Optical Parallel-BK7-Circle / OPB-C
Optical Paralles are precision substrates polished on both sides with excellent surface quality and surface flatness.
These substrates can be used with thin film coatings to make custom windows and beamsplitters.
The Optical Parallels are available in BK7 for visible and infrared wavelength range.The high accuracy of the substrate parallels does not change the angle of the transmitted beam when you insert it parallel to the substrate perpendicular to the optical path of the laser.
The high surface precision substrate can also be used instead of a Newton test plate.
Common Specifications
| Material | BK7 | 
|
|---|---|---|
| Clear Aperture | 90% of the diameter | |
| Surface Quality (Scratch-Dig) | 10 - 5 |
| Schematic | Outline Drawing |
|---|---|
 |
 |
| Part Number | Diameter φD |
Thickness t |
Surface Flatness | Parallelism |
|---|---|---|---|---|
| OPB-10C01-10-5 | φ10mm | 1mm | λ/10 | ＜00′05″ |
| OPB-10C01-4-5 | φ10mm | 1mm | λ/4 | ＜00′05″ |
| OPB-10C01-1-5 | φ10mm | 1mm | λ | ＜00′05″ |
| OPB-10C01-P | φ10mm | 1mm | 4λ* | ＜03′00″ |
| OPB-10C02-20-2 | φ10mm | 2mm | λ/20 | ＜00′02″ |
| OPB-10C02-10-5 | φ10mm | 2mm | λ/10 | ＜00′05″ |
| OPB-10C02-4-5 | φ10mm | 2mm | λ/4 | ＜00′05″ |
| OPB-10C02-1-5 | φ10mm | 2mm | λ | ＜00′05″ |
| OPB-10C02-P | φ10mm | 2mm | 4λ* | ＜03′00″ |
| OPB-10C03-20-2 | φ10mm | 3mm | λ/20 | ＜00′02″ |
| OPB-10C03-10-5 | φ10mm | 3mm | λ/10 | ＜00′05″ |
| OPB-10C03-4-5 | φ10mm | 3mm | λ/4 | ＜00′05″ |
| OPB-10C03-1-5 | φ10mm | 3mm | λ | ＜00′05″ |
| OPB-10C03-P | φ10mm | 3mm | 4λ* | ＜03′00″ |
| OPB-10C05-20-2 | φ10mm | 5mm | λ/20 | ＜00′02″ |
| OPB-10C05-10-5 | φ10mm | 5mm | λ/10 | ＜00′05″ |
| OPB-10C05-4-5 | φ10mm | 5mm | λ/4 | ＜00′05″ |
| OPB-10C05-1-5 | φ10mm | 5mm | λ | ＜00′05″ |
| OPB-10C05-P | φ10mm | 5mm | 4λ* | ＜03′00″ |
| OPB-12.7C03-10-5 | φ12.7mm | 3mm | λ/10 | ＜00′05″ |
| OPB-12.7C03-4-5 | φ12.7mm | 3mm | λ/4 | ＜00′05″ |
| OPB-12.7C05-10-5 | φ12.7mm | 5mm | λ/10 | ＜00′05″ |
| OPB-12.7C05-4-5 | φ12.7mm | 5mm | λ/4 | ＜00′05″ |
| OPB-15C01-1-5 | φ15mm | 1mm | λ | ＜00′05″ |
| OPB-15C01-P | φ15mm | 1mm | 4λ* | ＜03′00″ |
| OPB-15C02-10-5 | φ15mm | 2mm | λ/10 | ＜00′05″ |
| OPB-15C02-4-5 | φ15mm | 2mm | λ/4 | ＜00′05″ |
| OPB-15C02-1-5 | φ15mm | 2mm | λ | ＜00′05″ |
| OPB-15C02-P | φ15mm | 2mm | 4λ* | ＜03′00″ |
| OPB-15C03-20-2 | φ15mm | 3mm | λ/20 | ＜00′02″ |
