CN202149400U

CN202149400U - LED (light-emitting diode) film and video lamp with adjustable light-emitting angles and luminance

Info

Publication number: CN202149400U
Application number: CN201120192901U
Authority: CN
Inventors: 黄坚
Original assignee: YUYAO FOTODIOX PHOTO EQUIPMENT CO Ltd
Current assignee: YUYAO FOTODIOX PHOTO EQUIPMENT CO Ltd
Priority date: 2011-06-04
Filing date: 2011-06-04
Publication date: 2012-02-22
Anticipated expiration: 2021-06-04

Abstract

The utility model aims at providing an LED (light-emitting diode) film and video lamp with adjustable light-emitting angles and luminance, which is simple in structure, convenient to control, and not obvious in change of color temperatures along with the luminance. In order to achieve the aims, the LED film and video lamp adopts the technical scheme that the LED film and video lamp with the adjustable light-emitting angles and luminance comprises a singlechip connected with a power module; an adjusting potential meter is connected on the singlechip; and the output end of the singlechip is connected with an LED panel by an LED driver. By adopting the technical scheme, the LED film and video lamp with the adjustable light-emitting angles and luminance drives an LED lamp on the LED panel by the LED driver controlled by the singlechip, so that no matter how to adjust the angles or the brightness of the film and video lamp, the color temperature does not change obviously.

Description

Lighting angle and adjustable brightness LED video display lamp

Technical field

The utility model relates to pump housing technology, relates in particular to lighting angle and adjustable brightness LED video display lamp.

Background technology

The video display lamp is meant in stage performance and movies-making, in order to throw light on and to reach certain light effects and one type of light fixture using.It helps to show the content of program, embodies author's creation intention, sets off artistic environment by contrast, and makes spectators, photography camera obtain correct color perception and exposure.Different with other light fixtures is that this type of light fixture has the function that changes beam spread angle and soft degree of light and color mostly, and is equipped with special entities such as focusing, diaphragm, colour filter frame.Stage video display lamp is made up of light source, optics, mechanical part and electric component.1. light source.There are incandescent lamp, halogen tungsten lamp and metal halide lamp etc. multiple, use the LED lamp now usually.2. optics.According to instructions for uses such as the shape of light source luminescent body and lighting, imaging, effects, constitute optical system by reflector, field lens condenser, object lens etc.3. mechanical part.Go along with sb. to guard him and be in the light, heat radiation, effect such as heat insulation, and can guarantee the reliable and stable of optical system and the various functions of performance, comprise the amplification of light beam angle and receive little, to the focusing of common object lens or variable focus objective, electrical machinery transmission of effect device or the like.4. electric component.Comprise voltage-stabilized power supply, light source annex trigger, ballast, rheostat etc., light modulator and to infinitely variable speeds electric wiring of the driving motor control of effect device or the like.

The video display lamp uses in the film studio, studio or scene on the spot; " spectators " are removable and can make the video camera or the video camera of technical finesse, and close shot is many, and houselights makes the effect of pick-up tube or film correct exposure in addition except that the art effect is arranged; Particularly good for color rendition; The colour temperature of under light, clapping indoor setting requirement light is about 5000K, and colour rendering index is more than 90, and it is more than 5000K and 80 that daylight is clapped outdoor scene down.

Traditional light adjusting circuit employing simulated mode as shown in Figure 1 realizes light modulation, and its shortcoming is that the light modulation brightness range is smaller, especially uses in LED lamp field, and such mode is along with the variation colour temperature of LED brightness can squint to some extent.To this, we need seek a kind of new mode and be used to regulate LED video display lamp.

The utility model content

The purpose of the utility model provides lighting angle and adjustable brightness LED video display lamp, and is simple in structure, and control is convenient, and colour temperature changes not obvious with brightness.

In order to reach said purpose; The technical scheme that the utility model adopted is lighting angle and adjustable brightness LED video display lamp; Comprise the single-chip microcomputer that connects power module, be connected with regulator potentiometer on the said single-chip microcomputer, the single-chip microcomputer output drives through LED and connects the LED panel.

Preferably, said LED panel is provided with the LED lamp that at least three rows are provided with by different angles.Can reach the effect of light modulation like this through the different LED lamp of switch.

Preferably, the discharging angle of said LED face onboard led lamp is 30 degree and 60 degree, puts the LED with a kind of angle at a distance from discharging.Can regulate the WBR angle of video display lamp like this through the lamp of switch different angles.

Preferably, said power module comprises the AC adapter that connects civil power, and AC adapter connects pressure stabilization filter.Such structure can be adjusted voltage to suitable numerical value, guarantees efficient energy-saving.

Preferably, it is two that said LED drives, and the discharging angle is the LED lamp of 30 degree on the connection LED panel, and another is connected, and the discharging angle is the LED lamp of 60 degree on the LED panel.Drive the LED lamp that connects different conditions through different LED, it is more convenient reliable to make whole device use.

