Linear Variable Filters

Linear variable filters combine short and long wave pass filters into one convenient device to simplify measurement processes and reduce costs. Each filter changes in thickness along a linear path. Moving the filter affects the spectral response and allows different frequencies to pass through it. As a result, linear variable filters offer incredible versatility in numerous applications.

The Optical Filter Shop has linear variable filter options for visible (VIS) or 400-700 nm, near-infrared (NIR) or 550-1,000nm and ultraviolet (UV) or 300-330nm light. Purchase linear variable filters for affordable rates and comprehensive by-application customization options.

Features and Benefits of the Filter

Linear variable filters contain fused silica substrates with a coating to filter either VIS, NIR or UV light. The result is a series of durable filters that permit minimal autofluorescence.

The filters gradually become thicker along the gradient axis. The difference in thickness shapes the filter’s light transmission to specify particular frequencies along the filter’s compatible range:

• VIS filters can transmit frequencies between 400 and 700nm.
• NIR filters allow frequencies between 550 and 1,000nm.
• UV filters pass light between 300 and 330nm.

Our linear variable filters are durable and versatile, with durable materials and broad filtering capabilities. We design each filter to provide the strongest light transmission while setting a robust block against undesired frequencies. Our filters enable greater measurement precision for accurate calculations and analysis. A single filter will fulfill all of your needs within its frequency range, saving you time and money purchasing multiple filters and swapping between them for different applications.

Applications

As some of the most versatile bandpass filters, linear optical filters are useful in numerous industries. Any laboratory performing spectroscopy or hyperspectral imaging processes can improve efficiency by using a single filter for numerous observation subjects. Common applications include material identification, gas analysis, hyperspectral imaging, wavelength sensing and more.

Purchase a linear optical filter to access a single solution for any measurement that requires a specific wavelength, frequency range or excitement energy. Our linear variable filters are ideal for:

• Analytical chemistry.
• Medicine.
• Biochemistry.
• Forensics.
• Geology.
• Astronomy.
• Engineering.
• Food processing.

Why the Optical Filter Shop?

The Optical Filter Shop is a leading source for linear variable filters and similar products that separate light for data collection or analysis. Our store is unique in that we manufacture every filter we sell. As the original manufacturer, we can ensure you receive durable, versatile products by controlling each production phase.

We offer customer filter designs for the most specific applications. Our customer service team can tailor a filter to transmit your desired frequency range or fit your equipment’s exact specifications. Choose the Optical Filter Shop for total confidence in your linear variable filter.

Order Linear Variable Filters Online

A linear variable filter can meet the needs of numerous fluorescence and imaging applications. To place your order, select the frequency range you need to add it to your cart, then proceed to checkout. Our customer service staff can help you select the right filter for your application. Contact us online today!