Canon D78-5382, Руководство по обслуживанию

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3. FUNCTIONS
3.1 Optics
●
Electromotive zoom and focus (same projection lens as the LV-7350)
The wide, telephoto zoom rate is 1.5
×
. Electromotive zooming is done within this
range, and projection size is variable. In addition, focus is similarly electromotive,
making appropriate position alignment possible.
3.2 Image
●
Projection distance and projection screen size
The appropriate projection distance is between 1.1 and 9.7 meters; thus, screens
range from 24 to 300 inches.
The following table presents the relationship between screen size and projection
distance.
* H1 and H2 are the lengths that result from dividing the screen's height - top and
bottom - with the lens's optical access as the boundary.
For this product, 26:1 is the ratio that results from the lens shift setting.
●
Keystone correction
This function corrects trapezoidal distortion of the projection screen resulting from
how the projector is positioned. It functions within a range of ±20º in the up-down
direction. (It does not function in the left-right direction.)
●
Image mode selection (by remote control)
Image mode can be selected depending on the type of input, as follows.
* [IMAGE] button : Switches the image mode, [INPUT] button : Switches the input
• Standard
This setting is the average of images overall, both computer and video.
• High contrast (for computer input)
This function brightly reproduces domains of medium brightness, thus showing the
entirety brightly.
Part 1: General Information
1-5
Screen
Size[cm]
Projection Zoom max
distance [m] Zoom min
H1 [cm]
H2 [cm]
24 type
49
×
37
(0.72)
1.10
35
1
36 type
73
×
55
1.11
1.67
53
2
100 type
203
×
152
3.18
4.76
147
6
150 type
305
×
229
4.80
7.16
220
8
200 type
406
×
305
6.42
9.57
294
11
300 type
610
×
457
9.66
(14.39)
440
17
Computer input
Video input
Standard
Standard High-contrast
Cinema
Custom
Custom