CN217656775U

CN217656775U - LED eye-protecting lamp

Info

Publication number: CN217656775U
Application number: CN202221419795.6U
Authority: CN
Inventors: 闵长伟; 胡爱斌; 李雄; 唐金龙; 张亚伟; 闵璇皓蓝; 段鑫楠
Original assignee: Shenzhen Deled Led Co ltd
Current assignee: Shenzhen Deled Led Co ltd
Priority date: 2022-06-09
Filing date: 2022-06-09
Publication date: 2022-10-25
Anticipated expiration: 2032-06-09

Abstract

The utility model discloses a LED eye-protecting lamp, which comprises a LED light-emitting component consisting of an illumination unit and a light distribution unit, wherein the illumination unit and the light distribution unit are connected in parallel; the lighting unit comprises a white light control circuit and 1 or more groups of white light LED lamp groups, wherein each group of white light LED lamp group comprises one or more white light LED lamp beads; the light distribution unit comprises a red light control circuit, a red light LED lamp group, a green light control circuit and a green light LED lamp group, the red light control circuit and the red light LED lamp group are connected in series to form a red light color matching circuit, the green light control circuit and the green light LED lamp group are connected in series to form a green light color matching circuit, and the red light color matching circuit and the green light color matching circuit are connected in parallel. Through the proposal, the utility model discloses a LED eye-protecting lamp's illumination quality obtains huge promotion, more is close natural spectrum, has higher CRI value and R9 value, lower color tolerance.

Description

LED eye-protecting lamp

Technical Field

The utility model belongs to the technical field of the LED lighting apparatus technique and specifically relates to a LED eye-protecting lamp of high color rendering index.

Background

The LED (light-emitting diode) belongs to an all-solid cold light source, adopts a solid semiconductor chip as a luminescent material, and compared with the traditional lamp, the LED lamp is energy-saving, environment-friendly and good in color rendering property and response speed. In terms of energy consumption, the energy consumption of the LED lamp is one tenth of that of an incandescent lamp and one fourth of that of an energy-saving lamp. This is one of the biggest features of LED lamps. The prior people advocate energy conservation and environmental protection, and the characteristic of energy conservation ensures that the application range of the LED lamp is very wide, so that the LED lamp is very popular. According to the general light effect definition, the luminous efficiency of the LED lamp is not high, but because the spectrum of the LED lamp is almost totally concentrated in the visible light frequency range, the efficiency can reach 80% -90%, while the visible efficiency of the incandescent lamp with the same light effect is only 10% -20%, the power of the single LED lamp is generally 0.05-1W, and different requirements can be met through a clustering mode. As a new green product, the LED lamp is inevitably a trend of future development, and the 21 st century will enter a new lighting source era represented by the LED lamp.

The LED eye-protecting lamp widely applied at present is used as an educational illumination product, generally has higher requirements on the color rendering CRI and the spectrum approximation degree of light, and the prior art is difficult to realize due to the influence of all materials in a lamp optical module.

SUMMERY OF THE UTILITY MODEL

The following presents a simplified summary of embodiments of the invention in order to provide a basic understanding of some aspects of the invention. It should be understood that the following summary is not an exhaustive overview of the invention. It is not intended to identify key or critical elements of the invention or to delineate the scope of the invention. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is discussed later.

In order to solve the technical problem, the utility model provides a LED eye-protecting lamp thereby adds ruddiness LED lamp pearl and green glow LED lamp pearl through white light LED lamp pearl and improves lamps and lanterns spectrum quality comprehensively, makes this lamps and lanterns illumination quality obtain huge promotion, more is close natural spectrum, has higher CRI value and R9 value, lower color tolerance volume.

Specifically, the utility model discloses a LED eye-protecting lamp, which comprises a LED light-emitting component composed of an illumination unit and a light distribution unit, wherein the illumination unit and the light distribution unit are connected in parallel; the lighting unit comprises a white light control circuit and 1 or more groups of white light LED lamp groups, wherein each group of white light LED lamp group comprises one or more white light LED lamp beads; the light distribution unit comprises a red light control circuit, a red light LED lamp group, a green light control circuit and a green light LED lamp group, the red light control circuit and the red light LED lamp group are connected in series to form a red light color matching circuit, the green light control circuit and the green light LED lamp group are connected in series to form a green light color matching circuit, and the red light color matching circuit and the green light color matching circuit are connected in parallel.

