JPS6420827A - Retinal camera of laser scanning system - Google Patents

Retinal camera of laser scanning system

Info

Publication number
JPS6420827A
JPS6420827A JP62176760A JP17676087A JPS6420827A JP S6420827 A JPS6420827 A JP S6420827A JP 62176760 A JP62176760 A JP 62176760A JP 17676087 A JP17676087 A JP 17676087A JP S6420827 A JPS6420827 A JP S6420827A
Authority
JP
Japan
Prior art keywords
retinal
laser
altered
laser beam
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
JP62176760A
Other languages
Japanese (ja)
Inventor
Akihiko Sekine
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.)
Topcon Corp
Original Assignee
Topcon Corp
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 Topcon Corp filed Critical Topcon Corp
Priority to JP62176760A priority Critical patent/JPS6420827A/en
Priority to US07/212,388 priority patent/US4960327A/en
Priority to DE3823136A priority patent/DE3823136A1/en
Priority to FR8809560A priority patent/FR2618064B1/en
Publication of JPS6420827A publication Critical patent/JPS6420827A/en
Priority to US07/549,178 priority patent/US5066116A/en
Pending legal-status Critical Current

Links

Landscapes

  • Eye Examination Apparatus (AREA)

Abstract

PURPOSE:To obtain a sharp retinal image having high resolving power, by providing a laser spot diameter control means to an irradiation system. CONSTITUTION:The laser beam oscillated by a laser oscillator 1 in an irradia tion system transmits through a beam splitter 2 and subsequently passes through a beam expander 3 to be altered in its beam diameter. The laser beam altered in its beam diameter is incident to a galvanic mirror 7 through a polygon mirror 4 and variable power lenses 5, 6. The laser beam reflected by the galvanic mirror 7 is allowed to irradiate the retinal part Ef of an eye E to be examined through a relay lens 8, a focus lens 9 and an objective lens 10. The spot diame ter of the laser beam scanning the retinal part Ef can be arbitrarily altered by replacing the beam expander 3. The reflected beam from the retinal part Ef is incident on a photomultiplier tube 11 and a retinal image is projected on a monitor television 12.
JP62176760A 1987-07-15 1987-07-15 Retinal camera of laser scanning system Pending JPS6420827A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP62176760A JPS6420827A (en) 1987-07-15 1987-07-15 Retinal camera of laser scanning system
US07/212,388 US4960327A (en) 1987-07-15 1988-06-27 Optical system in a lasar scanning eye fundus camera
DE3823136A DE3823136A1 (en) 1987-07-15 1988-07-05 OPTICAL SYSTEM FOR A FUNDUS CAMERA WITH LASER SCAN
FR8809560A FR2618064B1 (en) 1987-07-15 1988-07-13 OPTICAL SYSTEM IN AN APPARATUS FOR PHOTOGRAPHING A LASER-SCANNING-TYPE EYE BACKGROUND
US07/549,178 US5066116A (en) 1987-07-15 1990-07-06 Optical system in a laser scanning eye fundus camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62176760A JPS6420827A (en) 1987-07-15 1987-07-15 Retinal camera of laser scanning system

Publications (1)

Publication Number Publication Date
JPS6420827A true JPS6420827A (en) 1989-01-24

Family

ID=16019330

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62176760A Pending JPS6420827A (en) 1987-07-15 1987-07-15 Retinal camera of laser scanning system

Country Status (1)

Country Link
JP (1) JPS6420827A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5895886A (en) * 1995-04-20 1999-04-20 Dragerwerk Aktiengesellschaft Supply unit
JP2010279576A (en) * 2009-06-05 2010-12-16 Canon Inc Method of forming tomographic image by oct
JP2011125683A (en) * 2009-11-17 2011-06-30 Canon Inc Optical-image pickup apparatus and method for controlling the same
JP2015534482A (en) * 2012-10-01 2015-12-03 オプトス ピーエルシー Improvements in scanning laser ophthalmoscope or improvements in scanning laser ophthalmoscope
JP2017189219A (en) * 2016-04-11 2017-10-19 株式会社トプコン Ophthalmologic imaging apparatus
JP2021183214A (en) * 2020-05-08 2021-12-02 株式会社トプコン Ophthalmologic imaging apparatus

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58179054A (en) * 1982-04-15 1983-10-20 Yokogawa Hokushin Electric Corp Optical scanner
JPS59115024A (en) * 1982-12-11 1984-07-03 カ−ル・ツアイス−スチフツング Method and apparatus for forming eye bottom image
JPS60220309A (en) * 1984-04-18 1985-11-05 Ricoh Co Ltd Light scanning optical system
JPS62117524A (en) * 1985-09-17 1987-05-29 アイ・リサ−チ・インステイテユ−ト・オブ・ザ・レテイナ・フアウンデイシヨン Double scanning optical apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58179054A (en) * 1982-04-15 1983-10-20 Yokogawa Hokushin Electric Corp Optical scanner
JPS59115024A (en) * 1982-12-11 1984-07-03 カ−ル・ツアイス−スチフツング Method and apparatus for forming eye bottom image
JPS60220309A (en) * 1984-04-18 1985-11-05 Ricoh Co Ltd Light scanning optical system
JPS62117524A (en) * 1985-09-17 1987-05-29 アイ・リサ−チ・インステイテユ−ト・オブ・ザ・レテイナ・フアウンデイシヨン Double scanning optical apparatus

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5895886A (en) * 1995-04-20 1999-04-20 Dragerwerk Aktiengesellschaft Supply unit
JP2010279576A (en) * 2009-06-05 2010-12-16 Canon Inc Method of forming tomographic image by oct
JP2011125683A (en) * 2009-11-17 2011-06-30 Canon Inc Optical-image pickup apparatus and method for controlling the same
JP2015534482A (en) * 2012-10-01 2015-12-03 オプトス ピーエルシー Improvements in scanning laser ophthalmoscope or improvements in scanning laser ophthalmoscope
US9924862B2 (en) 2012-10-01 2018-03-27 Optos Plc Ophthalmoscope
JP2018108400A (en) * 2012-10-01 2018-07-12 オプトス ピーエルシー Improvement in scanning laser ophthalmoscope or improvement relating to scanning laser ophthalmoscope
JP2017189219A (en) * 2016-04-11 2017-10-19 株式会社トプコン Ophthalmologic imaging apparatus
JP2021183214A (en) * 2020-05-08 2021-12-02 株式会社トプコン Ophthalmologic imaging apparatus

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