CN201035236Y

CN201035236Y - Ball lens substrate overlapped prism subpiece compound spectacles piece

Info

Publication number: CN201035236Y
Application number: CNU2007200374255U
Authority: CN
Inventors: 胡道淮; 邵金阳
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-04-29
Filing date: 2007-04-29
Publication date: 2008-03-12
Anticipated expiration: 2017-04-29

Abstract

The utility model relates to a compound type lens with spherical lens as substrates to stack the edge lens tablet. The utility model stacks the edge lens tablet on the selected spherical lens, the bottom surface of the edge lens is jointed with the spherical lens surface, and the depth of the wall surface gradually changes into zero from one side wall surface along the two side walls, and the vertical distance from the center of the gradually changed wall surface of the depth of the edge lens to optical spherical lens. The spherical base sheet of the lens is grinded according to the requirement of the myopia degree of the myopic, the edge lens tablet is grinded according to the requirement of +1.50DS-+2.50DS and 3 Delta -7 Delta of prism degree of the increasing light spherical degree. The utility model collects functional advantages of myopia prevention such as adopting the low degree convex lens, the double focus lens, and the progressive addition lens, and also focuses on the convenience and adaptability of the use of the myopic, which is good for the acceptance and use of the myopic. The utility model can help the myopic relatively lightly realize the adjustment of the focus and aggregation force of the observed object, not only distant object but also near object can be seen, which releases visual fatigue and can further prevent their vision decrease and the improvement of the myopic degree.

Description

The sub-sheet compound spectacles of concave-sphere substrate stack prism sheet

Technical field

The utility model relates to the technology of eyeglass, and particularly relating to a kind of is the combined type lens of the sub-sheet of substrate stack prism with the concave-sphere.

Background technology

In human society, " myopia " can be described as a kind of common disease, the frequently-occurring disease of eyes and is the intractable eye illness that is difficult to effect a radical cure." myopia " is because have some crowds to look nearly thing for a long time to cause ciliary spasm though heredity is arranged more, makes the lens regulate power, convergence power function reduction, progressively carries out the transition to the axial myopia that can't reverse from functional myopia.Student and intelligentsia be unable to do without to read all day and write, thus he (she) myope occupy very big ratio.In general, the effect of drug therapy is significantly little, has only wearing spectacles, is complementary with the eye lens regulatory function by the focal length size that eyeglass produced, and forms the new photosystem of looking, and just can reach the clear thing of looking.But As time goes on, eyes are frequently focused and are looked the thing convergence power, and the long-time contraction that eye muscle bore makes the myope of pendant mirror feel that still visual fatigue, eyesight slowly descend again, the near-sighted number of degrees increased in the rapid step.In order to address this problem, the researcher proposes in the industry: adopt lower degree convex lens to prevent and treat myopia; Make bifocal lenses to alleviate bathomorphic adjusting power, in addition, also release progressive mirror etc.Can wherein: lower degree convex lens be a kind of presbyopic glasses strictly speaking, is resultful to preventing and treating myopia, wears presbyopic glasses but most of people can not admit child, hold the suspicious attitude to preventing and treating myopia, and it is bigger to promote difficulty; Bifocal lenses can only alleviate the adjusting power that eyes are looked nearly thing, and can not solve the convergence power of looking nearly thing; Progressive mirror is a kind of near-sighted glasses of rapid step zoom, and the sheet type is too complicated, and there have slightly during making to be improper, then can produce image deformation, after most myopes are worn inadaptation arranged all.Thereby, so far do not have good plan can improve the visual fatigue of myope, prevent increasing once again of its visual deterioration and the near-sighted number of degrees.

Summary of the invention

The utility model is according to optics expert's research theory, the compound spectacles sheet of the sub-sheet of a kind of spherical lens stack prism has been proposed, purpose is to help myope to alleviate looks the adjusting power of thing focal length and convergence power, alleviation visual fatigue, and prevents that eyesight from further descending and the raising of the near-sighted number of degrees.

Technical solution of the present utility model

The utility model comprises blank eyeglass and the one-tenth eyeglass that is formed by blank eyeglass correct grinding.The blank eyeglass be on the substrate of the concave-sphere of selecting for use, stack prism sheet.The sub-sheet of this prism is made up of last end face and bottom surface and side wall surface, and wherein: bottom surface and concave-sphere substrate face fit, go up end face and also be arc surface, and wall thickness by a side wall surface along the gradual change of adjacent two side to zero; The center of the sub-sheet gradient thickness of prism upper wall surface to the vertical range of concave-sphere photocentre is no more than 5mm.

