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Example 3. Laser neon light
Lamps of two types
Similar to the one you bought in the store, this is a standard emitter. On the luminaire body in its lower part there is a bracket for mounting on the wall. In the upper part of the light emitter there is a notch for which it is attached to the bracket. To create a beam of light with an opening angle of about 60Â°, CENTER 2RC LED lamps (Fig. 8.3) with a round glass reflector are recommended.
Rice. 8-3. Light emitter for neon neon
The lamp package includes two lamps, each with its own power supply.
They use light-emitting diodes as a light source, which, due to their extremely small size, can create a luminous flux with the same power both in the near and far zones. We included all four lamps in one circuit and connected them with wires . The charge of each lamp flows from the power source connected to them according to the scheme already known to you and provides the specified power during the operating cycle. On fig. 8 and 8.4 shows a typical circuit for converting current to alternating current used in a conventional household electrical network.
I-D circuit (same voltage on all lamps)
At night, so that someone does not confuse the input signals of the lamps, an additional time relay is installed. When the input signals deviate from I-A (turn off) to I-B (turn on) on devices designed to control LEDs (lamps, lighting, etc.), a time relay is activated that turns off the operation of the lamps. Moreover, it must be in the off state for at least 3 seconds, and in the on state for at least 1 second.
Figure 8.6 shows a diagram of connecting the lamp to the mains. The lighting control device, unlike other devices, does not have additional inputs, but only one current input can be used.
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