Compare Model Drawings, CAD & Specs Availability Price
BPH-1
Optical Post Holder, Slotted-Base, 1.0 in. Height, 0.5 in. Posts
$12.80
In Stock
 BPH-1 Optical Post Holder, Slotted-Base, 1.0 in. Height, 0.5 in. Posts
In Stock
 $12.80
BPH-1PK
Optical Post Holder Pack, Slotted-Base, 1.0 in. Height, 0.5 in. Posts, Qty 10
$108
In Stock
 BPH-1PK Optical Post Holder Pack, Slotted-Base, 1.0 in. Height, 0.5 in. Posts, Qty 10
In Stock
 $108
BPH-2
Optical Post Holder, Slotted-Base, 2.0 in. Height, 0.5 in. Posts
$12.80
In Stock
 BPH-2 Optical Post Holder, Slotted-Base, 2.0 in. Height, 0.5 in. Posts
In Stock
$12.80
BPH-2PK
Optical Post Holder Pack, Slotted-Base, 2 in. Height, 0.5 in. Posts, Qty 10
$116
In Stock
 BPH-2PK Optical Post Holder Pack, Slotted-Base, 2 in. Height, 0.5 in. Posts, Qty 10
In Stock
 $116
BPH-3
Optical Post Holder, Slotted-Base, 3.0 in. Height, 0.5 in. Posts
$13.60
In Stock
 BPH-3 Optical Post Holder, Slotted-Base, 3.0 in. Height, 0.5 in. Posts
In Stock
 $13.60
BPH-3PK
Optical Post Holder Pack, Slotted-Base, 3 in. Height, 0.5 in. Posts, Qty 10
$129
In Stock
 BPH-3PK Optical Post Holder Pack, Slotted-Base, 3 in. Height, 0.5 in. Posts, Qty 10
In Stock
 $129
BPH-4
Optical Post Holder, Slotted-Base, 4.0 in. Height, 0.5 in. Posts
$15.20
In Stock
 BPH-4 Optical Post Holder, Slotted-Base, 4.0 in. Height, 0.5 in. Posts
In Stock
$15.20
BPH-4PK
Optical Post Holder Pack, Slotted-Base, 4 in. Height, 0.5 in. Posts, Qty 10
$142
In Stock
 BPH-4PK Optical Post Holder Pack, Slotted-Base, 4 in. Height, 0.5 in. Posts, Qty 10
In Stock
 $142
BPH-1Z
Optical Post Holder, Slotted Magnetic Base, 1 in. Height, 0.5 in. Posts
$13.60
In Stock
 BPH-1Z Optical Post Holder, Slotted Magnetic Base, 1 in. Height, 0.5 in. Posts
In Stock
 $13.60
BPH-2Z
Optical Post Holder, Slotted Magnetic Base, 2 in. Height, 0.5 in. Posts
$15.20
In Stock
 BPH-2Z Optical Post Holder, Slotted Magnetic Base, 2 in. Height, 0.5 in. Posts
In Stock
 $15.20
BPH-3Z
Optical Post Holder, Slotted Magnetic Base, 3 in. Height, 0.5 in. Posts
$17.40
In Stock
 BPH-3Z Optical Post Holder, Slotted Magnetic Base, 3 in. Height, 0.5 in. Posts
In Stock
 $17.40
BPH-4Z
Optical Post Holder, Slotted Magnetic Base, 4 in. Height, 0.5 in. Posts
$19.20
In Stock
 BPH-4Z Optical Post Holder, Slotted Magnetic Base, 4 in. Height, 0.5 in. Posts
In Stock
 $19.20

For accessory pack, post and post holder combo pack, click here.

Specifications

  • Type
    Magnetic Base Post Holder, Slotted Base Post Holder
  • Material
    Cast Aluminum
  • Inside Diameter
    12.7 mm

Features

Non-Bridging Base Does Not Bend Mounting Surface

The flat bottom of the BPH's slotted base prevents the optical table mounting surface from the localized bending that typically occurs with fork-clamp mounted pedestal posts. In this way, stresses will not be induced into the skin of the optical table, making it more stable.

Integrated Slotted Base Design

The integrated slotted bases of these post holders features both angled and straight reference surfaces and allow edge-to-edge mounting of adjacent post holders. With the addition of the BPH-XB-5 Base Extender, the slotted bases can convert to a double-slotted base for more flexibility in mounting to optical surfaces.

Repeatable Angular Positioning

The top surface of the BPH post holder has a series of kinematic indentations which, when used with the BPH-C-5 Post Collar, provide repeatable rotational alignment and indexing at 45-degree increments.

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 BPH Series Slotted-Base 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.

Magnetic Base Versions and Multiple Size Options

Post holders are available with heights of 1.0 in, 2.0in., 3.0 in. and 4.0 in. Each is offered with or without magnetic bases that provide additional ease in alignment and mounting of optical components. Cost-saving pack of 10 post holders are also available in each size while collars (BPH-C-5) and base adapters (BPH-XB-5) are sold in packs of 5. Post and Post Holder Combo Packs including one post of each size and four sizes of SP-series stainless steel optical posts provide a great starting set or stock for an optics lab.

Save by Purchasing a Pack of 10!

A convenient, cost-saving pack of ten Post Holders with Post Packs or Post Holders is also offered at a discount for customers outfitting new laboratories or new research applications.

Resources

Technical Notes

Selection Guides

Technical Articles