Scanning endoscope apparatus, scanning endoscope, and scanning endoscope processor

A scanning endoscope comprising:

• a first transmitter that transmits light received at a first incident end to a first emission end, the first transmitter emitting a beam of the light exiting the first emission end;
• an actuator that moves the first emission end in a direction perpendicular to an emission direction, the beam of the exiting light being emitted from the first emission end in the emission direction;
• a first optical filter that is mounted in the optical path of the light emitted from the first emission end, the first optical filter reflecting the light of the first band, the first optical filter transmitting light of a second band, the second band being outside of the first band;
• a second optical filter that is mounted in the optical path of the light of the first band that is reflected by the first optical filter, the second optical filter transmitting the light of the first band at a transmittance that varies according to the position on the second optical filter where the light of the first band makes contact;
• and
• a second transmitter that transmits the light of the first band, which passes through the second optical filter, from a second incident end to a second emission end.

A scanning endoscope apparatus comprising:

• a light source that emits first light;
• a first transmitter that transmits the first light emitted from the light source from a first incident end to a first emission end, the first transmitter emitting a beam of the first light exiting the first emission end;
• an actuator that moves the first emission end in a direction perpendicular to an emission direction, the beam of the exiting first light being emitted from the first emission end in the emission direction;
• a third optical filter that is mounted in the optical path of the first light emitted from the first emission end, the third optical filter reflecting a part of the first light, the third optical filter transmitting a part of the first light;
• a fourth optical filter that is mounted in the optical path of the first light reflected by the third optical filter, the fourth optical filter transmitting the first light at a transmittance that varies according to the position on the fourth optical filter where the first light makes contact;
• a second transmitter that transmits the first light, which passes through the fourth optical filter, from a second incident end to a second emission end;
• and
• a third transmitter that receives reflected light or fluorescence from an observation area that has been illuminated with the first light that passed through the third optical filter at a third incident end, the third transmitter transmitting the reflected light or fluorescence from the third incident end to a third emission end,
• a pixel signal being generated for the observation area according to an amount of the first light or fluorescence that is emitted from the third emission end,
• a position of the first emission end being determined on the basis of an amount of the first light emitted from the second emission end.

A scanning endoscope comprising:

• a first transmitter that transmits first light from a first incident end to a first emission end, the first transmitter emitting a beam of the first light exiting from the first emission end;
• an actuator that moves the first emission end in a direction perpendicular to an emission direction, the beam of the exiting first light being emitted from the first emission end in the emission direction;
• a third optical filter that is mounted in the optical path of the first light emitted from the first emission end, the third optical filter reflecting a part of the first light, the third optical filter transmitting a part of the first light;
• a fourth optical filter that is mounted in the optical path of the first light reflected by the third optical filter, the fourth optical filter transmitting the first light at a transmittance that varies according to the position on the fourth optical filter where the first light makes contact;
• a second transmitter that transmits the first light, which passes through the fourth optical filter, from a second incident end to a second emission end;
• and
• a third transmitter that receives reflected light or fluorescence from an observation area that has been illuminated with the first light that passes through the third optical filter at a third incident end, the third transmitter transmitting the reflected light or fluorescence from the third incident end to a third emission end.