WO1998001787A1 - Progressives brillenglas - Google Patents
Progressives brillenglas Download PDFInfo
- Publication number
- WO1998001787A1 WO1998001787A1 PCT/DE1997/001425 DE9701425W WO9801787A1 WO 1998001787 A1 WO1998001787 A1 WO 1998001787A1 DE 9701425 W DE9701425 W DE 9701425W WO 9801787 A1 WO9801787 A1 WO 9801787A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- spectacle lens
- main line
- lens according
- refractive index
- astigmatism
- Prior art date
Links
Classifications
-
- 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
-
- 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
Definitions
- the invention relates to a progressive spectacle lens according to the preamble of patent claim 1.
- the known generic progressive spectacle lenses have one or two surfaces with a continuously varying refractive index (progressive surface).
- the value BF is higher by the value Add [dpt] of the addition than the surface refractive index BK in the lower region of the distant part.
- the course of the sinuous line which is also referred to below as the main line, is selected such that it coincides at least approximately with the main line of sight when the gaze is lowered, ie the point of penetration of the line of sight when the gaze is lowered through the surface with a continuously varying refractive index.
- the surface on the eye side is spherical or aspherical or, in the case of astigmatic prescription, is toric or atoric.
- the far vision zone is comparatively large, so that it allows the glasses wearer a good overview of a large area without turning the head.
- the near vision zone is comparatively narrow, so that even when reading a newspaper, head turns are required to view several columns.
- glasses that have a negative effect in the far vision zone and are made of a high-index material have a particularly narrow near vision zone.
- the invention is based on the object of a progressive spectacle lens, which can have a negative effect particularly in the distance reference point and made of a material with a refractive index or refractive index> 1.58 is manufactured to indicate that has a comparatively wide near vision zone.
- the amount of surface astigmatism of at least one of the surfaces contributing to the change in refractive index along at least one section of the spectacle lens with a horizontal plane has a local maximum that is not more than 4 mm, preferably no more than 2 mm from the main line, and at least one local minimum which is not on the main line and whose distance from the main line is greater than that of the local maximum.
- the concept of the inventive progressive spectacle lens breaks so with the conventional procedure:
- the main line is designed as a so-called navel line, i.e. as a sequence of points with a flat astigmatism of 0 dpt
- DE-C-30 16 935 teaches in particular that the astigmatism in the progression zone should reach a maximum starting from the value 0 dpt at the lower edge of the far vision zone m of the progression zone and then again to the value 0 dpt in the upper region of the near vision zone should fall off.
- a far vision zone is provided, which is arranged in the upper part of the spectacle lens, and in which the near vision zone (s) is (are) arranged in the lower part of the spectacle lens
- the horizontal section or sections on which a local maximum of the amount of surface astigmatism occurs in the lower part of the Progression zone and / or in the upper part of the close range (claim 4).
- the line on which the magnitude of the total astigmatism - not the area astigmatism - has the value 0.5 dpt is assumed as the boundary line of the near vision zone.
- the concept according to the invention inevitably means that the main line, at least in the lower region of the progression zone and in the upper region of the near vision zone, is not a navel line. It is therefore particularly advantageous if the surface astigmatism in the lower region of the distant part increases approximately linearly along the main line. This results in a "soft" transition from the "essentially flat astigmatism-free" far vision zone, in which there is no or only a little flat astigmatism on the main line and in a large surrounding area, to the parts of the area in which the Main line has a flat astigmatism.
- the transition can take place according to claim 9 in that the slope of the function of surface astigmatism on the main line is a function of the base curve and the addition.
- the constancy of the use value of the refractive index enables the wearer to use the entire near part without any change in accommodation. This makes it possible, for example, to work particularly fatigue-free at the desk (claim 13).
- the concept according to the invention can of course also be implemented in spectacle lenses in which both surfaces contribute to the change in refractive index.
- Fig. Lb the slope of the horizontal sections along the main line for this lens
- FIG. 1 a shows a representation according to FIG. 1 a for a spectacle lens with a base curve of 2.3 dpt, an addition of 2.0 dpt and a refractive index of 1.807
- 3 shows a representation according to FIG. 1 a for a spectacle lens with a base curve of 2.3 dpt, an addition of 3.0 dpt and a refractive index of 1.807
- FIG. 4 shows a representation according to FIG. 1 a for a spectacle lens with a base curve of 3.2 dpt, an addition of 1.0 dpt and a refractive index of 1.807, and
- FIG. 5 shows a representation according to FIG. 1 a for a spectacle lens with a base curve of 3.2 dpt, an addition of 2.0 dpt and a refractive index of 1.807.
- FIGS. 1 The properties of a first exemplary embodiment of em spectacle lens according to the invention are shown in FIGS.
- the coordinate system used is consistently an x, y coordinate system in which the y-axis in the position of use is the vertical axis.
- FIGS. 1 a, 1 c and 1d The following sizes are indicated in FIGS. 1 a, 1 c and 1d:
- the first exemplary embodiment shown in FIGS. 1 a to 1 a has a refractive index BK in the lower region of the far vision zone (also referred to as a base curve) of 2.3 dpt, an addition add, i.e. an increase in the refractive index up to the near part of 1.0 dpt and a refractive index (refractive index) of 1.807.
