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    Lamp with shaped wall thickness, method of making same and optical apparatus
    1.
    发明授权
    Lamp with shaped wall thickness, method of making same and optical apparatus 有权
    具有壁厚的灯，制造方法和光学装置

    公开(公告)号：US07804248B1

    公开(公告)日：2010-09-28

    申请号：US11695425

    申请日：2007-04-02

    申请人： Jim W. Li ,  Christopher Kirk

    发明人： Jim W. Li ,  Christopher Kirk

    IPC分类号： H01J61/30

    CPC分类号： H01J61/30 ,  H01J61/86

    摘要： A lamp, a method of making a bulb for a lamp and an optical apparatus are disclosed. The lamp may include an anode and cathode disposed within a bulb. The bulb may include an optically refractive wall that is rotationally symmetric about an axis. A thickness of the wall may decrease with increase in azimuthal angle between an equatorial plane of the bulb and a point on the bulb's surface. The apparatus may include the lamp and an ellipsoidal reflecting surface. An alternative apparatus may include an ellipsoidal reflecting surface and a lamp having an anode and cathode within a bulb. A gap between the anode and cathode may be proximate a focus of the reflecting surface. The bulb may include an optically refractive wall configured such that a 0.24/0.13 NA power ratio for bulb light coupled to the interior ellipsoidal reflecting surface is between about 3.0 and about 3.3.

    摘要翻译： 公开了一种灯，制造灯泡的方法和光学装置。 灯可以包括设置在灯泡内的阳极和阴极。 灯泡可以包括绕轴线旋转对称的光学折射壁。 壁的厚度可以随着灯泡的赤道平面与灯泡表面上的点之间的方位角的增加而减小。 该装置可以包括灯和椭圆反射表面。 一种替代装置可以包括椭球反射表面和在灯泡内具有阳极和阴极的灯。 阳极和阴极之间的间隙可以靠近反射表面的焦点。 灯泡可以包括被配置为使得耦合到内椭球反射表面的灯泡光的0.24 / 0.13NA功率比在约3.0和约3.3之间的光学折射壁。

    Four-port bidirectional optical circulator
    2.
    发明授权
    Four-port bidirectional optical circulator 失效

    公开(公告)号：US06636651B2

    公开(公告)日：2003-10-21

    申请号：US09877736

    申请日：2001-06-08

    申请人： Jim W. Li

    发明人： Jim W. Li

    IPC分类号： G02B627

    CPC分类号： G02B6/2746 ,  G02B6/272 ,  G02B27/286 ,  H04J14/0208 ,  H04J14/0209 ,  H04J14/0216

    摘要： Four-port optical circulators and apparatus employing such optical circulators are disclosed. The circulators utilize various arrangements of birefringent elements, polarization rotators and non-reciprocal polarization rotators to route optical signals from a first input/output (I/O) port to a second I/O port, from the second I/O port to a third I/O port, from the third I/O port to a fourth, and from the fourth I/O port to the first I/O port. The number of components and their configuration may be varied depending upon requirements of optical isolation, port configuration, manufacturability, yield and cost. Four-port circulators may be incorporated into an apparatus with optical signal conditioners, such as chirped fiber gratings, wavelength converters or optical amplifiers, optically coupled to one or more of the input/output ports. Alternatively, the circulators may be incorporated into a bidirectional add/drop apparatus with bandpass filters coupled to two of the input/output ports.

    LED-based light source with sharply defined field angle
    4.
    发明授权
    LED-based light source with sharply defined field angle 有权
    基于LED的光源具有明确的场角

    公开(公告)号：US08485692B2

    公开(公告)日：2013-07-16

    申请号：US13601276

    申请日：2012-08-31

    申请人： Jim W. Li

    发明人： Jim W. Li

    IPC分类号： F21V7/04 ,  F21V5/04

    CPC分类号： F21V13/04 ,  F21K9/62 ,  F21K9/64 ,  F21Y2115/10 ,  G02B19/0028 ,  G02B19/0066

    摘要： A luminaire with an LED based illumination device having at least one LED includes a transmissive lens element that in combination with reflector is able to generate an output beam with a sharply defined large angle intensity profile. The reflector element is mounted to the LED based illumination device. The transmissive lens element includes first and second interior surfaces and third and fourth exterior surfaces. A portion of light emitted from the LED passes through the first interior surface and the third exterior surface and refracts towards an optical axis of the LED based illumination device, and the reflector element without interacting with the reflector element. Another portion of light emitted from the LED passes through the second interior surface and fourth exterior surface and refracts away from the optical axis to be reflected by the reflector element.

    摘要翻译： 具有至少一个LED的基于LED的照明装置的照明器包括透射透镜元件，其与反射器组合能够产生具有明确限定的大角度强度分布的输出光束。 反射器元件安装到基于LED的照明装置。 透射透镜元件包括第一和第二内表面以及第三和第四外表面。 从LED发射的光的一部分穿过第一内表面和第三外表面并朝向基于LED的照明装置的光轴折射，并且反射器元件不与反射器元件相互作用。 从LED发射的光的另一部分穿过第二内表面和第四外表面并且折射离开光轴以被反射器元件反射。

    LED-BASED LIGHT SOURCE WITH SHARPLY DEFINED FIELD ANGLE
    7.
    发明申请
    LED-BASED LIGHT SOURCE WITH SHARPLY DEFINED FIELD ANGLE 有权
    基于LED的光源与夏普定义的场角

    公开(公告)号：US20120327655A1

    公开(公告)日：2012-12-27

    申请号：US13601276

    申请日：2012-08-31

    申请人： Jim W. Li

    发明人： Jim W. Li

    IPC分类号： F21V13/04

    CPC分类号： F21V13/04 ,  F21K9/62 ,  F21K9/64 ,  F21Y2115/10 ,  G02B19/0028 ,  G02B19/0066

    摘要： A luminaire with an LED based illumination device having at least one LED includes a transmissive lens element that in combination with reflector is able to generate an output beam with a sharply defined large angle intensity profile. The reflector element is mounted to the LED based illumination device. The transmissive lens element includes first and second interior surfaces and third and fourth exterior surfaces. A portion of light emitted from the LED passes through the first interior surface and the third exterior surface and refracts towards an optical axis of the LED based illumination device, and the reflector element without interacting with the reflector element. Another portion of light emitted from the LED passes through the second interior surface and fourth exterior surface and refracts away from the optical axis to be reflected by the reflector element.

    摘要翻译： 具有至少一个LED的基于LED的照明装置的照明器包括透射透镜元件，其与反射器组合能够产生具有明确限定的大角度强度分布的输出光束。 反射器元件安装到基于LED的照明装置。 透射透镜元件包括第一和第二内表面以及第三和第四外表面。 从LED发射的光的一部分穿过第一内表面和第三外表面并朝向基于LED的照明装置的光轴折射，并且反射器元件不与反射器元件相互作用。 从LED发射的光的另一部分穿过第二内表面和第四外表面并且折射离开光轴以被反射器元件反射。