JPS60164701U

JPS60164701U - Vehicle lighting lens

Info

Publication number: JPS60164701U
Application number: JP5282184U
Authority: JP
Inventors: 経雄関口
Original assignee: スタンレー電気株式会社
Priority date: 1984-04-11
Filing date: 1984-04-11
Publication date: 1985-11-01
Also published as: JPH0129921Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は従来例における灯具の光像状態を説明するため
の略示的断面図、第２図は従来例におけるレンズの正面
図、第３図はりフレフタ−による反射光の光像を光分離
れた位置におけるパターンとして説明するためのもので
、Ａ図はりフレフタ−の略示的断面図、Ｂ図はフィラメ
ント３の点灯時における光像パターン、０図はフィラメ
ント４の点灯時における光像パターン、第４図は同じ（
リフレクタ−による反射光の光像をレンズ位置における
パターンとして説明するためのもので、Ａ図はりフレフ
タ−の略示的断面図、Ｂ図はフィラメント３の点灯時に
おける光像パターン、０図はフィラメント４の点灯時に
おける光像パターン、第５図はレンズの暗部となる範囲
を示すレンズの一部正面図、第６図は同レンズの一部分
における光像パターン、第７図は第５図の■−■線に沿
う拡大断面図、第８図は他の例を示す第７図と同様の拡
大断面図、第９図は第８図の例における第６図と同様の
光像パターン、第１０図は本考案に係る第１実施例のレ
ンズの正面図、第１１図は第１０図のＸＩ−ＸＩ線に沿
う拡大断面図、第１２図は第１０図のレンズにおける一
部分における光像パターン、第１３図は第２実施例にお
けるレンズの要部のみを示す正面図、第１４図は第１３
図の　　−ＸＩＶ−ＸＩＶ線に沿う拡大断面図、第１５
図は第３実施例におけるレンズの要部のみを示す正面図
、第１６図は第１５図のＸＶＩ−ＸＶＩ線に沿う拡大断
　　・面図である。１・・・・・・リフレクタ−１３，４・・・・・・フィ
ラメント、５・・・・・・バルブの取付部、Ｐｌ・・・
・・・暗部となる範囲、７，７ａ・・・・・・暗部、１
２・・・・・・レンズ、１３゜１３ａ・・・・・・外部
に向って肉厚が厚くなるレンズカット（凸状のレンズカ
ット）、１４・・・・・・一部分、１５・・・・・・段
差のあるレンズカット。Fig. 1 is a schematic cross-sectional view for explaining the optical image state of a lamp in a conventional example, Fig. 2 is a front view of a lens in a conventional example, and Fig. 3 is an optical image of the light reflected by the beam flapter. Figure A is a schematic cross-sectional view of the beam flutter, Figure B is a light image pattern when filament 3 is turned on, and Figure 0 is a light image pattern when filament 4 is turned on. , Figure 4 is the same (
This is to explain the optical image of the light reflected by the reflector as a pattern at the lens position. Figure A is a schematic cross-sectional view of the reflector, Figure B is the optical image pattern when filament 3 is turned on, and Figure 0 is the filament. 4, the light image pattern when the lens is turned on, FIG. 5 is a partial front view of the lens showing the dark area of the lens, FIG. 6 is the light image pattern in a part of the same lens, and FIG. 8 is an enlarged sectional view similar to FIG. 7 showing another example; FIG. 9 is an optical image pattern similar to FIG. 6 in the example of FIG. 8; The figure is a front view of the lens of the first embodiment according to the present invention, FIG. 11 is an enlarged sectional view taken along the line XI-XI of FIG. 10, and FIG. 12 is a light image pattern in a part of the lens of FIG. FIG. 13 is a front view showing only the main parts of the lens in the second embodiment, and FIG. 14 is a front view of the lens in the second embodiment.
Enlarged sectional view along line -XIV-XIV in Figure 15
The figure is a front view showing only the essential parts of the lens in the third embodiment, and FIG. 16 is an enlarged sectional view taken along line XVI-XVI in FIG. 15. 1... Reflector 13, 4... Filament, 5... Valve mounting part, Pl...
...Dark area, 7,7a...Dark area, 1
2... Lens, 13° 13a... Lens cut that becomes thicker toward the outside (convex lens cut), 14... Partial, 15... ...Lens cut with steps.

Claims

[Scope of utility model registration request]

In a lamp equipped with multiple filaments, the dark area on the lens is approximately the same as the non-light emitting area corresponding to the bulb attachment part or filament fixing part of the reflector that occurs when any filament is lit. A lens for a vehicle lamp, characterized in that all or part of the range has a lens cut that becomes thicker or stepped from the center outward.