CN102595699A

CN102595699A - Light emitting diode (LED) desk lamp

Info

Publication number: CN102595699A
Application number: CN201110462339XA
Authority: CN
Inventors: 张斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-12-29
Filing date: 2011-12-29
Publication date: 2012-07-18

Abstract

The invention discloses a light emitting diode (LED) desk lamp with a function of treating myopia and amblyopia. The LED desk lamp comprises high-brightness lighting LEDs and high-brightness flashy LEDs. An LED control circuit comprises a singlechip voltage stabilization circuit, a singlechip circuit, a program memory, a working mode selection key and a power amplification circuit. A connection relation of the parts is that: an external low-voltage direct current power supply supplies power to the whole circuit; the singlechip voltage stabilization circuit is connected with the singlechip circuit and outputs 5V stable direct current voltage; the singlechip voltage stabilization circuit is connected with the program memory and outputs 5V stable direct current voltage; the program memory is connected with a singlechip data line and an address line; the output interface of a singlechip is connected with the power amplification circuit; the power amplification circuit is connected with the high-brightness lighting LEDs and the high-brightness flashy LEDs; and the working mode selection key is connected with the singlechip.

Description

A kind of LED desk lamp

(1) technical field

The present invention relates to the LED light fixture, particularly a kind of LED light fixture with myopia, amblyopia treatment function.

(2) technical background

Adolescent myopia is the disease that the accommodative excess anxiety causes, is called accommodative myopia again.The key of treatment is the regulative mechanism that is to improve eye, promptly improves the easypro function that contracts of ciliary muscle.Can use the treatment of after image method, utilize pupillary light reflex to bring out accommodation reflex cure etc.

The treatment of after image method is the method for a kind of traditional amblyopia, myopia; It is the after image that retina according to the people forms after by strong illumination; The inhibition that can be eyeground macular area (eye thing sensitizing range) obtains elimination in various degree; Training simultaneously improves the visual function of macular area central fovea, makes paracentral fixation progressively transfer central fixation to.Determined curative effect, remarkable is treated in after image ruling by law.

LED desk lamp function is simple now, has only illumination functions, not treatment myopia, amblyopia function; But its single LED luminosity is big, uses plurality of LEDs that illumination is provided, in conjunction with the method for above-mentioned treatment myopia, amblyopia; Improve control circuit, can make the LED desk lamp have treatment myopia, amblyopia function.

(3) summary of the invention

The present invention is the deficiency that overcomes the LED desk lamp, and a kind of LED desk lamp with treatment myopia, amblyopia function is provided.

The objective of the invention is to realize through following technical scheme:

Multi-functional LED desk lamp is by the LED desk lamp socket, and movable rod, base, LED control circuit are formed.Movable rod changes the LED desk lamp socket greater than 90 degree bendings between illumination and two kinds of operating states of treatment eyesight.The LED desk lamp socket comprises: highlight illumination LED, high brightness flicker LED.Illumination LED---under Single-chip Controlling with the LED of lighting system work; Flicker LED---under the Single-chip Controlling with the LED of flashing mode work.

The LED control circuit is a single chip machine controlling circuit, comprising: single-chip microcomputer voltage stabilizing circuit, single chip circuit, program storage, mode of operation selection key, power amplification circuit.The annexation of LED control circuit each several part is: the DC power supply of outside low-voltage is the entire circuit power supply; The single-chip microcomputer voltage stabilizing circuit connects single chip circuit and exports 5 volts stable DC voltage; Single-chip microcomputer voltage stabilizing circuit linker holder is also exported 5 volts stable DC voltage; Program storage is connected with single-chip data line, address wire; The output interface of single-chip microcomputer is connected with power amplification circuit, and power amplification circuit is connected with highlight illumination LED, high brightness flicker LED, and the mode of operation selection key is connected with single-chip microcomputer.The level signal power amplification circuit power of single-chip microcomputer output is amplified the corresponding LED of rear drive.Finally reach treatment myopia, amblyopia and illumination purposes.The DC power supply of outside low-voltage is to be lower than 24 volts DC power supply, and the CPU of LED control circuit is a single-chip microcomputer.

The operation principle of LED desk lamp is such, and when normal illumination was used, illumination LED provided light source as illumination LED; When realizing that after image ruling by law is treated, rule flicker under the Single-chip Controlling of flicker LED in the LED control circuit reaches treatment myopia, amblyopia function, and other LED does not participate in work; Because this desk lamp works in the open environment,, reach illumination and the effect of treating so each LED all is high brightness LEDs.

