CN102116921A - Short-distance eyeglasses - Google Patents
Short-distance eyeglasses Download PDFInfo
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- CN102116921A CN102116921A CN2011100509376A CN201110050937A CN102116921A CN 102116921 A CN102116921 A CN 102116921A CN 2011100509376 A CN2011100509376 A CN 2011100509376A CN 201110050937 A CN201110050937 A CN 201110050937A CN 102116921 A CN102116921 A CN 102116921A
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- mirror
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Abstract
The invention relates to an optical device, in particular to short-distance eyeglasses. In order to solve the problem that the conventional myopia eyeglasses and the short-distance eyeglasses are not suitable for shortsighted persons to wear within a short distance, the invention proposes short-distance eyeglasses. The short-distance eyeglasses are characterized in that an optical center of a sub lens is about 2 mm away from the lower part of an optical center of a main lens; a short-distance area covered by the sub lens occupies about 2/3 of empty height of an eyeglass frame; the diopter absolute value of the sub lens is less than or equal to that of the main lens; and the total diopter of a lens joint area formed by the sub lens and the main lens is 0.00D-4.00D. The short-distance eyeglasses have the benefits that the short-distance eyeglasses solve the problem that the conventional myopia eyeglasses and the short-distance eyeglasses are not suitable for the eye shortsighted persons to wear within the short distance, have a complex structure and are easy to manufacture.
Description
Technical field
The present invention relates to a kind of optical device, especially a kind of glasses of closely using.
Background technology
" myopia " eyeglass that myopia is worn usually is a concace mirror lens, and the object reflection ray is crossed and will be dispersed behind the mirror and the visual angle is increased, and the visual angle of this increase is at eye myope distant vision.When being used for myopia exercise, because object is from the eyeglass close together, to have largely behind the object reflection ray transmitted through glasses and disperse, the degree of divergence of object behind its reflection ray transmitted through glasses of glasses will be big more, this subtended angle to the human eye node is bigger than normal, sometimes or even unacceptable, so can see a myope once in a while and need take off one's glasses and just can see the phenomenon of nearly thing clearly.Therefore, this " myopia " glasses are actually and are used for a myope and look far away, and the discomfort myope myopia exercise of sleeping is used.
Though the glasses that have some to design at nearly usefulness, as " near-sighted Dual-purpose glasses falls in the teenager " (200620087001.5) closely with have in the glasses diopter be+0.75D～+ convex lens of 3.50D, but to fail to reach optimum value in use uncomfortable because of nearly diopter design with part.
Therefore, existing spectacles and existing closely the sleep problem of the nearly usefulness of myope of discomfort is arranged with glasses.
Summary of the invention
In order to solve existing spectacles and existingly closely to the invention provides a kind of nearly glasses of use with the sleep problem of the nearly usefulness of myope of the discomfort of glasses, with this near with glasses can solve have now spectacles with have now near with the sleep problem of the nearly usefulness of myope of the discomfort of glasses.
The present invention solves the technical scheme that its problem takes:
A kind of nearly glasses of using, by mirror holder, eyeglass constitutes, the eyeglass front is provided with the protruding sub-mirror of flat-top, primary mirror is a concace mirror lens, it is characterized in that sub-mirror optical centre is below the primary mirror optical centre about 2mm, what sub-mirror covered is near with regional about 2/3 of the interior outage degree of picture frame that accounts for, sub-mirror diopter absolute value≤primary mirror diopter absolute value, total diopter in the eyeglass associating zone that sub-mirror and primary mirror form be 0.00D～-4.00D, primary mirror diopter 0.00D～-during 3.00D, sub-mirror diopter be 0.00D～+ 3.00D, the primary mirror diopter is-3.00D～-during 6.00D, sub-mirror diopter is+3.00D～+ 4.00D, the primary mirror diopter is-6.00D～-during 9.00D, sub-mirror diopter is+4.00D～+ 5.00D, with the diopter of two sub-mirrors in a pair of glasses differ+0.50D about.
Principle of the present invention is:
Concavees lens before to mirror parallel beam and to a certain degree gather light beam disperse function all arranged.The eye myope mainly is to look after distant vision far to join mirror for 5 meters when getting the right lensses for one's eyeglasses, if object distance is less than 5 meters, the degree of divergence that light is crossed behind the mirror just increases, eyes just need to increase to be regulated and can see clearly, the degree of divergence that the more little light of object distance is crossed behind the mirror is just big more with regard to the regulating degrees of big more and then eyes, and this is harmful to eyes.There are some researches show when concace mirror lens uses on closely, really exist diopter and increase effect, only be only when the long sight distance-eyeglass of 3.00D as-3.00D eyeglass, its diopter is equivalent to-the 5.00D eyeglass during to middle sighting distance, to near-sighted apart from the time its diopter more be equivalent to-the 7.00D eyeglass.Come the same visual angle level of light if the visual angle of the reflection ray that can make nearly thing when arriving the eyes of eye myope after the effect of eyeglass also remains on about 5 meters distant places, then be difficult for most making eyes to produce visual fatigue, also help most sight protectio.The front of present common spectacles eyeglass is provided with a protruding sub-mirror that diopter is suitable, the visual angle of the reflection ray that then can make near objects when arriving the eyes of eye myope after the effect of eyeglass remains on about 5 meters distant places comes the same visual angle level of light, the extent control that just can make divergence of beam is at a needed subtended angle, eyes are in to regulate or state that regulating degree is little, be fit to the eye long-time myopia exercise of myope and don't can cause visual fatigue, can not continue to deepen the myopic degree of eyes.
