Device for preventing dewing of headlamp

    公开(公告)号:US10330278B2

    公开(公告)日:2019-06-25

    申请号:US15562734

    申请日:2016-04-12

    摘要: The present embodiment relates to a device for preventing dewing of headlamp, the device comprising: a housing, which has a light source provided therein, and which has a lens installed on a front end thereof; a thermoelectric module formed inside the housing such that, when power is supplied, one side thereof is heated, while another side surface thereof is cooled; a heat sink for radiating heat generated from the thermoelectric module; a blowing fan formed behind the heat sink; and a blowing duct having a channel formed such that air, which is sent by the blowing fan, ascends along the inner surface of the lens.

    LED HEATER SYSTEM AND METHOD
    34.
    发明申请

    公开(公告)号:US20180128471A1

    公开(公告)日:2018-05-10

    申请号:US15655481

    申请日:2017-07-20

    摘要: The present disclosure includes an apparatus and method relating to LED fixtures having an LED module capable of operating at a temperature. The LED module is also capable of being operated within a desired temperature range having an upper limit and a lower limit. A fan is operable for cooling the LED module when the temperature of the LED module approaches the upper limit. A heater is operable for heating the LED module when the temperature of the LED module approaches the lower limit. A heat sink may be in thermal communication with the LED module such that the fan may cool and the heater may heat the heat sink. The controller may also be configured to selectively activate the heater and the fan. The controller may also be in electrical communication with a temperature sensor which is in thermal communication with the LED module such that the controller may read the temperature of the LED module. The controller may activate the fan and/or the heater depending on the temperature of the LED module.

    Light-emitting diode driving apparatus and lighting device

    公开(公告)号:US09829188B2

    公开(公告)日:2017-11-28

    申请号:US15345676

    申请日:2016-11-08

    IPC分类号: H01L31/12 F21V29/54 H05B33/08

    摘要: An LED driving apparatus includes: a PCB substrate having a voltage transformer and a switching device provided above the PCB substrate, the PCB substrate including a first circuit corresponding to a primary side of the voltage transformer and a second circuit corresponding to a secondary side of the voltage transformer; a first molding layer which is provided on the PCB substrate and covers the voltage transformer and the switching device; and a plurality of thermoelectric devices where heat dissipates. Some of the thermoelectric devices are connected to the first circuit and others of the thermoelectric devices are connected to the second circuit.

    LIGHT SOURCE APPARATUS AND ENDOSCOPE APPARATUS
    40.
    发明申请
    LIGHT SOURCE APPARATUS AND ENDOSCOPE APPARATUS 有权
    光源装置和内窥镜装置

    公开(公告)号:US20160157322A1

    公开(公告)日:2016-06-02

    申请号:US15040089

    申请日:2016-02-10

    摘要: 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.

    摘要翻译: 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。