JP2004029541A - Device for comparing optical distortion of spectacle lens - Google Patents

Device for comparing optical distortion of spectacle lens Download PDF

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Publication number
JP2004029541A
JP2004029541A JP2002188032A JP2002188032A JP2004029541A JP 2004029541 A JP2004029541 A JP 2004029541A JP 2002188032 A JP2002188032 A JP 2002188032A JP 2002188032 A JP2002188032 A JP 2002188032A JP 2004029541 A JP2004029541 A JP 2004029541A
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Japan
Prior art keywords
lens
distortion
spectacle
lenses
spectacle lens
Prior art date
Legal status (The legal status 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 status listed.)
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JP2002188032A
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Japanese (ja)
Inventor
Hitoshi Tomita
冨田 斉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Optical Products Co Ltd
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Seiko Optical Products Co Ltd
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Filing date
Publication date
Application filed by Seiko Optical Products Co Ltd filed Critical Seiko Optical Products Co Ltd
Priority to JP2002188032A priority Critical patent/JP2004029541A/en
Publication of JP2004029541A publication Critical patent/JP2004029541A/en
Withdrawn legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a device which easily compares optical characteristics of spectacle lenses. <P>SOLUTION: A plurality of spectacle lenses 7 different in characteristics are attached to one of two parallel members of a unit 5 having a channel-shaped section opened to a light source, and a geometrical pattern 15 for detecting characteristics is drawn on the other, and characteristics of respective spectacle lenses 7 are compared in accordance with distortions of the geometrical pattern viewed through the spectacle lenses. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は複数の眼鏡レンズの光学的な歪みを対比する装置に関する。
【0002】
【従来の技術】
眼鏡レンズの光学的特性を知るための装置として特開平11−119172号公報に提示された装置は、眼鏡を掛けて見える画像をパソコン等を用いて表示することによりその状態を疑似的に体験することができるようにしたものであるが、これには、パソコンや画像表示が可能な表示装置といった高度な装置を必要とするほか、同時に他の眼鏡レンズ等を対比することができないといった問題を有している。
【0003】
【発明が解決しようとする課題】
本発明はこのような問題に鑑みてなされたもので、その目的とするところは、眼鏡レンズが有する光学的な歪みを容易に対比することのできる簡単な装置を提供することにある。
【0004】
【課題を解決するための手段】
すなわち、本発明はかかる課題を達成するための、眼鏡レンズの光学的な歪みの対比装置として、光源に向けて開いた断面コの字形をなす歪み検知ユニットの、互いに平行に対向し合う2部材のうちの一方の部材に、少なくとも2種の眼鏡レンズを角度変更自在に保持する保持部を設けるとともに、他方の部材には、複数の眼鏡レンズの配列ピッチ毎に同じ幾何学模様を画いた歪み検知部を設けるようにしたものである。
【0005】
【発明の実施の形態】
そこで以下に本発明の実施例について説明する。
図1乃至図3は本発明の一実施例を示したものである。
【0006】
図において符号1は、幾つかの特性検知ユニット5を個々に着脱し得るようスライド自在に保持した基台で、この基台1は、ウィンドケース等の上に載置した状態で保持した眼鏡レンズ7を顧客が斜め上方から見ることができるよう、底板2と、底板2の後方に斜めに立ち上げた支持板3とによって構成されている。
【0007】
一方、基台1上に斜めに載置された特性検知ユニット5は、室内の光源からの光を取入れることができるよう上方に開口した断面コの字型に形成され、15cm乃至20cmの間隔をおいて平行に配設された2枚の板のうちの一方は、眼鏡レンズ7を保持する保持板6をなし、また他方の板は、眼鏡レンズ7の配設ピッチ毎に同じ幾何学模様15を画いた特性検知板14として構成されている。
