CN211831250U

CN211831250U - System for controlling illumination intensity of LED table lamp and table lamp

Info

Publication number: CN211831250U
Application number: CN201922501751.2U
Authority: CN
Inventors: 刘贤金; 郑永生; 侯宇; 曾照明; 肖国伟
Original assignee: APT Electronics Co Ltd
Current assignee: APT Electronics Co Ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-10-30
Anticipated expiration: 2029-12-31

Abstract

The utility model relates to a portable lighting field specifically discloses a system for controlling illumination intensity of LED table lamp, include: warm light LEDs, cold light LEDs, red light LEDs, blue light LEDs, green light LEDs; the color detection probe is used for detecting the color of the paper and sending a paper color signal, and the paper color signal is used for indicating the color of the paper; and the dimming driver is respectively connected with the color detection probe and the LED and is used for receiving the color signal of the paper to output the driving current of the LED with warm light, cold light, red light, blue light and green light. The utility model discloses set up the colour that colour test probe detected the paper, the paper can absorb the photochromic the same rather than the colour, and after the driver of adjusting luminance received the colour signal of paper, the drive current of the LED of each light of output made the light that each LED sent compensate by the absorptive light of paper, and the spectrum that the paper reverberation corresponds is close sunlight spectrum saturation, and then prevents to lead to eyes excessively tired because of the glare that excessive reflection or diffuse reflection arouse, protection eyes.

Description

System for controlling illumination intensity of LED table lamp and table lamp

Technical Field

The utility model relates to a portable illumination field, in particular to a system, desk lamp for controlling the illumination intensity of LED desk lamp.

Background

With the progress of society, the LED illuminating table lamp is deeply popular with reading enthusiasts and students due to the characteristics of energy conservation, mobility, adjustable swing arm and the like, and becomes a preferred product of a desktop reading auxiliary light source. At present, reading materials on the market are more and more diversified, and even if the reading materials are paper reading materials, the colors of the reading materials are different. The absorption and reflection of the paper with different colors to light are different, so that the irradiation intensity of each light system required when the reflected light on the reading material is close to the spectrum saturation of sunlight is different, but the color system and the light intensity of the LED table lamp in the market are fixed and unchanged during illumination, when the fixed light of the LED lamp is not suitable for certain types of paper reading materials, the glare caused by the excessive reflection or the diffuse reflection of the paper causes the eye fatigue, and the eyesight is seriously affected, particularly the eyesight of teenagers and children.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of prior art, the utility model provides a system for controlling illumination intensity of LED table lamp, this system can be according to the colour output of paper and the colour system luminous intensity of its adaptation, makes the last reverberation of paper reading be close sunlight spectrum saturation to alleviate the visual fatigue because of excessive reflection or diffuse reflection's the cause during reading, protect eyes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a system for controlling the illumination intensity of an LED desk lamp, comprising:

the LEDs comprise a warm light LED, a cold light LED, a red light LED, a blue light LED and a green light LED;

the color detection probe is used for detecting the color of the paper and generating a paper color signal, and the paper color signal is used for indicating the color of the paper;

and the dimming driver is respectively connected with the color detection probe and the LED and is used for receiving the color signal of the paper to output the driving current of the warm light LED, the cold light LED, the red light LED, the blue light LED and the green light LED.

Preferably, the color detection probe includes:

the emission probe is used for emitting a standard white light beam to the surface of the paper for multiple times, and the standard white light beam is vertical to the surface of the paper;

and the receiving probe is used for receiving the reflected light of each standard white light beam on the surface of the paper to detect the color of the paper.

Preferably, the color detection probe further includes:

and the fixing seat is used for installing the transmitting probe and the receiving probe.

Preferably, the color detection probe further comprises a hemispherical lens, the hemispherical lens is mounted on the fixed seat, and the transmitting probe and the receiving probe are located in the hemispherical lens.

Preferably, the color detection probe is internally provided with:

and the filter circuit is connected with the receiving probe and is used for filtering noise in the reflected light.

Preferably, the method further comprises the following steps:

and the power amplification circuit is connected between the dimming driver and the LED and is used for amplifying the driving current.

