, 
, or the side Camera Key to begin recording the video.
, 
, or the side Camera Key to stop recording. (Recording will stop automatically after a preset time, depending on your phone and its mass storage options.)
CRT Television specifications
Sprint Nextel was primarily known as a telecommunications company, focusing on mobile communication services. However, one of its less emphasized ventures was its involvement with CRT (Cathode Ray Tube) television technology. While CRT televisions have largely been phased out in favor of flat-screen technologies like LCD and OLED, they played a significant role in television history and provided key insights into imaging technologies.CRT televisions operate on a principle that has been around since the early 20th century. These devices utilize a vacuum tube to create images on the screen via an electron beam directed at a phosphorescent surface. As the beam sweeps across the screen, it illuminates tiny dots of phosphor in a mix of red, green, and blue, thereby producing vibrant colors and high-quality images.
One of the main features of CRT televisions is their ability to display deep blacks and a wide range of colors. This characteristic is largely attributed to the inherently high contrast ratio that CRT technology offers. CRTs can refresh images quickly, allowing for smooth motion and reducing the motion blur that is often present in older flat-screen technologies.
Another significant aspect of CRT technology is its broad viewing angle. Unlike modern LCDs, which can lose color accuracy and contrast when viewed from the side, CRT televisions maintain image integrity regardless of the viewer's angle. This makes them ideal for larger viewing areas and group settings.
While CRTs were heavy and bulky compared to their modern counterparts, they provided impressive picture quality relative to their size. They were less susceptible to issues like backlight bleeding and were capable of displaying true blacks, a major advantage in dark-adapted environments.
Sprint Nextel's involvement with television technology, while not as widely recognized, nevertheless intersects with the digital evolution that has transformed home entertainment. As digital broadcasting and the transition to LCD and LED screens took place, CRT televisions gradually became obsolete. However, their historical significance and the foundational technologies they introduced continue to inform the development of modern display technologies.
In summary, while not a flagship product of Sprint Nextel, CRT televisions offer a fascinating glimpse into an era defined by unique display technologies, characterized by their vivid color representation, deep blacks, wide viewing angles, and crucially, their impact on the evolution of how we experience visual media today.