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Color temperature-adjustable LED lamp and its color temperature adjusting method

A technology for adjusting the color temperature of LED lamps, which is applied to the layout of electric lamp circuits, lighting devices, light sources, etc., and can solve the problems of LED lamp color temperature changes, luminous characteristics and circuit characteristics are not completely consistent, and manufacturing process differences, etc.

Active Publication Date: 2009-07-15
GUANGZHOU YAJIANG PHOTOELECTRIC EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although LED lights perform well in all aspects, there are still disadvantages for the variability of the color temperature of LED lights. The color temperature of most LED lights has been set before the product leaves the factory, so the color temperature of LED lights is also However, due to the inconsistency of the luminous characteristics of the LED and the circuit characteristics or the difference in the manufacturing process, the color temperature of the LED lamp may also change after being used for a long time.
It is basically impossible for multiple LED lamps to emit the same color temperature. Although the color temperature of each LED lamp is only slightly different, these subtle color temperature differences are not allowed in places with high lighting requirements.

Method used

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  • Color temperature-adjustable LED lamp and its color temperature adjusting method

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Embodiment 1

[0023] An LED lamp with adjustable color temperature includes LED lamp group 5 and a color temperature adjustment device, and the color temperature adjustment device includes a DMX512 console 2 and a circuit board (not shown). The LED lamp group 5 includes LED lamp bodies in three colors of red, green and blue, and the circuit board is provided with a CPU 1, and the CPU 1 is respectively controlled with the control panel 3, the display module 6, the memory 4, and the DMX512 Stand 2, LED lamp group 5 are connected, and memory 4 in the present embodiment is 1 2 C serial port EEPROM. The control panel 3 is provided with three assignment buttons, and the numerical value input range of the three assignment buttons is 0~255, and the assignment buttons can pass CPU 1 to I 2 C serial EEPROM for numerical input. The first assignment button corresponds to the input of the brightness level value of the red LED lamp body, the second assignment button corresponds to the brightness level ...

Embodiment 2

[0028] An LED lamp with adjustable color temperature includes LED lamp group 5 and a color temperature adjustment device, and the color temperature adjustment device includes a DMX512 console 2 and a circuit board (not shown). The LED lamp group 5 includes two kinds of white LED lamp bodies with different color temperatures. The circuit board is provided with a CPU 1, and the CPU 1 is respectively connected with the control panel 3, the display module 6, the memory 4, the DMX512 console 2, LED lamp group 5 connections, memory 4 in the present embodiment is 1 2 C serial port EEPROM. The control panel 3 is provided with two assignment buttons, the value input range of the two assignment buttons is 0~255, and the assignment button can pass CPU 1 to I 2 C serial port EEPROM to modify the value. The first assignment button corresponds to the modification of the brightness level value of the high color temperature white LED lamp body, and the second assignment button corresponds t...

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Abstract

The invention discloses an LED lamp with adjustable color temperature and a color temperature adjusting method thereof. The LED lamp comprises an LED lamp group and a color temperature adjusting device; the color temperature adjusting device comprises a DMX512 control stand and a circuit board; the LED group comprises LED lamp bodies with different colors or color temperatures; a CPU is arranged on the circuit board and the CPU is respectively connected with a control panel, a display module, a memory, the DMX512 control stand and the LED lamp group; the control panel is provided with an assignment button for assigning the CPU. The read / write mode of the memory is changed to cause the CPU to carry out read / write operation on the memory, the brightness level figure is input by the evaluation button on the control board to drive the LED lamp bodies in the LED lamp group to illuminate and the brightness level figure is considered as a default value or modified value, thus the overall color temperature of the LED lamp group is changed.

Description

technical field [0001] The invention relates to the field of LED lighting, in particular to an LED lamp composed of LED lamp groups and a method for adjusting the color temperature of the LED lamp. Background technique [0002] Because LED lamps are superior to existing incandescent lamps and energy-saving lamps, LED lamps have gradually replaced incandescent lamps and energy-saving lamps in various fields of lighting. Lighting, etc., LED lights can achieve satisfactory results. Although LED lights perform well in all aspects, there are still disadvantages for the variability of the color temperature of LED lights. The color temperature of most LED lights has been set before the product leaves the factory, so the color temperature of LED lights is also However, due to the inconsistency of the luminous characteristics of the LED and the circuit characteristics or the difference in the manufacturing process, the color temperature of the LED lamp may also change after being us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S2/00F21V23/00H05B37/02F21Y101/02F21K9/20F21Y115/10
Inventor 陈家强
Owner GUANGZHOU YAJIANG PHOTOELECTRIC EQUIP CO LTD
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