Resolution Plate

Definition: resolution test plates, also called optical-resolution inspection targets, are standard metrological optics for testing, calibrating, and verifying imaging resolution. Precisely patterned fine lines, grids, or targets reveal how well lenses, industrial cameras, and complete imaging paths reproduce detail, sharpness, and limiting resolution. They are common calibration devices in imaging, machine vision, and precision inspection. Key parameters: 1. Resolution. Complete line-pair gradients cover coarse low-magnification to ultrafine high-magnification ranges, defining resolution grades. 2. Linewidth. Smaller lines permit testing higher resolution. 5. Etch uniformity/edge steepness. Clean regular edges without burrs, serrations, or halo defects ensure repeatability. 6. Figure/cleanliness. Highly polished clean surfaces free from scratches, digs, and stains avoid defect-induced stray noise and preserve valid measurements. Principles: 1. Limiting resolution is the finest line-pair pattern fully resolved by a system. 2. Image quality/aberration testing. Defocus, merged lines, blurred edges, or ghosts reveal aberrations, sharpness, and distortion, helping locate imaging defects. 3. Quantitative calibration. Precision targets reference detail resolution, grayscale-contrast reproduction, and overall imaging for standardized data-based calibration. Manufacturing/customization: these targets are core standards for imaging calibration, lens-quality testing, and vision-system accuracy. In-house lithography/precision dry etching controls simulation, pattern replication, etching, and outgoing inspection. The company describes itself as one of few Chinese independent producers supporting precision nonstandard targets and scaled output. Customer inspection standards, resolution requirements, and optical structures guide national-standard or custom targets with varied line-pair precision, minimum linewidth, spacing rules, and patterns. Circular, square, and special outlines fit unusual equipment and limited installation spaces. Micrometer-level fine replication creates steep clean lines without burrs, serration, breaks, or ill-defined edges, avoiding blur, artifacts, measurement errors, and inaccurate resolution calibration from poor target precision. Substrates include high-transmission optical glass and high-purity fused silica for UV, visible, and IR testing. Dense blocking and high-performance AR coatings improve black/white contrast, reduce substrate stray light, and enhance calibration accuracy/long-term stability. Flexible production supports small advanced research prototypes, special accuracies/nonstandard targets, and large standardized orders for lens, vision, or precision-instrument manufacturers, with stable capacity, short lead times, and batch consistency. Every target receives strict dedicated inspection of linewidth tolerance, line uniformity, cleanliness, pattern position, blocking density, and contrast. Formal reports ensure controlled, traceable, verifiable quality. Dedicated optical engineers provide one-to-one optimized target designs, optical matching/setup, and complete calibration solutions based on customer system parameters, purposes, and standards, enabling precise standardized stable imaging/testing. The company presents itself as a suitable Chinese independent precision-resolution-target supplier. Contact it for custom work and professional efficient technical/product support. Additional parameters: 3. Patterns include Chinese national-standard, US military-standard, radial, grid, checkerboard, and double-slit forms for different calibration standards. 4. High-transmission fused-silica/optical-glass substrates provide flatness, high transmission, and few internal impurities to reduce stray light and preserve image purity. Image captions: stepped line-pair target; USAF-1951 standard target; SCU custom target.

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