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    • 1. 发明公开
    • 안굴절력 측정장치
    • 屈光计
    • KR1020070104905A
    • 2007-10-29
    • KR1020077018113
    • 2006-01-06
    • 가부시키가이샤 니데크
    • 이소가이나오키하네부치마사아키고노미츠히로나카무라겐지
    • A61B3/10A61B3/103
    • A61B3/103
    • An eye refractive power measuring system able to deliver measured results with a good precision. The eye refractive power measuring system, for objectively measuring the eye refractive power of an examinee's eye, comprises a projection optical system having a light source and projecting measurement light onto the fundus of an examinee's eye, a light reception optical system having an imaging element as a two-dimensional light receiving element and receiving measurement light reflected off the fundus, and a computing unit for determining the eye refractive power of an examinee's eye based on a two-dimensional pattern image picked up by an imaging element through measurement light, wherein the light source is a super-luminescent diode or a laser diode, and the center wavelength of light to be output ranges from about 850nm to about 940nm.
    • 眼屈光力测量系统能够精确地传递测量结果。 用于客观地测量受检眼睛的眼睛屈光力的眼屈光力测量系统包括具有光源并将测量光投射到被检眼的眼底的投影光学系统,具有成像元件的光接收光学系统 二维光接收元件,并且接收从眼底反射的测量光;以及计算单元,用于基于由成像元件通过测量光拾取的二维图案图像来确定被检眼的眼睛屈光力,其中, 光源是超发光二极管或激光二极管,并且要输出的光的中心波长范围为约850nm至约940nm。
    • 3. 发明公开
    • 검안 장치
    • 一个光学装置
    • KR1020060105605A
    • 2006-10-11
    • KR1020060029077
    • 2006-03-30
    • 가부시키가이샤 니데크
    • 하네부치마사아키
    • A61B3/028
    • A61B3/1035A61B3/12
    • An optometry apparatus comprising: a target projecting optical system (10) adapted for diopter movement, for projecting a target (1) onto a fundus of an examinee's eye (E) to form an image of the target on the fundus, wherein the target projecting optical system including: an objective lens (2) to be positioned at the front of the examinee's eye; a relay lens (6) arranged so that a front focal point of the relay lens coincides with an approximate conjugate point of an anterior segment of the examinee's eye with respect to the objective lens positioned at the front of the examinee's eye; a plus-power lens (3) arranged at the approximate conjugate point of the anterior segment with respect to the positioned objective lens, the plus-power lens having refractive power determined so that a front focal point of the plus-power lens coincides with an approximate conjugate point of the fundus with respect to the positioned objective lens; and an astigmatism correction optical element (4, 5) arranged between the relay lens and the plus-power lens, for correcting astigmatism of the examinee's eye.
    • 5. 发明授权
    • 검안 장치
    • 一个光学装置
    • KR101181686B1
    • 2012-09-19
    • KR1020060029077
    • 2006-03-30
    • 가부시키가이샤 니데크
    • 하네부치마사아키
    • A61B3/028
    • A61B3/1035A61B3/12
    • An optometry apparatus comprising: a target projecting optical system (10) adapted for diopter movement, for projecting a target (1) onto a fundus of an examinee's eye (E) to form an image of the target on the fundus, wherein the target projecting optical system including: an objective lens (2) to be positioned at the front of the examinee's eye; a relay lens (6) arranged so that a front focal point of the relay lens coincides with an approximate conjugate point of an anterior segment of the examinee's eye with respect to the objective lens positioned at the front of the examinee's eye; a plus-power lens (3) arranged at the approximate conjugate point of the anterior segment with respect to the positioned objective lens, the plus-power lens having refractive power determined so that a front focal point of the plus-power lens coincides with an approximate conjugate point of the fundus with respect to the positioned objective lens; and an astigmatism correction optical element (4, 5) arranged between the relay lens and the plus-power lens, for correcting astigmatism of the examinee's eye.