JP3545571B2

JP3545571B2 - Pointer lighting structure

Info

Publication number: JP3545571B2
Application number: JP14547997A
Authority: JP
Inventors: 敦也宮脇
Original assignee: Yazaki Corp
Current assignee: Yazaki Corp
Priority date: 1997-06-03
Filing date: 1997-06-03
Publication date: 2004-07-21
Anticipated expiration: 2017-06-03
Also published as: JPH10332440A

Description

【０００１】
【発明の属する技術分野】
本発明は、光源から発せられる光を指針に案内するための指針照明構造に関するものである。
【０００２】
【従来の技術】
この種の指針照明構造は、光源の光を導光板で導くと共に、該導光板の指針軸挿通孔の周辺に形成された反射面により前記光を指針基端部方向へ反射させて指針を照明するようになっている。
【０００３】
図３及び図４は、コンビネーションメータに組み込まれる燃料計に適用された従来の指針照明構造１００を示す。この指針照明構造１００は光源１０１の光Ｌ_１，Ｌ_２，Ｌ_３を導光板１０２で導くと共に、該導光板１０２の指針軸挿通孔１０２ａの周辺に形成された反射面１１０，１１１，１１２により前記光Ｌ_１，Ｌ_２，Ｌ_３を指針基端部２００ａ方向へ反射させて指針２００を照明するようになっている。図３及び図４中、符号１０３は文字板、符号１０３ａは文字板１０３上に施される意匠をそれぞれ示す。
【０００４】
すなわち指針軸挿通孔１０２ａへ導光された光Ｌ_１は、図４（ａ）に示すように傾斜角度θ_０＝４５°で形成した第１反射面１１０で反射されて反射光Ｒ_１となって指針基端部２００ａに入射し、これによって指針２００が発光する。図４（ａ）中、符号２０１は指針軸である。
【０００５】
また指針２００の要発光範囲ａ（図３参照）内で指針軸挿通孔１０２ａの側部に導光された光Ｌ_２は、図４（ｂ）（指針２００を省略して示す）に示すように第２反射面１１１（傾斜角度４５°）で反射されて反射光Ｒ_２となって指針基端部２００ａに入射し、これによって指針２００が発光する。このとき光Ｌ_２は第２反射面１１１で遮られてその先のｂ部分（図４（ｂ））へは到達しないので、このｂ部分からの入射光による指針２００の発光は起こらない。このため従来は前記したｂ部分からの入射光を次のようにして作り出し指針２００の発光を行っている。
【０００６】
すなわち導光板１０２にスリット１１３を形成し、このスリット１１３に導光された光Ｌ_３はスリット１１３の壁面で反射されて前記したｂ部分に形成した第３反射面１１２（傾斜角度４５°）に導光され、この第３反射面１１２で反射されて反射光Ｒ_３となって指針基端部２００ａに入射する入射光となる（図４（ｃ））。この反射光Ｒ_３により指針２００は発光する。
【０００７】
そして指針２００は各反射面１１０，１１１，１１２により発生する各反射光Ｒ_１，Ｒ_２，Ｒ_３により要発光範囲ａ内で発光することができる。
【０００８】
この類似技術は、実開昭６３−１３７８２２号公報，及び実開昭５６−９２９９０号公報に開示されている。
【０００９】
【発明が解決しようとする課題】
しかしながら従来の指針照明構造１００は、スリット１１３と第３反射面１１２とを形成するため設計の複雑化を招くばかりでなく、スリット１１３と文字板１０３の意匠１０３ａとが干渉して意匠１０３ａに影が現出する恐れがある、という課題を有している。
【００１０】
その上従来の指針照明構造１００は、光Ｌ_３の反射回数が多くかつ光路が長いため光の減衰を招き、これにより指針２００の高輝度化が図れない、という課題をも有している。
【００１１】
本発明は上述の点に着目してなされたもので、構造簡単で設計容易であると共に、光の減衰を招くこと無く指針の高輝度化を図ることができる指針照明構造を提供することを目的とする。
【００１２】
【課題を解決するための手段】
