JPS6480903A - Infrared optical element - Google Patents

Infrared optical element

Info

Publication number
JPS6480903A
JPS6480903A JP62238224A JP23822487A JPS6480903A JP S6480903 A JPS6480903 A JP S6480903A JP 62238224 A JP62238224 A JP 62238224A JP 23822487 A JP23822487 A JP 23822487A JP S6480903 A JPS6480903 A JP S6480903A
Authority
JP
Japan
Prior art keywords
film
optical element
hydrogen
hard carbon
4mum
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
JP62238224A
Other languages
Japanese (ja)
Inventor
Hiroyuki Sugimura
Makoto Itagaki
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.)
Nikon Corp
Original Assignee
Nikon 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 Nikon Corp filed Critical Nikon Corp
Priority to JP62238224A priority Critical patent/JPS6480903A/en
Publication of JPS6480903A publication Critical patent/JPS6480903A/en
Pending legal-status Critical Current

Links

Landscapes

  • Surface Treatment Of Optical Elements (AREA)
  • Optical Filters (AREA)

Abstract

PURPOSE:To obviate the generation of IR absorption between 3-4mum wavelengths by bringing the hydrogen and oxygen atoms taken into a hard carbon film into reaction to decrease the carbon-hydrogen bonds in the film. CONSTITUTION:This IR optical element 1 is formed by using the hard carbon film contg. oxygen. The carbon-hydrogen bonds in the hard carbon film are decreased by bringing the oxygen atoms into reaction with the hydrogen taken therein. IR absorption at 3-4mum wavelength is thereby substantially eliminated and the film lends itself to the antireflection film of a germanium substrate 2. The importance as the IR optical element is thus enhanced.
JP62238224A 1987-09-22 1987-09-22 Infrared optical element Pending JPS6480903A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62238224A JPS6480903A (en) 1987-09-22 1987-09-22 Infrared optical element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62238224A JPS6480903A (en) 1987-09-22 1987-09-22 Infrared optical element

Publications (1)

Publication Number Publication Date
JPS6480903A true JPS6480903A (en) 1989-03-27

Family

ID=17026991

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62238224A Pending JPS6480903A (en) 1987-09-22 1987-09-22 Infrared optical element

Country Status (1)

Country Link
JP (1) JPS6480903A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010032428A1 (en) 2008-09-17 2010-03-25 新日本製鐵株式会社 High-strength steel plate and process for producing same
WO2010055609A1 (en) 2008-11-11 2010-05-20 新日本製鐵株式会社 Thick steel sheet having high strength and method for producing same
JPWO2016052080A1 (en) * 2014-09-30 2017-06-15 富士フイルム株式会社 Antireflection film, chalcogenide glass lens, and imaging device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010032428A1 (en) 2008-09-17 2010-03-25 新日本製鐵株式会社 High-strength steel plate and process for producing same
WO2010055609A1 (en) 2008-11-11 2010-05-20 新日本製鐵株式会社 Thick steel sheet having high strength and method for producing same
JPWO2016052080A1 (en) * 2014-09-30 2017-06-15 富士フイルム株式会社 Antireflection film, chalcogenide glass lens, and imaging device
US9766375B2 (en) 2014-09-30 2017-09-19 Fujifilm Corporation Antireflection film, lens, and imaging device

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