Barium fluoride biconvex lens is a common optical element that is widely used in optical systems. Barium fluoride biconvex lenses are in the infrared spectrum as well as at 0Ideal for infrared imaging applications in the 2-12 micron range that require high transmittance. Barium fluoride has a low refractive index and enables excellent transmission from vacuum ultraviolet (VUV) to long-wave infrared (LWIR) without the need for an anti-reflection coating. These lenses have a higher resistance to high-energy radiation than calcium fluoride lenses, although they have similar physical properties. In dry environments, it can be used at temperatures up to 800°C in dry environments, but prolonged exposure to moisture will reduce transmittance in the UV range.
1. Definition: Barium fluoride biconvex lens is a lens with two convex surfaces, and both of its convex surfaces present the same radius of curvature. The lens is usually made of barium fluoride, hence the name barium fluoride biconvex lens.
2. Structure: The structure of barium fluoride double-convex lens is simple, composed of two convex surfaces, and the radius of curvature of the two convex surfaces is equal. Such lenses are usually symmetrical, meaning that the thickness of the two convex faces is equal.
Third, the working principle:
It is based on the principle of refraction of convex lenses. When light passes through a lens, depending on the shape of the lens, the light rays are refracted. In the case of barium fluoride biconvex lenses, the parallel rays passing through the lens are focused on the axis of symmetry of the lens, forming a real image. This is because the radius of curvature of the two convex surfaces is equal, giving the lens a positive refraction force to the incident rays.
4. Characteristics: Focusing ability: The mirror can focus parallel rays to a point to form a real image.
Magnification: The magnification of the lens can be adjusted by changing the radius of curvature of the lens or by changing the direction of the incident rays.
Chromatic aberration: Since the refractive index of the lens material is wavelength-dependent, barium fluoride biconvex lenses may produce chromatic aberration that affects the imaging quality.
5. Application field:
Barium fluoride biconvex lenses are widely used in many fields, including but not limited to the following:
Optical instruments: As one of the common optical components, lenses are widely used in optical instruments such as telescopes, microscopes, and photographic lenses.
Optical communication: Lenses play an important role in fiber optic communication systems to adjust the focus and diffusion of light beams.
Laser technology: Lenses are used in lasers to adjust the focus and shape of a laser beam.
Medical imaging: Lenses are often used to adjust the propagation and focusing of light in medical imaging equipment, such as X-ray machines, CT scanners, etc.
Barium fluoride biconvex lens is a common optical element with characteristics such as focusing ability and adjustable magnification. It is widely used in the fields of optical instruments, optical communications, laser technology, and medical imaging. For any specific application questions regarding barium fluoride biconvex lenses, it is advisable to further study the relevant literature or consult a professional for more detailed information.