USAF1951 Resolution Test Targets for Precision Optical Measurement

USAF1951 Resolution Test Targets for Precision Optical Measurement

Price range: $118.00 through $1,335.00

Min. Line/Space: 0.55μm
Feature Accuracy: ±1μm
Blue Chrome on Quartz Glass
1.6mm Thickness, Low Reflective
Thermal Expansion Coeff (20-200 ℃): <5.0×10⁻⁷/K
for Machine Vision, Imaging Test, Lab-class

SKU N/A Category USAF 1951 Resolution Target Tags Calibration Targets, USAF1951 Test Targets Brand: CalibVision

Size

Type

Pattern

Clear

VisionMark™ Pro Series - Naming System Guide

Breaking Down: VMP-100G-80

Our USAF1951 test targets are produced using advanced photolithography processes to ensure precise line widths and spacing. The chrome-on-glass construction provides maximum durability and exceptional optical properties, including high contrast and edge definition necessary for accurate resolution measurements.

Model	Material	Coating Type	Over size	Positive/ Negative	Thickness	Pattern
USAF-1G-(0-9, 1)-P	Quartz Glass	Blue Chrome	25x25mm/1″	Positive	1.6mm	Group 0 Element1 to Group 9 Element1
USAF-1G-(0-9, 1)-N	Quartz Glass	Blue Chrome	25x25mm/1″	Negative	1.6mm	Group 0 Element1 to Group 9 Element1
USAF-1G-(0-9, 6)-P	Quartz Glass	Blue Chrome	25x25mm/1″	Positive	1.6mm	Group 0 Element1 to Group 9 Element1
USAF-1G-(0-9, 6)-N	Quartz Glass	Blue Chrome	25x25mm/1″	Negative	1.6mm	Group 0 Element1 to Group 9 Element1
USAF-2G-(0-9, 1)-P	Quartz Glass	Blue Chrome	50x50mm/2″	Positive	1.6mm	Group 0 Element1 to Group 9 Element1
USAF-2G-(0-9, 1)-N	Quartz Glass	Blue Chrome	50x50mm/2″	Negative	1.6mm	Group 0 Element1 to Group 9 Element1
USAF-2G-(0-9, 6)-P	Quartz Glass	Blue Chrome	50x50mm/2″	Positive	1.6mm	Group 0 Element1 to Group 9 Element1
USAF-2G-(0-9, 6)-N	Quartz Glass	Blue Chrome	50x50mm/2″	Negative	1.6mm	Group 0 Element1 to Group 9 Element1
USAF-3G-(-2-9, 1)-P	Quartz Glass	Blue Chrome	76x76mm/3″	Positive	1.6mm	Group -2 Element1 to Group 9 Element1
USAF-3G-(-2-9, 1)-N	Quartz Glass	Blue Chrome	76x76mm/3″	Negative	1.6mm	Group -2 Element1 to Group 9 Element1
USAF-3G-(-2-9, 6)-P	Quartz Glass	Blue Chrome	76x76mm/3″	Positive	1.6mm	Group -2 Element1 to Group 9 Element1
USAF-3G-(-2-9, 6)-N	Quartz Glass	Blue Chrome	76x76mm/3″	Negative	1.6mm	Group -2 Element1 to Group 9 Element1

Technical Specifications

The USAF1951 pattern consists of groups of three horizontal and three vertical bars, with each group containing six elements. Each successive element is approximately 12% smaller than the previous (factor of 2^(1/6)), and each successive group is half the size of the previous group. This standardized progression allows for precise resolution measurements across a wide range of optical systems.

