-
公开(公告)号：US20230265978A1
公开(公告)日：2023-08-24
申请号：US18170221
申请日：2023-02-16
申请人： Frank Shum
发明人： Frank Shum
CPC分类号： F21K9/233 , F21K9/237 , F21K9/68 , F21S8/088 , F21V19/006 , F21Y2115/10
摘要： Apparatus and associated methods relate to an energy efficient and pollution reducing post top lamp. In an illustrative example, a replaceable light unit (RLU) includes a LED package distributed about a first axis of the RLU. The LED package, for example, may emit a light being redirected by a first optical element to generate a first optical distribution along a first optical axis in a first direction, the first optical axis being substantially parallel to the first axis. The first optical distribution may be, for example, reflected by a second optical element such that at least a portion of the light in the first optical distribution may be reflected into a second optical distribution. For example, at least fifty percent of the light in the second optical distribution may be greater than fifty degrees from the first optical axis. Various embodiments may advantageously conserve energy and/or reduce light pollution.
-
公开(公告)号：US20200158324A1
公开(公告)日：2020-05-21
申请号：US16713452
申请日：2019-12-13
申请人： Frank Shum
发明人： Frank Shum
IPC分类号： F21V29/77 , H05B45/395 , H05B45/44 , H05B45/37 , H05B45/10 , F21K9/69 , F21V23/00 , F21K9/235 , F21V29/74 , F21V29/83 , F21K9/238 , F21V29/71
摘要： Apparatus and associated methods relate to development of a LED system with high thermal dissipation power relative to the system weight by the inclusion of open regions. The open regions reduce the weight of the optical system while improving airflow. Associated optics are described to efficiently and evenly distribute the light from an LED by tailoring the optical distribution. In addition, circuitry and methods are described to allow for the LED system to operate with existing power sources such as ballast or offline AC voltage sources or both.
-
公开(公告)号：US08076831B2
公开(公告)日：2011-12-13
申请号：US12938003
申请日：2010-11-02
申请人： Frank Shum
发明人： Frank Shum
IPC分类号： H01J5/16
摘要： An integrated multi-layer apparatus and method of producing the same is disclosed. The apparatus comprises an LED, a beam shaping layer, and a refracting layer between the beam shaping layer from the LED. The refracting layer may have an index of refraction lower than the index of refraction of the LED and the beam shaping layer.
摘要翻译： 公开了一种集成多层装置及其制造方法。 该装置包括LED，光束整形层和来自LED的光束成形层之间的折射层。 折射层可以具有低于LED和光束成形层的折射率的折射率。
-
公开(公告)号：US07839062B2
公开(公告)日：2010-11-23
申请号：US12201936
申请日：2008-08-29
申请人： Frank Shum
发明人： Frank Shum
IPC分类号： H01J5/16
摘要： An integrated multi-layer apparatus and method of producing the same is disclosed. The apparatus comprises an LED, a beam shaping layer, and a refracting layer between the beam shaping layer from the LED. The refracting layer may have an index of refraction lower than the index of refraction of the LED and the beam shaping layer.
摘要翻译： 公开了一种集成多层装置及其制造方法。 该装置包括LED，光束整形层和来自LED的光束成形层之间的折射层。 折射层可以具有低于LED和光束成形层的折射率的折射率。
-
公开(公告)号：USD603554S1
公开(公告)日：2009-11-03
申请号：US29324544
申请日：2008-09-15
申请人： Frank Shum , Joerg Student
设计人： Frank Shum , Joerg Student
-
公开(公告)号：US06407854B1
公开(公告)日：2002-06-18
申请号：US09519157
申请日：2000-03-06
申请人： Frank Shum
发明人： Frank Shum
IPC分类号： H01S300
CPC分类号： H04B10/296 , H01S3/06754 , H01S3/10015 , H01S3/1301
摘要： An apparatus and method are provided for amplifying a signal having several multiplexed channels of different wavelengths. In one embodiment, an amplifier 100 is provided having a doped fiber 120 coupled to an input 105, a pump 145 coupled to the doped fiber to provide an output to amplify the signal therein and a control system 130 for controlling the pump. The control system 130 has a detector 170 for measuring power of the signal and a controller 180 for adjusting power to the pump 145 based on predetermined criteria and the measured signal power. The pump power is adjusted as a linear function of the signal power by including within the predetermined criteria a multiplier by which the signal power is multiplied, and an offset that is added to the product of the multiplier and the signal power to ensure that the power applied to the pump 145 is non-zero even for zero signal power. Preferably, the controller 180 can automatically adjust pump power to provide equal and constant gain to each channel even when channels are added or removed. More preferably, the controller 180 can provide a transient response of less than 200&mgr;s when channels are added or removed.
