V 1.00 - eng
25
LTBRZ3-C series
| INSTRUCTIONS MANUAL
•
Option [-BL]:
this configuration provides a diffused light pattern over all the active area. This pattern is suitable
for backlight applications.
Figure 23: light pattern at the diffuser surface, color: white.
A test report with measured performance will be provided only for this configuration.
Important note: please consider the data provided here as based on either laboratory
measurements or computer simulations, and that actual results in different setups, conditions and
environments may vary. The quality of light and its effect on the sample must be evaluated by the
customer.
10.7.3 Polarizer options
LTBRZ3 series can be equipped with a polarizer film mounted on top of the diffusor. Generally,
polarizing films are used in a wide variety of applications. A linear polarizer is a good solution in
applications that require glare reduction due to direct reflected lights. Machine vision systems
greatly benefit from the use of linear polarizers. 3 possible options are available and are listed in
the table below. The polarizers are linear.
Option
Description
-PH
The polarizing axis of the film is parallel to the width of the illuminator
-PV
The polarizing axis of the film is parallel to the height of the illuminator
Empty
No polarizers mounted
Figure 24: Polarizing option.
Please note what follows: if using a single LTBRZ3 module, in some applications the polarizing
direction in not critical. Consequently both -PH and -PV options can work with good result. This is
not true when multiple illuminators are used together, for example with 4 LTBRZ3 forming a square
pattern. In this case it is important to respect the linear direction of the polarization.