【0008】
この実施例では3組の特性検知ユニット5を備えたものとして構成され、これらの各レンズ保持板6…には、比較が可能なように、例えば球面設計レンズ7a、非球面設計レンズ7b及び両面非球面設計レンズ7cという異なる眼鏡レンズがそれぞれ保持枠8を介して角度を変え得るように嵌め込まれている。
【0009】
図2は眼鏡レンズ7の角度を変える機構について示したもので、3つのレンズ保持板6…には、各レンズ保持部の下方に共通の手動操作杆10が横向きにスライド自在に挿通されていて、ここに穿設したレンズ配列ピッチ毎の各係合孔11を保持枠8の軸部の一部に設けた各突起9に係合させることにより手動操作杆10のスライド操作によって、個々の眼鏡レンズ7を縦軸VL回りに同時に同じ向きに回動させて、眼鏡を掛けたままで視線を横にずらせた状態を再現することができるように構成されている。
【0010】
これに対して特性パターンを画いた特性検知板14には、各眼鏡レンズ7の球面収差が顕出できるよう各眼鏡レンズ7の配設ピッチ毎に等しい幾何学模様15が画かれ、さらに、その中心の線及び升目には他と区別し得る色が付されて見易く構成されている。
【0011】
このように構成された装置は店頭のウィンドウ等の上に載置され、眼鏡レンズ7を通した幾何学模様15が顧客の目に触れるように構成されている。
【0012】
したがって、これら3種の眼鏡レンズ7を通して適正の距離を隔てた特性検知板14上の菱形模様(図1)は、球面設計レンズ7aにおいては、図3(a)に示したように、周辺が湾曲した糸巻き型の歪みを有する画像として、かつ鮮明度がやや欠けた画像として捕えられ、また、非球面設計レンズ7bでは周辺部の歪みが改善されて、解明度も向上した画像として現れ(図3(b))、さらに、両面非球面設計レンズ7cでは、非球面設計レンズ7bで取り切れなかった歪みがさらに改善され、解明度も大幅に向上した画像として理解されて(図3(c))、この実施例では、両面非球面設計レンズ7cが眼鏡着用者の目により好ましい商品であることを顧客に印象付けられることになる。
【0013】
さらに、これら3種の眼鏡レンズ7の光学的な特性を詳しく検知する場合には、対象となる特性検知ユニット5を、図1に示したように,基台1からスライド式に外すことにより、幾何学模様15を眼鏡レンズ7aの直上部から見ることによって詳しく観察することができる。
【0014】
またさらに、眼鏡を装着した状態で視線を側方にずらしたような場合の見え方を知りたい場合には、手動検知杆10を側方にスライドさせ、ここに穿設した各係合孔11をレンズ保持枠8の軸に設けた突起9に係合させることにより全ての眼鏡レンズ2を等しく偏向させて、眼鏡レンズ7の中心から外れた部分を通して幾何学模様15の歪みの程度から各眼鏡レンズ7の優劣を判断することができる。
【0015】
なお、この場合においても、所用の眼鏡レンズ7の固縁部の像の歪みを知りたいときは、この眼鏡レンズ7を他とは独立に手で回動させることによって調べることができる。
【0016】
図4は本発明の第2の実施例を示したものである。
この図において符号25で示した特性検知ユニットは、載置台としてのウィンドウの下から光を得るように下方に開いた断面コの字形をなしていて、その平行に対待した一方の板体は、多焦点レンズ系としての従来の外面累進設計レンズ27aと内面累進屈折力レンズ27bをそれぞれ水平軸線HL周りに起伏自在に取付けた眼鏡レンズ保持板26をなしており、また、これに対する他方の板体は、縦横等しい間隔の升目模様35を画いた特性検知板30をなしていて、水平に延びるガイド孔33を介して支点ピン34に摺動自在に取付けられている。
【0017】
この実施例では、眼鏡レンズ27の中心に記した「十」印Oを特性検知板30の横方向中央に画いた赤線31に合わせた上、その特性検知板30を左右に移動させることにより、赤線31の下方に画いた近距離像を意味する赤の四角い升目32、32がどれほど変形するかによって、外面累進設計レンズ27aと内面累進屈折力レンズ27bのいずれの多焦点レンズを着用した場合に、階段を上り降りする際の危険性等を知ることができるが、この実施例において、さらにこれら2つの眼鏡レンズ27を水平軸線周りに回動させることによっても、周線の像の歪みを知ることができる。
【0018】
また本発明のさらに別の実施例としては、特性検知板を、その背面に設けたモータによって左右に往復動させることにより、多焦点レンズの像の歪みを対比することができるデモンストレーション用の特性検知装置として構成することもできる。
【0019】
【発明の効果】
以上述べたように本発明によれば、光源に向けてコの字型に開いた特性検知ユニットの、互いに平行に対峙する2部材のうちの一方の部材に、少なくとも2種の特性を異にする眼鏡レンズを保持させる一方、他方の部材には、眼鏡レンズの配列ピッチ毎に同じ幾何学模様を設けるようにしたもので、各眼鏡レンズを通して正面からあるいは斜め方向から見える幾何学模様の歪みからそれぞれの眼鏡レンズの光学的特性を対比することによって新たに購入する眼鏡レンズを選ぶことができ、また、所定の特性検知ユニットを他と分離できるようにすることによって、その眼鏡レンズの特性を独立に詳しく調べることもできる。
【0020】
またさらに、これらの眼鏡レンズを共通の部材を介して縦軸廻りに角度を変え得るようにすれば、眼鏡を装着した状態で斜めの方向を見た状態を再現することによって、その周縁部の歪みをも他と同時に対比することができ、また、特性検知部材を変位させるようにすれば、その像の歪みから各種の多焦点レンズの特性をも知ることができる。
【図面の簡単な説明】
【図1】本発明の一実施例を示す装置の傾斜図である。
【図2】(a)(b)は、同上装置における眼鏡レンズの角度変更機構についての傾斜図と、その要部を拡大して示した傾斜図である。
【図3】(a)(b)(c)は、球面設計レンズ、非球面設計レンズ及び両面非球面設計レンズの各対象物イメージについての図である。
【図4】本発明の第2の実施例を示す装置の傾斜図である。
【符号の説明】
1 基台
5、25 特性検知ユニット
6、26 レンズ保持板
7、27 眼鏡レンズ
10 手動操作杆
14 特性検知板
15、30 幾何学模様
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an apparatus for comparing optical distortion of a plurality of spectacle lenses.
