The Super High Resolution USAF targets provide the finest resolution commercially available on the market. With the minimum feature as small as 137 nanometers bar width, typically these features are only easily seen with a scanning electron microscope (SEM). With microscope systems going to higher and higher resolution levels, scientists require special tools like this to help test their most demanding optical systems.

A typical application would be to test a high resolution microscope at the highest magnification.  This product would facilitate the testing of the microscope systems' top resolution. 

Please note that the high resolution targets are the small features in the center of the diamond aperture. The patterns in the square area on the right side of the slide are not test targests.

The target area is quartz with 1,000 angstroms of chrome. The quartz substrate is fastened to the metal slide with UV curing epoxy.  Rarely, microscopic amounts of blocking wax may be present post manufacture.  If this is the case, please remove the fragments with D-limonene.  Acetone can work in this case.  However, be wary of using too much which may loosen the epoxy.  Soap and water will also work or any other cleaning agent used to clean microscope objective immersion oil. Do not soak in any solvent. See optic cleaning instructions for additional information.

If you are not testing a microscope and need to mount the resolution target in free space, the mount works very well to mate to the HIGHRES targets.  There are two springs that can easily hold the HIGHRES target in place. Please note that the mount is metric, so the mount will only mate to a metric post. The posts, whether metric or english, will have the same diameter, so the post will be able to fit a metric or english post holder. For other mounting options, please check out spring-loaded optical filter mounts.

• Element number is the number left or right to the lines.
• Group number is the number on top of each area.