JPH0284204U

JPH0284204U -

Info

Publication number: JPH0284204U
Application number: JP16432088U
Authority: JP
Priority date: 1988-12-19
Filing date: 1988-12-19
Publication date: 1990-06-29

Description

[Brief explanation of drawings]

第１図は本考案の一実施例を示す側面図、第２
図は同じく本考案を示す正面図、第３図は本考案
の要部を示す側面図、第４図は本考案による効率
特性を示すグラフ、第５図は車両用灯具を示す断
面図、第６図は従来のインナーレンズを示す側面
図、第７図は同じく従来のインナーレンズを示す
正面図である。１……インナーレンズ、１ａ……屈折フレネル
カツト、１ｂ……反射フレネルカツト、２……境
界部分、ＲＭ……混合領域、Ｈ……ハウジング、
Ｂ……光源、１０……アウターレンズ。 Figure 1 is a side view showing one embodiment of the present invention;
3 is a side view showing the main parts of the invention, FIG. 4 is a graph showing the efficiency characteristics of the invention, and FIG. 5 is a sectional view showing a vehicle lamp. FIG. 6 is a side view showing a conventional inner lens, and FIG. 7 is a front view showing the same conventional inner lens. 1...Inner lens, 1a...Refractive Fresnel cut, 1b...Reflective Fresnel cut, 2...Boundary portion, RM...Mixing region, H...Housing,
B...Light source, 10...Outer lens.

Claims

[Scope of utility model registration request]

In an inner lens for a vehicle lamp in which a refractive Fresnel cut is formed in a region close to the light source and a reflective Fresnel cut is formed around the refractive Fresnel cut, the refractive Fresnel cut is formed at the boundary between the refractive Fresnel cut and the reflective Fresnel cut. An inner lens for a vehicle lamp, characterized by having a mixed area where a cut and a reflective Fresnel cut coexist.