What are the advantages and optical properties of optical lenses?

Optical lens is a very familiar optical element, which belongs to passive optical element, which is used to converge and diverge optical radiation in optical system. Usually the size of the lens is relatively large, which can be seen by the human eye. Following the law of refraction, the knowledge of geometric optics can be used to study their optical properties. What are the advantages and optical properties of optical lenses? content, welcome to read!

Advantages of Optical Lenses:

The advantage of optical lenses is that the imaging is visible to the naked eye. Except for a few optical lenses that use special light sources (such as X-rays), whether it is a microscope, a camera, or a searchlight, the optical image formed can be directly observed by the naked eye;

• Generally, the optical lenses that are produced are often made of acrylic materials.
• When designing an optical lens, it can be very simple.
• The manufactured optical lens generally has lower cost, lighter weight, shorter time and higher light transmittance.
• The three points mentioned above are the advantages that the finished optical lens can have.

Optical properties of convex and concave lenses:

The combination of a convex lens and a concave lens is mainly to compensate for aberration. It can be seen simply from the spherical aberration. The convex lens produces negative spherical aberration, and the concave lens produces positive spherical aberration. Putting the two lenses together can reduce the influence of spherical aberration. The same is true for other aberrations. of. The convex lens can concentrate the light by refraction, and can refract the light source at the focal point into parallel light and so on.

Convex Lens:

The light emitted from the focal point is parallel to the main optical axis and the light emitted along the main optical axis is emitted parallel to the main optical axis, and the light emitted parallel to the main optical axis along the main optical axis will converge to the focus

concave lens:

The light emitted parallel to the main optical axis will diverge, and the reverse extension line of the divergent light will be concentrated at the virtual focus, and the light emitted by the virtual focus will be emitted along the main optical axis. virtual focus, then the beam of light will exit in parallel.