Non-polarizing Cube Half Mirror / NPCH
Half mirrors have an even 1:1 ratio of reflection and transmission in both linear polarized light and normal light source.
Common Specifications
| Material | BK7 Synthetic fused silica |  |
|---|---|---|
| Surface Flatness of Substrate | λ/4 | |
| Beam Deviation | ＜5′ | |
| Coating | Hypotenuse surface; Dielectric multilayer coating Four surfaces; Multilayer antireflection coating |
|
| Incident Angle | 0° | |
| Divergence Ratio (reflectance : transmittance) |
1:1 | |
| Laser Damage Threshold | 0.3J/cm2 (Laser pulse width 10ns, repetition frequency 20Hz) |
|
| Surface Quality (Scratch-Dig) | 20 － 10 | |
| Clear Aperture | Circle that inscribed in a square of 85% of the dimensions (Circle inscribed in a square of 80% of the dimensions, in case of 5 and 7mm) |
| Schematic | Outline Drawing |
|---|---|
 |
 |
| 266 － 532nm | ||||
|---|---|---|---|---|
| Part Number | Wavelength Range | A=B=C | Material | Transmittance |
| NPCH-10-2660 | 266nm | 10mm | Synthetic fused silica | 50±10% |
| NPCH-15-2660 | 266nm | 15mm | Synthetic fused silica | 50±10% |
| NPCH-20-2660 | 266nm | 20mm | Synthetic fused silica | 50±10% |
| NPCH-10-3550 | 355nm | 10mm | Synthetic fused silica | 50±7% |
| NPCH-15-3550 | 355nm | 15mm | Synthetic fused silica | 50±7% |
| NPCH-20-3550 | 355nm | 20mm | Synthetic fused silica | 50±7% |
| NPCH-10-4050 | 405nm | 10mm | BK7 | 50±7% |
| NPCH-15-4050 | 405nm | 15mm | BK7 | 50±7% |
| NPCH-20-4050 | 405nm | 20mm | BK7 | 50±7% |
| NPCH-10-4880 | 488nm | 10mm | BK7 | 50±5% |
| NPCH-15-4880 | 488nm | 15mm | BK7 | 50±5% |
| NPCH-20-4880 | 488nm | 20mm | BK7 | 50±5% |
| NPCH-10-5145 | 514.5nm | 10mm | BK7 | 50±5% |
| NPCH-15-5145 | 514.5nm | 15mm | BK7 | 50±5% |
| NPCH-20-5145 | 514.5nm | 20mm | BK7 | 50±5% |
| NPCH-10-5320 | 532nm | 10mm | BK7 | 50±5% |
| NPCH-15-5320 | 532nm | 15mm | BK7 | 50±5% |
| NPCH-20-5320 | 532nm | 10mm | BK7 | 50±5% |
| Circle Type: Nonpolarizing 632.8 － 1550nm | ||||
|---|---|---|---|---|
| Part Number | Wavelength Range | A=B=C | Material | Transmittance |
| NPCH-05-6328 | 632.8nm | 5mm | BK7 | 50±5% |
| NPCH-10-6328 | 632.8nm | 10mm | BK7 | 50±5% |
| NPCH-15-6328 | 632.8nm | 15mm | BK7 | 50±5% |
| NPCH-20-6328 | 632.8nm | 20mm | BK7 | 50±5% |
| NPCH-10-6700 | 670nm | 10mm | BK7 | 50±5% |
| NPCH-15-6700 | 670nm | 15mm | BK7 | 50±5% |
| NPCH-20-6700 | 670nm | 20mm | BK7 | 50±5% |
| NPCH-10-7800 | 780nm | 10mm | BK7 | 50±5% |
| NPCH-15-7800 | 780nm | 15mm | BK7 | 50±5% |
| NPCH-20-7800 | 780nm | 20mm | BK7 | 50±5% |
| NPCH-10-8300 | 830nm | 10mm | BK7 | 50±5% |
| NPCH-15-8300 | 830nm | 15mm | BK7 | 50±5% |
| NPCH-20-8300 | 830nm | 20mm | BK7 | 50±5% |
| NPCH-10-10640 | 1064nm | 10mm | BK7 | 50±5% |
| NPCH-15-10640 | 1064nm | 15mm | BK7 | 50±5% |
| NPCH-20-10640 | 1064nm | 20mm | BK7 | 50±5% |
| NPCH-10-13000 | 1300nm | 10mm | BK7 | 50±5% |
| NPCH-15-13000 | 1300nm | 15mm | BK7 | 50±5% |
| NPCH-20-13000 | 1300nm | 20mm | BK7 | 50±5% |
| NPCH-10-15500 | 1550nm | 10mm | BK7 | 50±5% |
| NPCH-15-15500 | 1550nm | 15mm | BK7 | 50±5% |
| NPCH-20-15500 | 1550nm | 20mm | BK7 | 50±5% |
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