Nachet NS400 NS 400 Self-Projecting Microscope Jobin Yvon No Objectives For

Nachet NS400 NS 400 Self-Projecting Microscope Jobin Yvon No Objectives For Parts

The Nachet NS400 is a benchtop self-projecting microscope manufactured in France by Nachet, under the Instruments SA / Jobin-Yvon division. Self-projecting microscopes use an internal optical path to cast a magnified image onto a built-in ground-glass or translucent projection screen, allowing the user to view a large, flat projected image without looking through an eyepiece. This unit is being sold as-is for parts or repair — it has no objectives installed and the projection viewing glass is cracked and broken.

Specifications & What's Included

• Manufacturer: Nachet France (Instruments SA, division Jobin-Yvon)
• Model: NS 400
• Rating plate reference: MAR 82/20 (Instruments SA internal type designation)
• Serial number: 700358
• Country of manufacture: France
• Form factor: Benchtop
• Nosepiece: 5-position revolving turret — all five objective ports empty, no objectives present
• Stage: Manually adjustable XY mechanical stage
• Projection screen/viewing glass: Cracked and broken — large section missing from lower-left corner (clearly visible in photos)
• Illuminator/light path housing: Present and intact externally
• Mechanical body, column, and base: Appear physically intact
• Power cord: Present and attached
• Objectives: None included
• Condition: For parts or repair — sold as-is

Applications

Self-projecting microscopes like the Nachet NS400 were developed for industrial and laboratory inspection tasks where a large, easy-to-view projected image is preferred over a conventional eyepiece. They were commonly used in materials science, metallurgy, quality control, electronics manufacturing inspection, and textile analysis. Instruments SA and its Jobin-Yvon division were well-regarded French scientific instrument makers, and Nachet was one of France's leading microscope brands with roots going back to the 19th century. This instrument dates from the early 1980s based on its rating plate reference. Units in this style are of interest to laboratories maintaining legacy microscopy setups, collectors of vintage French scientific instruments, and buyers sourcing replacement mechanical components such as the nosepiece, stage assembly, or optical body for other NS400 or compatible Nachet instruments.