摘要翻译： 提供了一种用于放大具有不同波长的多路复用信道的信号的装置和方法。 在一个实施例中，提供放大器100，其具有耦合到输入端105的掺杂光纤120，耦合到掺杂光纤的泵145，以提供放大信号的输出和用于控制泵的控制系统130。 控制系统130具有用于测量信号功率的检测器170和用于根据预定标准和所测量的信号功率来调节对泵145的功率的控制器180。 泵浦功率被调整为信号功率的线性函数，通过在预定标准内包括信号功率相乘的乘法器和附加到乘法器和信号功率的乘积的偏移，以确保功率 即使对于零信号功率，施加到泵145也是非零的。 优选地，即使在添加或移除通道时，控制器180可以自动调节泵功率以向每个通道提供相等和恒定的增益。 更优选地，当添加或移除通道时，控制器180可以提供小于200mus的瞬时响应。
-
公开(公告)号：US5165226A
公开(公告)日：1992-11-24
申请号：US743533
申请日：1991-08-09
申请人： Peter Newton , Alex Prociw , Frank Shum
发明人： Peter Newton , Alex Prociw , Frank Shum
CPC分类号： F23R3/12
摘要： An annular combustor liner (30) includes louvers (52, 54, 56, 70, 72) for inducing the formation of a single toroidal vortex (68) adjacent a domed upstream portion (34) of the liner (30).
-
公开(公告)号：US20220364686A1
公开(公告)日：2022-11-17
申请号：US17663070
申请日：2022-05-12
申请人： Frank Shum
发明人： Frank Shum
摘要： Apparatus and associated methods relate to an energy efficient and pollution reducing post top lamp. In an illustrative example, a replaceable light unit (RLU) includes a LED package distributed about a first axis of the RLU. The LED package, for example, may emit a light being redirected by a first optical element to generate a first optical distribution along a first optical axis in a first direction, the first optical axis being substantially parallel to the first axis. The first optical distribution may be, for example, reflected by a second optical element such that at least a portion of the light in the first optical distribution may be reflected into a second optical distribution. For example, at least fifty percent of the light in the second optical distribution may be greater than fifty degrees from the first optical axis. Various embodiments may advantageously conserve energy and/or reduce light pollution.
-
公开(公告)号：US10697612B2
公开(公告)日：2020-06-30
申请号：US15968924
申请日：2018-05-02
申请人： Frank Shum
发明人： Frank Shum
IPC分类号： F21V5/04 , F21Y115/10
摘要： An illumination apparatus has a light source having a planar emission surface and a centroid, wherein the surface has a maximum distance L between opposite edges. A lens has an incident surface and an optical axis. In cross section along the optical axis, the incident surface, at a first incident point, is concave or flat to light emitted at a normal from the emissive surface. At a second incident point, the surface an instantaneous angle of curvature, relative to the emissive surface, with an absolute value of no more than 25 degrees to light emitted at an oblique angle greater than 75 degrees from the emissive surface normal. Considered in parallel to the optical axis, the second incident point is within a less than 0.2 L from the first plane. In an orthogonal direction to the optical axis, the second incident point lies within less than 2 L from the centroid.
-
公开(公告)号：US08146365B2
公开(公告)日：2012-04-03
申请号：US11763119
申请日：2007-06-14
申请人： Frank Shum , Jeffrey Verhiel
发明人： Frank Shum , Jeffrey Verhiel
CPC分类号： F23D11/24 , F23D11/108 , F23D11/12 , F23R3/10 , F23R3/28
摘要： A fuel injection nozzle for a gas turbine engine has a central fuel ejection nozzle and a plurality of airflow passages within the spray tip that include a first and second group of circumferentially spaced apart fuel-spray forming airflow passages disposed on opposite sides of a transverse axis and oriented towards each other such as to produce opposed fuel spray shaping air jets which generate a shaped final fuel spray.
摘要翻译： 用于燃气涡轮发动机的燃料喷射喷嘴具有中心燃料喷射喷嘴和在喷嘴内的多个气流通道，其包括设置在横向轴线的相对侧上的第一组和第二组周向间隔开的燃料喷雾形成气流通道 并且朝向彼此，以产生产生成形的最终燃料喷雾的相对的燃料喷射成形空气射流。
-
-
-
-
-
-
-
-
-
搜索结果
45 条记录 (耗时 0.014 秒)
