NEC lt100 User Manual

C

A

Screen center

D

E

B

LT100 : 3.8” (97mm)
LT81 : 3.4” (85.6mm)

Projector feet

α

Projector feet

C

α

D

E

B

A

Unit (inch)
H (inch) = Width of screen
A = C / cos

α

B = 3.7H / 25.4
C (WIDE) = (2.026

2

H) – 2.437

C (TELE) = C (WIDE)

2

1.3

D = E / 2
E = H / 4

2

3

Unit (mm)
H (inch) = Width of screen
A = C / cos

α

B = 3.7H
C (WIDE) ={(2.026

2

H) – 2.437} 

2

25.4

C (TELE) = C (WIDE)

2

1.3

D = E / 2
E = H / 4

2

3

A : Distance between lens center and

screen center

B : Vertical distance between lens center

and screen bottom (screen top for ceil-
ing mount)

C : Horizontal throw distance between

screen surface and projector lens

D : Vertical distance between screen

center and screen bottom (screen top
for ceiling mount)

E : Screen Height

Screen

Screen bottom

Screen center

Screen top

LT100 : 3.8” (97mm)
LT81 : 3.4” (85.6mm)