Compact Kinematic Mounts

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Figure G1.1  KMS(/M) Mechanical Drawing

• Compact Profile: 1.00" x 1.13" x 1.30" (25.4 mm x 28.7 mm x 33.0 mm)
• Angular Range: ±4°
• Removable Knobs for Smooth, Long-Term Operation
• Two 8-32 (M4) Tapped Holes for Vertical or Horizontal Post Mounting
  (See Figure G1.1)
• 4-40 Tapped Hole on Front Plate for Attachment of Mirror Holder
  (See Figure G1.1)

The KMS(/M) is a two-adjuster mirror mount with a compact design that occupies a 1.00" x 1.13" x 1.30" (25.4 mm x 28.7 mm x 33.0 mm) volume. The adjusters have removable knobs and are housed in bronze bushings to ensure smooth, long-term operation. In addition, the hex head on the adjusters allows a HKTS-5/64 hex key knob or 5/64" hex key to be used to make adjustments even when the knobs are removed.

The angular displacement range of the mirror face is ±4° with an adjustment per revolution of 15 mrad/rev. This mount has two 8-32 (M4) threaded holes that enable horizontal or vertical Ø1/2" post mounting. A 4-40 tapped hole on the front face plate of the mount allows our MH12, MH25, and MH25T Mirror Holders (available below) to be attached.

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Figure G2.1  KMSS(/M) Mechanical Drawing

• Compact Profile: 1.00" x 1.13" x 0.79" (25.4 mm x 28.7 mm x 20.1 mm)
• Angular Range: ±4°
• Shortened Adjuster Screws for Reduced Footprint
• Two 8-32 (M4) Tapped Holes for Vertical or Horizontal Post Mounting
  (See Figure G2.1)
• 4-40 Tapped Hole on Front Plate for Attachment of Mirror Holder
  (See Figure G2.1)

The adjusters of the KMSS(/M) mirror mount have been shortened to their minimum possible length in order to reduce the overall volume to 1.00" x 1.13" x 0.79" (25.4 mm x 28.7 mm x 20.1 mm). The length of the adjuster makes attaching a knob to the adjuster impossible, so a HKTS-5/64 hex key knob or 5/64" hex key must be used to adjust the mirror mount.

The angular displacement range of the mirror face is ±4° with an adjustment per revolution of 15 mrad/rev. This mount has two 8-32 (M4) threaded holes that enable horizontal or vertical mounting. A 4-40 tapped hole on the front face plate of the mount allows our MH12, MH25, and MH25T Mirror Holders (available below) to be attached.

We also offer the KMSR(/M) Compact Kinematic Mount for 1" rectangular optics.

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Figure G3.1  MH12 with KMS and Ø1/2" Mirror

The MH12 Mirror Holder can be used to mount Ø1/2" (12 mm) mirrors. The optic slides into a double-bored hole and is held in place with a nylon-tipped setscrew that can accommodate mirrors that are at least 0.10" (2.5 mm) thick. On the back of the MH12 is a 4-40 threaded boss that screws into the front plate of the KMS(/M) and KMSS(/M) mounts.

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Figure G4.1  MH25T with KMS and Ø1" Mirror

The MH25 and MH25T Mirror Holders are two-piece adapters that allow Ø1" mirrors to be mounted to the front plate of the Compact Kinematic Mounts featured on this page. Each holder features a 4-40 threaded boss that screws into the faceplate of the KMS(/M) or KMSS(/M) and comes with a retainer to secure the optic’s position within the holder.  The MH25 mounts mirrors from 2.5 mm (0.10") to 6.1 mm (0.24") thick, while the MH25T mounts mirrors from 6.0 mm (0.23") to 10.0 mm (0.39") thick. The SPW909 spanner wrench can be used to easily separate the holder to mount the mirror.