USAF 1951 分辨率測試板

分辨率測試片 (含USAF 1951測試圖案) 提供正片圖案 (圖案鍍鉻，背景透明) 或負片圖案 (圖案透明，背景鍍鉻)。建議將正片圖案用於視覺系統與測試設備的品質控制。負片圖案多數情況下是背光圖案，非常適用於與顯微鏡及高放大倍數的視訊鏡頭搭配使用。每個圖案都已裝箱，並包括分辨率值圖表這些測試板符合MIL-S-150A規格。

技術資訊

Number of Line Pairs / mm in USAF Resolving Power Test Target 1951
Element	Group Number										For High Res only
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	0.280	0.561	1.12	2.24	4.49	8.98	17.95	36.0	71.8	144.0	287.0	575.0
3	0.315	0.630	1.26	2.52	5.04	10.10	20.16	40.3	80.6	161.0	323.0	645.0
4	0.353	0.707	1.41	2.83	5.66	11.30	22.62	45.3	90.5	181.0	362.0	—
5	0.397	0.793	1.59	3.17	6.35	12.70	25.39	50.8	102.0	203.0	406.0	—
6	0.445	0.891	1.78	3.56	7.13	14.30	28.50	57.0	114.0	228.0	456.0	—

Condition	Positive Test Target	Negative Test Target
Lighting Condition	Front-lit or general lighting	Back-lit or highly illuminated
Appearance of Bars	Dark bars on a bright background	Bright bars on a dark background
Application	General optical testing	High-contrast or back-lit testing
Substrate	Clear substrate with chrome patterns	Chrome-covered substrate with clear patterns
Example Use Case	Microscope calibration	Projection systems, back-lit displays