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90° Flip Mounts


  • Compact, Easy-to-Operate Design
  • Mounts for Round or Rectangular Optics
  • Fully Accessible 0° to 90° Range

One Retaining Ring Included

TRF90

Mounts Ø1" Optics

TR05F90

Mounts Ø1/2" Optics

RFM90

Mounts Ø1" and up to
50 mm x 50 mm x 6 mm Optics

Application Idea

ER1.5 Rod Supports Three TRF90 Mounts on One Ø1/2" Post

Related Items


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Features

  • Flip Mounts for Ø1/2", Ø1", Ø2", or Rectangular Optics up to 50 mm x 50 mm x 6 mm
  • 0° to 90° Flip Mount Range
  • Post-Mountable

Thorlabs' 90° Flip Mounts feature a compact, versatile design that allows optics to be easily inserted or removed from the beam path. Our flip mounts for round optics feature a precision detent mechanism to provide a holding force at the 0° and 90° positions. Additionally, two nylon-tipped setscrews (0.05" hex) allow for the mount to be locked into place at any angle between 0° and 90°. Alternatively, the RFM90 flip mount holds Ø1" (25 mm) or rectangular optics using a clamping mechanism with two nylon-tipped setscrews. A pivot joint then allows the mount to be set at almost any angle between 0° and 90°.


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Posted Comments:
Poster:stockbr
Posted Date:2013-10-11 10:03:02.423
The link to the low stress retaining ring SM1LTRR on this page: http://www.thorlabs.com/newgrouppage9.cfm?objectgroup_id=1447&pn=TRF90#1447 is not accurate. It should link to: http://www.thorlabs.com/NewGroupPage9.cfm?ObjectGroup_ID=1535
Poster:jlow
Posted Date:2013-10-11 10:30:00.0
Response from Jeremy at Thorlabs: Thank you for bringing this to our attention. We will correct the link to the SM1LTRR.
Poster:acable
Posted Date:2007-11-26 22:02:12.0
The tapped hole in the bottom of this mount goes all the way thru to the rotation mechanis, this makes it possible to sieze the device if a longer than anticipated screw is used.
Poster:techsupport
Posted Date:2007-08-31 15:35:39.0
In general a rod lenght of 0.5" (13mm) per flip mount is required. Therefore in order to stack three flip mounts an extension rod with a lenght of 1.5" (38mm) is required, item number is ER1.5.
Poster:kpurchase
Posted Date:2007-08-31 14:12:56.0
What length ER post should I order to stack three flip mount filter holders?

Flip Mounts for Round Optics

Flip Mount Lock
Click for Details

A detent force locks the mount at either 0º or 90º. Additionally, the two locking setscrews allow the mount to be locked into place at any angle between 0º and 90º.
TRF90 Application
Click for Details
View Imperial Product List
Item #QtyDescription
Imperial Product List
BA21Mounting Base, 2" x 3" x 3/8"
TRF90190° Flip Mount for Ø1" Filters and Optics, 8-32 Tap
PH31Ø1/2" Post Holder, Spring-Loaded Hex-Locking Thumbscrew, L = 3"
TR31Ø1/2" Optical Post, SS, 8-32 Setscrew, 1/4"-20 Tap, L = 3"
SH25S03811/4"-20 Stainless Steel Cap Screw, 3/8" Long, Pack of 25
View Metric Product List
Item #QtyDescription
Metric Product List
BA2/M1Mounting Base, 50 mm x 75 mm x 10 mm
TRF90/M190° Flip Mount for Ø1" Filters and Optics, M4 Tap
PH75/M1Ø12.7 mm Post Holder, Spring-Loaded Hex-Locking Thumbscrew, L=75 mm
TR75/M1Ø12.7 mm Optical Post, SS, M4 Setscrew, M6 Tap, L = 75 mm
SH6MS101M6 x 1.0 Stainless Steel Cap Screw, 10 mm Long, Pack of 25

Flip Mount at the 90° Position
  • Mounts Ø1/2", Ø1", or Ø2" Optics
  • Detent Force at 0º and 90º, Lockable Across Entire Range
  • <25 µrad Angular Repeatability at 0° and 90°
  • Stackable Design
  • Post- and Rod-Mountable
  • One Retaining Ring Included

Thorlabs' Flip Mounts for Round Optics are designed to mount Ø1/2", Ø1", or Ø2" optics and can be post mounted individually (8-32 and M4-tapped models available). A detent mechanism holds the flip mount at either 0° or 90°. Additionally, the two nylon-tipped setscrews [0.05" (1.3 mm) hex] allow for the mount to be locked into place at any angle between 0° and 90°.

