公开(公告)号：US06396635B2

公开(公告)日：2002-05-28

申请号：US09902740

申请日：2001-07-12

Applicant: Alan D. Kathman ,  Michael R. Feldman

Inventor： Alan D. Kathman ,  Michael R. Feldman

IPC: G02B502

CPC classification number: G02B5/0252 ,  B23K26/06 ,  B23K26/064 ,  B23K26/0643 ,  B23K26/0648 ,  B23K26/066 ,  B23K26/0665 ,  G02B5/0278 ,  G02B5/1819 ,  G02B5/1857 ,  G02B5/32 ,  G02B19/0014 ,  G02B19/0057 ,  G02B19/0095 ,  G02B27/09 ,  G02B27/0927 ,  G02B27/0944 ,  G03F7/70058 ,  G03H1/0236 ,  G03H2001/085 ,  G03H2001/303 ,  H04B10/50 ,  Y10S359/90

Abstract: A beam homogenizer that minimizes undesired intensity variations at the output plane caused by sharp breaks between facets in previous embodiments. The homogenizer includes a hologram made up of irregularly patterned diffractive fringes. An input beam illuminates at least part of the hologram. The hologram transmits a portion of the input beam onto an output plane. In doing so, the energy of the input beam is spatially redistributed at the output plane into a homogenized output beam having a preselected spatial energy distribution at the output plane. Thus, the illuminated portion of the output plane has a shape predetermined by the designer of the homogenizer.

Abstract translation: 一种光束均化器，其最小化在先前实施例中由小面之间的尖锐断裂引起的在输出平面处的不期望的强度变化。 均化器包括由不规则图案化的衍射条纹构成的全息图。 输入光束照亮全息图的至少一部分。 全息图将输入光束的一部分传输到输出平面上。 在这样做时，输入光束的能量在输出平面处在空间上再分布成具有在输出平面处的预选空间能量分布的均匀化输出光束。 因此，输出平面的照明部分具有由均化器的设计者预定的形状。

公开(公告)号：US06374004B1

公开(公告)日：2002-04-16

申请号：US09418022

申请日：1999-10-14

Applicant: Hongtao Han ,  Michael R. Feldman

Inventor： Hongtao Han ,  Michael R. Feldman

IPC: G02B612

CPC classification number: G02B6/4249 ,  G02B6/4206 ,  G02B6/4214 ,  G02B6/4224 ,  G02B6/4231 ,  G02B6/4244 ,  G02B6/4245 ,  G02B6/4251 ,  G02B6/426 ,  G02B6/4269 ,  G02B6/4278 ,  G02B6/4286 ,  G02B6/4292

Abstract: An optical subassembly includes an opto-electronic device, an optics block and a spacer, separate from the optics block and providing spacing between the opto-electronic device and the optics block. The opto-electronic device, the optics block and the spacer are aligned and bonded together. This subassembly is particularly useful when coupling light between the opto-electronic device and a fiber. The optical subassembly may also include an opto-electronic device, an optics block and a sealing structure surrounding the opto-electronic device. The opto-electronic device, the optics block and the sealing structure are aligned and bonded together.

公开(公告)号：US6104690A

公开(公告)日：2000-08-15

申请号：US274310

申请日：1999-03-23

Applicant: Michael R. Feldman ,  Alan D. Kathman ,  W. Hudson Welch

Inventor： Michael R. Feldman ,  Alan D. Kathman ,  W. Hudson Welch

IPC: G02B5/18 ,  G02B6/12 ,  G02B6/42 ,  G02B6/43 ,  G11B7/12 ,  G11B7/135 ,  G11B7/22 ,  H01L31/12 ,  H01S5/00 ,  G11B7/00

CPC classification number: G11B7/1353 ,  G02B6/4231 ,  G02B6/4232 ,  G11B7/123 ,  G11B7/1372 ,  G11B7/1374 ,  G11B7/22 ,  G02B2006/12102 ,  G02B2006/12107 ,  G02B6/4214 ,  G02B6/4224 ,  G02B6/4238 ,  G02B6/4239 ,  G02B6/43 ,  H01S5/005

Abstract: An integrated optical apparatus includes an optically transparent substrate with a light source and a detector mounted adjacent thereto. The substrate includes an optical element in a transmit path from the light source to a remote target. The optical element splits the light into more than one beam. A detector receives beams reflected by the target. All optical elements needed to create the more then one beam, direct the more than one beam onto the target and direct the more than one beam from the target to the detector are on the substrate and/or any structure bonded to the substrate. Preferably, the optical element provides sufficient separation between the more than one beam such that each beam is delivered to a unique respective light detecting element of the detector. The return path from the remote target to the detector may include an optical element for each beam or no optical elements. An additional substrate may be included and bonded to the substrate. The active elements may be bonded to a bottom surface of the substrate, either directly or via spacer blocks, or may be provided on a support substrate, which is then bonded, either directly or via spacer blocks, to the substrate.

