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Light source device and method for controlling light source device

一种光源装置、光源的技术，应用在光源、电光源、照明装置等方向，能够解决光传感器不具有检测范围等问题，达到高精度光量调整的效果

Active Publication Date: 2017-02-22
OLYMPUS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, ordinary light sensors do not have such a large detection range

Method used

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  • Light source device and method for controlling light source device
  • Light source device and method for controlling light source device
  • Light source device and method for controlling light source device

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0012] One embodiment of the present invention will be described with reference to the drawings. Such as figure 1 As shown, the endoscope system 10 of the present embodiment includes a light source device 100 for emitting illumination light, an endoscope 200 , a video processor 320 , and a monitor 340 .

[0013] The endoscope 200 is an ordinary endoscope having an elongated insertion portion 202 . The endoscope 200 has a light guide 210 , a lens 220 , and an imaging element 230 . The light guide 210 guides the light emitted from the light source device 100 to the distal end portion of the insertion portion 202 along the insertion portion 202 of the endoscope 200 . The lens 220 is provided at the front end of the insertion part 202 . The light guided by the light guide 210 is emitted from the lens 220 as illumination light. The imaging element 230 is provided at the front end of the insertion portion 202 . The imaging element 230 is, for example, a CCD image sensor or a CM...

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PUM

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Abstract

A light source device (100) is provided with semiconductor light sources (131, 132, 133), a light source control unit (114), light sensors (141, 142, 143), a sensor control unit (112), and an intensity adjusting unit (115). The light source control unit (114) controls, by pulse-width modulation, the amount of light for each field of light emitted from the semiconductor light sources. The light sensors (141, 142, 143) acquire light reception amounts by receiving the light emitted from the semiconductor light sources. The sensor control unit (112) causes the light sensors to detect in an exposure period shorter than the smallest pulse width in the pulse-width modulation, and acquires the light reception amounts acquired by the light sensors. The intensity adjusting unit (115) adjusts the emitted light intensity of the semiconductor light sources on the basis of the light reception amounts.

Description

technical field [0001] The present invention relates to a light source device and a control method for the light source device. Background technique [0002] For example, International Publication No. 2013 / 150897 discloses a light source device for illuminating an endoscope. In this light source device, red LEDs, green LEDs, and blue LEDs are used as light sources. This light source device multiplexes the light emitted from these LEDs to emit white light as illumination light. A light sensor is provided in the light source device, and the light sensor detects the amount of light emitted from each LED. The light source device adjusts the light emission intensity of each LED based on the amount of light detected by the photosensor, and adjusts the color of the illumination light to an appropriate white color. However, how to detect the light quantity of each LED is not specifically disclosed in International Publication No. 2013 / 150897. [0003] For example, in an endoscop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B1/06A61B1/04G02B23/26H05B44/00
CPCA61B1/04A61B1/0661H05B45/22A61B1/0655H05B45/14G02B23/2461
Inventor 坂井爱子矢部雄亮高桥智也
Owner OLYMPUS CORP