EYE MONITOR
First Claim
Patent Images
1. An eye monitor for monitoring the size of a pupil of an eye of a monitored subject, the monitor comprising:
- an infra-red transmitter for transmitting an infrared radiation probe signal substantially upon an eye of a subject;
an infrared sensor for sensing variations in intensity of the infrared radiation reflected from an eye of a subject and outputting a sensor signal in accordance with sensed variations;
a processor arranged to receive said sensor signal and determine a location of a pupil of a subject dependent on the sensed variations; and
signal steering means arranged to scan a probe signal across an eye of a subject responsive to said processor to direct the probe signal at a pupil of the subject, wherein the processor is arranged to determine a size of the pupil dependent on the sensed variations.
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Accused Products
Abstract
An eye monitor is disclosed for monitoring the size of a pupil of a monitored subject. The eye monitor includes a tracking device for tracking movement of the user'"'"'s pupil and a monitoring device for monitoring the size of the user'"'"'s pupil. The eye monitor provides for a continuous and real time analysis of the subject'"'"'s eye and in particular the pupil of the eye, to determine whether the subject has been exposed to harmful chemicals and without requiring the subject to actively participate in the monitoring.
18 Citations
18 Claims
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1. An eye monitor for monitoring the size of a pupil of an eye of a monitored subject, the monitor comprising:
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an infra-red transmitter for transmitting an infrared radiation probe signal substantially upon an eye of a subject; an infrared sensor for sensing variations in intensity of the infrared radiation reflected from an eye of a subject and outputting a sensor signal in accordance with sensed variations; a processor arranged to receive said sensor signal and determine a location of a pupil of a subject dependent on the sensed variations; and signal steering means arranged to scan a probe signal across an eye of a subject responsive to said processor to direct the probe signal at a pupil of the subject, wherein the processor is arranged to determine a size of the pupil dependent on the sensed variations. - View Dependent Claims (3, 4, 5, 6, 7, 8, 11, 12, 13)
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2. (canceled)
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9-10. -10. (canceled)
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14. A method for monitoring the size of a pupil of an eye of a monitored subject, the method comprising:
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transmitting an infrared radiation probe signal substantially upon the eye of the subject; sensing variations in intensity of the infrared radiation reflected from the eye of the subject and outputting a sensor signal in accordance with the sensed variations; determining a location of a pupil of a subject dependent on the sensed variations; scanning the probe signal across the eye of the subject responsive to the determined location of the pupil of the subject; and determining the size of the pupil dependent on the sensed variations. - View Dependent Claims (15, 16, 17)
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18-19. -19. (canceled)
Specification