CN101382263A

CN101382263A - Color temperature adjustable integration high-power LED medical illumination chip

Info

Publication number: CN101382263A
Application number: CNA2008102144115A
Authority: CN
Inventors: 鲁广洲; 高康荣
Original assignee: CHONGQING BANGQIAO TECHNOLOGY Co Ltd
Current assignee: CHONGQING BANGQIAO TECHNOLOGY Co Ltd
Priority date: 2007-08-22
Filing date: 2008-08-22
Publication date: 2009-03-11

Abstract

The invention provides an integrated large-power LED medical illumination chip which can be used as a light source with adjustable color temperature for medical operating illumination, inspection illumination, and whole illumination in an operating room; the chip mainly comprises an LED tube core, a substrate, a heat dissipation plate, a power switchover line and an LED driving controller; LED tube cores with different colors are integrated on the substrate of a circuit board by a certain array; the substrate is connected on the heat dissipation plate; according to different colors of LED tube cores, the integrated chip is divided into a plurality of groups which are used for power supply respectively. Brightness of various colors can be adjusted independently, the integrated large power LED chip can be adjusted in the range of 3500K-6500K to have any color temperature and brightness according to the mixed color proportion of the LED tube core series of different colors, the chip can be used for illumination in operating rooms, inspection rooms, environment with special color temperature requirement and the like, is especially applicable for medical illumination and the like, and is beneficial for improving the medical illumination quality and reducing the medical negligence.

Description

Color temperature adjustable integration high-power LED medical illumination chip

Technical field

The present invention relates to a kind of light source, particularly a kind of integration high-power LED medical illumination chip that is used for the adjustable color temperature that medical illumination uses as light source, optimum in operating room, inspection chamber etc. as operation, check in illumination and the medical integral illumination and use as light source.

Background technology

Lighting sources etc. are the conventional and indispensable equipment of hospital, and using medical lighting system is condition of work and prerequisite necessary in numerous curative activities.The indoor employed shadowless lamp of hospital surgical, inspecting lamp etc. are to constitute lamp holder integral body by umbrella shape lamp housing and one group of based on halogen bulb at present.The problem that it exists some designs and uses, as colour temperature can't regulate, temperature rise is too high, center spot place brightness irregularities, power consumption big, aberration is big, volume is big, the requirement that can not satisfy the vertical-horizontal lamina air flow, should not be in the purification operating room use of high request etc., lighting quality is low influence the doctor to the tissue discriminating.

Summary of the invention

A kind of color temperature adjustable integration high-power LED medical illumination chip, the operation illumination, inspection illumination, the interior integral illumination of operating room that can be used in the medical treatment use as light source, and it mainly comprises LED tube core, substrate, heat sink, power supply transfer line, LED driving governor; The LED modules with different colors tube core is integrated in by array way on the substrate with circuit board, and substrate is fixed on the heat sink; Substrate with circuit board is cascaded two or more same colors LED tube core, power supply transfer line one end connects another section of LED tube core string and is connected on the LED driving governor, power supply transfer line branch multichannel is series-connected to the LED modules with different colors tube core the different outputs of LED driving governor, the brightness of every kind of LED string of LED driving governor control can be regulated the gentle brightness of random colour that above-mentioned integrated high power LED chip has by the colour mixture ratio of LED modules with different colors tube core string in 3500K～6500K scope.The present invention is owing to adopt said structure can regulate the colour temperature and the brightness of light that integrated LED chip sends within the specific limits continuously, different tissues can both be observed clearly, improve the medical illumination quality and reach optimum and reduce the malpractice of bringing because of the wrong identification tissue.