- the spectacle lens shown is a “right” spectacle lens: the projection of the nasal pivoting of the main line HL onto the x, y plane is shown in FIG.
- the invention is thus comprehensible even without further information.
- the flat astigmatism ⁇ S has two local minima, neither of which lie on the main line.
- the surface astigmatism ⁇ S shown in FIG. 1 shows that the near vision zone is significantly broadened compared to known spectacle lenses. It can also be seen that the flat astigmatism has a minimum in the upper part of the progression zone and in the distant part on the main line.
- Fig. 1b shows that the slope of the horizontal sections at the location of the main line as a function of y is not monotonic.
- the respective refractive indices and additions are given in the brief description of the individual figures.
- FIGS. 2 to 5 show, for example, that the surface astigmatism in the lower region of the distant part increases approximately linearly along the main line, the slope of the function of the surface astigmatism on the main line being a function of the base curve and the addition.
- this description speaks of at least one area (far vision zone) whose refractive power is suitable for looking into the distance, it does not necessarily mean that this The area for seeing is “infinite”, it can also be optimized for seeing at shorter distances, such as 2 m, as long as these distances are only significantly greater than the distance for which the near vision zone is designed.
- left glasses that is to say glasses arranged in front of the left eye, without difficulty.
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP97931709A EP0864112B1 (de) | 1996-07-05 | 1997-07-07 | Progressives brillenglas |
AU35383/97A AU713017B2 (en) | 1996-07-05 | 1997-07-07 | Progressive ophthalmic lenses |
AT97931709T ATE236414T1 (de) | 1996-07-05 | 1997-07-07 | Progressives brillenglas |
DE19780626T DE19780626D2 (de) | 1996-07-05 | 1997-07-07 | Progressives Brillenglas |
DE59709693T DE59709693D1 (de) | 1996-07-05 | 1997-07-07 | Progressives brillenglas |
JP50465398A JP4386966B2 (ja) | 1996-07-05 | 1997-07-07 | 累進レンズ |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19627006.5 | 1996-07-05 | ||
DE19627006 | 1996-07-05 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/370,246 Continuation US6213603B1 (en) | 1996-07-05 | 1999-08-09 | Progressive ophthalmic lens |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998001787A1 true WO1998001787A1 (de) | 1998-01-15 |
Family
ID=7798950
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1997/001425 WO1998001787A1 (de) | 1996-07-05 | 1997-07-07 | Progressives brillenglas |
Country Status (8)
Country | Link |
---|---|
US (1) | US6213603B1 (de) |
EP (1) | EP0864112B1 (de) |
JP (1) | JP4386966B2 (de) |
AT (1) | ATE236414T1 (de) |
AU (1) | AU713017B2 (de) |
DE (3) | DE29724752U1 (de) |
ES (1) | ES2206732T3 (de) |
WO (1) | WO1998001787A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6354704B2 (en) | 1998-03-18 | 2002-03-12 | Asahi Kogaku Kogyo Kabushiki Kaisha | Progressive power spectacle lens |
WO2004066020A1 (de) * | 2003-01-21 | 2004-08-05 | Rodenstock Gmbh | Doppelprogressives brillenglas |
WO2014019968A1 (en) * | 2012-07-31 | 2014-02-06 | Essilor International (Compagnie Generale D'optique) | Progressive ophthalmic lens |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1216432B1 (de) | 1999-10-01 | 2009-03-04 | Carl Zeiss Vision Australia Holdings Ltd. | Progressive linse |
US6609793B2 (en) * | 2000-05-23 | 2003-08-26 | Pharmacia Groningen Bv | Methods of obtaining ophthalmic lenses providing the eye with reduced aberrations |
US8020995B2 (en) | 2001-05-23 | 2011-09-20 | Amo Groningen Bv | Methods of obtaining ophthalmic lenses providing the eye with reduced aberrations |
US20030078657A1 (en) * | 2001-01-25 | 2003-04-24 | Gholam-Reza Zadno-Azizi | Materials for use in accommodating intraocular lens system |
US7087080B2 (en) * | 2001-01-25 | 2006-08-08 | Visiogen, Inc. | Materials for use in intraocular lens system |
KR20030060783A (ko) * | 2002-01-07 | 2003-07-16 | 펜탁스 가부시키가이샤 | 누진굴절력 렌즈 |
ES2518927T3 (es) * | 2002-06-17 | 2014-11-05 | Essilor International (Compagnie Generale D'optique) | Modelado de una superficie de una lente oftálmica |
