bóngmonitor

Bóng monitor, also known as monitor balls or monitor spheres, refers to a type of spherical or near-spherical display device. These devices are distinct from traditional flat-panel displays and were more common in earlier eras of computing and display technology. The primary characteristic of a bóng monitor is its curved, often hemispherical, screen that projects images outwards.

The technology behind bóng monitors typically involved cathode ray tubes (CRTs). In a CRT bóng monitor, an electron beam is fired from an electron gun at the back of the tube and is directed by magnetic fields to scan across the phosphorescent coating on the inside of the glass screen. This scanning process causes the phosphor to emit light, creating the image. The curved nature of the glass was often a byproduct of the manufacturing process for CRT tubes, which were inherently easier to produce in curved shapes.

Bóng monitors offered certain advantages, including potentially wider viewing angles compared to some early flat-panel technologies. However, they also suffered from drawbacks such as significant bulk, weight, and susceptibility to distortion, particularly at the edges of the screen. The curvature could also lead to geometric distortions in the image.

While largely superseded by modern flat-panel displays like LCD, LED, and OLED screens due to their superior form factor, image quality, and energy efficiency, bóng monitors represent an important stage in the evolution of display technology. They are now considered vintage or retro technology, often collected by enthusiasts or found in historical displays.