METHOD FOR DETERMINING HUMAN VISION SYSTEM PERSISTENCE TIME Russian patent published in 2005 - IPC

FIELD: medicine.

SUBSTANCE: method involves showing sequence of two luminous pulses of 10 ms duration separated by 150 ms long pause. The pulses are repeated in constant 1.5 s long interval. Pause duration between two luminous pulses is reduced at the first measurement stage at constant speed of 20ms/s until a testee fixes fusion of two luminous pulses into single one in subjective assessment mode. Pause duration between two luminous pulses is increased at the second measurement stage with given constant step of 0.4 ms until the testee identifies the moment of subjective perception of two luminous pulses separation. Pause duration is reduced in discrete mode with given constant 0.1 ms long step at the third measurement stage until the testee identifies the moment of subjective perception of two luminous pulses fusion into single one. Human vision system persistence time is determined to be equal to pause duration between two luminous pulses when subjective fusion into single pulse takes place at the third measurement stage.

EFFECT: high accuracy in determining human vision system persistence time.

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