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Common
- What does ANSI lumen mean?
- Is light power the decisive buying factor?
- What does the contrast ratio mean?
- What is DLP™ and what are the benefits of this technology?
- What information does the projector resolution provide?
- What does ANSI lumen mean?
The brightness or light power of the projection image is specified in lumen, which is determined using a measuring technique devised by the American National Standards Institute (ANSI). The higher this value, the greater the brightness of the projection generated.
- Is light power the decisive buying factor?
The ANSI lumen value is a criterion that should be taken into consideration when deciding to purchase a Toshiba projector. With the business projectors in particular, the brightness of the device should be matched to the local conditions such as the size and lighting conditions in the intended location.
With home cinema projectors, this factor is less significant as home cinema is best enjoyed in a darkened environment in order to fully enjoy the extraordinary contrast and vibrant colours of Toshiba DLP™ projectors.
- What does the contrast ratio mean?
The contrast ratio on a projector is the difference between the darkest and lightest point on the display. The consequence of a weak contrast ratio is that black is projected as dark grey. A good contrast ratio means that black is presented without light, that is, as purely black. Toshiba projectors use DLP™ technology to achieve excellent contrast values.
- What is DLP™ and what are the benefits of this technology?
DLP™ (Digital Light Processing) technology developed by Texas Instruments uses a DMD (digital mirror device) chip in which over 1 million tiny mirrors are arranged as a grid. Each mirror can be electrostatically tilted. Changing the tilting frequency and tilting angle influences the brightness. A colour wheel with red, green and blue coloured segments rotates between the lamp and the DMD chip. The synchronisation of coloured segment and mirror movement creates the colour mix. The coloured image created on the chip is projected outwards through the lens.
The benefits of DLP™ technology:
- The very limited pixel structure generates excellent video quality
- No screendoor effect, i.e. no overspill on to neighbouring pixels
- No convergence problems: the colours are projected without errors or colour shift.
- Very high contrast ratio and correspondingly better image sharpness.
- What information does the projector resolution provide?
The resolution is the number of horizontal and vertical pixels that the projector can represent. The higher the resolution, the more detailed the projected image.
SVGA, XGA and SXGA+ resolutions with the 4:3 screen format have been designed for use with business projectors and WVGA, WSVGA and WXGA with the 16:9 screen format are ideal for use with home cinema projectors. All Toshiba projectors can be switched from 4:3 to 16:9 and back again.
Business projectors
- Which projector is right for me?
- What does NCE mean?
- What can the presentation camera do?
- Which projectors are WLAN-enabled?
- Which projector is right for me?
Toshiba projectors are grouped into conferencing, mobile, wireless and camera models for various applications and requirements. We will be happy to advise you!
- What does NCE mean?
NCE is the Natural Color Enhancer – a Toshiba development for optimising the colour rendering for a neutral white and natural primary colours. Three image modes: bright, standard and true colour enable adaptation to individual requirements.
- What can the presentation camera do?
The rotatable camera can depict two- or three-dimensional objects and can also be used as a camera for video conferences (*additional hardware required).
- Which projectors are WLAN-enabled?
The SW20, TW90 and TW300 are wireless LAN-enabled devices in accordance with the 802.11 g/b standard. (SW20 802.11b only).
HomeCinema projectors
- Are the Toshiba home cinema projectors HDTV ready?
- What does HD ready mean?
- What is HDCP?
- What is DVI and HDMI?
- Are the Toshiba home cinema projectors HDTV ready?
All Toshiba home cinema projectors (and also the business projectors) can process HDTV signals. The Mt700 fulfils the HD-ready criteria.
- What does HD ready mean?
- The display (e.g. LCD or plasma) or the panel processor (e.g. DLP) must exhibit at least a native resolution of 720 pixels in the vertical direction in the 16:9 format. This means that 720 pixels must be available vertically.
- The following video inputs must be available:
- HD video inputs (HD = High Definition)
- Analogue: YUV (YPbPr), also termed component video
- Digital: DVI or HDMI (with HDCP copy protection)
- The HD video inputs must be able to process these formats:
- 1280 x 720 at 50Hz and 60Hz progressive ("720p")
- 1920 x 1080 at 50Hz and 60Hz interlaced ("1080i")
- HD video inputs (HD = High Definition)
- The DVI and HDMI digital inputs must support HDCP copy protection.
- What is HDCP?
HDCP (High Bandwidth Digital Content Protection) is a copy protection system for the new DVI and HDMI digital video interfaces. Smooth functioning of the DVI and HDMI interfaces for video data is only guaranteed if HDCP has been correctly implemented by the manufacturer in both connected devices.
All Toshiba projectors with DVI interface support HDCP.
- What is DVI and HDMI?
DVI (Digital Visual Interface) is an interface for transmitting digital video and graphics data. In the IT field DVI has become the standard interface for top-end graphics cards and high-resolution TFT monitors. DVI is fully upwardly compatible with HDMI.
HDMI (High Definition Multimedia Interface) is a relatively new interface for the fully digital transfer of audio and video data. HDMI was introduced by the industry specifically for the home entertainment sector where ever more digital components are used and also the software is now mainly available in digitalised form (e.g. DVD, DVB etc.)
Wireless LAN
- Which products are wireless and which standards, protocols and operating systems are supported?
The SW20, TW90 and TW300 are wireless LAN-enabled devices in accordance with the 802.11 g/b standard (SW20 802.11b only). The devices support the TCP/IP protocol incl. DHCP and the WEP encryption protocol with 64 or 128 Bit.
The supplied wireless utility for easy creation of the WLAN connection is suited to use with Microsoft Windows 2000 and XP systems. Support for MAC OS is being prepared.
