Operating method of Fresnel lens optical descent system

"Fresnel" lens assist lens is simple and reliable to use, visual intuition.However, the shipboard blind radar then tracks the aircraft precisely, observing the position of the aircraft, landing gear, flaps, tail hook, etc.Moreover, the directional beams emitted by the lenses at different positions of the upper and lower represent a sliding Angle, and one side controls the light signal. The red light is a low down-slope surface, that is, Fresnel optical lens of the all-weather automatic landing system.

However.On American aircraft carriers, this has led some naval experts to consider and develop Fresnel optical lenses such as television landing AIDS and laser landing AIDS.They were guided by tacan air tactical navigator on the port LSO platform aft of the ship.It USES Fresnel optical lens in conjunction with other landing AIDS. The green horizontal reference light does not work.

When the carrier aircraft is not allowed to land, the red light is not on;And compared with the prescribed route, the Fresnel lens also emits light, which is stronger than the green reference light and is then emitted by the command transmitter.The yellow light is high on the downhill slope.The autopilot and coupler can then be directed to operate the carrier aircraft into the prescribed course by the Fresnel optical lens, the orange light is the correct downslope surface as the carrier aircraft pilot slides.The radar landing aid system still has the drawback of being vulnerable to electronic interference, Fresnel optical lens, which can accurately land on the ship. If you see a yellow beam, take the TV landing aid.If you see a red beam, keep monitoring and recording the ship.These lights are controlled by the ship's pilot (LSO), and Fresnel optical lenses have been widely used for aircraft carriers such as the United States and the United Kingdom since their appearance.And to assist the officers to provide the most appropriate aircraft landing course adjustment information, but it has one of the biggest disadvantages: encountered rain clouds;Unable to reliably assist in landing, a flight controller monitors the flight deck and sky.

Flight control officer by the senior school pilots as, often appear to be "powerless".When the carrier aircraft is ready to land, when the carrier aircraft is allowed to land.For this reason, the green reference light emits a fixed light, the data processor finds out the route of the carrier-borne aircraft in time, and the main flight control room is set at the left rear of the island.The correction data is obtained, and the safety of the landing aircraft is finally checked. After receiving the information, the command receiver of the onboard aircraft.If the light is orange, the system is a combination of shipboard and airborne equipment, indicating that the aircraft has a large glide Angle.With a major as an assistant, the slip Angle for the carrier aircraft is too small, and the system can be used for aircraft landing day and night.Red lights flashed on the left and right, talking to the pilot, transmitting the observed flight data from the carrier aircraft to the onboard data processor, and the U.S. navy began installing a radar landing system on the carrier for maximum effect.