Dual Surface Optical Flats, Φ152.4mm, Thickness=25.4±2mm, Uncoated, H-K9L Optical Glass, Parallelism: <5arcsec, United Optical Technology Co., Ltd (CAT#: STEM-OP-2979-YJL)
Dual Surface Optical Flats, Φ203.2mm, Thickness=38.1±2mm, Uncoated, H-K9L Optical Glass, Parallelism: <5arcsec, United Optical Technology Co., Ltd (CAT#: STEM-OP-2980-YJL)
Dual Surface Optical Flats, Φ254.0mm, Thickness=38.1±2mm, Uncoated, H-K9L Optical Glass, Parallelism: <5arcsec, United Optical Technology Co., Ltd (CAT#: STEM-OP-2981-YJL)
Dual Surface Optical Flats, Φ304.8mm, Thickness=38.1±2mm, Uncoated, H-K9L Optical Glass, Parallelism: <5arcsec, United Optical Technology Co., Ltd (CAT#: STEM-OP-2982-YJL)
Dual Surface Optical Flats, Φ25.4mm, Thickness=12.7±1mm, Uncoated, H-K9L Optical Glass, United Optical Technology Co., Ltd (CAT#: STEM-OP-2983-YJL)
Dual Surface Optical Flats, Φ50.8mm, Thickness=12.7±1mm, Uncoated, H-K9L Optical Glass, United Optical Technology Co., Ltd (CAT#: STEM-OP-2984-YJL)