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58
SMD Components
9.6.1
Attenuation Unit
The laser coupling module contains an attenuation unit which enables a graduated and
continuous intensity attenuation via two different elements: a filter wheel and a scaffold
(
).
Using the filter wheel, the attenuation is adjustable in three steps (between four positions)
by replacing the filter in the beam paths:
• 0 = 100 % transmission
• 1 = 10 % transmission
• 2 = 1 % transmission
• 3 = 0.1 % transmission
The additional scaffold allows a continuous attenuation (100 % to 0 %) by clipping the laser
beams. The scaffold is controlled by a micrometer screw and enables precision control of
the intensity.
Note that the attenuation unit is placed in a position where all laser beams come through.
This ensures that the attenuation of the ND filters (neutral density filters) is equal for all
beams. However, the attenuation achieved with the scaffold can be different for the specific
laser beams due to differences in the shape and orientation of the beam profile.
Figure 26:
Attenuation unit with filter wheel and scaffold.
Summary of Contents for TCS SP8 SMD
Page 1: ...10 Living up to Life User Manual Leica TCS SP8 SMD for FCS FLIM and FLCS ...
Page 4: ...4 Copyright ...
Page 14: ...14 Contents ...
Page 18: ...18 Intended Use ...
Page 20: ...20 Liability and Warranty ...
Page 28: ...28 General Safety Notes ...
Page 32: ...32 Additional Notes on Handling the System ...
Page 44: ...44 System Overview and Properties ...
Page 60: ...60 SMD Components Figure 31 DSN 102 Dual SPAD Power Supply ...
Page 80: ...80 Safety Features ...
Page 102: ...102 Switching On the System ...
Page 116: ...116 LAS AF ...
Page 214: ...214 Changing the Specimen ...
Page 216: ...216 Changing the Objective ...
Page 238: ...238 Switching Off the System ...
Page 242: ...242 Repairs and Service Work ...
Page 244: ...244 Maintenance ...
Page 246: ...246 Disassembly and Transport ...
Page 248: ...248 Disposal ...
Page 254: ...254 Contact ...
Page 256: ...256 Recommended Literature ...
Page 266: ...266 Appendix Figure 225 Declaration of conformity ...
Page 268: ...268 Appendix ...
Page 269: ......