JPS61113302U

JPS61113302U -

Info

Publication number: JPS61113302U
Application number: JP19360184U
Authority: JP
Priority date: 1984-12-20
Filing date: 1984-12-20
Publication date: 1986-07-17
Also published as: JPH0140086Y2

Description

[Brief explanation of the drawing]

第１図は本考案に係る角型前照灯の一実施例を
示す斜視図、第２図は同実施例における扁平柱状
発光体の形状例とその発光の光度分布を説明する
ための斜視図、第３図は同発光体を反射鏡内に配
置した場合の光度分布を示す斜視図、第４図ａ，
ｂは有効光束利用率の従来領例との比較結果を示
す図、第５図ａ，ｂは非有効光束率の従来例との
比較結果を示す図、第６図は配光パターン、第７
図及び第８図はそれぞれ扁平柱状発光体の他の形
状を示す斜視図、第９図は走行用フイラメント、
すれ違い用フイラメントの２個の発光体を有する
自動車用前照灯に適用した場合の斜視図、第１０
図ａ，ｂは同配光パターン、第１１図及び第１２
図はそれぞれ従来例を示す斜視図、第１３図は円
筒状光源の光度分布を示す図、第１４図及び第１
５図はそれぞれ円筒状光源を角型反射鏡内に配置
した場合の光度合分布を説明するための斜視図で
ある。１１……保射鏡、１２……前面レンズ、１３，
１３′，１３″，１３―１及び１３―２……扁平
柱状発光体。 Fig. 1 is a perspective view showing an embodiment of a rectangular headlamp according to the present invention, and Fig. 2 is a perspective view illustrating an example of the shape of a flat columnar light emitter in the same embodiment and the luminous intensity distribution of its light emission. , Fig. 3 is a perspective view showing the luminous intensity distribution when the same light emitting body is placed inside a reflecting mirror, Fig. 4 a,
Fig. 5b is a diagram showing the comparison result of the effective luminous flux utilization rate with the conventional example, Fig. 5 a, b is a diagram showing the comparison result of the ineffective luminous flux ratio with the conventional example, Fig. 6 is the light distribution pattern, Fig. 7
8 and 8 are respectively perspective views showing other shapes of the flat columnar light emitter, and FIG. 9 is a traveling filament,
Perspective view when applied to an automobile headlamp having two light emitters of passing filaments, No. 10
Figures a and b are the same light distribution pattern, Figures 11 and 12.
Each figure is a perspective view showing a conventional example, FIG. 13 is a diagram showing the luminous intensity distribution of a cylindrical light source, FIG.
FIG. 5 is a perspective view for explaining the light intensity distribution when a cylindrical light source is placed inside a rectangular reflecting mirror. 11...Mirror, 12...Front lens, 13,
13', 13'', 13-1 and 13-2...flat columnar light emitters.

補正昭６０．４．１０実用新案登録請求の範囲を次のように補正する
。Amendment April 10, 1980 The scope of claims for utility model registration is amended as follows.

【実用新案登録請求の範囲】主反射面の前面開口が横長の角型となるように
反射鏡を形成し、この反射鏡の前面開口部に前面
レンズを配設し、反射鏡内部に反射鏡軸と略平行
に光源を配置した角型前照灯において、前記光源
を、その横断面の長軸に対する短軸の比率が2/3
以下の扁平柱状発光体とし、その長軸が鉛直方向
となるように配置したことを特徴とする角型前照
灯。[Claim for Utility Model Registration] A reflecting mirror is formed so that the front opening of the main reflecting surface has a horizontally long rectangular shape, a front lens is disposed in the front opening of the reflecting mirror, and a reflecting mirror is provided inside the reflecting mirror. In a rectangular headlamp in which the light source is arranged approximately parallel to the axis, the ratio of the short axis to the long axis of the cross section of the light source is 2/3.
A rectangular headlamp characterized by having the following flat columnar light emitting body arranged so that its long axis is in the vertical direction.

Claims

[Scope of utility model registration request]

An anti-oblique mirror is formed so that its main reflecting surface is a paraboloid of revolution and its front aperture is a horizontally long rectangular shape. In a rectangular headlamp in which a light source is arranged approximately parallel to the reflector axis, the light source is a flat columnar light emitting body whose cross section has a ratio of the short axis to the long axis of 2/3 or less, and the long axis is A square headlight characterized by being arranged vertically.