公开(公告)号：US11156350B2

公开(公告)日：2021-10-26

申请号：US17174623

申请日：2021-02-12

Applicant: OLYMPUS CORPORATION

Inventor： Yusuke Yoshida

IPC: F21V29/71

Abstract: A light source device includes has a configuration in which a height of a heat sink from a reference surface when the reference surface is a bottom surface of a housing is set to be lower than a height of a light source unit from the reference surface, and a heat pipe includes a first heat pipe, a first end part of which is connected with the heat generation body and a second end part of which is connected with the heat sink, and a second heat pipe, a third end part of which is connected with a heat generation body and a fourth end part of which is connected with the heat sink so that a distance to the second end part is longer than a distance between the first end part and the third end part.

公开(公告)号：US10725283B2

公开(公告)日：2020-07-28

申请号：US15786731

申请日：2017-10-18

Applicant: OLYMPUS CORPORATION

Inventor： Yusuke Yoshida ,  Yutaka Shirota ,  Masaaki Watanabe

IPC: G02B23/24 ,  A61B1/06 ,  G02B23/26 ,  A61B1/00 ,  A61B1/04 ,  A61B1/12

Abstract: An optical sensor that detects intensity of light is disposed, inside an optical case, at a position that allows the optical sensor to receive light other than light received by a lens system, out of light emitted by an LED. The optical sensor is housed in a dedicated photometric case. The photometric case is provided with a light guide portion that includes a transmission part and a shielding part. The transmission part is disposed in an optical path of light that directly travels from the LED to the optical sensor and allows transmission of the light. The shielding part blocks indirect light that is reflected or scattered inside the optical case, from entering the optical sensor. Accordingly, it is possible to accurately detect only the light in the direct optical path from the LED.

公开(公告)号：US10085630B2

公开(公告)日：2018-10-02

申请号：US15142507

申请日：2016-04-29

Applicant: OLYMPUS CORPORATION

Inventor： Yutaka Shirota ,  Tomoya Takahashi ,  Masato Toda ,  Yusuke Yabe ,  Yusuke Yoshida ,  Aiko Sakai ,  Takahiro Masaki ,  Takahiro Hayama ,  Ryo Machida ,  Koji Omori

IPC: A61B1/06 ,  A61B1/12 ,  G02B23/24 ,  G02B27/14 ,  A61B1/00 ,  A61B1/04 ,  A61B1/07 ,  H01L33/64

Abstract: An endoscope apparatus includes: first and second cooling units configured to cool first and second light source portions; an image pickup portion configured to generate a picked-up image; and a cooling control portion configured to control amounts of light emission of the light source portions while maintaining an amount-of-light ratio so that the brightness of the picked-up image becomes the target brightness and control cooling based on the information about the amount-of-light ratio and the brightness control information; wherein the cooling control portion decides a cooling capacity of the first cooling units and a cooling capacity of the second cooling units for cooling the respective light source portions for which the amounts of light emission are controlled, at the cooling ratio, so as to cause the light source portions to be included within a predetermined temperature range, based on the brightness control information.

公开(公告)号：US09526144B2

公开(公告)日：2016-12-20

申请号：US15040089

申请日：2016-02-10

Applicant: OLYMPUS CORPORATION

Inventor： Yusuke Yabe ,  Tomoya Takahashi ,  Yusuke Yoshida ,  Masato Toda

IPC: H05B33/08 ,  G02B23/24 ,  A61B1/00 ,  A61B1/06 ,  A61B1/12 ,  F21V29/54 ,  H04N5/225 ,  H04N5/235

CPC classification number: H05B33/0884 ,  A61B1/00002 ,  A61B1/00006 ,  A61B1/0684 ,  A61B1/12 ,  A61B1/128 ,  F21V29/54 ,  G02B23/2461 ,  H04N5/2256 ,  H04N5/2257 ,  H04N5/2354 ,  H04N2005/2255 ,  H05B33/0845

Abstract: A light source apparatus includes a cooling device configured to be able to cool a semiconductor light-emitting device, a light-emitting device drive section that supplies a semiconductor light-emitting device drive signal to the semiconductor light-emitting device, a cooling device drive section that supplies a cooling device drive signal to the cooling device, a semiconductor light-emitting device drive control section that sets a duty ratio of the semiconductor light-emitting device drive signal and controls an amount of light emission of the semiconductor light-emitting device, and a cooling device drive control section that generates the cooling device drive signal having a same duty ratio as the duty ratio of the semiconductor light-emitting device drive signal and having timing synchronized with the semiconductor light-emitting device drive signal and adjusts a signal level of the cooling device drive signal based on a measurement result of a temperature of the semiconductor light-emitting device.

Abstract translation: 光源装置包括：冷却装置，其能够冷却半导体发光装置;向半导体发光装置供给半导体发光装置驱动信号的发光装置驱动部;冷却装置驱动 将冷却装置驱动信号提供给冷却装置的半导体发光装置驱动控制部，其设定半导体发光装置驱动信号的占空比，并控制半导体发光装置的发光量 以及冷却装置驱动控制部，其生成与半导体发光装置驱动信号的占空比相同的占空比的冷却装置驱动信号，并且具有与半导体发光装置驱动信号同步的定时，并调整信号 基于半导体lig的温度的测量结果，冷却装置驱动信号的电平 ht发射设备。