1″ x 3″ Negative, USAF Wheel Target

Product Details Tests Resolutions from 4 to 228 lp/mm Ability to tests Multiple Field Points using 9 Targets Reduces Testing Time The USAF pattern wheel is an ideal target to measure resolution at different field points within an imaging system’s field of view. The pattern is available on three different substrate sizes: 1” square, 1.5” diameter, or a 1” x 3” slide. Each size includes 8 USAF patterns in a circular pattern plus one pattern in the center. Each size is offered as positive (opaque pattern on clear background) or negative (clear pattern on opaque background). Specifications Physical & Mechanical Properties Thickness (mm): 1.50 Parallelism (inches): <0.0005 per inch Line Width Tolerance (mm): ±0.0005 Optical Properties Coating: First Surface Reflective Chromium Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More Float Glass Resolution: Minimum: Group 2 Element 1 Maximum: Group 7 Element 6 Surface Quality: 20-10 Surface Flatness (P-V): 2λ Regulatory Compliance RoHS 2015: Compliant × Certificate of Conformance: View × Reach 240: Compliant ×