JPH046108U - - Google Patents
Info
- Publication number
- JPH046108U JPH046108U JP4453890U JP4453890U JPH046108U JP H046108 U JPH046108 U JP H046108U JP 4453890 U JP4453890 U JP 4453890U JP 4453890 U JP4453890 U JP 4453890U JP H046108 U JPH046108 U JP H046108U
- Authority
- JP
- Japan
- Prior art keywords
- optical axis
- lens
- axis
- parallel
- movable
- 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 12
- 230000005540 biological transmission Effects 0.000 claims 3
- 238000009792 diffusion process Methods 0.000 claims 1
- 230000004907 flux Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Lens Barrels (AREA)
Description
第1図は本考案に係る配光可変型前照灯のレン
ズ駆動機構の一実施例を示す一部切欠した側断面
図、第2図は同正面図、第3図は同X軸駆動機構
部を示す第2図における−線断面図、第4図
は同Y軸駆動機構部を示す第2図における−
線断面図、第5図はレンズ駆動機構の駆動系の一
例を示すブロツク線図、第6図は本考案の原理及
び作用を示す説明図である。
1…プロジエクタランプ、2…コリメータレン
ズ、4…エイミング軸、6…シリンドリカル凹レ
ンズ、7…レンズ駆動機構、8…移動レンズ、9
…X軸駆動機構部、10…Y軸駆動機構部、11
…レンズキヤリア、12…Y螺子軸、13…レン
ズマウント、14…Y軸ガイド、15…X軸駆動
直流モータ、16…ベアリングホルダ、17…X
螺子軸、20…X軸ポテンシヨメータ、21…Y
軸駆動直流モータ、24…管軸、27…スライド
軸、28,29…ベーベルギヤ、30…Y軸ポテ
ンシヨメータ、CPU…駆動制御機構、V…車速
センサ、T…旋回角度センサ。
Fig. 1 is a partially cutaway side sectional view showing an embodiment of the lens drive mechanism of a variable light distribution headlamp according to the present invention, Fig. 2 is a front view of the same, and Fig. 3 is the same X-axis drive mechanism. FIG. 4 is a sectional view taken along the - line in FIG. 2 showing the Y-axis drive mechanism section, and FIG.
5 is a block diagram showing an example of a drive system of the lens drive mechanism, and FIG. 6 is an explanatory diagram showing the principle and operation of the present invention. DESCRIPTION OF SYMBOLS 1... Projector lamp, 2... Collimator lens, 4... Aiming axis, 6... Cylindrical concave lens, 7... Lens drive mechanism, 8... Moving lens, 9
...X-axis drive mechanism section, 10...Y-axis drive mechanism section, 11
...Lens carrier, 12...Y screw shaft, 13...Lens mount, 14...Y-axis guide, 15...X-axis drive DC motor, 16...Bearing holder, 17...X
Screw shaft, 20...X-axis potentiometer, 21...Y
Shaft drive DC motor, 24... tube shaft, 27... slide shaft, 28, 29... bevel gear, 30... Y-axis potentiometer, CPU... drive control mechanism, V... vehicle speed sensor, T... turning angle sensor.
