JPWO2020008397A5 - - Google Patents

Claims (14)

An LED light source with solar characteristics that enhances cognitive performance and has a 90% balance of maximum and minimum values in the distribution of light energy within the range of 460-660 nm, which emits light having a wavelength of 380 nm-700 nm. comprising at least one white LED chip (1) emitting light, at least one monochromatic blue LED chip (2) emitting light with a wavelength of 470 nm to 480 nm, said LED chip being connected to a current source;
also comprising at least one monochromatic blue-green LED chip (3) emitting light having a wavelength between 490 nm and 500 nm, said white LED chip having a correlated color temperature of 3800-4200 K and a CRI (color rendering index) of 90-98; The blue LED chip (2) and the blue-green LED chip (3) each produce 3-7% of the total emitted power of the LED light source, or the luminous flux from the blue LED chip (2) is the total emitted power of the LED light source. 1-4% of the luminous flux and the luminous flux of the blue-green LED chip (3) is 4-7% of the total luminous flux of the LED light source, the white LED chip providing the main emitted power and the main luminous flux,
An LED light source characterized by: comprising at least one lime -colored LED chip (11) with emission within the green-yellow wavelength range of 500-650 nm, with a share of 6-9% in the total illuminating power or 10-15% of the total light output of said light source; 2. The LED light source of claim 1, comprising: LED light source according to claim 2, characterized in that said lime -colored LED chip (11) comprises a blue LED chip (2) covered with phosphor and excited in the range of 420±5 nm. LED light source according to claim 1, characterized in that the white LED chip (1) consists of a blue LED chip (2) covered with phosphor . 2. LED light source according to claim 1, characterized in that the power ratio of the blue LED chip (2) and the blue-green LED chip (3) is 1:1. LED light source according to claim 2, characterized in that the light output ratio of the blue LED chip (2), the blue-green LED chip (3) and the lime LED chip (11) is 1:2:3. . The total intensity of radiation of said LED light source is 4.5-7% from blue LED chip (2), 4.5-8% from blue-green LED chip (3), and lime LED chip (11). LED light source according to claim 2, characterized in that it is provided from 6-10% and 78-88% from the white LED chip (1). LED according to claim 1, characterized in that the total output of the blue LED chips (2) and the total output of the blue-green LED chips (3) each yield 5% of the total output of the white LED chips (1). light source. Characterized in that 4 white LED chips (1), 1 blue LED chip (2) and 1 blue-green LED chip (3) are placed at 1.25 cm of the printed circuit (4,7) A LED light source according to claim 1. Four white LED chips (1), two blue LED chips (2) and one blue-green LED chip (3) are placed 1.25 cm on the printed circuit (4, 7) and the blue LED chip (2 ) has half the power of the blue-green LED chip (3). Four white LED chips (1), one blue LED chip (2) and two blue-green LED chips (3) are placed 1.25 cm on the printed circuit (4,7) and the blue-green LED chips ( LED light source according to claim 1, characterized in that 3) has half the power of the blue LED chip (2). The light output of the blue LED chip (2) is in the amount of 27-32 lm/W, the light output of the blue-green LED chip (3) is in the amount of 63-66 lm/W, and the light of the lime LED chip (11) is LED light source according to claim 2, characterized in that the power is in the amount of 85-100 lm/W and the light output of the white LED chip (1) is in the amount of 70-90 lm/W. LED chips connected in two channels, wherein I channel contains 20-80 white LED chips (1), II channel contains 1-8 groups of blue-cyan-green LED chips, LED chips LED light source according to claim 2, characterized in that one group of includes one blue LED chip (2), one blue-green LED chip (3) and one lime LED chip (11). 14. The LED light source of claim 13, wherein the I channel includes 40-60 white LED chips and the II channel includes four groups of blue-cyan-green LED chips.