The red LED lamp group comprises 1 or more red LED lamp beads, the green LED lamp group comprises 1 or more green LED lamp beads, and the number of the LED lamp beads (including the red LED lamp beads and the green LED lamp beads) of the light distribution unit is less than or equal to that of the white LED lamp beads of each white LED lamp group. Through practical inspection, the illumination quality of the LED eye-protection lamp arranged in the way is greatly improved, the LED eye-protection lamp is closer to a natural spectrum, and the LED eye-protection lamp has a higher CRI value, a higher R9 value and a lower color tolerance.

Furthermore, the white light control circuit comprises a first electronic switch and a first resistor, wherein the first electronic switch is connected in series with the first resistor and then connected to each group of white light LED lamp groups connected in parallel; the red light control circuit comprises a second electronic switch and a second resistor, the second electronic switch and the second resistor are connected with the red light LED lamp set after being connected in series, the green light control circuit comprises a third electronic switch and a third resistor, and the third electronic switch and the third resistor are connected with the green light LED lamp set after being connected in series.

Furthermore, in order to conveniently adjust the intensity of the red light, a fourth resistor is connected between the second resistor and the red light LED lamp set in series. Preferably, the fourth resistor is implemented by using an adjustable resistor.

Similarly, in order to conveniently adjust green light, a fifth resistor is connected between the third resistor and the green light LED lamp group in series. Preferably, the fifth resistor is realized by an adjustable resistor.

Further, the first electronic switch, the second electronic switch and the third electronic switch are implemented by Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET) tubes, a G pole of each MOS tube is connected to the signal input end, and an S pole of each MOS tube is grounded.

Furthermore, the MOS tube is realized by adopting an N-channel MOS tube with the model of 2N 7000.

By adopting the scheme, a small proportion of red and green LED lamp beads are used in the white light LED lamp string or the lamp panel to be supplemented into the white light luminous array, so that the light emitted by the whole lamp can keep high color rendering index >95 in different use environments, the excellent color tolerance is less than 5, and R1-R15 are high >90, so that the requirements of meeting the requirements of eye-protecting lamps and education lighting lamps and lanterns and more meeting the spectrum approximation degree are met. Meanwhile, the design of independently adjusting the red light intensity and the green light intensity is provided, the special requirements of different manufacturers or different scenes can be met, and the practicability is good.

The white light (containing blue light excitation and purple light excitation) of the invention has CRI of more than or equal to 95, R9 of more than or equal to 90, color temperature of 4000K + -200K, single lamp bead power of less than 0.5W, red light wavelength of 570-700nm, green light bare lamp bead of 495-510nm, and single power of less than 0.5W.

Drawings

The invention may be better understood by referring to the following description in conjunction with the accompanying drawings, in which like reference numerals are used to designate like or similar parts throughout the figures thereof. The accompanying drawings, which are incorporated in and form a part of this specification, illustrate preferred embodiments of the present invention and, together with the detailed description, serve to explain the principles and advantages of the invention. In the drawings:

fig. 1 is a schematic circuit diagram of an embodiment of the present invention;

fig. 2 is a schematic diagram of the position arrangement of the LED lamp beads according to the embodiment of the present invention;

fig. 3 is a chromaticity diagram CIE1931 of the LED eye-protecting lamp according to the embodiment of the present invention;

fig. 4 is a CIE1932 chromaticity diagram of the LED eye-protecting lamp according to the embodiment of the present invention.