Preferably, the LED color detection device further comprises a PCB base, and the LED and the color detection probe are installed on the PCB base.

Preferably, the red light LED, the blue light LED and the green light LED are arranged in the middle of the PCB base, the warm light LED and the cold light LED are arranged at two ends of the PCB base, and the warm light LED and the cold light LED are arranged at intervals; the color detection probe is installed at the end of the PCB base.

The embodiment further discloses an LED table lamp comprising the system.

Preferably, the LED table lamp comprises a supporting seat, a bendable supporting rod and a lampshade; one end of the supporting rod is fixed on the supporting seat, and the other end of the supporting rod is connected with the lampshade; the PCB base is installed on the inner top of the lampshade.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a set up colour test probe, colour test probe can detect the colour of paper, the paper can absorb the photochromic the same rather than the colour, adjust luminance the driver and receive behind the colour signal of paper, output warm light LED, cold light LED, ruddiness LED, blue light LED, green glow LED's drive current, make warm light LED, cold light LED, ruddiness LED, red light LED, blue light LED, the light energy that green glow LED sent compensaties by the absorbed light of paper and warm light LED, cold light LED, ruddiness LED, red light LED, blue light LED, green glow LED mixes the synthetic light irradiation of light fitting when on the paper, the spectrum that the paper reverberation corresponds is close sunlight spectrum saturation, and then prevent that the glare that arouses because of excessive reflection or diffuse reflection leads to eyes is too tired, protect eyes.

Drawings

The present invention will now be further described with reference to the accompanying drawings and specific embodiments:

FIG. 1 is a block diagram of the system of the present invention;

FIG. 2 is a schematic structural view of the color detection probe of the present invention;

fig. 3 is a schematic structural diagram of the PCB base of the present invention;

fig. 4 is a schematic structural diagram of the desk lamp of the present invention.

In the figure:

1. dimming driver, 3, PCB base, 31, colour detect probe, 32, warm light LED, 33, cold light LED, 34, ruddiness LED, 35, green glow LED, 36, blue light LED, 311, emission probe, 312, receiving probe, 313, hemisphere lens, 4, paper, 5, bracing piece, 6, supporting seat, 7, lamp shade.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example one

As shown in fig. 1, the present embodiment discloses a system for controlling the illumination intensity of an LED table lamp, which includes:

the LEDs comprise a warm light LED32, a cold light LED33, a red light LED34, a blue light LED36 and a green light LED 35;

a color detection probe 31 for detecting a color of the sheet 4 and generating a sheet 4 color signal, the sheet 4 color signal indicating the color of the sheet 4;

and the dimming driver 1 is respectively connected with the color detection probe 31 and the LED and is used for receiving color signals of the paper 4 to output driving currents of the warm light LED32, the cold light LED33, the red light LED34, the red light LED34, the blue light LED36 and the green light LED 35.

In the embodiment, by arranging the color detection probe 31, the color detection probe 31 can detect the color of the paper 4, the paper 4 can absorb the light color same as the color of the paper, and the dimming driver 1 receives the color signal of the paper 4 and then outputs the driving current of the warm light LED32, the cold light LED33, the red light LED34, the red light LED34, the blue light LED36 and the green light LED35, so that when the light energy emitted by the warm light LED32, the cold light LED33, the red light LED34, the red light LED34, the blue light LED36 and the green light LED35 and the light absorbed by the paper 4 and the light synthesized by mixing the warm light LED32, the cold light LED33, the red light LED34, the red light LED34, the blue light LED36 and the green light LED35 irradiate on the paper 4, the spectrum corresponding to the spectrum of the reflected light of the paper 4 approaches the saturation of the sunlight, thereby preventing the eye from being over.

In this embodiment, the color detection probe 31 includes a transmitting probe 311, a receiving probe 312, a fixing base, and a hemispherical lens 313; the transmitting probe 311, the receiving probe 312 and the hemispherical lens 313 are arranged on the fixed seat, and the transmitting probe 311 and the receiving probe 312 are positioned in the hemispherical lens 313; the emission probe 311 is used for emitting a standard white light beam to the surface of the paper 4 for a plurality of times, and the standard white light beam is perpendicular to the surface of the paper; the receiving probe 312 is used to receive the reflected light of each standard white light beam on the surface of the sheet to detect the color of the sheet.

