Unitron Mounted Eyepiece Optical Tube Mounting Bracket Microscope Accessory

Unitron Mounted Eyepiece Optical Tube Mounting Bracket Microscope Accessory

This is a Unitron branded mounted eyepiece assembly consisting of three components: a Unitron eyepiece, a cylindrical optical tube, and a machined aluminum L-shaped mounting bracket. The set is designed to mount an eyepiece in a fixed position relative to a microscope, instrument, or optical bench, allowing stable hands-free viewing. The bracket clamps to a post or rail via two thumb screws, and the optical tube seats into it securely. The Unitron name is printed clearly on the eyepiece barrel.

Specifications & What's Included

• Brand: Unitron
• Included: Unitron mounted eyepiece, cylindrical optical tube, and L-shaped machined aluminum mounting bracket
• Eyepiece: Unitron branded, with silver knurled focus/adjustment ring
• Optical tube: black anodized cylindrical tube, accepts eyepiece at top end
• Mounting bracket: L-shaped machined aluminum body with two thumb-screw clamps and multiple mounting holes on base plate
• Bracket clamping mechanism: dual thumb screws for post or rail attachment
• Construction: machined metal throughout — no plastic components visible
• Eyepiece optics: clear glass lens, no visible chips or cracks

Applications

Unitron has been a well-regarded name in American optical instrument distribution since the mid-20th century, supplying microscopes, telescopes, and accessories to educational institutions, industrial labs, and scientific facilities. Mounted eyepiece assemblies like this one are used wherever a viewing eyepiece needs to be held in a stable, repeatable position — common applications include inspection stations, quality control setups, projection or relay optics, and auxiliary viewing ports on larger optical instruments. The machined bracket and thumb-screw clamp allow the assembly to be attached to a post, rail, or optical bench without tools, making it adaptable across a range of setups. This style of accessory was standard in mid-to-late 20th century laboratory and industrial optical systems, and remains useful for legacy Unitron microscopes, optical bench work, and custom instrumentation builds.