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RU2001111592A - DEVICE FOR MEASURING THE DETERMINING ABILITY OF VISION AT THE FREQUENCY OF LIGHT FLASHING - Google Patents

DEVICE FOR MEASURING THE DETERMINING ABILITY OF VISION AT THE FREQUENCY OF LIGHT FLASHING

Info

Publication number
RU2001111592A
RU2001111592A RU2001111592/14A RU2001111592A RU2001111592A RU 2001111592 A RU2001111592 A RU 2001111592A RU 2001111592/14 A RU2001111592/14 A RU 2001111592/14A RU 2001111592 A RU2001111592 A RU 2001111592A RU 2001111592 A RU2001111592 A RU 2001111592A
Authority
RU
Russia
Prior art keywords
output
frequency
input
vision
measuring
Prior art date
Application number
RU2001111592/14A
Other languages
Russian (ru)
Other versions
RU2204933C2 (en
Inventor
Валерий Витальевич Роженцов
Татьяна Александровна Лежнина
Original Assignee
Марийский государственный технический университет
Filing date
Publication date
Application filed by Марийский государственный технический университет filed Critical Марийский государственный технический университет
Priority to RU2001111592/14A priority Critical patent/RU2204933C2/en
Priority claimed from RU2001111592/14A external-priority patent/RU2204933C2/en
Publication of RU2001111592A publication Critical patent/RU2001111592A/en
Application granted granted Critical
Publication of RU2204933C2 publication Critical patent/RU2204933C2/en

Links

Claims (1)

Устройство для измерения разрешающей способности зрения по частоте световых мельканий, содержащее кнопку испытуемого, генератор линейно изменяющегося напряжения, преобразователь напряжение-частота, источник световых импульсов, вычислитель и блок индикаторов, причем выход генератора соединен с входом преобразователя напряжение-частота, выход которого соединен с входами источника световых импульсов и вычислителя, выход вычислителя соединен с входом блока индикаторов, отличающееся тем, что в него дополнительно введен формирователь импульса по спаду сигнала, вход которого соединен с выходом кнопки испытуемого, а выход - с входом вычислителя, выход кнопки испытуемого соединен также с входом генератора.A device for measuring the resolution of vision by the frequency of light flickering, containing a test button, a linearly varying voltage generator, a voltage-frequency converter, a light pulse source, a computer and an indicator block, the generator output being connected to the input of the voltage-frequency converter, the output of which is connected to the inputs a source of light pulses and a calculator, the output of the calculator is connected to the input of the indicator block, characterized in that the shaper is additionally introduced into it and the decay of the signal pulse having an input connected to the output of the test button, and an output - to the input of the calculator, the output of the test button is also connected to the generator input.
RU2001111592/14A 2001-04-26 2001-04-26 Device for measuring visual resolution based on light flicker frequency RU2204933C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2001111592/14A RU2204933C2 (en) 2001-04-26 2001-04-26 Device for measuring visual resolution based on light flicker frequency

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2001111592/14A RU2204933C2 (en) 2001-04-26 2001-04-26 Device for measuring visual resolution based on light flicker frequency

Publications (2)

Publication Number Publication Date
RU2001111592A true RU2001111592A (en) 2003-02-27
RU2204933C2 RU2204933C2 (en) 2003-05-27

Family

ID=20249100

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2001111592/14A RU2204933C2 (en) 2001-04-26 2001-04-26 Device for measuring visual resolution based on light flicker frequency

Country Status (1)

Country Link
RU (1) RU2204933C2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2237425C1 (en) * 2003-08-11 2004-10-10 Марийский государственный технический университет Device for measuring vision resolution from light flicker frequency
RU2451482C1 (en) * 2010-12-27 2012-05-27 Валерий Витальевич Роженцов Measurement unit for visual resolution as shown by flicker frequency

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH535039A (en) * 1971-03-05 1973-03-31 Biviator Sa Method for determining the flicker fusion frequency and apparatus for performing this method
JPS4928038A (en) * 1972-07-15 1974-03-13
WO1988010088A1 (en) * 1987-06-15 1988-12-29 John Charles Downing Light stimulator
SU1762897A2 (en) * 1990-12-29 1992-09-23 Марийский политехнический институт им.А.М.Горького Device for measurement of critical glimpses confluence frequencies

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