KR960008351A - Focal lens and its mold - Google Patents

Focal lens and its mold Download PDF

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Publication number
KR960008351A
KR960008351A KR1019940020122A KR19940020122A KR960008351A KR 960008351 A KR960008351 A KR 960008351A KR 1019940020122 A KR1019940020122 A KR 1019940020122A KR 19940020122 A KR19940020122 A KR 19940020122A KR 960008351 A KR960008351 A KR 960008351A
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KR
South Korea
Prior art keywords
curvature
progressive
mold
cavity
circular
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KR1019940020122A
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Korean (ko)
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KR0186066B1 (en
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이병기
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이병기
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Priority to KR1019940020122A priority Critical patent/KR0186066B1/en
Publication of KR960008351A publication Critical patent/KR960008351A/en
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Publication of KR0186066B1 publication Critical patent/KR0186066B1/en

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    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/02—Lenses; Lens systems ; Methods of designing lenses
    • G02C7/06—Lenses; Lens systems ; Methods of designing lenses bifocal; multifocal ; progressive
    • G02C7/061—Spectacle lenses with progressively varying focal power
    • G02C7/063—Shape of the progressive surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00009—Production of simple or compound lenses
    • B29D11/0048—Moulds for lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/02—Lenses; Lens systems ; Methods of designing lenses
    • G02C7/024—Methods of designing ophthalmic lenses
    • G02C7/028—Special mathematical design techniques

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  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Mathematical Physics (AREA)
  • Eyeglasses (AREA)

Abstract

본 발명은 비구면 누진다초점 렌즈에서의 비점수차(非點收差) 및 왜곡수차(歪曲收差)의 현상을 제거하여 렌즈 전면부에 걸쳐 선명한 상을 확보할 수 있는 광학 유효곡율을 갖는 누진다촛점렌즈와 이의 모울드에 관한 것으로 원용부(2)의 요소곡율도는 누진부(3)의 제1요소위치(a1)곡율도와 동일한 수직 및 수평성상의 곡율도(A1, B1)로 형성되고, 상기 누진부(3)의 요소곡율도는 동일한 요소위치(a2∼a1)에서 동일한 수직 및 수평성상의 단계적 누진곡율도(A2∼An-1, B2∼n-1)로 형성되며, 상기 근용부(4)의 요소곡율도는 누진부(3)의 제n요소위치(an)와 동일한 수직 및 수평성상의 곡율도(An,Bn)로 형성되어 이루어져 있다.The present invention has an optically effective curvature that can remove astigmatism and distortion aberrations in an aspherical focal lens and secure a clear image over the front surface of the lens. Regarding the focus lens and the mold thereof, the element curvature of the far end portion 2 is formed with the curvatures A1 and B1 of the same vertical and horizontal properties as those of the first element position a1 of the progressive portion 3, The element curvature of the progressive part 3 is formed of the stepwise progressive curvatures A2 to An-1 and B2 to n-1 of the same vertical and horizontal properties at the same element positions a2 to a1. The element curvature diagram (4) is formed by the curvature diagrams An and Bn having the same vertical and horizontal properties as the n-th element position an of the progressive section 3.

Description

누진다초점 렌즈와 이의 모울드Focal lens and its mold

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

제1도는 본 발명에 따른 누진다초점렌즈의 정면도.1 is a front view of a leaky focal lens according to the present invention;

제3도는 본 발명 렌즈에 있어서, 각 부위의 용소곡율도의 분포도.3 is a distribution diagram of the melting point curvature of each site in the lens of the present invention.

제6(다)와 (라)는 제4도에 대응되는 종래구조로서, 안구운동에 따른 양안의 동적시선 교차점을 나타낸 설명도이다.6 (c) and 6 (d) are conventional structures corresponding to FIG. 4, and are explanatory diagrams showing the intersections of dynamic eyes of both eyes according to eye movements.

