JPS5350730A - Presettable zooming speed controller - Google Patents
Presettable zooming speed controllerInfo
- Publication number
- JPS5350730A JPS5350730A JP12527076A JP12527076A JPS5350730A JP S5350730 A JPS5350730 A JP S5350730A JP 12527076 A JP12527076 A JP 12527076A JP 12527076 A JP12527076 A JP 12527076A JP S5350730 A JPS5350730 A JP S5350730A
- Authority
- JP
- Japan
- Prior art keywords
- speed controller
- presettable
- zooming speed
- zooming
- follow
- 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
Landscapes
- Focusing (AREA)
- Lens Barrels (AREA)
- Automatic Focus Adjustment (AREA)
Abstract
PURPOSE: To achieve the improvement in the follow-up characteristics of a zooming speed controller by providing a bridge circuit comprising connecting FET constant current circuits mutually in opposite directions to a zooming control circuit.
COPYRIGHT: (C)1978,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12527076A JPS606483B2 (en) | 1976-10-19 | 1976-10-19 | Presetable zoom speed control |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12527076A JPS606483B2 (en) | 1976-10-19 | 1976-10-19 | Presetable zoom speed control |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5350730A true JPS5350730A (en) | 1978-05-09 |
JPS606483B2 JPS606483B2 (en) | 1985-02-19 |
Family
ID=14905915
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12527076A Expired JPS606483B2 (en) | 1976-10-19 | 1976-10-19 | Presetable zoom speed control |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS606483B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001124977A (en) * | 1999-10-28 | 2001-05-11 | Canon Inc | Optical device, optical device drive unit, and camera system |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61149577U (en) * | 1985-03-08 | 1986-09-16 |
-
1976
- 1976-10-19 JP JP12527076A patent/JPS606483B2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001124977A (en) * | 1999-10-28 | 2001-05-11 | Canon Inc | Optical device, optical device drive unit, and camera system |
Also Published As
Publication number | Publication date |
---|---|
JPS606483B2 (en) | 1985-02-19 |
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