CHOOSING A LENS ..................................................................... 80
Basic calculation ................................................................................. 81
Basic calculation example................................................................... 82
Full lens calculation............................................................................. 83
Introducing TRC .................................................................................. 83
Calculating TRC .................................................................................. 84
TRC table .......................................................................................... 84
Calculating the throw ratio with TRC ......................................................... 85
Full lens calculation example .............................................................. 86
SCREEN REQUIREMENTS........................................................... 87
Fitting the image to the DMD™........................................................... 87
1080p images displayed full width ............................................................ 87
1080p images displayed full height........................................................... 88
WUXGA images displayed full width ......................................................... 89
WUXGA images displayed with a height of 1080 pixels.................................. 89
WUXGA images displayed full height ........................................................ 90
Diagonal screen sizes......................................................................... 91
Fitting the image to the screen............................................................ 92
Positioning the screen and projector................................................... 93
POSITIONING THE IMAGE........................................................... 94
Maximum offset range......................................................................... 96
ASPECT RATIOS EXPLAINED...................................................... 97
Aspect ratio examples for DMD™ resolution 1080p ........................... 98
Aspect ratio examples for DMD™ resolution WUXGA...................... 101
Aspect ratio example: TheaterScope................................................ 104
FRAME RATES AND PULLDOWNS EXPLAINED......................... 105
Interlaced and progressive scan ....................................................... 105
Frame rates of image sources .......................................................... 105
Pulldowns - conversion into destination formats............................... 106
2:3 (normal) pulldown ......................................................................... 106
2:3:3:2 (advanced) pulldown................................................................. 107
APPENDIX A: LENS PART NUMBERS........................................ 108
APPENDIX B: LENS CHARTS .................................................... 109
How to use the lens charts................................................................ 109
How to nd the right lens chart......................................................... 110
1080p (1920 x 1080 pixels) .................................................................. 110
WUXGA (1920 x 1200 pixels).................................................................111
DMD™ resolution 1080p / WUXGA, full DMD™ width images......... 112
DMD™ resolution 1080p, 1.25:1 images .......................................... 113
DMD™ resolution 1080p, 1.33:1 images .......................................... 114
DMD™ resolution 1080p, 1.6:1 images ............................................ 115
DMD™ resolution 1080p, 1.66:1 images .......................................... 116
DMD™ resolution WUXGA, 1.25:1 images....................................... 117
DMD™ resolution WUXGA, 1.33:1 images....................................... 118
APPENDIX C: SUPPORTED SIGNAL INPUT MODES ...................119
APPENDIX D: MENU MAP.......................................................... 122
CONTENTS (continued)