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Related Experiment Videos

A solid-state television pupillometer

T Watanabe, S Oono

    Vision Research
    |January 1, 1982
    PubMed
    Summary
    This summary is machine-generated.

    This study introduces a novel television pupillometer using MOS-type solid-state sensors, offering superior dynamic performance compared to traditional tube-based systems for accurate pupillary diameter measurement.

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    Area of Science:

    • Ophthalmology
    • Biomedical Engineering
    • Sensor Technology

    Background:

    • Conventional television pupillometers often utilize image-tube technology, such as silicon vidicons.
    • These systems may have limitations in dynamic performance for precise pupillary measurements.
    • There is a need for improved pupillometer designs offering enhanced accuracy and subject comfort.

    Purpose of the Study:

    • To describe the application of a Metal-Oxide-Semiconductor (MOS)-type solid-state imaging sensor in a television pupillometer.
    • To demonstrate the advantages of this new design, particularly its dynamic performance, over existing technologies.
    • To present design considerations and illumination methods for an improved pupillometer system.

    Main Methods:

    • Development of a television pupillometer incorporating an MOS-type solid-state imaging sensor.

    Related Experiment Videos

  • Comparison of the dynamic performance of the MOS-type pupillometer against conventional silicon vidicon systems.
  • Design and schematic presentation of the MOS-type TV camera and pupillometer for horizontal pupillary diameter detection.
  • Proposal of two infrared (IR) illumination techniques: aquatic filter and IR Light-Emitting Diodes (LEDs).

    • Main Results:

    • The MOS-type solid-state imaging sensor offers significant advantages in dynamic performance for television pupillometry.
    • The proposed design facilitates accurate detection of the horizontal pupillary diameter.
    • Infrared illumination methods using an aquatic filter or IR LEDs provide effective, heat-free illumination for subjects.

    Conclusions:

    • MOS-type solid-state imaging sensors represent a superior alternative to image-tube cameras for television pupillometry.
    • The developed pupillometer design enhances measurement accuracy and subject comfort through improved dynamics and illumination.
    • This technology holds promise for more effective and comfortable ophthalmic diagnostic tools.