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The vacuum evaporation technology of optical thin films mainly includes sputtering method and thermal evaporation method. Next, we will learn about the coating process and

As a kind of excellent optical lens, sapphire lenses has good transmittance in the ultraviolet, infrared and visible light bands, which can meet the requirements

As early as the 1950s, scientists found that the sunlight with wavelength less than 285 nm was almost completely absorbed by the ozone layer during

A spectroscope is an optical element that divides light into two parts. On the contrary, beam splitter lens can make some light pass through the

The optical coating is composed of thin layered media. It is a kind of optical medium material that transmits light beam through the interface. It

Bandpass filters are used to transmit the required wavelength range and cut off the unwanted wavelength range. Their design is essentially a thin film formed

A right-angle prism is usually used to obtain a 90-degree or 180-degree optical path bend. Right-angle prisms are widely used in cameras, projectors, periscopes, telescopes,

Polarized beam splitter prism is an optical element used to separate horizontal and vertical polarization of light. Polarized light splitter prism is an optical element

The gold-plated mirror can provide the highest reflectivity and the highest environmental stability for the infrared (IR) wavelength, which can reach 98-99% in the entire

The so-called narrowband filter is subdivided from the band-pass filter. Its definition is the same as that of the band-pass filter. That is, this filter