4 Inch Camera Vision Calibration Board, Microscope Lens Test Chart, Accuracy ±1.0um, 90% Light Transmission, Black Polka Dot Pattern, for Studio Photography Inspection

Product description Specifications: Name: Vision Calibration Board Material: Optical Glass Process: Direct-Write Lithography Accuracy: 1.0μm Size: 100*100mm Dot Diameter: 1mm Center Distance: 2mm Array: 43*43mm Pattern Size: 85*85mm Application: Machine Vision Calibration Product Includes: 1*Camera Vision Calibration Board

• 【High Transmittance Imaging】Up to 90% transmittance enhances image clarity and contrast, strengthening measurement accuracy and operational stability.
• 【High-Precision Calibration Standard】Utilizes an optical glass substrate and direct-write lithography to achieve calibration accuracy up to 1.0μm, meeting stringent requirements for micro- and nano-structure precision manufacturing.
• 【Superior Flatness】High-standard flatness design provides a solid foundation for calibration operations, further improving calibration accuracy.
• 【Uniform Spraying and Chrome Plating】The surface employs a uniform spraying and chrome plating process, effectively reducing geometric deviations and minimizing adverse effects on camera calibration.
• 【Versatile & Precise Design】Standard 100×100mm board with a 43×43 array, 1mm dot diameter, and 2mm center-to-center spacing, making it widely compatible with various machine vision and microscope calibration system.