JPS6384110U - - Google Patents
Info
- Publication number
- JPS6384110U JPS6384110U JP17961386U JP17961386U JPS6384110U JP S6384110 U JPS6384110 U JP S6384110U JP 17961386 U JP17961386 U JP 17961386U JP 17961386 U JP17961386 U JP 17961386U JP S6384110 U JPS6384110 U JP S6384110U
- Authority
- JP
- Japan
- Prior art keywords
- object side
- lens
- meniscus lens
- camera
- built
- 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
- 230000005499 meniscus Effects 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims 1
Landscapes
- Lenses (AREA)
Description
第１図は、マスターレンズの物体側にテレコン
バータを装着するレンズの断面図、第２図は、マ
スターレンズの物体側に、ワイドコンバータを装
着するレンズの断面図、第３図は、ビデオカメラ
の断面図である。
１はメニスカスレンズ、２は絞り、３はマスタ
ーレンズ、４，５はテレコンバーター。
Figure 1 is a sectional view of a lens with a teleconverter attached to the object side of the master lens, Figure 2 is a sectional view of a lens with a wide converter attached to the object side of the master lens, and Figure 3 is a sectional view of a video camera. FIG. 1 is a meniscus lens, 2 is an aperture, 3 is a master lens, and 4 and 5 are teleconverters.
Claims (1)
カスレンズ、絞り、正の屈折力を有するレンズ群
の順に配置されたマスターレンズを有し、前記メ
ニスカスレンズの物体側にアフオーカルコンバー
タを出し入れすることを特徴とする可変焦点距離
の光学系を内蔵するカメラ。 A master lens is arranged in order from the object side, including a meniscus lens with a convex surface facing the object side, an aperture stop, and a lens group having positive refractive power, and an afocal converter is inserted into and removed from the object side of the meniscus lens. A camera with a built-in variable focal length optical system.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17961386U JPS6384110U (en) | 1986-11-20 | 1986-11-20 | |
| US07/122,217 US4854679A (en) | 1986-11-20 | 1987-11-18 | Photographic system having front conversion lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17961386U JPS6384110U (en) | 1986-11-20 | 1986-11-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6384110U true JPS6384110U (en) | 1988-06-02 |
Family
ID=31122828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17961386U Pending JPS6384110U (en) | 1986-11-20 | 1986-11-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6384110U (en) |
-
1986
- 1986-11-20 JP JP17961386U patent/JPS6384110U/ja active Pending