Diffractive lens with gratings modified to offset effects caused by holding the lens at an angle with respect to a light source
    2.
    发明授权
    Diffractive lens with gratings modified to offset effects caused by holding the lens at an angle with respect to a light source 失效
    具有光栅的衍射透镜被修改以抵消通过将透镜相对于光源保持一定角度而引起的影响

    公开(公告)号:US06466371B1

    公开(公告)日:2002-10-15

    申请号:US09491714

    申请日:2000-01-27

    IPC分类号: G02B2744

    摘要: A diffractive lens constructed in accordance with the invention comprises a set of bands such that the diffractive gratings in each band are modified. This is done to ensure that even if the lens is tilted (e.g. to prevent light from reflecting off the lens and, introducing distortion into an optical system), the lens continues to focus light onto a small point on a target surface. (The target surface is typically an optical or magneto-optic data recording medium.)

    摘要翻译: 根据本发明构造的衍射透镜包括一组带,使得每个带中的衍射光栅被修改。 这是为了确保即使透镜倾斜(例如以防止光从透镜反射并将失真引入光学系统),透镜继续将光聚焦到目标表面上的小点上。 (目标表面通常是光学或磁光数据记录介质。)

    Gray scale mask and depth pattern transfer technique using inorganic
chalcogenide glass
    4.
    发明授权
    Gray scale mask and depth pattern transfer technique using inorganic chalcogenide glass 失效
    使用无机硫族化物玻璃的灰度掩模和深度图案转移技术

    公开(公告)号:US6033766A

    公开(公告)日:2000-03-07

    申请号:US228910

    申请日:1999-01-11

    摘要: A method of producing a high resolution expanded analog gray scale mask is described. Using an inorganic chalcogenide glass, such as a selenium germanium, coated with a thin layer of silver, a gray scale mask may be produced with accurate control of the size, uniformity and variance of the pixels. The selenium germanium glass is composed of column structures arranged perpendicularly to the substrate giving a possible edge precision of 100 .ANG.. The column structures also prevent undercutting during the etching process, thus permitting pixels to be placed close together. Accordingly, selenium germanium may be used as a high resolution gray scale mask with an expanded analog gray scale. The gray scale mask may be used to impress information as a modulated thickness on a selenium germanium photoresist layer on an inorganic substrate. The selenium germanium photoresist layer may then transfer the gray scale to the substrate.

    摘要翻译: 描述了一种制造高分辨率扩展模拟灰度掩模的方法。 使用涂覆有薄银层的无机硫族化物玻璃(例如硒锗)可以通过精确控制像素的尺寸,均匀性和方差来生产灰度掩模。 硒锗玻璃由垂直于衬底排列的柱结构组成,给出了100 ANGSTROM的边缘精度。 柱结构还防止在蚀刻工艺期间的底切,从而允许像素靠近放置在一起。 因此,硒锗可以用作具有扩展的模拟灰度级的高分辨率灰度级掩模。 灰度掩模可用于将无机基底上的硒锗光致抗蚀剂层上的信息作为调制厚度印记。 然后,硒锗光致抗蚀剂层可以将灰度级转移到衬底。

    MULTIPLE DIE LED AND LENS OPTICAL SYSTEM
    5.
    发明申请
    MULTIPLE DIE LED AND LENS OPTICAL SYSTEM 有权
    多功能LED和镜头光学系统

    公开(公告)号:US20130069084A1

    公开(公告)日:2013-03-21

    申请号:US13425635

    申请日:2012-03-21

    IPC分类号: H01L27/15

    摘要: A light emitting device includes a number of light emitting diode dies (LEDs) mounted on a shared submount and covered with a single lens element that includes a corresponding number of lens elements. The LEDs are separated from each other by a distance that is sufficient for lens element to include separate lens elements for each LED. The separation of the LEDs and lens elements may be configured to produce a desired amount of light on a target at a predefined distance. In one embodiment, the lens elements are approximately flat type lens elements, such as Fresnel, TIR, diffractive lens, photonic crystal type lenses, prism, or reflective lens.

