Swivel Clamp optical post holders provide a continuously adjustable height to standard optical rods with the addition of a spring-loaded, break-shoe design to prevent slipping while making adjustments. The swivel base clamp and magnetic base make alignment quick and easy.
- Swivel Clamp for simple alignment to holes in the optical table
- Magnetic base provides holding power during initial alignment
- Brake-shoe clamp for no-slip operation See All Features
| Compare | Description | Drawings, CAD & Specs | Avail. | Price | ||
|---|---|---|---|---|---|---|
![]() | VPH-1.5SC Swivel Clamp Optical Post HoldersOptical Post Holder, Swivel Base, 1.5 in. Height, 0.5 in. Posts | |||||
![]() | VPH-1SC Swivel Clamp Optical Post HoldersOptical Post Holder, Swivel Base, 1.0 in. Height, 0.5 in. Posts | |||||
![]() | VPH-2SC Swivel Clamp Optical Post HoldersOptical Post Holder, Swivel Base, 2.0 in. Height, 0.5 in. Posts | |||||
![]() | VPH-3SC Swivel Clamp Optical Post HoldersOptical Post Holder, Swivel Base, 3.0 in. Height, 0.5 in. Posts | |||||
![]() | VPH-4SC Swivel Clamp Optical Post HoldersOptical Post Holder, Swivel Base, 4.0 in. Height, 0.5 in. Posts | |||||
![]() | VPH-6SC Swivel Clamp Optical Post HoldersOptical Post Holder, Swivel Base, 6.0 in. Height, 0.5 in. Posts |
Features
Brake-shoe Design Offers Grip for Easy Adjusting
VPH Series optical post holders feature a unique, spring-loaded, brake shoe design to apply constant friction to optical posts during height adjustments for no-slip operation, before locking in place with its thumbscrew. Unlike typical spring-loaded post holders, the VPH Series holds posts in place even if the thumbscrew is partially or completely loosened. Moreover, the VPH Series' holding force is greater than typical spring-loaded screws. The result is easier, faster, and more reliable alignment of an optical experiment.
Magnet in Base for Rough Alignment
The base of the swivel clamp incorporates a ring magnet, which allows for rough alignment prior to securing with the swivel clamp. The magnet is large enough to allow the post to pass through, so the post can rest directly on the optical table for maximum height adjustment.
Two-Line Contact for Greater Stability
By using precision machining techniques to remove a small portion of the interior surface opposite the set screw of our VPH Series optical post holder, two lines of contact are created with a post when it is pushed in by the screw. These two lines of contact provide greater stability compared to a post held in place against another circular surface.















