A protractor reticle is a high-precision optical measuring component that combines angle measurement with optical reticle technology. It is typically made of high-purity optical glass, quartz, or a transparent polymer film, with precise angles, lines, or grid patterns etched onto its surface using micro-machining techniques.

1. Product Features

(1) High-Precision Reticle

The reticle lines, scales, and patterns are precisely sized, with uniform and clear lines.

The reticle spacing and line width can be customized to meet different measurement accuracy requirements.

(2) Rich Pattern Types

Various patterns can be created, including crosshairs, scale lines, grids, rings, concentric circles, and angle lines.

Custom reticle patterns can be designed according to the instrument's intended use.

(3) Excellent Optical Performance

Using optical-grade glass and other substrates, it has good light transmittance and flatness.

The reticle edges are clear, minimizing the impact on the field of view.

(4) Clear Lines and High Contrast

The reticle pattern has good contrast with the background, facilitating observation and identification.

Different colors or different transmission/reflection effects of the reticle can be selected according to the usage environment.

(5) Flexible Size Specifications

Different diameters, thicknesses, and external dimensions can be provided according to the instrument structure.

Supports circular, square, and special irregular-shaped reticles.

(6) High Customization

Customization is possible according to customer-provided drawings, samples, or technical parameters.

Customizable scale values, graduation values, line widths, patterns, positional accuracy, and marking content.

(7) Good Stability

With proper selection of the substrate and processing technology, it can meet the requirements for long-term use.

Suitable for laboratory, industrial testing, and precision optical instrument scenarios.

2. Main Application Areas

Due to its unique angle and linear measurement capabilities, the protractor reticle is widely used in many industries:

(1) Optical Measurement and Industrial Inspection: Used for measuring the geometric angles and bevel angles of micro-parts, electronic components, and cutting tool edges under microscopes.

(2) Document identification and forensic science: Commonly used in criminal investigation laboratories and document examination for microscopic analysis of fingerprint patterns, document handwriting deflection angles, passport anti-counterfeiting marks, etc.

(3) Scientific research and education: Used in fields such as biology and materials science to measure crystal structures, cell division angles, or microscopic morphological characteristics.

3.Main Parameter Information

Dongguan Dafan Optical Technology Co., Ltd. (DFOPTIX) was founded in 2018 and is headquartered in Dongguan, Guangdong Province, China. DFOPTIX is a system-level calibration solutions service provider, driven by an engineering-centric culture and a core focus on technological innovation.

Currently, DFOPTIX has over 150 employees,with R&D personnel consistently accounting for over 30% of the workforce each year — a professional team combining deep engineering expertise with sustained innovation capability and a capacity for continuous innovation, ensuring robust technical support for high-precision calibration services.

Driven by technology and continuous innovation, DFOPTIX is committed to advancing industrial innovation.The company has established a state-of-the-art R&D and manufacturing base spanning nearly 20,000 square meters,equipped with high-standard precision workshops such as class-100 lithography workshop and class-1000 vacuum lamination workshop, as well as various well-equipped professional laboratories.DFOPTIX has also introduced internationally advanced manufacturing and testing equipment, systematically establishing an industry-leading R&D and manufacturing system.

DFOPTIX is a National High-Tech Enterprise,specializing in high-precision calibration, it focuses on the R&D and manufacturing of a comprehensive range of calibration products, such as integrated light-source calibration targets and radar calibration targets. The Company provides customers with customized calibration products, software and algorithm support, and full-scenario calibration solutions. Its products and solutions are widely applied across sectors including medical technology, semiconductors, robotics, consumer electronics, intelligent automotive, aerospace, 3D scanning, and industrial automation.

After years of rapid growth and technological development, DFOPTIX has emerged as a leading provider of system-level calibration solutions, serving more than 3,500 corporate customers worldwide, including multiple Fortune 500 companies.

Looking ahead, DFOPTIX will continue to uphold its core values of “Precision as the Foundation, Technological Innovation, Pursuit of Excellence, and Mutual Success.” The company will further advance technological innovation, continuously enhance its calibration technologies, and expand its software and algorithm ecosystem. By delivering increasingly precise, reliable, and systematic calibration solutions, DFOPTIX aims to forge lasting partnerships and work together with industry partners to shape the future of the industry.