Spatial Filter, Compact, Five-Axis, XY θxθy 100TPI, Z 80TPI
Model: 910A
Product Series Overview
Compact Five-Axis Spatial FiltersThe 910A Compact Five Axis Spatial Filter has a space-efficient design combining five-axis alignment with high stability for set-and-forget adjustment. Precise XY translation of the pinhole plus true gimbaling of the entire assembly are achieved with precision 100 TPI screws with new knobs including an integral hex hole, providing smooth, high-resolution motion. Our new zero-free play XY mechanism ensures accurate positioning and enhanced long-term stability.
Spatial Filtering
| Objective Lens | Recommended Max Input Beam Diameter | Calculated Pinhole Diameter* | Recommended Pinhole Diameter | Recommended Pinhole |
| M-5X | 5.0 mm | 32.2 µm | 50 µm | 910PH-50 |
| M-10X | 5.5 mm | 20.9 µm | 25 µm | 910PH-25 |
| * For 1 mm diameter beam at 632.8 mm. For a tutorial, check out Fundamentals of Spatial Filtering. | ||||
Spatial filters allow the user to remove random fluctuations from the laser beam’s intensity profile, significantly improving an optical system’s resolution. This laser beam cleanup is especially important for applications such as holography and optical data processing. To produce this clean Gaussian beam, a spatial filter removes the unwanted multiple-order energy peaks, while passing only the central maximum of the diffraction pattern. A spatial filter will remove any additional spatial noise from an optical system, including scattered light in the beam profile caused by dust particles on or around the objective. The spatial filter assembly is made up of the microscope objective, a pinhole aperture and a positioning mechanism.
Intuitive and Easy Alignment
Precision Five-Axis Adjustments
Integral Iris Diaphragm
Independent Adjustment Locks
Easy Change Pinholes and Objectives
It's easy to change mounted pinholes, which simply thread into the body of the spatial filter. RMS-threaded objective lenses attach to the lens holder, which is then clamped to the positioner. The video shows how to install an M- Series objective lens and 910PH Series mounted pinhole assembly into the 910A. The lens holder has an integral iris diaphragm to aid in coarse alignment of the beam to the spatial filter and for blocking out stray light. Objective lenses and pinholes must be selected and purchased separately. These spatial filters are designed to accommodate select Microscope Objective Lenses models (RMS thread and slim body to fit into 910A's brass cylinder), and all 910PH Series High-Energy Pinhole Apertures.
Optical Table or Post Mounting
Resources & Downloads
3D Product Models
2D Product Drawings
910A(440.3 kB, PDF) Installing Objective Lens and Pinhole into 910A Spatial Filter(1:00)
Other
910A RoHS Certificate(267.1 kB, PDF)
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| Compare | Description | Drawings, CAD & Specs | Avail. | Price | ||
|---|---|---|---|---|---|---|
| 0.875-20 Threaded High Energy Molybdenum Pinholes | ||||||
| Microscope Objective Lens, 10x, 0.25 NA, 16.5 mm Focal Length | ||||||
| Microscope Objective Lens, 5x, 0.10 NA, 25.4 mm Focal Length | ||||||
| UV Objective Lens, 27x, 0.13 NA, 5.77 mm Focal Length, 245-440 nm | ||||||
| UV Objective Lens, 37x, 0.11 NA, 3.41 mm Focal Length, 245-440 nm |