Capturing Images In Non-Visible Light Spectrums

High resolution lenses for machine vision — standard and custom lens design

Capturing Images In Non-Visible Light Spectrums

High Resolution Lenses for machine vision, instrumentation, inspection and vibration-sensitive applications. Standard and custom hi-res lens assemblies.

Taking photographs and capturing images in the visible light spectrum means capturing an image that falls within the electromagnetic radiation spectrum and within light that is visible to the human eye. The spectrum ranges in wavelengths from 400 nanometers to 700 nanometers is also called the optical spectrum of light.

Wavelengths are related to energy and frequency and determine the color that is perceived by the human eye. In some instances the wavelengths are dramatic and in others the colors blend seamlessly from one to another along the edges of the visible light spectrum. At opposite ends of this are the ultraviolet and infrared levels of radiation and wavelength frequency.

The majority of light that humans perceive is in the form of white light as this contains most of the wavelength ranges in the spectrum. When a white light is shone through a prism the wavelengths bend at various angles because of the optical refraction and this leads to the resulting light being split across the visible light spectrum. Consider that this is the way a rainbow is formed once you add airborne water particles into the mix as they act as the refractive medium.

Through the use of refractors and filters narrow bands (approximately 10 nm) of wavelengths can be captured and that is in the monochromatic light spectrum; lasers fall into the monochromatic light spectrum.

In addition to capturing images in visible light, Universe Optics has designed s quartz lens that allows for image capture in the non-visible light spectrum. These lenses are ideal for industrial, forensic, scientific and other imaging applications that need to operate in low light to no-light settings. The quartz lenses are also able to transmit well into the infrared spectrum as well.