2.0" x 2.0", FL 0.79", IR Fresnel Lens

Fresnel lenses are composed of a series of concentric grooves etched into one side of a sheet of plastic. Fresnel lenses are unlike typical spherical or aspherical optical lenses.

Optical Engineer Andrew Fisher explains how you can see the "invisible" light, or infrared light, from your own TV remote.

Meniscus lenses offer superior performance compared to plano convex lenses in IR applications. Find out the benefits of using a meniscus lens at Edmund Optics.

Using an Infrared Application? Discover the importance of choosing the right material and comparisons of each at Edmund Optics.

When doing basic imaging, how do you determine the magnification an optical lens will provide?

Although a common misconception, individual optical lenses do not always form an image when the object plane is placed a focal length away from the lens.

UV grade fused silica is ideal for UV and visible applications, but IR grade fused silica has better transmission in the IR due to a lack of OH- impurities.

Have a question about short-wave infrared (SWIR)? Find definitions, application uses, and examples at Edmund Optics.

Are you trying to gauge depth of field in your imaging system? Take a closer look at this article on depth of field calculations at Edmund Optics.

Hyperspectral and multispectral imaging are imaging technologies that capture information from a broader portion of the electromagnetic spectrum.