CN2257609Y

CN2257609Y - Non-spherical lens

Info

Publication number: CN2257609Y
Application number: CN 95206978
Authority: CN
Inventors: 吴祥照
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-03-31
Filing date: 1995-03-31
Publication date: 1997-07-09
Anticipated expiration: 2005-03-31

Abstract

The utility model provides a non-spherical lens. The utility model is characterized in that an outer side arc curved surface and an inner side arc curved surface are provided with arc bending on arc bending sample, and the arc bending is small arc bending. The lens has the advantages of comfortable wearing and material saving in making and processing.

Description

Aspherical lens

The utility model provides a kind of structure of aspherical lens, especially finger is a kind of is processing in a large number at aspherical lens, can make moderate progress because of the curved surface curved (curve) of tool that aspherical lens is, and this eyeglass can effectively be saved on manufactured materials, order uses this kind to be had more light and handy, comfortable on wearing with the reading glasses eyeglass of the number of degrees.

Press, just take a broad view of we the life around institute's widespread and various article (as the vision correction glasses, hope glasses, camera, facsimile recorder ... and so on eyeglass, it has adopted aspherical lens to change traditional spheric glass in present system, it is except improving the utilization spheric glass easily to looking and article generation torsional deformation phenomenon, and can to look and article have more clear, the effect of nature, modern creator is to make in a large number when being provided as reading glasses with aspherical lens at this, can more save the eyeglass rapidoprint, make the user on wearing, feel more light and handy, comfortable, and just present aspherical lens is being applied on the reading glasses eyeglass, the vision correction that is used as expecting, so this kind (seen also the 3rd with aspherical lens as the reading glasses eyeglass, when four figure) using, at this is that 400 degree are example with presbyopia's number of degrees just, it is nothing more than be tool following about 700 curved (curve) with outside arc surface (10), and inside arc curved surface (20) is 300 ° of tools curved (curve), just in this kind, it is suitable thick on the actual mirror face thickness that outside institute is the eyeglass with arc surface formation, must consume more material to the manufacturer is relative in the processing of making this kind aspherical lens, and when taking up as the reading glasses eyeglass with this kind aspherical lens, administration of human feels heavy slightly on the user is wearing to the dealer, uncomfortable.

The purpose of this utility model is to provide a kind of aspherical lens of novel structure, solving the waste of material problem that is caused in traditional eyeglass process, and gives light and handy, the comfort that the user wears this eyeglass.

The purpose of this utility model is achieved in that a kind of aspherical lens, its eyeglass (1) is to have the outer convex surface of indent, the inner sunken face that it is characterized in that described eyeglass (1) is the curved inside arc curved surface (11) of a little arc, and the outer convex surface of described eyeglass (1) is the curved lateral arcs curved surface (12) of a little arc. This scheme can make the curved improvement to some extent of the curved surface of tool that aspherical lens is.

Because above-mentioned scheme is to improve at the medial and lateral curved surface of eyeglass, thereby makes wearing of this eyeglass more comfortable, light and handy.

Below in conjunction with drawings and Examples the utility model is done further detailed description:

Fig. 1 is the sectional view of aspherical lens of the present utility model;

Fig. 2 is the enlarged diagram of aspherical lens of the present utility model;

Fig. 3 is the sectional view of traditional aspherical lens;

Fig. 4 is the enlarged diagram of traditional aspherical lens;

Among the figure: the aspherical lens lateral arcs curved surface that 10-is traditional;

The aspherical lens inside arc curved surface that 20-is traditional;

1-aspherical lens of the present utility model;

The lateral arcs curved surface of 11-aspherical lens of the present utility model;

The inside arc curved surface of 12-aspherical lens of the present utility model;

By Fig. 1,2 and comparison diagram 3,4, it is a kind of aspherical lens for the utility model, its eyeglass 1 is to have the outer convex surface of indent, and the inner sunken face that it is characterized in that described eyeglass 1 is the curved inside arc curved surface 11 of a little arc, and the outer convex surface of described eyeglass 1 is the curved lateral arcs curved surface 12 of a little arc.Medial and lateral arc surface 11,12 its camber lines of described eyeglass 1 are respectively 100 °, 500 and bend.100 ° of medial and lateral arc surface 11,12 its camber lines of described eyeglass 1,500 curved settings can be that the number of degrees at reading glasses are the limit values of 400 degree.Such scheme is in improving because of the shape of medial and lateral arc surface in processing aspherical lens (1), and effectively saved the rapidoprint of aspherical lens (1), and when assembling is all the presbyopic glass block of 400 degree mutually, on wearing, just can make the user feel more lighter and handier, comfortable utilization effect to the user.

Claims

1, a kind of aspherical lens, its eyeglass (1) has the outer convex surface of indent, it is characterized in that: the inner sunken face of described eyeglass (1) is the curved inside arc curved surface (11) of a little arc, and the outer convex surface of described eyeglass (1) is the curved lateral arcs curved surface (12) of a little arc.

2, a kind of aspherical lens according to claim 1 is characterized in that: the medial and lateral arc surface (11) of described eyeglass (1), (12) its camber line are respectively 100 °, 500 and bend.

3, want 1,2 described a kind of aspherical lens according to right, it is characterized in that: its camber line 100,500 curved settings of the medial and lateral arc surface (11) of described eyeglass (1), (12) can be that the number of degrees at reading glasses are the limit values of 400 degree.