The projector intended for carrying out of mobile presentations, often transfer about a place on a place and, besides it small and easy. In this connection before developers costs at least two problems, not so actual in case of stationary projectors: how to minimize consequences of inaccurate transportation and to reduce probability of that a projector will steal or will borrow for a while without the permission of the owner. Developers Toshiba TLP-X20 seriously have approached to the decision of these problems.
The design of notebook ratmans a projector has liked us a pleasant combination of severity, functionality and style. The case of a projector consists of details from black plastic and plastic with a silvery covering. On the top panel is closer to an objective there is a lattice dynamics, and three indicators and the control panel are closer to a back part.
To connect cables to them it is convenient, the truth, designations of sockets low-contrast and at a sight from above them notebook ratmans it is not visible. The socket for lock Kensingtona (the Anticreeping aperture so it have named in a management) is on right to a side. IK-priemnik only one in front.
The button under the forward panel liberates a leg about which help it is possible to raise a forward part of a projector. Back legs getting out the case are intended for elimination of a skew. For potolochnogo an arm in the bottom of a projector metal plugs with a groove are fixed. All sockets and an notebook ratmans objective are a little drowned in the case so nothing acts for its dimensions, means, possible impacts will have not on fragile parts, and on a plastic casing of the case.
The board conveniently lays in a hand. The most necessary buttons can be found to the touch, and, to reach them, it is not necessary to intercept the board in a hand. The board it is built in laser ukazka (the yellow button). From the board it is possible to transfer commands directly to a computer, passing as it happens usually, the intermediary in the notebook ratmans form of a projector. For this purpose it is necessary to connect to a computer complete IK-priemnik with interface USB.
Central djoystik the board moves the cursor of the mouse ( directions, speed depends on force of pressing), the button from below (it is direct under an index finger) emulates pressing the left button of the mouse, button R-CLICK on right, and buttons PAGE + and PAGE-arrows upwards and downwards keyboards notebook ratmans (them it is convenient to thumb through slides). On the board there is a cursor of inclusion of a feed of the board a guarantee of safety of a charge of batteries. The board from two AAA batareek eats.
The menu inconvenient. It big enough, but a font of inscriptions fine. Navigation under the menu demands frequent pressing button RETURN what it was possible to manage. At transition to the chosen page its kind considerably varies notebook ratmans – it changes a background and from text, becomes tekstovo-graficheskoy, with icons. Such transformation irritates and will a little disorient. At adjustment of the image of the menu remains on the screen that complicates an estimation of changes in a picture.
There is a Russian version of the screen menu, translation into Russian adequate.
Inputs D-sub universal, to them it is possible to connect sources as VGA-, and componental video signals. The operating mode of socket D-sub with designation COMPUTER IN is set by the switch located near to it in position MONITOR OUT on this socket notebook ratmans the video signals acting on input COMPUTER IN are transferred. If function Autosearch of a signal, first, at inclusion the projector finds an active video input is included and switched to it, and, secondly, the user cannot choose an inactive video input.
If autosearch is disconnected, by pressing button INPUT the screen the list of video inputs where active video inputs are noted is deduced, the user thus can choose any.
The projector is equipped by two audioinputs: the jack minidjek serves two sockets D-sub, and two sockets RCA a composit input and input S-Video. The external notebook ratmans audiosystem can be connected to audiooutput AUDIO OUT, thus built in dinamik it is disconnected, and buttons VOL of the board or on the case of a projector it is possible to adjust a level of an audiosignal.
Vy'rez in the case opens access to a wide ridge ring of focusing and ry'chajku zummirovaniya. The objective of a projector is fixed concerning a matrix so, that the bottom edge of the image is hardly below an axis of an objective. In a projector there is an automatic correction trapeceidal'ny'h distortions (+/- degrees), but the manual mode notebook ratmans of correction of a trapeze is just in case stipulated also.
Modes of geometrical transformation three (parameter the Size of the Screen): Full (the image of a format 4: shows in all screen), Real (scaling to the sanction of a matrix is disconnected, it is accessible only at VGA-podklyuchenii) and Wide (the image is drawn in from above and from below up to a format 16:9, is optimum for anamorfirovanny'h films). In a mode Wide the picture can be moved vverh-vniz.
