📝 Event: 2026-06-16_405nm_led_drift_issue
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📊 Report Overview
Event Metadata
Record Type
Maintenance Event
Maintenance Event
Reason / Suite
Issue_reported
Issue_reported
Service Provider
internal
internal
Instrument
scope-leica-stellaris-8-falcon-flim-resonantMaintenance Action
Reason Details:
Staff reported that the 405 nm LED source is suffering from drift. The drift is causing low power output at the sample plane and misalignment with the white light laser excitation path used for all other channels.
Staff reported that the 405 nm LED source is suffering from drift. The drift is causing low power output at the sample plane and misalignment with the white light laser excitation path used for all other channels.
Action Details:
Usage advisory recorded: avoid the system when samples require 405 nm excitation until the 405 nm LED source issue has been resolved. All other excitation wavelengths remain functional.
Usage advisory recorded: avoid the system when samples require 405 nm excitation until the 405 nm LED source issue has been resolved. All other excitation wavelengths remain functional.
Status After Fix:
LIMITED
Additional Notes
Issue message from staff: the 405 nm LED source is drifting, causing low power output on the sample plane and misalignment with the white light laser. Staff recommend avoiding the system if the sample requires 405 nm excitation; all other wavelengths are still functional.
📄 Raw YAML Ledger
View 2026-06-16_405nm_led_drift_issue.yaml
schema_version: 1
record_type: maintenance_event
maintenance_id: maint_scope-leica-stellaris-8-falcon-flim-resonant_20260616_405nm_led_drift_issue
microscope: scope-leica-stellaris-8-falcon-flim-resonant
service_provider: internal
contact: AIC Staff
started_utc: '2026-06-16T00:00:00Z'
ended_utc: '2026-06-16T00:15:00Z'
reason: issue_reported
reason_details: >-
Staff reported that the 405 nm LED source is suffering from drift. The drift
is causing low power output at the sample plane and misalignment with the
white light laser excitation path used for all other channels.
action: other
action_details: >-
Usage advisory recorded: avoid the system when samples require 405 nm
excitation until the 405 nm LED source issue has been resolved. All other
excitation wavelengths remain functional.
microscope_status_before: in_service
microscope_status_after: limited
status_notes: >-
Limited service: avoid 405 nm excitation-dependent experiments. Other
wavelengths remain functional.
tags:
- 405nm
- LED
- drift
- low_power
- alignment
- usage_advisory
notes: >-
Issue message from staff: the 405 nm LED source is drifting, causing low power
output on the sample plane and misalignment with the white light laser. Staff
recommend avoiding the system if the sample requires 405 nm excitation; all
other wavelengths are still functional.