Eye protection desk lamp with light-emitting diode (LED) light source

A technology of LED light source and light source, which is applied in the direction of light source, electric light source, electric lamp circuit layout, etc., can solve the problems of inconspicuous protection of human eye health, consideration of human health from the perspective of photobiology, etc., and achieve novel structure and benefit to health , the effect of promoting metabolic function

Active Publication Date: 2012-07-11
ZHEJIANG SMART LIGHTING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These lights have no obvious protective effect on human eye health, and do not consider human health from the perspective of photobiology.

Method used

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  • Eye protection desk lamp with light-emitting diode (LED) light source
  • Eye protection desk lamp with light-emitting diode (LED) light source
  • Eye protection desk lamp with light-emitting diode (LED) light source

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Embodiment 1: a kind of eye protection desk lamp that adopts LED light source, as figure 1 and figure 2 As shown, it includes a base 8, a lampshade 6, a connector 7 between the two ends of the base 8 and the lampshade 6, and a regulator 5, and also includes a luminous body 1 arranged in the lampshade 6, and a driving power source electrically connected to the luminous body 1. 2, and a control device 3 for controlling the driving power. Wherein the driving power supply 2 and the control device 3 can be in the base 8 , the connecting body 7 or the lampshade 6 , and the regulator 5 is installed on the base 8 .

[0039] The illuminant 1 is an LED combination light source, at least including a first sub-light source and a second sub-light source, the C / P value of the light emitted by the first sub-light source is greater than 2.5, and the C / P value of the light emitted by the second sub-light source is less than 2.5. The control device 3 outputs at least two kinds of sign...

Embodiment 2

[0045] Embodiment 2: An eye-protecting desk lamp using an LED light source, the LED illuminant 1 further includes a third sub-light source, and the third sub-light source is a red light source with a peak emission wavelength of 660nm-690nm.

[0046] Specifically, the first sub-light source and the second sub-light source are white LEDs, and the third sub-light source has a C / P value of zero and an emission wavelength of 670 nm is preferred. In order to achieve the C / P value required by the combined light source to imitate the natural light effect, the C / P value of the first sub-light source and the second sub-light source must be relatively high, that is, the relative spectral power (intensity) within the range of 400nm to 520nm higher; the other is relatively low (or even zero).

[0047] Such as image 3 As shown, the lampshade 6 is a light-transmitting surface at least on the front side and the bottom surface, and the third sub-light source includes two light emitting modul...

Embodiment 3

[0048] Embodiment 3: as Figure 4 As shown, the adjuster 5 disposed on the base 8 includes a switch button 5-1, a mode selection switch 5-2 and / or a third sub-light source adjustment switch 5-3. The switch button 5-1, the mode selection switch 5-2 and the third sub-light source adjustment switch 5-3 are all electrically connected with the control device 3 .

[0049] The control device 3 converts the control signal input by the manual control mode selection switch 5-2 or the third sub-light source adjustment switch 5-3 into a pulse width modulation signal and outputs it to the drive power supply 2 through the pulse width modulation method, and converts the C / P value and the intensity of light are converted into the electrical signal duty ratio output corresponding to the corresponding sub-light source; the driving power supply 2 controls the light intensity of the corresponding sub-light source according to the input duty ratio signal, and then controls the C of the correspondi...

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PUM

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Abstract

The invention relates to an eye protection desk lamp with a light-emitting diode (LED) light source. The eye protection desk lamp with the LED light source comprises a base, a lamp shade, a connecting body of which the two ends are respectively connected with the base and the lamp shade, a light-emitting body which is arranged in the lamp shade, a driving power supply which is electrically connected with the light-emitting body, and a control device for controlling the driving power supply. The light-emitting body is an LED combined light source and at least comprises a first sub-light source and a second sub-light source, a circadian rhythm-photopic vision (C / P) value of first sub-light source emergent light is more than 2.5, the C / P value of second sub-light source emergent light is less than 2.5, and the control device controls the C / P value of light-emitting light source emergent light to be between the C / P value of the first sub-light source emergent light and the C / P value of the second sub-light source emergent light or to be equal to one of the C / P values. The eye protection desk lamp with the LED light source has the substantial characteristics that: by controlling the intensity of the light of all the sub-light sources of the combined light source, the final total C / P value of the combined light source and the intensity of the light are controlled to change along with the variation of time, the effect of simulating natural light is achieved, and the eye protection desk lamp with the LED light source adapts to the physiological cycle variation of human bodies.

Description

technical field [0001] The invention relates to an eye-protecting desk lamp using an LED light source. Background technique [0002] In daily life, the jet lag of passengers during global voyages, the incompatibility of night shift workers during shift changes, the day and night of astronauts in space, etc., all prove the physiological discomfort caused by the lack of normal natural light exposure of the human body. [0003] The use of LED light sources for lighting has many advantages, such as energy saving, environmental protection, long life, fast response, resistance to switch shocks, and easy light distribution. Recently, due to the improvement of the light efficiency of LED light sources and the rapid decline in prices And accelerate the penetration into the field of indoor lighting. However, GaN-based white LED light sources are small and bright, and contain a strong blue light spectrum. The pros and cons of LED light sources to human health are also being paid more...

Claims

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Application Information

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IPC IPC(8): H05B37/02
Inventor 王建平牟同升
Owner ZHEJIANG SMART LIGHTING TECH
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