Products Home / Optomechanical Components / Optical Post Assemblies / Mini-Series Optical Post Assemblies / Mini-Series Fixed Lens MountsMini-Series Fixed Lens Mounts
- Fixed Mounts for Various Optic Diameters
- Internal Threading for Mounting Optics
- 4-40 (M3) Tap for Post Mounting
MLH05
Ø1/2" Fixed Optic Mount
MLH5
Ø5 mm Fixed Optic Mount
MLH05 Post-Mounted with Plano-Convex Lens
Application Ideas
MLH7 Post-Mounted with a Silver Mirror
MLH10
Ø10 mm Fixed Optic Mount
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MLH10 Mounted at 90° Using Right-Angle Adapter Post-Mounted to Aluminum BreadboardFeatures
- Internally Threaded Mounts
- Mounts for Seven Optic Diameters from Ø5 mm to Ø1/2" (Ø12.5 mm)
- 10 mm Optical Axis Height Matches Mini-Series Kinematic Mounts
- Retaining Rings for Securing Optics in Place
- Spanner Wrenches for Safe and Easy Optic Placement
Our Mini-Series Fixed Lens Mounts are available for seven distinct optic diameters ranging from Ø5 mm to Ø1/2", feature internal threading, and come complete with one retaining ring for securing an optic in place. A bottom-located 4-40 (M3) tapped hole is provided to mount directly to our Ø6 mm Mini-Series posts or Ø12 mm pedestal posts. Our Mini-Series post holders allow our Ø6 mm posts to be mounted onto our Mini-Series breadboards.
We also offer additional retaining rings and corresponding spanner wrenches for safe and easy optic placement.
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| Item # | Optic Diameter |
Max Optic Thicknessa |
Clear Apertureb | Optical Height | Included Retaining Ring |
Suggested Spanner Wrench |
|---|---|---|---|---|---|---|
| MLH5(/M) | Ø5 mm | 0.16" (4.0 mm) | Ø0.15" (Ø3.8 mm) | 0.39" (10 mm) | SM5RR | SPW205 or SPW801 |
| MLH6(/M) | Ø6 mm | 0.16" (4.0 mm) | Ø0.19" (Ø4.8 mm) | 0.39" (10 mm) | SM6RR | SPW206 or SPW801 |
| MLH7(/M) | Ø7 mmc | 0.21" (5.3 mm) | Ø0.23" (Ø5.8 mm) | 0.39" (10 mm) | SM7RR | SPW207 or SPW801 |
| MLH8(/M) | Ø8 mmd | 0.21" (5.3 mm) | Ø0.27" (Ø6.9 mm) | 0.39" (10 mm) | SM8RR | SPW208 or SPW801 |
| MLH9(/M) | Ø9 mm | 0.21" (5.3 mm) | Ø0.31" (Ø7.9 mm) | 0.39" (10 mm) | SM9RR | SPW209 or SPW801 |
| MLH10(/M) | Ø10 mm | 0.21" (5.3 mm) | Ø0.35" (Ø8.8 mm) | 0.39" (10 mm) | SM10RR | SPW210 or SPW801 |
| MLH05(/M) | Ø1/2"e,f | 0.21" (5.3 mm) | Ø0.44" (Ø11.0 mm) | 0.39" (10 mm) | SM05RR | SPW603, SPW603L, or SPW801 |
Zoom- Threaded Rings for Securing Optics into Place
- Made from Black Anodized Aluminum
- SM05-Threaded Rings Available in Multipacks
These Retaining Rings are replacements for those that are provided with our fixed optic mounts featured above. We also offer retaining rings in additional sizes on our main Retaining Rings page.
For ordering convenience, our Ø1/2" Retaining Ring, the SM05RR, is available in packs of 10.
ZoomThese spanner wrenches are designed to install or adjust the retaining rings included with our Mini-Series Fixed Optic Mounts. The hollow construction of each spanner wrench allows the retaining ring to be adjusted without obscuring the beam path. They feature knurled handles for improved grip as well as guide flanges that prevent most optical surfaces from being scratched while the wrench is inserted. The table below details which Mini-Series fixed optic mount or retaining ring is compatible with each spanner wrench.
To view all our retaining ring installation and adjustment options, please click here.
| Spanner Wrench Item # |
SPW205 | SPW206 | SPW207 | SPW208 | SPW209 | SPW210 | SPW603 | SPW603L |
|---|---|---|---|---|---|---|---|---|
| Compatible Mini-Series Fixed Optic Mount | MLH5(/M) | MLH6(/M) | MLH7(/M) | MLH8(/M) | MLH9(/M) | MLH10(/M) | MLH05(/M) | MLH05(/M) |
| Compatible Retaining Rings | SM5RR | SM6RR | SM7RR | SM8RR | SM9RR | SM10RR | SM05RR, SM05RRC, SM05LTRR, SM05PRR, POLARIS-SM05RR |
SM05RR, SM05RRC, SM05LTRR, SM05PRR, POLARIS-SM05RR |
| Feature | Stackable: One End of Spanner Wrench Fits to End of Other SpannerWrench to Reach Retaining Rings in Longer Lens Tubes | Engraved Scale | ||||||
| Length | 1.00" | 1.00" | 1.00" | 1.00" | 1.00" | 1.00" | 1.00" | 3.88" |
Zoom- Diameter Range from 0.12" to 2.89" (3.0 mm to 73.4 mm)
- Self-Centering, One-Handed Diameter Adjustment Mechanism
- Replaceable Stainless Steel Blades
Thorlabs' Adjustable Spanner Wrench features a spanning range that is continuously adjustable from 0.12" to 2.89" (3.0 mm to 73.4 mm). It is capable of providing an exact fit for retaining rings as large as the SM3RR for Ø3" Lens Tubes and Mounts. The diameter spanned by the blades remains centered while the knurled knob is adjusted.
The reversible blades have a flat tip on one end intended for use with retaining rings, and an edge-offset fine point on the opposing end for adapters with holes. The blades extend 1.6" (40.7 mm) from the body of the wrench. Hence, compared to our cylindrical spanner wrenches sold above, the SPW801 is ideal for securing lenses with a high radius of curvature because the guide flanges on the cylindrical spanner wrenches may come into contact with the lens. To reverse the blades, a 0.050" (1.3 mm) balldriver or hex key is needed. Replacement blade pairs are available separately.
The SPW801 wrench withstands a maximum torque of 80 inch-pounds (9 N·m).
Mini-Series Fixed Lens Mounts