JP3223568U - Glasses magnifier - Google Patents

Abstract

[PROBLEMS] By using a lens that has been processed at three different magnifications and processed so that the boundary is not conspicuous, it is possible to handle all of the hand, the middle position, and far away, and the appearance is not impaired, An eyeglass-type magnifier that is easy to use is provided. A lens 3 is used in which different magnification factors are applied to an upper part 3a, an intermediate part 3b, and a lower part 3c. The magnification ratio of the upper part 3a of the lens 3 is 1.0 to 1.1 times, the magnification ratio of the intermediate part 3b is 1.1 to 1.2 times, and the magnification ratio of the lower part 3c is 1.2 to 2.times. 5 times. The magnification of the boundary portion 5 between the upper portion 3a and the intermediate portion 3b is set to an intermediate value between the upper portion and the intermediate portion, and the intermediate portion 3b and the lower portion 3c are set to an intermediate value between the intermediate portions 3b and the lower portion 3c. . [Selection] Figure 1

Description

  The present invention relates to a spectacle-type magnifier in which one lens is processed with different magnifications.

  Recently, various types of spectacle-type magnifiers in which a lens has a function of a magnifier are on the market. When looking at things, looking at a book at hand or passing through a needle, operating a computer slightly away, talking to a person, looking at a distance, etc. Although there are spectacle-type magnifying glasses with different magnifications because of the appropriate magnification, it is troublesome to change the glasses every time you look closer or far away. In view of this, there have been proposed glasses and spectacle-type magnifiers in which the lens is divided into upper and lower parts so that the upper power and magnification are different from the lower power and magnification (Patent Document 1: Utility Model Registration). No. 3065887, Patent Document 2: JP-A-6-18822).

Utility Model Registration No. 30658867 Japanese Patent Laid-Open No. 6-18822

  In the case of the spectacles or the magnifying glass according to the above proposal, since there are two types of magnifications and magnifications, it is not possible to deal with all of the hand, the intermediate position, and the distance. In addition, there is a problem that the upper and lower boundaries are conspicuous and affect the appearance.

  Therefore, the present invention can handle all of the hand, the middle position and the distant place by using a lens that has been processed in three ways of magnification and processed so that the boundary is not conspicuous, and the appearance is impaired. It is an object of the present invention to provide an eyeglass-type magnifier that is not easy to use.

  The invention described in claim 1 for solving the above-described problem is a spectacle-type magnifier characterized in that lenses having different magnification processing are used on the upper part, the middle part, and the lower part, respectively.

  In one embodiment, the magnification of the upper part of the lens is 1.0 to 1.2 times, the magnification of the middle part is 1.1 to 2.0 times, and the magnification of the lower part is 1.2. The size of the enlargement ratio is upper part <intermediate part <lower part. The magnification of the boundary between the upper part and the middle part is set to an intermediate value between the magnifications of the upper part and the intermediate part, and the magnification of the boundary part between the intermediate part and the lower part is set to an intermediate value between the magnifications of the intermediate part and the lower part. In that case, the width of the boundary portion in the vertical direction is 1 mm or less. The upper part, the middle part, and the lower part have the maximum width at the upper part.

  In one embodiment, the vine is made openable by incorporating a spring into the hinge stop for the vine frame.

  According to the present invention, there is provided a spectacle-type magnifying glass that can compensate for three types of magnification with one magnifying glass and that does not impair the appearance because the boundary is processed inconspicuously. be able to. Further, in the case of the device according to claim 6, since the vine opens to the outside, there is an effect that the hanging is easy.

It is a perspective view of the spectacles type magnifier concerning the present invention. It is a top view of the spectacles type magnifier concerning the present invention. It is a fragmentary sectional view of the principal part which shows the attachment method of the vine in the spectacles type magnifier concerning the present invention. It is a perspective view which shows the leaf | plate spring used for attachment of the vine in the spectacles type magnifier concerning this invention. It is a figure which shows the usage condition of the spectacles type magnifier which concerns on this invention.

  The spectacle-type magnifier according to the present invention will be described with reference to the attached drawings. FIG. 1 is a front perspective view of a spectacle-type magnifier according to the present invention. As shown in FIG. 1, a spectacle-type magnifier 1 according to the present invention has the same form as general spectacles. The lens 3 is fitted to the frame 2 that is hinged. The frame 2 may have a general frame shape, and the material is, for example, plastic or titanium.

  The lens 3 is divided into an upper part 3a for far vision, an intermediate part 3b for intermediate vision, and a lower part 3c for near vision, and each is subjected to different magnification processing. For example, the enlargement ratio of the upper part 3a is 1.0 to 1.2 times, the enlargement ratio of the intermediate part 3b is 1.1 to 2.0 times, and the enlargement ratio of the lower part 3c is 1.2 to 2.5. The magnification is doubled so that the size of the enlargement ratio is such that upper part 3a <intermediate part 3b <lower part 3c.

