TWI246207B - White light device with color temperature compensation - Google Patents

Abstract

A color temperature compensation unit comprising red LED, green LED, and blue LED is arranged around a high power white light LED to compensate the color temperature deviation of the white light LED which caused by material deviation or manufacturing deviation or both.

Description

1246207 Description of the invention (1) 1 · The technical field of this technology belongs to 4 ## Applicable to white light source, suitable for lighting or decorative light source 2 · Prior art 11 > Known art display US patent 6. 7 6 5 No. 2 3 7 reveals a kind of white light, which is made of blue light-emitting diode 12 to excite fluorescent substance 2 2 to generate white light. It is placed on the first metal leg 16 and the light-emitting diode 12 is connected with metal wire 1 4 Electricity is not connected to the first metal 16 and the second metal 16. The white light rays 2 4 are emitted in the directions shown by the arrows, and the periphery of the light-emitting diode 12 is formed into a dome 18 in the shape of a colloid 2 0 Baochen ’s outer front end. ^ The disadvantage of light-emitting diodes is that mass production products often cause the color temperature of light to be different. Because during the manufacturing process, the coating including the fluorescent material 2 2 is uniformly uniform: the uniformity of the quality of the phosphorescent material 2 2, the uniformity of the material of the packaging colloid 2, the light emitting diode 2, and the front end dome The distance, power, and physical properties change after being heated after use. It is affecting the temperature of the product.] Therefore, the traditional white light-emitting diodes appear between individuals in the same batch of products for a period of time. First, a color temperature compensation unit was conceived and placed near the basic source of white light. The color temperature compensation unit consists of red light-emitting diodes, green light-emitting diodes, and blue light-emitting diodes. It consists of red light emitting diodes, green light emitting diodes, and blue light emitting diodes.

1246207 V. Description of the invention (2) Adjust the wavelength that compensates for the lack of white light source, and correct the light source 5 that is the output of basic white light so as to maintain a certain color temperature quality. 3. Contents of this technology In order to solve the phenomenon of uneven luminous quality of white light lamps of conventional technology, a color temperature compensation unit is designed by red light emitting diodes, green light emitting diodes, and blue light emitting diodes. The body is arranged around the main source of white light to compensate for the defects of white light. Before the product package is shipped from the factory, the compensation unit can be adjusted to maintain the color temperature of the main white light source to a certain standard, so that the individual products have uniform color temperature quality. In order to solve the phenomenon of uneven luminous quality of the white light lamps of this technology, this technology also designed adjustment buttons. After the product is used for a period of time, if the color temperature changes, you can still manually adjust the color temperature of the white light lamps. 4 · Implementation Figure 2. The first embodiment of this technology shows that this technology is a white light lamp with color temperature compensation, including: substrate 30, high-power white light emitting diode w emits white light, and is placed on the aforementioned substrate 30. And a color temperature compensation unit, which is disposed on the aforementioned substrate 30 and includes-a red light emitting diode R, a green light emitting diode G, and a blue light emitting diode.

1246207 V. Description of the invention (3) Photodiode B is composed of three light-emitting diodes and surrounds the basic white light-emitting diode w. In the automatic production process, the color temperature of the white light emitting diode w can be detected first, and the red light emitting diode R, the green light emitting diode G, or the blue light emitting diode B that needs to be compensated is determined. Specifications, and then select the appropriate specifications of the red light emitting diode R, the green light emitting diode G, and the blue light emitting diode B to form a white light compensation unit, which is placed around the basic white light emitting diode w and packaged. carry out. In this way, the color temperature of the white light fixture can be kept within a certain specification when it leaves the factory.

This kind of automatic detection first determines whether the color temperature of the white light-emitting diode of the main light source is within the specifications before the product is assembled. If it is within the specifications, no color temperature correction unit is required. If correction is needed, in the best case, just select one of three red light emitting diodes R, green light emitting diodes G, or blue light emitting diodes B, followed by two of three. , The worst case is to select three.

The red light-emitting diode R, the green light-emitting diode G, and the blue light-emitting diode B can be screened and sorted in advance to facilitate the subsequent use of components of appropriate specifications, combined with basic high-power white light-emitting diodes. For color temperature compensation of polar body w. When AC power is supplied from an external power source, the inside of the substrate 30 can be rectified.

