公开(公告)号：EP2120090A4

公开(公告)日：2010-12-29

申请号：EP08721984

申请日：2008-03-13

Applicant: SUMITOMO ELECTRIC INDUSTRIES

Inventor： OKUNO TOSHIAKI

IPC: G02F1/365

CPC classification number: G02F1/353 ,  G02F1/3536 ,  G02F1/365 ,  G02F2201/02

公开(公告)号：EP1389018A3

公开(公告)日：2010-10-27

申请号：EP03018870.0

申请日：2001-02-01

Applicant: Straight Signals LLC

Inventor： Parker, Fred ,  Peterson, Mark

IPC: H04N9/31

CPC classification number: G02B6/0028 ,  G02B6/0006 ,  G02B6/0068 ,  G02B6/06 ,  G02B6/3644 ,  G02B6/3672 ,  G02B6/4249 ,  G02B6/4298 ,  G02F1/133524 ,  G02F1/133609 ,  G02F2001/133622 ,  G02F2001/133628 ,  G02F2201/02 ,  G03B21/14 ,  G03B21/2033 ,  G03B21/2093 ,  G03B33/06 ,  G03B33/12 ,  G09G3/3413 ,  G09G2310/0235 ,  H04N5/66 ,  H04N5/7441 ,  H04N5/7458 ,  H04N9/12 ,  H04N9/3155 ,  H04N9/3164

Abstract: An image projection system for a colour display device, comprising:a light source (32) including, a substrate (74), a first set of LEDs (72) disposed on the substrate for generating first light having first wavelength, a second set of LEDs (72) co-disposed on the substrate for generating second light having a second wavelength, and a second set of LEDs (72) co-disposed on the substrate for generating second light having a second wavelength, the first, second, and third wavelengths being different wavelengths; a light guide (38) including a first set of optical fibres (76) optically coupled to the first set of LEDs to propagate the first light to a first imaging device (44), a second set of optical fibres (76) optically coupled to the second set of LEDs to propagate the second light to a second imaging device (44), and a third set of optical fibres (76) optically coupled to the third set of LEDs to propagate the third light to a third imaging device (44); a display controller (56) adapted to receive colour image data from a data source (58) and convert the colour image to at least first, second and third colour data for driving the respective first, second and third imaging devices to project respective first, second and third images; and a combiner (46) adapted for receiving simultaneously the first, second and third images from the respective first, second and third imaging devices, and combining the first, second and third images to form a composite image.

公开(公告)号：EP2120090A1

公开(公告)日：2009-11-18

申请号：EP08721984.6

申请日：2008-03-13

Applicant: Sumitomo Electric Industries, Ltd.

Inventor： OKUNO, Toshiaki

IPC: G02F1/365

CPC classification number: G02F1/353 ,  G02F1/3536 ,  G02F1/365 ,  G02F2201/02

Abstract: Provided is a wavelength converter having a simple and low-cost structure. The wavelength converter generates converted light having a wavelength different from that of input light. The wavelength converter includes (1) a pump light source that outputs pump light, (2) an optical multiplexer that combines and outputs input light and the pump light, (3) a first optical fiber that receives and guides the input light and the pump light that have been combined and output by the optical multiplexer and generates converted light using a nonlinear optical phenomenon that occurs while the first optical fiber guides the input light and the pump light, the first optical fiber being coiled, and (4) zero-dispersion wavelength adjusting means that adjusts a zero-dispersion wavelength of the first optical fiber.

Abstract translation: 提供了一种具有简单且低成本结构的波长转换器。 波长转换器产生具有与输入光不同的波长的转换光。 波长转换器包括（1）输出泵浦光的泵浦光源，（2）组合并输出输入光和泵浦光的光复用器，（3）接收并引导输入光和泵的第一光纤 由光复用器组合并输出的光，使用在第一光纤引导输入光和泵浦光，第一光纤被卷绕时发生的非线性光学现象产生转换光，以及（4）零色散 波长调节装置，其调节第一光纤的零色散波长。

公开(公告)号：EP1855155A4

公开(公告)日：2008-04-02

申请号：EP06730243

申请日：2006-03-28

Applicant: SUMITOMO ELECTRIC INDUSTRIES

Inventor： OKUNO TOSHIAKI

IPC: G02F1/365

CPC classification number: G02F1/365 ,  G02F1/353 ,  G02F2001/3528 ,  G02F2201/02 ,  G02F2203/17

