Panasonic PT-LB75U - Manual (Page 47)

Technical Information
E
NGLISH - 47
Appendix
* All measurements above are approximate and may differ slightly from the actual measurements.
J Calculation methods for screen dimensions
You can calculate more detailed screen dimension from the screen diagonal.
Screen width (SW) and screen height (SH)
SW (m) = SD (") x 0.0221 SH (m) = SD (") x 0.0125
Minimum distance (LW) and maximum distance (LT)
PT-LB80NTU: LW (m) = 0.0321 x SD (") - 0.04 LT (m) = 0.0388 x SD (") - 0.06
PT-LB75NTU: LW (m) = 0.0318 x SD (") - 0.022 LT (m) = 0.0383 x SD (") - 0.046
* The results above are approximate and may differ slightly from the actual measurements.
Screen size and throw distance for 16:9 aspect ratio
Projection size
(16 : 9)
Throw distance (L)
PT-LB80NTU / LB80U
Throw distance (L)
PT-LB78U / LB75NTU / LB75U
Screen diagonal
(SD)
Minimum distance
(LW)
Maximum distance
(LT)
Minimum distance
(LW)
Maximum distance
(LT)
33" (0.84 m) 1.2 m (3'11") 1.2 m (3'11")
40" (1.02 m) 1.2 m (3'11") 1.5 m (4'11") 1.3 m (4'3") 1.5 m (4'11")
50" (1.27 m) 1.6 m (5'2") 1.9 m (6'2") 1.6 m (5'2") 1.9 m (6'2")
60" (1.52 m) 1.9 m (6'2") 2.3 m (7'6") 1.9 m (6'2") 2.3 m (7'6")
70" (1.78 m) 2.2 m (7'2") 2.7 m (8'10") 2.2 m (7'2") 2.6 m (8'6")
80" (2.03 m) 2.5 m (8'2") 3.0 m (9'10") 2.5 m (8'2") 3.0 m (9'10")
90" (2.29 m) 2.8 m (9'2") 3.4 m (11'1") 2.8 m (9'2") 3.4 m (11'1")
100" (2.54 m) 3.2 m (10'5") 3.8 m (12'5") 3.2 m (10'5") 3.8 m (12'5")
120" (3.05 m) 3.8 m (12'5") 4.6 m (15'1") 3.8 m (12'5") 4.6 m (15'1")
150" (3.81 m) 4.8 m (15'8") 5.8 m (19') 4.7 m (15'5") 5.7 m (18'8")
200" (5.08 m) 6.4 m (20'11") 7.7 m (25'3") 6.3 m (20'8") 7.6 m (24'11")
250" (6.35 m) 8.0 m (26'2") 9.6 m (31'5") 7.9 m (25'11") 9.5 m (31'2")
300" (7.62 m) 9.6 m (31'5") 11.6 m (38') 9.5 m (31'2") 11.4 m (37'4")