Detailed Description

Embodiments of the present invention will be described below with reference to the accompanying drawings. Elements and features described in one drawing or one embodiment of the invention may be combined with elements and features shown in one or more other drawings or embodiments. It should be noted that the figures and descriptions have omitted, for the sake of clarity, the representation and description of components and processes that are not relevant to the present invention and known to those of ordinary skill in the art. In the description of the present invention, it is to be understood that the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The LED eye-protection lamp comprises an LED light-emitting component, wherein the LED light-emitting component is composed of a lighting unit and a light distribution unit which are connected in parallel. The lighting unit comprises a white light control circuit and 1 or more groups of white light LED lamp groups, wherein each group of white light LED lamp group comprises one or more white light LED lamp beads; the light distribution unit comprises a red light control circuit, a red light LED lamp group, a green light control circuit and a green light LED lamp group, the red light control circuit and the red light LED lamp group are connected in series to form a red light color matching circuit, the green light control circuit and the green light LED lamp group are connected in series to form a green light color matching circuit, and the red light color matching circuit and the green light color matching circuit are connected in parallel.

The red LED lamp bank comprises 1 or more red LED lamp beads, the green LED lamp bank comprises 1 or more green LED lamp beads, and the number of the LED lamp beads (including the red LED lamp beads and the green LED lamp beads) of the light distribution unit is less than or equal to the number of the white LED lamp beads of each white LED lamp bank. Through practical inspection, the illumination quality of the LED eye-protecting lamp under the arrangement is greatly improved, the LED eye-protecting lamp is closer to a natural spectrum, and the LED eye-protecting lamp has a higher CRI value, a higher R9 value and a lower color tolerance.

Referring to fig. 1, in the present embodiment, the LED lighting assembly includes a lighting unit formed by three white LED lamp sets and a light distribution unit formed by one red LED lamp set and one green LED lamp set. The white light control circuit comprises a connection MOS tube Q1 and a resistor R11, the MOS tube Q1 is connected with the resistor R11 in series and then connected with each group of white light LED lamp groups in parallel, the D pole of the MOS tube Q1 is connected with the resistor R11 in series, the G pole of the MOS tube Q1 is connected with a signal input end, and the S pole of the MOS tube Q1 is grounded. In this embodiment, each white light LED lamp group includes 8 white light LED lamp beads; the green light control circuit comprises an MOS (metal oxide semiconductor) tube Q2 and a resistor R3, the MOS tube Q2 and the resistor R3 are connected with the green light LED lamp bank after being connected in series, a D pole of the MOS tube Q2 is connected with the resistor R3 in series, a G pole of the MOS tube Q2 is connected to the signal input end, and an S pole of the MOS tube Q2 is grounded. In this embodiment, green glow LED banks contains 3 green glow LED lamp pearls. The red light control circuit comprises an MOS (metal oxide semiconductor) tube Q3 and a resistor R4, the MOS tube Q3 and the resistor R4 are connected with a red light LED lamp set after being connected in series, the D pole of the MOS tube Q3 is connected with the resistor R4 in series, the G pole of the MOS tube Q3 is connected to a signal input end, and the S pole of the MOS tube Q3 is grounded. In this embodiment, the red light LED banks contains 3 red light LED lamp pearls. In addition, in this embodiment, the MOS transistors Q1, Q2, and Q3 are all implemented by N-channel MOS transistors of type 2N 7000.

In addition, in order to conveniently adjust the intensity of red light, a resistor R1 is connected between the resistor R4 and the red light LED lamp group in series. Similarly, in order to conveniently adjust green light, a resistor R2 is connected between the resistor R3 and the green LED lamp group in series.

Referring to fig. 2, this LED eye-protecting lamp includes a circular casing, and LED light-emitting component is attached in week side of circular casing, and wherein, green glow LED lamp pearl and ruddiness LED lamp pearl alternate the setting in white light LED lamp pearl array.

In concrete implementation, the white light (including blue light excitation and purple light excitation) LED lamp pearl of this application requires as follows: the CRI of the naked white LED lamp bead is more than or equal to 95, R9 is more than or equal to 90, the color temperature is 4000K + -200K, and the power of a single lamp bead is within 0.5W; the wavelength of the naked red LED lamp beads is 570-700nm, and the power of a single lamp bead is within 0.5W; the wavelength of the naked green light LED lamp bead is 495-510nm, and the single power is within 0.5W. A small amount of red LED lamp beads and green LED lamp beads are added into a white light emitting array formed by a white light LED lamp group, so that the light emitted by the whole lamp can keep high color rendering index >95, excellent color tolerance <5 and high R1-R15>90 in different use environments, and the requirements of eye-protecting lamps and educational illumination lamps which are more in line with spectral approximation degrees and the special requirements of individual manufacturers are met.

