FR2358667A1 - DIELECTRIC INTERFERENCE FILTER - Google Patents

DIELECTRIC INTERFERENCE FILTER

Info

Publication number
FR2358667A1
FR2358667A1 FR7721856A FR7721856A FR2358667A1 FR 2358667 A1 FR2358667 A1 FR 2358667A1 FR 7721856 A FR7721856 A FR 7721856A FR 7721856 A FR7721856 A FR 7721856A FR 2358667 A1 FR2358667 A1 FR 2358667A1
Authority
FR
France
Prior art keywords
interference filter
dielectric interference
optical instrument
filter
layers
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
FR7721856A
Other languages
French (fr)
Other versions
FR2358667B1 (en
Inventor
Gunther Ranninger
Franz Twaroch
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.)
C Reichert Optische Werke AG
Original Assignee
C Reichert Optische Werke AG
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 C Reichert Optische Werke AG filed Critical C Reichert Optische Werke AG
Publication of FR2358667A1 publication Critical patent/FR2358667A1/en
Application granted granted Critical
Publication of FR2358667B1 publication Critical patent/FR2358667B1/fr
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
    • G02B5/28—Interference filters
    • G02B5/285—Interference filters comprising deposited thin solid films

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Filters (AREA)
  • Microscoopes, Condenser (AREA)

Abstract

La présente invention concerne un filtre d'interférence pour un instrument optique. Le filtre comprend une pluralité de couches alternantes d'indices de réfraction élevés et faibles et l'épaisseur des couches augmentant vers le centre; le filtre d'interférence peut alors compenser les erreurs dans la distribution d'énergie spectrale produites par le système optique de l'instrument optique. L'invention est particulièrement applicable aux microscopes.The present invention relates to an interference filter for an optical instrument. The filter comprises a plurality of alternating layers of high and low refractive indices and the thickness of the layers increasing towards the center; the interference filter can then compensate for errors in the spectral energy distribution produced by the optical system of the optical instrument. The invention is particularly applicable to microscopes.

FR7721856A 1976-07-17 1977-07-18 DIELECTRIC INTERFERENCE FILTER Granted FR2358667A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762632341 DE2632341A1 (en) 1976-07-17 1976-07-17 OPTICAL DEVICE

Publications (2)

Publication Number Publication Date
FR2358667A1 true FR2358667A1 (en) 1978-02-10
FR2358667B1 FR2358667B1 (en) 1982-02-05

Family

ID=5983337

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7721856A Granted FR2358667A1 (en) 1976-07-17 1977-07-18 DIELECTRIC INTERFERENCE FILTER

Country Status (4)

Country Link
DE (1) DE2632341A1 (en)
FR (1) FR2358667A1 (en)
GB (1) GB1589891A (en)
HK (1) HK97484A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994007159A1 (en) * 1992-09-18 1994-03-31 Leica Mikroskopie Und Systeme Gmbh Colour cast compensating filter for optical appliances with viewing and photographic beam paths

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5179318A (en) * 1989-07-05 1993-01-12 Nippon Sheet Glass Co., Ltd. Cathode-ray tube with interference filter

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3588245A (en) * 1968-10-01 1971-06-28 Bell Telephone Labor Inc Adjustable compensation in optical systems
FR2108223A1 (en) * 1970-09-18 1972-05-19 Balzers Patent Beteilig Ag
US3737210A (en) * 1972-03-31 1973-06-05 Bausch & Lomb Multilayer filter based on substitution of herpin equivalent layers in a antireflection coating formula
US3922068A (en) * 1973-06-18 1975-11-25 Minolta Camera Kk Multi-layer anti-reflection coating with high and low index material

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3588245A (en) * 1968-10-01 1971-06-28 Bell Telephone Labor Inc Adjustable compensation in optical systems
FR2108223A1 (en) * 1970-09-18 1972-05-19 Balzers Patent Beteilig Ag
US3737210A (en) * 1972-03-31 1973-06-05 Bausch & Lomb Multilayer filter based on substitution of herpin equivalent layers in a antireflection coating formula
US3922068A (en) * 1973-06-18 1975-11-25 Minolta Camera Kk Multi-layer anti-reflection coating with high and low index material

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994007159A1 (en) * 1992-09-18 1994-03-31 Leica Mikroskopie Und Systeme Gmbh Colour cast compensating filter for optical appliances with viewing and photographic beam paths
US5625492A (en) * 1992-09-18 1997-04-29 Leica Mikroskopie Und Systeme Gmbh Color compensation filter

Also Published As

Publication number Publication date
HK97484A (en) 1984-12-21
DE2632341A1 (en) 1978-01-26
FR2358667B1 (en) 1982-02-05
GB1589891A (en) 1981-05-20

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Legal Events

Date Code Title Description
ST Notification of lapse