Knoll Systems 1080p DLP user manual Screen Size and Projection Distance Short throw lens

Screen Size and Projection Distance (Short throw lens)

When using a wide screen (16:9)

In case of displaying the 16:9 picture on the whole area of the 16:9 screen.

16

9

: Picture area

Wide Screen 16:9

		Screen Size					Throw Distance				Center of lens to edge of
												screen bottom
Diagonal		Wide		High		Max			Min		Up			down
in	cm	in	cm	in	cm	ft	m	ft		m	ft		cm	ft	cm
300.0	762.0	261.5	664.1	147.1	373.6	36.2	11.0	29.0		8.8	0.0		0.0	-9.8	-298.9
250.0	635.0	217.9	553.5	122.6	311.3	30.1	9.2	24.1		7.4	0.0		0.0	-8.2	-249.1
200.0	508.0	174.3	442.8	98.1	249.1	24.1	7.3	19.3		5.9	0.0		0.0	-6.5	-199.2
150.0	381.0	130.7	332.1	73.5	186.8	18.1	5.5	14.5		4.4	0.0		0.0	-4.9	-149.4
133.0	337.8	115.9	294.4	65.2	165.6	16.0	4.9	12.8		3.9	0.0		0.0	-4.3	-132.5
106.0	269.2	92.4	234.7	52.0	132.0	12.8	3.9	10.2		3.1	0.0		0.0	-3.5	-105.6
100.0	254.0	87.2	221.4	49.0	124.5	12.1	3.7	9.7		2.9	0.0		0.0	-3.3	-99.6
92.0	233.7	80.2	203.7	45.1	114.6	11.1	3.4	8.9		2.7	0.0		0.0	-3.0	-91.7
84.0	213.4	73.2	186.0	41.2	104.6	10.1	3.1	8.1		2.5	0.0		0.0	-2.7	-83.7
72.0	182.9	62.8	159.4	35.3	89.7	8.7	2.6	7.0		2.1	0.0		0.0	-2.4	-71.7
60.0	152.4	52.3	132.8	29.4	74.7	7.2	2.2	5.8		1.8	0.0		0.0	-2.0	-59.8
50.0	127.0	43.6	110.7	24.5	62.3	6.0	1.8	4.8		1.5	0.0		0.0	-1.6	-49.8

The formula for screen size and projection distance

Y1	(Max.) = 0.12057x	x : Screen size (diag.)
Y2	(Min.) = 0.09660x	y : Projection distance
Z1 (Upper) = 0.00000x		z : Distance from the lens center to the
z2 (Lower) = -0.03268x		lower edge of the image

CONNECTIONS AND SETUP

When using a normal screen (4:3)

In case of setting the 16:9 picture to the full horizontal width of the 4:3 screen.

4

3

: Screen area : Picture area

Note

•There is a tolerance of ±3% in the formula above.

•Values with a minus (-) sign indicate the distance of the lens center below the bottom of the image.

Standard Screen 4:3

		Screen Size					Throw Distance				Center of lens to edge of
												screen bottom
Diagonal		Wide		High		Max			Min		Up			down
in	cm	in	cm	in	cm	ft	m	ft		m	ft		cm	ft	cm
300.0	762.0	240.0	609.6	180.0	457.2	33.2	10.1	26.6		8.1	0.0		0.0	-12.0	-365.8
250.0	635.0	200.0	508.0	150.0	381.0	27.7	8.4	22.2		6.8	0.0		0.0	-10.0	-304.8
200.0	508.0	160.0	406.4	120.0	304.8	22.1	6.7	17.7		5.4	0.0		0.0	-8.0	-243.8
150.0	381.0	120.0	304.8	90.0	228.6	16.6	5.1	13.3		4.1	0.0		0.0	-6.0	-182.9
133.0	337.8	106.4	270.3	79.8	202.7	14.7	4.5	11.8		3.6	0.0		0.0	-5.3	-162.2
106.0	269.2	84.8	215.4	63.6	161.5	11.7	3.6	9.4		2.9	0.0		0.0	-4.2	-129.2
100.0	254.0	80.0	203.2	60.0	152.4	11.1	3.4	8.9		2.7	0.0		0.0	-4.0	-121.9
92.0	233.7	73.6	186.9	55.2	140.2	10.2	3.1	8.2		2.5	0.0		0.0	-3.7	-112.2
84.0	213.4	67.2	170.7	50.4	128.0	9.3	2.8	7.4		2.3	0.0		0.0	-3.4	-102.4
72.0	182.9	57.6	146.3	43.2	109.7	8.0	2.4	6.4		1.9	0.0		0.0	-2.9	-87.8
60.0	152.4	48.0	121.9	36.0	91.4	6.6	2.0	5.3		1.6	0.0		0.0	-2.4	-73.2
50.0	127.0	40.0	101.6	30.0	76.2	5.5	1.7	4.4		1.4	0.0		0.0	-2.0	-61.0

The formula for screen size and projection distance

Y1	(Max.) = 0.11067x	x : Screen size (in)
Y2	(Min.) = 0.08867x	y : Projection distance (ft)
Z1	(Upper) = 0.00000x	z : Distance from the lens center to the
Z2	(Lower) = -0.03268x	lower edge of the image(in)

Note

•There is a tolerance of ±3% in the formula above.

•Values with a minus (-) sign indicate the distance of the lens center below the bottom of the image.

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