Glossary
DLP® technology For each individual pixel, DLP® (Digital Light Processing) projectors use tiny mirrors that are mounted on the Digital micro mirror Device (DLP® chip) and tilt in response to an electric signal. A DLP® chip's micro mirrors are mounted on tiny hinges that enable them to tilt either towards the light source in a DLP® projection system (ON) or away from it (OFF). This creates a light or dark pixel on the projection surface. To generate a colour picture,
Eco mode Eco mode is an environmentally friendly function designed to save energy.
This function is useful in situations where the full amount of brightness offered by the projector is not needed. Reducing brightness by around 20% decreases power consumption, minimises fan noise and significantly prolongs lamp life.
Freeze This function allows the user to freeze the projected image at any time, for example to modify the contents of a presentation without the audience noticing and then show it at a later stage.
Image resolution The number of pixels, horizontally and vertically, defines the resolution. It is expressed as width x height. The principal image resolution formats are
and vertical number of pixels also indicates the resolution's aspect ratio.
Inorganic panel Inorganic LCD panels ensure striking picture quality, because they allow an even more natural colour reproduction. The particularly deep black value and the related contrast ratio guarantee impressive images. The reduced border thickness of the individual pixels increases the light output, which boosts image brightness. Inorganic LCD panels absorb fewer UV rays, thereby significantly increasing their service life.
Interchangeable lenses Interchangeable lenses are available as an option for many projectors. They provide a particularly flexible response to the presentation environment and requirements.
Keystone correction Keystone is a trapezoidal distortion of an image caused by projecting at a steep vertical or horizontal angle. The electronics behind modern data and video projectors can correct this distortion to produce a rectangular image display. The Keystone correction function can be set automatically or manually, or it can be disabled.
Lens shift Projecting an image vertically and horizontally causes trapezoidal distortion of the image. The Lens shift function allows the position of the lens to be varied both vertically and horizontally to correct the distortion. The resolution and image geometry are fully retained.
The projector can thus be positioned flexibly without sacrificing quality.
Mechanical shutter The mechanical shutter moves between the prism block and lens for a specific amount of time. This is very effective at preventing residual light from being projected on- screen during presentations and events.
MyLogo function Give your presentations an unique and professional appearance from the very beginning. Instead of a blue background screen appearing between presentations or when the projector is turned on, you can set individual logos or images to display, and secure this setting using a PIN code.
Network
meetings can use the moderator function to take turns giving their presentations on the same projector using their own notebooks and the
Optical zoom Lens function that allows the imagesize to be continuously adjusted at a given distance. The zoom function enables a highly flexible adjustment of the projector to existing room conditions. Many projectors can be equipped with motorised zoom lenses.
QuaDrive® An additional fourth LCD panel called the Color Control Device (CCD) separately controls the amount of yellow light in the projected image and increases the displayed colour space by up to 20%. This allows for even more realistic and vivid colour tones, especially in the red and green ranges. The result is more vibrant colours and higher image brightness.
Rear projection The projector is installed behind the screen. It projects the image to a special rear projection surface. A setting in the projector's on- screen menu allows you to choose reversed image display. Light beams are prevented from being broken up in the presentation room, thereby eliminating potential problems.
Remote Control Code With this code, remote controls can be uniquely assigned to a specific projector. Even projectors that are right next to each other can be controlled easily and directly
with this function. This eliminates interference from the simultaneous operation of multiple projectors or other technical devices.
Security features Security features ensure that the projector cannot be used or removed without authorisation. They provide valuable protection wherever numerous individuals have access to the device – in the public sector, universities, schools or the business world. SANYO projectors offer the following security features:
•When the Audio Alarm function is active,
a loud alarm is emitted immediately if the projector is moved without authorisation.
•The Key Lock function disables the keys on the remote control or the buttons on the projector housing.
•The PIN Code Lock secures the projector with a PIN so that it cannot be used without authorisation.
•Security chains of up to 11 mm in diameter can be attached to the security bar.
•The Kensington lock mechanism permits the simple use of Kensington locks.
•The conspicuous orange housing makes the projectors easily identifiable.
Signal types Depending on the user's needs, a projector can be connected to various image sources, for example DVD player, AV/TV receiver or PC. The following signals can be connected: Composite (FBAS),
Throw ratio The throw ratio specifies the ratio between the projection distance and image width; this depends on the lens being used. Example: With a throw ratio of 2 : 1, for a projection distance of 4 m the image width is
2 m. Since most lenses are equipped with an optical zoom function, the throw ratio is given in a range such as
Warp & Blending The Warp & Blending Board allows presentations on curved projection surfaces, as well as seamless
22 | 23 |
