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CN-224220110-U - Light source device and system

CN224220110UCN 224220110 UCN224220110 UCN 224220110UCN-224220110-U

Abstract

The utility model provides a light source device and a system of an endoscope, which can control light emitted from the endoscope with high precision. The control device (11) is provided with 5 Light sources (80) for generating Light of different colors, an optical member (60) configured to be capable of introducing Light generated by the 5 Light sources (80) into a Light Guide (41) of an endoscope (10), wherein the wavelength of Light generated by an IR Light source (85) which is a specific Light source other than the 4 Light sources (80) among the 5 Light sources (80) is longer than the wavelength of Light generated by the 4 Light sources (80), the IR Light source (85) is provided with an IR Light detection element (75) for detecting a part of the Light generated by the IR Light source (85) and is composed of silicon, and a Light reduction member (90) for reducing the Light incident on the IR Light detection element (75).

Inventors

  • FUKUDA TAKASHI
  • YOHIOKA MASATO
  • SHAN QICHENG

Assignees

  • 富士胶片株式会社

Dates

Publication Date
20260512
Application Date
20250117
Priority Date
20240119

Claims (10)

  1. 1. A light source device is characterized by comprising: more than 5 light sources for generating light with different colors, and An optical member configured to be capable of introducing light generated by the 5 or more light sources into a light guide beam of an endoscope, Of the 5 or more light sources, the wavelength of light generated by a specific light source other than the 4 light sources is longer than the wavelength of light generated by the 4 light sources, The light source device comprises a1 st light detection element which detects a part of light generated by the specific light source and is composed of silicon, and And a light-reducing member that reduces light incident on the 1 st light-detecting element.
  2. 2. The light source device according to claim 1, wherein, The specific light source generates light of an infrared wavelength band.
  3. 3. The light source device according to claim 2, wherein, The light reducing component is a neutral density filter.
  4. 4. A light source device according to any one of claims 1 to 3, further comprising: And a restricting member that is provided between the light reducing member and the 1 st light detecting element and restricts an incidence range of light to the 1 st light detecting element.
  5. 5. A light source device according to any one of claims 1 to 3, wherein, The 1 st light detection element is a light detection element having a light receiving region divided into a plurality of regions.
  6. 6. A light source device according to any one of claims 1 to 3, further comprising: a 2 nd light detecting element detecting a part of light generated by at least 1 light source out of the 4 light sources.
  7. 7. A system, comprising: Control means comprising the light source device of any one of claims 1 to 3; An endoscope connected to the control device, and A communication unit which is provided in the endoscope and the control device and which performs optical communication of an image signal and a control signal between the control device and the endoscope, The communication section has an optical path through which light used for communication passes, The optical path serves as an optical path of light based on the image signal and an optical path of light based on the control signal, The communication frequency of the image signal is higher than the communication frequency of the control signal.
  8. 8. The system of claim 7, wherein, The communication section performs communication of the image signal using light generated by a light emitting element of type 1, and performs communication of the control signal using light generated by a light emitting element of type 2 different from the type 1.
  9. 9. The system of claim 8, wherein, The type 1 light emitting element is a laser diode, The light emitting element of type 2 is a light emitting diode.
  10. 10. A system, comprising: A light source device according to claim 1 to 3, and The processor may be configured to perform the steps of, The processor controls the amount of light generated by at least 2 light sources of the 5 or more light sources.

Description

Light source device and system Technical Field The present technology relates to a light source device and a system. Background Patent documents 1 to 4 describe a light source device for an endoscope. Patent documents 5 to 7 describe a technique for connecting an endoscope and a control device. Patent document 1 Chinese patent application publication No. 112904549 specification Patent document 2 Chinese patent application publication No. 115227188 specification Patent document 3 Chinese patent application publication No. 115227187 specification Patent document 4 Chinese patent application publication No. 115200703 specification Patent document 5 Chinese patent No. 115296744 Patent document 6 Chinese utility model No. 218899384 specification Patent document 7 Chinese utility model No. 215838929 specification Disclosure of utility model The present utility model provides a light source device and a system for an endoscope, which can control light emitted from the endoscope with high accuracy. A light source device according to an aspect of the present utility model includes 5 or more light sources for generating light of different colors, an optical member configured to be capable of introducing light generated by the 5 or more light sources into a light guide beam of an endoscope, wherein the wavelength of light generated by a specific light source other than the 4 light sources among the 5 or more light sources is longer than the wavelength of light generated by the 4 light sources, the light source device includes a 1 st light detection element for detecting a part of the light generated by the specific light source and configured of silicon, and a light reduction member for reducing light incident on the 1 st light detection element. A system according to an aspect of the present utility model includes the light source device and a processor for controlling the amount of light generated by at least 2 light sources out of the 5 or more light sources. Effects of the utility model According to the technique of the present utility model, light emitted from an endoscope can be controlled with high accuracy. Drawings Fig. 1 is an external view showing an endoscope apparatus as an embodiment of the technique of the present utility model. Fig. 2 is a block diagram showing the structure of the endoscope apparatus 2 shown in fig. 1. Fig. 3 is a schematic view showing an example of the external appearance of the endoscope connector 18. Fig. 4 is a schematic diagram showing an example of the internal structure of the light source unit 59 shown in fig. 2. Fig. 5 is a diagram showing a modification 1 of the light source unit 59. Fig. 6 is a diagram showing a modification 2 of the light source unit 59. Fig. 7 is a schematic cross-sectional view of the dichroic filter 92 and the dichroic light detecting element 76 of the light source unit 59 shown in fig. 6. Fig. 8 is a schematic diagram showing a configuration example of hardware for communication between the endoscope 10 and the control device 11. Symbol description IL, CL1, CL 2-light, 2-endoscope apparatus, 10-endoscope, 11-control apparatus, 12-connector, 13-insertion section, 14-front end section, 15-operation section, 17-universal cord, 18-endoscope connector, 18A-1 st connector housing, 18B-2 nd connector housing, 18C-3 rd connector housing, 19-monitor, 20-light guide rod, 21-supply metal cap, 22-image signal transmission connector, 22A, 23-window, 24-supply air, water supply connector, 25-balloon connector, 26-ventilation connector, 30-imaging section, 31-power generation section, 32-A/D converter, 33-DSP, 34-image signal modulation section, 35-image signal transmission section, a 36-power receiving section, a 37-timing signal generating circuit, a 38-CPU, a 39, a 57-signal converting section, a 40, a 56-signal transmitting-receiving section, a 40A, a 56B-light emitting device, a 40B, a 56A-light receiving device, a 41-light guide beam, a 51-power supplying section, a 52-power supply circuit, a 53-image signal receiving section, a 54-image signal demodulating section, a 55-signal processing circuit, a 58-control section, a 59-light source unit, a 60-optical member, 61, 62, 63, 64, 65, 67, 94, 95, 96, 97-dichroic mirror, 66-condensing lens, 70-light detecting element, 71-A light detecting element, 72-G light detecting element, 73-V light detecting element, 74-B light detecting element, 75-IR light detecting element, 76-two-color light detecting element, 76A-1 st light receiving area, 76B-2 nd light receiving area, 80-light source, 81-A light source, 82-G light source, 83-V light source, 84-B light source, 85-IR light source, 90-dimming component, 91-limiting component, 92-spectral filter, 92A-1 st filter, 92B-2 nd filter, 93-light path, 100-power supply. Detailed Description Fig. 1 is an external view showing an endoscope apparatus as an embodiment of the technique of the present utility model. Fig. 2 is a block diagram showing the structure of the endoscope appa