JPH0364406U - - Google Patents
Info
- Publication number
- JPH0364406U JPH0364406U JP12459189U JP12459189U JPH0364406U JP H0364406 U JPH0364406 U JP H0364406U JP 12459189 U JP12459189 U JP 12459189U JP 12459189 U JP12459189 U JP 12459189U JP H0364406 U JPH0364406 U JP H0364406U
- Authority
- JP
- Japan
- Prior art keywords
- lens
- lenses
- focal length
- lens step
- lamp device
- 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 3
- 230000003287 optical effect Effects 0.000 claims 1
- 239000011295 pitch Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
Description
第１図は本考案に係る拡散角度可変型ランプ装
置の第一の実施例を示す平断面図、第２図は第１
図における−線断面図、第３図は同集光照射
時のレンズの位置を示す説明図、第４図は同拡散
照射時のレンズの位置を示す説明図、第５図は他
のレンズの組合せを示す集光照射時のレンズの位
置を示す説明図、第６図は同拡散照射時のレンズ
の位置を示す説明図、第７図は本考案の他の実施
例を示す平断面図、第８図は及び第９図は従来の
レンズの組合せａとその照射パターンｂを示す説
明図である。
１，２１……移動レンズ、２，２２……固定レ
ンズ、３……プロジエクタランプ、７，９……凸
レンズステツプ、８……レンズ移動手段、３０…
…リフレクタ、３１……光源。
FIG. 1 is a plan sectional view showing a first embodiment of a variable diffusion angle type lamp device according to the present invention, and FIG.
3 is an explanatory diagram showing the position of the lens during the same focused irradiation, FIG. 4 is an explanatory diagram showing the position of the lens during the same diffused irradiation, and FIG. An explanatory diagram showing the position of the lens during condensed irradiation showing the combination, FIG. 6 is an explanatory diagram showing the position of the lens during diffuse irradiation, and FIG. 7 is a plan cross-sectional view showing another embodiment of the present invention. FIGS. 8 and 9 are explanatory diagrams showing a conventional lens combination a and its irradiation pattern b. 1, 21...Moving lens, 2, 22...Fixed lens, 3...Projector lamp, 7, 9...Convex lens step, 8... Lens moving means, 30...
...Reflector, 31...Light source.
Claims (1)
多数のシリンドリカルなレンズステツプを等ピツ
チで並設した２枚のレンズを設け、両レンズの距
離を変更して照射光束の照射分布を変更する配光
可変型のランプ装置において、 前記２枚のレンズのレンズステツプの焦点距離
を、光束平行化手段側のレンズの焦点距離が、他
のレンズの焦点距離より大きくなるように構成す
ると共に、 両レンズの距離が光束平行化手段側のレンズの
焦点距離の２倍より大きくならない範囲で移動調
節することができるように構成したこと を特徴とする拡散角度可変型ランプ装置。 (2) ２枚の前面レンズに構成したシリンドリカ
ルなレンズステツプが凸レンズステツプと凸レン
ズステツプ、凸レンズステツプと凹レンズステツ
プの組合せであることを特徴とする請求項１記載
の拡散角度可変型ランプ装置。[Claims for Utility Model Registration] (1) Two lenses each having a large number of cylindrical lens steps arranged side by side at equal pitches are provided on the front optical axis of the beam collimating means, and the distance between the two lenses is changed. In a variable light distribution type lamp device that changes the irradiation distribution of the irradiated light beam, the focal length of the lens step of the two lenses is such that the focal length of the lens on the light beam collimating means side is longer than the focal length of the other lens. A variable diffusion angle type characterized in that the distance between both lenses can be adjusted within a range that does not exceed twice the focal length of the lens on the side of the beam collimating means. lamp device. (2) The variable diffusion angle type lamp device according to claim 1, wherein the cylindrical lens step formed on the two front lenses is a combination of a convex lens step and a convex lens step, or a combination of a convex lens step and a concave lens step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12459189U JPH0720801Y2 (en) | 1989-10-26 | 1989-10-26 | Variable diffusion angle lamp device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12459189U JPH0720801Y2 (en) | 1989-10-26 | 1989-10-26 | Variable diffusion angle lamp device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0364406U true JPH0364406U (en) | 1991-06-24 |
| JPH0720801Y2 JPH0720801Y2 (en) | 1995-05-15 |
Family
ID=31672501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12459189U Expired - Lifetime JPH0720801Y2 (en) | 1989-10-26 | 1989-10-26 | Variable diffusion angle lamp device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0720801Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004505386A (en) * | 2000-07-28 | 2004-02-19 | エヌ−トリグ リミテッド | Apparatus and method for determining physical object position and platform using the same |
| JP2013541808A (en) * | 2010-09-10 | 2013-11-14 | コーニンクレッカ フィリップス エヌ ヴェ | Equipment for spot irradiation |
-
1989
- 1989-10-26 JP JP12459189U patent/JPH0720801Y2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004505386A (en) * | 2000-07-28 | 2004-02-19 | エヌ−トリグ リミテッド | Apparatus and method for determining physical object position and platform using the same |
| JP2013541808A (en) * | 2010-09-10 | 2013-11-14 | コーニンクレッカ フィリップス エヌ ヴェ | Equipment for spot irradiation |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0720801Y2 (en) | 1995-05-15 |
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