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Digital Projection Projector HIGHlite 740 Series User Manual

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Page 81

page 72
Operating Guide
USING THE PROJECTOR
Setting up an IR address
The projector and the remote control need a matching IR address: a two-d\
igit number 
between 00 and 99.
The default IR address is 00. This is also a master address, which, if assigned to a remote, 
will work regardless of the value assigned to the projector.
To assign an IR address for the projector,
• Open the OSD, access Setup > System and select IR Address.
To assign IR address for the remote:
1. Press and hold the ADDR button on...

Page 82

page 73
Operating Guide
USING THE PROJECTOR
Information menu
This menu gives information about lamp operating times, software and hardware configuration, input 
source and network settings.
Lamps
This menu gives information about lamp hours and starts.
Configuration
This menu gives information about the various projector components. If y\
ou need to contact your 
dealer about an issue with the projector, they may want you to quote some of the information shown 
on this page to help diagnose the problem....

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Operating Guide
   
Digital Projection HIGHlite 740 Series 
This page is intentionally left blank.  

Page 84

REFERENCE GUIDE4 
Rev I Februar y 2015 
HIGHlite 740 Series
High Brightness Digital Video Projector  

Page 85

Reference Guide
IN THIS GUIDE
IN THIS GUIDE
The DMD™ ........................................................................\
...................................78
Choosing A Lens ........................................................................\
........................80
Basic calculation .......................................................................................................81
Basic calculation example...

Page 86

Reference Guide
IN THIS GUIDE
IN THIS GUIDE (continued)
Appendix D: Menu Map ........................................................................\
..........122
Input Selection .......................................................................................................122
Test Pattern .............................................................................................................122
Lens...

Page 87

page 78
Reference Guide
THE DMD™
The DMD™
A DMD™ (Digital Micromirror Device™) is a true digital light modu\
lator which utilizes an array of up to 2.3 million moving aluminium mirr\
ors, 
with each one representing a pixel in the final projected image. The outermost micromirrors in the array remain inactive and are not used in 
constructing the image.
1Casing
2Light shield
3Inactive mirrors
4Array
Each mirror element is suspended over address electrodes by a torsion hi\
nge between two posts. 
1Support...

Page 88

page 79
Reference Guide
THE DMD™
Depending on the voltage polarity applied, each mirror will either tilt \
to the left to produce a bright pixel or to the right for a dark pixel. \
When 
light is applied to the complete DMD™, only the light redirected from\
 a mirror tilting to the left is projected.
1Projection lens
2Incoming light from the lamp
3Mirror element tilted to the right
4Mirror element tilted to the left
5Reflected light, left tilt
6Light dump
7Reflected light, right tilt
The projector...

Page 89

page 80
Reference Guide
CHOOSING A LENS
Choosing A Lens
A number of lenses are available. Which lens you choose depends on the sc\
reen size, image aspect ratio, throw distance and light output.
The following table shows all available lenses in order of their throw ratios:
Throw ratiosThrow distance range
0.77 : 1 fixed lens1.3 - 2.5 m (4.3 - 8.2 ft)
1.16 : 1 fixed lens1.4 - 6.2 m (4.6 - 20.3 ft)
1.45 - 1.74 : 1 zoom lens1.8 - 9.3 m (5.9 - 30.5 ft)
1.74 - 2.17 : 1 zoom lens2.2 - 11.8 m (7.2 - 38.7 ft)...

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page 81
Reference Guide
CHOOSING A LENS
Basic calculation
Identify the required lens by calculating the throw ratio.
A throw ratio is the ratio of the throw distance to the screen width:
Throw distanceScreen width
Throw ratio =
1. Use the formula above to obtain the required throw ratio.
2. Match the throw ratio with a lens from the table below:
Throw ratiosThrow distance range
0.77 : 1 fixed lens1.3 - 2.5 m (4.3 - 8.2 ft)
1.16 : 1 fixed lens1.4 - 6.2 m (4.6 - 20.3 ft)
1.45 - 1.74 : 1 zoom lens1.8 - 9.3...
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