from the light sources (1, 1 '). (3, 3 ′), and a spot-shaped irradiation range of each light irradiated from the plurality of light sources (1, 1 ′) to the vehicle interior through the plurality of lenses (3, 3 ′) in advance. The plurality of light sources (1, 1 ′) and the plurality of light sources so as to coincide at a predetermined height Lenses (3, 3 ') is positioned. Thereby, it is ensured that the light from a plurality of light sources (1, 1 ′) is collected in the same range, and can be efficiently irradiated.

また、本発明の請求項2に係る車両用マップランプ装置によれば、前記複数のレンズ(3,3´)は、フレネルレンズである。   According to the vehicular map lamp device of the present invention, the plurality of lenses (3, 3 ′) are Fresnel lenses.

また、本発明の請求項3に係る車両用マップランプ装置によれば、前記複数のレンズ(3,3´)は、共通のレンズ形成板(2)に加工されている。これにより、レンズ形成板(2)の製造コストを低減することができる。   According to the vehicle map lamp device of the present invention, the plurality of lenses (3, 3 ′) are processed into a common lens forming plate (2). Thereby, the manufacturing cost of a lens formation board (2) can be reduced.

また、本発明の請求項4に係る車両用マップランプ装置によれば、前記レンズ形成板(2)のレンズ加工部(3,3´)以外の領域は、光をランダムに散乱させるように形成されている。これにより、レンズ形成板(2)のレンズ部(3,3´)以外の領域から照射される光が、レンズ部(3,3´)から照射される光の照射範囲を乱すことを防ぎ、複数の光源(1,1´)からの光が同一範囲に集光されることをより確実に保証することができる。   According to the vehicle map lamp device of claim 4 of the present invention, the region other than the lens processing portion (3, 3 ') of the lens forming plate (2) is formed so as to randomly scatter light. Has been. Thereby, it prevents that the light irradiated from areas other than the lens part (3, 3 ') of the lens forming plate (2) disturbs the irradiation range of the light irradiated from the lens part (3, 3'), It can be ensured more reliably that light from the plurality of light sources (1, 1 ′) is collected in the same range.

また、本発明の請求項5に係る車両用マップランプ装置によれば、前記複数の光源(1,1´)及び前記レンズ形成板(2)がハウジング(4)に取り付けられ、前記レンズ形成板(2)が前記ハウジング(4)の一部を形成している。   According to the vehicle map lamp device of the present invention, the plurality of light sources (1, 1 ′) and the lens forming plate (2) are attached to the housing (4), and the lens forming plate (2) forms part of the housing (4).

また、本発明の請求項6に係る車両用マップランプ装置によれば、前記複数の光源(1,1´)は、前記割り当てられた複数のレンズ(3,3´)に向けられたLEDである。このように、光源として指向性の強いLEDを採用することにより、各光源(1,1´)からの光を、ほとんど拡散することなく、各光源(1,1´)に割り当てられたレンズ(3,3´)に通すことができ、高い光の照度を保証することができる。   Moreover, according to the map lamp device for a vehicle according to claim 6 of the present invention, the plurality of light sources (1, 1 ′) are LEDs directed to the plurality of assigned lenses (3, 3 ′). is there. In this way, by adopting a highly directional LED as a light source, the light (1, 1 ') assigned to each light source (1, 1') is hardly diffused. 3, 3 '), and high light illuminance can be guaranteed.

また、本発明の請求項7に係る車両用マップランプ装置によれば、前記複数の光源(1,1´)の各々から前記割り当てられた複数のレンズ(3,3´)の各々へ延びている光路を分離するように、前記複数の光源(1,1´)の間に、仕切り板が設けられている。これにより、複数の光源(1,1´)からの光が割り当てられたレンズ(3,3´)以外のレンズ(3,3´)に通ってしまうのを防ぐことができ、複数の光源(1,1´)からの光が同一範囲に集光されることをより確実に保証することができる。   In the vehicle map lamp device according to claim 7 of the present invention, each of the plurality of light sources (1, 1 ′) extends to each of the plurality of assigned lenses (3, 3 ′). A partition plate is provided between the plurality of light sources (1, 1 ′) so as to separate the existing optical paths. Accordingly, it is possible to prevent light from the plurality of light sources (1, 1 ′) from passing through the lens (3, 3 ′) other than the assigned lens (3, 3 ′). 1,1 ′) can be more reliably ensured that the light from the same range is collected.

