Technique for making deep microstructures in photoresist
    3.
    发明授权
    Technique for making deep microstructures in photoresist 失效
    在光致抗蚀剂中制备深度微结构的技术

    公开(公告)号:US06740474B2

    公开(公告)日:2004-05-25

    申请号:US09993033

    申请日:2001-11-06

    IPC分类号: G03F700

    摘要: A method is disclosed for making deep microstructures in photoresist. The method utilizes a pool of photoresist on top of a transparent substrate and the laser is located below the substrate. Structures are created in the photoresist by transmitting the laser light through the substrate up into the photoresist. Since the photoresist does not have to be spin coated onto the substrate, very thick layers of photoresist can be used while the thickness uniformity is determined by the substrate surface. Alternately, a contoured substrate can be used while producing uniform structures.

    摘要翻译: 公开了一种在光致抗蚀剂中制造深度微结构的方法。 该方法在透明衬底的顶部上使用光致抗蚀剂池,激光位于衬底下方。 通过将激光通过衬底传输到光致抗蚀剂中,在光致抗蚀剂中产生结构。 由于不需要将光致抗蚀剂旋转涂覆到基底上,所以可以使用非常厚的光致抗蚀剂层,而厚度均匀性由衬底表面确定。 或者,可以使用轮廓基材,同时产生均匀的结构。

    Tissue imaging system
    4.
    发明授权
    Tissue imaging system 有权
    组织成像系统

    公开(公告)号:US07460248B2

    公开(公告)日:2008-12-02

    申请号:US11383254

    申请日:2006-05-15

    IPC分类号: G01B9/02 G01B11/02

    摘要: A tissue imaging system (200) for examining the medical condition of tissue (290) has an illumination optical system (205), which comprises a light source (220), having one or more light emitters, beam shaping optics, and polarizing optics. An optical beamsplitter (260) directs illumination light to an imaging sub-system, containing a spatial light modulator array (300). An objective lens (325) images illumination light from the spatial light modulator array to the tissue. An optical detection system (210) images the spatial light modulator to an optical detector array. A controller (360) drives the spatial light modulator to provide time variable arrangements of on-state pixels. The objective lens operates in a nominally telecentric manner relative to both the spatial light modulator and the tissue. The polarizing optics are independently and iteratively rotated to define variable polarization states relative to the tissue. The modulator pixels optically function like pinholes relative to the illumination light and the image light.

    摘要翻译: 用于检查组织(290)的医学状况的组织成像系统(200)具有照明光学系统(205),其包括具有一个或多个光发射器,光束整形光学器件和偏振光学器件的光源(220)。 光分束器(260)将照明光引导到包含空间光调制器阵列(300)的成像子系统。 物镜(325)将来自空间光调制器阵列的照明光图像转印到组织。 光学检测系统(210)将空间光调制器成像到光学检测器阵列。 控制器(360)驱动空间光调制器以提供导通状态像素的时间可变布置。 物镜相对于空间光调制器和组织以标称远心方式工作。 偏振光学器件被独立地并且迭代地旋转以限定相对于组织的可变极化状态。 调制器像素相对于照明光和图像光光学地起着像针孔的作用。

    Method for forming a tool for molding microlens arrays
    6.
    发明授权
    Method for forming a tool for molding microlens arrays 失效
    用于形成用于模塑微透镜阵列的工具的方法

    公开(公告)号:US06385997B1

    公开(公告)日:2002-05-14

    申请号:US09570609

    申请日:2000-05-12

    IPC分类号: C03B2326

    摘要: A method for fabricating a mold tool for molding optical elements is taught which comprises heating a mold tool blank made from a vitreous material to a temperature above the glass transition temperature of the vitreous material; generating an axial viscosity gradient in the mold tool blank; pressing a punch into an optical quality mold surface of the mold tool blank, the punch including a pressing surface with a predetermined geometry for forming an optical feature; cooling the mold tool blank to a temperature below the glass transition temperature of the material; and removing the punch from the mold tool blank thereby creating the optical feature in the optical quality mold surface. The axial viscosity gradient is achieved by creating an axial thermal gradient. Multiple optical features can be formed in the mold surface of the blank using a single punch such that the pressing, cooling and removing steps are repeated with the punch or the blank being translated to a different position between the last removing step and the next pressing step. In such manner, a high temperature glass mold tool can be formed which can be used to mold glass optical elements either individually or in arrays.

    摘要翻译: 一种用于制造用于模制光学元件的模具的方法,包括将由玻璃质材料制成的模具坯料加热到高于玻璃质材料的玻璃化转变温度的温度; 在模具坯料中产生轴向粘度梯度; 将冲头压入模具坯料的光学质量模具表面中,冲头包括具有用于形成光学特征的预定几何形状的按压表面; 将模具坯料冷却到低于材料的玻璃化转变温度的温度; 并从模具坯料上移除冲头,从而在光学质量模具表面中形成光学特征。 通过产生轴向热梯度来实现轴向粘度梯度。 可以使用单个冲头在坯料的模具表面中形成多个光学特征,使得当冲头或坯料被转换到最后的去除步骤和下一个压制步骤之间的不同位置时,重复挤压,冷却和移除步骤 。 以这种方式,可以形成高温玻璃模具,其可以单独地或阵列地用于模制玻璃光学元件。

    Optical assembly and a method for manufacturing lens systems
    7.
    发明授权
    Optical assembly and a method for manufacturing lens systems 有权
    光学组件和制造透镜系统的方法

    公开(公告)号:US06324010B1

    公开(公告)日:2001-11-27

    申请号:US09516094

    申请日:2000-02-29

    IPC分类号: G02B2710

    摘要: According to one aspect of the present invention, a method of making a lens assembly with a plurality of lens arrays having a plurality of lenslets and at least one spacer having a plurality of holes, includes the steps of (i) arranging at least two lens arrays and the spacer, such that the spacer is located between the two lens arrays and the lenslets of one of the two lens arrays overlay the lenslets of another one of the two lens arrays and, the holes of the spaces are located between the corresponding lenslets of the two lens arrays; (ii) fixedly attaching the lens arrays and the spacer to one another to form an array assembly; and (iii) dividing the array assembly to create a plurality of individual lens systems. According to another aspect of the present invention, the optical assembly includes at least two lens arrays and at least one spacer with a plurality of holes. The spacer is located between the two lens arrays and is fixedly attached to the two lens arrays. The spacer has a thickness of 0.05 to 0.5 mm. The lens arrays have a plurality of lenslets of no more than 1 mm in diameter. It is preferred that the lens arrays have a largest dimension of at least 5 mm.

    摘要翻译: 根据本发明的一个方面,制造具有多个具有多个小透镜的多个透镜阵列和至少一个具有多个孔的间隔物的透镜组件的方法包括以下步骤:(i)将至少两个透镜 阵列和间隔物,使得间隔物位于两个透镜阵列之间,并且两个透镜阵列之一的小透镜覆盖两个透镜阵列中的另一个透镜阵列的小透镜,并且空间的孔位于相应的小透镜 的两个透镜阵列; (ii)将透镜阵列和间隔件固定地彼此连接以形成阵列组件; 和(iii)分割阵列组件以产生多个单独的透镜系统。 根据本发明的另一方面,光学组件包括至少两个透镜阵列和至少一个具有多个孔的间隔物。 间隔件位于两个透镜阵列之间,并且固定地附接到两个透镜阵列。 间隔物的厚度为0.05〜0.5mm。 透镜阵列具有多个直径不大于1mm的小透镜。 优选的是,透镜阵列具有至少5mm的最大尺寸。