TWM592524U

TWM592524U - Presbyopia varifocal lens

Info

Publication number: TWM592524U
Application number: TW108215323U
Authority: TW
Inventors: 陳慶法; 黃建盛
Original assignee: 基鼎光學科技有限公司; 篙鼎光學科技有限公司; 國立雲林科技大學
Priority date: 2019-11-19
Filing date: 2019-11-19
Publication date: 2020-03-21

Abstract

一種老花變焦鏡片，至少包含：鏡片本體，具有一第一表面及一第二表面位於相對側；平光區及變焦區。平光區位於鏡片本體的中心處。平光區無屈光度。變焦區圍繞平光區，變焦區為正屈光度。本創作的老花變焦鏡片符合人們配戴眼鏡和用眼習慣，看遠處時，平光區恰好處於人眼平視瞳孔中心，可用以平視看遠處，而變焦區則可用來看近處。 A presbyopic zoom lens, at least comprising: a lens body, having a first surface and a second The surface is on the opposite side; flat light zone and zoom zone. The flat zone is located at the center of the lens body. There is no diopter in the flat zone. The zoom area surrounds the flat light area, and the zoom area is positive diopter. The presbyopic zoom lens of this creation is in line with people's habit of wearing glasses and using their eyes. When looking at a distance, the flat light area is just right at the center of the pupil of the human eye looking up, and can be used to look at the distance from the head, while the zoom area can be used to see the near. .

Description

Presbyopic zoom lens

本創作係一種變焦鏡片，且特別是一種老花變焦鏡片。 This creation is a zoom lens, and especially a presbyopic zoom lens.

按，一般年長者普遍皆會有視力退化的現象，因此觀看辨識細小的文字或物件時，往往需要藉助放大鏡片或老花鏡片輔助觀看，但是這種單光鏡片又不適合看遠處，因此需要拔下眼睛才能清遠方事物，所以造成生活上之極大不便時。 According to the press, the elderly generally suffer from vision deterioration. Therefore, when viewing small text or objects, they often need to use a magnifying glass or presbyopia lenses to assist in viewing, but this single-light lens is not suitable for seeing far away, so it is necessary. You can clear distant things by pulling out your eyes, so it causes great inconvenience in life.

有鑑於此，本創作的目的係提供一種老花變焦鏡片，用以解決上述問題。 In view of this, the purpose of this creation is to provide a presbyopic zoom lens to solve the above problems.

為了達到上述目的，本創作提供一種老花變焦鏡片，至少包含：一鏡片本體，具有一第一表面及一第二表面位於相對側；平光區及變焦區。平光區位於鏡片的中心處，其中平光區無屈光度。變焦區圍繞平光區，變焦區為正屈光度。 In order to achieve the above purpose, the present invention provides a presbyopic zoom lens, which at least includes: a lens body having a first surface and a second surface on opposite sides; a flat light area and a zoom area. The flat zone is located at the center of the lens, where the flat zone has no diopter. The zoom area surrounds the flat light area, and the zoom area is positive diopter.

其中，變焦區具有單一屈光度。 Among them, the zoom zone has a single diopter.

其中，變焦區具有複數個屈光度。 Among them, the zoom zone has a plurality of diopters.

其中，變焦區的該些屈光度由內向外逐漸增加。 Among them, the diopters in the zoom area gradually increase from the inside to the outside.

其中，平光區的直徑與變焦區的寬度的比介於1：1至1：2。 The ratio of the diameter of the flat light zone to the width of the zoom zone is between 1:1 and 1:2.

其中，平光區的直徑與變焦區的寬度的比為1：1.5。 The ratio of the diameter of the flat light zone to the width of the zoom zone is 1:1.5.

其中，平光區的直徑為35mm。 Among them, the diameter of the flat zone is 35mm.

其中，鏡片具有一第一表面及一第二表面位於相對側。 The lens has a first surface and a second surface on opposite sides.

其中，平光區的該第一表面及該第二表面均無屈光度。 Wherein, the first surface and the second surface of the flat light zone have no diopter.

其中，變焦區的該第一表面無屈光度，該變焦區的該第二表面具有正屈光度。 Wherein, the first surface of the zoom zone has no diopter, and the second surface of the zoom zone has positive diopter.

其中，老花變焦鏡片包含兩個或兩個以上的鏡片有效區域。 Among them, the presbyopic zoom lens contains two or more effective areas of the lens.