Page 7 1246207 V. Description of the invention (4) The control unit converts external AC power to appropriate DC power and provides the system requirements. The base material 30 can also be provided with a fin-shaped heat dissipation unit 31 around the periphery to provide a heat dissipation function, so that the temperature of the entire product can be kept relatively low, and the product life can be extended. One end of the substrate 30 is provided with a rotary joint 32 for screwing the lamp on a traditional lamp holder (shown in the figure). The other end of the base material 30 may also be provided with a light bulb 3 3 to protect the light-emitting elements, reduce the intrusion of dust and moisture, and improve the product life. The shape of the light bulb 3 3 may have other changes, including changes in shape, color, etc., providing functions such as decoration, modification of emitted light, etc. Figure 3. The circuit schematic of Figure 2 shows the circuit schematic of the design of Figure 2. Basic high-power white light-emitting diodes w and red light-emitting diodes R, green light-emitting diodes G, and blue light-emitting diodes. B is connected in parallel. When the main high-power white light-emitting diode w is placed on the substrate 30, use an instrument to detect its color temperature, and select the appropriate specifications of the red light-emitting diode R, the green light-emitting diode G, and the blue light-emitting diode. The diode B is disposed on the substrate 30 so that the color temperature quality of the output white light after color mixing is maintained at a certain specification. FIG. 4 shows a second embodiment of the present technology. An overall brightness control unit 34 is disposed on the substrate 30 to control the overall brightness of the white light fixture.

1246207 V. Description of the invention (5) Figure 5 · Shows the schematic circuit diagram of Figure 4, showing the overall brightness control unit 3 4 can be a suitable place to place a variable resistor 3 5 and adjust the variable resistor 3 5 At the same time, the current density through the four light emitting diodes (R, G, B, W) is adjusted to control the overall brightness of the white light fixture. Figure 6. The third embodiment of the technique shows that the control unit of the color temperature compensation unit can be placed on the substrate 30 in this technique. The figure shows the red light emitting diode control button SR, the green light emitting diode control button SG, The blue light-emitting diode control button SB and the high-power white light-emitting diode control button SW are placed on the substrate 30. When used for a period of time, the quality of the constituent units of the product changes, resulting in a color temperature deviation. The technical color temperature compensation device can adjust the color temperature of the entire white light fixture through the adjustment of these adjustment buttons. Figure 7. Schematic diagram of the circuit in Figure 6, showing a suitable place for the current shunt of red light emitting diode R, green light emitting diode G, and blue light emitting diode B, respectively (3 6, 3 7, 3 8), adjusting the variable resistors (3 6, 3 7, 3 8), respectively, can adjust the current density through the three light-emitting diodes (R, G, B,), Used to control the compensated color temperature of white light fixtures. When the color temperature is adjusted, the overall brightness can be controlled by the variable resistor 35.

1246207 V. Description of the invention (6) Figure 8. Example 4 of this technique The rectification control unit 39 of this technique can be placed outside the white light fixture 50. Figure 9. The fifth embodiment of the technique shows the white light fixture 50 of the present technique. The mask can be a horn shape 3 3 2 to provide functions such as decoration, light collection, and modified outgoing light. Multiple plug-in pins 3 2 2 are designed to meet the electrical requirements of four light-emitting diodes (R, G, B, W). White light fixtures 50 can be plugged into the corresponding lamp holders 3 2 3. At the time, ο 3 material bases in the ΚΓ stand are set at 9 3 yuan, and a single six system is used to control the technique of Shiliushi. This technique • The diagram in this 10 shows the coupling and can be simplified by using the root and the two. 4 32 source and 3 electrical externally connected components and external lamps are used for the actual production of craftsmanship and technology, and should be used in combination with the existing 11 single lamp. Shapeable I 1 β— ο it mouth 4 external tube plugged with seven lights edge ο 4 state tube lamp picture 1 2. The eighth embodiment of this technology shows that when this technology is applied, the shape of the outside of the light tube can be matched with existing lamps Type, made into a double-sided plug 4 02 lamp type 41. The foregoing description discloses a preferred embodiment of the technique and a design drawing,

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1246207 V. Description of the Invention (7) However, the preferred embodiments and design drawings are only examples, and are not intended to limit the scope of the right to this technology. Anyone who implements this technology by equal technical means, or Anyone who implements the scope of rights covered by the "Scope of Patent Application" does not depart from the spirit of this technology and is the scope of rights of the applicant.

