Product Announcements: Optical Bandpass Filters

Andover Corporation offers two filter sets for verifying the transmittance and absobance scales of visible absorption spectrophotometers with maximum bandwidths of 2.2nm and 6.5nm. Each set contains 3 glass filters for the verification of transmittance and 1 clear holder for use as a balancing filter. (read more)

Andover Corporation specializes in custom interference filters made to your custom needs and specifications. Great pricing and quick turn around will separate Andover from the rest! (read more)

Andover offers one of the most extensive listings of standard off-the-shelf interference filters in this industry with center wavelengths ranging from 193nm to 14µm (read more)

By utilizing single substrate coating techniques, your imaging and monitoring systems no longer need to settle with 70% transmission rate filters. (read more)

Many applications such as astronomical observations, television monitoring systems and high resolution photography require image quality components for optimum system performance. (read more)

Andover Corporation is now manufacturing custom IR bandpass filters at 10.6 µm. (read more)

Classic interference filters which will pass light of a narrow bandwidth/ wavelength and reflect/ block all other light. In principle interference filters can be designed and manufactured to almost any specification of centre wavelength and band pass. (read more)

Band-pass filters are usually divided in two groups: 1. Broadband pass filters, and 2. Narrowband pass filters. Although there are no bandwidth values that define narrow or broad filters in UV or visible or in IR, it is common to consider filters that have bandwidth 2% or less of the central or peak wavelength as narrowband. (read more)

REFLECTION SYSTEM CENTERED AT 157 nm (NOTCH FILTERS) (read more)

Andover Corporation offers standard and custom filters for astronomical observation. (read more)