Nothing Special   »   [go: up one dir, main page]

JPS54157431A - Shutter for pickup device - Google Patents

Shutter for pickup device

Info

Publication number
JPS54157431A
JPS54157431A JP6641578A JP6641578A JPS54157431A JP S54157431 A JPS54157431 A JP S54157431A JP 6641578 A JP6641578 A JP 6641578A JP 6641578 A JP6641578 A JP 6641578A JP S54157431 A JPS54157431 A JP S54157431A
Authority
JP
Japan
Prior art keywords
shutter
slit
perform
motor
action
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
Application number
JP6641578A
Other languages
Japanese (ja)
Other versions
JPS6125141B2 (en
Inventor
Yutaka Yunoki
Ryoichi Tozono
Masahiro Kishi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP6641578A priority Critical patent/JPS54157431A/en
Publication of JPS54157431A publication Critical patent/JPS54157431A/en
Publication of JPS6125141B2 publication Critical patent/JPS6125141B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Shutters For Cameras (AREA)

Abstract

PURPOSE: To realize an automation easily by processing the detection signals through the shutter control circuit to perform the position correction of the open slit before start of the shutter action and also driving the pulse motor to perform the shutter action.
CONSTITUTION: Pulse motor 29 has one turn at N-step and performs one shutter action at n-step of the measure of N-step. Shutter disk 27 is drive by motor 29 and possesses open slit 25 on one circuimference in the N/n symmetry. The open slit position detector circuit detects whether or not slit 25 is at the normal position before operation of the shutter, and the detection signals are processed via the shutter control circuit to perform the position correction of slit 25 before start of the shutter operation. At the same time, motor 29 is driven for operation of the shutter. As a result, the same shutter speed can be always obtained to realize an automation easily.
COPYRIGHT: (C)1979,JPO&Japio
JP6641578A 1978-06-02 1978-06-02 Shutter for pickup device Granted JPS54157431A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6641578A JPS54157431A (en) 1978-06-02 1978-06-02 Shutter for pickup device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6641578A JPS54157431A (en) 1978-06-02 1978-06-02 Shutter for pickup device

Publications (2)

Publication Number Publication Date
JPS54157431A true JPS54157431A (en) 1979-12-12
JPS6125141B2 JPS6125141B2 (en) 1986-06-14

Family

ID=13315132

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6641578A Granted JPS54157431A (en) 1978-06-02 1978-06-02 Shutter for pickup device

Country Status (1)

Country Link
JP (1) JPS54157431A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4370677A (en) * 1980-12-11 1983-01-25 The United States Of America As Represented By The Secretary Of The Navy Rotating shutter system for improving the resolution of a visual display system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4370677A (en) * 1980-12-11 1983-01-25 The United States Of America As Represented By The Secretary Of The Navy Rotating shutter system for improving the resolution of a visual display system

Also Published As

Publication number Publication date
JPS6125141B2 (en) 1986-06-14

Similar Documents

Publication Publication Date Title
JPS5225208A (en) Driving circuit for brushless dc motor
JPS56165973A (en) Address signal read-in device
JPS5644133A (en) Auto reverse unit with program searching mechanism
JPS54157431A (en) Shutter for pickup device
JPS5468609A (en) Tape running control method
JPS5412081A (en) Numerical value controller
JPS5219925A (en) Memory unit
JPS5745631A (en) Position detector
JPS55112607A (en) Numeral control unit
JPS5219219A (en) Torque control apparatus for ac motors
JPS5240188A (en) Device for detecting damages of bearings
JPS54113307A (en) Rotating condition detector
JPS5352913A (en) Sensitivity adjustment for servoed speed control
JPS5587077A (en) Detector for electronic watch
JPS5347858A (en) Active sensor
JPS55105235A (en) Motor drive unit of camera
JPS5243925A (en) Velocity loop control device in servo mechanism
JPS5246423A (en) Control circuit of small-sized direct current motor
JPS5268424A (en) Low noise driving for copying machine
JPS5446525A (en) Driving device for dc motor
JPS51124406A (en) Speed control circuit for rotary head
JPS5235599A (en) Watching device
JPS5778357A (en) Brushless direct current motor
JPS5491304A (en) Controller for video tape recorder
JPS52108582A (en) Turntable driving device