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C Daylight Glasses

$42.00

SKU

GU-15115

Note: To avoid light damage to these glasses, store in the provided UV proof bag.

These glasses have special filters that transform normal incandescent light to “Illuminant C” type illumination, the proper light setting for the administration of color tests.

Video Demonstration:

Daylight Glasses

Details

Features:

Specially designed blue gel material to transform household incandescent light into accurate Illuminant C (Color temperature: 6400-7000 degrees K depending on bulb Wattage).
"C" Daylight Glasses are worn during color vision testing, providing a "subtractive" color temperature correction to the CIE Illuminant C standard.
When used in conjunction with typical clinical color vision tests such as the D-15, Ishihara, City University, etc. more accurate test results are possible.
For years the so-called "type C" or "daylight" illumination for color vision testing has been available in the form of the Macbeth Easel Lamp. Modern substitutes are relatively expensive and may provide only a limited field of illumination.
They also limit the portability of accurate color testing from lane to lane, forcing the practitioner to move the patient to the test light.
"C" Daylight Glasses are worn by the patient and can be used with any ordinary 60, 75 or 100 W soft white or standard bulb.
A pair can be kept with each test in the office, thus making color vision testing a convenient process anywhere incandescent illumination is available.