Email format error
Email cannot be empty
Email already exists
6-20 characters(letters plus numbers only)
The password is inconsistent
Email format error
Email cannot be empty
Email does not exist
6-20 characters(letters plus numbers only)
The password is inconsistent
Biconvex Lens
we are a custom convex lens manufacturer in china. Our biconvex lens is a kind of optical lens, which is widely used in binoculars, camera lenses, magnifying glasses, and other fields.
Differences and functions of different types of optical lenses
An optical lens is a kind of glass product used for retroreflection in some special industries. It is a transparent optical device that can affect the wavefront curvature of light.
There are six kinds of lenses: planoconvex lens, biconvex lens, planoconvex lens, biconvex lens, meniscus lens, and glued achromatic lens.
Planoconvex lens
A Planoconvex lens is a kind of lens with a positive focal length. One side is a plane mirror and the other side is a spherical mirror. A Planoconvex lens is an ideal choice to concentrate parallel light on a point. Planoconvex lens can converge the collimated beam on the back focus, or turn the point light source into a collimated beam. Planoconvex lens is mainly used for monochromatic light, such as a laser; This kind of lens is used to converge directional light or convert point light sources into directional light.
Flat concave lens
A flat-concave lens refers to a lens with a flat surface on one side and a concave surface on the other. The focal length of the flat-concave lens is negative, which can make the beam diverge. Therefore, it can be used to expand the beam, project light, and expand the focal length of the optical system in the optical system.
Biconvex lens
Biconvex lens means that both sides of the lens are convex, and their curvatures are usually equal. It is mainly used to converge light from point light sources or transmit images to other optical systems. Since the object distance and image distance are equal or approximately equal, the distortion can be minimized.
Biconcave lens
A Biconcave lens means that both sides of the lens are concave. The focal length of the biconcave lens is negative, which can make the beam diverge. Therefore, it can be used to expand the beam, project light, and expand the focal length of the optical system in the optical system.
Meniscus lens
Meniscus lens means that one side of the lens is concave and the other side is convex. The focal length of the meniscus lens can be positive or negative. The meniscus lens can correct the phase difference. It is usually used as a corrective lens, and it can also be used as a condenser of the lighting system. And choosing a suitable thickness can also eliminate the color difference.
Achromatic lens
The achromatic lens is composed of birefringent crystals of two different materials. Because the dispersion of the two materials is different, a relatively uniform phase delay can be achieved in a wide wavelength range. The achromatic lens can improve the influence of temperature on the lens to a certain extent, but another result is that it increases the sensitivity of the delay amount to the incident angle and wavelength.
Common positive lenses include a biconvex lens, planoconvex lens, and crescent convex (convex and concave curves are similar, and the center is thicker than the edge).