Owing to adopted said technical scheme, the utility model lighting angle and adjustable brightness LED video display lamp drive the LED lamp on the driving LED panel through monolithic processor controlled LED, adjust the angle or the brightness of video display lamp so in any case, and colour temperature changes not obvious.

Description of drawings

Below in conjunction with accompanying drawing the utility model is described further:

Fig. 1 is that the video display lamp is regulated control circuit figure in the prior art.

Fig. 2 is the utility model lighting angle and adjustable brightness LED video display lamp system block diagram.

Fig. 3 lists intention for the utility model lighting angle and adjustable brightness LED video display lamp LED face onboard led lamp bank.

The specific embodiment

As shown in Figure 2, lighting angle and adjustable brightness LED video display lamp comprise the single-chip microcomputer 2 that connects power module 1, it is characterized in that: be connected with regulator potentiometer 4 on the said single-chip microcomputer 2, single-chip microcomputer 2 outputs drive 6 through LED and connect LED panel 7.Said LED panel 7 is provided with the LED lamp that at least three rows are provided with by different angles.The discharging angle of said LED face onboard led lamp is 30 degree and 60 degree, puts the LED with a kind of angle at a distance from discharging.Said power module 1 comprises the AC adapter 3 that connects civil power, and AC adapter 3 connects pressure stabilization filter 5.It is two that said LED drives 6, and the discharging angle is the LED lamp of 30 degree on the connection LED panel 7, and another is connected, and the discharging angle is the LED lamp of 60 degree on the LED panel 7.

During work, the civil power of 220V converts the 5V direct current to through AC adapter 3, and the 5V direct current is leaded up to pressure stabilization filter 5 voltage stabilizings and become the 5V power supply to give single-chip microcomputer 2 and peripheral cell power supply, and another road of 5V direct current drives 6 circuit supplies for two groups of LED.

System adopts 8 single-chip microcomputer S3F9488XZZ of Samsung; Single-chip microcomputer 2 output " LED (30 degree) control PWM " mouthful with " LED (60 degree) control PWM " mouth controls two groups of LED respectively and drives 6, when rotating regulator potentiometer 4, realizes the adjusting of two kinds of angle LED brightness and lighting angle.

When the colour temperature Principles of Regulation that go up the design of LED lamp on the LED panel 7 were not opened for opening 60 degree angle LED lamps when 30 degree angle LED lamps, the lighting angle of this moment was 30 degree, and when 60 degree LED lamps were opened 30 degree LED lamps and do not opened, the lighting angle of this moment was 60 to spend; When 30 degree LED lamps are the brightness maximum; 60 degree LED lamps lighting angle from secretly become to the bright mistake that slowly increases brightness can increase along with the blast of 60 degree LED lamps, when 60 degree LED lamps are increased to maximum, keeps 60 degree LED lamps maximums this moment; 30 degree LED lamps from bright to secretly slowly reducing brightness; This moment, lighting angle increased along with the reduction brightness of 30 degree LED lamps, and maximum up to 60 degree LED lamps, 30 degree LED lamps knock out; This moment, lighting angle be maximum 60 degree, thereby had realized that lighting angle spends the adjusting of spending to 60 from 30.The principle of regulating brightness does; When potentiometer is adjusted to a certain brightness position; No matter spending the maximum brightnesses of LED lamp, 30 degree LED lamps or 60 can not surpass the pairing brightness in this position; Be adjusted to the centre position such as potentiometer, that is in the process of angular adjustment, and the maximum brightness of 60 degree LED lamps or 30 degree LED lamps can not surpass 1/2 when the brightest.In any case adjustment angle and brightness like this, significant change all can not take place in colour temperature.

The above is merely the specific embodiment of the utility model; But the architectural feature of the utility model is not limited thereto; Any those skilled in the art is in the field of the utility model, and variation of being done or modification all are encompassed among the claim of the utility model.

Claims

1. lighting angle and adjustable brightness LED video display lamp comprise the single-chip microcomputer (2) that connects power module (1), it is characterized in that: be connected with regulator potentiometer (4) on the said single-chip microcomputer (2), single-chip microcomputer (2) output drives (6) through LED and connects LED panel (7).

2. lighting angle as claimed in claim 1 and adjustable brightness LED video display lamp is characterized in that: said LED panel (7) is provided with the LED lamp that at least three rows are provided with by different angles.

3. lighting angle as claimed in claim 2 and adjustable brightness LED video display lamp is characterized in that: the discharging angle that said LED panel (7) is gone up the LED lamp is 30 degree and 60 degree, puts the LED with a kind of angle at a distance from discharging.

4. lighting angle as claimed in claim 1 and adjustable brightness LED video display lamp is characterized in that: said power module (1) comprises the AC adapter (3) that connects civil power, and AC adapter (3) connects pressure stabilization filter (5).

5. lighting angle as claimed in claim 3 and adjustable brightness LED video display lamp; It is characterized in that: it is two that said LED drives (6); It is the LED lamp of 30 degree that a connection LED panel (7) is gone up the discharging angle, and another is connected LED panel (7) and upward discharges the LED lamp that angle is 60 degree.