| OPB-40C03-P 40 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=3 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OFPXP-100S15-10 100 x 100 mm Hard Glass Square Precision Polished Flat Window; t=15 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Rectangular |
| OFPXP-50S08-4 50 x 50 mm Hard Glass Square Precision Polished Flat Window; t=8 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Rectangular |
| OFB-2535R05-4 25 x 35 mm N-BK7 Rectangular Precision Ground Flat Window; t=5 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Rectangular |
| OFPXP-4050R08-20 40 x 50 mm Hard Glass Rectangular Precision Polished Flat Window; t=8 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Rectangular |
| OFPXP-80100R15-1 80 x 100 mm Hard Glass Rectangular Precision Polished Flat Window; t=15 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Rectangular |
| OFPXP-5060R10-20 50 x 60 mm Hard Glass Rectangular Precision Polished Flat Window; t=10 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Rectangular |
| OFSQ-10C06-20 10 mm Dia. UVFS Round Precision Ground Flat Window; t=6 mm Uncoated | Optics | Window | Flat Window | OptoSigma | UVFS | Circular |
| OFB-15C05-10 15 mm Dia. N-BK7 Round Precision Ground Flat Window; t=5 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OFB-20C05-20 20 mm Dia. N-BK7 Round Precision Ground Flat Window; t=5 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OFB-12.7C05-10 12.7 mm Dia. N-BK7 Round Precision Ground Flat Window; t=5 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OFBP-40C06-1 40 mm Dia. N-BK7 Round Precision Polished Flat Window; t=6 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OFBP-25C05-20 25 mm Dia. N-BK7 Round Precision Polished Flat Window; t=5 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OFPXP-80C12-10 80 mm Dia. Hard Glass Round Precision Polished Flat Window; t=12 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OFPXP-60C10-1 60 mm Dia. Hard Glass Round Precision Polished Flat Window; t=10 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| S-OPB-50C08-10-5 50 mm Dia. N-BK7 Reasonable Round Optical Flat Window; t=8 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| S-OFB-15S05-10 15 x 15 mm N-BK7 Reasonable Square Optical Flat Window; t=5 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Rectangular |
| S-OFB-1015R03-10 10 x 15 mm N-BK7 Reasonable Rectangular Optical Flat Window; t=3 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Rectangular |
| S-OFB-15S03-10 15 x 15 mm N-BK7 Reasonable Square Optical Flat Window; t=3 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Rectangular |
| OPB-40C06-10-5 40 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=6 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OPB-10C05-10-5 10 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=5 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OPB-20C03-4-5 20 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=3 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OPB-80C12-4-5 80 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=12 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OPB-10C05-P 10 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=5 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OPB-100C10-10-5 100 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=10 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OPB-50.8C05-4-5 50.8 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=5 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OPB-60C10-20-2 60 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=10 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OPB-60C10-1-5 60 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=10 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OPB-30C01-1-5 30 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=1 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OPB-50C03-P 50 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=3 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OPB-50C05-1-5 50 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=5 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OPB-50C08-P 50 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=8 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OPB-15C03-4-5 15 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=3 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OPB-25.4C05-10-5 25.4 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=5 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OPB-30C02-1-5 30 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=2 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OPB-50C01-P 50 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=1 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OPB-100C10-1-5 100 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=10 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OPSQ-50C08-P 50 mm Dia. UVFS Round Optical Parallel Flat Window; t=8 mm Uncoated | Optics | Window | Flat Window | OptoSigma | UVFS | Circular |
| OPSQ-100C15-20-2 100 mm Dia. UVFS Round Optical Parallel Flat Window; t=15 mm Uncoated | Optics | Window | Flat Window | OptoSigma | UVFS | Circular |
| OPSQ-15C2.3-1-10 15 mm Dia. UVFS Round Optical Parallel Flat Window; t=2.3 mm Uncoated | Optics | Window | Flat Window | OptoSigma | UVFS | Circular |
| OPSQ-25C02-1-5 25 mm Dia. UVFS Round Optical Parallel Flat Window; t=2 mm Uncoated | Optics | Window | Flat Window | OptoSigma | UVFS | Circular |
| OPSQ-40C01-P 40 mm Dia. UVFS Round Optical Parallel Flat Window; t=1 mm Uncoated | Optics | Window | Flat Window | OptoSigma | UVFS | Circular |
| OPSQ-15C05-1-5 15 mm Dia. UVFS Round Optical Parallel Flat Window; t=5 mm Uncoated | Optics | Window | Flat Window | OptoSigma | UVFS | Circular |
| OPSQ-40C04-1-5 40 mm Dia. UVFS Round Optical Parallel Flat Window; t=4 mm Uncoated | Optics | Window | Flat Window | OptoSigma | UVFS | Circular |
| OPSQ-60C10-10-5 60 mm Dia. UVFS Round Optical Parallel Flat Window; t=10 mm Uncoated | Optics | Window | Flat Window | OptoSigma | UVFS | Circular |
| OPSQ-150C15-10-5 150 mm Dia. UVFS Round Optical Parallel Flat Window; t=15 mm Uncoated | Optics | Window | Flat Window | OptoSigma | UVFS | Circular |
| OPSQ-20C02-1-5 20 mm Dia. UVFS Round Optical Parallel Flat Window; t=2 mm Uncoated | Optics | Window | Flat Window | OptoSigma | UVFS | Circular |
