Specialist in SWIR imager Indium Gallium Arsenide (InGaAs) imaging technology, GHOPTO IR camera manufacturer supplies a wide range of high-quality infrared cameras for sale covering the spectrum from 900nm-1700nm or 400nm-1700nm at a good SWIR camera price. As one of the leading swir camera manufacturers in the world, our short wave ir camera SWIR includes 1D linear arrays and 2D focal plane arrays & extended wavelength response imaging using advanced SWIR imager technology, showing the excellent SWIR infrared performance with quality InGaAs linear image sensor. SWIR camera applications include surveillance, security, machine vision, line-scan inspection, process monitoring, laser beam profiling, and scientific research.

How doesa Fresnel lenswork

According to Smithsonian magazine, the first Fresnel lens was used in 1823 in southwest France near the mouth of the Dordogne River; its light could be seen from more than 20 miles. Nobska’s first Fresnel lens was installed 18 years later in 1841. The current lens was installed in 1888.

High-quality glass Fresnel lenses in lighthouses were considered state of the art in the late 19th and through the middle of the 20th centuries; most are now retired from service. However, the technology, in updated form, has many and varied uses including in car head lights, optical landing systems, and for production of solar energy.

Fresnel LensSheet

Fresnel Lensprice

In plastic sorting, depending on SWIR-based spectroscopy for sorting plastics, GHOPTO Techs industrial infrared ingaas cameras are widely used in the waste-collecting industry.

Short wave infrared camera produced by GHOPTO Techs, one of the leading SWIR camera manufacturers in the world, can easily observe the liquid level or filling level through the plastic, which can improve the bottle industry's efficiency and quality using SWIR contactless machine-vision.

Fresnel produced six sizes of lighthouse lenses, divided into orders based on their size and focal length. In modern use, these are classified as first through sixth order with the sixth order the smallest.  Nobska’s current Fresnel lens, pictured to the right, is a fourth order lens, a substantial size.

As one of the leading SWIR camera manufacturers in China, our SWIR infrared cameras are known for their reliable quality. The swir image sensor can be used in inspecting semiconductors such as silicon bulk ingots, and sliced wafers.

Fresnel Lensfor sale

What is a fresnel lensused for

Nobska's lens is in good working order and can be seen from the grounds - and up close if you climb the lighthouse tower.

Contactless machine-vision inspection using GHOPTO Techs SWIR infrared cameras can help solar cell producers inspecting their photovoltaic products, such as processed layers, and photovoltaic cells.

Pronounced "frennel" or "fraynel", a  Fresnel lens is a type of compact, multi-faceted lens originally developed by French physicist Augustin-Jean Fresnel for lighthouses. The design allows the construction of lenses of large aperture and short focal length without the mass and volume of material that would be required by a lens of conventional design.  A Fresnel lens can capture more oblique light from a light source, thus allowing the light from a lighthouse equipped with one to be visible over greater distances.

GHOPTO Swir Cameras are top-of-the-line and feature the latest in imaging technology. With a range of features, customization options, and a competitive SWIR camera price, we are sure to have a product that fits your needs. Please contact us so we can provide you with a quote tailored to your requirements for short wave infrared cameras and image sensor accessories.

Linear arrays, and 2-dimensional focal plane arrays (FPAs) are widely used in the realm of spectroscopy of the agricultural industry.