Sharp XV-Z12000 Handy Guide ▷ View online
Image Measurements
Version 1.3
Issue 04/2006
Issue 04/2006
21
SHARP ELECTRONICS (UK) LTD
PROJECTOR TECHNICAL SUPPORT
TECHNICAL SERVICES GROUP
I know the diagonal screen size, how do I calculate the screen width?
Consider the following triangle in relation to your screen
The most common image format for CTV, PC and projected images is 4:3 (4 by 3). This is
also known as the image aspect ratio. This means that the height measurement is ¾ that of
the width. Using the 3-4-5 triangle rule, the diagonal measurement can be used to calculated
width.
also known as the image aspect ratio. This means that the height measurement is ¾ that of
the width. Using the 3-4-5 triangle rule, the diagonal measurement can be used to calculated
width.
Although 4:3 is a popular aspect ratio there are others:
5:4
Some PCs are able to produce SXGA images, which offer a resolution of 1280 dots
horizontally by 1024 dots vertically. This aspect ratio is 5:4
Some PCs are able to produce SXGA images, which offer a resolution of 1280 dots
horizontally by 1024 dots vertically. This aspect ratio is 5:4
16:9 and 21:9
The majority of DVD format films are now mastered in Wide-Screen format, of which there are
two popular aspect ratios; 16:9 and 21:9. Sometimes these ratios are quantified with respect
to 1, so expect to see 1.85:1 and 2.35:1 respectively.
The majority of DVD format films are now mastered in Wide-Screen format, of which there are
two popular aspect ratios; 16:9 and 21:9. Sometimes these ratios are quantified with respect
to 1, so expect to see 1.85:1 and 2.35:1 respectively.
Knowing the diagonal measurement, calculating the screen width with these other ratios can
be done in a similar manner.
be done in a similar manner.
For 5:4 (1.25:1)
Width = (Diagonal ÷ 6.403) x 5
For 16:9 (1.78:1)
Width = (Diagonal ÷ 18.358) x 16
For 21:9 (2.35:1)
Width = (Diagonal ÷ 22.847) x 21
Focal Length
This is the distance between the display panel and the focal point. The focal length is usually
printed on the lens ring and is usually preceded with a lower case f. If it is a zoom lens then
two figures will be present, one each for the maximum and minimum zoom. eg. f=32.5-44mm.
This figure can be used to calculate the image size and throw distance values if the size of
the display panel is known.
This is the distance between the display panel and the focal point. The focal length is usually
printed on the lens ring and is usually preceded with a lower case f. If it is a zoom lens then
two figures will be present, one each for the maximum and minimum zoom. eg. f=32.5-44mm.
This figure can be used to calculate the image size and throw distance values if the size of
the display panel is known.
SCREEN WIDTH
SCREEN
HEIGHT
HEIGHT
DIAGONAL
HEIGHT-WIDTH-DIAGONAL RATIO=3:4:5
Examples
Diagonal = 10m Width = (Diagonal ÷ 5) x 4 = 10 ÷ 5 x 4 = 8m
Height = 6m Width = (Height ÷ 3) x 4 = 6 ÷ 3 x 4 = 8m
Height = 6m Width = (Height ÷ 3) x 4 = 6 ÷ 3 x 4 = 8m
Image Measurements
Version 1.3
Issue 04/2006
Issue 04/2006
22
SHARP ELECTRONICS (UK) LTD
PROJECTOR TECHNICAL SUPPORT
TECHNICAL SERVICES GROUP
Display Panel
This is the physical component within the projector that creates the image. It can be either an
LCD panel or DMD device.
LCD panel or DMD device.
Calculating Image Size and Throw Distance using Focal Length
If the throw ratio of the lens is not available then the focal length can be used to calculate the
image size or throw distance, however the dimensions of the display panel are needed.
If the throw ratio of the lens is not available then the focal length can be used to calculate the
image size or throw distance, however the dimensions of the display panel are needed.
To calculate the throw distance for a pre-defined image size:
Example
Calculate the throw distance required to give a 2.5m diagonal image. The focal length of the
lens is 44mm and the DMD panel is 20.32mm (Diag)
Calculate the throw distance required to give a 2.5m diagonal image. The focal length of the
lens is 44mm and the DMD panel is 20.32mm (Diag)
To calculate the image size from a set distance:
Example
Calculate the image size (diag) at a throw distance of 3m. Focal length is 63.8mm and the
LCD panel is 63.8mm (Diag)
Calculate the image size (diag) at a throw distance of 3m. Focal length is 63.8mm and the
LCD panel is 63.8mm (Diag)
Sharp will not accept liability for any errors caused by using this document. Sharp
recommends a site survey is always undertaken
recommends a site survey is always undertaken
.
f
f Focal Length
Display Device
Screen
Focus
Lens
Lens
Zoom
Lens
Lens
Focal Length x
Image Size
Panel Size
Throw Dist
x
Panel Size
Focal Length
44mm
x
2500mm (diag) = 5413mm (5.413m)
20.32mm (diag)
3000mm
x 33.25mm (diag) = 1563mm (diag) (1.563m)
63.8mm (diag)
Image and Panel Size must be of the same dimension. i.e. Image and Panel
diagonal measurement OR width measurement.
