Create an Account  |   Log In

View All »Matching Part Numbers


Your Shopping Cart is Empty
         

Optic Spacers


  • Space Optics within SM05 or SM1 Lens Tubes
  • Lengths Ranging from 0.4 mm to 10 mm
  • Brass or Plastic Spacers Available

SM1S01

Ø1", 0.4 mm Long, Plastic

SM1S6M

Ø1", 6 mm Long, Brass

SM05S1M

Ø1/2", 1 mm Long, Brass

SM05L30C Lens Tube Shown with an SM05S4M Brass Spacer between a Laser Line Filter and a Linear Polarizer

Related Items


Please Wait
Click to Enlarge
Diagram of an Optic Spacer

Features

  • Place Multiple Optics in Series at Well Defined Distances
  • Can Be Used to Mount Thin Optics
  • Minimal Wall Thickness Prevents Obstruction of Clear Aperture
  • Made from Brass or Plastic (Acetate)

These optic spacers are used to separate optics within an SM05 or SM1 lens tube. As an alternative to using a plastic retaining ring, a spacer may be used to prevent direct contact between an anodized aluminum retaining ring and the optic's surface. 

Our brass spacers are also ideal for securing thin round optics into optic mounts that use setscrews, such as our Fixed Optical Mounts. They provide a rigid, wide surface against which the setscrew can be tightened without causing damage to the optic.


Please Give Us Your Feedback
 
Email Feedback On
(Optional)
Contact Me:
Your email address will NOT be displayed.
 
 
Please type the following key into the field to submit this form:
Click Here if you can not read the security code.
This code is to prevent automated spamming of our site
Thank you for your understanding.
  
 
Would this product be useful to you?   Little Use  1234Very Useful

Enter Comments Below:
 
Characters remaining  8000   
Posted Comments:
Poster:bmills
Posted Date:2016-05-26 15:33:16.257
Do you plan on selling SM05 (1/2 inch) optic spacers (brass)? Thank you.
Poster:besembeson
Posted Date:2016-05-26 04:40:36.0
Response from Bweh at Thorlabs USA: Yes we are working on these. I will contact you to get your requirements.
Poster:doug.mcgregor
Posted Date:2016-02-14 16:00:24.717
Are there spacers available for SM05? Something as thin as the SM1S01 would be very useful. Hand-sanding SM05RR retaining rings is a painful substitute.
Poster:besembeson
Posted Date:2016-03-03 12:07:27.0
Response from Bweh at Thorlabs USA: We don't have these as stock items for now, but can provide these to you as a special item. I will contact you.
Poster:ronny
Posted Date:2013-03-04 11:18:39.59
What about the same spacers for SM2 ???
Poster:cdaly
Posted Date:2013-03-06 18:35:00.0
Response from Chris at Thorlabs: Thank you for using our web feedback. At the moment we do not offer version of these spacers for our SM2 series of lens tubes, though there have been some internal discussion about possibly of introducing them. I will log your request within our forums to help support this idea. Thank you very much for your input.
Poster:
Posted Date:2013-02-21 21:21:08.187
Sometimes it would be useful to make small adjustments to the length of a tube. Some .5mm thick shims with an ID of 1.04" and an OD of 1.2" could come in very handy.
Poster:cdaly
Posted Date:2013-02-27 16:27:00.0
Response from Chris at Thorlabs: Thank you for using our feedback tool. Typically, for an application which requires a variable length lens tube, we would recommend using either the SM1V05 or SM1V10, which can be threaded into another lens tube. The overall length of the two tubes can then be adjusted by threading this in or out by a given amount. When the appropriate length is obtained, the locking nut would then be tightened down against the first lens tube, securing the length.
Poster:sharrell
Posted Date:2012-01-23 14:34:00.0
A Reply from Sean at Thorlabs: Thank you for your feedback! We have added the inner diameter of the spacers, Ø0.91", as a bullet on the overview tab. If you have any further questions or suggestions, please don't hesitate to leave additional feedback or email techsupport@thorabs.com.
Poster:
Posted Date:2012-01-22 16:44:21.0
Would be nice to have the inner diameter on the Overview tab.
Poster:bdada
Posted Date:2011-04-12 17:39:00.0
Response from Buki at Thorlabs to Johannes: Thank you for notifying us of an inaccuracy on our website caused by a rounding error. The correct thickness specification is 0.015" and our ESD and Web drawings will be changed to reflect this.
Poster:johannes.piel
Posted Date:2011-04-12 16:00:22.0
the presentations says: 0.015" (0,4mm), but the drawing (autocad.pdf) says 0,02" (0.3mm). But 0.015"=0.381mm and 0.02"=0.508mm. Something is wrong here...

Ø1/2" Brass Optic Spacers


Click to Enlarge
SM05S3M brass optic spacer used to mount a thin NE501B ND filter on a KM05 kinematic mount.
  • Spacers Range from 1 mm to 10 mm in Length
  • Inner Diameter of 0.43" (11.0 mm) and Outer Diameter of 0.50" (12.7 mm)
  • Sold Individually
  • Made from Brass

These Ø1/2" brass optic spacers are used to separate optics within an SM05 lens tube. Their lengths range from 1 mm to 10 mm in 1 mm intervals, which allows optics to be spaced at varying intervals. In addition, their rounded edges help to prevent damage to optics when mounted. When using these spacers with convex lenses facing each other, use a spacer long enough to separate the lenses to prevent damage resulting from contact.

