Christie Projector Mirage S+14k User Manual

GLOSSARY 
 
Roadster / Mirage S+ User’s Manual A-7 
The distance between the front feet of the projector and the screen. Also called 
“Projector-to-Screen Distance”. Always use the correct Christie throw distance 
formula to calculate the proper throw distance (±5%) required for your lens. 
Throw ratio = throw distance / screen width. Typically used to differentiate lenses. 
Balance of red-to-green necessary for realistic representation of NTSC signals. 
The ability of a projector to synchronize to...

Appendix B 
Keypad Reference 
 
 Roadster / Mirage S+ User’s Manual B-1 
 
 
Figure B-1. Remote Keypad  

Appendix C 
Serial Communication Cables 
 
 Roadster / Mirage S+ User’s Manual C-1 
A serial link of RS232 or RS422 enables ASCII communication with the projector so 
that it can be controlled remotely from a PC or other controller. From a PC, connect a 
standard 9-wire RS232 serial cable to the 
RS232 IN port located on the side of the 
projection head. Or, for long-distance (>100 ft.) links with an RS422-compatible PC 
or controller, connect RS422 cable to the 
RS422 port.  
   

SERIAL COMMUNICATION CABLES 
C-2 
Roadster / Mirage S+ User’s Manual 
 
 
 
  

Appendix D 
Throw Distance 
 
 Roadster / Mirage S+ User’s Manual D-1 
Always consult this Appendix when planning a projector installation. See also 2.3, Projector Position and Mounting. 
Calculating Throw Distance 
 
Figure D-1. Calculating Throw Distance 
Correct throw distance depends on the screen size and lens present—the larger the image 
needed, the greater the distance you must allow between the lens and screen. Once you 
know the screen size and lens type present, you can calculate the precise...

SYSTEM INTEGRATION 
D-2 
Roadster / Mirage S+ User’s Manual 
Table D-1. Throw Distance Formulas 
Diagonal Screen Size 
 Lens Throw Ratio Throw Distance Formula cm (in.) ±5% 
in cm 
0.73:1 Fixed 0.7588 x screen width (↔ cm) + 31.211 cm 73-215 188-548 
1.2:1 Fixed (short) N/A N/A N/A 
1.2:1 Fixed (long) 1.25 x screen width (↔ cm) + 13.6 cm 37-383 95-973 
1.45 – 1.8:1 Min 1.4781 x screen width (↔ cm) +19.576 cm 
Max: 1.839 x screen width (↔ cm) + 21.392 cm 64-536 163-1375 
1.8 – 2.5 Min: 1.8301 x screen...

THROW DISTANCE 
 
Roadster / Mirage S+ User’s Manual D-3 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  1.45 – 1.8:1 Lens 
1.8 Zoom 
Image Width  (↔) Throw Distance  
cm in cm in 127 50 255 99 130 51 260 102 145 57 288 112 160 62 316 123 175 68 343 134 190 74 371 145 205 80 398 155 220 86 426 166 235 92 454 177 250 98 481 188 265 103 509 198 280 109 536 209 295 115 564 220 310 121 591 231 325 127 619 241 340 133 647 252 355 138 674...

SYSTEM INTEGRATION 
D-4 
Roadster / Mirage S+ User’s Manual 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1.8 – 2.5:1 Lens 
1.8 Zoom 
Image Width (↔) Throw Distance 
cm in cm in 
161 63 289 113 
165 64 296 115 
180 70 324 126 
195 76 351 137 
210 82 378 148 
225 88 406 158 
240 94 433 169 
255 99 461 180 
270 105 488 190 
285 111 516 201 
300 117 543 212 
315 123 571 223 
330 129 598 233 
345 135 626 244 
360 140 653 255 
375 146 680 265 
390 152 708 276 
405 158 735 287 
420 164 763 297...