Lasers, Optics & Photonics Manufacturing worked example

Clean Optics Handling Burden at 22% gowning and bench prep allowance: a worked example

This worked example runs the clean optics handling burden numbers for a tougher week than the baseline: 22% gowning and bench prep allowance instead of the typical 30%. Estimate total cleanroom handling time for optical components including gowning, laminar flow bench preparation, lint-free packaging, and contamination-controlled transport between process steps.

The inputs for this scenario

  • Total optic handling transfers: 200 transfers (held at the documented default)
  • Handling rate per technician: 20 transfers / hr (held at the documented default)
  • Gowning and bench prep allowance: 22 % (the input this scenario stresses; the baseline uses 30)

Working through the calculation

  • The calculation starts from the formula this tool documents: Base handling time = total transfers / handling rate.
  • Total cleanroom handling burden works out to 12.2 hr at these inputs, and this is the headline figure for the scenario.
  • Base handling time works out to 10 hr at these inputs.
  • Gowning and prep time added works out to 22 % at these inputs.
  • Handling rate works out to 20 pieces / min at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where gowning and bench prep allowance sits at 30% and the headline result is 13 hr, this scenario comes in 6.15% below the baseline at 12.2 hr.
  • Use it when planning cleanroom staffing, scheduling a batch of optic transfers, or quantifying how much capacity gowning overhead consumes. A result at this level usually justifies acting on the stressed input before touching anything else, because every other figure in the table is downstream of it.

Results at a glance

  • Total cleanroom handling burden: 12.2 hr (headline result)
  • Base handling time: 10 hr
  • Gowning and prep time added: 22 %
  • Handling rate: 20 pieces / min

Run it with your numbers

  • To rerun this with your own numbers, open the live Clean Optics Handling Burden calculator, set gowning and bench prep allowance to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.