Lamp source for improving color rendering index and method for changing color temperature
A color rendering index and light source technology, which is applied in the field of light sources that change the color temperature and improve the color rendering index, can solve the problems of being easily affected by temperature, improving the color rendering index, and not being able to adjust the brightness and chromaticity arbitrarily
Pending Publication Date: 2020-01-14
肖高利
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Problems solved by technology
[0006] ⑴Currently, the cost of the existing scheme is relatively high by adjusting the coating material
[0007] (2) And through the adjustment of the coating material, it is easily affected by the temperature during use
[0008] (3) Some increase the color rendering index of R9 by adding red powder, and the cost is higher
[0009] ⑷The scheme of adding red, green and blue lamp beads cannot effectively reduce the interference of blue light, and at the same time cannot arbitrarily adjust the brightness and chromaticity of the light to achieve the effect of improving the color rendering index
Its shortcoming is: the LED spherical lamp simply combines different lamp beads, and does not perform selective blue light filtering according to the luminous curve of the lamp beads, and does not control the lamp beads to improve the color rendering index
Method used
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[0044] The present invention will be further detailed below in conjunction with the accompanying drawings:
[0045] See Figure 1 to Figure 3 As shown, the LED lamp 4 with improved color rendering index includes a housing 6 in which the LED lamp holder 1 control board 2, the white lights 41 installed on the control board 2, and the white lights 41 are separately arranged on both sides The green light 42 and the red light 43 are provided in front of the white light 41, and a filter 3 for filtering out part of the blue light is provided in front of the white light 41, and a diffusion plate 5 covering the effective area of the LED light 4 is provided in front of the filter 3. The filter 3 can be configured as a band-pass filter or a cut-off filter.
[0046] See Figure 1 to Figure 4 As shown, the lamp source with improved color rendering index and the method for changing the color temperature of the lamp source include the following steps:
[0047] (1) The white light 41 of the white...
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The invention relates to a lamp source for improving a color rendering index and a method for changing a color temperature. The lamp source for improving the color rendering index comprises a shell; acontrol board is arranged in the shell; lamp beads are mounted on the control board; the lamp beads at least comprise red, green and white lamps; and an optical filter for filtering out part of bluelight is arranged in the front of the white lamp. The method for changing the color temperature for the lamp source comprises the steps of: (1) after filtering out a peak of the blue light of the white lamp in the white lamp, the green lamp and the red lamp by the optical filter, fulfilling the color mixing aim with the red lamp and the green lamp through a scatter plate so as to form single colormixed light; and (2) carrying out current ratio regulation on the basis of original brightness, chroma and color temperatures of the red lamp, the green lamp and the white lamp by the control board so as to fulfill the aim of regulating a color mixed spectrum.
Description
Technical field [0001] The invention relates to the technical field of LED lamps, in particular to a lamp source for improving the color rendering index and a method for changing the color temperature. Background technique [0002] In recent years, with the continuous development of LED technology, it is possible to use LED as a lighting source. However, the light source has strict requirements on the color rendering index in lighting fixtures. Regrettably, the LED lighting market is still in a chaotic state, and the color rendering index of each company is uneven. In addition, it has been confirmed that LED blue light poses a threat to the health of the fundus and easily induces related ophthalmic diseases, which becomes a restrictive issue in the promotion and application of LED lighting products. [0003] The color rendering index refers to the degree to which an object is illuminated by a certain light source and a standard light source (usually using sunlight as a standard li...
Claims
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Login to View More IPC IPC(8): F21K9/20F21V9/40F21V19/00F21V23/00H05B33/08F21Y115/10H05B44/00
CPCF21K9/20F21V9/40F21V19/00F21V23/003F21Y2115/10
Inventor 肖高利
Owner 肖高利