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Bandpass Filter

Laser Focus World - June 2018

Laser Focus World - June 2018

…or bandpass filtertoblockscatteredlaserlightfromreachingthe camera or photodetector, which then only detects the Stokes-shifted fluorescence emission. The laser has a much sharper spectrum (that is, spectral width and slope) than the filter, so it's often better to work back from the filter. For…

Lasers for Optogenetics and Multimodal Microscopy

Lasers for Optogenetics and Multimodal Microscopy

…were acquired at 40 × 0.8 NA at zoom 2 using 890 nm excitation. These images were acquired in the forward detection, and isolated with a bandpass filter and detected by a single photon counting photomultiplier. (Source: Campagnola lab, University of Wisconsin-Madison) Best of Applications Issue…

book.book

book.book

…Base VIN
GND, Shield
2 BNC Tip VMOD
5 BNC Base VMOD
GND
VMOD GND
VMOD
VIN GND
VIN
)
Table 6-7. Coherent Bandpass Filters
IMAGE FILTER NAME P/N
Bandpass Filter, 485 nm to 491 nm 1266767
Bandpass Filter, 630 nm to 642 nm 1266768

Bio Photonics - November 2014

Bio Photonics - November 2014

filter with a nominal 458-nm
cutoff to block any scattered light from
the 445-nm laser beam. Dichroic beamsplitters then divide the filtered light into
two spectral components: a blue-detection
region (AF only) that is passed through a
470-nm (±14 nm) bandpass filter before…

Bio Photonics - OBIS Galaxy

Bio Photonics - OBIS Galaxy

filter with a nominal 458-nm
cutoff to block any scattered light from
the 445-nm laser beam. Dichroic beamsplitters then divide the filtered light into
two spectral components: a blue-detection
region (AF only) that is passed through a
470-nm (±14 nm) bandpass filter before…

LIT Lasers-LED NO2 Spectral-Brightness 1014.pdf

LIT Lasers-LED NO2 Spectral-Brightness 1014.pdf

…fluorochromes can then be readily distinguished by
ratio-ing the signal from multiple detectors, each with a
different longpass or bandpass filter, and, if necessary,
by pulsing the lasers and correlating the signal timing.
Figure 2. A laser is a monochromatic source whose…

3D Vision Options Drive Machine Vision Growth - Vision Online

3D Vision Options Drive Machine Vision Growth - Vision Online

…of filters to
improve contrast and protect nearby workers. In nearly all applications, a narrow bandpass filter is used in front
of each camera to block ambient light. Similarly, users are typically provided with goggles that are either based
on cutoff filters or notch filters in…

Bio Optics World - May/June 2014

Bio Optics World - May/June 2014

…size in each case is 170 × 170 µm. The images were acquired at 40X 0.8 NA at zoom 2 using 890 nm excitation in the forward detection, isolated with a bandpass filter, and detected by a single-photon-counting photomultiplier. (Images courtesy of the Campagnola lab, University of Wisconsin-Madison)

Tecnolab Cytometry 2016.pdf

Tecnolab Cytometry 2016.pdf

…pass one or more focused laser beams. The fluorescence and scattered laser light they emit are detected by photomultiplier tubes via bandpass and cut-off filters, and their correlated signals are used to count and classify the particles. The fluorescence can be due to fluorochromes attached to the…

Microsoft Word - 5694-20 submitted.doc

Microsoft Word - 5694-20 submitted.doc

…clinical diagnostics. The central part of any spectral imaging system is a wavelength selective element, whether it be a filter wheel, an interferometer, or a tunable bandpass filter1. All these methods need some type of scanning mechanism, either spectral or spatial, to complete the image cube.…