How to make a simple photography light box

LED electronic light box production steps:

(1)

The aluminum-plastic plate size is 122×244. Calculate the size and use it rationally and do not waste it

.Use a wallpaper knife to cut to the appropriate size, go to the art department to engrave the pattern the customer needs and use sticky notes to paste it on the aluminum-plastic board. (I engraved the hollow characters and used instant spray paint. The effect is better than that of sticky notes. Post-it notes will fade after a year in the sun.) It is more economical to use the hollow characters next time.

(2) According to the font and size of the words, use a pen to mark the distance between the center of the words. The distance between the pattern lights should be 1.5-2cm. The distance between the lights must be 3cm to be flexibly controlled. The denser the effect, the better. good. It can also be made into hollow characters for better effect. (Pay attention to the distance when crossing when marking points)

(3) Use a handheld rotary or engraving machine to drill holes, and clean the burrs after drilling.

(4)

Install the lights according to the pattern (+-

) (+-

) for later connection. The lights must be installed in place.

(5) After installation, apply half of the glue on one side of the lamp bead to facilitate connection. The picture below shows the connection status of the running lights. The corners of the lamp can be held together but they must be secure, and it is best to finish soldering them.

(6) The LED lights in each word or pattern are connected in series. Each circuit must have no more than 115 red lights, no more than 73 blue lights, and no more than 80 green lights. When the characters or patterns are too large to exceed the number used, add another loop.

(7) Words and words or patterns and patterns are connected in parallel.

(8) Anti-static work must be done during the production process.

(9

) Note that all LED pins must not be short-circuited.

(10)

Measure the current of each circuit to ensure that the current is 15-20mA

(11) Select the number of resistors according to the number of patterned lamp beads. Solder the lead wire of the resistor into a yellow wax tube and string it between any two LEDs in the circuit.

(12) Led welding time cannot exceed 3 seconds. (It is best to use a constant temperature soldering iron with a grounding wire)

(13) Connect the controller and watch the production effect. The light box display is normally sealed with a glue stick and then assembled.

(14) The three-in-one (five-way) controller outputs DC 220v. The red color is positive. Connect the positive lead of the lamp bead to red, the negative lead of the light box to yellow, and the three green wires are the negative poles. One stick per color. White is the always-on negative electrode.

(15) Drill 1-2 8mm holes for water leakage at the lower end of the light box frame. Drill holes on the edge of the aluminum-plastic plate groove on the side of the aluminum material according to the size of the light box and fix the aluminum-plastic plate with screws to prevent panel deformation. These are the frame eyes under the light box, two of which are waterproof eyes and the other two are connected to the fixed bracket. These are the frame eyes on the side of the light box to fix the aluminum-plastic plate to prevent deformation of the frame and corners, and the screws used to fix the side of the frame.

(16) Before installation, a 48-hour aging test (let the light box light up and run for 48 hours) is required to test the reliability of the light box.

(17) The long horn of a single LED is the positive pole, and the short leg is the negative pole. Look at the chip inside the lamp bead with the LED connected. The larger one is the negative electrode and the smaller one is the positive electrode. Compare and observe with a single LED.

(18) For the number of lamp bead resistor ratios, refer to the table in the Taobao controller picture (click to enlarge to view).

(19) It is easier to purchase and contact after bookmarking the store. There are light box kits at different prices in the store for you to make. I recommend you buy the kit with an aluminum frame. (The aluminum material has been cut for easy assembly)

(20) The controller outputs DC 220v. Safety must be paid attention to during the production process. Operation is not possible while power is on.

(21) When making a light box, install the aluminum-plastic plate with printed characters into the frame and drill holes vertically to imitate the form of a bench drill.