  The boundary part 5 between the upper part 3a and the intermediate part 3b and the boundary part 6 between the intermediate part 3b and the lower part 3c are processed so as not to be visible in normal times. That is, the boundary portion 5 is processed so as to have an intermediate value of the enlargement ratio between the upper portion 3a and the intermediate portion 3b, and the boundary portion 6 is processed so as to have an intermediate value between the intermediate portion 3b and the lower portion 3c. In this way, by setting the enlargement ratio of the boundary portions 5 and 6 to the intermediate value, the thickness of the boundary portion can be made closer to the thickness of the portions on both sides, and therefore, from the upper portion 3a to the intermediate portion 3b and from the intermediate portion 3b. It is possible to prevent a large step or a groove from being formed on the lower portion 3c, and the boundary portions 5 and 6 cannot be visually confirmed. In addition, it is preferable that the vertical width of the boundary parts 5 and 6 is 1 mm or less.

  As an embodiment, the vertical widths of the upper part 3a, the intermediate part 3b, and the lower part 3c are set to the highest width of the upper part 3a having the lowest enlargement ratio that is expected to be used most frequently, and the other intermediate parts 3b and lower parts 3c It is conceivable that the widths are substantially the same. As another embodiment, it is conceivable that the upper part: intermediate part: lower part is 1: 1: 1.

  The lens 3 may be colored like sunglasses. In this case, the coloring of the lens 3 and the coloring of the frame 2 may be the same.

  In a preferred embodiment, the spring 4 is assembled in the hinge stop portion of the frame 4 with respect to the frame 3 so that the temple 4 can be opened outward. As the spring, for example, a plate spring 10 such as a torsion coil spring as shown in FIG. 5 is used. The leaf spring 10 is formed by inserting two cuts 11 in the length direction at one end portion of a plate material to form a projecting piece 12 and rounding both sides of the projecting piece 12 to form a shaft support portion 13. This leaf spring 10 is embedded and fixed in the vine 4 leaving the projecting piece 12 and the shaft support portion 13, and by inserting the pivot shaft 14 protruding from the end of the frame 2 into the shaft support portion 13, It is fixed to the end of the frame 2. A rotation space 15 is secured at the end of the frame 2 for the protrusion 12 to rotate about the pivot shaft 14.

  In the case of this embodiment, when the temple 4 is folded, the projecting piece 12 rotates in the rotation space 15 in an unloaded state, so that the elastic force of the leaf spring 10 does not act in particular (FIG. 3A). ). When the vine 4 is expanded at the time of mounting, the tip of the projecting piece 12 hits the inner wall of the rotation space 15 (FIG. 3 (B)), but if a little force is applied, the hang 4 further resists the elastic force of the leaf spring 10. Can be expanded (FIG. 3 (C)), so it is easy to put on and take off.

  As described above, the lens 3 is divided into an upper part 3a for far vision, an intermediate part 3b for intermediate vision, and a lower part 3c for near vision, and each is subjected to different magnification processing. Since it is for far vision that faces the front, the intermediate part 3b is for intermediate vision that faces slightly downward, and the lower part 3c is for hand vision that faces downward, it is possible to achieve far vision with one spectacle-type magnifier according to the present invention. It can be applied to intermediate vision and hand vision (see FIG. 5).

  The spectacle-type magnifying glass according to the present invention can supplement three kinds of magnifications with one spectacle, is easy to use, and has great industrial applicability.

DESCRIPTION OF SYMBOLS 1 Glasses type magnifying glass 2 Frame 3 Lens 3a Upper part 3b Middle part 3c Lower part 4 Vine 5 Boundary part 6 Boundary part 10 Leaf spring 11 Notch 12 Projection piece 13 Shaft support part 14 Pivoting axis 15 Rotation space

Claims (6)

  An eyeglass-type magnifying glass characterized in that lenses having different magnification processing are used on the upper part, the middle part, and the lower part.   The magnification of the upper part of the lens is 1.0 to 1.2 times, the magnification of the middle part is 1.1 to 2.0 times, and the magnification of the lower part is 1.2 to 2.5 times 2. The spectacle-type magnifying glass according to claim 1, wherein the magnitude of the magnification ratio is upper part <intermediate part <lower part.   The magnification at the boundary between the upper part and the middle part is an intermediate value of the magnification between the upper part and the intermediate part, and the magnification at the boundary part between the intermediate part and the lower part is an intermediate value between the magnifications of the intermediate part and the lower part. The spectacles type magnifier according to claim 1 or 2.   The spectacles magnifier according to claim 3, wherein a width of the boundary portion in the vertical direction is 1 mm or less.   The spectacles type magnifying glass according to any one of claims 1 to 4, wherein the upper part, the middle part, and the lower part have a maximum width at the upper part.   The spectacles-type magnifying glass according to any one of claims 1 to 6, wherein the vine can be opened outward by incorporating a spring into a hinge stop portion of the vine lens frame.

Images