There are functions of digital increase (buttons of notebook ratmans group RESIZE on the board, the area of increase moves kursorny'mi buttons), time deenergizing of a projection and a sound (MUTE) and stop-kadra (FREEZE).
The projector can be placed both on a table, and on potolochnom an arm and is able to work in a mode of a face-to-face projection and a projection to a gleam.
According to our classification, the projector concerns to srednefokusny'm so, at its face-to-face projection it is better to place approximately on a line of the first of some spectators or for it.
The user, first of all, should be defined, that it it it notebook ratmans is more important – brightness or a colour rendition. If brightness it is necessary to establish parameter the Mode of the image in if a colour rendition in or 3.
Then it is possible to modify a picture adjustments Contrast, Brightness, Chromaticity (the saturation, it is inaccessible at VGA-podklyuchenii), Clearness (planimetric sharpness) and to correct color balance separate adjustment of red, green and dark blue components (adjustment Level R/G/B).
Noisy picture, probably, the mode of suppression of videonoise (it notebook ratmans is inaccessible at VGA-podklyuchenii) will improve. The user structures are not present, but adjustments of the image are remembered for each type of connection individually. There is a mode of the lowered brightness, in this mode noise from system of ventilation decreases, and service life of a lamp increases.
In presentation projectors often there are the special modes intended for a projection to the painted board. Usually this mode assumes a projection to a green board, in projector Toshiba TLP-X20 not only that such mode is, but also the choice of color notebook ratmans of a board (only colors) is stipulated.
The projector can be disconnected from a network right after end of presentation – fans of system of cooling will work some time independently. There is disconnected function Otkl. Without a signal, automatically switching off a projector after minutes of absence, both a signal, and activity of the user. At activation of function a Feed vkl 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 are called: notebook ratmans function of blocking of buttons on the projector (parameter Blokir. Keys) and protection by the password from four figures.
At activation parol'noy protection, the projector not begins to show anything, the correct password will not be entered yet. Simple procedure of dump of the password in a management it is not described, to the users who have forgotten the password, recommend to address to the seller of a projector. As an additional safety measure it is possible to disconnect the control panel and to store it separately from a projector together with the board.
The projector can notebook ratmans work and without the control panel, but thus the mode parol'noy protection will join compulsorily.
As background prompt it is possible to register a fragment of a picture 5 on 3 points in the center of the screen (at VGA-podklyuchenii).
The projector can distancionno be operated on interface RS-232C. Raspinovka the interface socket, parameters of the report, a format of commands and the basic commands are resulted in a management.
Measurements of a light stream, contrast and uniformity of notebook ratmans illumination were spent by technique ANSI.
Light stream hardly above passport value. Uniformity of light exposure of the screen satisfactory. Contrast quite sufficient for carrying out of presentations.
Noise from system of ventilation in a mode of high brightness enough big, whenever possible is better to switch a projector to less bright and more silent mode.
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.
The white field is notebook ratmans in regular intervals shined; places to white mix this or that shade. The black field of patches of light does not contain, but in the center brightens a little. Geometry ideal. Weak gradation of shades grey razlichimy' in all range. At the Mode of the image = or shades of grey color generating well, at the Mode of the image = leave in green. Grids of pixels generating without artefacts. Colors bright, correct and sated. The width color kaymy' on notebook ratmans borders of the objects, caused by presence of chromatic aberrations of an objective, 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.
YArkostnaya image sharpness high. In case of color clearness of an opportunity of analog interfaces are realized not completely. Details razlichimy' both in shadows, and in svetah. Color balance of norm. The projector correctly carries out progressive transformation for motionless objects, objects in movement are deduced on fields more often. Nevertheless, with a test fragment of a film in format NTSC notebook ratmans the projector has consulted perfectly well, having recreated the staff from the fields alternating by way of 2-3.
It is complex to recommend a projector even for incidental viewing films as picture contrast for such activity low, and rustles a projector decently.
Idle time in use, stylish and rather compact projector Toshiba TLP-X20 ideally approaches for carrying out of mobile presentations. Functionality of a projector as a whole does not leave for frameworks notebook ratmans typical for a given class, but remote IK-priemnik remote "mouse" and the disconnected control panel allocate a projector from the general of some.
Meaning design, more likely, a number of technical decisions, than appearance, we award to projector Toshiba TLP-X20 the award for original design.
Other discussions in conference:
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