SU814055A1 - METHOD FOR DETERMINING THE TIME OF EMITTING RECOMBINATION OF A LED - Google Patents

METHOD FOR DETERMINING THE TIME OF EMITTING RECOMBINATION OF A LED

Info

Publication number
SU814055A1
SU814055A1 SU2694615/25A SU2694615A SU814055A1 SU 814055 A1 SU814055 A1 SU 814055A1 SU 2694615/25 A SU2694615/25 A SU 2694615/25A SU 2694615 A SU2694615 A SU 2694615A SU 814055 A1 SU814055 A1 SU 814055A1
Authority
SU
USSR - Soviet Union
Prior art keywords
led
current
determining
radiative recombination
recombination time
Prior art date
Application number
SU2694615/25A
Other languages
Russian (ru)
Inventor
К.Г. Булатецкий
Original Assignee
Институт Физики Полупроводников Со Ан Ссср
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 Институт Физики Полупроводников Со Ан Ссср filed Critical Институт Физики Полупроводников Со Ан Ссср
Priority to SU2694615/25A priority Critical patent/SU814055A1/en
Application granted granted Critical
Publication of SU814055A1 publication Critical patent/SU814055A1/en

Links

Landscapes

  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Abstract

Способ определения времени излучательной рекомбинации светодиода с одновременным измерением интенсивности излучения, включающий возбуждение светодиода и проекцию выбранного участка излучающей поверхности на фотоприемник, отличающийся тем, что, с целью расширения диапазона в области малых времен релаксации, световой поток, идущий от светодиода, перекрывают и измеряют высокочастотный ток, проходящий через светодиод, затем, постепенно увеличивая световой поток, измеряют минимальное значение этого тока и по отношению минимального тока к первоначальному току светодиода находят время излучательной рекомбинации светодиода по формулеarctg2πωτ = arcsinN,где ω - частота возбуждения светодиода;N - отношение показаний измерительного прибора;τ - время излучательной рекомбинации светодиода.The method of determining the radiative recombination time of the LED with simultaneous measurement of the radiation intensity, including the excitation of the LED and the projection of a selected portion of the radiating surface on the photodetector, characterized in that, in order to extend the range in the region of short relaxation times, the luminous flux coming from the LED overlaps and measures the high-frequency the current passing through the LED, then gradually increasing the luminous flux, measure the minimum value of this current and the ratio of the minimum current the initial LED current is found by the radiative recombination time of the LED according to the formula arctg2πωτ = arcsinN, where ω is the excitation frequency of the LED, N is the ratio of the readings of the measuring device, and τ is the radiative recombination time of the LED.

SU2694615/25A 1978-12-11 1978-12-11 METHOD FOR DETERMINING THE TIME OF EMITTING RECOMBINATION OF A LED SU814055A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU2694615/25A SU814055A1 (en) 1978-12-11 1978-12-11 METHOD FOR DETERMINING THE TIME OF EMITTING RECOMBINATION OF A LED

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU2694615/25A SU814055A1 (en) 1978-12-11 1978-12-11 METHOD FOR DETERMINING THE TIME OF EMITTING RECOMBINATION OF A LED

Publications (1)

Publication Number Publication Date
SU814055A1 true SU814055A1 (en) 2000-05-20

Family

ID=60523553

Family Applications (1)

Application Number Title Priority Date Filing Date
SU2694615/25A SU814055A1 (en) 1978-12-11 1978-12-11 METHOD FOR DETERMINING THE TIME OF EMITTING RECOMBINATION OF A LED

Country Status (1)

Country Link
SU (1) SU814055A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2523731C1 (en) * 2013-02-05 2014-07-20 Федеральное государственное бюджетное учреждение науки Институт радиотехники и электроники им. В.А. Котельникова Российской академии наук Method and apparatus for measuring transient thermal characteristics of light-emitting diodes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2523731C1 (en) * 2013-02-05 2014-07-20 Федеральное государственное бюджетное учреждение науки Институт радиотехники и электроники им. В.А. Котельникова Российской академии наук Method and apparatus for measuring transient thermal characteristics of light-emitting diodes

Similar Documents

Publication Publication Date Title
JPS57166529A (en) Method and device for measuring temperature
SU814055A1 (en) METHOD FOR DETERMINING THE TIME OF EMITTING RECOMBINATION OF A LED
JPS5478156A (en) Detector of break point of optical fibers
JPS5323678A (en) Phot ometer
JPS6469925A (en) Optical fiber type temperature distribution measuring apparatus
JPS54109863A (en) Range measuring device
JPS52117689A (en) Spectroscopic fluorescent photometer
GB540068A (en) Improved means for exploring local intensities in high-frequency electromagnetic fields
FR2341847A1 (en) DEVICE FOR MEASURING THE TEMPERATURE OF ROOMS TO BE TREATED BY LUMINESCENT DISCHARGE OF HIGH INTENSITY
SU477313A1 (en) The method of measuring the blackness of the radiators, made in the form of a cavity
JPS6224125A (en) Optical semiconductor measuring apparatus
SU540228A1 (en) Relative permeability measurement method
JPS5443083A (en) Light intensity measuring instrument
JPS57108702A (en) Displacement meter
JPS5328447A (en) Measurement of length of optical fiber and device therefor
JPS56129322A (en) Detection of microwave leakage for microwave plasma device
SU1364913A1 (en) Method of determining temperature
JPS5364981A (en) Apparatus for inspecting vacuum degree of fluorescent lamp
SU515125A1 (en) Device for modeling field sources
JPS5320349A (en) Measuring method for wave length dispersion of photo-fiber
JPS5417872A (en) Depth measuring method of fine patterns
JPS573018A (en) Measurement of oscillation wavelength of narrow band oscillation wavelength light source
SU1189191A1 (en) The method of measuring the color temperature
SU103606A1 (en) Photo-semiconductor amplifier-converter
SU402816A1 (en) METHOD OF MEASURING INFRANIZED AND LOW