JPS627018A - Reflection type condensing device - Google Patents

Reflection type condensing device

Info

Publication number
JPS627018A
JPS627018A JP14589385A JP14589385A JPS627018A JP S627018 A JPS627018 A JP S627018A JP 14589385 A JP14589385 A JP 14589385A JP 14589385 A JP14589385 A JP 14589385A JP S627018 A JPS627018 A JP S627018A
Authority
JP
Japan
Prior art keywords
light
vibrating
mirrors
device
made incident
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
JP14589385A
Inventor
Giichi Miyajima
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP14589385A priority Critical patent/JPS627018A/en
Publication of JPS627018A publication Critical patent/JPS627018A/en
Application status is Pending legal-status Critical

Links

Abstract

PURPOSE: To change the condensing state of reflected light flux by arranging many fine vibrating reflection mirrors to be individually vibrated on a reflection base board and changing the inclination of the reflection mirrors.
CONSTITUTION: Laser light radiated from a laser diode 27 is converted into parallel light by a collimater lens 28 and the parallel light is made incident upon a semi-spherical condensing device 19 on which the vibrating reflection mirrors are arranged. The reflected light path of the light made incident upon the device 19 is controlled by inclining the many vibrating mirrors arranged spherically on the device 19 and the incident light is reflected in the prism direction as condensed light, its optical path is refracted by the prism 31 and converged into a focus surface 32. The reflected light from the focus surface 32 is made incident upon a photoelectric sensor 29, the converged state of light on the focus surface 32 is detected by the sensor 29 and a signal outputted from the sensor 29 is fed back to the condensing device 19. Consequently, the inclined angles of respective vibrating mirrors can be controlled, the converged state of light can be continuously controlled and complex parts such as a lens driving mechanism can be omitted.
COPYRIGHT: (C)1987,JPO&Japio
JP14589385A 1985-07-04 1985-07-04 Reflection type condensing device Pending JPS627018A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14589385A JPS627018A (en) 1985-07-04 1985-07-04 Reflection type condensing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14589385A JPS627018A (en) 1985-07-04 1985-07-04 Reflection type condensing device

Publications (1)

Publication Number Publication Date
JPS627018A true JPS627018A (en) 1987-01-14

Family

ID=15395485

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14589385A Pending JPS627018A (en) 1985-07-04 1985-07-04 Reflection type condensing device

Country Status (1)

Country Link
JP (1) JPS627018A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0534711U (en) * 1991-10-04 1993-05-07 国際電気株式会社 Voltage-controlled oscillator
US6836459B2 (en) 2000-08-02 2004-12-28 Matsushita Electric Industrial Co., Ltd. Optical pickup device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0534711U (en) * 1991-10-04 1993-05-07 国際電気株式会社 Voltage-controlled oscillator
US6836459B2 (en) 2000-08-02 2004-12-28 Matsushita Electric Industrial Co., Ltd. Optical pickup device

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