JPS57190911A - Refractive index distribution type lens - Google Patents

Refractive index distribution type lens

Info

Publication number
JPS57190911A
JPS57190911A JP7566081A JP7566081A JPS57190911A JP S57190911 A JPS57190911 A JP S57190911A JP 7566081 A JP7566081 A JP 7566081A JP 7566081 A JP7566081 A JP 7566081A JP S57190911 A JPS57190911 A JP S57190911A
Authority
JP
Japan
Prior art keywords
refractive index
varies
lens
proportional
distribution type
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
JP7566081A
Other languages
Japanese (ja)
Inventor
Kenichi Yoshida
Yoshikazu Nishiwaki
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP7566081A priority Critical patent/JPS57190911A/en
Publication of JPS57190911A publication Critical patent/JPS57190911A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C23/00—Other surface treatment of glass not in the form of fibres or filaments
    • C03C23/0005—Other surface treatment of glass not in the form of fibres or filaments by irradiation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Optical Integrated Circuits (AREA)

Abstract

PURPOSE:To obtain a refractive index type distribution type lens which can be miniaturized and has the sufficient image forming performance, by irradiating an electromagnetic wave beam which varies its intensity distribution in proportional to a square of the distance from the center axis to a material which varies its refractive index in response to the electromagnetic energy quantity. CONSTITUTION:A lens material 2 such as the chalcogenide glass, or gerumanium arsenic, etc. is coated in the form of a thin film on a transparent substrate 1. Then an electromagnetic beam 3 which varies its intensity distribution in proportional to a square of the distance from the center axis is irradiated on the material 2. Thus a lens which varies it refractive index in proportional to a square of the distance from the center axis is obtained. As a result, a refractive index distribution type lens which can be miniaturized and has the sufficient image resolving performance can be produced.
JP7566081A 1981-05-21 1981-05-21 Refractive index distribution type lens Pending JPS57190911A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7566081A JPS57190911A (en) 1981-05-21 1981-05-21 Refractive index distribution type lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7566081A JPS57190911A (en) 1981-05-21 1981-05-21 Refractive index distribution type lens

Publications (1)

Publication Number Publication Date
JPS57190911A true JPS57190911A (en) 1982-11-24

Family

ID=13582599

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7566081A Pending JPS57190911A (en) 1981-05-21 1981-05-21 Refractive index distribution type lens

Country Status (1)

Country Link
JP (1) JPS57190911A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996041775A1 (en) * 1995-06-12 1996-12-27 The Secretary Of State For Defence Microstructures in chalcogen-containing glasses

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996041775A1 (en) * 1995-06-12 1996-12-27 The Secretary Of State For Defence Microstructures in chalcogen-containing glasses

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