External LED displays and screens. Species and varieties.

External LED displays and screens. Companies offer outdoor LED screens designed to provide optimal display of your content, day or night, regardless of the climatic conditions of the deployment environment. Including the latest technologies (DIP or SMD), these screens provide excellent image quality thanks to a wide viewing angle, intense brightness, including when exposed to direct sunlight and a wide range of action – From 30 ° C to + 60 ° C. This type of device is ideal for urban displays, controlled by boards in the form of advertising masts. External transparent systems for the mediation.

External LED displays and screens. Many of our customers place them at their outlets. Event organizers, especially sports enthusiasts, appreciate LED screens for a powerful communication tool that can attract a wide audience to effective multimedia content. For your project of deploying outdoor LED screens, we offer our experience in supplying suitable equipment at the best price, as well as our on-site installation and maintenance services: pouring “cubes” of concrete for fastening the mast or arch, designing a safe and standard metal mounting structure as Set up and troubleshoot a street LED display as soon as possible, etc.

External optical systems. Lamp, lamp and light source. To distinguish between the terms “lamp”, “lamp” and “light source”, as examples of LED devices, one should refer to recent standards (energy labeling of electric lamps and luminaires) and (eco-design requirements for lamps, LED lamps and related devices):

  • “Light” means a device that distributes, filters or converts light from one or more lamps and which contains all the parts that are necessary to support, fix and protect the lamps, and, if necessary, the circuit helps with the necessary means to connect them to a power source .
  • A “lamp” is defined as a unit whose effectiveness can be evaluated independently and which consists of one or more light sources. It may include additional components necessary to start, power, stable operation of the device or distribution, filtering and conversion of optical radiation, if they cannot be removed without damaging the lamp.
  • The term “light source” means a surface or object that has been designed to produce primarily visible optical radiation through energy conversion. The term “visible” refers to wavelengths from 380 to 780 nm. In this context, “light” may include one or more “light sources”, which, in turn, may be equipped with one or more light sources.

Lamps. From a physical point of view, all lamp technologies convert electrical energy into visible light. High-pressure discharge lamps have been the dominant technology in street lighting for decades. As mentioned in the previous section, LED technology replaces all other types of lamps, especially in new street lighting systems. High pressure sodium lamps (HPS) remain an alternative, especially for certain lighting applications (e.g. on highways). Their high performance outweighs poor color rendering, which is not a problem in this application.

In LED lamps, light is generated by the so-called electroluminescence. In fact, a “light emitting diode” (LED) is a pn junction that emits light when activated. The LED chip is made of a semiconductor material that is doped with voids to create a p-n junction. As in other diodes, current flows from the p-side (anode) to the n-side (cathode). Charge carriers (electrons and holes) come from electrodes with different voltages to the connection. When an electron collides with a hole, it falls to a lower energy level and releases energy in the form of a photon.

External LED displays and screens. Specification. Integrated Ø6 mm LED luminaire for snap-on mounting with super-flat membrane heads with a surface coating. Surface matting provides good on / off contrast and high light transmission. Specification LED indicator with a mounting diameter of Ø6 mm for snap-on mounting with a super-flat lens head. The matte surface provides clear contrast and high light transmission.