利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

77 条记录 (耗时 0.018 秒)

    HIGHLY EFFICIENT LIGHT EXTRACTION SYSTEM FOR LED CHIP ARRAYS
    11.
    发明公开
    HIGHLY EFFICIENT LIGHT EXTRACTION SYSTEM FOR LED CHIP ARRAYS 审中-公开

    公开(公告)号：US20230392768A1

    公开(公告)日：2023-12-07

    申请号：US17887939

    申请日：2022-08-15

    申请人： DICON FIBEROPTICS, INC.

    发明人： Jeffrey B. Lee ,  Tai-Chi Chu ,  Yen-Chih Liu ,  Ho-Shang Lee

    IPC分类号： F21V5/00 ,  F21V5/04

    CPC分类号： F21V5/007 ,  F21V5/04

    摘要： A highly efficient light extraction system for LED chip arrays, in which a multi-function domed lens overlays the LED chip array. A lower portion of the multi-function domed lens acts as a reflector, capturing wide-angle light emitted by the LED chips. An upper portion of the multi-function domed lens provides the function of a refractive lens. The multi-function domed lens provides improved light extraction efficiency over prior art embodiments, greater total light output, as well as a narrower light distribution pattern, with increased light intensity at the center of the beam.

    METHOD AND APPARATUS FOR ADJUSTING THE RATE OF CHANGE OF THE BRIGHTNESS OF A LIGHT EMITTING DIODE (LED) LIGHT FIXTURE
    12.
    发明申请
    METHOD AND APPARATUS FOR ADJUSTING THE RATE OF CHANGE OF THE BRIGHTNESS OF A LIGHT EMITTING DIODE (LED) LIGHT FIXTURE 有权

    公开(公告)号：US20210274613A1

    公开(公告)日：2021-09-02

    申请号：US16872136

    申请日：2020-05-11

    申请人： DICON FIBEROPTICS, INC.

    发明人： Jeffrey Lee

    IPC分类号： H05B45/14 ,  H05B45/3577

    摘要： Light emitting diode (LED) lighting fixtures are presented that use a low-pass filter to smooth out or eliminate discrete, step changes in LED light fixture brightness, that may result from the use of digital brightness level settings. Because some lighting applications require a fast response to changes in the set brightness level, and some applications require a slower response, one set of examples use a switchable RC low-pass filter circuit, with two or more selectable RC time constant values. Another set of examples use a programmable resistance integrated circuit to achieve a more continuously-variable time constant, for greater flexibility in adjusting the response time of the LED lighting fixture, in response to user brightness inputs. The user is able to control the maximum rate of change of the LED light fixture's brightness, in response to changes in the brightness setting.

    Techniques for reducing polarization, wavelength and temperature dependent loss, and wavelength passband width in fiberoptic components
    15.
    发明授权
    Techniques for reducing polarization, wavelength and temperature dependent loss, and wavelength passband width in fiberoptic components 有权

    公开(公告)号：US10598857B2

    公开(公告)日：2020-03-24

    申请号：US16225725

    申请日：2018-12-19

    申请人： DICON FIBEROPTICS, INC.

    发明人： Ho-Shang Lee ,  Min Chieh Lu ,  Yu-Sheng Yang ,  Chen-Wen Ho

    IPC分类号： G02B6/26 ,  G02B6/27 ,  G02B6/293

    摘要： A pin hole or aperture is located or formed adjacent to the end surface of one or more of the input ports or fibers, or adjacent to one or more of the output ports or fibers, of a fiberoptic component. The aperture allows light to enter (or exit) the core of the associated fiber, and the non-transparent layer that surrounds the aperture blocks light from entering or exiting the cladding layer of the associated fiber. This blocking of the evanescent field in the cladding layer serves to reduce the polarization, wavelength, and temperature dependencies of the light coupling to the output port(s) or fiber(s) of the optical component. It can also reduce the passband width of the selected wavelength in tunable optical filter applications. The non-transparent layer surrounding the aperture can be made reflective, and light that is reflected by the non-transparent layer can be used for optical power monitoring.

    In-line uni-directional optical tap detector
    16.
    发明授权
    In-line uni-directional optical tap detector 有权

    公开(公告)号：US10416401B2

    公开(公告)日：2019-09-17

    申请号：US15846641

    申请日：2017-12-19

    申请人： DICON FIBEROPTICS, INC.

    发明人： Ho-Shang Lee

    IPC分类号： G02B6/42 ,  G02B27/14

    摘要： In-line uni-directional optical tap detector devices provide optical power monitoring in a small, inexpensive form factor. A pair of optical fibers with angled end surfaces are fusion-spliced or butt-coupled together, with a thin-film coating or coating stack positioned in between the two fiber end surfaces. The thin-film coating or coating stack acts as an optical tap, reflecting a small portion of the optical signal towards a photo-detector affixed to the exterior of the cladding of the fibers, positioned and angled such that the photo-detector measures the optical power of signals propagating in one direction down the fibers, while ignoring signals propagating in the opposite, or reverse direction. Alternately, a V-groove block or fiber holder is used to position and secure the fibers, without requiring fusion splicing, where the reflection of a portion of the optical signal to the photo-detector may be due to Fresnel reflection at the fiber end surfaces.

    Tunable optical module for optical communication
    19.
    发明授权
    Tunable optical module for optical communication 有权

    公开(公告)号：US09660681B1

    公开(公告)日：2017-05-23

    申请号：US14925719

    申请日：2015-10-28

    申请人： DiCon Fiberoptics, Inc.

    发明人： Ho-Shang Lee ,  Yu-Sheng Yang

    IPC分类号： G02B6/32 ,  G02B6/26 ,  G02B6/42 ,  H04B1/38 ,  H04Q11/00

    CPC分类号： H04B1/38 ,  H04Q11/0005 ,  H04Q2011/0015 ,  H04Q2011/0016 ,  H04Q2011/0018 ,  H04Q2011/0026 ,  H04Q2011/003

    摘要： Light of at least two wavelengths is collimated in a forward path towards a reflector and light of at least one of the wavelengths is focused and detected in a return path, using in both paths a lens unit including a first convex surface and a second surface. A diffraction element diffracts the collimated light of the at least two wavelengths into different wavelength components. The reflector is moved so that one or more of the different wavelength components will be focused by the lens unit in the return path and detected. The second surface reflects the light of the at least two wavelengths from an input port towards the first convex surface and the first convex surface collimates the reflected light of the at least two wavelengths in the forward path, or the first convex surface focuses the one or more wavelength components towards the second surface that reflects the one or more wavelength components to an output port in the return path. The first convex surface can be replaced by a GRIN lens performing the focusing and collimating functions.