JPH04242B2 - - Google Patents

Info

Publication number
JPH04242B2
JPH04242B2 JP58126576A JP12657683A JPH04242B2 JP H04242 B2 JPH04242 B2 JP H04242B2 JP 58126576 A JP58126576 A JP 58126576A JP 12657683 A JP12657683 A JP 12657683A JP H04242 B2 JPH04242 B2 JP H04242B2
Authority
JP
Japan
Prior art keywords
light
starlight
wavelength range
field
dark
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.)
Expired - Lifetime
Application number
JP58126576A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6017702A (ja
Inventor
Kyoshi Nagai
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP12657683A priority Critical patent/JPS6017702A/ja
Priority to US06/629,317 priority patent/US4616902A/en
Priority to DE8484304773T priority patent/DE3485887T2/de
Priority to EP84304773A priority patent/EP0131473B1/en
Publication of JPS6017702A publication Critical patent/JPS6017702A/ja
Publication of JPH04242B2 publication Critical patent/JPH04242B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/22—Absorbing filters
    • G02B5/223—Absorbing filters containing organic substances, e.g. dyes, inks or pigments
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/208—Filters for use with infrared or ultraviolet radiation, e.g. for separating visible light from infrared and/or ultraviolet radiation
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/22—Absorbing filters
    • G02B5/226—Glass filters

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Optical Filters (AREA)
JP12657683A 1983-07-12 1983-07-12 暗視野監視システム用光学フィルタ Granted JPS6017702A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP12657683A JPS6017702A (ja) 1983-07-12 1983-07-12 暗視野監視システム用光学フィルタ
US06/629,317 US4616902A (en) 1983-07-12 1984-07-10 Composite filter, observation system and filamentary display device
DE8484304773T DE3485887T2 (de) 1983-07-12 1984-07-12 Verbundfilter und verwendung eines solchen filters.
EP84304773A EP0131473B1 (en) 1983-07-12 1984-07-12 Composite filter and the use of such a filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12657683A JPS6017702A (ja) 1983-07-12 1983-07-12 暗視野監視システム用光学フィルタ

Publications (2)

Publication Number Publication Date
JPS6017702A JPS6017702A (ja) 1985-01-29
JPH04242B2 true JPH04242B2 (cs) 1992-01-06

Family

ID=14938583

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12657683A Granted JPS6017702A (ja) 1983-07-12 1983-07-12 暗視野監視システム用光学フィルタ

Country Status (1)

Country Link
JP (1) JPS6017702A (cs)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0515057Y2 (cs) * 1985-08-27 1993-04-21
JPS62157003A (ja) * 1985-12-28 1987-07-13 Kiyoshi Nagai 複合フイルタ
JPH0594801U (ja) * 1991-11-08 1993-12-24 株式会社アドバンテスト 複合型光学フィルタ
JP2006078519A (ja) * 2004-09-07 2006-03-23 Canon Electronics Inc Ｎｄフィルタ、光量絞り装置、該光量絞り装置を有するカメラ

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4830131A (cs) * 1971-08-20 1973-04-20
JPS59189688A (ja) * 1983-04-13 1984-10-27 Hitachi Ltd 磁気抵抗素子

Also Published As

Publication number Publication date
JPS6017702A (ja) 1985-01-29

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