R NEUTRAL DENSITY FILTER SETS
For your convenience and ecomony, Andover offers its metallic-coated infrared neutral density filters (IR ND filters) in sets. The cost is 10% lower than purchasing the individual parts, and they are supplied with a sturdy, hardwood storage case.
Andover's IR ND filters exhibit outstanding spectral neutrality, outperforming all others on the market. General specificatiosn are listed below. For individual part specifications, click here.
BENEFITS
- Provides attenuation with greater linearity over a wide spectral range
- Delivers superior durability
- Custom substrates available
COMMON APPLICATIONS
- Thermal imaging
- Medical imaging
- IR test bench
- IR photography

General Specifications:
| Dimensional Tolerances: | ±0.2mm |
| Thickness: | 1.0mm |
| Min. Clear Aperture: | 90% of outside dimension |
| Surface Quality: | 80/50 per MIL-O-13830B |
| Coating Quality: | 80/50 per MIL-O-13830B |
| Coating Adherence: | Per MIL-M-13508C |
| Humidity: | Per MIL-STD-810F |
| Substrate Material: | Germanium |
| Flatness: | 3–5 waves per 25mm |
| Parallelism: | 10 arc minutes or better |
| Mechanical: | Unmounted |
하기 링크 참조
https://www.andovercorp.com/products/infrared-filters/ir-neutral-density-filter-sets/
R NEUTRAL DENSITY FILTER SETS
For your convenience and ecomony, Andover offers its metallic-coated infrared neutral density filters (IR ND filters) in sets. The cost is 10% lower than purchasing the individual parts, and they are supplied with a sturdy, hardwood storage case.
Andover's IR ND filters exhibit outstanding spectral neutrality, outperforming all others on the market. General specificatiosn are listed below. For individual part specifications, click here.
BENEFITS
- Provides attenuation with greater linearity over a wide spectral range
- Delivers superior durability
- Custom substrates available
COMMON APPLICATIONS
- Thermal imaging
- Medical imaging
- IR test bench
- IR photography

General Specifications:
| Dimensional Tolerances: | ±0.2mm |
| Thickness: | 1.0mm |
| Min. Clear Aperture: | 90% of outside dimension |
| Surface Quality: | 80/50 per MIL-O-13830B |
| Coating Quality: | 80/50 per MIL-O-13830B |
| Coating Adherence: | Per MIL-M-13508C |
| Humidity: | Per MIL-STD-810F |
| Substrate Material: | Germanium |
| Flatness: | 3–5 waves per 25mm |
| Parallelism: | 10 arc minutes or better |
| Mechanical: | Unmounted |
하기 링크 참조
https://www.andovercorp.com/products/infrared-filters/ir-neutral-density-filter-sets/