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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 Filters

The article describes the characteristics of different types of optical filters including absorptive filters, interference filters, polarization filters, bandpass filters, notched filters, dichroic filters, neutral density filters, laser line filters, explained their working principle, and stated the common applications of optical filters.

Machine Vision Filters

In this article, we delve into the world of machine vision filters, exploring their types and understanding how they enhance the functionality of machine vision systems.

Optical Basics: The Nature of Light and Optical Elements

This article aims to provide a comprehensive understanding of essential Optical Basics, ranging from the nature of light (including wavelength, the electromagnetic spectrum, phase and amplitude, the wave-particle duality of light, to reflection, refraction, birefringence, and interference) to the operation principle of optical elements.

中性密度（ND）滤光片全面指南

中性密度（ND）滤光片长期以来被誉为摄影领域中不可或缺的工具，但它们的应用远远超出了相机镜头的范围。从半导体制造到医学成像，ND 滤光片在众多前沿行业中都有着多样且关键的用途。在本篇综合指南中，我们将深入探讨 ND 滤光片的技术原理，阐明其工作机制及应用领域。

光学滤光片规格书解读指南

详细解析光学滤光片规格书，包括中心波长、带宽FWHM、截止深度OD、透过率等关键参数，帮助您选择合适的光学滤光片产品。

荧光滤光片是如何工作的？

荧光滤光片是显微镜中的关键组件，用于选择性透过光线，以实现荧光的激发与检测。它们包括激发滤光片、发射滤光片和阻挡滤光片。激发滤光片用于激发荧光，发射滤光片用于捕获荧光信号，而阻挡滤光片则用于阻挡激发光。像 DAPI、FITC、GFP、Cy5、Texas Red、Cy3、mCherry 和 Rhodamine 等特定滤光片，都是针对不同荧光基团设计的，有助于实现精确的生物成像。

Understanding Optical Specifications-Geometric Specifications

A guide that helps understand the glossaries of optical specifications including thickness diameter tolerance, angle tolerance, center error, radius of curvature, clear aperture, parallelism, etc.

Understanding Optical Specifications: Surface Specifications

This article offers a simple but thorough explanation of surface specifications, which is an essential subset of optical specifications and which include Surface Quality, Surface Flatness, Surface Roughness, Power, Irregularity, and Fracture/Chip. This knowledge will help you navigate the complexities of optics terms and enhance your grasp of optics concepts.

What are Interferomters-Principles, Types, Applications

This is a technical article about interferometers, the content includes an explanation of the light interference phenomenon, the advantages and applications of interferometers, the basic operation principle of inteferometer, and different types of interferometers.
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