JPS56140313A - Illumination system for low-magnification objective lens - Google Patents

Illumination system for low-magnification objective lens

Info

Publication number
JPS56140313A
JPS56140313A JP4445080A JP4445080A JPS56140313A JP S56140313 A JPS56140313 A JP S56140313A JP 4445080 A JP4445080 A JP 4445080A JP 4445080 A JP4445080 A JP 4445080A JP S56140313 A JPS56140313 A JP S56140313A
Authority
JP
Japan
Prior art keywords
lens
lens group
group
illumination system
side focus
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
JP4445080A
Other languages
Japanese (ja)
Other versions
JPH0245164B2 (en
Inventor
Takeshi Yonekubo
Chikara Nagano
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.)
Olympus Corp
Original Assignee
Olympus Optical 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 Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Priority to JP4445080A priority Critical patent/JPS56140313A/en
Publication of JPS56140313A publication Critical patent/JPS56140313A/en
Publication of JPH0245164B2 publication Critical patent/JPH0245164B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B21/00—Microscopes
    • G02B21/06—Means for illuminating specimens
    • G02B21/08—Condensers

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Microscoopes, Condenser (AREA)

Abstract

PURPOSE:To facilitate adjustment of an illumination system for low-magnification objective lens by constituting a condenser lens consisting of the three groups, a positive lens group, a negative lens group and a positive lens group, and an aperture diaphragm in one body. CONSTITUTION:A light source 20, a collector lens 21 of which the front side focus is roughly aligned to the light source 20, a field stop 22 which is disposed near the rear side focus of the collector lens 21, a window lens 23 of which the front side focus is roughly aligned to the field stop 22, a condenser lens 24 of the 3-group constitution consisting of a positive lens group L1, a negative lens group L2 and a positive lens group L3, and an aperture diaphragm 25 which is disposed near the front side focus of the positive lens group L3 between the negative lens group L2 and the positive lens group L3 are disposed successively on the optical axis, and the collector lens 21 and the window lens 23 as well as the window lens 23 and the condenser lens 24 constitute afocal systems respectively, whereby the Ko hler's illumination system for low magnifications including extra low magnifications is realized.
JP4445080A 1980-04-04 1980-04-04 Illumination system for low-magnification objective lens Granted JPS56140313A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4445080A JPS56140313A (en) 1980-04-04 1980-04-04 Illumination system for low-magnification objective lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4445080A JPS56140313A (en) 1980-04-04 1980-04-04 Illumination system for low-magnification objective lens

Publications (2)

Publication Number Publication Date
JPS56140313A true JPS56140313A (en) 1981-11-02
JPH0245164B2 JPH0245164B2 (en) 1990-10-08

Family

ID=12691820

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4445080A Granted JPS56140313A (en) 1980-04-04 1980-04-04 Illumination system for low-magnification objective lens

Country Status (1)

Country Link
JP (1) JPS56140313A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007121705A1 (en) * 2006-04-20 2007-11-01 Nanofocus Ag Device and method for high-intensity uniform illumination with minimal light reflection for use in microscopes

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5282347A (en) * 1975-12-24 1977-07-09 American Optical Corp Two elements condenser for microscope
JPS5463767A (en) * 1975-08-25 1979-05-22 American Optical Corp Microscope illuminator
JPS54124750A (en) * 1978-03-20 1979-09-27 Nippon Chemical Ind Optical condenser for microscope

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5463767A (en) * 1975-08-25 1979-05-22 American Optical Corp Microscope illuminator
JPS5282347A (en) * 1975-12-24 1977-07-09 American Optical Corp Two elements condenser for microscope
JPS54124750A (en) * 1978-03-20 1979-09-27 Nippon Chemical Ind Optical condenser for microscope

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007121705A1 (en) * 2006-04-20 2007-11-01 Nanofocus Ag Device and method for high-intensity uniform illumination with minimal light reflection for use in microscopes
JP2009534694A (en) * 2006-04-20 2009-09-24 ナノフォーカス アクチエンゲゼルシャフト A device for irradiating with uniform light intensity with minimal light reflection for use in a microscope
US8023184B2 (en) 2006-04-20 2011-09-20 Nanofocus Ag Device and method for high-intensity uniform illumination with minimal light reflection for use in microscopes

Also Published As

Publication number Publication date
JPH0245164B2 (en) 1990-10-08

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