An endoscope includes: an image pickup device configured to convert image pickup light into an image pickup signal and output the image pickup signal； a light emitting element configured to output an optical signal based on the image pickup signal； a bonded prism including: a first prism including a first reflecting surface configured to reflect the image pickup light and a lower surface that is a first emitting surface configured to emit the image pickup light to the image pickup device； and a second prism including a second reflecting surface configured to reflect the optical signal that is incident from an upper surface and outputted from the light emitting element, the second reflecting surface being bonded with the first reflecting surface； and an optical fiber configured to transmit the optical signal reflected by the second reflecting surface.
