JPH0246300U

JPH0246300U -

Info

Publication number: JPH0246300U
Application number: JP12330088U
Authority: JP
Priority date: 1988-09-20
Filing date: 1988-09-20
Publication date: 1990-03-29
Anticipated expiration: 2003-09-20
Also published as: JPH0739040Y2

Description

[Brief explanation of drawings]

第１図は、本考案による信号灯の断面図、第２
図は、前記信号灯の光フイルターを構成するレン
ズ部と光吸収部とを示す斜視図、第３Ａ図は、第
１図の光フイルターの要部を示す拡大断面図、第
３Ｂ図は、他の実施例による光フイルターの要部
を示す拡大断面図、第４Ａ，４Ｂ図は、本考案に
よる信号灯の作用を説明する図、第５Ａ，５Ｂ図
は、本考案のさらに他の実施例を示す図、第６図
は、本考案のさらにもう１つの実施例を示す図、
第７図は、第６図の―線断面図、第８図は、
従来の信号灯を示す断面図である。２：前方レンズ、３：反射鏡、４：光源体、１
２，１６：レンズ部、１２ａ：円柱状レンズ、１
２ｂ：半円柱状レンズ、１３：光吸収部、１３ａ
：吸光体、１６ａ：球状レンズ、ｄ：直径、ｔ：
最大厚み。 Fig. 1 is a sectional view of the signal light according to the present invention;
The figure is a perspective view showing a lens part and a light absorbing part constituting the optical filter of the signal light, FIG. 3A is an enlarged sectional view showing the main part of the optical filter of FIG. FIGS. 4A and 4B are diagrams illustrating the operation of the signal lamp according to the present invention; FIGS. 5A and 5B are diagrams showing still another embodiment of the present invention; FIGS. , FIG. 6 is a diagram showing yet another embodiment of the present invention,
Figure 7 is a sectional view taken along the line - in Figure 6, and Figure 8 is a
It is a sectional view showing a conventional signal light. 2: Front lens, 3: Reflector, 4: Light source, 1
2, 16: Lens part, 12a: Cylindrical lens, 1
2b: semi-cylindrical lens, 13: light absorption part, 13a
: Light absorber, 16a: Spherical lens, d: Diameter, t:
Maximum thickness.

Claims

[Claims for Utility Model Registration] (1) Front lens 2, light source 4, and light source 4
In a signal light consisting of a reflector 3 that reflects light emitted from the front lens forward, a light source 4 is provided between the front lens 2 and the light source 4 in parallel to each other so as to form a plane perpendicular to the optical axis of the front lens 2. A plurality of long cylindrical lenses 12 provided
a, and a light absorbing part 13 consisting of a plurality of band-shaped light absorbers 13a provided on the rear surface side of the lens part 12 so as to correspond to each of the cylindrical lenses 12a, and each The light absorber 13a has a predetermined width in the direction perpendicular to the optical axis of the corresponding cylindrical lens 12a, and is located near the focal point of the lens 12a. (2) The lens portion 12 is substantially an integral part of the rear parts of each of the cylindrical lenses 12a, and has a plurality of long semi-cylindrical lenses 12b parallel to each other integrally on the front side. , and the lens 1
2b forming portion has a maximum thickness t that is approximately the same as the diameter d of the semicircular column.
Signal light as described in. (3) The signal lamp according to claim 1 or 2, wherein the lenses 12a, 12b and the corresponding light absorber 13a are provided integrally. (4) Front lens 2, light source 4, and light source 4
In a signal light consisting of a reflector 3 that reflects light emitted from It has a lens portion 16 that integrates a plurality of spherical lenses 16a, and a light absorber 17 of a predetermined area is integrally provided on the rear surface of each lens 16a so as to be located near the focal point of the lens portion 16. A signal light.