Claims (4)

원용부와 누진부 및 근용부로 이루어진 누진다초점렌즈에 있어서, 상기 원용부(2)의 요소곡율도는 누진부(3)의 제1요소위치(a1)곡율도와 동일한 수직 및 수평선상의 곡율도(A1, B1)로 형성되고, 상기 누진부(3)의 요소 곡율도는 동일한 요소위치(a2∼an)에서 동일한 수직 및 수평선상의 단계적 누진곡율도(A2∼An-1, B2∼Bn-1)로 형성되며, 상기 근용부(4)의 요소곡율도는 누진부(3)의 제n요소위치(an)와 동일한 수직 및 수평선상의 곡율도(An∼Bn)으로 형성되어 이루어진 것을 특징으로 하는 누진다촛점 렌즈.In the triangular focal lens consisting of a circular part, a progressive part and a near part, the element curvature of the circular part 2 is equal to the curvature of the first element position a1 of the progressive part 3 on the vertical and horizontal lines ( Formed with A1 and B1, and the curvature of the elements of the progressive part 3 is progressive progressive curvature diagrams A2 to An-1 and B2 to Bn-1 on the same vertical and horizontal lines at the same element positions a2 to an. The element curvature of the approximation portion 4 is formed of a curvature degree (An to Bn) on the same vertical and horizontal lines as the nth element position (an) of the progressive portion (3). Multifocal lens. 캐비티내에 원용부와 누진부 및 근용부가 형성되어 누진다초점 렌즈를 제조하는 모울드에 있어서, 상기 원용부(2)의 캐비티 곡율구조가 누진부(3)와 근용부(4)의 곡율기저로서, 원용부 도수에 따라 다양한 곡율도로 설계되면서 이 원용부(2)의 캐비티 전면적은 균등한 원용단일 곡율로 형성되며, 상기 누진부(3)의 캐비티 곡율구조는 상기 원용부(2)의 캐비티 곡율도와 근용부(4)의 캐비티 곡율도 사이의 곡율도로서, 전면적이 단계적인 누진곡율도를 갖도록 되어 있고, 상기 근용부(4)의 캐비티 곡율구조는 근용가입도의 곡률로서 전면적이 균등한 근용단일 곡율로 형성되어 이루어진 누진다촛점 렌즈의 모울드.In the mold for manufacturing a focal lens, the cavity curvature structure of the circular part 2 is the curvature base of the progressive part 3 and the near part 4 in the mold for producing a focal lens. Designed with various curvatures according to the frequency of the circular part, the entire surface of the cavity of the circular part 2 is formed with an equal circular single curvature, and the cavity curvature structure of the progressive part 3 is a cavity curvature diagram of the circular part 2. The curvature diagram between the cavity curvatures of the approximation section 4, the entire surface is to have a progressive progressive curvature diagram, and the cavity curvature structure of the approximation section 4 is a near end uniformity as the curvature of the approximate joining degree. The mold of the focal lens formed by curvature. 제2항에 있어서, 상기 모울드의 재질은 화학 처리된 유리 내지는 세라믹 재질, 열처리된 메탈크롬, 혹은 인조 사파이어로 된 것을 특징으로 하는 누진다촛점 렌즈의 모울드.The mold of claim 2, wherein the mold is made of chemically treated glass or ceramic, heat treated metal chromium, or artificial sapphire. 제2항에 있어서, 상기 캐비티는 전체 형상이 원형으로서 지름이 약 65㎜∼80㎜의 직경을 갖도록 된 것을 특징으로 하는 누진다촛점 렌즈의 모울드.3. The mold of claim 2, wherein the cavity is circular in shape and has a diameter of about 65 mm to 80 mm. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940020122A 1994-08-16 1994-08-16 Multifocal lens and its mould KR0186066B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940020122A KR0186066B1 (en) 1994-08-16 1994-08-16 Multifocal lens and its mould

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940020122A KR0186066B1 (en) 1994-08-16 1994-08-16 Multifocal lens and its mould

Publications (2)

Publication Number Publication Date
KR960008351A true KR960008351A (en) 1996-03-22
KR0186066B1 KR0186066B1 (en) 1999-05-15

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KR1019940020122A KR0186066B1 (en) 1994-08-16 1994-08-16 Multifocal lens and its mould

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020060445A (en) * 2001-01-11 2002-07-18 문재오 Molding mold and glass mold for manufacturing multi focus eyeglasses lens formed using the same
KR100900090B1 (en) * 2007-07-10 2009-05-28 주식회사 드림옵티칼 Convex Glass Mold For Progressive Addition Lens

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