optical interference filters - SPOT Imaging Solutions

QuantaMAX and Standard Filters
for Fluorescence
design of these filters also offers the benefit of an increased ability
to attenuate off axis rays such as those found in instruments using
high system speeds or less than optimally collimated light sources
such as light emitting diodes (LED).
Dichroic mirror substrates utilize UV-grade fused silica to take
advantage of the high level of internal uniformity of this glass,
therefore offering excellent transmitted wave-front distortion
(TWD) and transmission values across the operational range of the
substrate.
of contrast is to minimize non-specific light from reaching the
detector. A typical research grade CCD camera has a quantum
efficiency range from ~350-1100 nm. By designing each filter
to offer near band blocking of ≥ OD 6, and extended blocking to
> OD 5, QMAX filters offer outstanding noise suppression though
the entire integrated range of the detector.
Figure 3
Optical Density curve of XF407 set
QuantaMAX - Stock filters are available for immediate shipment;
25 mm round emission and excitation and 25.7 x 36 mm dichroic.
Additional sizes are available upon request.
Spectral Performance:
Single fluorophore QuantaMAX interference filters and filter sets
provide 90% minimum transmission across the pass-band, and
routinely exhibit values greater. When using a sensitive detection
technique such as fluorescence, a key to achieving high levels
Optical Density
Wavelength
vivid and basic - Standard interference Filters
Vivid and Basic - Standard interference filters and filter sets may
be comprised of our speedy small volume manufacturing process
or large component inventory. They are not immediately available
off-the-shelf but are available to ship in 5 business days (expedited
deliveries are available upon request), and are customized to your
physical and spectral requirements. Applications involving novel
fluorophores or multiplexing systems where customized bandwidths
are a must are examples of where a product from the standard filter
program can be offered to optimize the system performance. The
strategy of small lot builds and the incorporation of off-the-shelf
components provides for filters of nearly any characteristic to be
produced in a fast and economical fashion.
Vivid Filters:
The Vivid product line utilizes a proprietary method of monitoring
and controlling the coating process. This technology yields filters
with exceptionally high signal to noise and steep transistion slopes,
making them suitable for demanding applications. Vivid filters offer
precise and accurate location of cut on and cut off edges with
tolerances of +/- 0.01 – +/- 0.05 % of the 50% wavelength edge.
Basic Filters:
The Basic filters offer excellent performance at a reasonable
cost. These filters and filter sets are optimized for the specified
application and utilize multi-cavity, Fabry-Perot designs to achieve
a rectangular bandpass shape with very steep edges and deep
blocking up to OD6 outside the passband.
Flexible and efficient manufacturing:
Vivid and Basic - Standard interference filters are assembled from
our component inventory library of thousands of filter and blockers,
along with our speedy turn-around manufacturing capabilities, to
provide solutions for unique applications. Some examples of these
applications are narrow band Quantum dot specific filters, ratio
imaging filters, UV activated photo-switchable proteins, along with
many of the less commonly used fluorophores such as Indocyanine
Green. These products will meet the requirements for both industry
and research where a stock catalog part may not provide the ideal
characteristics for the application and without the added cost of a
custom manufactured filter and associated lead times.
Specifications:
Vivid and Basic - Standard filters are designed to functional
specifications of the best optical performance at a reasonable
price and delivery. Typically, standard band-pass excitation filters
reach minimum 75 % transmission. Standard filters that do not
require extended blocking can exhibit up to 80-90 % transmission.
Standard long and short-pass filters will average > 90 % transmission
over the specified operating spectral range. All imaging filters are
polished to ≥ 15 arc seconds parallelism and anti-reflection coating
applied to minimize deviation and reflection. Dichroic mirrors are
built on the same high quality substrate material as those in the
stock program for imaging qualities.
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For current product listings, specifications, and pricing:
www.omegafilters.com • sales@omegafilters.com
1.866.488.1064 (toll free within USA only) • +1.802.254.2690 (outside USA)