BD FACSCanto - Page 20

20 BD FACSCanto Flow Cytometer Reference Manual
Fiber optic cables direct the laser light onto beam-shaping prisms, which in turn
transmit the laser light to a focusing lens. The lens directs the laser light onto the
sample stream within the flow cell (Figure 1-2). See also Figure A-3 on page 110.
Figure 1-2 Optical pathway
When the flow cell access door opens, an interlock shutters the laser light and
blocks its pathway for safety reasons.
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interlock flow cell
prisms red He-Ne laser
focusing lens blue solid-state laser
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