The invention has the beneficial effects as follows: multi-functional LED desk lamp not only can provide normal illumination, and after with kopiopia, multi-functional LED desk lamp can provide the service of treatment myopia, amblyopia easily for the user, achieve many things at one stroke.

(4) description of drawings

Fig. 1 is the close up view of facing of desk lamp socket of the present invention

Fig. 2 is the front view of desk lamp of the present invention when illumination condition

Fig. 3 is the front view of desk lamp of the present invention when treatment myopia, amblyopia state

Fig. 4 is that the circuit of desk lamp LED control circuit of the present invention is formed and the annexation block diagram

Fig. 5 is the circuit theory diagrams of desk lamp LED control circuit of the present invention

1. flicker LED, 2. working forms selection key, 3. desk lamp socket, 4. movable rod, 5. bases among the figure.

(5) embodiment

Accompanying drawing 4 is that the circuit of LED control circuit is formed and the annexation block diagram, and accompanying drawing 5 is LED control circuit schematic diagrams, the concrete detailed description as follows:

Accompanying drawing 5 included circuit are: the DC power supply of outside low-voltage, positive 12 volts power supply are the entire circuit power supply.The single-chip microcomputer voltage stabilizing circuit---form by U1, C1, C2.

Single chip circuit, program storage---form by U2, C3, C4, C5, Y1 and pull-up resistor Rs.Single-chip microcomputer uses the 89C51 type in this circuit, and there is the program storage of 2KB its inside, so the outside holder of not designing program separately again of single-chip microcomputer.Power amplifier---by Q0, R0, Q1, R1, Q2, R2, Q3, R3, Q4, R4, Q5, R5, Q6, R6 form.

LED---be made up of D1, D2, except that D1, D2, other all is illumination LEDs in flicker, and power amplifier Q0 drives the flicker LED of D1, D2 formation in other words, and other power amplifier all is to drive illumination LED.Key switch S1 is the working forms selection key.

The course of work of LED control circuit:

After DC power supply 12 volt direct currents of outside low-voltage are circuit supply, after the voltage stabilizing through U1, C1, C2, obtain 5 volts DC power supply; Be single-chip microcomputer U2 power supply, single-chip microcomputer U2 is according to the program work in the program storage, for example: count 0x01 immediately at P1 delivery outlet output hexadecimal; Then P10 output high level draws driven effect pipe Q0 on the high level process resistance R s; Q0 conducting, 12 volts power supply are passed through current-limiting resistance R0, Q0, are D1, D2 power supply, D1, the luminous work of D2; P1 delivery outlet output hexadecimal is counted 0x00 immediately, P10 output low level then, and D1, D2 extinguish, and corresponding delay moves in circles, and desk lamp realizes that the after image method treats like this.In like manner, when P1 output hexadecimal was counted 0XFF immediately, all LED lighted, and desk lamp is realized illumination functions.

Below be the program of the C language used of the present invention:

Claims

1. a LED desk lamp is by the LED desk lamp socket, and movable rod, base, LED control circuit are formed, and it is characterized in that the LED desk lamp socket comprises: highlight illumination LED, high brightness flicker LED, the LED control circuit is a single chip machine controlling circuit.

2. LED desk lamp according to claim 1 is characterized in that the LED control circuit comprises: single-chip microcomputer voltage stabilizing circuit, single chip circuit, program storage, mode of operation selection key, power amplification circuit.

3. LED desk lamp according to claim 1; The annexation that it is characterized in that LED control circuit each several part is: the DC power supply of outside low-voltage is the entire circuit power supply; The single-chip microcomputer voltage stabilizing circuit connects single chip circuit and exports 5 volts stable DC voltage; Single-chip microcomputer voltage stabilizing circuit linker holder is also exported 5 volts stable DC voltage, and program storage is connected with single-chip data line, address wire, and the output interface of single-chip microcomputer is connected with power amplification circuit; Power amplification circuit is connected with highlight illumination LED, high brightness flicker LED, and the mode of operation selection key is connected with single-chip microcomputer.

4. LED desk lamp according to claim 1, the DC power supply that it is characterized in that outside low-voltage are to be lower than 24 volts DC power supply, and the CPU of LED control circuit is a single-chip microcomputer.