Standard flat mirror

Standard flat mirror

Supplier
Transoptics
Category
Optical Mirrors
Origin
China

An optical standard flat is a precisely polished surface. It serves as a reference surface for comparative inspection of unknown surfaces. The surface figure measurement of a polished surface is determined by the amount of fringe curvature between the surface under test and the reference surface. These standard mirrors can be used in many ways, such as: measuring the wear and accuracy of gauge blocks, and measuring the surface figure accuracy of various components such as windows, prisms, color filters, and mirrors. They can also serve as standard flat mirrors in interferometers.

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Overview

An optical standard flat is a precisely polished surface. It serves as a reference surface for comparative inspection of unknown surfaces. The surface figure measurement of a polished surface is determined by the amount of fringe curvature between the surface under test and the reference surface. These standard mirrors can be used in many ways, such as: measuring the wear and accuracy of gauge blocks, and measuring the surface figure accuracy of various components such as windows, prisms, color filters, and mirrors. They can also serve as standard flat mirrors in interferometers.

Specifications

ParameterValue
Refractive index (587.6nm) [H-K9L;587.6nm]1.5168
Refractive index (587.6nm) [H-K4;587.6nm]1.5080
Refractive index (587.6nm) [Fused silica; 587.6nm]1.4586
Abbe number (νd) [H-K9L]64.20
Abbe number (νd) [H-K4]61.05
Abbe number (νd) [Quartz Glass]68.00
Specific gravity (g/cm³) [H-K9L]2.52 g/cm³
Specific gravity (g/cm³) [H-K4]2.43 g/cm³
Specific gravity (g/cm³) [Quartz Glass]2.21 g/cm³
Surface accuracy grade (λ) [H-K9L/H-K4/Fused silica]λ/10 and λ/20
Rear surface accuracy grade (λ) [H-K9L/H-K4/Fused silica]λ
Parallelism [H-K9L/H-K4/Fused silica]5-10 arcmin
Clear aperture [H-K9L/H-K4/Fused silica; central region]>90 % central region
Chamfer [H-K9L/H-K4/Fused silica]1.0x45 °

Applications

Can be used in many ways, such as: measuring the wear and accuracy of gauge blocks, and measuring the surface figure accuracy of various components such as windows, prisms, color filters, and mirrors.

Datasheet

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Supplier Information

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Transoptics
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BTMT (Chuangsi Zhiye (Beijing) Optoelectronics Technology Co., Ltd.), founded in 1998, is an innovative technology enterprise providing high-precision optical component solutions and rapid service support globally, with industry-leading independent R&D, manufacturing, and sales capabilities. Over more than 20 years, BTMT has focused on the optical field, developing and manufacturing high-quality high-precision optical lenses and lens assemblies widely used in biomedical, laser applications, precision measurement, aerospace, intelligent equipment, and other fields, forming strategic partnerships with top optical enterprises in China and worldwide, continuously creating value for customers in many industries. BTMT is a company that manufactures products earnestly. The company adheres to market demand orientation, implements five major system standards: ISO9001, ISO45001, ISO14001, ISO50001, and ISO13485, and efficiently controls product quality through refined production, meticulous service, and precise processes, winning the trust of domestic and international customers and establishing long-term good cooperative relationships. After more than 20 years of development, the company continues to expand markets in domestic and international frontier fields, building a mature business undertaking platform, with independent import and export rights, and products exported to more than 20 countries and regions in Asia, Europe, and the Americas. BTMT is a company that diligently researches technology. The company has strong technical R&D strength, owns multiple patents, and has obtained Beijing High-tech Enterprise Certificate and AAA Enterprise Credit Rating Certificate. The company's scientific research team consists of senior experts with over 40 years of industry experience, outstanding elite backbones, and active industry newcomers, capable of completing optical design and mechanical structure design for various lenses and systems. It is also equipped with multiple imported equipment from Germany, the United States, Japan, and South Korea, and world-class testing instruments, able to provide customers with the best solutions for different processes and precision levels, fully meeting customer needs. BTMT is a company that steadfastly pursues dreams. A company without dreams cannot grow big, and a company that only talks about dreams cannot do well. Excellent quality and efficient service are BTMT's long-term unchanging pursuit. In the future, BTMT will continue to take 'devoting to the optical field, serving customers with excellent quality, and contributing to social development' as its mission, 'becoming a century-old enterprise with happy employees and moved customers' as its vision, adhering to the values of 'gratitude and altruism, openness and progress, scientific innovation, integrity and collaboration', and on the path of precision optics, continuously expand domestic and international markets, realize enterprise value, and forge BTMT's dream!

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