LIGHT-EMITTING DEVICE, ILLUMINATION DEVICE, IMAGE DISPLAY DEVICE, AND INDICATOR LAMP FOR VEHICLE
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United States of America
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Apr 3, 2025
app pub date -
Dec 6, 2024
filing date -
Dec 6, 2024
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Abstract
The present invention relates to a light-emitting device having at least one or more light emission colors having a specific correlated color temperature, which includes a light-emitting element including a first luminescent material and a second luminescent material, in which the second luminescent material contains at least one or more phosphors and one or more other phosphors each having an emission peak in a different wavelength region; in at least one of the light emission colors having the specific correlated color temperature, when an emission intensity at a wavelength λ1 where an emission intensity of an emission spectrum is maximum at 600 nm or more and 700 nm or less is A, and an emission intensity at 700 nm is C, C/A is 0.25 or less; and the one or more other phosphors include at least a phosphor containing a crystal phase having a specified composition.
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