前記した目的を達成するため請求項１記載の発明は、光源の光を導光板で導くと共に、該導光板の指針軸挿通孔の周辺に形成された反射面により前記光を指針基端部方向へ反射させて指針を照明する指針照明構造において、前記反射面が、前記指針基端部の投影面内の導光板の厚み方向に前記指針軸挿通孔へ導光される第１の光に対向させて斜めに設けられ前記第１の光を前記指針基端部方向へ反射させる第１反射面と、前記指針基端部の投影面内の前記指針の要発光範囲側で前記指針軸挿通孔の側部へ導光される第２の光の導光方向に沿う可及的に長い範囲内の導光板の厚み方向に前記第２の光に対向する複数の小反射面が階段状に形成されており、該複数の小反射面により前記第２の光を前記指針基端部方向へ反射させる第２反射面とから構成されており、
前記複数の小反射面が、前記指針軸挿通孔の側部へ導光される第２の光に対向させて導光板の厚み方向に斜めに設けられた傾斜面上にセレーションにより形成されていることを特徴とするものである。
【００１３】
このため、請求項１記載の発明では、光源から出射した第１及び第２の光はそれぞれ光路を変更すること無く導光板で導光されて直接第１及び第２反射面に到達し、これら反射面で反射されて指針基端部に入射し指針を発光させることができる。そしてこの第２反射面は指針基端部の投影面内の第２の光の導光方向に沿う可及的に長い範囲内に階段状に形成された複数の小反射面で構成されているので、指針基端部への入射光は第２の光の前記した複数の小反射面による反射で前記した可及的に長い範囲で得られる。
【００１５】
また、請求項１記載の発明では、傾斜面は反射に要する傾斜角度にこだわらずに適宜な傾斜角度で必要な長さに形成することができる。
【００１６】
【発明の実施の形態】
以下、本発明を図面に示す実施の形態に基づいて説明する。なお、図３及び図４と同一部材は同一符号で示している。
【００１７】
図１及び図２は、コンビネーションメータに組み込まれる燃料計に適用された本発明の一実施形態としての指針照明構造１０を示す。この指針照明構造１０は、光源１０１の第１及び第２の光Ｌ_１及びＬ_２を導光板１０２で導くと共に、該導光板１０２の指針軸挿通孔１０２ａの周辺に形成された第１及び第２反射面１及び２により第１及び第２の光Ｌ_１及びＬ_２をそれぞれ指針基端部２００ａ方向へ反射させて指針２００を照明するようになっている。図１及び図２中、符号１０３は導光板１０２上に載置される文字板、符号１０３ａは文字板１０３上に施された意匠をそれぞれ示す。
【００１８】
第１反射面１は、指針基端部２００ａの投影面内（指針基端部２００ａの外郭線の内側に対応する面内）の導光板１０２の厚み方向に指針軸挿通孔１０２ａへ導光される第１の光Ｌ_１に対向させて傾斜角度θ_１＝４５°の傾斜面として形成されている（図２（ａ）参照）。第１の光Ｌ_１は第１反射面１で反射されて反射光Ｒ_１となって指針基端部２００ａに入射し、これによって指針２００が発光する。図２（ａ）中、符号２０１は指針軸であり、指針２００はその指針基端部２００ａを指針軸２０１の先端に固着して取り付けられている。
【００１９】
第２反射面２は、指針基端部２００ａの投影面内の指針２００の要発光範囲ａ（図１参照）側で指針軸挿通孔１０２ａの側部へ導光される第２の光Ｌ_２の導光方向に沿う可及的に長い範囲内の導光板１０２の厚み方向に第２の光Ｌ_２に対向して階段状に形成された複数の小反射面２_１，２_２，…，２_ｎを有して構成されている（図２（ｂ）参照）。
【００２０】
具体的には、第２反射面２は指針軸挿通孔１０２ａの側部へ導光される第２の光Ｌ_２に対向させて導光板１０２の厚み方向に斜めに設けられた傾斜面３上にセレーションにより複数の小反射面２_１，２_２，…，２_ｎを形成することにより形成される。このとき傾斜面３は反射に要する傾斜角度にこだわらずに適宜な傾斜角度θ_３で必要な長さに形成することができ、本実施形態では第２の光Ｌ_２の導光方向に沿って指針基端部２００ａの投影面の略全長に渡って形成されている。そして各小反射面２_１，２_２，…，２_ｎは傾斜面３の全長に渡って傾斜角度θ_２＝４５°の傾斜面として形成されている。
【００２１】
この第２反射面２では第２の光Ｌ_２は、図２（ｂ）に示すように第２反射面２の各小反射面２_１，２_２，…，２_ｎの全部で反射されて反射光Ｒ_１０となって指針基端部２００ａに入射し、これによって指針２００が発光する。なお、図２（ｂ）は指針２００を省略してある。
【００２２】
