These systems are on commercial aircraft. These systems do not fade or require the high voltages of first generation systems.
the projection unit) and the systems/data to be displayed and generates the imagery and symbology to be displayed by the projection unit. The computer provides the interface between the HUD (i.e. In some optical layouts combiners may also have a curved surface to refocus the image from the projector. Combiners may have special coatings that reflect the monochromatic light projected onto it from the projector unit while allowing all other wavelengths of light to pass through. The combiner is typically an angled flat piece of glass (a beam splitter) located directly in front of the viewer, that redirects the projected image from projector in such a way as to see the field of view and the projected infinity image at the same time. the focal point is perceived to be at infinity. This setup (a design that has been around since the invention of the reflector sight in 1900) produces an image where the light is collimated, i.e. The projection unit in a typical HUD is an optical collimator setup: a convex lens or concave mirror with a cathode-ray tube, light emitting diode display, or liquid crystal display at its focus. Most power supplies (such as your cell phone charger) continue to draw power and generate heat even when not attached to a device.HUD mounted in a PZL TS-11 Iskra jet trainer aircraft with a glass plate combiner and a convex collimating lens just below itĪ typical HUD contains three primary components: a projector unit, a combiner, and a video generation computer. Plug all your electronics into one surge protector, so you can easily switch them all off when you leave the room or go to sleep. To further reduce power consumption, turn off computing and peripheral devices that are not being used or being used for an extended period of time such as overnight. For example, you can create a power scheme for playing music CDs that shuts off your hard drive and monitor immediately, but never puts your system into standby mode. System standby/sleep: After 30 minutes or lessĪdvanced users may wish to establish multiple power schemes to address different usage models. Turn off hard drives/hard disk sleep: 15 minutes or less
Monitor/display sleep: Turn off after 15 minutes or less Some web sites or pages that have active banners and or animated advertisements will not allow the computer to sleep on its own and must be closed, or the computer put manually into a sleep state.Įnabled power management to place your monitor, hard drives and computer into a low-power "sleep" mode after a period of inactivity.
Many popular computer games and other third party software packages that run in the background will not allow the computer to go to sleep - even if they are paused or the active window is minimized. Being connected may limit your system's ability to enter standby mode. Instead, set your computer to turn off the monitor first, then go into standby mode after a longer period of inactivity.ĭisconnect your Virtual Private Network (VPN) when not actively using your corporate network. In fact, more often than not, a screen saver not only will draw power for the monitor, but also will keep the CPU from shutting down. Continue reading to see what else you can do to improve your green computing.
What you get is software with an environmental footprint of zero while still staying up-to-date.ĭigital downloads are one part of the larger trend in making our lives - both professional and personal - cleaner, more efficient, and better. Digital downloads are the "green" answer to demanding fewer resources for your computer's needs.