LENS FOR SIMULTANEOUS FIELD-OF-VIEW OPHTHALMOLOGY FOR CORRECTING PRESBYOPIA AND PAIR OF LENSES FOR OPHTHALMOLOGY OF THIS KIND FOR PERSON WEARING LENS THEREOF

    公开(公告)号:JPH06250127A

    公开(公告)日:1994-09-09

    申请号:JP1475894

    申请日:1994-02-09

    Applicant: ESSILOR INT

    Abstract: PURPOSE: To provide a simultaneous visual field ophthalmologic lens for presbyopia correction and a pair of the ophthalmologic lenses of this kind for a person wearing the same. CONSTITUTION: At the time of specifying a far visual field area and a near visual field area in this simultaneous visual field ophthalmologic lens for correcting presbyopia, a curve for indicating a proximity degree as the function of a distance from an axis is present in an area between a lower side envelope curve and an upper side envelope curve by a relating specified polynomial for which a coefficient depends on proximity degree weighting corresponding to the degree of the presbyopia of the wearing person. The far visual field area or the near visual field area is reinforced to the other and corresponding surface areas SVL and SVP are related as following. For a reinforced near visual field, 1.8

Patent Agency Ranking