Multiple mounts can be stacked in series using Ø6 mm Cage Rods, as pictured above. Please note the flip mounts are not directly compatible with our cage systems. A flexure mechanism locks the mounts to the cage rod and is engaged by the setscrew on the side of the mount, which is activated with the included 0.05" (1.3 mm) hex key. Since the Ø1/2" and Ø1" mounts are 0.5" (13 mm) thick, one may be mounted per 0.5" length of Ø6 mm cage rod. For example, three Ø1/2" or Ø1" flip mounts may be joined in series on one ER1.5 cage rod. The Ø2” mount is 0.6” (15 mm) thick, and therefore, an ER2 cage rod must be used to secure three Ø2” flip mounts.

Each of these mounts includes a 0.05" (1.3 mm) hex key for adjusting setscrews, as well as a standard retaining ring to mount filters or other optics. The retaining rings can be easily adjusted using one of our spanner wrenches (sold separately), or removed and replaced with one of our stress-free retaining rings or plastic retaining ring (also sold separately). Note that using these special retaining rings changes the maximum thickness of the optic that can be held in this mount. Please refer to the table below for compatible retaining rings and corresponding maximum thicknesses.

Note that the threaded hole used to attach the post to the filter mount goes all the way through to the rotation mechanism. Be sure that no more than 0.2" (5 mm) of the screw on top of the post is threaded into the filter mount in order to prevent the binding of the rotation mechanism. Also note that the flat-head spring detent screw is factory set and not user adjustable.

Item # TR05F90(/M) TRF90(/M) TR2F90(/M)
Optic Size Ø1/2" (Ø12.5 mm) Ø1" (Ø25 mm) Ø2" (Ø50 mm)
Angular Repeatability <25 µrad
Retaining Ring, Included
(Max Optic Thickness)
SM05RR
[0.38" (9.7 mm)]
SM1RR
[0.37" (9.4 mm)]
SM2RR
[0.46" (11.7 mm)]
Compatible Accessories
Stress-Free Retaining Ring
(Max Optic Thickness)
SM05LTRR
[0.30" (7.6 mm)]
SM1LTRR
[0.29" (7.4 mm)]
SM2LTRR
[0.38" (9.6 mm)]
Plastic Retaining Ring
(Max Optic Thickness)
N/A SM1PRR [0.34" (8.6 mm)] N/A
Compatible Spanner Wrenches SPW603 or SPW801 SPW602, SPW606, or SPW801 SPW604 or SPW801
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available / Ships
TR05F90 Support Documentation
TR05F9090° Flip Mount for Ø1/2" Filters and Optics, 8-32 Tap
$82.00
Today
TRF90 Support Documentation
TRF9090° Flip Mount for Ø1" Filters and Optics, 8-32 Tap
$82.00
Lead Time
TR2F90 Support Documentation
TR2F9090° Flip Mount for Ø2" Filters and Optics, 8-32 Tap
$152.00
Today
+1 Qty Docs Part Number - Metric Price Available / Ships
TR05F90/M Support Documentation
TR05F90/M90° Flip Mount for Ø1/2" Filters and Optics, M4 Tap
$82.00
Today
TRF90/M Support Documentation
TRF90/M90° Flip Mount for Ø1" Filters and Optics, M4 Tap
$82.00
3-5 Days
TR2F90/M Support Documentation
TR2F90/M90° Flip Mount for Ø2" Filters and Optics, M4 Tap
$152.00
Today

Flip Mount for Ø1" and Rectangular Optics

Rectangular Filter Flip Mount
Click for Details

The pivot joint on the RFM90 allows the mount to be set at almost any angle between 0°  and 90°.
  • Mounts Ø1" (25 mm) Optics
  • Mounts Rectangular Optics from 24 mm x 10 mm up to 50 mm x 50 mm
  • Clamping Mechanism Accepts Optics up to 6 mm Thick
  • Pivot Joint Provides Full 0° to 90° Range
  • <25 µrad Angular Repeatability at 0°
  • 1/4"-20 (M6) and 8-32 (M4) Counterbores for Post Mounting

The RMF90 Flip Mount provides stable mounting for Ø1” round optics or rectangular optics from 24 mm x 10 mm to 50 mm x 50 mm that are up to 6 mm thick. To protect against scratches, the optic is held in place by a clamp with two nylon-tipped setscrews. If a stronger clamping force is desired, the setscrews can be backed out so that the optic is gripped directly by the aluminum arms of the clamp. The setscrews and clamp actuation screw accept a 5/64” (2 mm) hex key.

A finely tuned pivot joint* allows the mount to be positioned at almost any angle between 0° and 90°. Magnets at the 0° and 90° positions provide extra holding force. Note that the magnet at the 0° position will pull the mount closed at very small angles. The RFM90 includes one 1/4"-20 (M6) and one 8-32 (M4) counterbore for post mounting.

*The pivot joint consists of a screw and two ball contacts that are factory set and should not be adjusted by the user.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available / Ships
RFM90 Support Documentation
RFM90Customer Inspired!90° Flip Mount for Ø1" (Ø25 mm) and Rectangular Filters and Optics
$81.00
Today
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