以下、本発明の実施形態について図面を参照しつつ詳細に説明する。図1は、本発明の車両用マップランプ装置の原理を説明するための平面図であり、図2は、その断面図である。なお、図1及び2では、車両前席の中央付近の天井部分に取り付けられている本発明のマップランプ装置10が模式的に示されている。   Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a plan view for explaining the principle of a map lamp device for a vehicle according to the present invention, and FIG. 2 is a sectional view thereof. 1 and 2 schematically show the map lamp device 10 of the present invention attached to the ceiling portion near the center of the front seat of the vehicle.

本発明のマップランプ装置10は、ハウジング4を備えている。このハウジング4内には、互いに接した2つの光源1,1´が、これら光源1,1´に近接したフレネルレンズ3,3´に向けられてプリント基板面P上に配置されている。また、レンズ形成板2が、ハウジング4の一部を形成するようにハウジング4の底面に取り付けられている。レンズ形成板2は、集光する機能を有するレンズ3、3´の領域と、光をランダムに散乱させるように、例えば皺がかけられている領域とで構成されている。 The map lamp device 10 of the present invention includes a housing 4. This is housing 4, are arranged two light sources 1 and 1 'is in contact next to each other, directed to the Fresnel lens 3, 3' close to the light sources 1, 1 'in the printed circuit board plane P. The lens forming plate 2 is attached to the bottom surface of the housing 4 so as to form a part of the housing 4. The lens forming plate 2 includes a region of lenses 3 and 3 ′ having a function of condensing light and a region that is for example wrinkled so as to randomly scatter light.

レンズ形成板2における2つのフレネルレンズ3,3´は、図1に示すように、2つの光源1,1´のそれぞれに1つずつ割り当てられて加工されている。なお、図1の例では、2つのフレネルレンズ3,3´は、その周縁が重複した形状である。これら光源1,1´及びレンズ3,3´の位置については、光源1からレンズ3を通して車室内に集光される光のスポット状範囲と、光源1´からレンズ3´を通して車室内に集光される光のスポット状範囲が、例えば、コンソール近傍(図示せず)の高さなどの予め定めた高さMにおいて一致するように決定する。これにより、乗員の手元には、2つの光源1,1´からの光が同一範囲に集光されることが保証され、光を効率よく照射することができるという効果がある。   As shown in FIG. 1, two Fresnel lenses 3 and 3 ′ on the lens forming plate 2 are assigned to each of the two light sources 1 and 1 ′ and processed. In the example of FIG. 1, the two Fresnel lenses 3 and 3 ′ have shapes in which the peripheral edges overlap. Regarding the positions of these light sources 1 and 1 'and lenses 3 and 3', the spot-shaped range of light collected from the light source 1 through the lens 3 into the vehicle interior and the light source 1 'through the lens 3' and condensed into the vehicle interior. The spot-like range of the light to be emitted is determined so as to coincide at a predetermined height M such as the height of the vicinity of the console (not shown). As a result, it is ensured that the light from the two light sources 1 and 1 ′ is collected in the same range at the passenger's hand, and there is an effect that the light can be efficiently irradiated.

また、光源1,1´として、指向性の強いLED(発光ダイオード)を採用することが好適である。各光源1,1´からの光を、ほとんど拡散することなく、各光源1,1´に割り当てられたレンズ3,3´に通すことができ、高い光の照度を保証することができ、光をより効率よく照射することができる。   Moreover, it is suitable to employ | adopt LED (light emitting diode) with strong directivity as the light sources 1 and 1 '. The light from each light source 1, 1 ′ can pass through the lenses 3, 3 ′ assigned to each light source 1, 1 ′ without almost diffusing, ensuring high light illuminance, Can be irradiated more efficiently.

また、別の実施例として、光源1と光源1´の間において、光源1からレンズ3へ延びている光路(図示せず)と、光源1´からレンズ3´へ延びている光路(図示せず)とを分離するように、仕切り板を設けた構成とすることもできる。これにより、光源1、1´からの光が、割り当てられたレンズ3、3´以外のレンズ3´、3へ侵入することに起因して、予め定めた照射範囲を乱すことを防ぐことができ、2つの光源1,1´からの光が同一範囲に集光されることをより確実に保証することができる。   As another example, between the light source 1 and the light source 1 ′, an optical path (not shown) extending from the light source 1 to the lens 3 and an optical path (not shown) extending from the light source 1 ′ to the lens 3 ′. It is also possible to adopt a configuration in which a partition plate is provided so as to be separated from each other. Thereby, it is possible to prevent the predetermined irradiation range from being disturbed due to the light from the light sources 1 and 1 'entering the lenses 3' and 3 other than the assigned lenses 3 and 3 '. It can be ensured more reliably that the light from the two light sources 1 and 1 'is collected in the same range.