If the color of the paper 4 is light yellow, the color detection probe 31 emits a yellow color signal after detecting that the color of the paper 4 is light yellow, and when the dimming driver 1 receives the yellow color signal, the driving currents of the warm light LED32, the cold light LED33, the red light LED34, the red light LED34, the blue light LED36 and the green light LED35 are output, so that the lights emitted by the warm light LED32, the cold light LED33, the red light LED34, the red light LED34 and the blue light LED36 are mixed to generate a part of yellow light which is absorbed by the light yellow paper 4 in standard white light, and when the lights emitted by the warm light LED32, the cold light LED33, the red light LED34, the red light LED34 and the blue light LED36 are illuminated on the paper 4, the spectrum corresponding to the light reflected by the.

In this embodiment, still include PCB base 3, LED and colour detect probe 31 are installed and are set up red light LED34, blue light LED36, green glow LED35 on PCB base 3 in the middle part of PCB base 3, and warm light LED32, cold light LED33 set up the both ends at PCB base 3, and warm light LED32 and cold light LED33 interval set up.

In the embodiment, the red light LED34, the blue light LED36 and the green light LED35 are arranged in the middle of the PCB base 3, so that the uniformity of the red light, the blue light and the green light which are irradiated on each position of the paper 4 is the same, and the red light, the blue light and the green light at each position of the paper 4 are mixed according to the same proportion to generate the light absorbed by the paper 4, so as to realize the light compensation of the paper 4; warm light LED32, cold light LED33 interval set up for the intensity of the warm light of hitting on each position of paper 4 and the cold light mixed light is the same, has guaranteed that the light intensity on each position of paper 4 is the same promptly, guarantees the comfort of vision, reduces eye fatigue.

In this embodiment, a filter circuit is disposed in the color detection probe 31, and the filter circuit is connected to the receiving probe 312 and is used for filtering noise in the reflected light;

in this embodiment, the LED driving circuit further includes a power amplifying circuit, and the power amplifying circuit is connected between the dimming driver 1 and the LED for amplifying the driving current.

The filter circuit, the power amplifier circuit of this embodiment are prior art, the utility model discloses do not relate to the improvement to filter circuit, power amplifier circuit.

Example two

As shown in fig. 4, the present embodiment discloses an LED desk lamp, which includes the system according to the first embodiment; the LED desk lamp comprises a supporting seat 6, a bendable supporting rod 6 and a lampshade 7; one end of the support rod 6 is fixed on the support seat 6, and the other end is connected with the lampshade 7; the PCB base is mounted on the inner top of the lamp housing 7.

The present invention is not limited to the above embodiment, and various modifications and variations of the present invention are intended to be included within the scope of the claims and the equivalent technology if they do not depart from the spirit and scope of the present invention.

Claims

1. A system for controlling the illumination intensity of an LED table lamp, comprising:

2. The system of claim 1, wherein the color detection probe comprises:

3. The system of claim 2, wherein the color detection probe further comprises:

4. The system of claim 3, wherein the color detection probe further comprises a hemispherical lens, the hemispherical lens is mounted on the fixed base, and the transmitting probe and the receiving probe are located in the hemispherical lens.

5. The system of claim 2, wherein the color detection probe has disposed therein:

6. The system of claim 1, further comprising:

7. The system of claim 1, further comprising a PCB base on which the LED and the color detection probe are mounted.

8. The system of claim 7, wherein the red LED, the blue LED and the green LED are disposed in the middle of the PCB base, the warm LED and the cool LED are disposed at two ends of the PCB base, and the warm LED and the cool LED are disposed at intervals; the color detection probe is installed at the end of the PCB base.

9. LED desk lamp, characterized in that it comprises a system according to any one of claims 7 or 8.

10. The LED table lamp of claim 9, wherein the LED table lamp comprises a support base, a bendable support rod and a lampshade; one end of the supporting rod is fixed on the supporting seat, and the other end of the supporting rod is connected with the lampshade; the PCB base is installed on the inner top of the lampshade.