Abstract: There is provided a light source device having a structure for stably providing a wide-band pulse light having a wavelength spectrum of excellent flatness over a wide band. The light source device uses, as a seed light source, a short-pulse light source having such excellent output pulse characteristic that a frequency band width from the peak to lowered value by 10 dB or 20 dB is 5 THz or above. Furthermore, the light source device includes a wide-band light generation fiber appropriate for combination with such a short-pulse light source. The wide-band light generation fiber inputs a pulse light from a pulse light source and generates a wide-band pulse light by using non-linear optical phenomenon. With this configuration, it is possible to obtain a wide-band pulse light having a wavelength spectrum in which the region having power fluctuation suppressed to 6 dB or below exists over 100 nm or above.

Abstract translation: 提供了一种光源装置，其具有用于稳定地提供在宽带宽范围内具有优异平坦度的波长谱的宽带脉冲光的结构。 光源装置使用具有如下优异的输出脉冲特性的短脉冲光源作为种子光源：从10dB或20dB的峰值到降低值的频带宽度为5THz或更高。 此外，光源装置包括适于与这种短脉冲光源组合的宽带光产生光纤。 宽带光产生光纤从脉冲光源输入脉冲光并通过使用非线性光学现象产生宽带脉冲光。 利用该配置，可以获得具有波长谱的宽带脉冲光，其中功率波动被抑制到6dB或更低的区域存在超过100nm或更高。

公开(公告)号：EP1697793A1

公开(公告)日：2006-09-06

申请号：EP04804987.8

申请日：2004-12-22

Applicant: Koheras A/S

Inventor： WADSWORTH, William

IPC: G02F1/365

CPC classification number: G02F1/365 ,  G02F1/353 ,  G02F1/395 ,  G02F2001/3528 ,  G02F2201/02 ,  G02F2202/32 ,  H01S3/0627

Abstract: The invention relates to the field of light sources and in particular to sources of light of wavelengths extending across a broad spectrum of hundreds of nanometres. An object of the invention is to provide a relatively compact and inexpensive source of light of wavelengths spread over a broad spectrum. The light source comprises a laser (4) , which operates at or near its fundamental wavelength and produces pulses of a duration longer than 0.5 ns, and a micro-structured optical fibre (9) arranged to guide the pulses, wherein the light is generated by the pulses in the fibre (9) . The invention further relates to a method of generating a light of a spectrum. The invention may e.g. be useful in applications such as spectral testing of fibre components and spectral analysis of chemical and biological samples.

公开(公告)号：EP1595181A1

公开(公告)日：2005-11-16

申请号：EP04703453.3

申请日：2004-01-20

Applicant: Koninklijke Philips Electronics N.V.

Inventor： HUCK, Hubertina, P., M. ,  HIKMET, Rifat, A., M.

IPC: G02F1/33

CPC classification number: G02B6/0056 ,  G02B5/3008 ,  G02F1/133615 ,  G02F1/13362 ,  G02F1/13363 ,  G02F2201/02 ,  G02F2202/022

Abstract: An illumination system (8) comprises an optical waveguide (18) which is made from optically transparent components and has four end faces (10, 10'). A light source (12) whose light is coupled into the optical waveguide (18) via one of the end faces (10), is situated opposite this end face (10). The optical waveguide (18) has a light guide (30). A number of fibres (34) are attached to a surface (32) of the light guide (30). The fibres (34) have birefringent properties. A preferred method of providing the birefringent properties is to stretch fibres (34) of a suitable polymer plastic material in their longitudinal direction. The light from the light source (12) will be polarized by the fibres (34) and polarised light will be outcoupled from the optical waveguide (18) via an exit surface (16). The illumination system (8) may be used for front or back lightning of LCD panels for e.g. mobile phones, PDA's, etc.

