Canon LV-7255 ￿Relationship between Screen Size and Projection distance, 25, 23, 30, 28, 40, 37, 50, 46, 60, 55, 70, 64, 80, 73, 90, 83, 92, Max, Min, 4cm, 5cm, 6cm, 8cm

7. Appendix

￿Relationship between Screen Size and Projection distance

Screen size at 4:3				Zoomed projection				Screen size at 16:9
aspect ratio				distance		H1	H2	aspect ratio
W x D (cm)				Max.	Min.			W x D (cm)
25"	51	x	38	-	0.9m	34cm	4cm	23"	51	x	29
					(3.1')	(1.1')	(0.1')
30"	61	x	46	-	1.1m	41cm	5cm	28"	61	x	34
					(3.8')	(1.4')	(0.2')
40"	81	x	61	1.0m	1.5m	55cm	6cm	37"	81	x	46
				(3.2')	(5.1')	(1.8')	(0.2')
50"	102	x	76	1.2m	1.9m	69cm	8cm	46"	102	x	57
				(4.1')	(6.4')	(2.3')	(0.3')
60"	122	x	91	1.5m	2.3m	82cm	9cm	55"	122	x	69
				(4.9')	(7.7')	(2.7')	(0.3')
70"	142	x	107	1.7m	2.7m	96cm	11cm	64"	142	x	80
				(5.8')	(9.0')	(3.2')	(0.4')
80"	163	x	122	2.0m	3.1m	110cm	12cm	73"	163	x	91
				(6.6')	(10.3')	(3.6')	(0.4')
90"	183	x	137	2.3m	3.5m	123cm	14cm	83"	183	x	103
				(7.4')	(11.6')	(4.1')	(0.5')
100"	203	x	152	2.5m	3.9m	137cm	15cm	92"	203	x	114
				(8.3')	(12.9')	(4.5')	(0.5')
110"	224	x	168	2.8m	4.3m	151cm	17cm	101"	224	x	126
				(9.1')	(14.2')	(5.0')	(0.6')
120"	244	x	183	3.0m	4.7m	165cm	18cm	110"	244	x	137
				(9.9')	(15.5')	(5.4')	(0.6')
130"	264	x	198	3.3m	5.1m	178cm	20cm	119"	264	x	149
				(10.8')	(16.8')	(5.9')	(0.7')
140"	284	x	213	3.5m	5.5m	192cm	21cm	129"	284	x	160
				(11.6')	(18.1')	(6.3')	(0.7')
150"	305	x	229	3.8m	5.9m	206cm	23cm	138"	305	x	171
				(12.4')	(19.4')	(6.8')	(0.8')
160"	325	x	244	4.0m	6.3m	219cm	24cm	147"	325	x	183
				(13.3')	(20.7')	(7.2')	(0.8')
170"	345	x	259	4.3m	6.7m	233cm	26cm	156"	345	x	194
				(14.1')	(22.0')	(7.7')	(0.9')
176"	358	x	268	4.4m	6.9m	241cm	27cm	162"	358	x	201
				(14.6')	(22.8')	(8.0')	(0.9')
180"	366	x	274	4.5m	7.1m	247cm	27cm	165"	366	x	206
				(14.9')	(23.3')	(8.1')	(0.9')
190"	386	x	290	4.8m	7.5m	261cm	29cm	174"	386	x	217
				(15.8')	(24.6')	(8.6')	(1.0')
200"	406	x	305	5.0m	-	274cm	31cm	184"	406	x	229
				(16.6')		(9.1')	(1.0')
210"	427	x	320	5.3m	-	288cm	32cm	193"	427	x	240
				(17.5')		(9.5')	(1.1')
220"	447	x	335	5.5m	-	302cm	34cm	202"	447	x	251
				(18.3')		(10.0')	(1.1')
230"	467	x	351	5.8m	-	315cm	35cm	211"	467	x	263
				(19.1')		(10.4')	(1.2')
240"	488	x	366	6.0m	-	329cm	37cm	220"	488	x	274
				(20.0')		(10.9')	(1.2')
250"	508	x	381	6.3m	-	343cm	38cm	229"	508	x	286
				(20.8')		(11.3')	(1.3')
260"	528	x	396	6.6m	-	357cm	40cm	239"	528	x	297
				(21.6')		(11.8')	(1.3')
270"	549	x	411	6.8m	-	370cm	41cm	248"	549	x	309
				(22.5')		(12.2')	(1.4')
280"	569	x	427	7.1m	-	384cm	43cm	257"	569	x	320
				(23.3')		(12.7')	(1.4')
290"	589	x	442	7.3m	-	398cm	44cm	266"	589	x	331
				(24.1')		(13.1')	(1.5')
300"	610	x	457	7.6m	-	411cm	46cm	275"	610	x	343
				(25.0')		(13.6')	(1.5')

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