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    • 52. 发明授权
    • Optical member inspection apparatus
    • 光学元件检测仪器
    • US06034766A
    • 2000-03-07
    • US35055
    • 1998-03-05
    • Masayuki SugiuraKiyoshi YamamotoTaichi Nakanishi
    • Masayuki SugiuraKiyoshi YamamotoTaichi Nakanishi
    • G01M11/02G01N21/896G01N21/958G01N21/00G01B9/00
    • G01N21/958G01M11/0242G01M11/0278G01N2021/9511
    • An optical member inspection apparatus is disclosed. A light shielding plate functions to cast a shadow region so that a line sensor receives an image producing a particular defined image data output, generally speaking a dark image representing an absence of light from an illuminator. When an inspection target optical member is inserted in the light path to intersect that shadow region, the line sensor produces the same image data in the event that there is no defect in the optical member. However, a defect in the optical member will enable light from outside that shadow region to be diffused to impinge on the line sensor thereby producing a change in the image data output. Evaluation of the change in the image data output can provide an indication of the degree of defectiveness.
    • 公开了一种光学构件检查装置。 遮光板用于投射阴影区域,使得线传感器接收产生特定定义的图像数据输出的图像,一般来说表示来自照明器的光不存在的暗图像。 当在光路中插入检查对象光学构件以与该阴影区域相交时,在光学构件中没有缺陷的情况下,线传感器产生相同的图像数据。 然而,光学构件的缺陷将使来自该阴影区域的外部的光能够扩散以撞击在线传感器上,从而产生图像数据输出的变化。 评估图像数据输出的变化可以提供缺陷程度的指示。
    • 59. 发明授权
    • Press-forming method for optical element
    • 光学元件压制成型方法
    • US5228894A
    • 1993-07-20
    • US901980
    • 1992-06-22
    • Bunryo SatoTakeshi NomuraKiyoshi YamamotoMasaki Ohmori
    • Bunryo SatoTakeshi NomuraKiyoshi YamamotoMasaki Ohmori
    • C03B11/00C03B11/08
    • C03B11/08
    • A method for press-forming a glass preform includes the steps of applying positioning pressure to an upper mold as the temperature of the upper mold and a lower mold increase to set values, maintaining a first temperature difference between the upper and lower molds of at least 10.degree. C. and increasing the temperature of the glass preform to a value above its glass transition temperature. Additional steps include cooling the upper and lower molds at a rate of 30.degree. to 100.degree. C. per minute while maintaining a temperature difference between the upper and lower molds at at least the first temperature difference, applying pressure to the lower mold, and opening the upper and lower molds to release the formed optical element after the temperatures of the upper and lower molds decrease to below a set value and a temperature difference between the upper and lower molds becomes greater than the first temperature difference.
    • 一种用于压制成型玻璃预制件的方法包括以下步骤:随着上模和下模的温度升高而将定位压力施加到上模,以设定值,保持上模和下模之间的第一温差至少 10℃,并将玻璃预制件的温度提高到高于其玻璃化转变温度的值。 另外的步骤包括以每分钟30-100℃的速度冷却上模具和下模具,同时在至少第一温度差下保持上模和下模之间的温差,向下模施加压力,并打开 上下模具在上下模具的温度降低到设定值以下之前释放形成的光学元件,并且上模具和下模具之间的温差变得大于第一温度差。
    • 60. 发明授权
    • Method of manufacturing optical element
    • 制造光学元件的方法
    • US5215566A
    • 1993-06-01
    • US820916
    • 1992-01-15
    • Kiyoshi YamamotoTakeshi Nomura
    • Kiyoshi YamamotoTakeshi Nomura
    • C03B11/08
    • C03B11/08C03B2215/87
    • A method of manufacturing an optical element from glass material is accommodated between an upper member and a lower member of mold. The glass material is press-molded in a state and heated to a desired temperature, thereafter being cooled and released from the mold to form a product having a predetermined optical functional surface. When the product is released from the mold, the upper mold member is first lifted by a predetermined amount, where the product may adhere to the upper mold member. Upon or after releasing and falling of the molded product from the upper mold member due to its own weight or heat stress, the upper mold member is further caused to ascend and the mold is opened so that the molded product can be taken out.
    • 从玻璃材料制造光学元件的方法容纳在模具的上部构件和下部构件之间。 玻璃材料在一种状态下被压模并加热至所需温度,然后被冷却并从模具中释放以形成具有预定光学功能表面的产品。 当产品从模具中释放时,首先将上模具提升预定量,其中产品可能粘附到上模具构件上。 在由于其自身重量或热应力而使模制产品从上模具脱模和脱落之后或之后,上模具进一步上升并且模具打开,从而可以取出模塑产品。