公开(公告)号：EP1368701B1

公开(公告)日：2004-08-11

申请号：EP02720094.8

申请日：2002-03-15

Applicant: THE UNIVERSITY OF SOUTHAMPTON

Inventor： RICHARDSON, David John ,  LEE, Ju Han ,  IBSEN, Morten ,  PETROPOULOS, Periklis ,  THE, Peh Choing

IPC: G02F1/35 ,  H04B10/18 ,  H04J14/02

CPC classification number: H04B10/2507 ,  G02F1/3515 ,  G02F2201/02 ,  G02F2201/307

公开(公告)号：EP1279065A1

公开(公告)日：2003-01-29

申请号：EP01925717.9

申请日：2001-05-03

Applicant: Blazephotonics Limited

Inventor： BIRKS, Timothy ,  WADSWORTH, William, John ,  RUSSELL, Philip, St. John

IPC: G02F1/365 ,  G02F1/35

CPC classification number: G02F1/365 ,  G02F2001/3509 ,  G02F2201/02

Abstract: A nonlinear optical device, comprises a source of input light having a first spectrum and an optical fibre 10 arranged so that in use the light propagates through the fibre 10, the optical fibre 10 comprises a tapered region including a waist 30, the waist 30 having a diameter smaller than 10 microns for a length of more than 20 mm, wherein the propagating light is converted by nonlinear optical processes into output light having a spectrum different from the first spectrum.

公开(公告)号：EP0760111B1

公开(公告)日：2002-08-21

申请号：EP95919514.0

申请日：1995-05-19

Applicant: UNIVERSITY OF SOUTHAMPTON

Inventor： LAMING, Richard, Ian ,  LOH, Wei-Hung ,  PAYNE, David, Neil ,  ZERVAS, Michael, Nickolaos

IPC: G02F1/35 ,  H01S3/098 ,  H01S3/06

CPC classification number: H01S3/06708 ,  G02B2006/2839 ,  G02F1/3523 ,  G02F2201/02 ,  G02F2202/06 ,  G02F2203/055 ,  H01S3/06737 ,  H01S3/0675 ,  H01S3/06754 ,  H01S3/08022 ,  H01S3/08027 ,  H01S5/141 ,  H01S5/146

公开(公告)号：EP1048971A1

公开(公告)日：2000-11-02

申请号：EP00303626.6

申请日：2000-04-28

Applicant: JDS Uniphase Inc.

Inventor： Paiam, Reza

IPC: G02F1/065 ,  G02B6/125

CPC classification number: G02B6/3576 ,  G02B5/28 ,  G02B6/122 ,  G02B6/1221 ,  G02B6/125 ,  G02B6/266 ,  G02B6/2813 ,  G02B6/29358 ,  G02B6/2937 ,  G02B6/29395 ,  G02B6/3512 ,  G02B6/355 ,  G02B6/3594 ,  G02B26/001 ,  G02B2006/121 ,  G02F1/0147 ,  G02F1/065 ,  G02F1/3132 ,  G02F1/3136 ,  G02F1/3137 ,  G02F2001/217 ,  G02F2201/02 ,  G02F2203/48

Abstract: A multi-mode interference coupler is disclosed for coupling light between ports. The MMI coupler is a planar waveguide having a first input port for launching light into a core of the planar waveguide which has first refractive index n 1 . The waveguide is dimensioned to have a response that confines light launched therein to a single mode in one dimension, and multi-mode in another dimension. Two other ports are provided for receiving light launched into and propagating through the core from the input port. A polymer cladding of a second material having a refractive index n 2 covers at least a portion of the core. A heater is provided and is thermally coupled to the cladding for heating the cladding when a control signal is applied.

Abstract translation: 本发明涉及一种可变滤波器，其可用于滤波输入信号，衰减输入信号或在一个配置中将输入信号从一个路径切换到另一个路径。 本发明已经发现，通过使用具有高膨胀系数的弹性体材料，可以与用于局部地改变弹性体材料的温度的装置一起作为用于移动内部的反射表面的致动器来产生精确和经济的可变滤光器 滤光片。 致动器可以例如受控的方式操作，以实现用于切换或衰减光信号的反射表面的倾斜，或改变部分反射表面之间的谐振腔的谐振波长。 根据本发明，提供一种包括输入端口和输出端口的可变滤光器; 设置成接收从输入端口发射的光束的第一至少部分反射表面; 用于相对于输入端口支撑和改变至少部分反射表面的位置的弹性体材料; 加热器，用于向所述弹性体材料施加可变量的热量以相对于所述输入端口移动或枢转所述至少部分反射表面; 以及用于控制加热器并提供信号以应用可变量的热量的控制装置。