In order to adapt to the nearly situation that changes within the specific limits with distance, now make diopter with the sub-mirror before two primary mirrors in a pair of glasses differ+0.50D about.
The present invention closely with the beneficial effect of glasses is, solved existing spectacles and closely with the sleep problem of the nearly usefulness of myope of the discomfort of glasses, structure is uncomplicated, makes not difficult.
Description of drawings
Accompanying drawing 1 is closely used the Glasses structure synoptic diagram for the present invention.
Accompanying drawing 2 is closely used the eyeglass structural representation for the present invention.
Among the figure: 1. recessed primary mirror; 2. protruding sub-mirror; 3. mirror holder.
Embodiment
Describe the CONSTRUCTED SPECIFICATION that the present invention closely uses glasses in detail below in conjunction with drawings and Examples.
As shown in Figures 1 and 2, formation the present invention closely uses glasses to recessed primary mirror (1) in the mirror holder (3) for one-piece construction is contained in protruding sub-mirror (2).Protruding sub-mirror (2) is a flat-top, protruding sub-mirror (2) optical centre is about the 2mm of recessed primary mirror (1) front optical centre below, the part that is capped in protruding sub-mirror (2) and the recessed primary mirror (1) is formed the present invention and is closely used the near with the zone of glasses, in protruding sub-mirror (2) covers the nearly picture frame that accounts for mirror holder (3) with the zone about 2/3 of the outage degree, protruding sub-mirror (2) diopter absolute value≤recessed primary mirror (1) diopter absolute value, total diopter in the eyeglass associating zone that protruding sub-mirror (2) and recessed primary mirror (1) form be 0.00D～-4.00D.
When recessed primary mirror (1) diopter 0.00D～-during 3.00D, protruding sub-mirror (2) diopter be 0.00D～+ 3.00D, total diopter in eyeglass associating zone is about 0.00D.
When recessed primary mirror (1) diopter be-3.00D～-during 6.00D, protruding sub-mirror (2) diopter is+3.00D～+ 4.00D, total diopter in eyeglass associating zone be 0.00D～-2.00D about.
When recessed primary mirror (1) diopter be-6.00D～-during 9.00D, protruding sub-mirror (2) diopter is+4.00D～+ 5.00D, total diopter in eyeglass associating zone is-2.00D～-4.00D about.
Same pair closely use the diopter of the protruding sub-mirrors of two in the glasses (2) differ+0.50D about.
Claims (3)
1. closely use glasses for one kind, constitute by mirror holder, eyeglass, the eyeglass front is provided with the protruding sub-mirror of flat-top, primary mirror is a concace mirror lens, it is characterized in that sub-mirror optical centre is below the optical centre of primary mirror front about 2mm, sub-mirror covers closely accounts for about 2/3 of outage degree in the picture frame with the zone, the eyeglass that sub-mirror diopter absolute value≤primary mirror diopter absolute value, sub-mirror and primary mirror form unite regional total diopter be 0.00D～-4.00D.
2. according to the described nearly glasses of using of claim 1, it is characterized in that primary mirror diopter 0.00D～-during 3.00D, sub-mirror diopter be 0.00D～+ 3.00D, the primary mirror diopter is-3.00D～-during 6.00D, sub-mirror diopter is+3.00D～+ 4.00D, the primary mirror diopter is-6.00D～-during 9.00D, sub-mirror diopter is+4.00D～+ 5.00D.
3. according to the described nearly glasses of using of claim 1, it is characterized in that the diopter with two sub-mirrors in a pair of glasses differs+0.50D about.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100509376A CN102116921A (en) | 2011-03-03 | 2011-03-03 | Short-distance eyeglasses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100509376A CN102116921A (en) | 2011-03-03 | 2011-03-03 | Short-distance eyeglasses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102116921A true CN102116921A (en) | 2011-07-06 |
Family
ID=44215768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100509376A Pending CN102116921A (en) | 2011-03-03 | 2011-03-03 | Short-distance eyeglasses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102116921A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105388628A (en) * | 2014-08-20 | 2016-03-09 | 庄臣及庄臣视力保护公司 | pupil size-independent lens design and method for preventing and/or slowing myopia progression |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10186290A (en) * | 1996-12-20 | 1998-07-14 | Nikon Corp | Double focus lens |
| CN2325792Y (en) * | 1997-12-31 | 1999-06-23 | 郑叶生 | Multi-function glasses |
| CN1952733A (en) * | 2006-11-13 | 2007-04-25 | 刘华友 | Spectacles for myopia |
| CN200972549Y (en) * | 2006-11-27 | 2007-11-07 | 张顺 | Eye protection lens |
-
2011
- 2011-03-03 CN CN2011100509376A patent/CN102116921A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10186290A (en) * | 1996-12-20 | 1998-07-14 | Nikon Corp | Double focus lens |
| CN2325792Y (en) * | 1997-12-31 | 1999-06-23 | 郑叶生 | Multi-function glasses |
| CN1952733A (en) * | 2006-11-13 | 2007-04-25 | 刘华友 | Spectacles for myopia |
| CN200972549Y (en) * | 2006-11-27 | 2007-11-07 | 张顺 | Eye protection lens |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105388628A (en) * | 2014-08-20 | 2016-03-09 | 庄臣及庄臣视力保护公司 | pupil size-independent lens design and method for preventing and/or slowing myopia progression |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110706 |