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Kinematic Rectangular Optic Mounts


  • Mount Rectangular Optics from 1/2" to 2" Tall
  • Versions with Adjustable Optic Height Offered

Holds Optics up to
1.3" (33.0 mm) Tall  

KM05S

Right-Handed Mount for
1/2" (12.7 mm) Tall Optics

KM100CL

Adjustable Left-Handed Mount
(Lens Sold Separately)

KM200S

Right-Handed Mount for
2" (50.8 mm) Tall Optics

KM100SL

Left-Handed Mount for
1" (25.4 mm) Tall Optics
(Mirror Sold Separately)

Related Items


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Features

  • Two Designs Available:
    • Fixed Optic Height Mounts: Accept 1/2", 1", or 2" Tall Square or Rectangular Optics
    • Adjustable Optic Height Mounts: Accept Square or Rectangular Optics up to 1.3" (33.0 mm) Tall
  • Right- and Left-Handed Versions Available
  • Fabricated from Black Anodized Aluminum
  • Compatible with our Ø1/2" Posts

Thorlabs offers both fixed and adjustable optic height kinematic mounts for square or rectangular optics, such as our square metallic or dielectric mirrors and diffraction gratings. The fixed mounts are designed to hold 1/2", 1", or 2" tall rectangular optics that are at least 3.0 mm (0.12") thick. Each mount is available in left- or right-handed configurations. Our adjustable optic height mounts are designed to accept rectangular optics up to 1.3" (33.0 mm) tall, such as our cylindrical lenses. Optics are held in place with rubber-padded arms that can be locked with a 0.05" hex key. These mounts are also available in either left- or right-handed configurations.

Alternatively, Thorlabs also offers a 90° flip mount for rectangular optics.


Posted Comments:
yoav.romach  (posted 2019-02-10 23:32:40.903)
Non of these mounts is useful for the rectangular Dichroic Mirror that you are selling. The KM100S only supports optics that is 3mm thick, and while the KM100C does support it, it is not a good product... The screws are on the same side, so the top part never properly holds down the optics, and it always ends up applying pressure on it and distorts the beam... Please create a suitable kinematic mount for the 1mm rectangular optic that you are selling!
llamb  (posted 2019-02-12 08:54:29.0)
Thank you for your feedback. I am sorry to hear the KM100C is not suitable for your application, and I have brought this up to our internal product forum for revision/improvement.
paolo.maioli  (posted 2018-07-06 14:52:06.96)
Can I use a KM100S mount for a 1-mm thick plate beamsplitter (e.g. BSS11R) or is it designed only for thicker optics?
YLohia  (posted 2018-07-06 10:44:27.0)
Unfortunately, the minimum optic thickness for the KM100S is 3mm due to the locking setscrew mechanism of clamping down optics. You could look into the KM100C on the same page for your 1mm thick optic.
franxm  (posted 2014-03-05 16:12:21.863)
Can you provide a Left-Handed KM200S? Thanks, Fran
cdaly  (posted 2014-03-07 01:11:34.0)
Response from Chris at Thorlabs: Thank you for your feedback. Yes, we can offer a left handed version as a custom item. We will contact you directly in order to have a quote created.
jlow  (posted 2012-11-12 16:33:35.387)
Response from Jeremy at Thorlabs: Thank you very much for your feedback. You can find the 0.05" hex key at http://www.thorlabs.com/newgrouppage9.cfm?objectgroup_id=1407&pn=HK050.
user  (posted 2012-11-09 09:15:07.28)
You supply hex drivers for the standard sizes, e.g. for the KS3 adjustment, but not for the rare 0.05" hex adjustment of the KM100C. This could be improved, thanks
jlow  (posted 2012-10-08 16:52:00.0)
Response from Jeremy at Thorlabs: You can accommodate taller optics with the KM100C by either replacing the posts or putting additional posts on it. The posts that came with the KM100C are our ER series posts (1.5" long, ER1.5). You can find the ER series posts at http://www.thorlabs.com/NewGroupPage9.cfm?ObjectGroup_ID=4125.
cslabau  (posted 2012-10-08 15:07:24.0)
My hard-copy catalog shows this mount with 70mm posts to accept 50.8mm optics. Can I get an extended post length?
user  (posted 2012-05-15 07:59:02.0)
Do the set screws on the KM100C take a standard hex key to adjust and if so what size?
klee  (posted 2009-10-13 16:05:32.0)
A response from Ken at Thorlabs to cnadav: It is a #4-40 setscrew, 1/16" long.
cnadav  (posted 2009-10-13 14:00:37.0)
i lost a set screw of the sliding clamp in th KM100C. i want to replace it but i dont know the dimentions of the setscrew that i lost. could you help

