Lasers, Optics & Photonics Manufacturing worked example
Lens Inspection Workload at 11% documentation and calibration allowance: a worked example
Suppose documentation and calibration allowance falls to 11%. This page works the full calculation at that level so you can see exactly which result moves and by how much. Estimate total inspection hours for a batch of lenses or optical components, including visual inspection (scratch-dig), interferometric surface figure measurement, and dimensional checks.
The inputs for this scenario
- Components to inspect: 150 pieces (held at the documented default)
- Inspection rate: 8 pieces / hr (held at the documented default)
- Documentation and calibration allowance: 11 % (the input this scenario stresses; the baseline uses 15)
Working through the calculation
- The calculation starts from the formula this tool documents: Base inspection time = components to inspect / inspection rate.
- Total lens inspection workload works out to 20.81 hr at these inputs, and this is the headline figure for the scenario.
- Base inspection time works out to 18.75 hr at these inputs.
- Documentation and calibration time added works out to 11 % at these inputs.
- Inspection rate works out to 8 pieces / min at these inputs.
How this compares with the baseline
- Against the tool's baseline example, where documentation and calibration allowance sits at 15% and the headline result is 21.56 hr, this scenario comes in 3.48% below the baseline at 20.81 hr.
- It computes total inspection labor hours from piece count and inspection rate, uplifted by a documentation and calibration allowance. When the numbers land here, the stressed input is the lever to work; the walkthrough above shows exactly how much each output recovers as it climbs back toward the baseline.
Results at a glance
- Total lens inspection workload: 20.81 hr (headline result)
- Base inspection time: 18.75 hr
- Documentation and calibration time added: 11 %
- Inspection rate: 8 pieces / min
Run it with your numbers
- To rerun this with your own numbers, open the live Lens Inspection Workload calculator, set documentation and calibration allowance to your actual value, and adjust the remaining inputs to match your operation.
Last reviewed 2026-05-12.