Blank eyeglass of the present utility model is made into eyeglass through correct grinding, and its concave-sphere substrate grinds by requirements of myope myopia number of degrees coupling, and the sub-sheet of prism presses the diopter of correction that adds light and is+and 1.50DS-+2.50DS, prism degree are that 3 Δs-7 Δ requires to grind.The sub-sheet of prism is positioned at into the following position of eyeglass, the nasal side that its sidewall (also claim prism at the bottom of to) with thickness is positioned at eyeglass to.

The beneficial effects of the utility model:

(1) the utility model has been concentrated the technological thought of the control myopia that personnel proposed in the industry at present, both considered the bathomorphic functional advantage of control such as adopting lower degree convex lens, bifocal lens, progressive mirror, be conceived to convenience and indication thereof that myope uses again, accept use more to help the A nearsighted person.

(2) the utility model can help myope to realize looking the adjusting of the focal length and the convergence power of thing comparatively like a cork, wear with it that to look thing not only far visual but also can see near, alleviate visual fatigue, goodness of fit eye care again, can effectively prevent the raising of the visual deterioration and the near-sighted number of degrees.

Description of drawings

Accompanying drawing 1 is the structural representation of the utility model blank left side eyeglass;

Accompanying drawing 2 is into the structural representation that eyeglass is formed glasses for the utility model.

Embodiment

As shown in Figure 1, the utility model is made the blank mirror earlier: getting basic the bending in surface is the concave-sphere substrate 1 of 2-5 degree; Get long 20-30mm, wide 15-25mm, the wall thickness drop is the sub-sheet 2 of prism of 1-5mm.The wall thickness of the sub-sheet 2 of prism by a side wall surface 21 along 22,23 gradual changes of adjacent two side to 1.5mm.Its bottom surface is identical with concave-sphere substrate face curvature, and be fitted on the concave-sphere face, the below of concave-sphere face photocentre position, position, the photocentre point 11 of concave-sphere substrate 1 to the vertical range at 1/2 place of the sidewall 22 of the wall thickness gradual change of the sub-sheet 2 of prism is 1-4mm.

As shown in Figure 2, the blank mirror is finish-ground to meets myope and look the one-tenth eyeglass 3 of light requirement and pack into and get final product in the picture frame 4.

Down with example summary the utility model to the influence of near-sighted user on visual accommodation:

Certain student's eyes myopia, look thing and need produce the convergence power that 2.00DS regulates power, 9 Δs, when wearing common near-sighted glasses and read, then eyes also need produce the convergence power that 3.0DS regulates power and 9 Δs, wear the utility model then eyes only need produce the adjusting power that is comparable to 1.00DS and the convergence power of 3 Δs.Thereby, make this student see far, look closely and all can reach same comfort level, alleviated visual fatigue greatly, also prevented the rising again of the near-sighted number of degrees.Certainly for the near-sighted degree of difference, the myope that eye distance does not wait can obtain " sitting in the right seat " in series specification product of the present utility model, makes it to reach the best visual effect and can also " make to measure " for special person.

Claims

1. the sub-sheet compound spectacles of concave-sphere substrate stack prism sheet, comprise blank eyeglass and the one-tenth eyeglass that forms by blank eyeglass correct grinding, it is characterized in that: described blank eyeglass is to go up the stack sub-sheet of prism (2) at concave-sphere substrate (1), this prismatic lens is made up of last end face and bottom surface and side wall surface, wherein: bottom surface and concave-sphere substrate face fit, last end face also is arc surface, and wall thickness by a side wall surface (21) along adjacent two side (22,23) gradual change is to 1.5mm, and the center of the sub-sheet gradient thickness of prism wall (22) to the vertical range of concave-sphere photocentre (11) is no more than 5mm.

2. the sub-sheet compound spectacles of concave-sphere substrate according to claim 1 stack prism sheet, it is characterized in that: the described sub-sheet of one-tenth eyeglass prism (2) is positioned at into the following position of eyeglass (3), the nasal side that its sidewall (21) with thickness is positioned at eyeglass to.

3. the sub-sheet compound spectacles of concave-sphere substrate stack prism according to claim 1 sheet, it is characterized in that: the center of the sub-sheet gradient thickness of described prism wall (22) to the vertical range of concave-sphere photocentre (11) is 1-4mm.

4. the sub-sheet compound spectacles of concave-sphere substrate stack prism according to claim 1 sheet, it is characterized in that: the surface base of described concave-sphere substrate (1) is curved to be the 2-5 degree, and the sub-sheet of prism (2) is got long 20-30mm, wide 15-25mm, the wall thickness drop is 1-5mm.