LED full-spectrum light source

Abstract

The utility model discloses an LED full-spectrum light source which comprises a substrate, the substrate is provided with a light-emitting unit composed of a plurality of LED wafers, and the LED wafers comprise an ultraviolet light LED wafer, a purple light LED wafer, a blue light LED wafer, a green light LED wafer, a yellow light LED wafer, a red light LED wafer and an infrared light LED wafer. Positive and negative pins for connecting the light-emitting units with a power supply are also arranged on the substrate; the light source can generate an almost continuous spectrum. This means that the LED lamp can be closer to natural sunlight, provides a more real lighting effect, and can also meet the lighting effect for applications requiring high-quality lighting, such as museums, galleries, photography and medical fields. The full-spectrum light source generally has a higher color rendering index CRI, and the real color of the object can be accurately reproduced. This is very advantageous for commercial displays, artwork displays, and any scenarios that have strict requirements for color accuracy.

Description

TECHNICAL FIELD

[0001] The utility model relates to lighting technical field especially relates to a LED full spectrum light source. BACKGROUND

[0002] Traditional LED lamps play an important role in lighting technology, as they have higher energy efficiency, longer lifespan and smaller size compared to traditional light sources such as incandescent and fluorescent lamps. However, as mentioned, traditional LED lamps typically emit light within a specific wavelength band, which relies mainly on a mixture of blue and yellow light to generate a white light effect. This synthesis method, while providing sufficient brightness and relatively low cost, produces a spectrum that is not continuous. In other words, it does not cover the entire visible spectrum range like sunlight or high-quality incandescent light.

[0003] Due to this non-continuous spectral characteristic, traditional LED lamps can lack certain intermediate wavelengths of light, such as green or other transition colors, which affects their color rendering ability, known as the Color Rendering Index (CRI). A low CRI value means that objects may appear distorted under this light source, with colors that may not appear as true as under natural daylight or high CRI light sources. For example, in a retail environment, the colors of clothes or food may not appear as bright or accurate as intended, affecting the shopping experience of customers.

[0004] In addition, prolonged exposure to such unnatural light can also have a negative impact on visual comfort. The eye needs to adapt to different wavelengths of light, and if certain key wavelengths are missing, it can lead to visual fatigue and even affect the body's circadian rhythm, especially when these lamps are used in residential spaces or workplaces.

[0005] The present utility model is made based on the above situation. CONTENT OF THE UTILITY MODEL

[0006] The present utility model overcomes the shortcomings of the prior art and provides an LED full spectrum light source that approximates natural daylight, has good lighting effect and high color rendering index.

[0007] The present utility model is achieved through the following technical solutions:

[0008] An LED full spectrum light source, comprising a substrate, the substrate is provided with a light-emitting unit composed of a plurality of LED chips, the LED chips include ultraviolet light LED chips, violet light LED chips, blue light LED chips, green light LED chips, yellow light LED chips, red light LED chips and infrared light LED chips, the substrate is also provided with positive and negative pins for connecting the light-emitting unit to a power supply;

[0009] The wavelength range of the ultraviolet light LED wafer is 300-350 NM, the wavelength range of the violet light LED wafer is 350-400 NM, the wavelength range of the blue light LED wafer is 420-470 NM, the wavelength range of the green light LED wafer is 520-540 NM, the wavelength range of the yellow light LED wafer is 580-600 NM, the wavelength range of the red light LED wafer is 620-650 NM, and the wavelength range of the infrared light LED wafer is 750-1000 NM.

[0010] The LED full-spectrum light source as described above, the LED wafers in the light-emitting unit are arranged in a matrix on the substrate.

[0011] The LED full-spectrum light source as described above, the interval between two adjacent LED wafers is 0.1-20.0 MM.

[0012] The LED full-spectrum light source as described above, the interval between every two adjacent LED wafers is equal.

[0013] The LED full-spectrum light source as described above, the substrate is further provided with a transparent protective cover for protecting the light-emitting unit.

[0014] Compared with the prior art, the LED full-spectrum light source has the following advantages:

[0015] The present application adopts different wavelength LED wafers from ultraviolet to infrared, and the light source can generate an almost continuous spectrum. This means that it can be closer to natural daylight, providing a more realistic lighting effect. For applications that require high-quality lighting, such as museums, galleries, photography, and medical fields, the lighting effect can also meet the lighting effect. Full-spectrum light sources usually have a higher color rendering index CRI, which can accurately reproduce the true colors of objects. This is very advantageous for commercial displays, art exhibitions, and any scene that requires strict color accuracy. Compared with traditional LED lamps, full-spectrum LED lights provide softer and more uniform light, reducing the risk of eye fatigue and improving the comfort of long-time work. Although it contains multiple LED wafers, LED technology itself is known for its high energy efficiency. Therefore, even in a multi-wafer configuration, such a light source still maintains relatively low energy consumption while providing excellent lighting performance. BRIEF DESCRIPTION OF DRAWINGS

[0016] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings, in which:

[0017] Fig. 1 is a structural schematic diagram of the present application;

[0018] Fig. 2 is a sectional view schematic diagram of the present application;

[0019] Fig. 3 is a typical spectral diagram. DETAILED DESCRIPTION

[0020] The utility model will be further described in connection with the drawings:

[0021] As Figs. 1-2 shown in a kind of LED full spectrum light source, including substrate 1, the substrate 1 is equipped with the light-emitting unit 2 of being composed of multiple LED chips and conductive circuit, the light-emitting unit 2 is connected with conductive circuit, the LED chip includes ultraviolet light LED chip 21, purple light LED chip 22, blue light LED chip 23, green light LED chip 24, yellow light LED chip 25, red light LED chip 26 and infrared light LED chip 27, the substrate 1 is also equipped with the positive and negative pins 3 for connecting power supply of light-emitting unit 2.

