Damped Optical Post, Gear Rack, Mounting Base, 14 in. Height, 1.5 in. Diameter
Model: 75
Product Series Overview
1.5 in. Optical Support RodsThe 75 Damped Rod is the most sophisticated rod available for critical applications where acoustical and vibrational forces are a concern. These rods incorporate cylindrical masses constrained by damping layers, concentrated in the upper portion of the rod where they are most effective in dissipating vibrational energy. This construction is the result of extensive computer modeling, dynamic testing and structural analysis. Newport's patented internal damping system provides unmatched vibrational immunity. Compared to the best alternative designs, Newport damped rods exhibit 60% higher resonant frequency, 100% faster vibration decay and 160% better peak compliance. These 14.0 in. (355.6 mm) long rods mount to tables and breadboards with four bolts through a special ring base and have with a nylon gear rack set into the rod for rack-and-pinion control over component elevation.
1.5 inch Diameter Steel Tubing Construction
Newport optical support rods are made of 1.5 in.(38.1 mm) diameter steel tubing, whose material properties allow for greater dynamic rigidity than aluminum designs, as well as thermal stability. The optical support rods are made round to < 1/1000 of an in. (12 µm) for precise, reproducible mating of rod-mounted components. The matte finish of the rods provides a low-reflectivity surface that is resistant to gouging, scratching and corrosion. The hollow-core construction provides even the standard (undamped) support rods with lower vibration amplitudes and higher resonant frequencies, often preferred for sensitive optical systems. The inherently greater stiffness and strength of these steel rods provides its support for larger and heavier optical components.
Damped Rods
Convenient Table Mounting
Accessories for a Variety of Applications
Newport has designed several accessories that securely mount onto 1.5 in. rods to support and enhance a variety of applications. Optical support platforms are available to provide stable mounting surfaces for optical components at any orientation, angle and height on the post. Our Quick Disconnect Optical Rod Clamps allow components to be detached and attached quickly and easily, which is beneficial when changing or experimenting with different setups. The 625-RC Kinematic Mirror Mounts enable precise beam positioning for 2, 4, and 6 in. diameter mirrors, with either 100-TPI adjustment screws or micrometers for an orthogonal 10° angular adjustment range.
Resources & Downloads
3D Product Models
2D Product Drawings
Model 75-S(113.6 kB, PDF)