| OPB-15C03-10-5 | φ15mm | 3mm | λ/10 | ＜00′05″ |
| OPB-15C03-4-5 | φ15mm | 3mm | λ/4 | ＜00′05″ |
| OPB-15C03-1-5 | φ15mm | 3mm | λ | ＜00′05″ |
| OPB-15C03-P | φ15mm | 3mm | 4λ* | ＜03′00″ |
| OPB-15C05-20-2 | φ15mm | 5mm | λ/20 | ＜00′02″ |
| OPB-15C05-10-5 | φ15mm | 5mm | λ/10 | ＜00′05″ |
| OPB-15C05-4-5 | φ15mm | 5mm | λ/4 | ＜00′05″ |
| OPB-15C05-1-5 | φ15mm | 5mm | λ | ＜00′05″ |
| OPB-15C05-P | φ15mm | 5mm | 4λ* | ＜03′00″ |
| OPB-20C01-1-5 | φ20mm | 1mm | λ | ＜00′05″ |
| OPB-20C01-P | φ20mm | 1mm | 4λ* | ＜03′00″ |
| OPB-20C02-10-5 | φ20mm | 2mm | λ/10 | ＜00′05″ |
| OPB-20C02-4-5 | φ20mm | 2mm | λ/4 | ＜00′05″ |
| OPB-20C02-1-5 | φ20mm | 2mm | λ | ＜00′05″ |
| OPB-20C02-P | φ20mm | 2mm | 4λ* | ＜03′00″ |
| OPB-20C03-20-2 | φ20mm | 3mm | λ/20 | ＜00′02″ |
| OPB-20C03-10-5 | φ20mm | 3mm | λ/10 | ＜00′05″ |
| OPB-20C03-4-5 | φ20mm | 3mm | λ/4 | ＜00′05″ |
| OPB-20C03-1-5 | φ20mm | 3mm | λ | ＜00′05″ |
| OPB-20C03-P | φ20mm | 3mm | 4λ* | ＜03′00″ |
| OPB-20C05-20-2 | φ20mm | 5mm | λ/20 | ＜00′02″ |
| OPB-20C05-10-5 | φ20mm | 5mm | λ/10 | ＜00′05″ |
| OPB-20C05-4-5 | φ20mm | 5mm | λ/4 | ＜00′05″ |
| OPB-20C05-1-5 | φ20mm | 5mm | λ | ＜00′05″ |
| OPB-20C05-P | φ20mm | 5mm | 4λ* | ＜03′00″ |
| OPB-25C01-1-5 | φ25mm | 1mm | λ | ＜00′05″ |
| OPB-25C01-P | φ25mm | 1mm | 4λ* | ＜03′00″ |
| OPB-25C02-10-5 | φ25mm | 2mm | λ/10 | ＜00′05″ |
| OPB-25C02-4-5 | φ25mm | 2mm | λ/4 | ＜00′05″ |
| OPB-25C02-1-5 | φ25mm | 2mm | λ | ＜00′05″ |
| OPB-25C02-P | φ25mm | 2mm | 4λ* | ＜03′00″ |
| OPB-25C03-10-5 | φ25mm | 3mm | λ/10 | ＜00′05″ |
| OPB-25C03-4-5 | φ25mm | 3mm | λ/4 | ＜00′05″ |
| OPB-25C03-1-5 | φ25mm | 3mm | λ | ＜00′05″ |
| OPB-25C03-P | φ25mm | 3mm | 4λ* | ＜03′00″ |
| OPB-25C05-20-2 | φ25mm | 5mm | λ/20 | ＜00′02″ |
| OPB-25C05-10-5 | φ25mm | 5mm | λ/10 | ＜00′05″ |
| OPB-25C05-4-5 | φ25mm | 5mm | λ/4 | ＜00′05″ |
| OPB-25C05-1-5 | φ25mm | 5mm | λ | ＜00′05″ |
| OPB-25C05-P | φ25mm | 5mm | 4λ* | ＜03′00″ |
| OPB-25.4C03-10-5 | φ25.4mm | 3mm | λ/10 | ＜00′05″ |
| OPB-25.4C03-4-5 | φ25.4mm | 3mm | λ/4 | ＜00′05″ |
| OPB-25.4C05-10-5 | φ25.4mm | 5mm | λ/10 | ＜00′05″ |
| OPB-25.4C05-4-5 | φ25.4mm | 5mm | λ/4 | ＜00′05″ |
| OPB-30C01-1-5 | φ30mm | 1mm | λ | ＜00′05″ |
| OPB-30C01-P | φ30mm | 1mm | 4λ* | ＜03′00″ |
| OPB-30C02-10-5 | φ30mm | 2mm | λ/10 | ＜00′05″ |
| OPB-30C02-4-5 | φ30mm | 2mm | λ/4 | ＜00′05″ |
| OPB-30C02-1-5 | φ30mm | 2mm | λ | ＜00′05″ |
