Overview: D-Shaped pickoff mirrors allow for easy separation of two or
multiple beams which are aligned very closely together. The
reflective coating of D-shaped mirrors extends to the stage that
leaving less than 0.1mm distance to the straight edge of the
mirror, enabling the separation of closely spaced optical beams. In
addition, a wedge behind the mirror straight edge is cut to prevent
unselected rays from blocking the mirror. Star Optic provides
D-shaped pickoff mirrors in various sizes and wide variety of
dielectric and metallic coatings. General Specifications of D-Shaped Pickoff Mirror: | Dimension Tolerance | +0.0/-0.2mm | | Thickness Tolerance | ±0.2mm | | Surface Quality | 60/40 | | Clear Aperture | >90% | | Flatness | λ/10@632.8nm | | Coating | High reflective coating on one surface, back surface
ground or inspection polished - Protected Aluminum: Ravg>87%@400-1200nm, AOI0-45°
- Protected Silver: Ravg>95%@400-12000nm, AOI0-45°
- Protected Gold: Ravg>98%@2000-12000nm, AOI0-45°
- Dielectric HR coating: R>99%, AOI0-45°
| | Damage Threshold | >1J/cm2, 20ns, 20Hz, @1064nm |
Standard Products of D-Shaped Pickoff Mirror: | Part Number | Material | Diameter
(mm) | Thickness
(mm) | Wavelength | Coating | | DSM2506-PAL | BK7 | 25.4 | 6.35 | 400-1200 | Protected Aluminum | | DSM2506-PAG | BK7 | 25.4 | 6.35 | 400-12000 | Protected Silver | | DSM2506-PAU | BK7 | 25.4 | 6.35 | 2000-12000 | Protected Gold | | DSM2506-450-700 | BK7 | 25.4 | 6.35 | 450-700 | Dielectric HR | | DSM2506-750-1100 | BK7 | 25.4 | 6.35 | 750-1100 | Dielectric HR |
Coating Graphs of D-Shaped Pickoff Mirror: Protected Aluminum Coating
Ravg>87%@400-1200nm | Protected Silver Coating
Ravg>95%@400-12000nm | Protected Gold Coating
Ravg>98%@2000-12000nm | | 450-700nm D-Shaped Pickoff Mirror | 450-700nm D-Shaped Pickoff Mirror
| 750-1100nm D-Shaped Pickoff Mirror
| 750-1100nm D-Shaped Pickoff Mirror
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