Refractive-reflective optical system for realizing an ultra-thin rear projector

Refractive-reflective optical system for realizing an ultra-thin rear projector

— This paper presents a new optical system used in an ultra‐thin rear projector with a 1500‐mm diagonal size and 260‐mm depth. A refractive‐reflective optical system was developed to achieve a large projection angle of 136° with a small optical distortion of 0.1%. The optics consists of a convex asp...

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Veröffentlicht in:Journal of the Society for Information Display 2003-12, Vol.11 (4), p.677-683
Hauptverfasser: Shikama, Shinsuke, Suzuki, Hiroshi, Endo, Takao, Teramoto, Kohei
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Aspherical mirror
Display
DLP
DMD
Electronics
Exact sciences and technology
hybrid Fresnel screen
rear projection display
refractive-reflective optics
TIR
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Beschreibung
Zusammenfassung:— This paper presents a new optical system used in an ultra‐thin rear projector with a 1500‐mm diagonal size and 260‐mm depth. A refractive‐reflective optical system was developed to achieve a large projection angle of 136° with a small optical distortion of 0.1%. The optics consists of a convex aspherical mirror and a refractive lens. In addition, a new Fresnel screen composed of hybrid blades of refractive‐TIR (total internal reflection) elements was developed to attain good uniformity of brightness and color within the image area.
ISSN:1071-0922
1938-3657
DOI:10.1889/1.1824257