Light-emitting diode (LED) color temperature adjusting and controlling device and LED color temperature continuous adjustable control method

A control device and color temperature adjustment technology, applied in the field of lighting, can solve the problems of uneven brightness at the center spot, low color rendering index of a single color temperature LED, and inappropriateness, and achieve the effect of less fatigue.

Inactive Publication Date: 2012-07-18
重庆邦桥科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has many design and application problems, such as the color temperature cannot be adjusted, the temperature rise is too high, the brightness of the central spot is uneven, the power consumption is large, the color difference is large, the volume is large, and it cannot meet the requirements of vertical and horizontal air laminar flow. Used in high-demand clean operating rooms, low lighting quality affects doctors' identification of tissues; in the past two years, some companies have developed medical lighting devices with single color temperature LED light sources and medical ligh...

Method used

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  • Light-emitting diode (LED) color temperature adjusting and controlling device and LED color temperature continuous adjustable control method
  • Light-emitting diode (LED) color temperature adjusting and controlling device and LED color temperature continuous adjustable control method
  • Light-emitting diode (LED) color temperature adjusting and controlling device and LED color temperature continuous adjustable control method

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Experimental program
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Effect test

Embodiment approach 1

[0041] refer to figure 1 of figure 2 , the LED color temperature control device of this embodiment, the LED color temperature control device is a manual control device, which is composed of a regulator 5, a driver 3 and a power supply.

[0042] refer to figure 1 , the regulator 5 includes a color temperature adjustment control panel, a control signal generator, an LED working status indicating device and an RS232 communication module. The color temperature adjustment control panel is used for power on and off and for the operator to send a color temperature adjustment signal. The color temperature adjustment control panel includes a power control key KEY1, an LED color temperature control key and an LED brightness control key. Among them, the LED color temperature control key is composed of a color increase key KEY4 and a color temperature decrease key KEY5, and the LED brightness control key is composed of a brightness increase key KEY2 and a brightness decrease key KEY3....

Embodiment approach 2

[0053] refer to image 3 , the LED color temperature continuously adjustable control system of the present embodiment, the LED color temperature continuously adjustable control system is an automatic control device, the specific structure is as follows:

[0054] The integrating sphere 15 is used to collect the light emitted by the LED. The spectrometer 17 is connected to the integrating sphere 15 through an optical fiber 16 . After receiving the output signal from the integrating sphere 15, the spectrometer 17 calculates the exact value of the color temperature and brightness of the light emitted by the LED. An ammeter 19 is connected in series with each output channel of the driver 3, and the ammeter 19 is connected to the computer 18 through a data line, and is used to collect the current value of each output channel and transmit it to the computer 18. According to the preset calibration program, the computer 18 divides the color temperature and brightness of the light emi...

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Abstract

The invention discloses a light-emitting diode (LED) color temperature adjusting and controlling device. The device comprises an adjustor and a driver, wherein the adjustor comprises a color temperature adjusting and controlling panel and a control signal generator; the color temperature adjusting and controlling panel is used for connecting and disconnecting a power supply and for an operator to send a color temperature adjusting and controlling signal; after receiving the color temperature adjusting and controlling signal sent by the color temperature adjusting and controlling panel, the control signal generator outputs a corresponding control signal according to an instruction; the driver comprises a microprocessor and a constant current driving module; the microprocessor receives the control signal from the control signal generator, analyzes and calculates the control signal and sends a pulse-width modulation (PWM) adjusting signal which changes the LED working current; and the constant current driving module outputs constant LED working current according to the PWM adjusting signal provided by the microprocessor. The output current of a control device is changed in a manual form, so that the color temperature and the brightness of the LED connected with the control device are adjusted.

Description

technical field [0001] The invention relates to the technical field of lighting, in particular to an LED color temperature control device and a control method for continuously adjustable LED color temperature. Background technique [0002] Surgical shadowless lamps, examination lamps, and the overall lighting system in the operating room are routine and necessary equipment in hospitals. The use of medical lighting systems is a necessary working condition and prerequisite for many medical jobs. At present, the shadowless lamps and examination lamps used in hospital operating rooms are huge lamp holders composed of umbrella-shaped lamp housings and a group of halogen bulbs. It has many design and application problems, such as the color temperature cannot be adjusted, the temperature rise is too high, the brightness of the central spot is uneven, the power consumption is large, the color difference is large, the volume is large, and it cannot meet the requirements of vertical a...

Claims

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Application Information

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IPC IPC(8): H05B37/02F21S2/00F21V19/00F21V13/02F21Y101/02F21K9/20F21Y105/16F21Y113/17F21Y115/10
Inventor 鲁广洲周奇高康荣
Owner 重庆邦桥科技有限公司
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