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Ball Lenses and Half-Ball Lenses

Ball lenses belong to a special form of biconvex lenses which have the geometry of a ball(sphere). They are manufactured from a single material, usually an optical glass with good transparency in the wavelength region of interest. The typical applications of ball lenses include focusing light in the field of fibers(e.g. laser to fiber coupling ,fiber to fiber coupling), emitters and detectors.Half-Ball lenses are variants of ball lenses, they are ideal for for more compact designs.

Super Polished Substrates or Mirrors

Hangzhou Shalom EO has successfully evolved the classical super-polishing technique, the technique developed by Shalom EO could ensure roughness less than 1Å of the optics while accommodating volume quantity production.

Optical Basics: What is FOV (Field of View)

For optical imaging instruments and components, understanding the basic concept of FOV (Field of View) is fundamental for selecting the appropriate optical lenses and components that meet your specific requirements. Here Shalom EO will state the definitions, the equations, and the real-life interpretations of these concepts.

Optical Substrate Material Selection Guide

The selection of optical substrate material is a vital step to determine the best appropriate optics for your individual applications. The characteristics(optical transmission, refractive index, hardness, etc.) of representative optical materials such as N-BK7, UV Fused Silica, Zerodur Glass, Chalcogenide Glass, BaF2, CaF2, MgF2, Germanium, Zinc Selenide, ZnS, Sapphire, Silicon, alpha-bbo, calcite, YVO4, and F2 glass are introduced and compared in this article from Shalom.

Optical Basics: Spherical Aberrations and Coma

This is a short piece of explanations about spherical aberrations and coma/comatic aberrations, which belong to the wider range of optical aberrations. Straightforward and readable detailed information, illustration diagrams of the complex and intriguing concepts of spherical aberrations and coma/comatic aberrations.,

Selection Tutorial for Lens Assemblies

This is a basic tutorial and guide to help you understand some important glossaries when you are selecting Optical Lenses and Camera Lenses.

Exploration of Current Sapphire Window Production Techniques

This article is an in-depth exploration of the existing sapphire window production techniques and the prospect of innovation in the sapphire window production market. The article covers the growth method of sapphire crystals, the entire procedure, and relevant techniques of the cutting, chamfering, grinding, polishing, and cleaning of sapphire windows.

Advantages and Applications of Sapphire Windows

Sapphire Windows excel in windows made from other glass counterparts, especially in the aspects of superior surface hardness, durable qualities, and versatile functionalities. This article discusses the advantages and applications of sapphire windows.

Chromatic Aberration, Field Curvature, Distortion, Astigmatism

This article is an introduction to different kinds of optical aberrations including Chromatic Aberration, Field Curvature, Distortion, and Astigmatism, the basic definition and the principle of, and how to correct these aberrations are explained in the text.

Lens Selection Guide

This article enumerated the different lens classifications including plano-convex lens, plano-concave lens, double-convex lens, double-concave lens, meniscus lens, ball/half-ball lens, achromatic doublet lens, cylindrical plano-convex lens/plano-concave lens, rod lens, and aspheric lens, exploring their characteristics, and the appropriate context to use them.
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