GB1320357A - Optical filters - Google Patents

Optical filters

Info

Publication number
GB1320357A
GB1320357A GB5200670A GB5200670A GB1320357A GB 1320357 A GB1320357 A GB 1320357A GB 5200670 A GB5200670 A GB 5200670A GB 5200670 A GB5200670 A GB 5200670A GB 1320357 A GB1320357 A GB 1320357A
Authority
GB
United Kingdom
Prior art keywords
matrix
fluoride
powders
examples
change
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
Application number
GB5200670A
Other languages
English (en)
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.)
Carl Zeiss AG
Original Assignee
Carl Zeiss 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 Carl Zeiss AG filed Critical Carl Zeiss AG
Publication of GB1320357A publication Critical patent/GB1320357A/en
Expired 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
    • G02B5/206—Filters comprising particles embedded in a solid matrix
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
    • F02D41/1454—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio
    • F02D41/1456—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio with sensor output signal being linear or quasi-linear with the concentration of oxygen

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Glass Compositions (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Optical Filters (AREA)
GB5200670A 1969-10-31 1970-11-02 Optical filters Expired GB1320357A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1954802 1969-10-31

Publications (1)

Publication Number Publication Date
GB1320357A true GB1320357A (en) 1973-06-13

Family

ID=5749767

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5200670A Expired GB1320357A (en) 1969-10-31 1970-11-02 Optical filters

Country Status (5)

Country Link
JP (1) JPS5010742B1 (enrdf_load_stackoverflow)
DE (1) DE1954802B1 (enrdf_load_stackoverflow)
FR (1) FR2065622B1 (enrdf_load_stackoverflow)
GB (1) GB1320357A (enrdf_load_stackoverflow)
NL (1) NL144063B (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20240118470A1 (en) * 2021-02-19 2024-04-11 Panasonic Intellectual Property Management Co., Ltd. Optical filter, ir sensor, and light emitting device

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3903413A (en) * 1973-12-06 1975-09-02 Polaroid Corp Glass-filled polymeric filter element
GB1489805A (en) * 1974-04-05 1977-10-26 Environmental Res & Tech Light equalizer
DE2609194A1 (de) * 1976-03-05 1977-09-15 Mutzhas Maximilian F Strahlenschutzfilter zur direktpigmentierung bei sonnenbestrahlung
DE3327748A1 (de) * 1983-08-01 1985-02-14 Institut fiziki Akademii Nauk Belorusskoj SSR, Minsk Verfahren zum herstellen eines dispersionsfilters fuer den infraroten spektralbereich
EP0172951A3 (en) * 1984-08-23 1986-07-30 Barnes Engineering Company Narrow-band optical absorption filter
DE3532780A1 (de) * 1985-09-13 1987-03-26 Maximilian F Prof Dr I Mutzhas Strahlenschutzfilter
WO2017169506A1 (ja) * 2016-03-28 2017-10-05 富士フイルム株式会社 遠赤外線透過性組成物、形成体、積層体、遠赤外線透過フィルタ、固体撮像素子および赤外線カメラ

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3312759A (en) * 1963-09-23 1967-04-04 Bausch & Lomb Method of making optical elements from ba or mg fluoride containing boron nitride

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20240118470A1 (en) * 2021-02-19 2024-04-11 Panasonic Intellectual Property Management Co., Ltd. Optical filter, ir sensor, and light emitting device

Also Published As

Publication number Publication date
NL144063B (nl) 1974-11-15
JPS5010742B1 (enrdf_load_stackoverflow) 1975-04-24
DE1954802B1 (de) 1971-03-04
FR2065622A1 (enrdf_load_stackoverflow) 1971-07-30
NL7015848A (enrdf_load_stackoverflow) 1971-05-04
FR2065622B1 (enrdf_load_stackoverflow) 1974-06-21

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee