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JPS5567610A - Damper for pendulum in optical system - Google Patents

Damper for pendulum in optical system

Info

Publication number
JPS5567610A
JPS5567610A JP14043478A JP14043478A JPS5567610A JP S5567610 A JPS5567610 A JP S5567610A JP 14043478 A JP14043478 A JP 14043478A JP 14043478 A JP14043478 A JP 14043478A JP S5567610 A JPS5567610 A JP S5567610A
Authority
JP
Japan
Prior art keywords
damper plate
lens
compensation
damper
pendulum
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
Application number
JP14043478A
Other languages
Japanese (ja)
Inventor
Tadashi Iizuka
Masaharu Hayashi
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.)
SOTSUKISHIYA KK
Sokkisha Co Ltd
Original Assignee
SOTSUKISHIYA KK
Sokkisha 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 SOTSUKISHIYA KK, Sokkisha Co Ltd filed Critical SOTSUKISHIYA KK
Priority to JP14043478A priority Critical patent/JPS5567610A/en
Publication of JPS5567610A publication Critical patent/JPS5567610A/en
Pending legal-status Critical Current

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Landscapes

  • Vibration Prevention Devices (AREA)

Abstract

PURPOSE: To obtain broad compensation rage, by fitting the damper plate to the pendulum and providing at least a pair of magnets by clipping the damper plate or its part.
CONSTITUTION: The compensation lens 4 having equal focus to the objective lens 6 is borne at the bearing 9 on the orthogonal shaft of the gimbal 5 so that the lens can be corresponded to the slope. The compensation lens 4 is located at the position of the distance f as shown and the metallic damper plate 12 of circle or square shape is fixed to the lens frame cylinder. Since the damper plate 12 vibrates horizontally, the magnets 10, 11 are located so that they clip the damper plate 12. When the damper plate 12 moves, it intersects the magnetic force of lines, eddy current is locally caused on the damper plate and braking is made with the brake force caused opposite to the movement of the damper plate.
COPYRIGHT: (C)1980,JPO&Japio
JP14043478A 1978-11-16 1978-11-16 Damper for pendulum in optical system Pending JPS5567610A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14043478A JPS5567610A (en) 1978-11-16 1978-11-16 Damper for pendulum in optical system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14043478A JPS5567610A (en) 1978-11-16 1978-11-16 Damper for pendulum in optical system

Publications (1)

Publication Number Publication Date
JPS5567610A true JPS5567610A (en) 1980-05-21

Family

ID=15268569

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14043478A Pending JPS5567610A (en) 1978-11-16 1978-11-16 Damper for pendulum in optical system

Country Status (1)

Country Link
JP (1) JPS5567610A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60188315U (en) * 1984-05-23 1985-12-13 株式会社　測機舎 Damper for pendulum
JPH0335416U (en) * 1989-08-11 1991-04-08
JPH0394115A (en) * 1989-09-07 1991-04-18 Tokyu Constr Co Ltd Verticality measuring system for erection of constructing material

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5045298U (en) * 1973-08-22 1975-05-07

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5045298U (en) * 1973-08-22 1975-05-07

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60188315U (en) * 1984-05-23 1985-12-13 株式会社　測機舎 Damper for pendulum
JPH0335416U (en) * 1989-08-11 1991-04-08
JPH0394115A (en) * 1989-09-07 1991-04-18 Tokyu Constr Co Ltd Verticality measuring system for erection of constructing material

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