Claims (1)
段の前方光軸上に固定レンズと移動レンズを配置
し、該移動レンズを光軸方向に移動して光束を集
光拡散制御すると共に、移動レンズの光軸を固定
レンズの光軸と平行移動して光束を光軸と傾斜制
御する配光可変型前照灯において、 前記移動レンズを光軸と直交するように、レン
ズキヤリアの一側に軸架設したY螺子軸に一端を
螺合して成るレンズマウントに固設し、該レンズ
キヤリアを、光軸と平行に固設したY軸ガイドに
対して光軸方向摺動自在に枢設すると共に、 前記光軸と平行に軸架設したX螺子軸に前記レ
ンズキヤリアの一端を螺合し、適宜回動伝達機構
を介してX軸駆動モータと回動連結したX軸駆動
機構部と、光軸と平行且つ回動自在に管軸を軸架
設すると共に、該管軸に対して軸方向出退自在、
且つ回動自在に連結したスライド軸の先端を前記
Y螺子軸と適宜回動伝達機構を介して回動連結し
、適宜回動伝達機構を介してY軸駆動モータと回
動連結したY軸駆動機構部とによつて、それぞれ
光軸方向と光軸と直交する方向に独立駆動変位す
ることを特徴とする 配光可変型前照灯のレンズ駆動機構。[Claims for Utility Model Registration] A fixed lens and a movable lens are arranged on the front optical axis of a parallel light beam irradiation means consisting of a projector lamp, etc., and the movable lens is moved in the optical axis direction to control the convergence and diffusion of the light beam. In addition, in a variable light distribution headlamp that moves the optical axis of the movable lens parallel to the optical axis of the fixed lens to control the inclination of the luminous flux with respect to the optical axis, a lens carrier is arranged so that the movable lens is perpendicular to the optical axis. The lens carrier is fixed to a lens mount having one end screwed to a Y screw shaft installed on one side, and the lens carrier is slidable in the optical axis direction with respect to a Y axis guide fixed parallel to the optical axis. an X-axis drive mechanism, in which one end of the lens carrier is screwed to an X-screw shaft installed parallel to the optical axis, and is rotationally connected to the X-axis drive motor via an appropriate rotation transmission mechanism; A tube shaft is installed rotatably in parallel with the optical axis, and the tube shaft is movable in the axial direction with respect to the tube shaft.
and a Y-axis drive in which the tip of the rotatably connected slide shaft is rotatably connected to the Y screw shaft via an appropriate rotation transmission mechanism, and rotationally connected to the Y-axis drive motor via an appropriate rotation transmission mechanism. A lens drive mechanism for a variable light distribution headlamp, characterized in that the lens drive mechanism of a variable light distribution headlamp is independently driven and displaced in an optical axis direction and in a direction orthogonal to the optical axis, respectively, by means of a mechanism part.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1990044538U JPH083922Y2 (en) | 1990-04-27 | 1990-04-27 | Lens drive mechanism for variable light distribution headlights |
US07/689,427 US5138540A (en) | 1990-04-24 | 1991-04-23 | Variable light distribution type headlamp |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1990044538U JPH083922Y2 (en) | 1990-04-27 | 1990-04-27 | Lens drive mechanism for variable light distribution headlights |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH046108U true JPH046108U (en) | 1992-01-21 |
JPH083922Y2 JPH083922Y2 (en) | 1996-01-31 |
Family
ID=31557933
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1990044538U Expired - Lifetime JPH083922Y2 (en) | 1990-04-24 | 1990-04-27 | Lens drive mechanism for variable light distribution headlights |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH083922Y2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018041664A (en) * | 2016-09-08 | 2018-03-15 | スタンレー電気株式会社 | Vehicular lighting fixture |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6081519B2 (en) | 2014-08-27 | 2017-02-15 | 三菱電機株式会社 | Headlight module and headlight |
US10442340B2 (en) | 2015-05-25 | 2019-10-15 | Mitsubishi Electric Corporation | Headlight module and headlight |
DE112016005125B4 (en) | 2015-11-09 | 2022-06-15 | Mitsubishi Electric Corporation | Optical projection instrument and headlight device |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57140101U (en) * | 1981-02-27 | 1982-09-02 | ||
JPH0225101U (en) * | 1988-08-05 | 1990-02-19 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5927134A (en) * | 1982-08-07 | 1984-02-13 | Matsushita Electric Ind Co Ltd | Safety device for high-frequency heater |
-
1990
- 1990-04-27 JP JP1990044538U patent/JPH083922Y2/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57140101U (en) * | 1981-02-27 | 1982-09-02 | ||
JPH0225101U (en) * | 1988-08-05 | 1990-02-19 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018041664A (en) * | 2016-09-08 | 2018-03-15 | スタンレー電気株式会社 | Vehicular lighting fixture |
Also Published As
Publication number | Publication date |
---|---|
JPH083922Y2 (en) | 1996-01-31 |
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