Endoscope system
AssigneeFUJIFILM Corporation
InventorKenichi OTANI
Life of this patent
Estimating the term…
Abstract
The endoscope system includes a light source device that illuminates a subject, dichroic mirrors that separate a reflected light beam from the subject into a first blue light beam, a second blue light beam, a green light beam, and a red light beam, a CMOS sensor that picks up an image of the first blue light beam, a CMOS sensor that picks up an image of the second blue light beam, a CMOS sensor that picks up an image of the green light beam, and a CMOS sensor that picks up an image of the red light beam, and a control unit that controls image pickup. The control unit independently controls the exposure times of the CMOS sensors.
Claims11
An endoscope system that illuminates a subject and picks up an image of a reflected light beam from the subject, the endoscope system comprising:
- a spectral element that separates the reflected light beam into light beams in a plurality of wavelength ranges;
- a plurality of image pickup elements on which the light beams in the plurality of wavelength ranges, which are separated by the spectral element, are incident, respectively;
- and
- a processor that controls exposure times of the plurality of image pickup elements for each image pickup element to perform image pickup,
- wherein the image pickup elements include a first image pickup element on which a light beam in a first wavelength range including a first wavelength is incident, and a second image pickup element on which a light beam in a second wavelength range including a second wavelength of which a wavelength difference from the first wavelength is 30 nm or less is incident,
- the exposure time of at least one of the first image pickup element or the second image pickup element is longer than the exposure time of the other image pickup element, and
- there is an overlap between the first wavelength range and the second wavelength range, and the exposure time of the image pickup element, on which the light beam in the wavelength range in which the amount of light is reduced by the spectroscopy is incident, is longer than the exposure time of the other image pickup element.
Dependencies are inferred from the claim text.