In overwhelming majority of cases at carrying out of presentation by a source of the image is noutbuk, connected VGA-kabelem to a projector, and from all additional functions the lecturer uses only remote browsing of slides, and if it knows that about such function, and board DU was not lost yet. That is, choosing a projector, it is necessary to reflect, and whether it is necessary to overpay for functions which can appear not demanded? Or nevertheless it is more rational to get a projector without superfluous navorotov. For example, such as EPSON EMP-S – a budgetary projector from the largest manufacturer LCD-matric for projectors. The complete set of delivery, the characteristic and the price Are born on
Appearance Design of a projector very quiet and any cosy, characteristic, more likely, for domashne-razvlekatel'nogo the computer lowest notebook price device, than for ofisno-delovogo. The top part of the case is made of plastic with a silvery covering, and the bottom – from temno-sero-korichnevogo plastic. The control panel with buttons and indicators is located almost in the center of the top panel.
The objective in transport position from a dust and damages protects shtorka. SHtorka without an electromechanical drive as in some projectors, it simply moves a hand of the user. SHtorku it is possible to close and during work of a projector, thus it is automatically switched off both the projection and a sound, is an alternative way of inclusion of function A/V Mute, accompanied by demonstrative physical action. The interface electric sockets are in a niche in the top part of the back panel.
Signatures to sockets are located near to them, but on the top panel. Connection of cables and identification of sockets do not cause any difficulties. In the center of the back panel there is a lattice dynamics, and practically on the bottom – a socket of computer lowest notebook price a feed. Half of right panel is borrowed with an exhaust lattice of ventilation, and on left – there is nothing, except for a socket for lock Kensingtona. On the forward panel near to an objective and on back, in the end of some sockets, there are round windows IK-priemnikov.
The blue button in front liberates the forward leg adjusting rise of a projector. From two back legs only left gets out of the case. As the height of this leg is practically equal completely twisted position to height of the second back effectively to eliminate it is possible only a skew of a projector to the left. For fastening a projector to an arm in the bottom metal plugs with carving apertures are fixed. Vulnerable elements of a design – an objective and sockets – are drowned in the case, and the objective has strong protective shtorku, therefore external impacts will fall to the plastic case and, most computer lowest notebook price likely, will not lead to serious damages. Additional protection is provided with a complete bag for perenoski into which walls are fixed dempfiruyusch'ie linings. A bag, by the way, very simple – branch for a projector, one big pocket under all rest, the valve on lipuchke and naplechny'y a belt.
The board the Board small, it conveniently lays in a hand, and it is possible to reach all buttons a greater finger, not intercepting the board. It is a lot of buttons, the form and the sizes at them identical and only the isolated arrangement of the some people allows to find confidently them to the touch. On the contrary, four-item navigating djoystik there is easily, and it very convenient. Djoystik it is useful for navigation under the menu, change of parameters, etc., and also for moving kursora-ukazatelya on the screen. This cursor is caused on the screen by button Pointer, and its kind can be chosen one of three in the menu of installations.
In a projector there is a function of the remote mouse: if the projector is connected to a computer by cable USB and djoystik the board is not involved under other functions they can move the computer lowest notebook price cursor of the mouse (only in four directions), and two buttons of the board work as the left and right buttons of the mouse, thus two more buttons of the board allow to look through slides of presentation far off. The board from two AAA batareek the Menu of the Menu convenient eats: it large enough, a font readable, navigation does not demand superfluous actions. Simultaneously from the menu on the screen there is also a help on functions of buttons. At adjustment of parameters of the image of the menu disappears from the screen, there is only a toddler with changeable parameter. The Russian version of the screen menu differs quite good translation of terms into Russian. Also on Russian it is translated dialogue spravka-pomosch'', caused by button Help on the board or on the case of a projector. This information will help to eliminate the most widespread problems the user's guide thus Switching Connection of a projector to computer lowest notebook price sources video-is not required and audiosignals should not cause any difficulties. The main thing to connect VGA-kabel' from a computer to dark blue VGA-raz`emu a projector, instead of to black which transfers signals with dark blue to the external monitor or one more projector. For connection of a source componental cvetoraznostnogo a signal it is required standard kabel'-perehodnik with mini D-sub pin on RCA-raz`emy'. Operating mode VGA-vhoda chooses a projector automatically, in case of erroneous recognition of a signal, the user can specify its type manually. We shall note, that an audioinput of a projector are two RCA-raz`ema, usually presentation projectors are equipped with sockets of type minidjek, and RCA – only as an option for work with household A/V-istochnikam. For switching on the necessary video input it is possible to press button Source Search computer lowest notebook price on DU or on the case, thus the projector will touch all inputs and will stop on the first active. The alternative to specify a concrete video input, having pressed on one of three buttons of group Source of the board
Management of a projection For focusing the image it is necessary to take advantage ry'chajkom on an objective, accessible through vy'rez in the case. The objective of a projector has the fixed focal length, therefore for change of the size of the image it is possible or to change distance up to the screen, or to take advantage of function of a digital zoom. This function is similar to the function meeting in digital foto-and videocameras: moving from initial scale It is wide. (Wide) to a body (Tele), the user reduces the image and quantity of active pixels of a matrix at and so its small sanction.
