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N-BK7

N-BK7 is a Schott designation for the most common Borosilicate Crown glass used for a wide variety of visible applications. The basic data here is given for N-BK7. Full optical design data on N-BK7 and other glasses can be found by following the web links at the bottom of this page.

JGS1

JGS1 is a synthetic UV-grade quartz glass suitable for optical applications equivalent to Corning 7980. JGS1 has high transmission across the UV to the NIR spectrum (180-2500nm), and is particularly advantageous for application in the UV range. However, like most UV grade Fused Silica, JGS1 contains relatively higher OH compositions than the IR grade Fused Silica, which leads to higher absorption in the IR band.

Corning HPFS 7980/7979 熔融石英玻璃——高纯度光学基片与晶圆材料

Corning HPFS 7980 与 7979 是高纯度熔融石英玻璃，具有从深紫外到红外的高透过率、低双折射和极高的折射率均匀性。煦和光电提供高品质 HPFS 光学基片与晶圆材料，适用于光学窗口、透镜、反射镜等高端光电领域。

BOROFLOAT33 硼硅酸盐玻璃详解及应用指南

BOROFLOAT33 是施玻特（SCHOTT）公司对一种硼硅酸盐玻璃的命名，该玻璃采用独特的微浮法（microfloat）工艺制造。它卓越的热学、机械、化学和光学性能，使其在众多应用中表现出高度的多功能性和重要地位。

SCHOTT ZERODUR

SCHOTT ZERODUR is a lithium aluminum silicon oxide glass-ceramic of zero porosity. Glass Ceramics are manufactured from controlled crystallization and nucleation of glass substrates, resulting in its mixed inherent properties of both glass and ceramic. Among them, SCHOTT ZERODURis iconic for its near-zero coefficients of thermal expansion (CTE), which is a result of its counterbalancing microscopic system and the glass matrix.

Corning Eagle XG玻璃基片介绍

康宁 Eagle XG 是一种合成的碱土硼铝硅酸盐玻璃，专为 液晶显示器（LCD） 和其他电光应用而设计。作为康宁公司的旗舰产品之一，Eagle XG 玻璃具有低密度、可见光范围内 92% 的高透过率、极为光滑的表面，以及出色的机械强度，使其能够实现更薄、更大的尺寸设计。此外，该玻璃还具有极高的耐候性（即抵抗大气中气体和蒸气侵蚀的能力）。更重要的是，该玻璃不含任何重金属成分，对人体健康无害，并且对环境友好。

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: 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.

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.
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