METHOD FOR ADJUSTING COLOR TEMPERATURE OF SURFACE LIGHT-EMITTING ILLUMINATION DEVICE AND PRINTING DEVICE FOR PRODUCING SURFACE LIGHT-EMITTING ILLUMINATION DEVICE
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United States of America Patent
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Issued Date -
Sep 3, 2015
app pub date -
Sep 9, 2013
filing date -
Sep 20, 2012
priority date (Note) -
Abandoned
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Abstract
A surface-emitting illuminating device includes a light guide plate, a light source for emitting light to the interior of the light guide plate, and a light reflection plate and/or a light diffusion plate. The color temperature of the light-emitting face of the prepared surface-emitting illuminating device is measured. When the measured color temperature is not a required color temperature, ink for coloring the light reflection plate and/or light diffuser plate is selected. The selected ink is used to subject the light reflection plate and/or light diffuser plate to a coloring printing by an inkjet printer. The color temperature of the light-emitting face of the surface-emitting illuminating device is measured. Until the measured color temperature of the light-emitting face of the surface-emitting illuminating device is within an allowable range, the color printing of the light reflection plate and/or light diffuser plate is repeatedly corrected.
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