ToolHuts

Praktische Tools für exaktes Arbeiten

Rechner für Leinwandgröße nach Raum

Finden Sie das größte Bild, das zu Ihrem Projektionsabstand, Wurfverhältnis und Ihrer nutzbaren Wandhöhe passt.

in
in
Usable diagonal137.7in
Image width120.0in
Image height67.5in
Estimated brightness35.6fL
Limiting factorThrow geometry

The optical image fits within the entered wall height.

Funktionsweise

How to use it: enter usable lens distance, throw ratio, wall height, aspect ratio, lumens and screen gain. The tool finds the optical image and reduces it if the wall height is tighter.

Formula. Image width = throw distance / throw ratio. Diagonal comes from aspect geometry. Estimated foot-lamberts = lumens x gain / screen area in square feet.

Example. At 144 inches and 1.20 throw ratio, image width is 120 inches; a 16:9 image is about 137.7 inches diagonally before wall-height limits.

Beispiel mit aktuellen Eingaben

Das Ergebnis oben verwendet genau diese Werte. Dieser Datensatz wird beim Drucken einbezogen, damit die Ausgabe mit den ursprünglichen Messungen geprüft werden kann.

Available lens-to-screen distance
144 in
Projector throw ratio
1.2
Usable wall height
72 in
Aspect width
16
Aspect height
9
Rated projector lumens
2000
Screen gain
1

Hauptergebnis: Usable diagonal: 137.7 in.

Vor Verwendung des Ergebnisses

  • Measure from the datum or reference edge described by this tool, and do not mix inside, outside and centerline dimensions.
  • Keep inputs in the displayed units and preserve more precision than the final cutting or purchasing tolerance requires.
  • When the result is close to a limit, verify it with a test piece, field measurement, manufacturer drawing or qualified project professional.

Einschränkungen

Rated lumens are not guaranteed calibrated lumens, and brightness changes with image mode, zoom, lamp age, ambient light and screen behavior. Check the projector's official zoom, lens-shift and installation limits.

Häufig gestellte Fragen

Why can wall height reduce diagonal?

The projected aspect ratio fixes width-to-height. If the calculated image is too tall, both dimensions must shrink together to avoid cropping.