| OPB-20C05-20-2 20 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=5 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OPB-50C03-1-5 50 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=3 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OPB-30C04-4-5 30 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=4 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OPB-15C02-1-5 15 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=2 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OPB-40C01-P 40 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=1 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OPB-130C13-P 130 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=13 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OPB-15C03-P 15 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=3 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OPB-40C03-4-5 40 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=3 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OPB-20C05-10-5 20 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=5 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OPB-10C01-1-5 10 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=1 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OPB-60C06-1-5 60 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=6 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OPB-20C01-P 20 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=1 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OPB-150C20-4-5 150 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=20 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OPB-10C03-4-5 10 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=3 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OPB-10C05-20-2 10 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=5 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OPB-10C05-1-5 10 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=5 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OPB-50C05-10-5 50 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=5 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OPMFSP-25.4C05-10-5 25.4 mm Dia. MgF2 Round Low Scattering Optical Flat Window; t=5 mm Uncoated | Optics | Window | Flat Window | OptoSigma | Magnesium Fluoride | Circular |
| OPCFSP-25.4C05-10-5 25.4 mm Dia. CaF2 Round Low Scattering Optical Flat Window; t=5 mm Uncoated | Optics | Window | Flat Window | OptoSigma | CaF2 | Circular |
| OPSQ-25C05-4-5 25 mm Dia. UVFS Round Optical Parallel Flat Window; t=5 mm Uncoated | Optics | Window | Flat Window | OptoSigma | UVFS | Circular |
| OFPXP-50S08-10 50 x 50 mm Hard Glass Square Precision Polished Flat Window; t=8 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Rectangular |
| OFPXP-50S08-1 50 x 50 mm Hard Glass Square Precision Polished Flat Window; t=8 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Rectangular |
| OFPXP-80S12-4 80 x 80 mm Hard Glass Square Precision Polished Flat Window; t=12 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Rectangular |
| OFPXP-130S18-1 130 x 130 mm Hard Glass Square Precision Polished Flat Window; t=18 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Rectangular |
| OFPXP-60S10-20 60 x 60 mm Hard Glass Square Precision Polished Flat Window; t=10 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Rectangular |
| OFPXP-100S15-4 100 x 100 mm Hard Glass Square Precision Polished Flat Window; t=15 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Rectangular |
| OFB-2030R05-1 20 x 30 mm N-BK7 Rectangular Precision Ground Flat Window; t=5 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Rectangular |
| OFSQ-2535R06-20 25 x 35 mm UVFS Rectangular Precision Ground Flat Window; t=6 mm Uncoated | Optics | Window | Flat Window | OptoSigma | UVFS | Rectangular |
| OFB-2030R05-4 20 x 30 mm N-BK7 Rectangular Precision Ground Flat Window; t=5 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Rectangular |
| OFB-2535R05-10 25 x 35 mm N-BK7 Rectangular Precision Ground Flat Window; t=5 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Rectangular |
| OFB-1525R05-4 15 x 25 mm N-BK7 Rectangular Precision Ground Flat Window; t=5 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Rectangular |
| OFSQP-3040R08-20 30 x 40 mm UVFS Rectangular Precision Polished Flat Window; t=8 mm Uncoated | Optics | Window | Flat Window | OptoSigma | UVFS | Rectangular |
| OFPXP-4050R08-1 40 x 50 mm Hard Glass Rectangular Precision Polished Flat Window; t=8 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Rectangular |
| OFPXP-3040R06-4 30 x 40 mm Hard Glass Rectangular Precision Polished Flat Window; t=6 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Rectangular |
| OFBP-50C08-1 50 mm Dia. N-BK7 Round Precision Polished Flat Window; t=8 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OFB-10C05-10 10 mm Dia. N-BK7 Round Precision Ground Flat Window; t=5 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OFBP-30C05-10 30 mm Dia. N-BK7 Round Precision Polished Flat Window; t=5 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OFBP-40C06-4 40 mm Dia. N-BK7 Round Precision Polished Flat Window; t=6 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OFPXP-100C15-1 100 mm Dia. Hard Glass Round Precision Polished Flat Window; t=15 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OFPXP-80C12-20 80 mm Dia. Hard Glass Round Precision Polished Flat Window; t=12 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OFPXP-100C15-10 100 mm Dia. Hard Glass Round Precision Polished Flat Window; t=15 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| S-OFB-10C03-10 10 mm Dia. N-BK7 Reasonable Round Optical Flat Window; t=3 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| S-OFBP-30C05-10 30 mm Dia. N-BK7 Reasonable Round Optical Flat Window; t=5 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| S-OPB-25.4C05-10-5 25.4 mm Dia. N-BK7 Reasonable Round Optical Flat Window; t=5 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| S-OFB-15C03-10 15 mm Dia. N-BK7 Reasonable Round Optical Flat Window; t=3 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OPB-10C01-10-5 10 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=1 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OPB-15C05-P 15 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=5 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OPB-30C02-P 30 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=2 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OPB-30C03-1-5 30 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=3 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OPB-50C05-4-5 50 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=5 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OPB-15C01-P 15 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=1 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OPB-30C05-20-2 30 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=5 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |
| OPB-30C05-1-5 30 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=5 mm Uncoated | Optics | Window | Flat Window | OptoSigma | N-BK7 | Circular |