Product Specification
Pattern Info		Substrate Material Info
Production Process	Laser Writing	Substrate Material of Glass	Quartz Glass (Fused Silica)
Minimum Line/space	1μm / 0.55μm	Transmission (@550nm)	>95%
Feature Accuracy & Avarage Accuracy	±1μm	Thermal Expansion Coeff (20-200 ℃)	<5.0×10⁻⁷/K
Coating Type	Blue Chrome (Low Reflective)	Expansion Ratio (20-200 ℃)	0.00006％(0.6μm/℃ of 1m)
Reflectivity	< 13.4% @550nm	Surface Flatness	<0.55μm (Dimension<50mm)
	< 1.8% @650nm		<2μm (Dimension<100mm)
	< 2.67% @750nm		<5μm (Dimension>100mm)
Coating Thickness	120nm (±0.20nm)	Surface Roughness	<0.025μm
Optical Density OD	>4.5	Thickness	1.6mm (±0.3mm)
White Background	Minimum Line/space: 10μm, Thickness: 40μm (White & Smooth Coating on the Back Side)	MIN / MAX Overall Size	Min: 4x4mm; Max: 800x960mm (±0.1mm)
Positive / Negative	Positive: Opaque Pattern, Clear Background. Negative: Clear Pattern, Opaque Background.	Target Shape	Square

Configuration Options

Standard Version: Groups -2 to 7 (0.250 to 228 line pairs/mm)
High-Resolution Version: Groups 2 to 9 (4.0 to 912 line pairs/mm)
Low-Resolution Version: Groups -4 to 2 (0.0625 to 7.13 line pairs/mm)
Pattern Orientation: Positive (black lines on clear background) or Negative (clear lines on black background)
Custom Configurations: Available upon request for specialized applications

Number of line pairs per millimeter in USAF Resolving Power Test Target 1951
	Group Number
Element	-2	-1	0	1	2	3	4	5	6	7	8	9
1	0.250	0.500	1.00	2.00	4.00	8.00	16.00	32.0	64.0	128.0	256.0	512.0
2	0.281	0.561	1.12	2.24	4.49	8.98	17.96	35.9	71.8	143.7	287.4	574.7
3	0.315	0.630	1.26	2.52	5.04	10.08	20.16	40.3	80.6	161.3	322.5	645.1
4	0.354	0.707	1.41	2.83	5.66	11.31	22.63	45.3	90.5	181.0	362.0	724.1
5	0.397	0.794	1.59	3.17	6.35	12.70	25.40	50.8	101.6	203.2	406.4	812.7
6	0.445	0.891	1.78	3.56	7.13	14.25	28.51	57.0	114.0	228.1	456.1	912.3

Width of a line in micrometers in USAF Resolving Power Test Target 1951
	Group Number
Element	-2	-1	0	1	2	3	4	5	6	7	8	9
1	2000.00	1000.00	500.00	250.00	125.00	62.50	31.25	15.63	7.81	3.91	1.95	0.98
2	1781.80	890.90	445.45	222.72	111.36	55.68	27.84	13.92	6.96	3.48	1.74	0.87
3	1587.40	793.70	396.85	198.43	99.21	49.61	24.80	12.40	6.20	3.10	1.55	0.78
4	1414.21	707.11	353.55	176.78	88.39	44.19	22.10	11.05	5.52	2.76	1.38	0.69
5	1259.92	629.96	314.98	157.49	78.75	39.37	19.69	9.84	4.92	2.46	1.23	0.62
6	1122.46	561.23	280.62	140.31	70.15	35.08	17.54	8.77	4.38	2.19	1.10	0.55

Quality Assurance

Each test target undergoes rigorous inspection to verify pattern accuracy, optical density, and substrate quality. Our manufacturing process maintains tight tolerances, ensuring consistent performance across production batches. Each target is delivered with a calibration certificate confirming pattern accuracy and traceability.

Package Contents

USAF1951 Test Target (specified configuration)
Protective storage case
Calibration certificate
Handling instructions

Applications

Machine Vision & Industrial Inspection

Camera resolution verification and calibration
Lens performance evaluation
System resolution documentation for quality control
Validation of minimum detectable feature size

Scientific & Laboratory

Microscope resolution testing and calibration
Optical system characterization
Resolution comparison between different optical configurations
Documentation of imaging capability for publications

Electronics Manufacturing

PCB inspection system calibration
Component placement verification setup
Solder joint inspection system configuration

Medical Imaging

Endoscope and medical camera testing
Surgical microscope calibration
Quality assurance for diagnostic imaging systems

Educational & Research

Optical laboratory experiments
Demonstration of resolution concepts
Standardized testing for research protocols

Photography & Imaging

Lens testing and comparison
Camera sensor evaluation
Resolution documentation across aperture settings