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)
  • Optical Filters (AREA)
  • Compositions Of Oxide Ceramics (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)

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
GB1489804A (en) * 1974-04-05 1977-10-26 Environmental Res & Tech Light equalizer method and making same and optical system using same
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
JP6717930B2 (ja) * 2016-03-28 2020-07-08 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

Also Published As

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

Similar Documents

Publication Publication Date Title
FR1143312A (fr) Particules en verre d'indice de réfraction élevé
GB911754A (en) Ophtalmometer
ES8205467A1 (es) Perfeccionamientos introducidos en la fabricacion de lentes para reducir la incomodidad.procedente de la afacia y cier- tas enfermedades del ojo
JPS54161620A (en) High refractive index glass having limited specific gravity for long and short distance glass lenses
GB1435868A (en) Fluorophosphate glass
GB1320357A (en) Optical filters
JPS55144448A (en) Fluorophosphate optical glass
GB1261786A (en) Fluorophosphate glasses
GB1374563A (en) Optical glass and process for its production
GB725206A (en) Optical glass
GB765244A (en) Improvements in or relating to the manufacture of mineral fibres or threads which are stable to weathering, decay, efflorescence or disintegration
US3887485A (en) Solid optical filter having selective wavelength permeability
JPS5547243A (en) Fluorophosphate type laser glass
GB1472673A (en) Fast-fading index-corrected photochromic glass compositions
EP0560555A3 (enrdf_load_stackoverflow)
FR2227236A1 (en) High-dispersion optical glass - based on barium fluorophosphate and fluorides of aluminium, magnesium, calcium and strontium
GB1233512A (enrdf_load_stackoverflow)
GB1289673A (enrdf_load_stackoverflow)
GB1260778A (en) Improvements in or relating to optical glasses with a high refractive index and a strong dispersion
GB1224169A (en) Improvements in or relating to thorium-free optical glass
JPS54161619A (en) Light weight* high refractive index glass for glass lense
JPS5537431A (en) Optical glass for light pass
GB1261691A (en) Glass
GB1235206A (en) Improvements in or relating to glass
GB1302526A (enrdf_load_stackoverflow)

Legal Events

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