綜上述，本創作的老花變焦鏡片符合人們配戴眼鏡和用眼習慣，看遠處時，平光區恰好處於人眼平視瞳孔中心，即可用以平視看遠處，而變焦區則可用來看近處。此外，本創作能有效且充分地利用鏡片的平光區作為台玉區，以及有效且充分地利用變焦區作為小玉區。 In summary, the presbyopic zoom lens of this creation is in line with people's habit of wearing glasses and using eyes. When looking at a distance, the flat light area is just right for the human eye to look at the center of the pupil, which can be used to look at the distance, and the zoom area is available. Look closer. In addition, this creation can effectively and fully use the flat light area of the lens as the jade area, and effectively and fully use the zoom area as the small jade area.

10:鏡片本體 10: Lens body

20:平光區 20: Flat area

30:變焦區 30: Zoom area

100:第一表面 100: first surface

200:第二表面 200: second surface

300:鏡片有效區域 300: Lens effective area

圖1繪示本創作的老花變焦鏡片的結構上視示意圖。 FIG. 1 is a schematic top view showing the structure of the presbyopic zoom lens of this creation.

圖2繪示本創作的老花變焦鏡片的結構側視示意圖。 FIG. 2 is a schematic side view showing the structure of the presbyopic zoom lens of the present invention.

為利瞭解本創作之技術特徵、內容與優點及其所能達成之功效，茲將本創作配合圖式，並以實施例之表達形式詳細說明如下，而其中所使用之圖式，其主旨僅為示意及輔助說明書之用，未必為本創作實施後之真實比例與精準配置，故不應就所附之圖式的比例與配置關係解讀、侷限本創作於實際實施上的權利範圍。此外，為使便於理解，下述實施例中的相同元件係以相同的符號標示來說明。而且圖式所示的組件的尺寸比例僅為便於解釋各元件及其結構，並非用以限定。 In order to better understand the technical characteristics, content and advantages of this creation and the achievable effects, the creation is combined with the drawings, and the expressions of the embodiments are described in detail below. The purpose of the drawings used is only For the purpose of illustration and supplementary instructions, it may not be the true proportion and precise configuration after the implementation of the creation, so it should not be interpreted and limited to the actual relationship between the proportion and configuration relationship of the attached drawings. The scope of rights imposed. In addition, for ease of understanding, the same elements in the following embodiments are described with the same symbols. Moreover, the size ratios of the components shown in the drawings are only for the convenience of explaining the elements and their structures, and are not intended to be limiting.

請參閱圖示，本創作是一種老花變焦鏡片，至少包含：一鏡片本體10、一平光區20及一變焦區30。鏡片本體10為透明材質，且具有第一表面100及第二表面200，第二表面200位於第一表面100的相對側。平光區20位於鏡片本體10的中心處，其中平光區無屈光度。變焦區30圍繞平光區20，其中變焦區30具有正屈光度。平光區20的正投影影像為圓形，變焦區30的正投影影像為環形，平光區20的幾何中心位置相同於變焦區30的幾何中心位置。平光區20的第一表面100及第二表面200均無屈光度。變焦區30的第一表面100無屈光度，變焦區30的第二表面200具有正屈光度。 Please refer to the illustration, this creation is a presbyopic zoom lens, at least including: a lens body 10, a flat light zone 20 and a zoom zone 30. The lens body 10 is made of transparent material, and has a first surface 100 and a second surface 200. The second surface 200 is located on the opposite side of the first surface 100. The flat zone 20 is located at the center of the lens body 10, where the flat zone has no diopter. The zoom area 30 surrounds the flat light area 20, wherein the zoom area 30 has a positive diopter. The orthographic image of the flat area 20 is circular, and the orthographic image of the zoom area 30 is circular. The geometric center of the flat area 20 is the same as the geometric center of the zoom area 30. Both the first surface 100 and the second surface 200 of the flat area 20 have no diopter. The first surface 100 of the zoom zone 30 has no diopter, and the second surface 200 of the zoom zone 30 has positive diopter.

