Screens and projectors

Cinema and short-throw

Public cinema and a home room differ in throw, isolation and pitch, not in cloth colour.

A public screen is not a villa

A commercial screen is wide. Row pitch follows the length of the film and movement during the show. Sound is a cinema system, not a shelf speaker. At home the count is small, neighbours or bedrooms constrain isolation, and a short throw reduces the room you need. Copying one model onto the other makes either a home room that leaks or a cinema with lecture seats.

An acoustically transparent screen sits in front of the speakers in some cinemas so sound comes from behind the image. That is a decision with the sound designer, not with decor. A speaker beside the screen while the seat is on axis separates the voice from the mouth. The clause names the speaker relative to the centre of the image.

Final figures come from the drawing, the current manufacturer datasheet and a test of the room. This page is a design method, not a performance certificate and not a price.

The isolation that belongs with the screen

A film is low-frequency energy. An absorbent panel inside the room does not stop it reaching the next apartment. Isolation is a double wall, a heavy door or a separated floor, as the study requires, signed by an acoustic consultant and not by the seat supplier. We write this so a Hollywood seat is not bought and then a neighbour complains.

Coordination sequence

The screen is locked with the seat, not after it. The nearest used seat sets the fineness asked of the datasheet. The furthest seat sets the size of the content. House light that remains decides whether a brightness quoted in darkness is usable.

The service side is drawn: behind the wall or from the hall. Heat behind the modules may enter the next room. A projector beam is checked against eye height so the last row’s head does not cut the image.

We do not publish lumens or pixel pitch as an office number. The figure is copied from a dated datasheet after measurement. A screen does not replace acoustic isolation or reverberation treatment.

This clause goes into the bill of quantities, with the signatory and the date of the test after installation: Room class: public cinema, large format, or home.

This clause goes into the bill of quantities, with the signatory and the date of the test after installation: Speaker position relative to the centre of the image.

This clause goes into the bill of quantities, with the signatory and the date of the test after installation: Isolation from the next room is a clause separate from the cloth.

Mistakes that repeat

A lecture seat in a two-hour cinema.
A domestic projector in a hall whose lights cannot be killed.

Questions about this type

Which catalogue seats coordinate with a cinema?

Hollywood, Megaseat and Smart, under the names and photographs as published. The choice between them is pitch and model number, not a darker picture. Factory numbers stay in the bill.

Catalogue seats coordinated with this type

The seats shown are catalogue families in their own photographs, chosen with this type on the drawing, not from a separate picture.