このように構成された指針照明構造１０によれば、指針２００は各反射面１，２により発生する各反射光Ｒ_１，Ｒ_１０により要発光範囲ａ内で発光することができる。このとき光源１０１から出射した第１及び第２の光Ｌ_１及びＬ_２はそれぞれ光路を変更すること無く導光板１０２で導光されて直接第１及び第２反射面１及び２に到達し、これら反射面１，２で反射されて指針基端部２００ａに入射し指針２００を発光させることができる。これにより指針照明構造１０は光路を変更するスリット等が不要となり構造簡単で設計容易なものとなっている。
【００２３】
またこの指針照明構造１０は、光路変更に伴う光の減衰を招くことも無く、かつ指針基端部２００ａへの入射光が指針基端部２００ａの投影面内の可及的に長い範囲で得られる第２の光Ｌ_２の反射光Ｒ_１０となっているので、十分な入射光量による指針２００の高輝度化を図ることができる。
【００２４】
その上この指針照明構造１０は導光板１０２内にスリット等を設けることがないので、文字板１０３の意匠１０３ａをスリット等との干渉に起因する陰影を伴うことなく鮮明に照明することができ、これにより照明品質の向上をも図ることができる。
【００２５】
またこの指針照明構造１０は、反射に要する傾斜角度にこだわらずに適宜な傾斜角度で必要な長さに形成された傾斜面３上に形成されるセレーションにより複数の小反射面２_１，２_２，…，２_ｎを形成するようにしたので成形容易なものとなっている。
【００２６】
【発明の効果】
以上、詳述したように請求項１記載の発明によれば、光源から出射した第１及び第２の光はそれぞれ光路を変更すること無く導光板で導光されて直接第１及び第２反射面に到達し、これら反射面で反射されて指針基端部に入射し指針を発光させることができるので、光路変更用のスリット等が不要となり構造簡単で設計容易なものとなっている。
【００２７】
また請求項１記載の発明によれば、光路変更に伴う光の減衰を招くことも無く、かつ指針基端部への入射光が指針基端部の投影面内の可及的に長い範囲で得られる第２の光の反射光となっているので、十分な入射光量による指針の高輝度化を図ることができる。
【００２８】
さらに請求項１記載の発明によれば、導光板内にスリット等を設けることがないので、文字板の意匠を鮮明に照明することができ、これにより照明品質の向上をも図ることができる。
【００２９】
またさらに、請求項１記載の発明によれば、反射に要する傾斜角度にこだわらずに適宜な傾斜角度で必要な長さに形成された傾斜面上に形成されるセレーションにより複数の小反射面を形成するようにしたので成形容易なものとなっている。
【図面の簡単な説明】
【図１】本発明の一実施の形態としての指針照明構造を示す平面図である。
【図２】（ａ）は図１のＩＩａ−ＩＩａ線断面図であり、（ｂ）は図１のＩＩｂ−ＩＩｂ線断面図である。
【図３】従来の指針照明構造の平面図である。
【図４】（ａ）は図３のＩＶａ−ＩＶａ線断面図であり、（ｂ）は図３のＩＶｂ−ＩＶｂ線断面図であり、（ｃ）は図３のＩＶｃ−ＩＶｃ線断面図である。
【符号の説明】
１第１反射面
２第２反射面
２_１，２_２，…，２_ｎ小反射面
３傾斜面
１０指針照明構造
１０１光源
１０２導光板
１０２ａ指針軸挿通孔
２００指針
２００ａ指針基端部
ａ要発光範囲
Ｌ_１第１の光
Ｌ_２第２の光[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a pointer illumination structure for guiding light emitted from a light source to a pointer.
[0002]
[Prior art]
This type of pointer illumination structure illuminates a pointer by guiding light from a light source with a light guide plate and reflecting the light toward a base end portion of the pointer by a reflection surface formed around a pointer shaft insertion hole of the light guide plate. It is supposed to.
