LED par Pavillion than the traditional par light, with more rich color effects, mixed color effects, color mixing effect of three-color lamp up to 16.7 million kinds, LED par light classification: According to the use of points, a commercial lighting, Also known as spotlights, the main role of lighting, high-power lamp beads, lamp beads commonly used in a single color, smaller, often used in shopping malls, hotels, hotels, fountains and other places square. Two stage lighting class, the main play lighting, color change, create a stage atmosphere, the size of the power lamp beads, lamp beads commonly used colors are red, green, blue, white. Often used in theatrical performances, wedding ceremonies, exhibitions and other moments.

 

LED Par Light type

 

The first classification is based on the use of light is divided into commercial lighting and stage lighting of two types, these two types are mainly from the role of lighting. Including commercial lighting and spotlights, this lamp is mainly based on the power of light-based beads, lamp beads commonly used color is relatively simple, and smaller. Generally used for shopping malls, hotels, hotels and other places. The stage lighting class, according to the stage needs of the lamp beads for color, change the power of lamp beads. And this type of lamp beads are generally red, green, blue and other colors of light, are generally used for stage shows, weddings, exhibitions and other events. As for the role of stage lights, you have to say another. The second category is divided according to the appearance of the lamp, where the appearance is mainly refers to the par light shell material, there are generally aluminum shell, cast aluminum shell and waterproof shell three types. The third is in accordance with the classification of par lamp power, par lamp power is generally 24W, 36W, 54W, 108W, 162W several types. These are all about the type of LED Par light introduced, you want to buy a friend can read this article after the led par lamp have a understanding.

 

problem:

Specifically, in the performance, the need for white light to do the main light, led Par light just dyeing effect; or led Par light group as the main light, back and forth to change color. The reason for asking this question is: 1 In the past, when we did a party in the lecture hall, the photographer had been asked not to play a single light, or find out the photos can not see 2 In large-scale performances, such as Spring Festival Gala or China's sound scene, Lights, but at least a certain range of actors are white. So many led, where reflected in the role?

 

LED stage lighting, there are many kinds of If you provide specific what type of lamp to answer you ,, LED stage lighting white is RGB three colors when all bright out, RG is yellow RB is violet GB Navy RGB is White light. There is also a stage not only LED but also spotlight fill light you should be clear.

 

Questioning:

 

Well, I use the Par Pa lamp is programmed with the control station, all lights in accordance with the pre-set to go light, a variety of colors in accordance with the principle of the three primary colors can be hit. Like the Spring Festival gala, outdoor art shows, the performers are white, led just make up the role of light. However, in the actual performance, including me and other colleagues, are led rack up, such as 40 led together to change the color of the lights, and then about 10 heat source rack in front of the stage, to fill light. The light is played out with color, the customer has been very satisfied. But the photographer quit. That in the end the photographer asked too much, or we dimming inappropriate

 

To answer:

Fill light is used to see the actor's face above the stage, the whole stage RGB chaos flash can not see the actor photographer certainly not willing, and photography requirements are very high. Fill light must be a separate dedicated lighting. RGB is an auxiliary stage of the fill light that is supporting the actor above the stage host.

 

54 LED Par light control principle

 

Stage lighting has gone through several generations of development and has evolved from a traditional high-voltage, high-energy-driven Par light into a low-voltage, low-power LED lamp. The following: LED54 Par Pa lamp as an example to briefly introduce the control principle of the stage lighting and simple production.

 

LED Par Panel There are 4 color LED, respectively, red, blue, green and white. Light superposition rule is red + green is yellow, green + blue is blue, red + blue is magenta, red + green + blue is white. Therefore, without regard to the brightness of each color LED, this combination of LED par light can emit red, green, blue, magenta, yellow, cyan, white, seven colors of light.

 

LED common LED par light used in the LED is 10mm diameter in-line LED, but when I experiment hand only 3mm blue LED, the difference between the performance after the article.

 

Driver is mainly driven by constant current way. Because if it is constant voltage drive then need to add current limiting resistor, so the efficiency will be greatly reduced. Therefore, the driver is mainly to do a meet the requirements of the current source.

 

I first tried the op amp method. OP07 is the op amp used, and OP07 is used as the voltage follower. The load (LED) is connected to the feedback loop. After the current is greater than 24mA, the op amp's non-inverting and inverting voltage ＆#118alues ＆#8203;＆#8203;are inconsistent. When the output current reaches More than 30 milliamps, the inverting voltage is already close to zero, while the output current is no longer rising.

 

The measured output current can reach up to 35mA, led the voltage across the 3.35V, available single led power of 115mW. Multiplied by 54 later, the total LED power is 6.2W.