JPS63129901U - - Google Patents
Info
- Publication number
- JPS63129901U JPS63129901U JP2132187U JP2132187U JPS63129901U JP S63129901 U JPS63129901 U JP S63129901U JP 2132187 U JP2132187 U JP 2132187U JP 2132187 U JP2132187 U JP 2132187U JP S63129901 U JPS63129901 U JP S63129901U
- Authority
- JP
- Japan
- Prior art keywords
- light
- lens holder
- reflector
- irradiated
- 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
- 238000010586 diagram Methods 0.000 description 1
Description
第1図は、この考案に係るプロジエクタヘツド
ランプ構造の概略側断面図、第2図は、遮蔽板の
進退・位置決めによる照射光量調節状態について
の説明図、第3図は、第1図中の矢示方向から
みた側断面図、第4図は、この考案の要部を示す
概略斜視図、そして第5図は、従来のプロジエク
タヘツドランプ構造の概略側断面図である。
1,20……プロジエクタヘツドランプ構造、
2……リフレクタ、3,21……レンズホルダ、
4……レンズ、5……光線、6……第1焦点、8
……バルブ(光源)、9……第2焦点、22……
遮蔽板、23……通光孔。
Fig. 1 is a schematic side sectional view of the projector head lamp structure according to this invention, Fig. 2 is an explanatory diagram of how the amount of irradiated light is adjusted by advancing and retreating and positioning the shielding plate, and Fig. 3 is the same as in Fig. 1. 4 is a schematic perspective view showing the main parts of this invention, and FIG. 5 is a schematic side sectional view of a conventional projector head lamp structure. 1, 20... projector head lamp structure,
2... Reflector, 3, 21... Lens holder,
4...Lens, 5...Light ray, 6...First focal point, 8
... Bulb (light source), 9 ... Second focal point, 22 ...
Shielding plate, 23...light passing hole.
Claims (1)
源より発しリフレクタにて反射され前方へ照射さ
れる光線を、リフレクタの前方に配した筒状のレ
ンズホルダ中に形成される第2焦点へ集光せしめ
た後、レンズホルダの前方に配したレンズを介し
て外部へ照射せしめるプロジエクタヘツドランプ
構造に於いて、 上記レンズホルダ内に、レンズホルダの横断面
形状に相応する外形を有し且つその中心部に通光
孔を有する遮蔽板を光線照射方向に直角交差状態
で配し、この遮蔽板を光線の照射方向で進退・位
置決めせしめることによりレンズへの入射光量を
調整し、外部への照射光量を調整自在としたこと
を特徴とするプロジエクタヘツドランプ構造。[Claim for Utility Model Registration] Light rays emitted from a light source placed at the first focus of a semi-ellipsoidal reflector, reflected by the reflector, and irradiated forward are transmitted into a cylindrical lens holder placed in front of the reflector. In a projector head lamp structure in which the light is condensed to a second focal point formed and then irradiated to the outside through a lens placed in front of the lens holder, a light beam is placed inside the lens holder in the cross-sectional shape of the lens holder. The amount of light incident on the lens can be adjusted by arranging shielding plates having a corresponding external shape and having a light passing hole in the center so as to intersect at right angles to the direction of irradiation of the light beam, and moving the shielding plates back and forth in the direction of irradiation of the light beam and positioning them. A projector head lamp structure characterized in that the amount of light irradiated to the outside can be adjusted freely.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2132187U JPS63129901U (en) | 1987-02-18 | 1987-02-18 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2132187U JPS63129901U (en) | 1987-02-18 | 1987-02-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS63129901U true JPS63129901U (en) | 1988-08-25 |
Family
ID=30817658
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2132187U Pending JPS63129901U (en) | 1987-02-18 | 1987-02-18 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS63129901U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0186001U (en) * | 1987-11-28 | 1989-06-07 |
-
1987
- 1987-02-18 JP JP2132187U patent/JPS63129901U/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0186001U (en) * | 1987-11-28 | 1989-06-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS63129901U (en) | ||
JPH0211662U (en) | ||
JPS6236169Y2 (en) | ||
JPS61138099U (en) | ||
JPH0318830U (en) | ||
JPS60112010U (en) | Spotlight with diffuser | |
JPS63111931U (en) | ||
JPS6052804U (en) | Visible light centering device | |
JPH0343605Y2 (en) | ||
JPS58121B2 (en) | Shoumeisouchi | |
JPS60112011U (en) | Spotlight with diffuser | |
JPS6440102U (en) | ||
JPS62142488U (en) | ||
JPH0214706U (en) | ||
JPS623269U (en) | ||
JPS63128603U (en) | ||
JPH0422971U (en) | ||
JPH0375425U (en) | ||
JPH01177738U (en) | ||
JPS63182714U (en) | ||
JPS61119106U (en) | ||
JPH0164790U (en) | ||
JPS63159205U (en) | ||
JPH021171U (en) | ||
JPH03120965U (en) |