Overview of the Spotlight Imaging System . 33
Viewing in Transmittance
When the imager is in viewing mode in transmittance (Figure 10):
•
The lower fold mirror, beneath the cassegrains, receives light from the LED source and
directs it up through the lower dichroic mirror onto the lower cassegrain.
•
The lower cassegrain condenses the beam to an appropriate size for a microscopic
sample and focuses it at the sample position.
•
The upper cassegrain collects light from the sample and sends it upward through the
aperture and the upper dichroic mirror.
Figure 10 Path of the visible beam for viewing a sample in transmittance
Detector
Camera
Mirror pair
Visible focus
lens assembly
Dichroic mirror
Variable aperture
Upper cassegrain
Sample position
Lower cassegrain
Lower dichroic mirror
Lower fold mirror
Lower mirror assembly
LED
Summary of Contents for Spotlight 400 Series
Page 1: ...Spotlight 400 Series User s Guide MOLECULAR SPECTROSCOPY...
Page 6: ......
Page 7: ...Introduction...
Page 13: ...Warnings and Safety Information...
Page 26: ...26 Spotlight 400 Series User s Guide...
Page 27: ...Overview of the Spotlight Imaging System...
Page 39: ...Getting Ready to use the Imaging System...
Page 46: ...46 Spotlight 400 Series User s Guide...
Page 47: ...Preparing Samples...
Page 62: ...62 Spotlight 400 Series User s Guide...
Page 63: ...Techniques for Collecting IR Images and Spectra...
Page 94: ...94 Spotlight 400 Series User s Guide...
Page 95: ...Maintenance...
Page 106: ...106 Spotlight 400 Series User s Guide...
Page 107: ...Appendices...