變焦區30可由單一環形區組成(如圖1所示)，其中此環形區具有單一正屈光度，因此變焦區30可具有單一屈光度，藉以達到變焦效果。或者，變焦區30可例如由多個環形區組成，這些環形區具有複數個屈光度，其中屈光度由內向外逐漸增加，亦即由幾何中心向外逐漸增加。舉例來說，環形區的屈光度可呈階梯狀增加，藉以達到漸進變焦的效果。平光區20的直徑(正投影寬度)與變焦區30的寬度(正投影寬度)的比約介於1：1至1：2。其中，平光區20的直徑(正投影寬度)與變焦區30的寬度(正投影寬度)的比較佳約為1：1.5。舉例而言，平光區20的直徑為35mm，變焦區的寬度為48mm。本創作的老花變焦鏡片包含兩個或兩個以上的鏡片有效區域300。換言之，鏡片有效區域300中，平光區20約占二分之一至三分之二面積。因此，本創作能有效且充分地利用鏡片本體10的平光區20作為台玉區，以及有效且充分地利用變焦區30作為小玉區。本創作的特點在於符合人們配戴眼鏡和用眼習慣，看遠處時，平光區20恰好處於人眼平視瞳孔中心，即可用以平視看遠處，而變焦區30則可用來看近處。 The zoom area 30 may be composed of a single annular area (as shown in FIG. 1 ), where the annular area has a single positive diopter, so the zoom area 30 may have a single diopter to achieve the zoom effect. Alternatively, the zoom area 30 may be composed of, for example, a plurality of annular areas having a plurality of diopters, where the diopters gradually increase from the inside to the outside, that is, gradually increase from the geometric center to the outside. For example, the dioptric power of the ring-shaped area can be increased in a stepped manner to achieve the effect of progressive zoom. The ratio of the diameter of the flat light zone 20 (orthogonal projection width) to the width of the zoom zone 30 (orthogonal projection width) is approximately 1:1 to 1:2. Among them, the comparison between the diameter of the flat light zone 20 (orthogonal projection width) and the width of the zoom zone 30 (orthogonal projection width) is preferably about 1:1.5. For example, the diameter of the flat light zone 20 is 35 mm, and the width of the zoom zone is 48 mm. The presbyopic zoom lens of the present invention contains two or more lens effective areas 300. In other words, in the lens effective area 300, the flat light area 20 occupies approximately one-half to two-thirds of the area. Therefore, the present invention can effectively and fully utilize the flat light zone 20 of the lens body 10 as the jade zone, and effectively and fully utilize the zoom zone 30 as the small jade zone. This creation The characteristic is that it conforms to people's habit of wearing glasses and using eyes. When looking at a distance, the flat light zone 20 is just at the center of the human eye looking at the pupil, which can be used to look away at a distance, while the zoom zone 30 can be used to look at the near.

以上所述僅為舉例性，而非為限制性者。任何未脫離本創作之精神與範疇，而對其進行之等效修改或變更，均應包含於後附之申請專利範圍中。 The above is only exemplary, and not restrictive. Any equivalent modifications or changes made without departing from the spirit and scope of this creation shall be included in the scope of the attached patent application.

10:鏡片本體 10: Lens body

20:平光區 20: Flat area

30:變焦區 30: Zoom area

300:鏡片有效區域 300: Lens effective area

Claims

A presbyopic zoom lens includes at least: a lens body having a first surface and a second surface on opposite sides; a flat optical zone located at the center of the lens body, wherein the flat optical zone has no diopter; and a surrounding The zoom zone of the flat light zone, which is a positive diopter.

The presbyopic zoom lens as described in item 1 of the patent application range, wherein the zoom zone has a single diopter.

The presbyopic zoom lens as described in item 1 of the patent application range, wherein the zoom zone has a plurality of diopters.

The presbyopic zoom lens as described in item 3 of the patent application range, wherein the diopters of the zoom zone gradually increase from the inside to the outside.

The presbyopic zoom lens as described in item 1 of the patent application range, wherein the ratio of the diameter of the flat light zone to the width of the zoom zone is between 1:1 and 1:2.

The presbyopic zoom lens as described in item 1 of the patent application scope, wherein the ratio of the diameter of the flat light zone to the width of the zoom zone is 1:1.5.

The presbyopic zoom lens as described in item 1 of the patent application scope, wherein the diameter of the flat optical zone is 35 mm.

The presbyopic zoom lens as described in item 1 of the patent application scope, wherein the first surface and the second surface of the flat light zone have no diopter.

The presbyopic zoom lens as described in item 1 of the patent application range, wherein the first surface of the zoom zone has no diopter and the second surface of the zoom zone has positive diopter.

The presbyopic zoom lens as described in item 1 of the patent application scope contains two or more effective areas of the lens.