以上の説明では、光源1,1´とレンズ3,3´の数が2つである例を説明したが、当然、光源1,1´とレンズ3,3´の数は3つ以上であっても、本発明を同様に適用できる。   In the above description, the example in which the number of the light sources 1 and 1 ′ and the lenses 3 and 3 ′ is two has been described. Of course, the number of the light sources 1 and 1 ′ and the lenses 3 and 3 ′ is three or more. However, the present invention can be similarly applied.

また、以上の説明では、本実施形態で使用するレンズ3,3´としてフレネルレンズを例に取って説明したが、スポット状に集光する機能を有するものであれば、他のレンズ、例えば、球面レンズ、非球面レンズ、シリンドリカルレンズ、トロイダルレンズ、グリンレンズ又は回折レンズでもよい。   In the above description, the Fresnel lens is described as an example of the lenses 3 and 3 ′ used in the present embodiment. However, other lenses such as those having a function of condensing in a spot shape, for example, A spherical lens, an aspherical lens, a cylindrical lens, a toroidal lens, a grind lens, or a diffraction lens may be used.

本発明の車両用マップランプ装置の原理を説明するための平面図である。It is a top view for demonstrating the principle of the map lamp apparatus for vehicles of this invention. 本発明の車両用マップランプ装置の原理を説明するための断面図である。It is sectional drawing for demonstrating the principle of the map lamp apparatus for vehicles of this invention. 従来の車両用マップランプ装置の原理を説明するための平面図である。It is a top view for demonstrating the principle of the conventional map lamp apparatus for vehicles. 従来の車両用マップランプ装置の原理を説明するための断面図である。It is sectional drawing for demonstrating the principle of the conventional map lamp apparatus for vehicles.

符号の説明Explanation of symbols

1 光源
1´ 光源
2 レンズ形成板
3 レンズ
3´ レンズ
4 ハウジング
10 マップランプ装置
DESCRIPTION OF SYMBOLS 1 Light source 1 'Light source 2 Lens formation board 3 Lens 3' Lens 4 Housing 10 Map lamp apparatus

Claims (7)

