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Manual abstract: user guide NEC LT100T INSTALLATION DATA
Detailed instructions for use are in the User's Guide.
[. . . ] [. . . ] If the figures on the tables do not match the figures in the formulas, use the figures in the table. Distances may vary +/- 5%.
Formulas
Units: Inches
A = C / COS B = 3. 7H / 25. 4 C (WIDE) = (H x 2. 026) 2. 437 C (TELE) = C (WIDE) x 1. 3 = TAN
-1
((W x 0. 375) + B) / C
H = Screen Width Screen Width (H) = Screen Diagonal (4:3) x 4 / 5 Screen Height = Screen Diagonal (4:3) x 3 / 5 A = Distance between lens center and screen center B = Vertical distance between lens center and screen bottom (screen top for ceiling mount) C = Horizontal throw distance between screen surface and projector lens = Offset Angle of image path center line with reference to desktop or ceiling
Page1
Visual Systems Division Technical Bulletin
MultiSync® LT100 Installation Data
Desk Top and Ceiling Mount
Projection Distance and Screen Size for Ceiling Mount
The following shows the proper relative positions of the projector and screen. Refer to the table to determine the position of installation.
Ceiling Mount System
C 5. 85" Deluxe Mount
8. 20"
Screen Top
B
A
Screen Center
Horizontal Lens Offset
1. 63"
Distance Chart
Screen Size
Diagonal 40" 60" 67" 72" 84" 90" 100" 120" 150" 180" 210" 240" 270" 300" Width 32" 48" 53. 6" 57. 6" 67. 2" 72" 80" 96" 120" 144" 168" 192" 216" 240"
A
wide - tele 65. 2" - 84. 4" 97. 8" - 126. 5" 109. 8" - 140. 8" 118. 2" - 151. 5" 138. 2" - 177. 3" 148. 3" - 190. 8" 164. 8" - 212. 8" 198. 5" - 255. 2" 248. 7" - 319. 6" 298. 9" - 384. 0" 349. 0" - 448. 0" 399. 2" - 512. 7" 449. 4" - 577. 2" 500. 2" - No Tele
B
4. 7" 7. 0" 7. 8" 8. 4" 9. 8" 10. 5" 11. 7" 14. 0" 17. 5" 21. 0" 24. 5" 28. 0" 31. 5" 35. 0"
C
wide - tele 63. 0" - 82. 7" 94. 5" - 124. 0" 106. 2" - 138. 0" 114. 3" - 148. 5" 133. 7" - 173. 8" 143. 5" - 187. 1" 159. 4" - 208. 7" 192. 1" - 250. 3" 240. 7" - 313. 4" 289. 3" - 376. 6" 337. 9" - 439. 3" 386. 5" - 502. 9" 435. 1" - 566. 1" 484. 3" - No Tele
wide - tele 14. 8° - 11. 4° 14. 8° - 11. 4° 14. 8° - 11. 4° 14. 7° - 11. 4° 14. 7° - 11. 4° 14. 6° - 11. 3° 14. 6° - 11. 3° 14. 6° - 11. 3° 14. 6° - 11. 3° 14. 5° - 11. 3° 14. 5° - 11. 3° 14. 5° - 11. 2° 14. 5° - 11. 2° 14. 5° - No Tele
Note:
For screen sizes of 24 to 300 inches not indicated on the projection tables, use the formulas on page 1.
Page2
Visual Systems Division Technical Bulletin
MultiSync® LT100 Installation Data
Desk Top and Ceiling Mount
Projection Distance and Screen Size for Desktop
The following diagram shows the relationship between projector position and the screen.
Desktop System
C Screen Center A Screen Bottom B
Desk Top Level 3. 80"
Distance Chart
Screen Size
Diagonal 40" 60" 67" 72" 84" 90" 100" 120" 150" 180" 210" 240" 270" 300" Width 32" 48" 53. 6" 57. 6" 67. 2" 72" 80" 96" 120" 144" 168" 192" 216" 240"
A
wide - tele 65. 2" - 84. 4" 97. 8" - 126. 5" 109. 8" - 140. 8" 118. 2" - 151. 5" 138. 2" - 177. 3" 148. 3" - 190. 8" 164. 8" - 212. 8" 198. 5" - 255. 2" 248. 7" - 319. 6" 298. 9" - 384. 0" 349. 0" - 448. 0" 399. 2" - 512. 7" 449. 4" - 577. 2" 500. 2" - No Tele
B
4. 7" 7. 0" 7. 8" 8. 4" 9. 8" 10. 5" 11. 7" 14. 0" 17. 5" 21. 0" 24. 5" 28. 0" 31. 5" 35. 0"
C
wide - tele 63. 0" - 82. 7" 94. 5" - 124. 0" 106. 2" - 138. 0" 114. 3" - 148. 5" 133. 7" - 173. 8" 143. 5" - 187. 1" 159. 4" - 208. 7" 192. 1" - 250. 3" 240. 7" - 313. 4" 289. 3" - 376. 6" 337. 9" - 439. 3" 386. 5" - 502. 9" 435. 1" - 566. 1" 484. 3" - No Tele
wide - tele 14. 8° - 11. 4° 14. 8° - 11. 4° 14. 8° - 11. 4° 14. 7° - 11. 4° 14. 7° - 11. 4° 14. 6° - 11. 3° 14. 6° - 11. 3° 14. 6° - 11. 3° 14. 6° - 11. 3° 14. 5° - 11. 3° 14. 5° - 11. 3° 14. 5° - 11. 2° 14. 5° - 11. 2° 14. 5° - No Tele
Note:
For screen sizes of 24 to 300 inches not indicated on the projection tables, use the formulas on page 1.
Page3
Visual Systems Division Technical Bulletin
MultiSync® LT100 Installation Data
Desk Top and Ceiling Mount
Cabinet Dimensions
The following drawings show the cabinet dimensions for the MultiSync LT100. For millimeters multiply by 25. 4.
Page4
Visual Systems Division Technical Bulletin
MultiSync® LT100 Installation Data
Desk Top and Ceiling Mount
Ceiling Mount Dimensions
The following drawings show the dimensions for the MultiSync LT100 Deluxe Ceiling Mount. [. . . ] [. . . ]
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