CN101430429A

CN101430429A - Myoporthosis spectacles

Info

Publication number: CN101430429A
Application number: CNA2008100390562A
Authority: CN
Inventors: 沈嘉琦; 沈黎明
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-06-17
Filing date: 2008-06-17
Publication date: 2009-05-13

Abstract

The invention discloses a pair of glasses, in particular to a pair of glasses used for myoporthosis. The glass frame of the glasses can change the distance with the eyeballs according to the use occasions to form different far and near locating positions. In the near position, the visual feeling of the glasses is similar to that of the existing glasses and then the glasses are mainly used to be worn in daily life and operations; in the far position, the glasses are specially used to be worn for having classes and meeting recording. The glasses can prevent the deepening of the myopia degree caused by watching an object in a close distance by glasses to certain extent.

Description

A kind of glasses for myoporthosis

Affiliated technical field

The invention discloses a kind of glasses, a kind of glasses for myoporthosis.

Background technology

Current, have a considerable amount of students and good suffer from myopia to a certain degree, and myopic degree and near-sighted personnel amount increased along with school age with eye custom (promptly normal reading posture and loosen adjusting etc. timely) owing to not setting up.The student who suffers from myopia makes troubles often for normal study.In order to reduce the influence of myopia to study, people often select to wear spectacles.The eyeglass of spectacles can help to correct the comprehensive bent light rate of vision, make fuzzy originally distant objects can be on retina blur-free imaging.

But, existing glasses (especially contact lenses) when wearing eyeglass very near from eyeball, no matter observe distant objects, or near objects all must be passed through eyeglass.And the student goes up class hour, except observing distant objects such as blackboard, projection screen and teacher's demonstration, usually is accompanied by and watches in-plant written information and notes etc. attentively.After the student who suffers from myopia wore existing spectacles, distant objects such as literal had obtained visual pattern clearly because of the rectification of eyeglass on the blackboard; But when sight line turns near objects such as writing notes, because of the adding of eyeglass makes comprehensive diopter reduce, the result to the A nearsighted person originally clearly near objects thicken owing to putting on one's glasses, the human eye physiological function spontaneously improves the sharpness of closer object imaging on retina by the lenticular diopter of further increase at this moment.Along with the increase of this state duration, it is good in the eye custom to add that general A nearsighted person lacks relatively, progressively forms the new expendable additional dioptric optical value of crystalline lens, thereby causes the intensification of myopic degree.

Therefore existing spectacles ratio is easier to make wearer's (mainly for the student who learns on class) myopic degree to deepen gradually.

In addition, two eyeballs of human vision system automatically converge watching the object generation attentively, the eyeball primary optical axis angle of cut and differing greatly when watching near objects attentively about during the binocular fixation distant objects, and existing glasses are difficult to satisfy simultaneously at a distance and the requirements of near objects two primary optical axis angle of cut variations when focusing on, the variation of primary optical axis can add the distortion of visual pattern, therefore, tend to bring in various degree dizzy sensation for beginning to wear personnel that spectacles give a lesson.Though the stronger adaptive faculty of human body can adapt to the distortion of above-mentioned visual pattern at certain hour later on, but can bring to a certain degree negative effect to physiological vision.

Summary of the invention

The invention provides a kind of glasses for myoporthosis, eyeglass and eyeball distance can be switched and form amphi position when wearing, peri position two gears are put, (can be provided with from far near also that many gears are put or the position can change continuously, its middle distance part position far away is called amphi position, the nearer peri position that is called).The function that is in diverse location is as follows:

1, location of peri position

When eyeglass switches in the peri position gear and puts (as Fig. 2), observe any object (being remote object or closer object) and all must see through eyeglass, observation visual angle through correction of refractive errors is relatively large, generally be applicable to mobile big, to observe the generality work and the life of middle distance and remote object, the visual sense feeling when wearing is similar to existing glasses.

2, amphi position position

The field angle that eyeglass is in the amphi position gear when putting (as Fig. 1) observes by eyeglass is less, mainly covers dead ahead distant objects (see figure 3), reserves the certain angle of below (not passing through eyeglass) and writes and read (see figure 4).That is to say, when eyeglass is in the amphi position retaining, utilize people on class or the session with the eye custom, sight line is passed through eyeglass when realizing observing distant objects, and (sight line is without eyeglass) bore hole direct vision imaging during reading writing, thereby cause people (especially student) myopic degree to deepen the generation of incident easily when having avoided foregoing existing glasses to wear to a certain extent.

