LAMBDA DG-4 & 5 PLUS/USB OPERATION MANUAL – REV.
2
intensities at each wavelength. This adjustment is difficult to obtain in variable wavelength
devices with a single optical path. Unlike monochromators and other wavelength selective
systems, the Lambda DG-4/5PLUS/USB can be used as a source of white light when
required.
The optical path subsystem in the Lambda DG-4/5PLUS/USB is arranged so that 2 mirrors,
each mounted on a fast closed-loop servoed galvanometer, can route the collimated output of
the lamp through one of 4 or 5 optical paths (e.g., filter position 1 in the diagram below).
Slide-in filter holders allow 25 mm (1 inch) diameter filters to be introduced in each of the
four optical paths. An additional slide-in filter holder, intended for neutral density filters, is
located in a portion of the optical system common to all light paths. After passing through
the filter positions, the lamp output is focused on a 2-meter long UV (ultraviolet)
transmitting light guide, which acts as a conduit for the output to the microscope. At the
output of the light guide, an optical adapter collects the output and delivers it to the
microscope.
Figure 1-1. Lambda DG-4 optical pathway.
Included with each system is a set of four slide-in filter holders. If you wish to quickly replace
any installed filter from a set of many filters, you may wish to order additional slide-in filter
holders.
1.3
Differences between the Standard Lambda DG-4/5, the DG-4/5PLUS, and the
DG-4/5PLUS/USB
Both versions of the Lambda DG-4/5 are the same except that the “PLUS” version has the
following advantages:
Summary of Contents for Lambda DG-4Plus/USB
Page 3: ......
Page 4: ......
Page 16: ...LAMBDA DG 4 5 PLUS USB OPERATION MANUAL REV 1 01B3 20190607 4...
Page 46: ......
Page 70: ......
Page 76: ...LAMBDA DG 4 5 PLUS USB OPERATION MANUAL REV 1 01B3 20190607 64 This page intentionally blank...
Page 78: ...LAMBDA DG 4 5 PLUS USB OPERATION MANUAL REV 1 01B3 20190607 66 This page intentionally blank...
Page 94: ...LAMBDA DG 4 5 PLUS USB OPERATION MANUAL REV 1 01B3 20190607 82 NOTES...
Page 98: ...LAMBDA DG 4 5 PLUS USB OPERATION MANUAL REV 1 01B3 20190607 86 NOTES...
