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Kinematic Grating Mount Adapters for 1" Mirror Mounts


  • Compatible with all Ø1" Mirror Mounts
  • Accommodates Gratings up to 60 mm Tall
  • Spring-Loaded Clamping Design
  • Top-Located Locking Setscrew

KGM60

KGM40

Front

Back

KGM20

KGM40 Grating Adapter,
POLARIS-K1 Mount, and
GR25-030 Grating

Related Items


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Kinematic Mounting Mechanism

Features

  • Mount Gratings or Rectangular Mirrors in Ø1" Mirror Mounts
  • Stable 3-Point Kinematic Mounting
  • Three Models Accommodate Optics up to 60 mm Tall

This simple, versatile family of anodized aluminum grating adapters is compatible with Thorlabs' Ø1", front-loading, unthreaded mirror mounts, including the POLARIS-K1 ultra-stable kinematic mirror mount. Rectangular optics up to 60 mm tall may be mounted in the appropriate model (see table below; please note that for optics exactly 20 mm tall the KGM40 must be used.

Gratings and rectangular mirrors can be accommodated by simply sliding the upper and lower clamps on the adapter to match the desired optic height. These clamps slide in machined grooves and are tightened into place with two M3 screws located on the back side of the mount (see photo below). The 3-point, kinematic mounting mechanism consists of two bottom lines of contact and a top flat-spring contact as shown in the photo to the right. An additional nylon-tipped, locking setscrew located on the top clamp provides added holding force.

Grating Compatibility
Item # Grating Height Grating Width Grating Thicknessa
KGM20 <20 mm 12 mm (Min) 4 - 8 mm
KGM40 20 - 40 mm 18 mm (Min) 5 - 10 mm
KGM60 40 - 60 mm 32 mm (Min) 6 - 12 mm
  • Maximum thickness values are recommended. Thicker optics may not have sufficient contact with the mount to remain stable.
Back Side of Kinematic Grating Mount Adapter
Back Side of Adapter

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Posted Comments:
Poster:doron.azoury
Posted Date:2013-09-10 10:22:46.397
Hi, i couldn't find information regarding the mount material. Is it vacuum (10-7mbar) compatible? Thanks.
Poster:cdaly
Posted Date:2013-09-11 16:59:00.0
Response from Chris at Thorlabs: Thank you for using our feedback tool. The material of the KGM series of grating mounts is black anodized aluminum, which is not a material which we would say is vacuum compatible. We have stripped the anodization in the past to provide a custom vacuum compatible version. I will contact you to discuss this further.
Poster:tcohen
Posted Date:2012-10-07 10:30:00.0
Response from Tim at Thorlabs: Thank you for contacting us! We would recommend using the KGM40 for a substrate exactly 20mm tall.
Poster:rwhi
Posted Date:2012-10-05 16:37:06.0
Hi, would you recommend the KGM20 or KGM40 for a substrate exactly 20mm tall?
Poster:jjurado
Posted Date:2011-03-23 15:13:00.0
Response from Javier at Thorlabs to jahan.dawlaty: Thank you very much for your feedback! I will share your comments with our mechanics department and keep you informed of all the details regarding this product.
Poster:jahan.dawlaty
Posted Date:2011-03-22 17:47:30.0
It would be nice if this product (Kinematic Grating Mount Adapters) also allowed for grating rotation. Grating rotation (along with tip and tilt) is necessary for proper alignment.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available / Ships
KGM20 Support Documentation
KGM20Kinematic Grating Mount Adapter (Grating Height <20 mm)
$109.00
3-5 Days
KGM40 Support Documentation
KGM40Kinematic Grating Mount Adapter (Grating Height: 20-40 mm)
$132.00
Today
KGM60 Support Documentation
KGM60Kinematic Grating Mount Adapter (Grating Height: 40-60 mm)
$164.00
Today
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