Supplier Announcements


Andover Corporation

Andover Corporation has promoted these products/services:

Andover Corporation - IR Gas Analysis Filters

Andover Corporation offers a standard selection of gas analysis filters at popular wavelengths from 2.7µm to 10.6µm. We can also produce custom filters at wavelengths up to 14µm. In the infrared region of the spectrum, bandpass filters are frequently used for gas analysis applications. (read more)

Andover Corporation - Surplus IR Filters

Andover maintains a stock of high-quality surplus IR bandpass and IR edge filters. These are primarily overruns of custom production lots, and exhibit the same high level of quality as all of our other products. Consequently, this can be a very economical alternative to purchasing a custom IR bandpass filter. All of these IR filters are provided with spectral data scans with exact measur... (read more)

Andover Corporation - Steep-Edge Long Pass Filters

Andover's steep-edge (1% slope) long pass filters employ magnetron sputtered hard oxide coatings to yield deep rejection and a sharp transition to very high transmission. They are deposited on Fused Silica substrates, and do not employ any absorbing filter glasses, making them suitable for high-temperature applications. Offered in three standard sizes, custom sizes available on request. (read more)

Andover Corporation - Hard-Coated Narrowband Filters

Andover's first-surface, hard-coat narrowband filters employ magnetron sputtered, hard-oxide coatings deposited on Borosilicate Glass, suitable for high temperature applications. They provide a steep transition from a high, peak transmission to OD4 blocking. Available at wavelengths from 334nm to 1550nm, including all major laser lines and atomic absorption lines. (read more)

Andover Corporation - Long Wave Pass Edge Filters

Often referred to as long wave pass (LWP) and short wave pass (SWP) filters, Andover Corporation's sharp-cut edge filters are distinguished by their high rate of transition between their region of reflection and transmission. This high rate of transition makes them an excellent choice as emission filters in fluorescence applications, and as order sorting filters in photometry. (read more)

Andover Corporation - Standard Optical Bandpass Filters

Andover Corporation offers one of the most extensive listings of standard "off-the-shelf" optical filters in this industry. Wavelengths range from the 193nm in the ultraviolet through the near infrared and include many of the primary laser, mercury, biomedical and analytical spectral lines. (read more)

Andover Corporation - Motorized Filter Wheels

Andover Corporation's filter wheels are used for a host of applications, including color CCD photography, fluorescence microscopy, and photometry. Two 4" dia, wheels are available: one which accepts six 25mm filters, and one which accepts twelve 12.5mm filters. (read more)

Andover Corporation - Dichroic Filters

Andover Corporation's Dichroic filters (color separation filters) are used in a variety of applications where it is necessary to isolate certain regions of the visible spectrum. A few of the more common applications are for use in color enlargers and photocopiers as light balancing filters. (read more)

Andover Corporation - Metallic Neutral Density Filters UV-VIS-NIR

Andover's ND filters exhibit superior spectral characteristics. They boast the tightest transmission tolerance of any ND filters on the market. Densities from 0.1 to 4.0 are available off the shelf. Custom densities and sizes are available upon request. (read more)