Patent ID: 11966112
Assignee: JAPAN DISPLAY INC.
Field: Medical technology (Instruments)
Classification: CPC G  A | IPC A  G

Claim 0:
1. A detection apparatus comprising:
an optical sensor comprising a sensor base member and a plurality of photoelectric conversion elements that are provided on the sensor base member and each of which is configured to output a signal corresponding to light emitted to the photoelectric conversion element;
a lighting device comprising a plurality of first light-emitting elements configured to emit first light having a first maximum emission wavelength and a plurality of second light-emitting elements configured to emit second light having a second maximum emission wavelength, toward a front side of the detection apparatus, the front side being a side opposite to the optical sensor in a first direction orthogonal to the sensor base member; and
a wavelength selection filter provided between the optical sensor and the lighting device in the first direction and that faces the photoelectric conversion elements, wherein
each of the photoelectric conversion elements has responsivity in a wavelength region including a wavelength region of the first light and a wavelength region of the second light,
the first light-emitting elements and the second light-emitting elements are configured to emit the first light and the second light at respective different wavelengths in a time-division manner, and the wavelength selection filter is configured to vary a transmission band for transmitting light incident on the photoelectric conversion elements and a non-transmission band for not transmitting the light in a time-division manner.