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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.
LWIR Imaging VS MWIR Imaging, Which is Better?
This article is a thorough comparison of the differences and features of LWIR and MWIR thermal imaging cameras, comparing the emittance and thermal contrast in the two spectral regions, the impact of climate/thermal effects, LWIR and MWIR thermal imaging camera lenses, costs, and applications.
What are Thermal Camera Lenses
This article is a basic introduction to Thermal Camera Lenses, which refers to the lens components used for infrared thermal imaging.
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.,
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.
Chalcogenide Glass
Along with the development of LWIR Thermal Imaging configured with Uncooled FPA detectors, lenses made from Chalcogenide glass are emerging as a major role in an extensive range of industries and domains, including gunsight, missiles surveillance, security, etc. The properties, data sheets, the cross-reference chart, and uses of Chalcogenide Glass are given in the article from Shalom EO.
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.
What is Second Harmonic Generation (SHG)
The application of the Second Harmonic Generation (SHG) technique is boosting currently. The technique has been utilized extensively as a measure to obtain laser light with short wavelengths which are not directly procurable, for example, 532nm green output for Nd: YAG lasers, or ultra-violet lights with further SHG. The equations and definitions of second harmonic generation are given in this article to deliver an elaborate theoretical explanation about shg.
Corning Eagle XG
Corning Eagle XG is a synthetic Alkaline Earth Boro-aluminosilicate glass designed for Liquid Crystal Display (LCD) and other electro-optical applications. Eagle XG glass features low density, 92% transmission in the visible spectrum, an extremely smooth surface, and impressive strength to allow thinner and larger dimensions. The glass also has the advantage of a high resistance to weathering (the erosion induced by gases and vapors in the atmosphere). The data sheets and properties of Corning Eagle XG are shown below.
How to Clean Your Optics
Knowing how to correctly clean your optics is extremely crucial. For different kinds of optics (e.g. Bare Metallic Substrates, Coated Optics, Flat and Spherical Lenses, etc.) different treatments are needed, cleaning optics without guidance could damage or even devastate the optics. Shalom EO introduces proper approaches for cleaning optics in this article.