JPS6264902U - - Google Patents
Info
- Publication number
- JPS6264902U JPS6264902U JP15439485U JP15439485U JPS6264902U JP S6264902 U JPS6264902 U JP S6264902U JP 15439485 U JP15439485 U JP 15439485U JP 15439485 U JP15439485 U JP 15439485U JP S6264902 U JPS6264902 U JP S6264902U
- Authority
- JP
- Japan
- Prior art keywords
- housing
- lens
- bulb
- disposed
- prism
- 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.)
- Granted
Links
- 238000009792 diffusion process Methods 0.000 claims description 2
- 230000004907 flux Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Description
第１図乃至第４図は本考案の車輌用灯具の第１
の実施例を示し、第１図は断面図、第２図はイン
ナーレンズのバルブ付近の拡大図、第３図は拡散
プリズムの一般の角度式のための説明図、第４図
は本考案の車輌用灯具の輝度分布を示したグラフ
である。第５図は本考案の第２の実施例を示した
インナーレンズの拡大図である。第６図乃至第８
図は従来の車輌用灯具を示し、第６図は断面図、
第７図はインナーレンズのバルブ付近の拡大図、
第８図は従来の車輌用灯具の輝度分布を示したグ
ラフである。
１……ハウジング、２……インナーレンズ、２
３，２４……拡散プリズム、３……アウターレン
ズ、４……バルブ。
Figures 1 to 4 show the first vehicular lamp of the present invention.
Fig. 1 is a sectional view, Fig. 2 is an enlarged view of the vicinity of the inner lens bulb, Fig. 3 is an explanatory diagram for the general angle formula of the diffusing prism, and Fig. 4 is a diagram of the present invention. 3 is a graph showing a luminance distribution of a vehicle lamp. FIG. 5 is an enlarged view of an inner lens showing a second embodiment of the present invention. Figures 6 to 8
The figure shows a conventional vehicle lamp, and Figure 6 is a cross-sectional view.
Figure 7 is an enlarged view of the inner lens near the bulb.
FIG. 8 is a graph showing the luminance distribution of a conventional vehicle lamp. 1...Housing, 2...Inner lens, 2
3, 24...diffusion prism, 3...outer lens, 4...bulb.
Claims (1)
たフレネルプリズム一体成形のレンズと、そのレ
ンズおよびハウジングにより画成された灯室内に
配設したバルブとを備えた車輌用灯具において、
前記レンズのバルブ付近の表面に、光束量がほぼ
均一になるように拡散角度を中心から周辺に行く
に従つて徐々に小さく変化させたプリズムを、施
したことを特徴とする車輌用灯具。 A vehicle lamp comprising a housing, a Fresnel prism integrally molded lens disposed on the front surface of the housing, and a bulb disposed in a light chamber defined by the lens and the housing,
A vehicular lamp characterized in that a prism is provided on the surface of the lens near the bulb so that the amount of luminous flux is almost uniform, and the diffusion angle is gradually changed from the center to the periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985154394U JPH0140091Y2 (en) | 1985-10-11 | 1985-10-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985154394U JPH0140091Y2 (en) | 1985-10-11 | 1985-10-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6264902U true JPS6264902U (en) | 1987-04-22 |
| JPH0140091Y2 JPH0140091Y2 (en) | 1989-12-01 |
Family
ID=31074146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985154394U Expired JPH0140091Y2 (en) | 1985-10-11 | 1985-10-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0140091Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59144808U (en) * | 1983-03-18 | 1984-09-27 | 株式会社小糸製作所 | Lens for lighting equipment |
-
1985
- 1985-10-11 JP JP1985154394U patent/JPH0140091Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59144808U (en) * | 1983-03-18 | 1984-09-27 | 株式会社小糸製作所 | Lens for lighting equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0140091Y2 (en) | 1989-12-01 |