JP2006528377A (ja) * | 2003-05-19 | 2006-12-14 | エシロール アンテルナシオナル (コンパニー ジェネラレ ドプテイク) | 4区画の多焦点メガネレンズ |
FR2858693B1 (fr) * | 2003-08-08 | 2005-10-28 | Essilor Int | Procede de determination d'une lentille ophtalmique utilisant une prescription d'astigmatisme en vision de loin et en vision de pres |
JP6470706B2 (ja) * | 2016-06-06 | 2019-02-13 | ホヤ レンズ タイランド リミテッドHOYA Lens Thailand Ltd | 眼鏡レンズの設計方法、眼鏡レンズの製造方法 |
EP3683618A1 (de) * | 2019-01-21 | 2020-07-22 | Essilor International (Compagnie Generale D'optique) | Systeme und verfahren zum simulieren einer optischen störung |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0039497A2 (de) * | 1980-05-02 | 1981-11-11 | Firma Carl Zeiss | Multifokale Brillenlinse mit gebietsweise gleitendem Brechwert |
DE3635777A1 (de) * | 1986-10-21 | 1988-05-05 | Rodenstock Optik G | Progressives brillenglas |
EP0452802A2 (de) * | 1990-04-19 | 1991-10-23 | Firma Carl Zeiss | Gleitsichtfläche für eine Gleitsichtbrillenlinse |
WO1995027229A1 (de) * | 1994-03-30 | 1995-10-12 | Optische Werke G. Rodenstock | Serie progressiver brillengläser |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1991001508A1 (de) * | 1989-07-17 | 1991-02-07 | Optische Werke G. Rodenstock | Progressives brillenglas mit positiver fernteil-wirkung |
US5327181A (en) * | 1993-01-12 | 1994-07-05 | Gentex Optics, Inc. | Progressive lens for specialty and occupational use |
WO1996011421A1 (fr) * | 1994-10-06 | 1996-04-18 | Seiko Epson Corporation | Verres optiques a courbure progressive multifoyer et leur procede de fabrication |
-
1997
- 1997-07-07 DE DE29724752U patent/DE29724752U1/de not_active Expired - Lifetime
- 1997-07-07 DE DE59709693T patent/DE59709693D1/de not_active Expired - Lifetime
- 1997-07-07 AT AT97931709T patent/ATE236414T1/de not_active IP Right Cessation
- 1997-07-07 EP EP97931709A patent/EP0864112B1/de not_active Expired - Lifetime
- 1997-07-07 ES ES97931709T patent/ES2206732T3/es not_active Expired - Lifetime
- 1997-07-07 DE DE19780626T patent/DE19780626D2/de not_active Expired - Lifetime
- 1997-07-07 WO PCT/DE1997/001425 patent/WO1998001787A1/de active IP Right Grant
- 1997-07-07 JP JP50465398A patent/JP4386966B2/ja not_active Expired - Fee Related
- 1997-07-07 AU AU35383/97A patent/AU713017B2/en not_active Ceased
-
1999
- 1999-08-09 US US09/370,246 patent/US6213603B1/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0039497A2 (de) * | 1980-05-02 | 1981-11-11 | Firma Carl Zeiss | Multifokale Brillenlinse mit gebietsweise gleitendem Brechwert |
DE3635777A1 (de) * | 1986-10-21 | 1988-05-05 | Rodenstock Optik G | Progressives brillenglas |
EP0452802A2 (de) * | 1990-04-19 | 1991-10-23 | Firma Carl Zeiss | Gleitsichtfläche für eine Gleitsichtbrillenlinse |
WO1995027229A1 (de) * | 1994-03-30 | 1995-10-12 | Optische Werke G. Rodenstock | Serie progressiver brillengläser |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6354704B2 (en) | 1998-03-18 | 2002-03-12 | Asahi Kogaku Kogyo Kabushiki Kaisha | Progressive power spectacle lens |
KR100454604B1 (ko) * | 1998-03-18 | 2004-11-03 | 펜탁스 가부시키가이샤 | 누진다초점 안경렌즈 |
DE19912200B4 (de) * | 1998-03-18 | 2015-02-26 | Seiko Optical Products Co., Ltd. | Brillenglas mit progressiver Brechkraftverteilung |
WO2004066020A1 (de) * | 2003-01-21 | 2004-08-05 | Rodenstock Gmbh | Doppelprogressives brillenglas |
WO2014019968A1 (en) * | 2012-07-31 | 2014-02-06 | Essilor International (Compagnie Generale D'optique) | Progressive ophthalmic lens |
CN104520756A (zh) * | 2012-07-31 | 2015-04-15 | 埃西勒国际通用光学公司 | 渐进式多焦点眼镜片 |
US9791718B2 (en) | 2012-07-31 | 2017-10-17 | Essilor International (Compagnie Generale D'optique) | Progressive multifocal ophthalmic lens designed to inhibit progressive myopia of the wearer |
Also Published As
Publication number | Publication date |
---|---|
JPH11513139A (ja) | 1999-11-09 |
DE19780626D2 (de) | 1998-07-02 |
AU3538397A (en) | 1998-02-02 |
DE29724752U1 (de) | 2004-03-11 |
ES2206732T3 (es) | 2004-05-16 |
DE59709693D1 (de) | 2003-05-08 |
EP0864112A1 (de) | 1998-09-16 |
AU713017B2 (en) | 1999-11-18 |
EP0864112B1 (de) | 2003-04-02 |
US6213603B1 (en) | 2001-04-10 |
ATE236414T1 (de) | 2003-04-15 |
JP4386966B2 (ja) | 2009-12-16 |
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