[0003]
3 and 4 show a conventional pointer lighting structure 100 applied to a fuel meter incorporated in a combination meter. The pointer lighting structure 100 guides the light L ₁ , L ₂ , L ₃ of the light source 101 by the light guide plate 102 and the reflecting surfaces 110, 111, 112 formed around the pointer shaft insertion hole 102 a of the light guide plate 102. The light L ₁ , L ₂ , L ₃ is reflected in the direction of the base end portion 200 a to illuminate the pointer 200. 3 and 4, reference numeral 103 denotes a dial, and reference numeral 103a denotes a design provided on the dial 103.
[0004]
That light L ₁ that has been guided to the pointer shaft insertion hole 102a is a 4 reflected light R ₁ is reflected by the first reflecting surface 110 formed at an inclination angle θ _{0 =} 45 ° as shown in (a) The pointer 200 enters the pointer base end 200a, and the pointer 200 emits light. In FIG. 4A, reference numeral 201 denotes a pointer shaft.
[0005]
The principal emission range a light _{L 2,} which is guided on the side of the pointer shaft insertion hole 102a in (see FIG. 3) of the pointer 200, as shown in FIG. 4 (b) (shown by omitting the guide 200) the second reflecting surface 111 is reflected by (the inclination angle of 45 °) enters the guide base end portion 200a becomes reflected light _{R 2,} whereby the pointer 200 emits light. Since this time the light L ₂ does not reach to the b portion of the above is blocked by the second reflecting surface 111 (FIG. 4 (b)), the light emitting guidance 200 by the incident light from the b portion does not occur. For this reason, conventionally, the incident light from the portion b is generated as follows and the pointer 200 emits light.
[0006]
That the slit 113 is formed on the light guide plate 102, the light L _3, which is guided to the slit 113 in the third reflecting surface 112 is formed in part b described above is reflected by the wall surface of the slit 113 (the inclination angle of 45 °) is guided, the light incident to the pointer base end portion 200a becomes reflected light R ₃ is reflected by the third reflecting surface 112 (FIG. 4 (c)). Guidance 200 The reflected light _{R 3} emits light.
[0007]
The pointer 200 can emit light within the required light emission range a by the respective reflected lights R ₁ , R ₂ , R ₃ generated by the respective reflecting surfaces 110, 111, 112.
[0008]
This similar technique is disclosed in Japanese Utility Model Laid-Open No. 63-137822 and Japanese Utility Model Laid-Open No. 56-92990.
[0009]
[Problems to be solved by the invention]
However, in the conventional pointer lighting structure 100, the formation of the slit 113 and the third reflecting surface 112 not only complicates the design, but also causes the slit 113 and the design 103a of the dial 103 to interfere with each other and affect the design 103a. There is a problem that there is a risk of appearing.
[0010]
Moreover conventional pointer illuminating structure 100 can lead to attenuation of the light for many and the optical path is long number of times of reflection of the light L _3, thereby can not be ensured high brightness of the pointer 200, also has a problem that.
[0011]
The present invention has been made in view of the above points, and has an object to provide a pointer illumination structure which has a simple structure and is easy to design, and which can achieve high brightness of the pointer without causing light attenuation. And
[0012]
[Means for Solving the Problems]
To achieve the above object, the invention according to claim 1 guides light from a light source by a light guide plate, and directs the light toward a base end portion of the hand by a reflection surface formed around a pointer shaft insertion hole of the light guide plate. In the pointer illumination structure for illuminating the pointer by reflecting light toward the pointer, the reflection surface faces the first light guided to the pointer shaft insertion hole in the thickness direction of the light guide plate in the projection plane of the base end of the pointer. A first reflecting surface which is provided obliquely to reflect the first light toward the base end of the pointer, and the pointer shaft insertion hole on the side of the required light emission range of the pointer in the projection plane of the base end of the pointer. A plurality of small reflection surfaces facing the second light are formed in a stepwise manner in the thickness direction of the light guide plate within a range as long as possible along the light guide direction of the second light guided to the side of the second light. And a second reflection surface for reflecting the second light toward the base end portion of the pointer by the plurality of small reflection surfaces. Is configured,
The plurality of small reflecting surfaces are formed by serration on an inclined surface provided obliquely in the thickness direction of the light guide plate so as to face the second light guided to the side of the pointer shaft insertion hole . It is characterized by the following.