[0002]
[Prior art]
A device disclosed in Japanese Patent Application Laid-Open No. H11-119172 as a device for knowing the optical characteristics of a spectacle lens allows a user to simulate the state of the spectacles by displaying an image that is visible with spectacles on a personal computer or the like. This requires advanced devices such as a personal computer and a display device capable of displaying images, and at the same time has the problem that other eyeglass lenses cannot be compared. are doing.
[0003]
[Problems to be solved by the invention]
The present invention has been made in view of such a problem, and an object of the present invention is to provide a simple device that can easily compare optical distortion of an eyeglass lens.
[0004]
[Means for Solving the Problems]
That is, the present invention, as a device for comparing optical distortion of a spectacle lens, for solving such a problem, comprises two members of a distortion detecting unit having a U-shaped cross section opened toward a light source and facing each other in parallel. One of the members is provided with a holding portion for holding at least two kinds of spectacle lenses so that the angles can be freely changed, and the other member has a distortion in which the same geometric pattern is drawn for each arrangement pitch of the plurality of spectacle lenses. The detection unit is provided.
[0005]
BEST MODE FOR CARRYING OUT THE INVENTION
Therefore, embodiments of the present invention will be described below.
1 to 3 show one embodiment of the present invention.
[0006]
In the figure, reference numeral 1 denotes a base that slidably holds several characteristic detection units 5 so that they can be individually attached and detached. This base 1 is a spectacle lens that is held while placed on a wind case or the like. The bottom plate 2 and the support plate 3 which is set up obliquely behind the bottom plate 2 so that a customer can see it from obliquely above.
[0007]
On the other hand, the characteristic detecting unit 5 obliquely mounted on the base 1 is formed in a U-shaped cross section opened upward so that light from a light source in the room can be taken in, and has a spacing of 15 cm to 20 cm. One of the two plates arranged in parallel with each other forms a holding plate 6 for holding the spectacle lens 7, and the other plate has the same geometric pattern at every arrangement pitch of the spectacle lens 7. 15 is configured as the characteristic detection plate 14.
[0008]
In this embodiment, three lens detection units 5 are provided. Each lens holding plate 6 has, for example, a spherical design lens 7a, an aspheric design lens 7b, and a double-sided design. Different spectacle lenses called aspherical design lenses 7c are fitted through the holding frames 8 so that the angles can be changed.