The present invention compares the characteristics that have with traditional lighting source:

1, colour temperature can be regulated continuously, can make colour temperature adjustable continuously in 3500K～6500K scope by LED modules with different colors brightness ratio on the control chip, can regulate according to the definition difference of different tissues under different-colour to reach better illuminating effect;

2, adjustable brightness, by regulating the brightness of white light LEDs on the chip, the brightness of continuous adjusting output light makes it the comfort level that reaches ideal, makes that eyes are difficult for producing sense of fatigue when working long hours;

3, volume is little, and integrated LED chip is integrated in a lot of LED tube cores on the very little substrate closely, has reduced the volume of illuminator greatly, and the influence that the air in medical illumination space flows reduces, and effectively raises the operating room depuration quality.

4, extra long life, the LED theoretical work life-span is 100,000 hours, and the life-span of Halogen lamp LED only is 1000 hours at present;

5, safe in utilization, what the traditional medical illumination was used is based on halogen bulb, and based on halogen bulb is owing to the temperature height that produces, easily reason such as explosion exists hidden danger safe in utilization, and LED temperature under better heat radiation situation is low and be difficult for breaking, and thoroughly eliminates above-mentioned hidden danger safe in utilization;

6, environmental protection, the LED lamp is shatter-proof, shock-resistant be difficult for broken, discarded object is recyclable, does not have mercury pollution, is real environment-friendly products;

7, green light source, reaction speed is fast; Do not have infrared and composition ultraviolet, do not have radiation pollution, have very strong light emission direction, hot spot is even; Dimming behavior is good, and colour temperature can not produce the collimation error when changing; The cold light source caloric value is low, can safe touch; These all are that incandescent lamp and fluorescent lamp are inaccessible.It can provide the illumination space of comfortable, can satisfy people's physiological health demand again well, and this organizes resolution ratio and reduce unnecessary malpractice particularly important for the visual fatigue that alleviates the doctor in large-scale, the long-time curative activity process, raising;

So just can improve lighting quality, make the minimizing malpractice that better guarantee arranged.

Description of drawings

Fig. 1 is the structural representation of the embodiment of the invention.

Fig. 2 is the LED die array structural representation of the embodiment of the invention.

The specific embodiment

Fig. 1 provides 1 embodiment of the present invention, 81 LED tube cores 1 are welded on the substrate 2 with circuit board, LED tube core 1 has red-light LED tube core R, green light LED tube core G, blue-ray LED tube core B, white light LEDs tube core W4 kind, the LED tube core 1 of different colours is pressed the square formation array distribution on substrate 2, rely on the circuit board on the substrate 2 that same color LED tube core 1 is cascaded, substrate 2 is fixedly mounted on the radiator 3, power supply transfer line 4 one ends connect LED tube core string, another section of power supply transfer line 4 is connected on the LED driving governor 5, the power supply transfer line divides 4 the tunnel to provide electric current for 4 kinds of color LED tube core strings, regulate the brightness ratio of LED driving governor 5 control shades of colour LED tube cores 1, by the colour mixture of LED modules with different colors tube core 1, just can in the scope of 3500K～6500K, adjust light emission color temperature thus.

Fig. 2 provides 1 embodiment of LED die array structure of the present invention, and LED tube core 1 is welded on the substrate 2 with circuit board, and LED tube core 1 is distributed on the substrate 2 by square formation or circle or rectangular array.

Claims

1, a kind of color temperature adjustable integration high-power LED medical illumination chip is characterized in that: the LED tube core close-packed array that can control two or more color of brightness respectively is integrated on the substrate with circuit board, and substrate is fixed on the heat sink.

2, a kind of color temperature adjustable integration high-power LED medical illumination chip, it is characterized in that: the quantity of same color LED tube core is two or more, the LED tube core of same color is cascaded, and is connected on different outputs on the LED driving governor as the LED modules with different colors tube core polyphone that utilizes the power supply transfer line.

3, the adjustable integrated power LED of a kind of colour temperature medical illumination chip is characterized in that: the LED tube core can be red, green, blue, white, amber.

4, the adjustable integrated power LED of a kind of colour temperature medical illumination chip is characterized in that: the LED die array can be circle, rhombus, rectangle.