Patent ID: 11971296
Assignee: KABUSHIKI KAISHA NIHON MICRONICS
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 10:
11. A measurement system for measuring an emission light output from an optical semiconductor element, the system comprising:
an optical probe configured to receive the emission light on an incident end surface;
an optical probe head configured to hold the optical probe and to set a gap between the optical semiconductor element and the incident end surface to a predetermined working distance; and
a driving device configured to move at least either the optical probe head or the optical semiconductor element,
the driving device shifting a relative position between the optical semiconductor element and the optical probe on a plane surface intersecting with and perpendicular to an optical axis of the emission light,
the measurement system being configured to measure an incident intensity of the emission light at a plurality of different shifted positions, resulting in a plurality of measured incident intensities corresponding to the plurality of different shifted positions, wherein the shifting is performed while keeping the predetermined working distance constant, and the measurement system being configured to obtain an incident intensity pattern from the plurality of measured incident intensities, the incident intensity pattern showing a relationship between a change in the relative position and the respective plurality of measured incident intensities.