公开(公告)号：US5938308A

公开(公告)日：1999-08-17

申请号：US904556

申请日：1997-08-04

Applicant: Michael R. Feldman ,  Alan D. Kathman

Inventor： Michael R. Feldman ,  Alan D. Kathman

IPC: G02B5/18 ,  G02B5/32 ,  G02B27/20 ,  G02B27/58 ,  G03B21/00

CPC classification number: G02B27/20 ,  G02B27/58 ,  G02B5/1842 ,  G02B5/1871 ,  G02B5/32

Abstract: An improved optical system is disclosed for projecting light in the form of an image to a remote target. The laser light source and a holographic optical element are mounted together in optical alignment. The optical element is created using iterative discrete computer encoding for optimum efficiency. In alternate embodiments, the diffractive optical element has a collimating lens encoded into the grating levels and it also performs soft aperture circularizing using either amplitude or phase control over the coherent light. An embossed diffractive optical element laminated to an injection-molded refractive element is also disclosed.

Abstract translation: 公开了一种改进的光学系统，用于将图像形式的光投射到远程目标。 激光光源和全息光学元件以光学对准的方式安装在一起。 使用迭代离散计算机编码创建光学元件，以获得最佳效率。 在替代实施例中，衍射光学元件具有编码为光栅级的准直透镜，并且还使用对相干光进行幅度或相位控制来执行软孔径圆化。 还公开了层压到注射成型的折射元件上的压花衍射光学元件。

公开(公告)号：US5923796A

公开(公告)日：1999-07-13

申请号：US842846

申请日：1997-04-17

Applicant: Michael R. Feldman ,  Iwona Turlik ,  Gretchen M. Adema

Inventor： Michael R. Feldman ,  Iwona Turlik ,  Gretchen M. Adema

IPC: G02B6/10 ,  G02B6/42 ,  G02B6/43 ,  H01L23/48 ,  G03H1/00

CPC classification number: H01L24/73 ,  G02B6/43 ,  H01L23/48 ,  G02B6/4232 ,  H01L2224/16225 ,  H01L2224/73253 ,  H01L2924/01006 ,  H01L2924/01013 ,  H01L2924/01014 ,  H01L2924/01033 ,  H01L2924/01074 ,  H01L2924/10253 ,  H01L2924/10329 ,  H01L2924/12041 ,  H01L2924/12042 ,  H01L2924/12043 ,  H01L2924/14 ,  H01L2924/15192

Abstract: A multichip module having high density optical and electrical interconnections between integrated circuit chips includes a substrate overlaying an array of integrated circuit chips. An optical transmitter generates a first optical beam through the substrate and an optical detector receives a second optical beam through the substrate. A hologram is positioned in the path of at least one of the first and second optical beams. An array of electrical contact pads is located on the substrate corresponding to the array of electrical contact pads on the respective integrated circuit chips. A pattern of electrical interconnection lines is located on the substrate for electrically interconnecting the integrated circuit chips. A solder bump between electrical contact pads on the substrate and on the integrated circuit chips establish electrical connections between the substrate and the integrated circuit chips, and also facilitate alignment of the integrated circuit chips with respect to the substrate. The optical transmitter and detector may be mounted on/in the substrate or on/in the integrated circuit chips. The optical transmitter and detector may also be used to provide optical connections external to the microelectronic module, using a holographic substrate to optically link modules. The substrate may also be used to establish optical alignment of the hologram to an underlying optical emitter and/or optical detector without establishing electrical connections thereto.

公开(公告)号：US5912872A

公开(公告)日：1999-06-15

申请号：US18891

申请日：1998-02-05

Applicant: Michael R. Feldman ,  Alan D. Kathman ,  W. Hudson Welch

Inventor： Michael R. Feldman ,  Alan D. Kathman ,  W. Hudson Welch

IPC: G02B5/18 ,  G02B6/12 ,  G02B6/42 ,  G02B6/43 ,  G11B7/12 ,  G11B7/135 ,  G11B7/22 ,  H01L31/12 ,  H01S5/00 ,  G11B7/00

CPC classification number: G11B7/1353 ,  G02B6/4231 ,  G02B6/4232 ,  G11B7/123 ,  G11B7/1372 ,  G11B7/1374 ,  G11B7/22 ,  G02B2006/12102 ,  G02B2006/12107 ,  G02B6/4214 ,  G02B6/4224 ,  G02B6/4238 ,  G02B6/4239 ,  G02B6/43 ,  H01S5/005

Abstract: An integrated optical apparatus includes an optically transparent substrate with a light source and a detector mounted adjacent thereto. The substrate includes an optical element in a transmit path from the light source to a remote target. The optical element splits the light into more than one beam. A detector receives beams reflected by the target. All optical elements needed to create the more then one beam, direct the more than one beam onto the target and direct the more than one beam from the target to the detector are on the substrate and/or any structure bonded to the substrate. Preferably, the optical element provides sufficient separation between the more than one beam such that each beam is delivered to a unique respective light detecting element of the detector. The return path from the remote target to the detector may include an optical element for each beam or no optical elements. An additional substrate may be included and bonded to the substrate. The active elements may be bonded to a bottom surface of the substrate, either directly or via spacer blocks, or may be provided on a support substrate, which is then bonded, either directly or via spacer blocks, to the substrate.