Page 11 1246207 Simple illustration of the diagram 5. Simple illustration of the diagram Figure 1 · Known technique Figure 2 · First embodiment of this technique Figure 3 · Circuit diagram of Figure 2 Figure 4. Second embodiment of this technique Figure 5. Figure 4 Circuit schematic diagram 6 · Embodiment 3 of the technology Fig. 7. Circuit diagram of Fig. 6 Fig. 8 Embodiment 4 of the technology Fig. 9 Embodiment 5 of the technology Fig. 1 0. Embodiment 6 of the technology Fig. 1 1 · This technology Embodiment 7 Figure 1 2 · Embodiment 8 of this technology

6. Component No. List Blue Light Emitting Diode 1 2 Wire 1 4 Metal Pin 1 6

Dome 18 Colloid 20 Fluorescent substance 2 2 White light 2 4

Page 12 1246207 Simple illustration of the drawing Substrate 3 0

Fin-shaped cooling unit 3 1 Rotary joint 3 2 Plug-in pin 3 2 2 Lamp holder 3 2 3 Plug-in joint 3 2 4 Bulb 3 3 La 0 eight shape 3 3 2 Overall brightness control unit 34 Variable resistor 3 5, 2 6, 3 7, 3 8 Rectifier control unit 3 9 White light fixture 50 Red light emitting diode R Green light emitting diode G Blue light emitting diode B White light emitting diode W Red light emitting diode control button SR Green light emitting diode control SG Blue light emitting diode control SB White light emitting diode control SW

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Claims (1)

1246207 6. Scope of patent application 1. A white light lamp with color temperature compensation, comprising: (1) a substrate; (2) a white light emitting diode that emits white light and is placed on the aforementioned substrate; and (3) color temperature The compensation unit is disposed on the aforementioned substrate and includes at least one light-emitting diode selected from the following group-(a) a red light-emitting diode; (b) a green light-emitting diode; and (c) ) Blue light emitting diode. 2 · The white light fixture with color temperature compensation as described in item 1 of the scope of the patent application, wherein the substrate further comprises: a heat dissipation fin disposed on the periphery of the aforementioned substrate. 3. The white light fixture with color temperature compensation as described in item 1 of the scope of the patent application, wherein the substrate further includes: a rotary joint for rotationally coupling the lamp to the lamp holder. 4. The white light fixture with color temperature compensation as described in item 1 of the scope of the patent application, wherein the substrate is more packaged, including: a plug connector for plugging and coupling the lamp to the lamp holder. 5. White light lamp with color temperature compensation as described in item 1 of the scope of patent application Page 14 1246207 6. The scope of the patent application, wherein the color temperature compensation unit further includes a red light emitting diode, a green light emitting diode, and a red light emitting diode. 6. The white light fixture with color temperature compensation as described in item 5 of the scope of patent application, further comprising: (1) a red light control unit that controls the brightness of the aforementioned red light emitting diode (2) a green light control unit that controls The brightness of the aforementioned green light emitting diode and (3) the blue light control unit control the brightness of the aforementioned blue light emitting diode. 7. The white light lamp with color temperature compensation as described in the first item of the scope of patent application, further including: The overall brightness control unit controls the overall brightness of the aforementioned light emitting diode. 8. The white light fixture with color temperature compensation as described in item 1 of the scope of the patent application, further includes: a light-transmitting material, which is covered on the outer periphery of the aforementioned light-emitting diode to provide protection, beauty, or light modification. 9. The white light fixture with color temperature compensation as described in item 1 of the scope of the patent application, further includes: a ϋ eight lampshade, which covers the outer periphery of the aforementioned light emitting diode, to provide protection, beauty, or repair light. Page 15 1246207 VI. Scope of patent application 10. The white light fixture with color temperature compensation as described in item 8 of the scope of patent application, wherein the light-transmitting material constitutes a bulb type. 1 1. The white light fixture with color temperature compensation as described in item 8 of the scope of the patent application, wherein the light-transmitting material is a form of a tube. 1 2. The white light fixture with color temperature compensation as described in item 11 of the scope of patent application, wherein the lamp tube type has a single-sided plug. 1 3. The white light fixture with color temperature compensation as described in item 11 of the scope of patent application, wherein the lamp tube type has a double-sided plug. Page 16