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    Apparatus for measuring the refractive errors of an eye
    24.
    发明授权
    Apparatus for measuring the refractive errors of an eye 失效
    用于测量眼睛的反射性错误的装置

    公开(公告)号：US3572910A

    公开(公告)日：1971-03-30

    申请号：US3572910D

    申请日：1969-03-24

    Applicant: AMERICAN OPTICAL CORP

    Inventor： KOESTER CHARLES J

    IPC: A61B3/10 ,  A61B3/103

    CPC classification number: A61B3/103

    Abstract: Apparatus for determining refractive errors of a patient''s eye including means for projecting an image of a white light source pattern which is wavelength-dispersed into said eye and onto the retina thereof and means for enabling a refractionist or the like to observe the wavelength recombined image reflected by the retina for determining the sharpness of focus thereof. During the observation, the apparatus is adjusted to focus the image for maximum sharpness upon the retina and the amount of focusing required from a normal eye refraction position measured to determine the refractive error of the patien''s eye.

    Optical means for production of laser emission
    25.
    发明授权
    Optical means for production of laser emission 失效
    用于生产激光发射的光学手段

    公开(公告)号：US3566300A

    公开(公告)日：1971-02-23

    申请号：US3566300D

    申请日：1962-01-31

    Applicant: AMERICAN OPTICAL CORP

    Inventor： SIMPSON GEORGE R ,  KOESTER CHARLES J ,  SNITZER ELIAS

    IPC: H01S3/093 ,  H01S3/02

    CPC classification number: H01S3/093

    Abstract: 1. A DEVICE FOR USE IN A LASER ASSEMBLY, SAID DEVICE COMPRISING A LASER COMPONENT OF PREDETERMINED LENGTH AND CROSS-SECTIONAL SIZE AND FORMED OF AN ACTIVE LASER MATERIAL, REFRACTING OPTICAL MEANS INCLUDING A REFRACTING LENS ELEMENT IN OPTICAL ALIGNMENT WITH AND IN INTIMATE OPTICAL CONTACT WITH AN END WALL OF SAID LASER COMPONENT, SAID REFRACTIVE LENS ELEMENT HAVING A SPHERICALLY CURVED FRONT SURFACE OF SUCH PREDETERMINED CONVEX CURVATURE AS TO RECEIVE A CONVERGENT BEAM OF PUMPING LIGHT OF LARGE PREDETERMINED ANGULAR VALUE AND HIGH FLUX DENSITY AND DIRECT SAME AT INCREASED FLUX DENSITY INTO SAID END OF SAID LASER COMPONENT, A FIRST HIGHLY REFLECTING COATING UPON THE FRONT OF SAID REFRACTING LENS ELEMENT ADJACENT THE VERTEX THEREOF, AND A SECOND HIGHLY REFLECTING COATING UPON THE END OF SAID LASER COMPONENT REMOTE FROM SAID LENS ELEMENT, SAID FIRST AND SECOND COATINGS BEING IN FACING RELATION TO EACH OTHER SO AS TO FORM AN OPTICAL RESONANT CAVITY THEREBETWEEN, AT LEAST ONE OF SAID COATINGS HAVING A RELATIVELY SMALL AMOUNT OF TRANSMISSION SO AS TO ALLOW LASER LIGHT DURING LASER ACTION TO PASS OUTWARDLY THERETHROUGH.

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