Kinematic Rectangular Optic Mounts, Fixed Optic Height


Click for Details

Optics are Secured with a Nylon-Tipped 5/64" (2 mm) Hex Setscrew and Flexure Clamp Mechanism
  • Hold 1/2", 1", or 2" Tall Square or Rectangular Optics
  • Mount Optics Greater than 3.0 mm (0.12") Thick
  • Tip/Tilt Adjustment Range:
    • 1/2" and 1" Optic Mounts: ±4°
    • 2" Optic Mounts: ±3°
  • Compatible with Our Ø1/2" Posts

These fixed-height, two-adjuster kinematic mounts hold 1/2", 1", or 2" tall square or rectangular optics that are at least 3.0 mm (0.12") thick. We recommend these mounts for holding our square metallic or dielectric mirrors and diffraction gratings.

The optic is secured in each mount with a nylon-tipped 5/64" (2 mm) hex setscrew and a flexure clamp mechanism, as shown in the photo to the right. The setscrew presses the flexure clamp against the edge of the optic to create an area of contact, holding the optic securely in the mount.

1/2" Versions
The KM05S(/M) and KM05SL(/M) are right- and left-handed mounts, respectively, for 1/2" rectangular optics. Each mount has two 8-32 (M4) tapped holes for mounting to our Ø1/2" Posts. These mounts do not come with adjuster knobs, making them ideal for use in confined spaces. The 3/16"-100 adjusters are actuated with a 5/64" (2 mm) hex key, such as our HKTS-5/64 Hex Key Thumbscrews (sold below). An optional accessory, the LN19100 bronze locking nut, is available to lock the 3/16"-100 adjusters once the desired position is achieved.

1" and 2" Versions
The KM100S and KM200S rectangular optic mounts are right handed, while the KM100SL and KM200SL are left handed. They feature two 1/4"-80 adjusters and include one 8-32 cap screw and one M4 cap screw for mounting to our Ø1/2" Posts. An optional accessory, the LN2580 bronze locking nut, is available to lock the 1/4"-80 adjusters once the desired position is reached.

Item #
(Right-Handed)
Item #
(Left-Handed)
Optic Height Max
Optic Length
Compatible Optic
Edge Thicknessesa
Tip/Tilt
Range
Adjuster
Threads
Resolution
KM05S(/M) KM05SL(/M) 1/2" (12.7 mm)b 1.0" (25.4 mm) 0.118" - 0.500" (3.00 mm - 12.7 mm) ±4° 3/16"-100 13 mrad (0.75°) per Revolution
KM100S KM100SL 1" (25.4 mm)c 2.0" (50.8 mm) 0.118" - 0.500" (3.00 mm - 12.7 mm) ±4° 1/4"-80 8 mrad (0.5°) per Revolution
KM200S KM200SL 2" (50.8 mm)d 3.0" (76.2 mm) 0.118" - 0.500" (3.00 mm - 12.7 mm) ±3° 1/4"-80 5 mrad (0.3°) per Revolution
  • Mounting an optic with an edge thickness outside of this range will affect the stability and performance of the mount.
  • KM05S(/M) and KM05SL(/M) mounts can also accommodate 12.5 mm tall rectangular optics.
  • KM100S(L) mounts can also accommodate 25 mm tall rectangular optics.
  • KM200S(L) mounts can also accommodate 50 mm tall rectangular optics.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available
KM05S Support Documentation
KM05SKinematic Mount for 1/2" (12.7 mm) Tall Rectangular Optics, Right Handed, 8-32 Tap
$70.66
Today
KM05SL Support Documentation
KM05SLKinematic Mount for 1/2" (12.7 mm) Tall Rectangular Optics, Left Handed, 8-32 Tap
$70.66
Today
+1 Qty Docs Part Number - Universal Price Available
KM100S Support Documentation
KM100SKinematic Mount for 1" (25.4 mm) Tall Rectangular Optics, Right Handed
$83.00
Today
KM100SL Support Documentation
KM100SLCustomer Inspired! Kinematic Mount for 1" (25.4 mm) Tall Rectangular Optics, Left Handed
$83.00
Today
KM200S Support Documentation
KM200SKinematic Mount for 2" (50.8 mm) Tall Rectangular Optics, Right Handed
$142.88
Today
KM200SL Support Documentation
KM200SLCustomer Inspired! Kinematic Mount for 2" (50.8 mm) Tall Rectangular Optics, Left Handed
$142.88
Today
+1 Qty Docs Part Number - Metric Price Available
KM05S/M Support Documentation
KM05S/MKinematic Mount for 1/2" (12.7 mm) Tall Rectangular Optics, Right Handed, M4 Tap
$70.66
Today
KM05SL/M Support Documentation
KM05SL/MKinematic Mount for 1/2" (12.7 mm) Tall Rectangular Optics, Left Handed, M4 Tap
$70.66
Today

