
Adjustable Flip Mirror Mount TMR90, Ø25.4 mm Optics, 90° Flip, Pitch/Yaw ±3°
TMR90Design Tools
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The TMR90 is an adjustable flip mirror mount for Ø25.4 mm optics at least 3 mm thick. The optic folds 90° downward along the optical axis to clear the beam path and returns to its original position with a repeatability better than 60″, while two M4 × 0.2 adjusters give ±3° of pitch and yaw. The mount is about one third the volume of a standard kinematic mirror mount and has an M4 tapped hole at the center of the base for post mounting.
Key Features
- A 90° downward folding design along the Optical Axis, which can avoid the Optical Path.
- Pitch / Yaw angle range: ±3°
- Repeat positioning accuracy less than 60″
- Suitable for mounting Circular Optical Components
- The applicable minimum Thickness of Optical Components is 3 mm.
- M4 Tapped Mounting Holes
Typical Applications
- Switching a mirror or filter in and out of a beam path without realignment
- Inserting alignment or diagnostic optics temporarily into a setup
- Toggling between two optical paths on a breadboard
- Compact setups where a standard kinematic mount does not fit
Application Example

Related Products
- TM90 Flip Mount — fixed 90° flip mount
- FMS-90 Flip Mount — flip mount
- TM180 180° Flip Platform — 180° flip platform
- TMF-90 90° Flip Mount — 90° flip mount
Browse all: Flip and Centering Mounts
SKU: TMR90 · Sourced from LBTEK · Distributed by WaveQuanta
| Applicable Optic Diameter | Ø25.4 mm |
| Minimum Optic Thickness | 3 mm |
| Flip Angle | 90° |
| Pitch / Yaw Adjustment | ±3° |
| Repeatability (flip and return) | < 60″ |
| Adjusters | M4 × 0.2, 2 pcs |
| Optic Retention | M4 plastic-tip set screw |
| Mounting | M4 tapped hole at base center |
| Material | 6061-T6 aluminum |
| Surface Finish | Black anodized |
Product Family: Flip and Centering Mounts (6 variants)
| Product | SKU | Size | Clear Aperture | Operating Wavelength | |
|---|---|---|---|---|---|
| Adjustable Flip Mirror Mount TMR90, Ø25.4 mm Optics, 90° Flip, Pitch/Yaw ±3° Current |
TMR90
| — | — | — | |
| Flip Mounts TM90 |
TM90
| — | — | — | View |
| Flip Mounts FMS-90 |
FMS-90
| — | — | — | View |
| Centering Plates VCP |
VCP
| — | — | — | View |
| Centering Plates FCP1 |
FCP1
| — | — | — | View |
| 180° Flip Platform TM180 |
TM180
| — | — | — | View |





