JPS56113109A - Optical system supporting structure - Google Patents

Optical system supporting structure

Info

Publication number
JPS56113109A
JPS56113109A JP1686780A JP1686780A JPS56113109A JP S56113109 A JPS56113109 A JP S56113109A JP 1686780 A JP1686780 A JP 1686780A JP 1686780 A JP1686780 A JP 1686780A JP S56113109 A JPS56113109 A JP S56113109A
Authority
JP
Japan
Prior art keywords
thermal expansion
coefficient
concave mirror
supporting member
bodytube
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
JP1686780A
Other languages
Japanese (ja)
Inventor
Takashi Kubota
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP1686780A priority Critical patent/JPS56113109A/en
Publication of JPS56113109A publication Critical patent/JPS56113109A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/008—Mountings, adjusting means, or light-tight connections, for optical elements with means for compensating for changes in temperature or for controlling the temperature; thermal stabilisation

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lens Barrels (AREA)

Abstract

PURPOSE:To eliminate a variation of the focusing position caused temperature variation, by supporting a concave mirror by the supporting member which is connected with the bottom part of the bodytube containing the concave mirror, and setting the coefficient of thermal expansion of the supporting member to a prescribed value which is larger than the coefficient of thermal expansion of the body tube. CONSTITUTION:A light beam which has passed through the transparent window 2 is reflected by the concave mirror 4, and the reflected ray A' is focused on the photoelectric conversion element 3. If the bodytube 1, for example, is made an in- bar having the coefficent of thermal expansion of 1.2X10<-6>, the supporting member is constituted of an aluminum alloy having the coefficient of thermal expansion of 24X10<-6>, and the ratio of each length is made 20 to 1, the image forming position of a focus is not varied even if a temperature is varied.
JP1686780A 1980-02-14 1980-02-14 Optical system supporting structure Pending JPS56113109A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1686780A JPS56113109A (en) 1980-02-14 1980-02-14 Optical system supporting structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1686780A JPS56113109A (en) 1980-02-14 1980-02-14 Optical system supporting structure

Publications (1)

Publication Number Publication Date
JPS56113109A true JPS56113109A (en) 1981-09-05

Family

ID=11928155

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1686780A Pending JPS56113109A (en) 1980-02-14 1980-02-14 Optical system supporting structure

Country Status (1)

Country Link
JP (1) JPS56113109A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5874551A (en) * 1981-10-29 1983-05-06 電気化学工業株式会社 Manufacture of ready mixed concrete
JPS5877307U (en) * 1981-11-20 1983-05-25 株式会社日立製作所 Zoom lens for video camera
JPS58168024A (en) * 1982-03-29 1983-10-04 Hitachi Ltd Light source device
JPS5915205A (en) * 1982-07-17 1984-01-26 Canon Inc Laser unit
JPS6124710U (en) * 1984-07-19 1986-02-14 株式会社 高橋製作所 Temperature compensation device in reflecting telescope
JPS61116306A (en) * 1984-10-19 1986-06-03 Fuji Photo Film Co Ltd Holding device of image-forming lens
JPS6432213A (en) * 1987-07-29 1989-02-02 Ricoh Kk Image forming device
WO2001006294A1 (en) * 1999-07-15 2001-01-25 Carl Zeiss Optical system
US6554244B1 (en) 1998-11-05 2003-04-29 Leica Geosystems Ag Device for thermally, stably supporting a miniaturized component
JP2021110855A (en) * 2020-01-13 2021-08-02 株式会社デンソー Virtual image display device

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5874551A (en) * 1981-10-29 1983-05-06 電気化学工業株式会社 Manufacture of ready mixed concrete
JPS5877307U (en) * 1981-11-20 1983-05-25 株式会社日立製作所 Zoom lens for video camera
JPS58168024A (en) * 1982-03-29 1983-10-04 Hitachi Ltd Light source device
JPH0228122B2 (en) * 1982-03-29 1990-06-21 Hitachi Ltd
JPS5915205A (en) * 1982-07-17 1984-01-26 Canon Inc Laser unit
JPS6124710U (en) * 1984-07-19 1986-02-14 株式会社 高橋製作所 Temperature compensation device in reflecting telescope
JPS61116306A (en) * 1984-10-19 1986-06-03 Fuji Photo Film Co Ltd Holding device of image-forming lens
JPH043848B2 (en) * 1984-10-19 1992-01-24
JPS6432213A (en) * 1987-07-29 1989-02-02 Ricoh Kk Image forming device
US6554244B1 (en) 1998-11-05 2003-04-29 Leica Geosystems Ag Device for thermally, stably supporting a miniaturized component
WO2001006294A1 (en) * 1999-07-15 2001-01-25 Carl Zeiss Optical system
JP2021110855A (en) * 2020-01-13 2021-08-02 株式会社デンソー Virtual image display device

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