Polka Dot Beamspliter / PDBS
The polka dot beamsplitter is a beamsplitter that has aluminum coating of halftone dots (polka dots) on the glass substrate.
It has a low dependence on the incident angle and can be used in a wide range of wavelengths from ultraviolet region to the infrared region.
Common Specifications
Material | Synthetic fused silica | |
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Parallelism | <3′ | |
Coating | Front surface: Al+MgF2 Rear suftace: Uncoated |
|
Recommnnded Angle of Incidence | 0 - 45° | |
Wavelength Range | 250 - 2200nm | |
Surface Quality (Scratch-Dig) | 80 - 50 | |
Dot Pitch | 0.3mm | |
Clear Aperture | Circle except surrounding 1.5mm |
Schematic | Outline Drawing |
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Part Number | Reflectance : Transmittance | Diameter φD |
Thickness t |
Transmission (Wavelength range 555nm, angle of incidence: 0°) |
---|---|---|---|---|
PDBS70-25.4C1.5 | 70:30 | φ25.4mm | 1.5mm | 30%(+0/-5%) |
PDBS70-50.8C1.5 | 70:30 | φ50.8mm | 1.5mm | 30%(+0/-5%) |
PDBSH-25.4C1.5 | 50:50 | φ25.4mm | 1.5mm | 50%(+0/-5%) |
PDBSH-50.8C1.5 | 50:50 | φ50.8mm | 1.5mm | 50%(+0/-5%) |
PDBS30-25.4C1.5 | 30:70 | φ25.4mm | 1.5mm | 70%(+0/-5%) |
PDBS30-50.8C1.5 | 30:70 | φ50.8mm | 1.5mm | 70%(+0/-5%) |