Products Home / Optomechanical Components / Optomechanical Mounts / Optical Mirror Mounts / Fixed Mirror Mounts for OEM ApplicationsFixed Mirror Mounts for OEM Applications
- Fixed Mounts for Ø1/2", Ø1", Ø1.5", or Ø2" Optics
- Matching Optic Axis Height for OEM Applications
- Baseplates Available for Breadboard Compatibility
FMM2F
Ø2" Front-Loading Mirror Mount
FMM15R
Ø1.5" Rear-Loading Mirror Mount
FMB1
Rotating Baseplate for Mirror Mounts
FMM05R
Ø1/2" Rear-Loading Mirror Mount
FMM1F
Ø1" Front-Loading Mirror Mount
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| Quick Links |
|---|
| Front-Loading Fixed Mirror Mounts |
| Rear-Loading Fixed Mirror Mounts |
| Translation Baseplates for OEM Fixed Optic Mounts |
| Rotation Baseplates for OEM Fixed Optic Mounts |
| Table 1.1 Vacuum Specifications | |
|---|---|
| Vacuum Compatibility as Packageda,b |
>10-6 Torr |
| Materials | 6061-T6 Aluminum |
| Preparation and Packaging |
Chemically Cleaned and Double Vacuum-Bagged |
Mounts for OEMs
Thorlabs' Fixed Mirror Mounts were designed to meet the needs of OEM customers. To that end, we are equipped to manufacture these mounts in high volumes and with timed delivery. Additionally, we can design and manufacture modified versions of these mounts for mounting additional optic types, sizes, and shapes. For example, we have produced similar fixed mounts for square mirrors, diffraction gratings, different optic sizes, or different beam heights. To find out more about our OEM capabilities, please contact Tech Sales.
Features
- Fixed Mirror Mounts for Ø1/2", Ø1", Ø1.5", or Ø2" Optics
- Front-Loading and Rear-Loading Mounts
- Suitable for Vacuum Applications When Nylon-Tipped Setscrew Removed
- Mounting Options:
- Nylon-Tipped Setscrew Secures Optic in Mounts
- Mounting Plane and 3 Glue Ports for Glue-In Mounting
- Common Optical Axis Height of 1.50"
- Mounting Holes for Use with 1/4" (M6) Screws
- Breadboard Compatibility via Translation or Rotation Baseplates
Thorlabs' Fixed Optic Mounts for OEM Applications are designed to support a seamless transition from benchtop R&D to high-volume OEM laser system production. All mounts share a unified optical axis height, providing beam path consistency and interchangeability to help simplify prototype layout and production integration. Separate baseplates provide breadboard compatibility for prototyping flexibility and integration into full optical systems during the development phase. The fixed optic height and mechanical footprint allow for direct transfer of mounts into the proven system, with a cavity-ready form factor supporting direct mounting into custom laser system substructures. This overall architecture enables OEM designers to rapidly develop and iterate optical systems on standard breadboards, then deploy those exact assemblies in production environments with no change in alignment geometry, reducing validation requirements and increasing long-term system reliability.
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Figure 1.2 Both front-loading and rear-loading fixed mirror mounts are available. Cutouts in the optic bore increase the transmissive clear aperture, particularly when used at 45° AOI. The Ø1" versions are shown here.
For applications where kinematic adjustment is not needed, these fixed optical mounts provide a solution for securing mirrors or other optical components. They feature a built-in mounting flange and maintain a common mounting height across all sizes, making them ideal for OEM applications. Each mount is fabricated from unanodized 6061-T6 aluminum and double vacuum-bagged, making them suitable for cleanroom and vacuum chamber environments; vacuum specifications are provided in Table 1.1. These mounts share the same optical height as our fixed lens mounts making them well-suited for OEM integration.
Front-Loading or Rear-Loading Fixed Mirror Mounts for OEM Applications (FMM Series)
Thorlabs' FMM series of fixed mirror mounts are available for optic sizes of Ø1/2", Ø1", Ø1.5", or Ø2". Each mount is designed to load optics from either the front or the rear of the mount, with a nylon-tipped setscrew on top of the mount for securing the optic in place. For more permanent mounting, or for use in vacuum environments, three glue ports are included for retaining optics. These mounts feature cutouts in the mounting plane to increase the transmissive clear aperture, particularly when used at 45° angle of incidence, as shown in Figure 1.2. Two through holes on the mounting flange are designed to accept 1/4" (M6) screws for mounting purposes, including one tight-fit clearance hole for use with a shoulder screw of the same size to aid in positioning.
Baseplates for OEM Fixed Optical Mounts
To ensure compatibility with standard breadboards or optical tables, baseplates are available separately. Options include manual translation baseplates, which provide up to 1.5" (31.8 mm) of linear mount travel, and rotation baseplates, which offer up to 90° of rotational adjustment.
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Figure G1.1 FMM1F Front-Loading Mirror Mount with a Protected Silver Mirror
- Accommodates Ø1/2" (Ø12.7 mm), Ø1" (Ø25.4 mm), Ø1.5" (Ø38.1 mm), or Ø2" (Ø50.8 mm) Optics
- Nylon-Tipped Locking Setscrew with 5/64" (2.0 mm) Hex
- Mounting Holes for 1/4" (M6) Screws
The FMM Series Front-Loading Fixed Mirror Mounts offer a simple way to mount mirrors or other optical components and are available for Ø1/2" (Ø12.7 mm), Ø1" (Ø25.4 mm), Ø1.5" (Ø38.1 mm), or Ø2" (Ø50.8 mm) optics. The mounts feature a rear mounting surface for the front-loading of optics and are made from unanodized 6061-T6 aluminum. The optic can be held in place by a nylon-tipped locking setscrew, which can be fastened using a 5/64" (2.0 mm) balldriver or hex key. Three optic glue ports are included for more permanent mounting or applications in vacuum environments. The mounting flange includes two through holes for 1/4" (M6) screws, with one being a tight-fit clearance hole for use with a shoulder screw to aid in positioning. Each mount shares a common optical axis height, making them ideal for OEM applications.
