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Unmounted bandpass filters are optical components used to isolate specific wavelengths while blocking others, designed for integration into systems without a protective housing. Commonly fabricated from hard-coated dielectric, colored glass, or interference materials, they are ideal for applications in machine vision, fluorescence, and laser line separation.
This video explains how optical bandpass filters work:
Key Features & Applications
- Structure: Available as uncoated, coated, or hard-coated dielectric substrates, usually circular with standard diameters of 12.5mm or 25mm.
- Performance: Typically offers deep Optical Density (OD) 4.0 or greater blocking outside the passband.
- Applications: Ideal for imaging, life sciences, chemical detection, and laser diode cleanup.
- Mounting: Designed to be mounted in filter mounts, lens tubes, or integrated directly into assemblies.
Top Manufacturers
- Edmund Optics: Offers a wide selection of TECHSPEC® filters, including 10nm, 25nm, and 50nm FWHM options for UV, visible, and NIR spectrums.
- Thorlabs: Provides 25mm diameter unmounted filters fabricated from Schott colored glass.
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Web results
Unmounted Bandpass Colored Glass Filters
Thorlabs
https://www.thorlabs.com › unmounted-bandpass-colore...
Thorlabs
https://www.thorlabs.com › unmounted-bandpass-colore...
Ø25 mm Unmounted Bandpass Filters · Mountable with Filter Mounts or Lens Tubes · Fabricated from 2 mm Thick Schott® Colored Glass · Also Available in an SM1- ...Read more
Unmounted OD 4.0 Bandpass Filters
Edmund Optics
https://www.edmundoptics.com › unmounted-od-40-ba...
Edmund Optics
https://www.edmundoptics.com › unmounted-od-40-ba...
TECHSPEC Unmounted OD 4.0 Bandpass Filters with 10, 25, or 50nm FWHM and are used in life science and imaging applications. ✓ Shop now with Edmund Optics!
Unmounted Fluorescence Bandpass Filters
Edmund Optics
https://www.edmundoptics.com › unmounted-fluoresce...
Edmund Optics
https://www.edmundoptics.com › unmounted-fluoresce...
TECHSPEC Unmounted Fluorescence Bandpass Filters are ideal for use in life science devices such as PCR instruments. ✓ Shop now with Edmund Optics!
Edmund Optics Bandpass Filter - #15-168
MEETOPTICS
https://www.meetoptics.com › ... › Dielectric Filters
MEETOPTICS
https://www.meetoptics.com › ... › Dielectric Filters
TECHSPEC® Unmounted OD 4.0 Bandpass Filters offer center wavelengths from 365 to 1550nm with 10, 25, or 50nm FWHM options. These filters provide high ...Read more
$295.00In stock30-day returns
Custom Unmounted Bandpass Filter ...
UNI Optics
https://www.uni-optics.com › unmounted-bandpass-filter...
UNI Optics
https://www.uni-optics.com › unmounted-bandpass-filter...
A band pass filter is a device that passes frequencies within a certain range and rejects (attenuates) frequencies outside that range, and it's used to ...Read more
Unmounted Optical Filters
MidOpt
https://midopt.com › Media
MidOpt
https://midopt.com › Media
A brief tutorial which highlights MidOpt's unmounted optical filters, extensive array of custom capabilities, and a step-by-step demo on how to build your ...Read more
Unmounted, AR-Coated Bandpass Colored Glass Filters
Thorlabs
https://www.thorlabs.com › unmounted-ar-coated-bandp...
Thorlabs
https://www.thorlabs.com › unmounted-ar-coated-bandp...
The high-performance, multilayer, broadband -UV or -A coating deposited on each filter is designed to minimize surface reflections within the specified range, ...Read more
850nm Bandpass Filter
Commonlands Optics
https://commonlands.com › Optical Filters
Commonlands Optics
https://commonlands.com › Optical Filters
Our CBP850 filters are affordable unmounted single notch 850nm bandpass filters. We offer these filters in multiple sizes, with customization available. $12.00.Read more
$9.00 to $12.00In stockFree delivery over $1,00030-day returns
UV BANDPASS FILTER UNMOUNTED 49mmØ
eBay
https://www.ebay.com › ... › Lenses & Filters › Filters
eBay
https://www.ebay.com › ... › Lenses & Filters › Filters
Dimensions: 49mmØ x 2.9mm; Transmission >40% 300-400nm; Blocking T%<0.25% 410-1100nm; Unmounted. Can resize if requested for $50 each.Read more
$34.95$7.95 delivery
650nm CWL, 25mm Dia., Hard Coated OD 4.0 50nm Unmounted ...
Edmund Optics
https://www.edmundoptics.com › 650nm-cwl-25mm-di...
Edmund Optics
https://www.edmundoptics.com › 650nm-cwl-25mm-di...
TECHSPEC Unmounted OD 4.0 Bandpass Filters with 10, 25, or 50nm FWHM and are used in life science and imaging applications. ✓ Shop now with Edmund Optics!