JPS6384111U - - Google Patents
Info
- Publication number
- JPS6384111U JPS6384111U JP17961486U JP17961486U JPS6384111U JP S6384111 U JPS6384111 U JP S6384111U JP 17961486 U JP17961486 U JP 17961486U JP 17961486 U JP17961486 U JP 17961486U JP S6384111 U JPS6384111 U JP S6384111U
- Authority
- JP
- Japan
- Prior art keywords
- lens
- object side
- diaphragm
- meniscus lens
- 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
Landscapes
- Lenses (AREA)
Description
第１図は、マスターレンズの物体側にメニスカ
スレンズとテレコンバータを装着した時のレンズ
の断面図、第２図は、マスターレンズの物体側に
、メニスカスレンズとワイドコンバータを装着し
た時のレンズの断面図、第３図は、ビデオカメラ
にコンバーターを内蔵させた図である。
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 cross-sectional view of the lens when a meniscus lens and a teleconverter are attached to the object side of the master lens, and Figure 2 is a cross-sectional view of the lens when a meniscus lens and a wide converter are attached to the object side of the master lens. The cross-sectional view, FIG. 3, shows a video camera with a built-in converter. 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
ニスカスレンズと絞りの間に、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, a meniscus lens with a convex surface facing the object side, a diaphragm, and a lens group having positive refractive power, and an afocal converter is provided between the meniscus lens and the diaphragm. A camera with a built-in variable focal length optical system that can be moved in and out.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17961486U JPS6384111U (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 |
|---|---|---|---|
| JP17961486U JPS6384111U (en) | 1986-11-20 | 1986-11-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6384111U true JPS6384111U (en) | 1988-06-02 |
Family
ID=31122830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17961486U Pending JPS6384111U (en) | 1986-11-20 | 1986-11-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6384111U (en) |
-
1986
- 1986-11-20 JP JP17961486U patent/JPS6384111U/ja active Pending