Display device
    91.
    发明申请
    Display device 审中-公开
    显示设备

    公开(公告)号:US20070171375A1

    公开(公告)日:2007-07-26

    申请号:US10590809

    申请日:2005-02-22

    IPC分类号: G03B21/26

    CPC分类号: G03B21/26 H04N9/3129

    摘要: There is provided a laser display device that is applicable to mobile equipment, which device prevents laser light from being applied to a region other than a screen. A laser display device (100) is provided with a laser projection part (101) comprising at least one coherent light source and an optical system for converting light from the coherent light source into video, a screen (103) onto which the light emitted from the laser projection part (101) is projected, and an arm (102) that is attached to the screen (103) and supports the laser projection part (101), and the movable range and movable direction of the laser projection part (101) are limited by the arm (102) so that light from the laser projection part (101) is applied to only the screen (103).

    摘要翻译: 提供了可应用于移动设备的激光显示装置,该装置防止激光被施加到除了屏幕之外的区域。 激光显示装置(100)具有激光投射部(101),该激光投射部包括至少一个相干光源和用于将来自相干光源的光转换成视频的光学系统;屏幕(103) 激光投影部(101)突出,并且安装在荧光屏(103)上并支撑激光投影部(101)的臂(102)以及激光投影部(101)的可动范围和可动方向, 由臂(102)限制,使得来自激光投影部(101)的光仅被施加到屏幕(103)。

    Semiconductor laser device and laser projector
    92.
    发明申请
    Semiconductor laser device and laser projector 有权
    半导体激光设备和激光投影机

    公开(公告)号:US20070165685A1

    公开(公告)日:2007-07-19

    申请号:US10584091

    申请日:2004-12-21

    IPC分类号: H01S3/00 H01S5/00 H01S3/097

    摘要: According to the present invention, in a semiconductor laser device (10) having different facet reflectivities, an electrode disposed on a stripe ridge (107a) is divided into four electrode parts (1), (2), (3), and (4), and a larger injection current is injected to an electrode part that is closer to a light emission facet side. According to this semiconductor laser device, a carrier density distribution in an active layer that is opposed to the stripe ridge can be matched to a light intensity distribution in the active layer, thereby preventing degradation in high output characteristic due to destabilization of transverse mode and reduction in gain which are caused by spatial hole burning.

    摘要翻译: 根据本发明,在具有不同面反射率的半导体激光器件(10)中,设置在条纹脊(107a)上的电极被分成四个电极部分(1),(2),(3)和( 4),并且将更大的注入电流注入到更靠近发光小面侧的电极部分。 根据该半导体激光器件,与有源层相对的有源层中的载流子密度分布可以与有源层中的光强度分布相匹配,从而防止由于横模的不稳定性而导致的高输出特性的劣化和还原 在空间孔燃烧引起的增益。

    Laser light source, and two-dimensional image forming device
    93.
    发明申请
    Laser light source, and two-dimensional image forming device 有权
    激光光源,二维成像装置

    公开(公告)号:US20070147456A1

    公开(公告)日:2007-06-28

    申请号:US10582334

    申请日:2004-12-09

    IPC分类号: H01S5/00

    摘要: A laser light source (10) of the present invention is provided with plural semiconductor lasers (1), and a waveguide (3) in which light beams emitted from the respective semiconductor lasers (1) propagate, and the plural semiconductor lasers are disposed at an upper end of an incident end face (31) of the waveguide so that the light beams (4) emitted from the respective semiconductor lasers enter the waveguide from the end face (31) of the waveguide and are emitted from another end face (32) of the waveguide. Thereby, it is possible to realize a high-power and compact laser light source which is able to output a light beam having a uniform light intensity distribution.

    摘要翻译: 本发明的激光光源(10)具备多个半导体激光器(1)和从各半导体激光器(1)发射的光束传播的波导管(3),并且将多个半导体激光器配置在 波导的入射端面(31)的上端,使得从各个半导体激光器发射的光束(4)从波导的端面(31)进入波导,并从另一端面(32 )。 由此,能够实现能够输出具有均匀的光强度分布的光束的高功率,小型化的激光光源。

    Two-dimensional photoreceptor array, holographic optical information playback device, and holographic optical information recording device
    95.
    发明申请
    Two-dimensional photoreceptor array, holographic optical information playback device, and holographic optical information recording device 失效
    二维感光体阵列,全息光学信息回放装置和全息光学信息记录装置

    公开(公告)号:US20050111335A1

    公开(公告)日:2005-05-26

    申请号:US10969919

    申请日:2004-10-22

    IPC分类号: G11B7/00 G11B7/0065 G11B7/13

    CPC分类号: G11B7/131 G11B7/0065

    摘要: A holographic optical information playback apparatus for playing information that is recorded on a recording medium in a form of interference fringes is provided with a two-dimensional photoreceptor array which receives a two-dimensional array of light spots that is diffracted at the recording medium due to application of reference light onto the medium, and outputs a playback signal including information recorded on the recording medium. The two-dimensional photoreceptor array has a photoreceptor section in which plural photoreceptor cells for detecting the intensities of received lights are arranged so that a photoreceptive area corresponding to the light spot array is formed, and assigns plural photoreceptor cells are assigned to each light spot in the light spot array according to the irradiation position of the light spot array, whereby the light intensity of one light sport is detected using the output signals from the plural photoreceptor cells.

