Nowadays, with the continuous development of production technology, there are various new types of glass, which have more and stronger functions and gradually replace ordinary
Glass that can change the propagation direction of light and the relative spectral distribution of ultraviolet, visible or infrared light. In a narrow sense, optical
Main differences between optical glass and ordinary glass: Optical glass has high transparency, high physical and chemical uniformity and specific and accurate optical coefficient Physical
Optical glass is a glass with high homogeneity, which becomes a material for optical elements that transmit images through reflection and refraction of light such
Many people know that glass is widely used. Ordinary glass is what people contact more, and people pay more attention to optical glass around us.
1. Related concepts of cold reflection Cold reflection is a common stray light effect in cooled infrared system. The cooled infrared detector usually works at
Some people may think that in the modern era of digital photography, neutral density and polarization filters are not needed. Okay, No. Although many filters
Neutral density (nd) filter: it can attenuate the light intensity. After passing through the neutral density filter, the light from the visible light region to
Dichroic filter is a very accurate color filter, which is used to selectively pass through light and reflect other colors from a small range of
Long wave pass filters are inseparable from our lives. Today, let’s take a look at the filters in our lives and where they are? For