Multi-Wavelength Pattern Scanning System - LightLas 532 / 670 – Operators Manual
Rev. No 01
Page 30 of 126
The LIO has more loss than the Endoprobes as it has a collimating system, mirror, and
focusing lens for the laser beam to be transmitted through and all of these have
some contributing losses. The least efficient of the LDU’s is the Slit lamp delivery unit.
There are many optics in this unit due to the spot size adjustment zoom system so
the losses are the greatest. Also when the small spot sizes are selected there may be
some aperture of the beam that contributes to the losses.
When setting up the laser unit for the operation, the correct type of Laser Delivery
Unit must be connected along with the Delivery Key that accompanies it. If no
Delivery Key is inserted then the warning message will be shown on LCD control
panel. Operation of the console controls will not be permissible until the correct
Delivery Key is inserted.
The Delivery Key is also an additional safety feature that prevents unauthorized use
of the laser unit. It is attached to the fiber for each of the LDU’s to eliminate any risk
of inserting the wrong Delivery Key. It is an essential requirement in order to ensure
that the correct calibrated power level is delivered to the patient.
The following paragraphs describe the actual operation of the system
The system consists of two major parts: the console and the LCD touch control panel
integrated with computer platform
Inside the Laser Console there are several operating components that put together
to provide the output Laser beam such as:
Laser Diode (808nm and 635 - 650nm)
Cavity Module / Optics system
Thermal Electric Coolers and Driver units
Electronic Microprocessor control system
Power supply
Mains power must be connected to the laser system and LCD control panel display in
order for system to have a power be activated first. Secondly, power on the LCD
control panel display first by pressing the power switch located at the bottom of the
screen and await for the system to boot up the software prior to proceed to the next
procedure (refer to fig. 4.1 - 4.2). Once the software is properly boot up, then the
key-switch is inserted and turned to the ON position (with the Emergency switch in
the out or OFF position). And then the console system microprocessor controller
will perform some internal checks to verify that the machine is functioning as it
should be. Few warning messages such as, "BBF Temperature Not Ready", "LBO
Temperature Not Ready" ...etc. may show through first on the LCD display panel
prior to go the Standby mode. If the temperature setting up process is out of
specification, there will be warming message on LCD display control panel and
eventually will show error code (for more detailed refer to troubleshooting section of