Abstract translation: 集成光学装置包括具有光源的光学透明基板和与其相邻安装的检测器。 衬底包括从光源到远程目标的发射路径中的光学元件。 光学元件将光分成多于一个的光束。 检测器接收由目标物体反射的光束。 所需的所有光学元件需要产生多于一个的光束，将不止一个光束引导到目标物上，并引导来自目标的多于一个光束到检测器处于衬底和/或结合到衬底的任何结构上。 优选地，光学元件在多于一个光束之间提供足够的间隔，使得每个光束被传送到检测器的独特的相应的光检测元件。 从远程目标到检测器的返回路径可以包括用于每个光束的光学元件或者不包括光学元件。 可以包括另外的衬底并结合到衬底。 有源元件可以直接地或通过间隔块结合到衬底的底表面，或者可以设置在支撑衬底上，然后将其直接或经由间隔块结合到衬底上。

公开(公告)号：US5728324A

公开(公告)日：1998-03-17

申请号：US381169

申请日：1995-01-31

Applicant: William H. Welch ,  Robert D. Te Kolste ,  Michael R. Feldman

Inventor： William H. Welch ,  Robert D. Te Kolste ,  Michael R. Feldman

IPC: B29C33/30 ,  B29C45/00 ,  B29C45/37 ,  B29D11/00 ,  G02B5/18 ,  G02B27/02

CPC classification number: B29D11/00769 ,  B29C45/372 ,  B29D11/00 ,  B29D11/00269 ,  B29D11/00432 ,  G02B5/1852 ,  B29C33/303 ,  B29C45/00 ,  B29L2011/005 ,  B29L2031/7224

Abstract: A method of fabricating a diffractive optical element includes the steps of: etching a negative of a desired multi-level diffraction pattern onto a molding surface of a quartz master element using photolithography, assembling the master element as a portion of a mold, and injecting a plastic molding composition into the mold and against the molding surface of the master element to injection mold a diffractive optical element, whereby the optical element has the desired diffraction pattern on its surface. The diffraction pattern is preferably formed on the quartz master using VLSI photolithography.

公开(公告)号：US5606434A

公开(公告)日：1997-02-25

申请号：US269919

申请日：1994-06-30

Applicant: Michael R. Feldman ,  Bob T. Kolste ,  W. Hudson Wlech ,  Hedong Yang

Inventor： Michael R. Feldman ,  Bob T. Kolste ,  W. Hudson Wlech ,  Hedong Yang

IPC: G02B5/18 ,  G02B5/32 ,  G02B6/26 ,  G02B6/42 ,  G02B27/00 ,  G03H1/02 ,  G03H1/08

CPC classification number: G02B27/0037 ,  G02B27/4272 ,  G02B27/4288 ,  G02B27/4294 ,  G02B5/1876 ,  G02B5/188 ,  G02B5/189 ,  G02B5/32 ,  G02B6/262 ,  G02B6/4206

Abstract: An aromatic optical system that preferably includes a light source for emitting light therefrom, an achromatic optical element positioned to receive light emitted from the light source, and an optical detector positioned to receive and detect light passing through the optical element. The achromatic optical element preferably includes a substrate having opposing sides, a first computer generated hologram positioned on one side of the substrate and adapted to receive light emitted from the light source, and a second computer generated hologram positionally aligned on the opposite side of the substrate and adapted to receive light passing through the substrate from the first hologram at a predetermined location thereon. A method of forming an achromatic diffractive optical element is also provided which includes the steps of determining a first data set comprising a plurality of discrete phase values and discrete transition values and selecting from the first data set phase values and transition values to form a second data set for defining first and second holograms. A discrete value of the second data set is then replaced by another discrete value from the first data set. A change of an optical system error function is then determined responsive to the replacement in the second data set. If the error function is reduced, the new data set is retained.

Abstract translation: 优选地包括用于从其发射光的光源的芳族光学系统，定位成接收从光源发射的光的消色差光学元件，以及定位成接收和检测通过光学元件的光的光学检测器。 消色差光学元件优选地包括具有相对侧面的基板，第一计算机产生的全息图位于基板的一侧上并且适于接收从光源发射的光，以及第二计算机产生的全息图，位于对准在基板的相对侧 并且适于在其上的预定位置处接收从第一全息图穿过基板的光。 还提供了一种形成消色差衍射光学元件的方法，其包括以下步骤：确定包括多个离散相位值和离散转变值的第一数据集，并从第一数据集相位值和转换值中选择形成第二数据 用于定义第一和第二全息图。 然后，第二数据集的离散值被来自第一数据集的另一个离散值替换。 然后响应于第二数据组中的替换来确定光学系统误差函数的改变。 如果误差函数减少，则保留新的数据集。