These spacers can be used with our KM05(/M) Ø1/2" Kinematic Mirror Mount to provide support when mounting thin filters or optics. Spacers that are at least 2 mm long are ideal for securing thin, round optics into Ø1/2" optic mounts with setscrews. They provide a rigid, wide surface against which the setscrew can be tightened without causing damage to the optic.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available / Ships
SM05S1M Support Documentation
SM05S1MCustomer Inspired!Ø1/2" Brass Optic Spacer, 1 mm in Length
$6.75
Today
SM05S2M Support Documentation
SM05S2MCustomer Inspired!Ø1/2" Brass Optic Spacer, 2 mm in Length
$6.75
Today
SM05S3M Support Documentation
SM05S3MCustomer Inspired!Ø1/2" Brass Optic Spacer, 3 mm in Length
$6.75
Today
SM05S4M Support Documentation
SM05S4MCustomer Inspired!Ø1/2" Brass Optic Spacer, 4 mm in Length
$7.00
Today
SM05S5M Support Documentation
SM05S5MCustomer Inspired!Ø1/2" Brass Optic Spacer, 5 mm in Length
$7.00
Today
SM05S6M Support Documentation
SM05S6MCustomer Inspired!Ø1/2" Brass Optic Spacer, 6 mm in Length
$7.50
Today
SM05S7M Support Documentation
SM05S7MCustomer Inspired!Ø1/2" Brass Optic Spacer, 7 mm in Length
$7.50
Today
SM05S8M Support Documentation
SM05S8MCustomer Inspired!Ø1/2" Brass Optic Spacer, 8 mm in Length
$7.75
Today
SM05S9M Support Documentation
SM05S9MCustomer Inspired!Ø1/2" Brass Optic Spacer, 9 mm in Length
$7.75
Today
SM05S10M Support Documentation
SM05S10MCustomer Inspired!Ø1/2" Brass Optic Spacer, 10 mm in Length
$7.75
Today

Ø1" Plastic Optic Spacers

  • Each Spacer is 0.015" (0.4 mm) in Length
  • Inner Diameter of 0.91" (23.0 mm) and Outer Diameter of 1.00" (25.4 mm)
  • Sold in Packs of 10
  • Made from Plastic (Acetate)

Item # SM1S01 consists of ten 0.015" (0.4 mm) long optic spacers, each with a diameter of 1". These spacers can be used to closely separate optics within an SM1 lens tube. Their consistent length results in equally spaced optics. When using these spacers with convex lenses facing each other, use enough spacers to separate the lenses to prevent damage resulting from contact.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available / Ships
SM1S01 Support Documentation
SM1S01Customer Inspired!Ø1" Plastic Optic Spacer, 0.015" (0.4 mm) in Length, 10 Pack
$5.25
Today

Ø1" Brass Optic Spacers

KCP05 Centering Plate Application 
Click to Enlarge
SM1S6M optic spacer used to mount an EBP1 economy beamsplitter in a KM100 mirror mount.
  • Spacers Range from 1 mm to 10 mm in Length
  • Inner Diameter of 0.91" (23.0 mm) and Outer Diameter of 1.00" (25.4 mm)
  • Sold Individually
  • Made from Brass

These Ø1" brass optic spacers are used to separate optics within an SM1 lens tube. Their lengths range from 1 mm to 10 mm in 1 mm intervals, which allows optics to be spaced at varying intervals. When using these spacers with convex lenses facing each other, use a spacer long enough to separate the lenses to prevent damage resulting from contact.

The versions that are 2 mm or longer are ideal for securing thin round optics into optic mounts that use setscrews. They provide a rigid, wide surface against which the setscrew can be tightened without causing damage to the optic, and their minimal wall thickness preserves a large aperture.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available / Ships
SM1S1M Support Documentation
SM1S1MØ1" Brass Optic Spacer, 1 mm in Length
$7.71
Today
SM1S2M Support Documentation
SM1S2MØ1" Brass Optic Spacer, 2 mm in Length
$7.84
Today
SM1S3M Support Documentation
SM1S3MØ1" Brass Optic Spacer, 3 mm in Length
$8.00
Today
SM1S4M Support Documentation
SM1S4MØ1" Brass Optic Spacer, 4 mm in Length
$8.13
Today
SM1S5M Support Documentation
SM1S5MØ1" Brass Optic Spacer, 5 mm in Length
$8.29
Today
SM1S6M Support Documentation
SM1S6MØ1" Brass Optic Spacer, 6 mm in Length
$8.42
Today
SM1S7M Support Documentation
SM1S7MØ1" Brass Optic Spacer, 7 mm in Length
$8.55
Today
SM1S8M Support Documentation
SM1S8MØ1" Brass Optic Spacer, 8 mm in Length
$8.71
Today
SM1S9M Support Documentation
SM1S9MØ1" Brass Optic Spacer, 9 mm in Length
$8.87
Today
SM1S10M Support Documentation
SM1S10MØ1" Brass Optic Spacer, 10 mm in Length
$9.00
Today
Log In  |   My Account  |   Contact Us  |   Careers  |   Privacy Policy  |   Home  |   FAQ  |   Site Index
Regional Websites:East Coast US | West Coast US | Asia | China | Japan
Copyright 1999-2016 Thorlabs, Inc.
Sales: 1-973-300-3000
Technical Support: 1-973-300-3000


High Quality Thorlabs Logo 1000px:Save this Image