Patent ID: 9062851
Filing Date: 2015-06-23
Classification: C03C,C09K,F21K,F21V,F21Y,H01L

Abstract:
1. An LED lamp comprising: an LED light source including a blue LED with a main emission peak in a wavelength band of 440 nm to 460 nm, a green/yellow phosphor that is excited by light emitted by the blue LED, and a red phosphor that is excited by light emitted by at least one of the blue LED and the green/yellow phosphor; and a filter that reduces spectral radiation intensity of at least a portion of a wavelength range from 570 nm to 590 nm among light emitted by the LED light source, wherein a color of light transmitted through the filter is light bulb color as specified by Japanese Industrial Standard Z9112, and wherein a maximum peak wavelength of mixed light before transmission through the filter, the mixed light being a mix of light emitted by the green/yellow phosphor and light emitted by the red phosphor, is in a wavelength range from 580 nm to 630 nm, and a full width at half maximum for the maximum peak wavelength is in a range of 120 nm to 175 nm.