February 2019
Spotlight Summary by Pierre-Alexandre Blanche
Design of confocal off-axis two-mirror system for head-up display
Head up displays allow drivers or pilots to see information such as speed, direction, and altitude projected directly into their field of view without having to look down at the instrument panel. Since the operators do not have to move their gaze from the road/runway and accommodate their vision, head up displays help to increase situational awareness and improve safety.
In current designs, the optical system for a head up display is generally off-axis so it can be fitted inside a dashboard. This creates aberrations that need to be compensated by the introduction of freeform optics components that can be expensive to manufacture. In their study, Kum-Ho Kim and Sung-Chan Park present a new configuration composed of two off-axis hyperboloid mirrors that does not require any freeform optics to limit the aberration. This new design should be simpler to manufacture and can lead to more compact and cheaper head up display systems.
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In current designs, the optical system for a head up display is generally off-axis so it can be fitted inside a dashboard. This creates aberrations that need to be compensated by the introduction of freeform optics components that can be expensive to manufacture. In their study, Kum-Ho Kim and Sung-Chan Park present a new configuration composed of two off-axis hyperboloid mirrors that does not require any freeform optics to limit the aberration. This new design should be simpler to manufacture and can lead to more compact and cheaper head up display systems.
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Article Information
Design of confocal off-axis two-mirror system for head-up display
Kum-Ho Kim and Sung-Chan Park
Appl. Opt. 58(3) 677-683 (2019) View: Abstract | HTML | PDF