Optical element material: UV fused silica
High-reflectivity chromium coating
Commonly used in imaging system eyepieces
Optical element material: soda-lime glass
Resolution: 1.25-250 lp/mm
Commonly used for testing imaging system resolution
Resolution: 57.5 lp/mm and 115 lp/mm
Wide resolution coverage range
Commonly used for testing the imaging quality of optical systems
Resolution: 2.4-80 lp/mm
Resolution: 1-18 lp/mm
Five line pairs per set
Resolution: 0.25-228 lp/mm
Three lines form one set