[0013]
Therefore, according to the first aspect of the invention, the first and second lights emitted from the light source are guided by the light guide plate without changing the optical path, and directly reach the first and second reflection surfaces, respectively. The light is reflected by the reflecting surface, enters the base end of the pointer, and can emit light. The second reflecting surface is constituted by a plurality of small reflecting surfaces formed in steps in a range as long as possible along the light guide direction of the second light in the projection surface of the base end portion of the pointer. Therefore, the light incident on the base end portion of the pointer can be obtained in the longest possible range by the reflection of the second light by the plurality of small reflecting surfaces.
[0015]
According to the first aspect of the present invention, the inclined surface can be formed to have a required length at an appropriate inclination angle without being limited to the inclination angle required for reflection.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described based on embodiments shown in the drawings. 3 and 4 are denoted by the same reference numerals.
[0017]
1 and 2 show a pointer lighting structure 10 as an embodiment of the present invention applied to a fuel gauge incorporated in a combination meter. The pointer illuminating structure 10 guides the first and second light _{L 1} and _{L 2} of the light source 101 in the light guide plate 102, first and second formed around the pointer shaft insertion hole 102a of the light guide plate 102 the second reflection surface 1 and 2 of the first and second light L ₁ and L ₂ a is reflected to the pointer base end 200a directions respectively so as to illuminate the pointer 200. In FIGS. 1 and 2, reference numeral 103 denotes a dial placed on the light guide plate 102, and reference numeral 103 a denotes a design provided on the dial 103.
[0018]
The first reflecting surface 1 is guided to the pointer shaft insertion hole 102a in the thickness direction of the light guide plate 102 in the projection plane of the pointer proximal end 200a (in a plane corresponding to the inside of the outline of the pointer proximal end 200a). the first is formed as an inclined surface of the inclined angle theta _{1 =} 45 ° to face the light L ₁ that (see FIG. 2 (a)). First light L ₁ is incident on the pointer base end portion 200a becomes reflected light R ₁ is reflected by the first reflecting surface 1, whereby the pointer 200 emits light. In FIG. 2A, reference numeral 201 denotes a pointer shaft, and the pointer 200 is attached with the pointer base end portion 200a fixed to the distal end of the pointer shaft 201.
[0019]
The second reflection surface 2 is a second light L ₂ guided to the side of the pointer shaft insertion hole 102 a on the side of the light emitting range a (see FIG. 1) of the pointer 200 in the projection plane of the pointer base end 200 a. a plurality of small reflective surfaces 2 ₁ in the thickness direction of the light guide plate 102 to face the second light L ₂ are formed stepwise in as much as possible long range along the light guiding _direction, 2 2, _..., 2 _n (see FIG. 2B).
[0020]
Specifically, the second reflecting surface 2 pointer shaft insertion hole 102a of the second inclined surface 3 on which is provided obliquely in the thickness direction of the light guide plate 102 to face the light L ₂ to be guided to the side Are formed by forming a plurality of small reflecting surfaces 2 ₁ , 2 ₂ ,..., 2 _n by serration. In this case the inclined surface 3 may be formed to the required length at a suitable inclination angle theta ₃ to without regard to the inclination angle required for the reflection, in this embodiment along the second light guide direction of the light L ₂ The pointer is formed over substantially the entire length of the projection surface of the base end portion 200a. Each of the small reflecting surfaces 2 ₁ , 2 ₂ ,..., 2 _n is formed as an inclined surface having an inclination angle θ ₂ = 45 ° over the entire length of the inclined surface 3.
[0021]
Light _{L 2} second in the second reflecting surface 2, 2 each small reflective surface ₂ 1 of the second reflecting surface 2, as shown in _(b), 2 2, ..., it is reflected by the total of _{2 n} as reflected light _{R 10} enters the guide proximal end 200a, whereby the pointer 200 emits light. In FIG. 2B, the pointer 200 is omitted.
[0022]
According to the pointer illumination structure 10 configured as described above, the pointer 200 can emit light within the required light emission range a by the respective reflected lights R ₁ and R ₁₀ generated by the respective reflection surfaces 1 and 2. At this time the light L ₁ and L ₂ were the first and second emitted from the light source 101 reaches respectively without the light guide plate 102 the first and second reflecting surfaces 1 and 2 directly guided by changing the optical path, The light is reflected by the reflecting surfaces 1 and 2 and is incident on the base end portion 200a of the pointer, so that the pointer 200 can emit light. As a result, the pointer illumination structure 10 does not require a slit or the like for changing the optical path, and the structure is simple and easy to design.
