Exhibition Duration from Lux Budget Calculator
Invert an explicitly mixed daily lighting program into complete budget-compatible display days, not a universal recommended exhibition duration.
Description
A daily lighting program may contain several intensity phases.
A daily lighting program may contain several intensity phases. Their combined dose determines how many complete display days fit a budget.
Invert an explicitly mixed daily lighting program into complete budget-compatible display days, not a universal recommended exhibition duration.
When to use Exhibition Duration from Lux Budget Calculator
Use this tool to invert an explicitly mixed daily lighting program into complete budget-compatible display days, not a universal recommended exhibition duration.
Prepare the collection, exposure, scheduling or financial records required for this calculation. Keep row order and the declared units consistent.
How to use Exhibition Duration from Lux Budget Calculator and understand its results
- Prepare the collection, exposure, scheduling or financial records required for this calculation. Keep row order and the declared units consistent.
- Enter programPhaseLux, programHoursPerDisplayDay, remainingObjectLuxHours using the field table and calculation rules, then run the tool.
- Read programLuxHoursPerDay, maximumCompleteDisplayDays, residualLuxHours. The explanation below defines the units, signs, ordering and any flags or placeholder values.
- If the tool reports an input issue, correct the values and run it again. Apply the stated assumptions when interpreting a successfully returned result.
| Input field | Meaning | Value type; see rules below | Requirement |
|---|---|---|---|
| programPhaseLux | Program phase lux | list of number | Required |
| programHoursPerDisplayDay | Program hours per display day | list of number | Required |
| remainingObjectLuxHours | Remaining object lux hours | number | Required |
Align nonnegative intensities and hours with total hours at most 24. Require positive daily dose and nonnegative remaining lux-hours. Return daily dose, complete days and remainder.1
Paired lists must be nonempty and have equal lengths.
daily dose = Σ phase lux × hours; days = floor(remaining dose/daily dose) Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.
| Output field | Meaning | Value type |
|---|---|---|
| programLuxHoursPerDay | Program lux hours per day | number |
| maximumCompleteDisplayDays | Maximum complete display days | number |
| residualLuxHours | Residual lux hours | number |
{
"input": {
"programPhaseLux": [
50,
100
],
"programHoursPerDisplayDay": [
2,
3
],
"remainingObjectLuxHours": 1000
},
"output": {
"programLuxHoursPerDay": 400,
"maximumCompleteDisplayDays": 2,
"residualLuxHours": 200
}
}Limitations and assumptions
No universal exhibition duration or material-safe budget is established.
Numbers and computed results must be finite; overflow produces an error. Numeric lists are limited to 100,000 entries; the rules above may require smaller limits. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors.
Alternative or Complementary methods
Use Light-Sensitive Object Annual Lux-Hours Budget Calculator: Account measured object light exposure and prior annual ledger against caller budget, retaining signed overspend; dose is not a material-safe limit. For a complementary task, use Light Rotation Schedule Interval Planner for Works on Paper: Fit whole caller rotation blocks independently across works with different remaining light ledgers/illuminance; no recovery of prior fading during dark rotation.
References
Similar or alternative tools
- Light-Sensitive Object Annual Lux-Hours Budget Calculator
Account measured object light exposure and prior annual ledger against caller budget, retaining signed overspend; dose is not a material-safe limit.
- Light Rotation Schedule Interval Planner for Works on Paper
Fit whole caller rotation blocks independently across works with different remaining light ledgers/illuminance; no recovery of prior fading during dark rotation.