GB1425971A - Dual beam optical system - Google Patents

Dual beam optical system

Info

Publication number
GB1425971A
GB1425971A GB1968373A GB1968373A GB1425971A GB 1425971 A GB1425971 A GB 1425971A GB 1968373 A GB1968373 A GB 1968373A GB 1968373 A GB1968373 A GB 1968373A GB 1425971 A GB1425971 A GB 1425971A
Authority
GB
United Kingdom
Prior art keywords
light
transmits
green light
absorbs
filter element
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
GB1968373A
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.)
Instrumentation Specialties Co
Original Assignee
Instrumentation Specialties Co
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 Instrumentation Specialties Co filed Critical Instrumentation Specialties Co
Publication of GB1425971A publication Critical patent/GB1425971A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/255—Details, e.g. use of specially adapted sources, lighting or optical systems

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
  • Luminescent Compositions (AREA)
GB1968373A 1972-06-05 1973-04-25 Dual beam optical system Expired GB1425971A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US25986872A 1972-06-05 1972-06-05

Publications (1)

Publication Number Publication Date
GB1425971A true GB1425971A (en) 1976-02-25

Family

ID=22986757

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1968373A Expired GB1425971A (en) 1972-06-05 1973-04-25 Dual beam optical system

Country Status (5)

Country Link
US (1) US3783276A (enExample)
JP (1) JPS5313137B2 (enExample)
CA (1) CA996530A (enExample)
FR (1) FR2188184B1 (enExample)
GB (1) GB1425971A (enExample)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3989948A (en) * 1975-06-09 1976-11-02 Instrumentation Specialties Company Dual beam optical system
US4187013A (en) * 1975-10-06 1980-02-05 Hitachi, Ltd. Phosphor screen exposure apparatus
DE3007982C2 (de) * 1980-03-01 1983-09-29 Eura-Dental Gmbh, 8070 Ingolstadt Vorrichtung zum Erwärmen medizinisch-technischer Werkzeuge
US4587463A (en) * 1983-09-22 1986-05-06 Isco, Inc. Absorbance monitor
US4575424A (en) * 1984-03-01 1986-03-11 Isco, Inc. Chromatographic flow cell and method of making it
DE69524405T2 (de) * 1995-09-06 2002-05-23 Agilent Technologies Deutschland Gmbh Photometrische Durchflussvorrichtung für kleine Probenvolumina
US5963333A (en) * 1996-09-12 1999-10-05 Color Savvy Systems Limited Color sensor
US7763869B2 (en) * 2007-03-23 2010-07-27 Asm Japan K.K. UV light irradiating apparatus with liquid filter
CN107748138B (zh) * 2017-12-05 2023-11-28 山东交通学院 基于滤光液原理的微藻活性检测装置与方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1118868A (en) * 1913-09-08 1914-11-24 Frederich Kerschbaum Metallic-vapor lamp.
US2411672A (en) * 1941-09-02 1946-11-26 Paper Chemistry Inst Electrical control system
US2367388A (en) * 1942-10-19 1945-01-16 Arthur J Davis Illuminated aircraft
US2551542A (en) * 1948-11-10 1951-05-01 Charles R Marsh Fluorophotometer
US2926253A (en) * 1954-12-22 1960-02-23 Distillers Co Yeast Ltd Radiation analysis

Also Published As

Publication number Publication date
DE2365520A1 (de) 1975-08-14
DE2328193B2 (de) 1975-11-06
CA996530A (en) 1976-09-07
JPS5313137B2 (enExample) 1978-05-08
US3783276A (en) 1974-01-01
FR2188184A1 (enExample) 1974-01-18
FR2188184B1 (enExample) 1976-09-17
JPS4957881A (enExample) 1974-06-05
DE2365520B2 (de) 1976-02-05
DE2328193A1 (de) 1974-01-03

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years

Effective date: 19930424