It is obvious, that similar interpolation considerably worsens the image, and it is better to move a projector concerning the screen, than to apply a digital zoom. However, the fixed objective easier, more reliably and more cheaply, that, on idea, should be computer lowest notebook price reflected in cost and reliability of a projector as a whole.
The objective of a projector is fixed concerning a matrix so, that at the switched off digital zoom the bottom edge of the image is hardly below an axis of an objective. In a mode of a digital zoom, the more close to an extreme position the Body, the above edge of the aligned image. It is remarkable, that in a mode of a digital zoom the image can be moved on the screen in borders of the initial, not reduced picture. In a projector there is a manual digital correction trapeceidal'ny'h distortions (+/- degrees), but, as well as the digital zoom, this function worsens quality of a picture.
To the listed functions changing geometry of a picture, it is possible to add still a wide-screen mode (podjatie on a vertical up to a parity 16:9, it is accessible at composit, S-Video and componental connection).
The projection and sound are temporarily switched off by pressing button A/V Mute of the board. Button Freeze freezes the image, and buttons + and - from group E-Zoom it is possible to increase the image up to x with step 0,125, and djoystikom computer lowest notebook price thus to move area of increase.
The projector supports modes of a face-to-face projection and a projection to a gleam and the top is able to work as legs, being fastened to potolochnomu to an arm. According to our classification the projector concerns to srednefokusny'm so, at its face-to-face projection Adjustment of the image is better to place approximately on a line of the first of some spectators the Projector has the whole preestablished structures, including a structure for a projection to a board of green color.
Accurately to correct a picture adjustments help: Brightness, Contrast, It Is sated. Colors, the Shade, Sharpness and Color. temperat. (high, Average and Low).
The advanced users have an opportunity to choose item Adjustment of color and to change intensity of red, green and dark blue making colors.
It is quite enough for the presentation purposes of adjustments. The user structures are not present, but adjustments of the image are remembered for each type of connection individually. The lamp of a projector can be translated in economic less bright mode, having reduced at the same time noise from system of ventilation and time in an one and a half having slowed down ageing of a lamp.
Additional opportunities Full computer lowest notebook price deenergizing of a projector even at work in a mode of the maximal brightness borrows literally some seconds. The projector can be disconnected at once upon termination of presentation from a network as system of cooling still some time will work from an internal source. There is the disconnected function the Sleeping mode which are automatically switching off a projector after 30-minutnogo of the period of absence of a signal or actions of the user at closed shtorke of an objective. At activation of mode Direct Power On submission of a feed will return a projector in that condition (work or expectation) in which it was at switching-off of a feed.
To limit not authorized use of a projector functions of blocking of buttons on the projector (everything, except for Power) and protection by the password are called. At activation parol'noy protection to use a projector to destination it will be possible only after input of the password from four figures. The inquiry of the password can be delayed for the term of from till 99 o'clock, for example, obviously to limit time of its work in another's hands. The password can be restored, having addressed in representation EPSON and computer lowest notebook price having informed it an individual code. After 30-ti attempts of input of the password the projector will be blocked, and it is necessary to address besides in EPSON.
As it is told in a management, the projector can be operated through USB-interfeys, using program EMP Link 21L. Behind details send on site EPSON
Measurement yarkostny'h characteristics Measurement of a light stream, contrast and uniformity of illumination were spent on techniques
The light stream the maximal brightness 19 lm a mode of the lowered brightness 15 lm Uniformity of + %, Contrast 190: the Maximal light stream even is a little- % above passport 18 lm. Uniformity of light exposure of the screen satisfactory. Contrast high Noise from system of ventilation moderated also does not irritate Sound characteristics.
Attention! The resulted values of a level of sound pressure from system of cooling are received on and they cannot be compared to nameplate data of a projector directly
Mode Noise level, computer lowest notebook price dBA Value judgment the Maximal brightness 41, moderately loudly Lowered brightness 36, it is silent
Built in dinamik loud enough, but on the maximal loudness the sound is deformed. However, for ozvuchki and it it is enough slides
VGA-podklyuchenie White and black weeding have insignificant variations of brightness and shades. On a subfloor of patches of light is not present. Geometry ideal. Shades razlichimy' in all range, both in svetah, and in shadows, but grey color on a scale grey places has an easy extraneous shade. Grids of pixels generating without artefacts. Colors bright, correct and sated. The width color kaymy' on borders of the objects, caused by presence of chromatic aberrations of an objective, in corners of a picture does not exceed 1/ pixels. Function of autofine tuning under parameters VGA-signala works quickly and precisely, manual fine tuning of parameters it is not required. Work with a source of composit and componental video signal YArkostnaya clearness (TVL) composit more than 5 it is excellent computer lowest notebook price S-Video more than 5 perfectly componental 5 very well Color clearness (TVL) composit 1 very well S-Video 1 very well componental 2 Perfectly Image sharpness high. Details razlichimy' both in shadows, and in svetah. Color balance of norm. At the included mode Progressive the projector carries out correct deinterleysing only for motionless objects, at switched off simply deduces the image on fields. Conclusions EPSON EMP-S it is reliable and simple in use a presentation projector. It is quite enough its brightness, sanction and functionality for carrying out of typical presentations. It is necessary to look narrowly at this projector if it would not be desirable to overpay for superfluous functions and XGA-matricu Advantages: the Protected objective and a socket
Alexey Kudryavtsev (kalexk@ .com) It is published — on October, 19th, 2006
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