| OPB-30C02-P | φ30mm | 2mm | 4λ* | ＜03′00″ |
| OPB-30C03-10-5 | φ30mm | 3mm | λ/10 | ＜00′05″ |
| OPB-30C03-4-5 | φ30mm | 3mm | λ/4 | ＜00′05″ |
| OPB-30C03-1-5 | φ30mm | 3mm | λ | ＜00′05″ |
| OPB-30C03-P | φ30mm | 3mm | 4λ* | ＜03′00″ |
| OPB-30C04-10-5 | φ30mm | 4mm | λ/10 | ＜00′05″ |
| OPB-30C04-4-5 | φ30mm | 4mm | λ/4 | ＜00′05″ |
| OPB-30C04-1-5 | φ30mm | 4mm | λ | ＜00′05″ |
| OPB-30C04-P | φ30mm | 4mm | 4λ* | ＜03′00″ |
| OPB-30C05-20-2 | φ30mm | 5mm | λ/20 | ＜00′02″ |
| OPB-30C05-10-5 | φ30mm | 5mm | λ/10 | ＜00′05″ |
| OPB-30C05-4-5 | φ30mm | 5mm | λ/4 | ＜00′05″ |
| OPB-30C05-1-5 | φ30mm | 5mm | λ | ＜00′05″ |
| OPB-30C05-P | φ30mm | 5mm | 4λ* | ＜03′00″ |
| OPB-40C01-1-5 | φ40mm | 1mm | λ | ＜00′05″ |
| OPB-40C01-P | φ40mm | 1mm | 4λ* | ＜03′00″ |
| OPB-40C02-1-5 | φ40mm | 2mm | λ | ＜00′05″ |
| OPB-40C02-P | φ40mm | 2mm | 4λ* | ＜03′00″ |
| OPB-40C03-4-5 | φ40mm | 3mm | λ/4 | ＜00′05″ |
| OPB-40C03-1-5 | φ40mm | 3mm | λ | ＜00′05″ |
| OPB-40C03-P | φ40mm | 3mm | 4λ* | ＜03′00″ |
| OPB-40C04-10-5 | φ40mm | 4mm | λ/10 | ＜00′05″ |
| OPB-40C04-4-5 | φ40mm | 4mm | λ/4 | ＜00′05″ |
| OPB-40C04-1-5 | φ40mm | 4mm | λ | ＜00′05″ |
| OPB-40C04-P | φ40mm | 4mm | 4λ* | ＜03′00″ |
| OPB-40C06-20-2 | φ40mm | 6mm | λ/20 | ＜00′02″ |
| OPB-40C06-10-5 | φ40mm | 6mm | λ/10 | ＜00′05″ |
| OPB-40C06-4-5 | φ40mm | 6mm | λ/4 | ＜00′05″ |
| OPB-40C06-1-5 | φ40mm | 6mm | λ | ＜00′05″ |
| OPB-40C06-P | φ40mm | 6mm | 4λ* | ＜03′00″ |
| OPB-50C01-1-5 | φ50mm | 1mm | λ | ＜00′05″ |
| OPB-50C01-P | φ50mm | 1mm | 4λ* | ＜03′00″ |
| OPB-50C02-1-5 | φ50mm | 2mm | λ | ＜00′05″ |
| OPB-50C02-P | φ50mm | 2mm | 4λ* | ＜03′00″ |
| OPB-50C03-4-5 | φ50mm | 3mm | λ/4 | ＜00′05″ |
| OPB-50C03-1-5 | φ50mm | 3mm | λ | ＜00′05″ |
| OPB-50C03-P | φ50mm | 3mm | 4λ* | ＜03′00″ |
| OPB-50C05-10-5 | φ50mm | 5mm | λ/10 | ＜00′05″ |
| OPB-50C05-4-5 | φ50mm | 5mm | λ/4 | ＜00′05″ |
| OPB-50C05-1-5 | φ50mm | 5mm | λ | ＜00′05″ |
| OPB-50C05-P | φ50mm | 5mm | 4λ* | ＜03′00″ |
| OPB-50C08-20-2 | φ50mm | 8mm | λ/20 | ＜00′02″ |
| OPB-50C08-10-5 | φ50mm | 8mm | λ/10 | ＜00′05″ |
| OPB-50C08-4-5 | φ50mm | 8mm | λ/4 | ＜00′05″ |
| OPB-50C08-1-5 | φ50mm | 8mm | λ | ＜00′05″ |
| OPB-50C08-P | φ50mm | 8mm | 4λ* | ＜03′00″ |
| OPB-50.8C05-10-5 | φ50.8mm | 5mm | λ/10 | ＜00′05″ |
| OPB-50.8C05-4-5 | φ50.8mm | 5mm | λ/4 | ＜00′05″ |
| OPB-50.8C08-10-5 | φ50.8mm | 8mm | λ/10 | ＜00′05″ |
| OPB-50.8C08-4-5 | φ50.8mm | 8mm | λ/4 | ＜00′05″ |
