television - Shadow masks and aperture grilles | Britannica
Aperture Grille
Twitter 上的 Kayin:"Also gosh look at the mask. Cromaclear was closer to Aperture grille but had some advantages but less pixel clarity. Still hard to tell the difference between the two from
Cast Iron Medieval Gothic Door Window Glass Bullion Aperture | Etsy
File:Aperture grille.jpg - Wikimedia Commons
Aperture grille Scanlines on Sony Trinitron KV-M1400K - YouTube