2. Installation guide lines

What about ambient light ?

Theambient light level of any room is made up of direct or indirect sunlight and the light fixtures in the room. Theamount of ambient
lightwill determine how bright the image will appear. So, avoid direct light on the screen. Windowsthat face the screen should be
coveredby opaque drapery while the set is being viewed. Itis des irableto install the projection system in a room whose wa llsand
floorare of non-reflecting material. The use of recessed ceiling lightsand a method of dimming those lights to an acceptable level
isalso important. Toomuch ambient light will ‘wash out’ of the projected image. This appears as less contrast between the darkest
andlightest parts of the image. Withbigger screens, the ‘wash out’ becomes more important. As a general rule, darken the room to
thepoint where there is just sufficient light to read or write comfortably. Spot lighting is desirable for illuminating small areas so that
interferencew iththe screen is minimal.

Which screen type ?

Thereare two major categories of screens used for projection equipment. Those used for front projected images and those for rear
projectionapplications. Screensare rated by how much light they reflect (or transmit in the case of rear projection systems) given a
determinedamount of light projected toward them. The‘GAIN’ of a screen is the term used. Frontand rear screens are both rated
interms of gain. The gain of screens range from a white matte screen with a gain of 1 (x1) to a brushed aluminized screen with a
gainof 10 (x10) or more. Thechoice between higher and lower gain screens is largely a m atterof personalpreference and another
consideration calledthe Viewing angle. In considering the type of screen to choose, determine where the viewers will be located
and go for the highest gain screen possible. A high gain screen will provide a brighter picture but reduce the viewing angle. For
moreinformation about s creens, contact your local screen supplier.

Image size

Theprojector is designed for projecting an image size with a screenwidth from 1.00m (3.3ft) to 6.00m (19.7ft) with an aspect ratio of
4to3.

Image retention

Image retention can affect LCD projectors, in extreme cases, permanent “burn” can occur if still/repetitive images are left on the
screenfor long periods of time. Such damage to the panels is NOT covered by warranty.
Pleaseensure thatthe following precautions are taken to avoid this phenomenon :
1. Use a screensaver (thatmov es)
2. Periodicallychange/alter any background images on the desktop
3. Turnoff the projector when not in use.
8R59770134 ID LR-6 27/05/2011