JPS62176904U - - Google Patents
Info
- Publication number
- JPS62176904U JPS62176904U JP6583986U JP6583986U JPS62176904U JP S62176904 U JPS62176904 U JP S62176904U JP 6583986 U JP6583986 U JP 6583986U JP 6583986 U JP6583986 U JP 6583986U JP S62176904 U JPS62176904 U JP S62176904U
- Authority
- JP
- Japan
- Prior art keywords
- fresnel lens
- lens step
- refractive
- reflective
- lens
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000002093 peripheral effect Effects 0.000 claims 1
Description
第１図は本考案実施の一例を示す断面図、第２
図は従来例を示す断面図である。
図中、１はレンズ、２ａは屈折系フレネルレン
ズステツプ、２′ｂはその除変レンズステツプ、
２ｂは反射系フレネルレンズステツプ、２′ｂは
その除変レンズステツプ、３は境界部、Ａはバル
ブ、である。
Fig. 1 is a sectional view showing an example of the implementation of the present invention;
The figure is a sectional view showing a conventional example. In the figure, 1 is a lens, 2a is a refractive Fresnel lens step, 2'b is a variable lens step,
2b is a reflective Fresnel lens step, 2'b is a variable lens step thereof, 3 is a boundary portion, and A is a bulb.
Claims (1)
ズステツプを形成すると共にレンズ周辺部の他方
の面に反射系フレネルレンズステツプを形成し、
前記屈折系フレネルレンズステツプと反射系フレ
ネルレンズステツプとの境界部において両レンズ
ステツプのピツチを除々に小さく形成した事を特
徴とする自動車用灯具のレンズ。 A refractive Fresnel lens step is formed on one surface of the central portion of the lens, and a reflective Fresnel lens step is formed on the other surface of the peripheral portion of the lens,
A lens for an automobile lamp, characterized in that the pitch between the refractive Fresnel lens step and the reflective Fresnel lens step is gradually reduced at the boundary between the refractive Fresnel lens step and the reflective Fresnel lens step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6583986U JPS62176904U (en) | 1986-04-28 | 1986-04-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6583986U JPS62176904U (en) | 1986-04-28 | 1986-04-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62176904U true JPS62176904U (en) | 1987-11-10 |
Family
ID=30903286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6583986U Pending JPS62176904U (en) | 1986-04-28 | 1986-04-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62176904U (en) |
-
1986
- 1986-04-28 JP JP6583986U patent/JPS62176904U/ja active Pending