Barco 101-B Manual De Usuario

PJWU-101B  17/10/2014

10

2.General

The lens can be shifted with respect to the DMD (P) which result in a shifted image on the screen (Off-Axis). A 100% shift 
means that the centre point of the projected image is shifted by half the screen size. In other words, the centre point of 
the projected image falls together with the outline of the image in an On-Axis projection.  Due to mechanical and optical 
limitations it’s recommended to keep the shift values within the field of view (F) as illustrated below.  Within these shift 
ranges the projector and lens perform excellently. Configuring the projector outside these shift ranges will result in a slight 
decline of image quality.

No.

1
2
3
4

Barco nr

R9832762
R9832760
R9832761
R9832763

Throw Ratio

2.4~4.0:1

1.85~2.4:1

1.56~1.85:1
0.84~1.03:1

Horizontal(a)

(100%=half the screen width)

±30%
±30%
±30%
±25%

Vertical(b)

(100%=half the screen height)

±100%
±100%
±100%

±75%

 

It is mechanical possible to shift outside the recommended field of view, but it will result in a decline of 
image quality depending on the used lens and the zoom position of the used lens. Furthermore,  shifting 
too much in both directions will result in a blurred image corner.

Best image quality is projected in the On-Axis configuration.

Avoid to reduce the usage of lamp life.  Suggest the projector rotated and mounted vertical angle not > ±15°. 

Side to side tilt, however, must not exceed ±10°. This limit ensures that the lamp in the projector operates properly and safely. 

A

A

B

C

A