Appendices > Glossary

Refresh Rate

The light-emitting element of a display maintains the

 

same luminosity and colour for an extremely short

 

time. For this reason, the image must be scanned

 

many times per second in order to refresh the light-

 

emitting element. The number of refresh operations

 

per second is called the "refresh rate", and is

 

expressed in hertz (Hz).

 

 

Resized display

This function is used to project computer images that

 

have a resolution more than or less than the

 

projector's panel resolution, so that they fill the

 

whole of the projection area.

 

 

SDTV

An abbreviation for Standard Definition Television.

 

It refers to standard television systems which do not

 

satisfy the conditions for High-Definition Television.

 

 

Security

A device consisting of a projector case with a hole in

lock

it that a commercially-available theft-prevention

 

cable can be passed through in order to secure the

 

device to a table or pillar. This projector is

 

compatible with the Microsaver Security System

 

manufactured by Kensington.

 

 

Squeeze

The method of compressing 16:9 Widescreen images

mode

and recording them on video software as 4:3 images.

 

When projecting with Squeeze mode on, the images

 

will return to their original 16:9 format.

 

 

sRGB

An international standard for colour intervals that

 

was formulated so that colours which are reproduced

 

by video equipment can be handled easily by

 

computer operating systems (OS) and the Internet.

 

 

64

SVGA

A type of video signal with a resolution of 800

 

(horizontal) 600 (vertical) dots which is used by

 

IBM PC/AT-compatible computers.

 

 

S-Video

A type of video signal which has the video

 

brightness and colour signal information separated,

 

in order to provide better image quality. It refers to

 

images which consist of two independent signals:

 

Y(luminance signal), and C (colour signal).

 

 

Sync.

The signals output from computers have a specific

(Synchronisation)

frequency. Image quality will suffer if the projector

 

frequency and the computer frequency do not match.

 

The process of matching the phases of these signals

 

(the relative position of the crests and troughs in the

 

signal) is called "synchronisation". If the signals are

 

not synchronised, problems such as flickering,

 

blurriness and horizontal interference can occur.

 

 

Tracking

The signals output from computers have a specific

 

frequency. Image quality will suffer if the projector

 

frequency and the computer frequency do not match.

 

The process of matching the frequency of these

 

signals (the number of crests in the signal) is called

 

"tracking". If tracking is not carried out correctly,

 

wide vertical stripes will appear in the projected

 

images.

 

 

VGA

A type of video signal with a resolution of 640

 

(horizontal) 480 (vertical) dots which is used by

 

IBM PC/AT-compatible computers.

 

 

XGA

A type of video signal with a resolution of 1,024

 

(horizontal) 768 (vertical) dots which is used by

 

IBM PC/AT-compatible computers.

 

 

Page 65
Image 65
Epson EMP-S1H, ELPLP29 manual Sdtv

ELPLP29, EMP-S1H specifications

The Epson EMP-S1H is a compact, versatile projector designed to deliver exceptional performance for various settings, including business presentations, educational environments, and home entertainment. Known for its reliability and advanced features, it incorporates state-of-the-art technologies to enhance image quality and user experience.

At the core of the Epson EMP-S1H is its powerful 3LCD technology, which utilizes three individual LCD panels to project vibrant and true-to-life colors. This technology effectively eliminates the issues of color separation and rainbow effect common in single-chip projectors. With a brightness of 2500 ANSI lumens, the EMP-S1H ensures vivid images even in well-lit rooms, making it suitable for diverse applications.

The projector has a native resolution of XGA (1024 x 768), providing sharp and detailed images, which is particularly advantageous for displaying text-heavy presentations. It supports multiple aspect ratios, including 4:3 and 16:9, allowing users to easily switch between different types of content. The contrast ratio of 2000:1 further enhances the clarity of visuals, ensuring that dark scenes retain depth and detail.

The Epson EMP-S1H is equipped with a variety of connectivity options, including HDMI, VGA, and USB ports, allowing for seamless integration with various devices such as laptops, tablets, and Blu-ray players. The inclusion of a built-in speaker adds convenience for users, eliminating the need for external audio equipment in smaller settings.

User-friendly features are also a highlight of the EMP-S1H. Its easy-to-navigate menu system and remote control make it simple to adjust settings on the fly. The projector’s lightweight design and compact dimensions facilitate portability, making it an excellent choice for on-the-go presentations or occasional use in different locations.

Moreover, the EMP-S1H is designed with energy efficiency in mind. It features an eco mode that reduces power consumption, leading to longer lamp life and lower operational costs. This projector not only meets the demands of modern users but also supports sustainability efforts.

In conclusion, the Epson EMP-S1H is a highly functional projector that excels in delivering high-quality visuals, flexibility in connectivity, and user-friendly operation, making it an ideal choice for a wide range of viewing needs.