[0009]
FIG. 2 shows a mechanism for changing the angle of the spectacle lens 7, in which a common manual operation rod 10 is slidably inserted laterally below three lens holding plates 6 below each lens holding portion. The individual eyeglasses are slid by operating the manual operation rod 10 by engaging the respective engagement holes 11 for each lens arrangement pitch formed here with the respective projections 9 provided on a part of the shaft of the holding frame 8. The lens 7 is simultaneously rotated around the vertical axis VL in the same direction, so that a state in which the line of sight is shifted laterally while wearing glasses can be reproduced.
[0010]
On the other hand, on the characteristic detecting plate 14 on which the characteristic pattern is drawn, the same geometrical pattern 15 is drawn at every arrangement pitch of each spectacle lens 7 so that the spherical aberration of each spectacle lens 7 can be revealed. The center line and the cells are colored so that they can be distinguished from the others, so that they are easy to see.
[0011]
The device configured in this manner is placed on a window in a store or the like, and the geometric pattern 15 passing through the spectacle lens 7 is configured to be seen by the customer.
[0012]
Therefore, the diamond-shaped pattern (FIG. 1) on the characteristic detection plate 14 at an appropriate distance through these three types of spectacle lenses 7 has a peripheral shape in the spherical design lens 7a as shown in FIG. The image is captured as an image having a curved pincushion type distortion and an image with a little lack of sharpness, and appears as an image in which the aspherical design lens 7b has improved peripheral distortion and improved clarity (FIG. 3 (b)) Further, in the double-sided aspherical design lens 7c, the distortion that could not be removed by the aspherical design lens 7b is further improved, and the image is understood as a greatly improved resolution (FIG. 3 (c)). In this embodiment, the customer can be impressed that the double-sided aspherical design lens 7c is a product more preferable to the eye of the spectacle wearer.
[0013]
Further, when the optical characteristics of these three types of spectacle lenses 7 are to be detected in detail, the target characteristic detection unit 5 can be removed from the base 1 in a sliding manner as shown in FIG. It is possible to observe the geometrical pattern 15 in detail by viewing it from directly above the spectacle lens 7a.
[0014]
Further, when the user wants to know how to look when the line of sight is shifted to the side while wearing the glasses, the manual detection rod 10 is slid to the side, and each of the engagement holes 11 Is engaged with the projection 9 provided on the axis of the lens holding frame 8 to deflect all the spectacle lenses 2 equally, and the degree of distortion of the geometrical pattern 15 passes through a part of the spectacle lens 7 which is off the center. The superiority of the lens 7 can be determined.
[0015]
In this case as well, if it is desired to know the distortion of the image of the fixed edge of the required spectacle lens 7, it can be checked by manually rotating the spectacle lens 7 independently of the others.
[0016]
FIG. 4 shows a second embodiment of the present invention.
The characteristic detecting unit indicated by reference numeral 25 in this figure has a U-shaped cross section opened downward so as to obtain light from under a window as a mounting table, and one of the plate members that is parallel to the plate is A spectacle lens holding plate 26 in which a conventional outer progressive design lens 27a and an inner progressive power lens 27b as a multifocal lens system are respectively mounted so as to be able to undulate around a horizontal axis HL, and the other plate corresponding thereto. The body forms a characteristic detection plate 30 having a grid pattern 35 equally spaced vertically and horizontally, and is slidably mounted on a fulcrum pin 34 via a horizontally extending guide hole 33.
[0017]
In this embodiment, the “O” mark O written at the center of the spectacle lens 27 is aligned with the red line 31 drawn in the center of the characteristic detection plate 30 in the horizontal direction, and the characteristic detection plate 30 is moved left and right. Depending on how much the red squares 32, 32, which represent short-range images drawn below the red line 31, are deformed, any one of the outer progressive design lens 27a and the inner progressive power lens 27b is worn. In this case, it is possible to know the danger of going up and down the stairs. In this embodiment, however, by further rotating the two spectacle lenses 27 around the horizontal axis, the distortion of the image of the circumferential line can be obtained. You can know.
[0018]
Further, as another embodiment of the present invention, a characteristic detection plate for demonstration which can compare the distortion of the image of the multifocal lens by reciprocating the characteristic detection plate left and right by a motor provided on the back surface thereof. It can also be configured as a device.
