| Interference Bandpass Filters |
|
Thickness: 0.25″ nominal
Surface Flatness: Figure: λ/2 for Y-direction, λ/4 for X-direction @ 633nm
Surface Quality: Commercial Polish
Centration Error: <3 arc min.
Focal Length Tolerance: ±0.5 %
Diameter Tolerance: +0.0/-0.25 mm
Thickness Tolerance: ±0.25 mm
Clear Aperture: >80% of diameter
Chamfer: 0.3mm at 45 typical |
 |
| Reflective Neutral Density Filters |
|
Thickness: VUV CaF2, UVFS or BK7
Surface Flatness: Figure: λ/2 for Y-direction, λ/4 for X-direction @ 633nm
Surface Quality: 20 – 10 laser quality
Centration Error: <3 arc min.
Focal Length Tolerance: ±0.5 %
Diameter Tolerance: +0.0/-0.20 mm
Thickness Tolerance: ±0.25 mm
Clear Aperture: >85% of diameter
Chamfer: 0.3mm at 45 typical |
 |
| Absorptive Neutral Density Filters |
|
Thickness: VUV CaF2, UVFS or BK7
Surface Flatness: Figure: λ/2 for Y-direction, λ/4 for X-direction @ 633nm
Surface Quality: 20 – 10 laser quality
Centration Error: <3 arc min.
Focal Length Tolerance: ±0.5 %
Diameter Tolerance: +0.0/-0.20 mm
Thickness Tolerance: ±0.25 mm
Clear Aperture: >85% of diameter
Chamfer: 0.3mm at 45 typical |
 |
| Long Wave Pass Filters |
|
Thickness: VUV CaF2, UVFS or BK7
Surface Flatness: Figure: λ/2 for Y-direction, λ/4 for X-direction @ 633nm
Surface Quality: 20 – 10 laser quality
Centration Error: <3 arc min.
Focal Length Tolerance: ±0.5 %
Diameter Tolerance: +0.0/-0.20 mm
Thickness Tolerance: ±0.25 mm
Clear Aperture: >85% of diameter
Chamfer: 0.3mm at 45 typical |
 |
| Short Wave Pass Filters |
|
Thickness: VUV CaF2, UVFS or BK7
Surface Flatness: Figure: λ/2 for Y-direction, λ/4 for X-direction @ 633nm
Surface Quality: 20 – 10 laser quality
Centration Error: <3 arc min.
Focal Length Tolerance: ±0.5 %
Diameter Tolerance: +0.0/-0.20 mm
Thickness Tolerance: ±0.25 mm
Clear Aperture: >85% of diameter
Chamfer: 0.3mm at 45 typical |
 |
| Color Glass Bandpass Filters |
|
Thickness: VUV CaF2, UVFS or BK7
Surface Flatness: Figure: λ/2 for Y-direction, λ/4 for X-direction @ 633nm
Surface Quality: 20 – 10 laser quality
Centration Error: <3 arc min.
Focal Length Tolerance: ±0.5 %
Diameter Tolerance: +0.0/-0.20 mm
Thickness Tolerance: ±0.25 mm
Clear Aperture: >85% of diameter
Chamfer: 0.3mm at 45 typical |
 |
| Color Glass Long Wave Sharp Cut Filters |
|
Thickness: VUV CaF2, UVFS or BK7
Surface Flatness: Figure: λ/2 for Y-direction, λ/4 for X-direction @ 633nm
Surface Quality: 20 – 10 laser quality
Centration Error: <3 arc min.
Focal Length Tolerance: ±0.5 %
Diameter Tolerance: +0.0/-0.20 mm
Thickness Tolerance: ±0.25 mm
Clear Aperture: >85% of diameter
Chamfer: 0.3mm at 45 typical |
 |
| Heat Control Filters |
|
Thickness: VUV CaF2, UVFS or BK7
Surface Flatness: Figure: λ/2 for Y-direction, λ/4 for X-direction @ 633nm
Surface Quality: 20 – 10 laser quality
Centration Error: <3 arc min.
Focal Length Tolerance: ±0.5 %
Diameter Tolerance: +0.0/-0.20 mm
Thickness Tolerance: ±0.25 mm
Clear Aperture: >85% of diameter
Chamfer: 0.3mm at 45 typical |
 |
| Heat Absorbing Filters |
|
Thickness: VUV CaF2, UVFS or BK7
Surface Flatness: Figure: λ/2 for Y-direction, λ/4 for X-direction @ 633nm
Surface Quality: 20 – 10 laser quality
Centration Error: <3 arc min.
Focal Length Tolerance: Â ±0.5 %
Diameter Tolerance: +0.0/-0.20 mm
Thickness Tolerance: ±0.25 mm
Clear Aperture: >85% of diameter
Chamfer: 0.3mm at 45 typical |
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