KR890013500A - Contact lens for astigmatism and its manufacturing method - Google Patents

Contact lens for astigmatism and its manufacturing method Download PDF

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Publication number
KR890013500A
KR890013500A KR1019880000991A KR880000991A KR890013500A KR 890013500 A KR890013500 A KR 890013500A KR 1019880000991 A KR1019880000991 A KR 1019880000991A KR 880000991 A KR880000991 A KR 880000991A KR 890013500 A KR890013500 A KR 890013500A
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KR
South Korea
Prior art keywords
lens
astigmatism
contact lens
prism
center
Prior art date
Application number
KR1019880000991A
Other languages
Korean (ko)
Inventor
이무걸
Original Assignee
이무걸
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 이무걸 filed Critical 이무걸
Priority to KR1019880000991A priority Critical patent/KR890013500A/en
Publication of KR890013500A publication Critical patent/KR890013500A/en

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Abstract

내용 없음.No content.

Description

난시용 콘택트렌즈 및 그 제조방법Contact lens for astigmatism and its manufacturing method

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제3도는 본 발명의 절삭부위를 나타내는 개략평면도,3 is a schematic plan view showing a cutting portion of the present invention,

제4도는 제3도의 A-A선 단면도.4 is a cross-sectional view taken along the line A-A of FIG.

Claims (3)

프리즘에 의해 상하방향으로 점차 두껍게 형성되면서 중앙부에 시각부가 형성되고, 이 시각부외측에는 테두리부가 형성된 구조를 갖는 난시용콘택트렌즈에 있어서, 상기 테두리부(3)는 그 가장자리쪽으로 가면서 점점 얇아지고, 시각부(2)의 하단에는 적당한 폭을 갖는 융기부(4)가 형성됨으로써 사용시 상기 융기부(4)에 무게 중심이 형성됨과 더불어 이 융기부(4)의 경사면에 눈꺼풀이 마찰되어 항상 수평을 유지하도록 된 것을 특징으로 하는 난시용 콘택트 렌즈.In the astigmatism contact lens having a structure in which the visual part is formed in the center while being gradually thickened vertically by a prism, and the edge part is formed outside the visual part, the edge part 3 becomes thinner and thinner as it goes toward the edge thereof. The lower part of the part 2 is formed with a ridge 4 having an appropriate width, so that the center of gravity is formed in the ridge 4 during use, and the eyelids are rubbed on the inclined surface of the ridge 4 to always be horizontal. A contact lens for astigmatism, characterized by. 제1항에 있어서 상기 융기부(4)는 1.5mm이하의 두께(h)를 가지면서 렌즈(1)의 가장자리로부터 1mm∼4mm이내에 형성되도록 된 것을 특징으로하는 난시용 콘택트렌즈.The astigmatism contact lens according to claim 1, wherein the raised portion (4) is formed within 1 mm to 4 mm from the edge of the lens (1) while having a thickness h of 1.5 mm or less. 난시용콘택트렌즈의 제조방법에 있어서, 렌즈(1)에다 베이스커브이 중심선으로부터 하측으로 0.1mm∼0.3mm범위이내에 외측커브중심을 갖는 제1프리즘(a)를 형성시킨 다음, 이 렌즈(1)의 양측부위에다 베이스커브의 중심선으로부터 우측 및 좌측으로 각각 0.1mm∼0.3mm범위이내에 외측커브중심을 가지면서, 제1프리즘(a)의 상,하중심선으로부터 좌측 및 우측으로 각각 5°∼90°범위의 각도를 갖는 제2프리즘(b) 및 제3프리즘(c)을 각각 형성시키고, 이어 렌즈(1)의 시각부(2)하측일부에다 최대두께 1.5mm이하를 갖는 경사부(d)를 형성시켜줌으로써, 렌즈(1)의 가장자리 부분이 모두 얇게 형성되면서 시간부(2)의 하단일부분에 가로 방향으로 일정길이만큼의 융기부(4)가 형성되도록 하는 것을 특징으로 하는 난시용 콘택트렌즈 제조방법.In the method for manufacturing an astigmatism contact lens, a lens is formed in the lens 1 with a first prism a having a base curve centered from the center line to the lower side within a range of 0.1 mm to 0.3 mm. 5 ° to 90 ° range from the upper and lower center lines of the first prism (a) to the left and right sides, respectively, with the outer curve center on both sides within 0.1 mm to 0.3 mm from the center line of the base curve to the right and left, respectively. The second prism (b) and the third prism (c) having an angle of, respectively, are formed, and the inclined portion (d) having a maximum thickness of 1.5 mm or less is formed in a lower portion of the viewing portion (2) of the lens (1). By making it, the edge portion of the lens (1) is all thinly formed, the contact lens manufacturing method for astigmatism, characterized in that the ridge portion 4 of a certain length in the horizontal direction is formed in the lower portion of the time portion (2). . ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019880000991A 1988-02-03 1988-02-03 Contact lens for astigmatism and its manufacturing method KR890013500A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019880000991A KR890013500A (en) 1988-02-03 1988-02-03 Contact lens for astigmatism and its manufacturing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019880000991A KR890013500A (en) 1988-02-03 1988-02-03 Contact lens for astigmatism and its manufacturing method

Publications (1)

Publication Number Publication Date
KR890013500A true KR890013500A (en) 1989-09-23

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ID=68233159

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019880000991A KR890013500A (en) 1988-02-03 1988-02-03 Contact lens for astigmatism and its manufacturing method

Country Status (1)

Country Link
KR (1) KR890013500A (en)

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