GB2380790B - Variation of LED optical power and photosynthetic fluorometers - Google Patents

Variation of LED optical power and photosynthetic fluorometers

Info

Publication number
GB2380790B
GB2380790B GB0116779A GB0116779A GB2380790B GB 2380790 B GB2380790 B GB 2380790B GB 0116779 A GB0116779 A GB 0116779A GB 0116779 A GB0116779 A GB 0116779A GB 2380790 B GB2380790 B GB 2380790B
Authority
GB
United Kingdom
Prior art keywords
fluorometers
photosynthetic
variation
optical power
led optical
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 - Fee Related
Application number
GB0116779A
Other versions
GB2380790A (en
GB0116779D0 (en
GB2380790A9 (en
Inventor
Neil Reeves Baker
Kevin Mark Oxborough
John Keith Bartington
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.)
University of Essex Enterprises Ltd
Original Assignee
University of Essex Enterprises Ltd
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 University of Essex Enterprises Ltd filed Critical University of Essex Enterprises Ltd
Priority to GB0116779A priority Critical patent/GB2380790B/en
Publication of GB0116779D0 publication Critical patent/GB0116779D0/en
Publication of GB2380790A publication Critical patent/GB2380790A/en
Publication of GB2380790A9 publication Critical patent/GB2380790A9/en
Application granted granted Critical
Publication of GB2380790B publication Critical patent/GB2380790B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/64—Fluorescence; Phosphorescence
    • G01N21/6486—Measuring fluorescence of biological material, e.g. DNA, RNA, cells
    • 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
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/64—Fluorescence; Phosphorescence
    • G01N21/645—Specially adapted constructive features of fluorimeters
    • G01N21/6456—Spatial resolved fluorescence measurements; Imaging
GB0116779A 2001-07-10 2001-07-10 Variation of LED optical power and photosynthetic fluorometers Expired - Fee Related GB2380790B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0116779A GB2380790B (en) 2001-07-10 2001-07-10 Variation of LED optical power and photosynthetic fluorometers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0116779A GB2380790B (en) 2001-07-10 2001-07-10 Variation of LED optical power and photosynthetic fluorometers

Publications (4)

Publication Number Publication Date
GB0116779D0 GB0116779D0 (en) 2001-08-29
GB2380790A GB2380790A (en) 2003-04-16
GB2380790A9 GB2380790A9 (en) 2003-04-29
GB2380790B true GB2380790B (en) 2004-12-22

Family

ID=9918195

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0116779A Expired - Fee Related GB2380790B (en) 2001-07-10 2001-07-10 Variation of LED optical power and photosynthetic fluorometers

Country Status (1)

Country Link
GB (1) GB2380790B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4576107B2 (en) * 2003-10-27 2010-11-04 Ｈｏｙａ株式会社 Lighting control device
GB2496657A (en) * 2011-11-18 2013-05-22 Crowcon Detection Instr Ltd Analyte safety monitor with reduced photo bleaching effect
DE102022203730A1 (en) * 2022-04-13 2023-10-19 Robert Bosch Gesellschaft mit beschränkter Haftung Device and method for providing a control signal for pulse width modulation, power converter and electrical drive system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5313188A (en) * 1989-10-11 1994-05-17 Bell Sports, Inc. Battery-powered flashing superluminescent light emitting diode safety warning light
EP1113708A2 (en) * 1999-12-23 2001-07-04 STMicroelectronics, Inc. Led driver circuit and method
WO2002006795A2 (en) * 2000-07-14 2002-01-24 Her Majesty The Queen In Right Of Canada As Represented By The Minister Of Agriculture And Agri-Food Canada A method and apparatus for monitoring a condition in chlorophyll containing matter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5313188A (en) * 1989-10-11 1994-05-17 Bell Sports, Inc. Battery-powered flashing superluminescent light emitting diode safety warning light
EP1113708A2 (en) * 1999-12-23 2001-07-04 STMicroelectronics, Inc. Led driver circuit and method
WO2002006795A2 (en) * 2000-07-14 2002-01-24 Her Majesty The Queen In Right Of Canada As Represented By The Minister Of Agriculture And Agri-Food Canada A method and apparatus for monitoring a condition in chlorophyll containing matter

Also Published As

Publication number Publication date
GB2380790A (en) 2003-04-16
GB0116779D0 (en) 2001-08-29
GB2380790A9 (en) 2003-04-29

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Legal Events

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

Effective date: 20170710