Optics Mount with Quick Release Mounting Carriage

8-32 (M4) Tap for Post Mounting
SM1-Threaded Mounting Carriage for Ø1" Optics
Magnetically Coupled Mounting Carriage

KB1P

(Post Not Included)

KB1B

KB1F

Application Idea

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Overview
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Parameter	Value
Max Optic Thickness	0.35" (8.9 mm)
Repeatability^a	1 µm

The repeatability specification (1 µm) indicates that the X, Y, and Z position of the mount will not vary by more than 1 µm after being removed and replaced.

Features

SM1-Threaded (1.035"-40) Mounting Carriage for Ø1" Optics
One Retaining Ring (SM1RR) Included
Magnetically Coupled Removable Mounting Carriage
8-32 (M4) Tapped Hole on Back Plate for Post Mounting
Ideal for Use with Lenses, Filters, Apertures, and Other Optics

The KB1P mount has back plate to which a removable mounting carriage can be magnetically coupled. This mount is designed for applications that require a Ø1" optical element, like a lens, to be periodically inserted and removed for an optical setup with a high degree of precision. The magnetically coupled mounting carriage eliminates the need to align the optic when it is reinserted into the setup. For stability, precision, and repeatability, the mounting carriage contacts the back plate at three points. Each point of contact is a ball bearing on the mounting carriage resting in the groove formed by two parallel steel pins. The coupling force is provided by pairs of rare earth magnets.

Posted Comments:

Nick Cox (posted 2023-02-24 15:42:19.0)

What is the holding force of the magnets? Your other kinematic baseplates (KB2x2, KB3x3) have 3 and 6lbs holding force.

jdelia (posted 2023-03-08 04:50:54.0)

Thank you for contacting Thorlabs. We tested the holding force on the KB1- series to be approximately 2.14 lbs.

mastron (posted 2018-01-30 15:20:16.967)

Would it be possible to make a KB1F front plate that is tapped for SM1 retaining ring as normal, but untapped for the last 4 mm to the bottom lip that holds the optic?

nbayconich (posted 2018-02-12 01:15:12.0)

Thank you for contacting Thorlabs. We can possibly provide this as a custom option. I will reach out to you directly with more information about our custom capabilities.

adrian.solyom (posted 2017-04-18 18:09:56.487)

What is the angular repeatability of these mounts? eg when using lenses in a removable telescope.

nbayconich (posted 2017-06-05 04:23:12.0)

Thank you for contacting Thorlabs. The angular repeatability of the KB1P mount for the min, max and average is Min 1.33 µrad, Mean 20.58 µrad, and Max 72.14 µrad. A Techsupport representative will contact you directly.