    摘要翻译: 用于播放以干涉条纹形式记录在记录介质上的信息的全息光学信息重放设备设置有二维感光体阵列,其接收在记录介质处衍射的光点的二维阵列,因为由于 将参考光施加到介质上,并输出包括记录在记录介质上的信息的重放信号。 二维感光体阵列具有感光体部,其中配置有用于检测接收光的强度的多个感光体细胞,使得形成与光点阵列对应的感光区域,并将多个感光体细胞分配给每个光点 根据光点阵列的照射位置的光点阵列,由此使用来自多个感光体单元的输出信号来检测一次光线运动的光强度。

    Optical device, laser beam source, laser apparatus and method of producing optical device
    99.
    发明授权
    Optical device, laser beam source, laser apparatus and method of producing optical device 失效
    光学装置,激光束源,激光装置及其制造方法

    公开(公告)号:US06333943B1

    公开(公告)日:2001-12-25

    申请号:US08973380

    申请日:1998-03-16

    IPC分类号: H01S500

    摘要: After forming domain inverted layers 3 in an LiTaO3 substrate 1, an optical waveguide is formed. By performing low-temperature annealing for the optical wavelength conversion element thus formed, a stable proton exchange layer 8 is formed, where an increase in refractive index generated during high-temperature annealing is lowered, thereby providing a stable optical wavelength conversion element. Thus, the phase-matched wavelength becomes constant, and variation in harmonic wave output is eliminated. Consequently, with respect to an optical wavelength conversion element utilizing a non-linear optical effect a highly reliable element is provided.

    摘要翻译: 在LiTaO 3基板1中形成畴反转层3之后,形成光波导。 通过对由此形成的光波长转换元件进行低温退火,形成稳定的质子交换层8,在高温退火时产生的折射率的升高降低,从而提供稳定的光波长转换元件。 因此,相位匹配波长变得恒定,并且消除了谐波输出的变化。 因此,对于利用非线性光学效应的光波长转换元件,提供了高度可靠的元件。

    Optical apparatus and method for producing the same
    100.
    发明授权
    Optical apparatus and method for producing the same 失效
    光学装置及其制造方法

    公开(公告)号:US06298075B1

    公开(公告)日:2001-10-02

    申请号:US09480217

    申请日:2000-01-10

    IPC分类号: H01S300

    摘要: A light generating apparatus includes: a submount; a semiconductor laser chip mounted on the submount; a substrate which is mounted on the submount and includes an optical waveguide; and a substance having a predetermined thickness which is disposed between the semiconductor laser chip and the substrate. In an oscillation wavelength stabilizing apparatus for a light source, the light source is a semiconductor laser which includes: an active region for providing gain; and a distributed Bragg reflection (DBR) region for controlling an oscillation wavelength. The apparatus includes a control section which monotonously varies, in a first direction, a DBR current to be input to the DBR region while detecting the oscillation wavelength of an output light of the semiconductor laser so as to detect a DBR current value Io corresponding to a predetermined wavelength value, and then monotonously varies the DBR current in a second direction which is opposite the first direction beyond the detected value Io, and then monotonously varies the DBR current in the first direction again to set the DBR current at the detected value Io, thereby fixing the oscillation wavelength of the semiconductor laser chip at the predetermined wavelength value.

    摘要翻译: 一种发光装置,包括:底座; 安装在底座上的半导体激光芯片; 基板,其安装在所述基座上并且包括光波导; 以及设置在半导体激光芯片和基板之间的具有预定厚度的物质。 在用于光源的振荡波长稳定装置中,光源是半导体激光器,其包括:用于提供增益的有源区; 以及用于控制振荡波长的分布式布拉格反射(DBR)区域。 该装置包括控制部分,其在检测半导体激光器的输出光的振荡波长的同时,在第一方向上单向地变化要输入到DBR区域的DBR电流,以便检测对应于所述半导体激光器的DBR电流值Io 预定波长值,然后在与第一方向相反的第二方向上将DBR电流单调变化超过检测值Io,然后再次单向地改变第一方向上的DBR电流,以将DBR电流设定在检测值Io, 从而将半导体激光器芯片的振荡波长固定在预定波长值。