OPTICAL METHOD FOR READING SHAPE OF PROFILE AND APPLICATION THEREOF FOR READING INSIDE EDGE OF SPECTACLE FRAME RIM

    公开(公告)号:JP2002181516A

    公开(公告)日:2002-06-26

    申请号:JP2001338592

    申请日:2001-09-28

    Applicant: ESSILOR INT

    Abstract: PROBLEM TO BE SOLVED: To provide a method for reading the three-dimensional shape of a profile such as the bezel of a spectacle frame rim. SOLUTION: The optical non-contact method for reading the three-dimensional shape of a profile in accordance with the luminous suction principle includes scanning the profile with a plane light beam intersecting the profile transversely, simultaneously reading the trace of the plane light beam on the profile by means of an optical receiver having an optical pointing axis at a constant non-zero pointing angle to the light beam at a series of positions along the profile, and deducing the three-dimensional shape of the profile from the readings performed at these various positions. On each reading, the light beam of which the trace on the profile is read by the optical receiver is chosen from a plurality of predefined light beams which can be activated alternately. The non-contact optical reading method is particularly suitable for reading the three- dimensional shape of the inside edge of a spectacle frame rim, known as the bezel. A specific device is used to implement the method in this application.

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    发明专利
    未知

    公开(公告)号:DE60139445D1

    公开(公告)日:2009-09-17

    申请号:DE60139445

    申请日:2001-09-28

    Applicant: ESSILOR INT

    Abstract: Method has the following steps: scanning of the profile using a planar light beam (F1-F8) arranged to cut the profile of the object being measured. The trace of the optical beams on the profile is determined using optical detectors means (31-33, 36) with an optical axis (35) forming an indicator angle that is constant and none zero with the light beams (F1-F8) at a series of positions around the profile. Each sampling point is chosen from one of the light beams in a pre-established fashion activated accordingly. An Independent claim is made for a device having at least two emitters for transmitting distinct light beams (F1-F8).

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    发明专利
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    公开(公告)号:AT438838T

    公开(公告)日:2009-08-15

    申请号:AT01402513

    申请日:2001-09-28

    Applicant: ESSILOR INT

    Abstract: Method has the following steps: scanning of the profile using a planar light beam (F1-F8) arranged to cut the profile of the object being measured. The trace of the optical beams on the profile is determined using optical detectors means (31-33, 36) with an optical axis (35) forming an indicator angle that is constant and none zero with the light beams (F1-F8) at a series of positions around the profile. Each sampling point is chosen from one of the light beams in a pre-established fashion activated accordingly. An Independent claim is made for a device having at least two emitters for transmitting distinct light beams (F1-F8).

    4.
    发明专利
    未知

    公开(公告)号:FR2814808B1

    公开(公告)日:2002-12-20

    申请号:FR0012520

    申请日:2000-10-02

    Applicant: ESSILOR INT

    Abstract: Method has the following steps: scanning of the profile using a planar light beam (F1-F8) arranged to cut the profile of the object being measured. The trace of the optical beams on the profile is determined using optical detectors means (31-33, 36) with an optical axis (35) forming an indicator angle that is constant and none zero with the light beams (F1-F8) at a series of positions around the profile. Each sampling point is chosen from one of the light beams in a pre-established fashion activated accordingly. An Independent claim is made for a device having at least two emitters for transmitting distinct light beams (F1-F8).

    5.
    发明专利
    未知

    公开(公告)号:FR2814808A1

    公开(公告)日:2002-04-05

    申请号:FR0012520

    申请日:2000-10-02

    Applicant: ESSILOR INT

    Abstract: Method has the following steps: scanning of the profile using a planar light beam (F1-F8) arranged to cut the profile of the object being measured. The trace of the optical beams on the profile is determined using optical detectors means (31-33, 36) with an optical axis (35) forming an indicator angle that is constant and none zero with the light beams (F1-F8) at a series of positions around the profile. Each sampling point is chosen from one of the light beams in a pre-established fashion activated accordingly. An Independent claim is made for a device having at least two emitters for transmitting distinct light beams (F1-F8).

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