[0022] The present application adopts different wavelength LED chip combination from ultraviolet to infrared, and the light source can generate an almost continuous spectrum. This means that it can be closer to natural daylight, providing more realistic lighting effects, and can also meet the lighting effects for applications requiring high-quality lighting, such as museums, galleries, photography and medical fields. Full spectrum light source usually has higher color rendering index CRI, which can accurately reproduce the true color of objects. This is very advantageous for commercial display, art exhibition and any scene with strict requirements for color accuracy. Compared with traditional LED lamps, full spectrum LED light provides more soft and uniform light, reducing the risk of eye fatigue and improving the comfort of long-time work. Although it contains multiple LED chips, LED technology itself is known for its high energy efficiency. Therefore, even in a multi-chip configuration, such a light source still maintains relatively low energy consumption while providing excellent lighting performance.

[0023] Specifically, the wavelength range of the ultraviolet light LED chip 21 is 300-350NM, the wavelength range of the purple light LED chip 22 is 350-400NM, the wavelength range of the blue light LED chip 23 is 420-470NM, the wavelength range of the green light LED chip 24 is 520-540NM, the wavelength range of the yellow light LED chip 25 is 580-600NM, the wavelength range of the red light LED chip 26 is 620-650NM, and the wavelength range of the infrared light LED chip 27 is 750-1000NM.

[0024] In an embodiment, the LED dies in the light emitting unit 2 are arranged in a matrix on the substrate 1. The matrix arrangement can ensure that the light emitted from each LED die can cover the target area more uniformly, reducing the possibility of bright spots or dark areas. This uniformity is particularly important for applications that require high lighting quality, such as museums, galleries, and professional photography studios. The matrix arrangement allows more LED dies to be integrated within a limited substrate area, thereby improving the overall space utilization. With proper matrix spacing, there is enough space between each LED die for heat dissipation, which helps to reduce the operating temperature, prolong the service life of the LED, and maintain the stability of its optical performance. Good heat dissipation management can also reduce the impact of thermal stress on electronic components, improving the reliability of the system. The matrix layout can simplify the design of the driving circuit through row-column addressing. A small number of pins can control a large number of LED dies, reducing wiring complexity and manufacturing costs.

[0025] Further, the spacing between two adjacent LED dies is 0.1-20.0 MM.

[0026] Further, the spacing between every two adjacent LED dies is equal. Uniform spacing ensures that the light emitted by each LED die can diffuse and mix in a similar manner, providing more consistent and smooth light distribution throughout the illumination area. This helps to reduce brightness unevenness, shadows, and spot phenomena.

[0027] In an embodiment, LED dies of the same color are arranged in an alternating manner, and LED dies of the same color are evenly dispersed, ensuring that at least one die of a different color is arranged between any two LED dies of the same color. Of course, in order to ensure mixing effects, some LED dies of the same color can also be arranged adjacent to each other

[0028] In an embodiment, the substrate 1 is also provided with a transparent protective cover 4 for protecting the light emitting unit 2. The transparent protective cover provides a direct physical barrier for the light emitting unit 2, preventing dust, moisture, particulate matter, and other external contaminants from entering, thereby prolonging the service life of the LED dies and their connecting lines. This is particularly important for lamps used in outdoor or industrial environments. The protective cover can prevent damage or short circuit risk caused by accidental contact, especially when used in public places or high-traffic areas, effectively avoiding damage caused by external impact or improper operation. The protective cover 4 usually has good sealing performance and can provide IP-level waterproof and moisture-proof protection, suitable for use in humid environments or situations that require regular cleaning, such as kitchens, bathrooms, or outdoor lighting equipment.

Claims

1. An LED full-spectrum light source, characterized by: The application relates to a substrate (1) provided with a light-emitting unit (2) composed of a plurality of LED wafers, wherein the LED wafers include ultraviolet LED wafers (21), violet LED wafers (22), blue LED wafers (23), green LED wafers (24), yellow LED wafers (25), red LED wafers (26) and infrared LED wafers (27), and the substrate (1) is further provided with positive and negative pins (3) for connecting the light-emitting unit (2) to a power supply. The wavelength range of the ultraviolet LED wafers (21) is 300-350 NM, the wavelength range of the violet LED wafers (22) is 350-400 NM, the wavelength range of the blue LED wafers (23) is 420-470 NM, the wavelength range of the green LED wafers (24) is 520-540 NM, the wavelength range of the yellow LED wafers (25) is 580-600 NM, the wavelength range of the red LED wafers (26) is 620-650 NM, and the wavelength range of the infrared LED wafers (27) is 750-1000 NM.

2. A LED full-spectrum light source according to claim 1, characterized in that: The LED wafers in the light-emitting unit (2) are arranged in a matrix on the substrate (1).

3. A LED full-spectrum light source according to claim 2, characterized in that: The spacing between two adjacent LED wafers is 0.1-20.0 MM.

4. An LED full-spectrum light source as claimed in claim 3, characterized in that: The spacing between every two adjacent LED wafers is equal.

5. A LED full-spectrum light source according to any of claims 1-4, characterized in that: The substrate (1) is further provided with a transparent protective cover (4) for protecting the light-emitting unit (2).

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