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CN-116262030-B - Binocular endoscope and binocular endoscope imaging system thereof

CN116262030BCN 116262030 BCN116262030 BCN 116262030BCN-116262030-B

Abstract

The invention relates to a binocular endoscope and a binocular endoscope imaging system. The binocular endoscope imaging system comprises a light source module, two imaging modules and two camera shooting modules, wherein the light source module is used for illuminating an object to be detected, the light source module comprises a first light source with the wavelength of light ranging from 400nm to 700nm, the imaging modules are used for guiding light reflected by the object to be detected to the camera shooting modules, and the imaging modules and the camera shooting modules form binocular imaging in one-to-one correspondence. The camera shooting module comprises a light splitting element, a first photosensitive element and a second photosensitive element, wherein the light splitting element is arranged on the light incident side of the first photosensitive element and the light incident side of the second photosensitive element and is used for reflecting part of light with the wavelength of 400-700 nm to the first photosensitive element and transmitting the rest of light with the wavelength of 400-700 nm to the second photosensitive element. According to the binocular endoscope imaging system, the obtained image of the measured object is not limited to a single photosensitive element, and the image quality is greatly improved.

Inventors

  • Request for anonymity
  • WANG LINGWU
  • Request for anonymity

Assignees

  • 微创优通医疗科技（上海）有限公司

Dates

Publication Date
20260508
Application Date
20211214

Claims (12)

  1. 1. The binocular endoscope imaging system is characterized by comprising a light source module, two imaging modules and two camera modules, wherein the light source module is used for illuminating an object to be detected, the light source module comprises a first light source with the wavelength of light between 400nm and 700nm, the imaging modules are used for guiding light reflected by the object to the camera modules, and the imaging modules and the camera modules are in one-to-one correspondence to form binocular imaging; The image pickup module comprises a light splitting element, a first photosensitive element and a second photosensitive element, wherein the light splitting element is arranged on the light incident side of the first photosensitive element and the light incident side of the second photosensitive element and is used for reflecting part of light with the wavelength of 400-700 nm to the first photosensitive element, transmitting the rest of light with the wavelength of 400-700 nm to the second photosensitive element, the first photosensitive element is used for receiving white light and forming a color image, the second photosensitive element is used for receiving white light and forming a gray image, and the binocular endoscope imaging system is provided with a white light illumination mode, and the color image and the gray image are overlapped to form a first image in the white light illumination mode.
  2. 2. The binocular endoscopic imaging system of claim 1, wherein the spectral element has a transmittance of 20% -50% and a reflectance of 50% -80% for light having a wavelength of 400nm-700 nm.
  3. 3. The binocular endoscopic imaging system of claim 1, wherein the light source module further comprises a second light source and a dichroic mirror, the first light source and the second light source having different light exit wavelengths, the dichroic mirror being disposed on the light exit side of the first light source and the second light source, the dichroic mirror being capable of reflecting light rays emitted by the first light source and transmitting light rays emitted by the second light source.
  4. 4. The binocular endoscopic imaging system of claim 3, wherein the first light source forms a first included angle with the light exiting direction of the second light source, wherein a second included angle is formed between the light exiting direction of the first light source and the dichroic mirror, and wherein the first included angle is twice the second included angle.
  5. 5. The binocular endoscopic imaging system of claim 3, further comprising a filter module disposed on the light emitting side of the light source module, the filter module comprising at least two filter channels, the filter channels being in one-to-one correspondence with the light rays of different light emitting wavelengths emitted by the light source module, each filter channel being capable of transmitting a corresponding one of the light rays and blocking the remaining light rays.
  6. 6. The binocular endoscopic imaging system of claim 5, wherein the filter module comprises a conversion member, wherein a first filter channel corresponding to the first light source and a second filter channel corresponding to the second light source are arranged on the conversion member, and when different light sources emit light, the first filter channel and the second filter channel are switched to the light emitting path of the light source module according to different movement positions of the conversion member.
  7. 7. The binocular endoscopic imaging system of claim 6, wherein the transition piece is of a runner configuration, the first and second filter channels being circumferentially disposed on the transition piece.
  8. 8. The binocular endoscopic imaging system of claim 7, wherein the filter module comprises at least one first filter and at least one second filter, the first filter and the second filter being disposed at intervals along the circumference of the transition piece, the first filter forming the first filter channel and the second filter forming the second filter channel.
  9. 9. The binocular endoscopic imaging system of claim 3, wherein the second photosensitive element further corresponds to receiving the light output of the second light source transmitted by the light splitting element.
  10. 10. The binocular endoscopic imaging system of claim 9, wherein, The light emitting wavelength of the second light source is 750nm-810 nm; the light splitting element can transmit light rays with the wavelength of 810-910 nm.
  11. 11. The binocular endoscopic imaging system of any of claims 1-10, wherein the imaging module comprises an objective lens assembly, an image-transmitting element, an eyepiece assembly, and an adapter assembly, wherein light reflected by the object under test enters the camera module after passing through the objective lens assembly, the image-transmitting element, the eyepiece assembly, and the adapter assembly in order; And/or the imaging module comprises two reflecting elements, wherein the reflecting elements are used for deflecting the light paths so as to enable the light paths of the two imaging modules to be far away from each other.
  12. 12. A binocular endoscope comprising a binocular endoscopic imaging system according to any one of claims 1-11.