| Item # | Optic Size | Clear Aperture | Optic Bore Depth | Min. Optic Thicknessa | Optical Axis Height |
|---|---|---|---|---|---|
| FMM05F(/M) | Ø1/2" (Ø12.7 mm) | Ø0.45" (Ø11.4 mm) | 0.21" (5.3 mm) | 0.14" (3.5 mm) | 1.50" (38.1 mm) |
| FMM1F(/M) | Ø1" (Ø25.4 mm) | Ø0.90" (Ø22.9 mm) | 0.21" (5.3 mm) | 0.14" (3.5 mm) | |
| FMM15F(/M) | Ø1.5" (Ø38.1 mm) | Ø1.43" (Ø36.2 mm) | 0.45" (11.3 mm) | 0.25" (6.4 mm) | |
| FMM2F(/M) | Ø2" (Ø50.8 mm) | Ø1.90" (Ø48.3 mm) | 0.45" (11.3 mm) | 0.25" (6.4 mm) |
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Figure G2.1 FMM05R Rear-Loading Mirror Mount with a Protected Gold Mirror
- Accommodates Ø1/2" (Ø12.7 mm), Ø1" (Ø25.4 mm), Ø1.5" (Ø38.1 mm), or Ø2" (Ø50.8 mm) Optics
- Nylon-Tipped Locking Setscrew with 5/64" (2.0 mm) Hex
- Mounting Holes for 1/4" (M6) Screws
The FMM Series Rear-Loading Fixed Mirror Mounts offer a simple way to mount mirrors or other optical components and are available for Ø1/2" (Ø12.7 mm), Ø1" (Ø25.4 mm), Ø1.5" (Ø38.1 mm), or Ø2" (Ø50.8 mm) optics. The mounts feature a front mounting surface for the rear-loading of optics and are made from unanodized 6061-T6 aluminum. The optic can be held in place by a nylon-tipped locking setscrew, which can be fastened using a 5/64" (2.0 mm) balldriver or hex key. Three optic glue ports are included for more permanent mounting or applications in vacuum environments. The mounting flange includes two through holes for 1/4" (M6) screws, with one being a tight-fit clearance hole for use with a shoulder screw to aid in positioning. Each mount shares a common optical axis height, making them ideal for OEM applications.
| Item # | Optic Size | Clear Aperture | Optic Bore Depth | Min. Optic Thicknessa | Optical Axis Height |
|---|---|---|---|---|---|
| FMM05R(/M) | Ø1/2" (Ø12.7 mm) | Ø0.45" (Ø11.4 mm) | 0.21" (5.3 mm) | 0.14" (3.5 mm) | 1.50" (38.1 mm) |
| FMM1R(/M) | Ø1" (Ø25.4 mm) | Ø0.90" (Ø22.9 mm) | 0.21" (5.3 mm) | 0.14" (3.5 mm) | |
| FMM15R(/M) | Ø1.5" (Ø38.1 mm) | Ø1.43" (Ø36.2 mm) | 0.45" (11.3 mm) | 0.25" (6.4 mm) | |
| FMM2R(/M) | Ø2" (Ø50.8 mm) | Ø1.90" (Ø48.3 mm) | 0.45" (11.3 mm) | 0.25" (6.4 mm) |
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- Attach OEM Fixed Optical Mounts via 1/4"-20 (M6 x 1.0) Square Nut
- Mount on Breadboard or Optical Table via Clearance Hole for 1/4" (M6) Cap Screws
- Translation Slot Provides Up to 1.25" (31.8 mm) Linear Translation
These baseplates provide compatibility between OEM fixed optic mounts and standard breadboards or optical tables. Each baseplate includes four counterbored mounting holes for 1/4" (M6) cap screws to secure it to the optical table. Optic mounts are attached using two 1/4"-20 (M6 x 1.0) square nuts inserted into the translation clearance slots on the baseplate. This configuration allows the mounts to be translated by up to 1.25" (31.8 mm) while the baseplate remains stationary, as shown in Figure 803A.
The FMB2(/M) translation baseplate is compatible with OEM fixed optic mounts designed for Ø1/2" (Ø12.7 mm) and Ø1" (Ø25.4 mm) optics. The FMB3(/M) translation baseplate is compatible with mounts designed for Ø1.5" (Ø38.1 mm) and Ø2" (Ø50.8 mm) optics.
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Figure 788A Two Rear-Loading Mirror Mounts with Dichroic Mirrors Mounted on FMB1 Baseplates
- Attach OEM Fixed Optic Mounts via 1/4"-20 (M6 x 1.0) Tapped Holes
- Included Dowel Pin Adapter Provides Pivot Point for Rotation
- Mount on Breadboard or Optical Table via Clearance Slot for 1/4" (M6) Cap Screws
- Clearance Slot Provides Up to 90° Rotation
The FMB1(/M) Rotation Baseplate provides compatibility between the OEM fixed optic mounts and standard breadboards or optical tables. Four 1/4"-20 (M6 x 1.0) tapped holes through the baseplate match the footprint of all sizes of the OEM fixed optic mounts. An included dowel pin adapter is threaded into the central 1/4"-20 (M6 x 1.0) tap, providing a pivot point about which the baseplate can rotate when placed in one of the holes of a breadboard or optical table. A curved clearance slot allows the baseplate to be secured to a breadboard or optical table and provides up to 90° of rotation without removing the mounting cap screw.
Fixed Mirror Mounts for OEM Applications