Nikon TIRF - Laser Unit Components and Safety; ND Filter Slider for Intensity Adjustment; Critical Caution Label on Laser Unit

I Name and Function of Each Part
5 Laser unit
- 17 -
I
(1) Air-cooled argon laser
(2) He-Ne laser
(3) He-Ne laser, Solid-State laser
(4) ND filter slider
Use this slider to change laser emission
intensity.
The following shows the relationship
between the slider position and the
percentage of the laser beam transmitted
through the filter.
Filter type Slider position and percentage
IN OUT
ND4 25% 100%
ND8 12.5% 100%
(5) Inlet for excitation light optical-
fiber cable
This inlet accommodates the optical-fiber
cable for excitation light.
(6) Caution label (CAUTION)
Removing the cover to inspect the unit
may result in exposure to laser beam and
eye injury. Never attempt to remove the
cover.
OUT: Pull out
IN: Push in
Three-laser unit
(4) ND filter
slide
r
(5) Inlet for excitation light
o
p
tical-fiber cable
(6) Caution
label
(2) He-Ne laser
(3) He-Ne laser,
Solid-State laser
(1) Air-cooled
argon laser
Two-laser unit
(1) Air-cooled
argon laser
(5) Inlet for excitation light
o
p
tical-fiber cable
(2) He-Ne laser
(3) He-Ne laser,
Solid-State laser
(2) He-Ne laser
(4) ND filter
slide
r
(6) Caution
label