JPH048203U - - Google Patents
Info
- Publication number
- JPH048203U JPH048203U JP4731090U JP4731090U JPH048203U JP H048203 U JPH048203 U JP H048203U JP 4731090 U JP4731090 U JP 4731090U JP 4731090 U JP4731090 U JP 4731090U JP H048203 U JPH048203 U JP H048203U
- Authority
- JP
- Japan
- Prior art keywords
- lens
- reflector
- bulb
- auxiliary lens
- mirror surface
- 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
- 230000003287 optical effect Effects 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 14
Description
第１図は本考案に係る車両用前照灯におけるビ
ーム切替装置の一実施例を示す一部分解した斜視
図、第２図は同前面レンズを除去した状態の正面
図、第３図は同側断面図、第４図ａ及びｂはそれ
ぞれ補助レンズのプリズムステツプの実施例を示
す正面及び断面図、第５図ａはリフレクタの第一
の実施例を示す正面図、ｂは同縦断面図、第６図
ａは第５図のリフレクタによる基本配光図、ｂは
補助レンズ相当部の基本配光図、ｃは補助レンズ
透過後の配光図、ｄはすれ違い走行時の照射パタ
ーン図、ｅは一般走行時の照射パターン図、第７
図ａ及びｂはそれぞれ補助レンズのプリズムステ
ツプの他の実施例を示す配光説明図、第８図ａは
リフレクタの第二の実施例を示す正面図、ｂは同
縦断面図、第９図ａは第８図のリフレクタによる
基本配光図、ｂは補助レンズ相当部の基本配光図
、ｃは補助レンズ透過後の配光図、ｄはすれ違い
走行時の照射パターン図、ｅは一般走行時の照射
パターン図、第１０図ａはリフレクタの第三の実
施例を示す正面図、ｂは同縦断面図、ｃは同横断
面図、第１１図ａは第１０図のリフレクタによる
基本配光図、ｂはすれ違い走行時の照射パターン
図、ｃは補助レンズ透過後の配光図、ｄは一般走
行時の照射パターン図、第１２図は従来の照射ビ
ームの切替機構を示す前照灯の縦断面図、第１３
図ａ，ｂ及びｃは同照射パターン図である。
１……リフレクタ、３……点灯バルブ、３ａ…
…フイラメント、４……前面レンズ、５……回転
軸、７ａ，７ｂ……補助レンズ、９……歯車、１
０……直流モータ、１１……減速歯車、１２……
レンズ姿勢制御駆動機構。
Fig. 1 is a partially exploded perspective view showing an embodiment of the beam switching device in a vehicle headlamp according to the present invention, Fig. 2 is a front view with the front lens removed, and Fig. 3 is the same side. 4a and 4b are respectively a front view and a sectional view showing an embodiment of the prism step of the auxiliary lens, FIG. 5a is a front view showing the first embodiment of the reflector, and FIG. Figure 6a is the basic light distribution diagram by the reflector in Figure 5, b is the basic light distribution diagram of the part corresponding to the auxiliary lens, c is the light distribution diagram after passing through the auxiliary lens, d is the irradiation pattern diagram when passing each other, and e Figure 7 shows the irradiation pattern during general driving.
Figures a and b are explanatory light distribution diagrams showing other embodiments of the prism step of the auxiliary lens, Figure 8 a is a front view showing the second embodiment of the reflector, Figure b is a longitudinal sectional view of the same, and Figure 9. a is the basic light distribution diagram by the reflector in Figure 8, b is the basic light distribution diagram of the part corresponding to the auxiliary lens, c is the light distribution diagram after passing through the auxiliary lens, d is the irradiation pattern diagram when driving in passing, and e is the normal driving FIG. 10a is a front view showing the third embodiment of the reflector, FIG. Light diagram, b is a diagram of the irradiation pattern when driving in passing, c is a diagram of the light distribution after passing through the auxiliary lens, d is a diagram of the irradiation pattern when driving in general, and Figure 12 is a headlight showing a conventional irradiation beam switching mechanism. Longitudinal cross-sectional view, No. 13
Figures a, b, and c are diagrams of the same irradiation pattern. 1...Reflector, 3...Lighting bulb, 3a...
