JPH0344975U - - Google Patents
Info
- Publication number
- JPH0344975U JPH0344975U JP1989104856U JP10485689U JPH0344975U JP H0344975 U JPH0344975 U JP H0344975U JP 1989104856 U JP1989104856 U JP 1989104856U JP 10485689 U JP10485689 U JP 10485689U JP H0344975 U JPH0344975 U JP H0344975U
- Authority
- JP
- Japan
- Prior art keywords
- control circuit
- iris
- oscillates
- braking
- 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
- 230000010355 oscillation Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Description
第１図は本考案の一実施例の回路図である。
１……輝度信号入力部、２……ドライバーアン
プ、３……アイリスモータ、４……コンパレータ
。
プ、３……アイリスモータ、４……コンパレータ
。
Claims (1)
- レンズのアイリス制御回路に於て、アイリスが
発振する領域まで絞られた事を検出し、制御回路
の制動量を変ることにより発振を防止する事を特
徴とするアイリス制御回路。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989104856U JPH0344975U (ja) | 1989-09-08 | 1989-09-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989104856U JPH0344975U (ja) | 1989-09-08 | 1989-09-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0344975U true JPH0344975U (ja) | 1991-04-25 |
Family
ID=31653636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989104856U Pending JPH0344975U (ja) | 1989-09-08 | 1989-09-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0344975U (ja) |
-
1989
- 1989-09-08 JP JP1989104856U patent/JPH0344975U/ja active Pending