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Product Description

Optical element material: soda-lime glass
Resolution: 0.25-228 lp/mm
Three lines form one set
Commonly used for testing imaging system resolution

The LBTEK USAF 1951 resolution test target is manufactured by coating low-reflectivity chromium film on soda-lime glass, containing either 6 groups (+2 to +7) or 10 groups (-2 to +7) of patterns. Each group consists of elements corresponding to its group number, with each element comprising three horizontal and three vertical lines, effectively reducing the probability of false resolution. Detailed specifications of this test target can be found on the Technical Description tab. LBTEK offers both positive and negative USAF 1951 resolution test targets. Additionally, LBTEK provides customization services for resolution test targets. For other requirements, please contact LBTEK Technical Support.

Attribute

Optical component materialSoda-lime glass

Butting Error±0.5 μm

USAF 1951 Resolution Test Target

Three lines form a set to minimize pseudo-resolution
Both positive and negative test targets available
Available in two sizes: 25.4 mm diameter and 76.2×76.2 mm

The LBTEK USAF 1951 resolution test targets include either 6 groups (+2 to +7) or 10 groups (-2 to +7) of patterns, with 6 elements in each group, achieving a maximum resolution of 228.0 line pairs per millimeter (one bright line and one dark line). The resolution test targets consist of both positive (bright field) and negative (dark field) versions. The positive resolution test target features a chrome coating on a soda-lime glass substrate, allowing light transmission through the non-patterned areas. The negative resolution test target, on the other hand, has a chrome coating that permits light transmission through the patterned areas. For any other customization requirements, please contact Technical Support.

Positive (Top) Negative (Bottom) Resolution Target 4 Groups (Total 6 Groups) Detail Images

Product Model	Size	Number of patterns	Coating	Unit Price	Lead Time
RTL4AA-N	76.2×25.4 mm	9	Chrome (test pattern transparent, other areas coated)	$181.47	2 weeks
RTL4AA-P	76.2×25.4 mm	9	Chrome (test pattern coating)	$181.47	2 weeks
RTR1BA-N	Ø25.4 mm	9	Chrome (test pattern transparent, other areas coated)	$135.71	2 weeks
RTR1BA-P	Ø25.4 mm	9	Chrome (test pattern coating)	$135.71	2 weeks
RTS3AB-N	76.2×76.2 mm	1	Chrome (test pattern transparent, other areas coated)	$181.47	2 weeks
RTS3AB-P	76.2×76.2 mm	1	Chrome (test pattern coating)	$181.47	2 weeks
RB-N	Ø25.4 mm	1	Chrome (test pattern transparent, other areas coated)	$114.27	4 weeks
RB-J	Ø25.4 mm	1	Chrome (test pattern coating)	$114.27	4 weeks