Lens Formulas - XGA Models (G5150 / G5350)

Distance Formulas

(4:3)

Definitions (units are in inches)

ELPLR03

Y

= 0.64X -1.54

Y = throw distance

 

 

V1

= 0.3X

X = diagonal screen size

 

 

 

W = image width

 

ELPLS03

Y(wide) = 1.07X – 1.80

H = image height

 

 

Y(tele)

= 1.92X – 1.72

V1 = vertical offset

 

 

V1

= 0X ~ 0.6X

 

 

 

ELPLM04

Y(wide) = 1.92X – 3.94

 

 

 

 

Y(tele)

= 2.91X – 3.88

4:3 Formulas

16:9 Formulas

 

V1

= 0X ~ 0.6X

W = X / 1.25

 

W = X / 1.147375

 

 

 

W = H x 4/3

W = H x 9/16

ELPLM05

Y(wide) = 2.88X – 6.48

H = W x 4/3

H = W x 9/16

 

Y(tele)

= 4.37X – 6.34

 

 

 

 

V1

= 0X ~ 0.6X

 

 

 

ELPLL06

Y(wide) = 4.31X – 6.99

 

 

 

 

Y(tele)

= 5.81X – 7.18

 

 

 

 

V1

= 0X ~ 0.6X

 

 

 

Distance Formulas

(16:9)

Definitions (units are in inches)

ELPLR03

Y

= 0.69X – 1.67

Y = throw distance

 

 

V1

= 0.245X

X = diagonal screen size

 

 

 

W = image width

 

ELPLS03

Y(wide) = 1.16X – 1.96

H = image height

 

 

Y(tele)

= 2.09X – 1.87

V1 = vertical offset

 

 

V1

= -0.081X ~ 0.572X

 

 

 

ELPLM04

Y(wide) = 2.09X – 4.30

 

 

 

 

Y(tele)

= 3.17X – 4.22

4:3 Formulas

16:9 Formulas

 

V1

= -0.081X ~ 0.572X

W = X / 1.25

W = X / 1.147375

 

 

 

W = H x 4/3

W = H x 9/16

ELPLM05

Y(wide) = 3.14X – 7.06

H = W x 4/3

H = W x 9/16

 

Y(tele)

= 4.76X – 6.91

 

 

 

 

V1

= -0.081X ~ 0.572X

 

 

 

ELPLL06

Y(wide) = 4.69X – 7.62

 

 

 

 

Y(tele)

= 6.33X – 7.83

 

 

 

 

V1

= -0.081X ~ 0.572X

 

 

 

**Note – popular screen sizes are listed in the charts below. If you do not see your screen size in the chart, please use the formulas above **

V1.7