User manual

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2. Important instructions
2.1 Selection of the projector
Please note the following when selecting the projector:
1. The projector is mounted in normal position (table top). The projector must be attached to the mounting
plate. Because of this, you should use projectors that have mounting points on the base plate.
2. The lens of the projector should be positioned to the center of the adjustable mirror for optimum results.
Please consider this when using projectors with lenses mounted in extreme off center positions of the
systems. The slimmer the projector, the easier the middle axis can be set with the position of the
projector or the small, adjustable mirror.
3. Please check where to plug in the power cord and signal cables on the projector. The dimensions
provided by the manufacturer usually refer to the housing only. Mounted cables and, if applicable,
interchangeable lenses may increase the dimensions by a few centimeters.
4. Ventilation openings for in- and out-flowing cooling air must not be blocked.
5. Using projectors with telephoto lenses may cause image distortion due to design-based sharpness
problems. The effects might differ from lens to lens. It is therefore recommended not to use the
ProFLECT II i in combination with such lenses without prior testing.
2.2 Planning and mounting
Please consider the following points when planning and mounting the ProFLECT II i ceiling mirror:
1. The center axis of the projector should be in the center of the screen; image adjustments to the side are
only possible to a limited extent. As the lens position is not necessarily in the center of the ProFLECT II
i, it might be necessary to mount the ceiling mirror excentric to the screen. For patterned ceilings it is
recommended to place/ mount the ceiling projection mirror in one ceiling element and to plan for the
position of the screen to be centered on the central axis of the image.
2. The distance to the upper edge of the image must not be too large. A keystone distortion of the image
could otherwise result.
3. For most projectors, the image size can be adjusted using the zoom function. But it should be ensured
that the adjusted image size can be projected on both mirrors without losses. It is suggested that you
choose a mounting location further away from the screen (long focal width).
4. If the ceiling mirror must be mounted into a laterally closed ceiling opening, ensure that no heat can
accumulate from the exhaust air of the projector. Please provide for additional openings and/or
ventilation.