Support Signals (Resolution and
Video)
Version 1.3
Issue 04/2006
Issue 04/2006
23
SHARP ELECTRONICS (UK) LTD
PROJECTOR TECHNICAL SUPPORT
TECHNICAL SERVICES GROUP
Computer Compatibility Chart
Note
•
This projector may not be able to display images from notebook computers in simultaneous (CRT/LCD) mode.
Should this occur, turn off the LCD display on the notebook computer and output the display data in “CRT only”
mode. Details on how to change display modes can be found in your notebook computer’s operation manual.
Should this occur, turn off the LCD display on the notebook computer and output the display data in “CRT only”
mode. Details on how to change display modes can be found in your notebook computer’s operation manual.
•
Multiple signal support
•
Horizontal Frequency: 15–81 kHz, Vertical Frequency: 43–100 Hz, Pixel Clock: 12–120 MHz
•
Compatible with sync on green signal
•
SXGA compatible in intelligent compression
•
AICS (Advance Intelligent Compression and Expansion System resizing technology) resizing technology
Analogue support
VGA
SVGA
XGA
WXGA
SXGA
SXGA+
UXGA
MAC 13”
MAC 16”
MAC 19”
MAC 21”
9
9
9
Native
9
8
8
9
9
9
9
DVI support
VGA
SVGA
XGA
WXGA
SXGA
SXGA+
UXGA
MAC 13”
MAC 16”
MAC 19”
MAC 21”
9
9
9
9
9
8
8
8
8
8
8
“Plug and Play” function (when connecting to a 15-pin
terminal)
•
terminal)
•
This projector is compatible with VESA-standard DDC 1/DDC 2B. The projector and a VESA DDC compatible
computer will communicate their setting requirements, allowing for quick and easy set-up.
computer will communicate their setting requirements, allowing for quick and easy set-up.
•
Before using the “Plug and Play” function, be sure to turn on the projector first and the connected computer last.
Note
•
When this projector receives 640 x 350 VESA format VGA signals “640 x 400” appears on the screen
•
When projecting image of an interlaced RGB format, the image may not be displayed due to the format of this
signal. In this case use either the component, S-Video or composite video inputs
signal. In this case use either the component, S-Video or composite video inputs
Video Signal Support
Signal
Supported
PAL
9
PAL-60
9
SECAM
9
NTSC
9
Digital Video Support
Signal
Horizontal Frequency (kHz)
Vertical Frequency (Hz)
DVI Support
480I
15.8
60
8
480P
31.5
60
9
576I
15.6
50
8
576P
31.3
50
9
720P
45.0
60
9
720P
37.5
50
9
1080I
33.8
60
9
1080I
28.1
50
9
Pin Assignments
Version 1.3
Issue 04/2006
Issue 04/2006
24
SHARP ELECTRONICS (UK) LTD
PROJECTOR TECHNICAL SUPPORT
TECHNICAL SERVICES GROUP
Connecting Pin Assignments
DVI Digital / Analog INPUT 1 port: 29-pin connector
DVI Digital Input
1. T.M.D.S data 2–
16. Hot plug detection
2. T.M.D.S data 2+
17. T.M.D.S data 0–
3. T.M.D.S data 2 shield
18. T.M.D.S data 0+
4. Not connected
19. T.M.D.S data 0 shield
5. Not connected
20. Not connected
6. DDC clock
21. Not connected
7. DDC data
22. T.M.D.S clock shield
8. Not connected
23. T.M.D.S clock+
9. T.M.D.S data 1–
24. T.M.D.S clock–
10. T.M.D.S data 1+
C1. Not connected
11. T.M.D.S data 1 shield
C2. Not connected
12. Not connected
C3. Not connected
13. Not connected
C4. Not connected
14. +5V current
C5. Ground
15. Ground
DVI Analog RGB Input
DVI Analog Component Input
1. Not connected
16. Hot plug detection
1. Not connected
16. Not connected
2. Not connected
17. Not connected
2. Not connected
17. Not connected
3. Not connected
18. Not connected
3. Not connected
18. Not connected
4. Not connected
19. Not connected
4. Not connected
19. Not connected
5. Not connected
20. Not connected
5. Not connected
20. Not connected
6. DDC clock
21. Not connected
6. Not connected
21. Not connected
7. DDC data
22. Not connected
7. Not connected
22. Not connected
8. Vertical sync
23. Not connected
8. Not connected
23. Not connected
9. Not connected
24. Not connected
9. Not connected
24. Not connected
10. Not connected
C1. Analog input Red
10. Not connected
C1. Analog input Pr/Cr
11. Not connected
C2. Analog input Green
11. Not connected
C2. Analog input Y
12. Not connected
C3. Analog input Blue
12. Not connected
C3. Analog input Pb/Cb
13. Not connected
C4. Horizontal sync
13. Not connected
C4. Not connected
14. +5V current
C5. Ground
14. Not connected
C5. Ground
15. Ground
15. Ground
RS-232C Port: 9-pin D-sub male connector of the DIN-D-sub RS-232C cable
Pin No.
Signal
Name
I/O
Reference
1
CD
Not connected
2
RD
Receive Data
Input
Connected to internal circuit
3
SD
Send Data
Output
Connected to internal circuit
4
ER
Not connected
5
SG
Signal Ground
Connected to internal circuit
6
Not connected
7
Not connected
8
Not connected
9
CI
Not connected
Click on the first or last page to see other XV-Z12000 service manuals if exist.