Before cleaning the surface of the optical filter, the cleanliness of the glass surface must be checked, and the cleaning method should be selected based on this. Commonly used inspection methods are:...
Ⅰ. Reasons affecting the performance of narrow band optical filterThere are a certain number of pores in the film. Before the film is not absorbent, the pores in the film are filled by air and the re...
The World's leading trade fair for components, systems and applications of photonic successfully held in Munich, Germany, in April 2022. ECOPTIK participated in this event as an exhibitor.First of...
1. What is a narrow band optical filter?The so-called narrow band optical filter is subdivided from the bandpass filter. Its definition is the same as that of bandpass filter: this filter allows light...
1. What is the plano convex lens?The plano convex lens is a positive lens in the optical system, whose main functions are beam expansion, imaging, beam collimation, focus collimation, the collimation ...
1. What is the plane concave lens?Plane concave lens is a negative lens with a negative focal length, and the parallel light beam will diverge after incident on the plane concave lens. The outgoing li...
Dear Sirs,We cordially invite you to visit us at Laser World of Photonics 2022 in Munich, Germany, April 26 - 29, 2022. ECOPTIK is presenting Lens,spherical lens,laser windows,filters etc. as well as ...
Two orthogonal directions of a cylindrical optical lens define the reference system: the power direction and the non-power direction. The first direction is called the "refractive direction"...
Because achromatic cylindrical lenses focus colors at the same point, they enable users to focus on an image completely. Achromatic cylindrical lenses produce clearer images than uncorrected singlet l...
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