...Filament, 4...Front lens, 5...Rotation axis, 7a, 7b...Auxiliary lens, 9...Gear, 1
0...DC motor, 11...Reduction gear, 12...
Lens attitude control drive mechanism.
Claims (1)
、該前面レンズとバルブ間に補助レンズを備えた
灯具において、 前記リフレクタの反射鏡面を、前記バルブのフ
イラメントの後端よりリフレクタ側に焦点位置を
有する略上半部を形成して成る第一放物反射鏡面
と、前記バルブのフイラメントの前端より前面レ
ンズ側に焦点位置を有する略下半部を形成して成
る第二放物反射鏡面によつて区画構成すると共に
、 前記補助レンズを光軸と略直交するように横架
設した回転軸に軸着してレンズ面と直交方向回動
自在に枢設して成り、 該回転軸を回転制御可能なモータ等のレンズ姿
勢制御駆動機構によつて回動変位せしめ前記補助
レンズをリフレクタの光軸と平行する姿勢と、光
軸と直交する姿勢に切替変位することを特徴とす
る 車両用前照灯におけるビーム切替装置。[Claims for Utility Model Registration] In a lamp that includes a bulb and a front lens in front of a reflector, and an auxiliary lens between the front lens and the bulb, the reflective mirror surface of the reflector is connected to the reflector from the rear end of the filament of the bulb. a first parabolic reflecting mirror surface forming a substantially upper half having a focal point on the side; and a second parabolic reflecting mirror surface forming a substantially lower half having a focal point closer to the front lens than the front end of the filament of the bulb. The auxiliary lens is divided by an object-reflecting mirror surface, and the auxiliary lens is pivotally mounted to a rotating shaft installed horizontally so as to be substantially orthogonal to the optical axis so as to be rotatable in a direction orthogonal to the lens surface, The auxiliary lens is rotated and displaced by a lens attitude control drive mechanism such as a motor capable of rotationally controlling the shaft, and the auxiliary lens is switched between an attitude parallel to the optical axis of the reflector and an attitude perpendicular to the optical axis. Beam switching device for vehicle headlights.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990047310U JP2509507Y2 (en) | 1990-05-08 | 1990-05-08 | Headlight for vehicle having beam switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990047310U JP2509507Y2 (en) | 1990-05-08 | 1990-05-08 | Headlight for vehicle having beam switching device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH048203U true JPH048203U (en) | 1992-01-24 |
| JP2509507Y2 JP2509507Y2 (en) | 1996-09-04 |
Family
ID=31563125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990047310U Expired - Lifetime JP2509507Y2 (en) | 1990-05-08 | 1990-05-08 | Headlight for vehicle having beam switching device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2509507Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6395987U (en) * | 1986-12-12 | 1988-06-21 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6217001U (en) * | 1985-07-15 | 1987-01-31 | ||
| JPS62144001U (en) * | 1986-03-05 | 1987-09-11 | ||
| JPS62243239A (en) * | 1986-04-14 | 1987-10-23 | スタンレー電気株式会社 | Head light lamp for vehicle |
| JPH01253102A (en) * | 1988-03-31 | 1989-10-09 | Koito Mfg Co Ltd | Head lamp for vehicle |
-
1990
- 1990-05-08 JP JP1990047310U patent/JP2509507Y2/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6217001U (en) * | 1985-07-15 | 1987-01-31 | ||
| JPS62144001U (en) * | 1986-03-05 | 1987-09-11 | ||
| JPS62243239A (en) * | 1986-04-14 | 1987-10-23 | スタンレー電気株式会社 | Head light lamp for vehicle |
| JPH01253102A (en) * | 1988-03-31 | 1989-10-09 | Koito Mfg Co Ltd | Head lamp for vehicle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6395987U (en) * | 1986-12-12 | 1988-06-21 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2509507Y2 (en) | 1996-09-04 |
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