plano concave lens is composed of a plane and a concave sphere, which can produce negative spherical aberration. It is often used in the system to expand the beam or increase the focal length to balance the deviation of other lenses. It can be used in photographic system, projection system, imaging system, optical viewfinder and laser measurement system. We can make ingredients, processing and coating according to your size requirements. Please contact our sales team for details.
·The processing materials include colorless optical glass, laser crystal, fused quartz, anti-radiation glass, ultraviolet and infrared materials, and metal materials.
·Strict dimension standard control.
·The coating can be customized according to requirements.
Flat concave lens
Negative focal length
Correction of incident light
Only become a virtual image
Minimize spherical phase difference, divergence and distortion at negative infinite or near-negative infinite rate of change
The edge of this lens is thicker than the center, and one side is flat. Flat-concave lenses are used in optical systems to diverge beams and increase focal length. It is often used for beam divergence of high peak energy pulsed lasers. A beam of light incident on the concave surface will focus at a point outside the instrument.
Sometimes unexpected focusing may occur, which may lead to air overheating or ionization, or even affect the waveform and damage the instrument. To prevent this from happening, it is necessary to turn the lens over so that the concave side is away from the parallel beam.
As required, flat and concave lenses can be used for antireflection coating and other film systems. Please visit our official website to view the coating.
Flat-concave lenses are suitable for beam expansion, light projection, or for enlarging the focal length of optical systems. A flat concave lens has a concave side, which is a lens with a negative focal length. The flat and concave lens should face the plane to the focal plane to be processed. Therefore, flat and concave lenses are suitable for various applications or industries.
Hanzhong Borisun Optics Co., Ltd. has a stock of conventional optical components in stock. The products include a variety of flat and concave lenses. At the same time, we can accept various customer requirements for customization. We provide flat and concave lenses with various antireflective films. The antireflective film can optimize the luminous flux of ultraviolet, visible or infrared spectrum. The antireflective film flat and concave lens is specially designed for 0 ° incidence angle. In addition, our company also provides flat and concave lenses with UV fused quartz substrate, which can achieve higher performance in the UV spectrum. UV fused quartz substrate is suitable for ultraviolet imaging or laser applications.