Kinematic Rectangular Optic Mounts, Adjustable Optic Height

KM100C Application
Click to Enlarge
View Product List
Item #QtyDescription
KM100C1Kinematic Mount for up to 1.3" (33 mm) Tall Rectangular Optics, Right Handed
ER1.52Cage Assembly Rod, 1.5" Long, Ø6 mm
AYL5040-A1f=40.00 mm, L=50.0 mm, H=50.0 mm, S-LAH64 Plano-Convex Acylindrical Lens, AR Coating: 350-700 nm
To accommodate a 50.0 mm Tall Cylindrical Lens, additional ER1.5 Rods have been threaded onto those provided with the KM100C.
  • Adjustable Clamping Arm Capable of Mounting Optics up to 1.3" (33.0 mm) Tall
  • Mounts Optics up to 65 mm Wide
  • Tip/Tilt Adjustment Range of ±4°
  • Two #8 (M4) Counterbores at 90° in Back Plate Enable Post Mounting
  • Right- and Left-Handed Configurations Available
  • Rubber Pads Increase Contact Area with Optic

The KM100C(L) adjustable-height mounts are ideal for mounting cylindrical lenses of various sizes. They are available in right-handed (Item # KM100C) or left-handed (Item # KM100CL) configurations. Optics are securely held in place by two rubber-padded arms that can be locked with a 0.05" hex key. The length of the rubber pads is 0.79" (20.0 mm). For the KM100C, we recommend mounting optics with an edge thickness no greater than 0.500" (12.7 mm). For the KM100CL, we recommend mounting optics with an edge thickness no greater than 0.300" (7.62 mm). Mounting optics greater than these maximum values will affect the stability and performance of the mounts.

The mount accepts cylindrical optics up to 1.3" (33.0 mm) tall. The adjustable clamping arm is mounted to two preinstalled ER1.5 rods. To accommodate taller optics, additional ER rods (sold separately) can be screwed onto those included with the mount (as seen in the photo to the right). It also has two #8 (M4) counterbores for mounting to our Ø1/2" Posts.

The kinematic tip/tilt adjustments, driven by two 1/4"-80 adjusters, simplify positioning. An optional accessory, the LN2580 bronze locking nut, is available to lock the adjusters once the desired position is reached.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
KM100C Support Documentation
KM100CKinematic Mount for up to 1.3" (33 mm) Tall Rectangular Optics, Right Handed
$99.55
Today
KM100CL Support Documentation
KM100CLKinematic Mount for up to 1.3" (33 mm) Tall Rectangular Optics, Left Handed
$99.55
Today

5/64" Hex Key Adjusters

POLARIS-K12AH with HKTS-5/64 Adjuster
Click for Details

POLARIS-K1-2AH with HKTS-5/64 Adjuster
  • For Convenient Adjustment of 5/64" and 2 mm Hex-Driven Actuators
  • Red Anodized Adjustment Knob with Engraved Hex Size
  • Replaceable Hex Tip
  • Sold in Packages of 4

These 5/64" Hex Key Adjuster Thumbscrews allow for quick adjustment of many 5/64" and 2 mm hex-driven actuators (or standard actuators with the knobs removed). These temporary knobs can be left in the screw's hex socket between adjustments for convenience (see photo to the right). An 8-32 setscrew (5/64" hex) secures the replaceable hex bit, which can be reversed if the tip is stripped. Contact Tech Support to order replacement hex key bits.

We offer hex key thumbscrews in sizes from 0.050" to 3/16" and 2 mm to 5 mm.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
HKTS-5/64 Support Documentation
HKTS-5/64Customer Inspired! 5/64" (2 mm) Hex Key Thumbscrew, 4 Pack
$24.40
Today
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