NRC Newport Post Holder VPH-4

Newport VPH-4 Standard Optical Post Holder

The Newport VPH-4 is a 4-inch tall standard optical post holder designed to provide secure and precise positioning for optical components. It accommodates 0.5-inch (12.7 mm) diameter posts and features a 1/4-20 threaded hole at its base for versatile mounting options.

Key Features

• Spring-Loaded Brake Shoe Design: Ensures constant friction on the post, preventing slippage even when the thumbscrew is loosened. This allows for easy, one-handed adjustments of optical mounts.
• Enhanced Stability: Utilizes a two-line contact mechanism, achieved through precision machining, to provide greater stability compared to traditional circular contact surfaces.
• Versatile Mounting: Equipped with a 1/4-20 threaded hole at the base, allowing direct threading into optical tables or mounting with pedestal base adapters or slotted bases.

Specifications

• Height: 4.0 inches (101.6 mm)
• Compatible Post Diameter: 0.5 inches (12.7 mm)
• Base Thread: 1/4-20

The VPH-4’s innovative design and robust construction make it an essential component for precise and reliable optical setups.