Patent ID: 11953320
Assignee: NEC CORPORATION
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. An optical coherence tomographic imager, comprising:
a wavelength-tunable light source whose output light wavelength is determined by a plurality of light source drive parameters;
a splitter that branches output light of the wavelength-tunable light source into object light and reference light;
an irradiation optical system that irradiates an object to be measured with the object light;
a two-input balanced light receiver that obtains interference light intensity measurement values by causing object light scattered from the object to be measured and the reference light to interfere with each other and to be guided to a light receiver;
a processor; and
a memory in circuit communication with the processor;
wherein the processor is configured to execute program instructions stored in the memory to reorder the interference light intensity measurement values based on the output light wavelengths; and
wherein the memory stores a corresponding relationship between light source drive parameters and optical source output light wavelength setting values for the wavelength-tunable light source;
wherein the processor is configured to execute program instructions stored in the memory to
generate a first corresponding relationship between (W) the optical source output light wavelength setting values and (I) the interference light intensity measurement values from
a second corresponding relationship between (W) the optical source output light wavelength setting values and (T) a time at which they are sent from the memory, the second corresponding relationship being not a monotonic change, and
a third corresponding relationship between (T) a time and (I) the interference light intensity measurement values, and

reorder the interference light intensity measurement values in an ascending order or a descending order of the optical source output light wavelength setting values.