    摘要翻译: 发光器件包括安装在共享底座上并被包括相应数量的透镜元件的单个透镜元件覆盖的多个发光二极管管芯(LED)。 LED彼此分离一段足以使透镜元件包括用于每个LED的分离的透镜元件的距离。 LED和透镜元件的分离可以被配置为在预定距离上在目标上产生期望量的光。 在一个实施例中,透镜元件是大致平坦的透镜元件,例如菲涅耳,TIR,衍射透镜,光子晶体型透镜,棱镜或反射透镜。

    Dual focus lens with extended depth of focus
    7.
    发明授权
    Dual focus lens with extended depth of focus 失效
    双焦距镜头,具有更高的焦距

    公开(公告)号:US06330118B1

    公开(公告)日:2001-12-11

    申请号:US09288269

    申请日:1999-04-08

    IPC分类号: G02B310

    摘要: A magneto optic or optical disk drive comprises a laser source for providing laser beam, and a lens or compound lens for focussing the laser onto a currently inserted recording disk with specific overcoat thickness. In one embodiment, the lens is a compound lens that can focus aberration-free spots on different types of disk media having recording layers located under overcoats of different thicknesses. When a specific disk is inserted, only one spot in focussed onto the current recording layer. Furthermore, if the disk spins rapidly, it can wobble. The lens or compound lens comprises different regions where the focal length may vary slightly and continuously or discretely. Because of this, as the disk wobbles, the lens can nonetheless continue to focus laser light onto a small spot on the recording media, providing increased depth of focus in the vicinity of the currently inserted recording media. Furthermore, the increased depth of focus will also remedy problems related to the change in focal length of the lens with changes in wavelength of the laser source. Because some of these changes in wavelength occur abruptly, this is also a case in which the limited performance of the auto-focus tracking system would be overly burdened.

    摘要翻译: 磁光盘或光盘驱动器包括用于提供激光束的激光源和用于将激光聚焦到具有特定外涂层厚度的当前插入的记录盘上的透镜或复合透镜。 在一个实施例中,透镜是可以将像差自由点聚焦在具有位于不同厚度的外涂层下的记录层的不同类型的盘介质上的复合透镜。 当插入特定盘时,只有一个点集中在当前记录层上。 此外,如果磁盘快速旋转,则可能会摆动。 透镜或复合透镜包括不同的区域,其中焦距可以稍微和连续地或离散地变化。 正因为如此,随着磁盘的摆动,透镜可以继续将激光聚焦到记录介质上的一个小点上,从而在当前插入的记录介质附近提供增加的焦点深度。 此外,增加的焦深也将补救与激光源的波长变化相关的透镜焦距变化的问题。 因为这些波长的一些变化突然发生,所以这也是自动对焦跟踪系统的有限性能过度负担的情况。

    Multiple die LED and lens optical system
    8.
    发明授权
    Multiple die LED and lens optical system 有权
    多芯片LED和镜头光学系统

    公开(公告)号:US08729571B2

    公开(公告)日:2014-05-20

    申请号:US13425635

    申请日:2012-03-21

    摘要: A light emitting device includes a number of light emitting diode dies (LEDs) mounted on a shared submount and covered with a single lens element that includes a corresponding number of lens elements. The LEDs are separated from each other by a distance that is sufficient for lens element to include separate lens elements for each LED. The separation of the LEDs and lens elements may be configured to produce a desired amount of light on a target at a predefined distance. In one embodiment, the lens elements are approximately flat type lens elements, such as Fresnel, TIR, diffractive lens, photonic crystal type lenses, prism, or reflective lens.

    摘要翻译: 发光器件包括安装在共享底座上并被包括相应数量的透镜元件的单个透镜元件覆盖的多个发光二极管管芯(LED)。 LED彼此分离一段足以使透镜元件包括用于每个LED的分离的透镜元件的距离。 LED和透镜元件的分离可以被配置为在预定距离上在目标上产生期望量的光。 在一个实施例中,透镜元件是大致平坦的透镜元件,例如菲涅耳,TIR,衍射透镜,光子晶体型透镜,棱镜或反射透镜。