[0019]
【The invention's effect】
As described above, according to the present invention, at least two types of characteristics are differently assigned to one of the two members of the characteristic detection unit opened in a U-shape toward the light source and facing each other in parallel. While holding the spectacle lens, the other member is provided with the same geometric pattern for each arrangement pitch of the spectacle lens. By comparing the optical characteristics of each spectacle lens, a newly purchased spectacle lens can be selected, and by allowing a predetermined characteristic detection unit to be separated from the others, the characteristics of the spectacle lens can be independent. You can find out more in detail.
[0020]
Furthermore, if these spectacle lenses can be changed in angle about the vertical axis through a common member, by reproducing the state of oblique viewing with the spectacles attached, the peripheral edge of the The distortion can be compared with the others simultaneously, and if the characteristic detecting member is displaced, the characteristics of various multifocal lenses can be known from the distortion of the image.
[Brief description of the drawings]
FIG. 1 is a perspective view of an apparatus showing one embodiment of the present invention.
2 (a) and 2 (b) are a perspective view of an eyeglass lens angle changing mechanism in the above device and an enlarged perspective view of a main part thereof.
FIGS. 3A, 3B, and 3C are diagrams illustrating respective object images of a spherical design lens, an aspheric design lens, and a double-sided aspheric design lens.
FIG. 4 is a perspective view of an apparatus showing a second embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Base 5, 25 Characteristic detection unit 6, 26 Lens holding plate 7, 27 Eyeglass lens 10 Manual operation rod 14 Characteristic detection plate 15, 30 Geometric pattern

Claims (5)

光源に向けて開いた断面コの字形をなす歪み検知ユニットの、互いに平行に対向し合う2部材のうちの一方の部材に、少なくとも2種の眼鏡レンズを角度変更自在に保持する保持部を設けるとともに、他方の部材に、前記複数の眼鏡レンズの配列ピッチ毎に同じ幾何学模様を画いた歪み検知部を設けたことを特徴とする眼鏡レンズの光学的な歪みの対比装置。A distortion detecting unit having a U-shaped cross section opened toward the light source is provided with a holding portion for holding at least two kinds of spectacle lenses at an angle changeable in one of two members facing each other in parallel. An optical distortion contrast device for an eyeglass lens, wherein the other member is provided with a distortion detection unit that draws the same geometric pattern for each arrangement pitch of the plurality of eyeglass lenses. 断面コの字形をなす前記歪み検知ユニットを、対応する前記レンズ保持部と前記歪み検知部毎に他と分離し得るようにしたことを特徴とする請求項1記載の眼鏡レンズの光学的な歪みの対比装置。2. The optical distortion of a spectacle lens according to claim 1, wherein the distortion detection unit having a U-shaped cross section can be separated from each other for each of the corresponding lens holding unit and the distortion detection unit. Contrast device. 前記一方の部材に、共通の手動操作部材を介して少なくとも2種の眼鏡レンズを縦の軸線廻りに角度変更自在に取付けたことを特徴とする請求項1記載の眼鏡レンズの光学的な歪みの対比装置。2. The optical distortion of an eyeglass lens according to claim 1, wherein at least two types of eyeglass lenses are attached to the one member via a common manual operation member so that the angle can be changed around a vertical axis. Contrast device. 前記一方の部材に、共通の手動操作部材を介して少なくとも2種の眼鏡レンズを横の軸線廻りに起伏自在に取付けたことを特徴とする眼鏡レンズの光学的な歪みの対比装置。An apparatus for comparing optical distortion of a spectacle lens, wherein at least two types of spectacle lenses are attached to said one member via a common manual operation member so as to be able to undulate around a horizontal axis. 前記他方の部材に、前記歪み検知部を前記複数の眼鏡レンズの配列方向に変位自在に取付けたことを特徴とする眼鏡レンズの光学的な歪みの対比装置。An apparatus for comparing optical distortion of a spectacle lens, wherein the distortion detection unit is attached to the other member so as to be displaceable in an arrangement direction of the plurality of spectacle lenses.
JP2002188032A 2002-06-27 2002-06-27 Device for comparing optical distortion of spectacle lens Withdrawn JP2004029541A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006288887A (en) * 2005-04-13 2006-10-26 Nitto Denko Corp Adhesive skin patch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006288887A (en) * 2005-04-13 2006-10-26 Nitto Denko Corp Adhesive skin patch

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