[0023]
In addition, the pointer illumination structure 10 does not cause light attenuation due to a change in the optical path, and enables the light incident on the pointer base end 200a to be obtained within a range as long as possible within the projection plane of the pointer base end 200a. since the second has a reflected light R ₁₀ of the light L ₂ to be, it is possible to increase the brightness of the pointer 200 by sufficient amount of incident light.
[0024]
In addition, since the pointer lighting structure 10 does not provide a slit or the like in the light guide plate 102, the design 103a of the dial 103 can be clearly illuminated without shading caused by interference with the slit or the like, Thereby, the illumination quality can be improved.
[0025]
In addition, the pointer illumination structure 10 has a plurality of small reflecting surfaces 2 ₁ , 2 ₂ formed by serrations formed on an inclined surface 3 having an appropriate inclination angle and a required length without being limited to an inclination angle required for reflection. ,..., _2n are formed so that molding is easy.
[0026]
【The invention's effect】
As described above in detail, according to the first aspect of the invention, the first and second lights emitted from the light source are guided by the light guide plate without changing the optical path, and are directly reflected by the first and second reflections. Since the light reaches the surface, the light is reflected by these reflection surfaces and is incident on the base end of the pointer, and the pointer can emit light, a slit or the like for changing the optical path is not required, so that the structure is simple and the design is easy.
[0027]
According to the first aspect of the present invention, light is not attenuated due to a change in the optical path, and light incident on the base end of the pointer is as long as possible within the projection plane of the base end of the pointer. Since the obtained second light is reflected light, it is possible to increase the brightness of the pointer by a sufficient amount of incident light.
[0028]
Further, according to the first aspect of the present invention, since no slit or the like is provided in the light guide plate, the design of the dial can be clearly illuminated, thereby improving the illumination quality.
[0029]
Still further , according to the first aspect of the present invention, a plurality of small reflecting surfaces are formed by serrations formed on an inclined surface having a required length at an appropriate inclination angle without being limited to an inclination angle required for reflection. Since it is formed, it is easy to mold.
[Brief description of the drawings]
FIG. 1 is a plan view showing a pointer illumination structure according to an embodiment of the present invention.
2A is a sectional view taken along line IIa-IIa in FIG. 1, and FIG. 2B is a sectional view taken along line IIb-IIb in FIG.
FIG. 3 is a plan view of a conventional pointer lighting structure.
4A is a sectional view taken along line IVa-IVa in FIG. 3, FIG. 4B is a sectional view taken along line IVb-IVb in FIG. 3, and FIG. 4C is a sectional view taken along line IVc-IVc in FIG. is there.
[Explanation of symbols]
Reference Signs List 1 1st reflection surface 2 2nd reflection surface 2 ₁ , 2 ₂ ,..., 2 _n small reflection surface 3 inclined surface 10 pointer lighting structure 101 light source 102 light guide plate 102 a pointer shaft insertion hole 200 pointer 200 a pointer base end a Range L ₁ First light L ₂ Second light

Claims

While guiding the light of the light source with the light guide plate, a pointer illumination structure that illuminates the pointer by reflecting the light toward the proximal end portion of the pointer by a reflecting surface formed around the pointer shaft insertion hole of the light guide plate,
The reflecting surface is provided obliquely in the thickness direction of the light guide plate in the projection plane of the base end portion of the pointer so as to face the first light guided to the pointer shaft insertion hole, and the first light is provided. A first reflecting surface for reflecting in the direction of the proximal end of the pointer, and a second light guided to the side of the pointer shaft insertion hole on the side of the required light emission range of the pointer in the projection plane of the proximal end of the pointer. A plurality of small reflecting surfaces facing the second light are formed in a stepwise manner in a thickness direction of the light guide plate within a range as long as possible along the light guiding direction, and the plurality of small reflecting surfaces are formed by the plurality of small reflecting surfaces. And a second reflecting surface for reflecting the light of No. 2 in the direction of the base end of the pointer .
The plurality of small reflecting surfaces are formed by serration on an inclined surface provided obliquely in the thickness direction of the light guide plate so as to face the second light guided to the side of the pointer shaft insertion hole . A pointer lighting structure characterized by the following.