Referring to the chromaticity diagrams CIE1931 and 1932 of fig. 3 and 4, it can be seen from the analysis of the chromaticity diagrams CIE1931 and 1932 that the color patches mainly occupying the chromatically developed regions are red and green between 4000K to 3000K of the color temperature line of white light.

As shown in fig. 3 and 4, a black line running from red (lower right) to blue (upper left) is called the black body radiation curve, and the numerical values indicated thereon are called the white color temperature line. In practical use, the eye protection color temperature below 4000K is observed to be the dominant red and green color blocks. Then, the high-quality illumination effect can be obtained only by scientifically matching the wavelengths of the red light and the green light and the light emitting proportion.

According to the technical analysis, in practical application, the red light and the green light are accurately mixed in the light-emitting lamp group, the color temperature can reach 3500K-4000K, the CRI is greater than 95, and the R9 is greater than 95, the color tolerance SDCM is less than 5, and the lamp can keep the illumination quality from large deviation in different illumination environments.

It should be emphasized that the term "comprises/comprising" when used herein, is taken to specify the presence of stated features, elements, steps or components, but does not preclude the presence or addition of one or more other features, elements, steps or components.

While the present invention has been disclosed above by the description of specific embodiments thereof, it should be understood that all of the embodiments and examples described above are illustrative and not restrictive. Various modifications, improvements or equivalents to the invention may be devised by those skilled in the art within the spirit and scope of the appended claims. Such modifications, improvements and equivalents are also intended to be included within the scope of the present invention.

Claims

1. An LED eye-protecting lamp is characterized in that: the LED light-emitting module comprises an LED light-emitting component consisting of a lighting unit and a light distribution unit, wherein the lighting unit and the light distribution unit are connected in parallel; the lighting unit comprises a white light control circuit and 1 or more groups of white light LED lamp groups, wherein each group of white light LED lamp group comprises one or more white light LED lamp beads; the light distribution unit comprises a red light control circuit, a red light LED lamp group, a green light control circuit and a green light LED lamp group, the red light control circuit and the red light LED lamp group are connected in series to form a red light color matching circuit, the green light control circuit and the green light LED lamp group are connected in series to form a green light color matching circuit, and the red light color matching circuit and the green light color matching circuit are connected in parallel.

2. The LED eye-protection lamp of claim 1, wherein: the red LED lamp group comprises 1 or more red LED lamp beads, the green LED lamp group comprises 1 or more green LED lamp beads, and the number of the LED lamp beads of the light distribution unit is less than or equal to that of the white LED lamp beads of each white LED lamp group.

3. The LED eye-protection lamp of claim 1, wherein: the white light control circuit comprises a first electronic switch and a first resistor, wherein the first electronic switch is connected in series with the first resistor and then connected to each group of white light LED lamp groups in parallel; the red light control circuit comprises a second electronic switch and a second resistor, the second electronic switch and the second resistor are connected with the red light LED lamp set after being connected in series, the green light control circuit comprises a third electronic switch and a third resistor, and the third electronic switch and the third resistor are connected with the green light LED lamp set after being connected in series.

4. The LED eye-protection lamp according to claim 3, wherein: and a fourth resistor is also connected between the second resistor and the red LED lamp group in series.

5. The LED eye-protection lamp according to claim 4, wherein: the fourth resistor is realized by adopting an adjustable resistor.

6. The LED eye-protection lamp according to claim 3, wherein: and a fifth resistor is connected between the third resistor and the green LED lamp group in series.

7. The LED eye-protection lamp according to claim 6, wherein: the fifth resistor is realized by adopting an adjustable resistor.

8. The LED eye-protection lamp of claim 3, wherein: the first electronic switch, the second electronic switch and the third electronic switch are realized by adopting MOS tubes, the G poles of the MOS tubes are connected to the signal input end, and the S poles of the MOS tubes are grounded.

9. The LED eye-protection lamp of claim 8, wherein: the MOS tube is realized by adopting an N-channel MOS tube with the model of 2N 7000.