Month: September 2024

Diffractive Optical Elements (DOEs) are special optical elements that use the principle of light diffraction to control the wavefront of light waves. They achieve specific optical functions by changing the phase, amplitude, or direction of incident light through precisely designed microstructure…

The basic principle of light absorptionWhen light (which can be viewed as a series of photons) shines on a substance, the electrons in the substance can absorb the energy of the photons. If the energy of a photon matches the energy…

Method of producing monochromatic lightFiltering method: By using filters or optical filters, all light rays except for specific wavelengths are filtered out from white light or broadband light sources to obtain nearly monochromatic light. This method is simple and easy to…

Visible light, like all electromagnetic waves, exhibits wave particle duality. It can be viewed as both a wave (exhibiting phenomena such as refraction, reflection, interference, and diffraction) and a particle flow composed of photons (exhibiting quantum properties such as photoelectric effects)….

The basic principle of polarizer operation is to use substances to have different absorption or propagation properties for light waves with different polarization states. According to the working principle and structure, polarizers can be divided into the following types: Absorption type…

Polarized light can be generated in various ways, including reflection and refraction. When natural light is incident on the surface of one medium, the reflected and refracted light is partially polarized. Especially when incident at Brewster’s Angle, the reflected light is…

The basic principle of a phase plate is to use the difference in the propagation speed of light between different materials to achieve a change in phase. When light waves pass through materials with different refractive indices, the phase of the…

The working principle of Fresnel lens is based on the refraction of light. By decomposing the continuous surface of a traditional convex lens into a series of planes with different tilt angles (i.e. steps), each step can refract light towards the…

Each small lens of a compound eye lens can independently collect and focus light, and then these focused light rays work together to form a whole image or achieve specific optical effects. This structure allows compound eye lenses to achieve efficient…

The physical and chemical properties of calcium fluorideHardness: The Mohs hardness of calcium fluoride is relatively low, about 4, which means that care should be taken during handling and processing to avoid scratches.Thermal stability: It has good thermal stability and thermal…