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The snap-in camera modules for the SVM340 include
a CCD camera, optional fluorescence filter and threading for standard
DIN microscope objective:
Black and White Module High
sensitivity analog black & white
camera with 640 x 480 pixels,
600 lines of resolution, 30 frames per second.
Color Module Bayer-pattern
analog color camera with 640 x 480 pixels,
490 lines of resolution, 30 frames per second, S-Video output.
The SVM340 illuminator offers four selectable LED channels
which can be used independently or simultaneously. You can specify
the color for each channel from the following LED wavelengths:
Blue: 464-476 nm
Green: 520-535 nm
Red: 615-636 nm
White
Custom wavelengths are also available.
The SVM uses 12.5 mm diameter long
pass filters. Filters are available through LabSmith in
wavelengths of 515nm,
530nm, 550nm, 570nm, 590nm, 610nm, 630nm and 665nm.
The SVM accepts standard DIN objectives and can accommodate magnifications
up to 20X. The following objectives are available trhough LabSmith:
| Power |
Numerical Aperture |
Working
Distance |
Focal
Length |
Field
of View |
| 4X
|
0.10 |
15.97
mm |
31.0
mm |
1.5
x 1.5 mm |
| 10X |
0.25 |
6.3
mm |
16.76
mm |
0.6
x 0.6 mm |
| 20X |
0.40 |
3.3
mm |
8.55
mm |
0.3
x 0.3 mm |
The standard stainless steel stage plate has
a 50 x 75 mm opening for easy sample viewing. An optional
plate is available with two openings of 20 x 32 mm and
22 x 66 mm for smaller chips.
The SVM340 illuminator and filter options can
be configured for particular applications. For example, when working
with fluorescein particles the SVM340 illuminator can be equipped
with one channel of white LEDs (to
view the channels and chip during setup) and three blue LED channels
(to excite the fluorescein particles). A 530 nm filter and black
& white camera are also suggested.
| Application |
Illuminator |
Camera Module |
Filter |
Fluorescein |
3
blue channels & 1 white channel |
Black & White |
530 nm |
Rhodamine |
3
green channels & 1 white channel |
Black & White |
515 or 530 nm |
Colored Dyes |
1
blue, 1 green, 1 red, & 1 white channel |
Color |
None |
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