Description

Binocular endoscope and binocular endoscope imaging system thereof Technical Field The invention relates to the technical field of medical instruments, in particular to a binocular endoscope and a binocular endoscope imaging system thereof. Background The conventional endoscope generally includes a white light imaging mode capable of forming a color image of a subject to thereby visualize a true color of the subject, and a special light imaging mode capable of forming a gray image of the subject to thereby visualize a lesion area by illuminating the subject with light of a specific spectral band. The combination of the white light imaging mode and the special light imaging mode can be used for diagnosing and treating diseases of human tissues. However, in practical application, the conventional endoscope has low image quality in the white light imaging mode, which affects the accuracy of diagnosis. Disclosure of Invention Based on this, it is necessary to provide a binocular endoscope and a binocular endoscopic imaging system thereof against the problem of low image quality of the white light imaging mode. The binocular endoscope imaging system comprises a light source module, two imaging modules and two camera shooting modules, wherein the light source module is used for illuminating a tested object, the light source module comprises a first light source with the wavelength of light of 400-700 nm, the imaging modules are used for guiding light reflected by the tested object to the camera shooting modules, and the imaging modules and the camera shooting modules form binocular imaging in a one-to-one correspondence mode; The camera shooting module comprises a light splitting element, a first photosensitive element and a second photosensitive element, wherein the light splitting element is arranged on the light incident side of the first photosensitive element and the light incident side of the second photosensitive element and is used for reflecting part of light with the wavelength of 400-700 nm to the first photosensitive element and transmitting the rest of light with the wavelength of 400-700 nm to the second photosensitive element. In one embodiment, the light-splitting element has a transmittance of 20% -50% and a reflectance of 50% -80% for light with a wavelength of 400nm-700 nm. In one embodiment, the light source module further includes a second light source and a dichroic mirror, the first light source and the second light source have different light-emitting wavelengths, the dichroic mirror is disposed on the light-emitting sides of the first light source and the second light source, and the dichroic mirror is capable of reflecting the light emitted by the first light source and transmitting the light emitted by the second light source. In one embodiment, the light emitting direction of the first light source and the light emitting direction of the second light source form a first included angle, and a second included angle is formed between the light emitting direction of the first light source and the bicolor mirror, and the first included angle is twice the second included angle. In one embodiment, the binocular endoscope imaging system further comprises a light filtering module arranged on the light emitting side of the light source module, the light filtering module comprises at least two light filtering channels, the light filtering channels are in one-to-one correspondence with the light rays with different light emitting wavelengths emitted by the light source module, and each light filtering channel can transmit one corresponding light ray and block other light rays. In one embodiment, the light filtering module comprises a conversion piece, wherein a first light filtering channel corresponding to the first light source and a second light filtering channel corresponding to the second light source are arranged on the conversion piece, and when different light sources emit light, the first light filtering channel and the second light filtering channel are switched to the light emitting path of the light source module according to different movement positions of the conversion piece. In one embodiment, the conversion member is a rotating wheel structure capable of rotating along an axis, and the first filtering channel and the second filtering channel are circumferentially arranged on the conversion member. In one embodiment, the optical filter module includes at least one first optical filter and at least one second optical filter, the first optical filter and the second optical filter are arranged at intervals along the circumferential direction of the conversion element, the first optical filter forms the first optical filter channel, and the second optical filter forms the second optical filter channel. In one embodiment, the second photosensitive element further receives the light emitted from the second light source transmitted by the light splitting element. In one of the embodiments