複数の光源(1,1´)とレンズ(3,3´)が近接しかつ前記複数の光源(1,1´)同士が接しており、かつ前記複数の光源(1,1´)から前記レンズ(3,3´)を通して車室内をスポット状に照射する車両用マップランプ装置(10)において、
互いに接配置された複数の光源(1,1´)と、
前記複数の光源(1,1´)のそれぞれに1つずつ割り当てられてそれぞれの光源(1、1´)から発した光を集光する複数のレンズ(3,3´)とを備え、
前記複数の光源(1,1´)の各々から前記複数のレンズ(3,3´)を通して車室内に照射されるそれぞれの光のスポット状照射範囲が予め定めた高さにおいて一致するように、前記複数の光源(1,1´)及び前記複数のレンズ(3,3´)が位置決めされていることを特徴とする車両用マップランプ装置(10)。
A plurality of light sources (1, 1 ') and lenses (3, 3') are adjacent and the plurality of light sources (1, 1 ') to each other in contact with neighboring and from said plurality of light sources (1, 1') In the vehicle map lamp device (10) for irradiating the vehicle interior in a spot shape through the lens (3, 3 ′),
A plurality of light sources (1, 1 ') which are adjacency each other,
A plurality of lenses (3, 3 '), each of which is assigned to each of the plurality of light sources (1, 1') and collects light emitted from each of the light sources (1, 1 ');
In order that the spot-like irradiation ranges of the respective lights irradiated from each of the plurality of light sources (1, 1 ′) through the plurality of lenses (3, 3 ′) to the vehicle interior coincide at a predetermined height, The vehicle map lamp device (10), wherein the plurality of light sources (1, 1 ') and the plurality of lenses (3, 3') are positioned.
前記複数のレンズ(3,3´)は、フレネルレンズであることを特徴とする請求項1に記載の車両用マップランプ装置(10)。   The map lamp device (10) for a vehicle according to claim 1, wherein the plurality of lenses (3, 3 ') are Fresnel lenses. 前記複数のレンズ(3,3´)は、共通のレンズ形成板(2)に加工されていることを特徴とする請求項1又は2に記載の車両用マップランプ装置(10)。   The map lamp device (10) for a vehicle according to claim 1 or 2, wherein the plurality of lenses (3, 3 ') are processed into a common lens forming plate (2). 前記レンズ形成板(2)のレンズ加工部(3,3´)以外の領域は、光をランダムに散乱させるように形成されていることを特徴とする請求項3に記載の車両用マップランプ装置(10)。   4. The map lamp device for a vehicle according to claim 3, wherein the region other than the lens processing portion (3, 3 ′) of the lens forming plate (2) is formed so as to randomly scatter light. 5. (10). 前記複数の光源(1,1´)及び前記レンズ形成板(2)がハウジング(4)に取り付けられ、前記レンズ形成板(2)が前記ハウジング(4)の一部を形成している請求項3又は4に記載の車両用マップランプ装置(10)。   The plurality of light sources (1, 1 ') and the lens forming plate (2) are attached to a housing (4), and the lens forming plate (2) forms part of the housing (4). The vehicle map lamp device (10) according to 3 or 4. 前記複数の光源(1,1´)は、前記割り当てられた複数のレンズ(3,3´)に向けられたLEDであることを特徴とする請求項1〜5のいずれか1項に記載の車両用マップランプ装置(10)。   6. The device according to claim 1, wherein the plurality of light sources (1, 1 ′) are LEDs directed toward the plurality of assigned lenses (3, 3 ′). A map lamp device for a vehicle (10). 前記複数の光源(1,1´)の各々から前記割り当てられた複数のレンズ(3,3´)の各々へ延びている光路を分離するように、前記複数の光源(1,1´)の間に、仕切り板が設けられていることを特徴とする請求項1〜6のいずれか1項に記載の車両用マップランプ装置(10)。   The plurality of light sources (1, 1 ') are separated so as to separate optical paths extending from each of the plurality of light sources (1, 1') to each of the plurality of assigned lenses (3, 3 '). The map lamp device (10) for vehicles according to any one of claims 1 to 6, wherein a partition plate is provided between them.
JP2005249586A 2005-08-30 2005-08-30 Vehicular map lamp device Pending JP2007066630A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015527948A (en) * 2012-06-19 2015-09-24 エージーシー グラス ユーロップ Sunroof including lighting means
DE102018209128A1 (en) 2017-06-15 2018-12-20 Yazaki Corporation Interior lighting lamp
DE102018209124A1 (en) 2017-06-15 2018-12-20 Yazaki Corporation Interior lighting lamp

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Publication number Priority date Publication date Assignee Title
JPH08132960A (en) * 1994-11-11 1996-05-28 Nissan Diesel Motor Co Ltd Lens for spot lamp
JP2002008410A (en) * 2000-06-20 2002-01-11 Ccs Inc Lighting equipment
JP2003095015A (en) * 2001-09-21 2003-04-03 Ichikoh Ind Ltd Room lamp for vehicle
JP2005186884A (en) * 2003-12-26 2005-07-14 Hayashi Telempu Co Ltd Illumination module

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08132960A (en) * 1994-11-11 1996-05-28 Nissan Diesel Motor Co Ltd Lens for spot lamp
JP2002008410A (en) * 2000-06-20 2002-01-11 Ccs Inc Lighting equipment
JP2003095015A (en) * 2001-09-21 2003-04-03 Ichikoh Ind Ltd Room lamp for vehicle
JP2005186884A (en) * 2003-12-26 2005-07-14 Hayashi Telempu Co Ltd Illumination module

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015527948A (en) * 2012-06-19 2015-09-24 エージーシー グラス ユーロップ Sunroof including lighting means
DE102018209128A1 (en) 2017-06-15 2018-12-20 Yazaki Corporation Interior lighting lamp
DE102018209124A1 (en) 2017-06-15 2018-12-20 Yazaki Corporation Interior lighting lamp
US11299092B2 (en) 2017-06-15 2022-04-12 Yazaki Corporation Indoor illumination lamp

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