Celluon magic cube Betriebsanweisung PDF herunterladen (Seite 8)

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light is too high, the keystroke recognition may become

too sensitive or a “hovering” eect may occur.

(Hovering: keystroke is recognized before your nger

touches the projection surface.)

Therefore, it is necessary to compensate for dierences in

nger characteristics or operating environment, and this

can be accomplished by adjusting the sensitivity of your

projection keyboard.

Given the same amount of reected infrared light, in-

creasing the sensitivity will produce the eect of a higher

amount of reection, whereas decreasing the sensitivity

will produce the eect of a lower amount of reection.

With the sensitivity set to its minimum value, repeatedly

press a key that is relatively far from the sensor (Spacebar,

CTRL, etc.) to increase the sensitivity. As soon as your

keystroke is recognized, stop adjusting the sensitivity and

set the nal setting value to one or two notches above

original setting.

Conditions to Avoid:

1. Avoid direct sunlight

2. Avoid low color temperature light source, such as tung-

sten, halogen, or incandescent lamp is used.

3. Avoid uneven or irregular surfaces. Place the product on

at surfaces.

4. Avoid a table or surface that is as transparent or reec-

tive as glass or mirror.

5. Avoid placing any objects within the space between the

main unit and the laser projected keyboard layout.

Because this product uses infrared rays, strong infrared

radiation from direct or reected sunlight or from tungsten

(halogen or incandescent) lighting may cause operating error.

Note

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Celluon magic cube Betriebsanweisung Seite 8