| OPB-60C03-1-5 | φ60mm | 3mm | λ | ＜00′05″ |
| OPB-60C03-P | φ60mm | 3mm | 4λ* | ＜03′00″ |
| OPB-60C06-10-5 | φ60mm | 6mm | λ/10 | ＜00′05″ |
| OPB-60C06-4-5 | φ60mm | 6mm | λ/4 | ＜00′05″ |
| OPB-60C06-1-5 | φ60mm | 6mm | λ | ＜00′05″ |
| OPB-60C06-P | φ60mm | 6mm | 4λ* | ＜03′00″ |
| OPB-60C10-20-2 | φ60mm | 10mm | λ/20 | ＜00′02″ |
| OPB-60C10-10-5 | φ60mm | 10mm | λ/10 | ＜00′05″ |
| OPB-60C10-4-5 | φ60mm | 10mm | λ/4 | ＜00′05″ |
| OPB-60C10-1-5 | φ60mm | 10mm | λ | ＜00′05″ |
| OPB-60C10-P | φ60mm | 10mm | 4λ* | ＜03′00″ |
| OPB-80C08-10-5 | φ80mm | 8mm | λ/10 | ＜00′05″ |
| OPB-80C08-4-5 | φ80mm | 8mm | λ/4 | ＜00′05″ |
| OPB-80C08-1-5 | φ80mm | 8mm | λ | ＜00′05″ |
| OPB-80C08-P | φ80mm | 8mm | 4λ* | ＜03′00″ |
| OPB-80C12-20-2 | φ80mm | 12mm | λ/20 | ＜00′02″ |
| OPB-80C12-10-5 | φ80mm | 12mm | λ/10 | ＜00′05″ |
| OPB-80C12-4-5 | φ80mm | 12mm | λ/4 | ＜00′05″ |
| OPB-80C12-1-5 | φ80mm | 12mm | λ | ＜00′05″ |
| OPB-80C12-P | φ80mm | 12mm | 4λ* | ＜03′00″ |
| OPB-100C10-10-5 | φ100mm | 10mm | λ/10 | ＜00′05″ |
| OPB-100C10-4-5 | φ100mm | 10mm | λ/4 | ＜00′05″ |
| OPB-100C10-1-5 | φ100mm | 10mm | λ | ＜00′05″ |
| OPB-100C10-P | φ100mm | 10mm | 4λ* | ＜03′00″ |
| OPB-100C15-20-2 | φ100mm | 15mm | λ/20 | ＜00′02″ |
| OPB-100C15-10-5 | φ100mm | 15mm | λ/10 | ＜00′05″ |
| OPB-100C15-4-5 | φ100mm | 15mm | λ/4 | ＜00′05″ |
| OPB-100C15-1-5 | φ100mm | 15mm | λ | ＜00′05″ |
| OPB-100C15-P | φ100mm | 15mm | 4λ* | ＜03′00″ |
| OPB-130C13-10-5 | φ130mm | 13mm | λ/10 | ＜00′05″ |
| OPB-130C13-4-5 | φ130mm | 13mm | λ/4 | ＜00′05″ |
| OPB-130C13-1-5 | φ130mm | 13mm | λ | ＜00′05″ |
| OPB-130C13-P | φ130mm | 13mm | 4λ* | ＜03′00″ |
| OPB-130C18-10-5 | φ130mm | 18mm | λ/10 | ＜00′05″ |
| OPB-130C18-4-5 | φ130mm | 18mm | λ/4 | ＜00′05″ |
| OPB-130C18-1-5 | φ130mm | 18mm | λ | ＜00′05″ |
| OPB-130C18-P | φ130mm | 18mm | 4λ* | ＜03′00″ |
| OPB-150C15-10-5 | φ150mm | 15mm | λ/10 | ＜00′05″ |
| OPB-150C15-4-5 | φ150mm | 15mm | λ/4 | ＜00′05″ |
| OPB-150C15-1-5 | φ150mm | 15mm | λ | ＜00′05″ |
| OPB-150C15-P | φ150mm | 15mm | 4λ* | ＜03′00″ |
| OPB-150C20-10-5 | φ150mm | 20mm | λ/10 | ＜00′05″ |
| OPB-150C20-4-5 | φ150mm | 20mm | λ/4 | ＜00′05″ |
| OPB-150C20-1-5 | φ150mm | 20mm | λ | ＜00′05″ |
| OPB-150C20-P | φ150mm | 20mm | 4λ* | ＜03′00″ |
* 4λ shows the surface flatness of the measurement area of φ30mm.
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