USAF1951 Test Target: The Gold Standard for Optical Resolution Testing
USAF1951 test targets measure optical system resolution using standardized bar patterns. Engineers identify the smallest visible group/element to calculate resolution in line pairs per millimeter. These targets remain essential for lens testing, system calibration, and quality control in modern machine vision applications.
Relay Lenses: The Hidden Secret to Cutting Camera Testing Costs by 93%
The Problem You Didn’t Know You Had If you’re testing camera modules, you’re probably wasting space. A lot of space. I recently visited a smartphone manufacturer in Asia. Their testing floor looked like an aircraft hangar. Why? Because testing camera modules traditionally requires massive distances between the test chart and the camera. But here’s what […]
Large Aperture Lenses: Solving Critical SMT Mounting Inspection Challenges
This article examines how large aperture machine vision lenses address critical challenges in SMT mounting inspection. With component placement speeds exceeding 60,000 parts per hour and sizes shrinking to 0.4mm × 0.2mm, traditional optics struggle with limited exposure times and variable surface reflectivity. The Oklab FT230 Series, featuring F/1.4 aperture and support for 10MP sensors with 2.5μm pixels, delivers 4X more light gathering than typical F/2.8 lenses. Implementation results show 35% reduction in false rejects, 25% increased production speeds, and 42% improvement in defect detection for fine-pitch components.