Zeiss recalls LSM 700, 800, and 900 microscopes with certain stage stands. Tilting the light arm can bypass safety and emit class IIb laser radiation, potentially causing injury.
When the user tilts the transmitted light arm of the microscope to the end of its axis range, laser safety can be bypassed and result in emission of class lIlb laser radiation. This issue arises when a ZEISS inverted stage stand (Axio Observer or Axio Vert) is used in as a component of the LSM 700, 800 and 900 system
Zeiss is recalling laser scanning microscopes (LSM 700, 800, and 900) because using an inverted stage stand can cause the light arm to tilt beyond its safe range, emitting harmful laser radiation. This poses a risk of eye injury if someone looks into the laser beam.
When the light arm of the microscope is tilted to the end of its axis range, the laser safety system can be bypassed. This allows class IIb laser radiation to be emitted, which can cause eye injury if someone looks directly into the beam.
Users of Zeiss LSM 700, 800, and 900 microscopes with an inverted stage stand (Axio Observer or Axio Vert) are affected. Researchers and lab technicians using these microscopes are most at risk.
Check if your microscope model is LSM 700, 800, or 900 and if it uses an inverted stage stand (Axio Observer or Axio Vert). The recall applies to these specific microscope systems.
Identify if your microscope is an LSM 700, 800, or 900 model with an inverted stage stand (Axio Observer or Axio Vert).
Tilting the light arm to the end of its axis range can bypass laser safety and emit class IIb laser radiation, which may cause eye injury.
No, but you should check if your microscope is affected and follow the recall instructions to ensure safety.
The recall does not specify a remedy, so contact Zeiss directly for guidance on safe use or potential repairs.
We’ve drafted a message you can send Zeiss to request your refund or repair — edit it as you like.
Subject: Recall Z-1629-2020 — Zeiss Zeiss Hello, I own a Zeiss that is covered by recall Z-1629-2020 from Zeiss. I’m writing to arrange the remedy described in the recall (a refund, repair, or replacement as applicable). Could you please tell me the next steps to resolve this? Thank you.
Experiences, tips, and questions from readers. Every comment is reviewed before it appears.
No comments yet — be the first to share your experience.
The facts (hazard, remedy, dates, manufacturer) are pulled from the official FDA recall record. The plain-language summary and step-by-step checklist are written by GovInfoNow to make the official notice easier to act on — they don’t replace it.