Specifically, myope is at school during (or meeting), eyeglass is transferred in amphi position shelves (as shown in Figure 1) position, when watching blackboard distant objects such as (fluorescent screen, speaker's demonstrations), head lifts naturally, eyeball upwards rotates, the projection of vision primary optical axis on the human body sagittal plane is near eye-ear plane projection line (or slightly going up partially), substantially overlap with the eyeglass primary optical axis, the observed object in distant place this moment is imaged on the retina by the correction of refractive errors of eyeglass, forms visual pattern (as Fig. 3) clearly; In the data of browsing with when carrying out near-distance reading such as written record, head and eyeball have a down dip synchronously naturally, vision primary optical axis and eyeglass primary optical axis form certain angle, owing to reserved certain distance between eyeglass and eyeball, by the closer object watched attentively without eyeglass, bore hole directly get a distinct image (as Fig. 4).

Do not have the adding of eyeglass when watching closer object attentively, the original dioptric imaging parameter of eyes does not change, and the vision physiological system can spontaneously not increase the diopter added value, thereby has avoided the intensification of the myopic degree that causes therefrom; In addition, because the primary optical axis angle of cut of eyes eyeglass only need satisfy the needs of observing distant objects, greatly reduce the vision negative effect that brings the visual pattern distortion to cause because of far and near object primary optical axis angle of cut deviation.

In sum, glasses for myoporthosis provided by the invention, not only have existing glasses for myoporthosis and satisfy the vision enhancement needs of A nearsighted person's general work and life, eliminate (or reduction) simultaneously to a certain extent existing glasses for myoporthosis wait the possibility that causes the myopic degree intensification because of (or meeting) on class.

Description of drawings

Fig. 1 is the glasses stereographic map of eyeglass when being in amphi position (lens hanger and pedestal distance draw back).

Fig. 2 is the glasses stereographic map of eyeglass when being in peri position (lens hanger and pedestal are drawn close mutually).

Fig. 3 is visual angle and the visual state synoptic diagram that eyeglass is observed distant objects when being in amphi position.

Fig. 4 is visual angle and the visual state synoptic diagram that eyeglass is read and write when being in amphi position.

Among the figure: 1. the correction of refractive errors eyeglass, 2. lens hanger, 3. the ear angle, 4. pedestal, 5. the nose angle, 6. move bindiny mechanism.

Embodiment

Glasses for myoporthosis provided by the invention mainly contains correction of refractive errors eyeglass (1), lens hanger (2), ear angle (3), pedestal (4), nose angle (5), mobile bindiny mechanism (6) etc. and forms (as shown in Figure 1).Wherein, two correction of refractive errors eyeglasses (1) are fixedlyed connected with lens hanger (2) and are integral, nose angle (5) is fixedlyed connected with pedestal (4) and is integral, pedestal (4) both sides are connected with a pair of ear angle (3) by hinge that (connected mode is similar to existing glasses, bipod opens to position shown in Figure 1 when wearing, bipod invagination when taking off, be convenient to deposit and carry), lens hanger (2) both sides are connected with pedestal (4) both sides by mobile bindiny mechanism (6), manually push-and-pull can make mobile bindiny mechanism (6) length variations, thereby realize the distance adjustment of pedestal (4) and lens hanger (2), form amphi position (drawing back) and peri position (closing up) state.Close up the time shift mechanism (6) that is dynamically connected and shrink and to enter the inner (see figure 2) of pedestal (4) and lens hanger (2) both sides, outward appearance is similar to existing glasses at this moment.Mobile bindiny mechanism (6) can adopt the parallelogram linkage to realize (see figure 1), also can adopt sectional track mechanism to realize, can also realize that above-mentioned each travel mechanism all is the common mechanism in the Machine Design by other mechanisms such as hinges.Easy to adjust when requiring manual switchover amphi position and peri position during structural design, accurate positioning is reliable, does not occur the motion of excuse portion when wearing and waits the shift in position that causes.

Claims

1, a kind of glasses for myoporthosis, comprising correction of refractive errors eyeglass, lens hanger, ear angle, nose angle, it is characterized in that: have a pedestal, the lens hanger of fixing len links to each other with pedestal, can do far and near moving relative to pedestal by mobile bindiny mechanism.

2, a kind of glasses for myoporthosis as claimed in claim 1 is characterized in that: the nose angle is not to be fixed on the lens hanger, but directly is fixed on the pedestal.

3, a kind of glasses for myoporthosis as claimed in claim 2 is characterized in that: the ear angle is not to be hinged on the lens hanger, but is connected with pedestal by hinge.

4, a kind of glasses for myoporthosis as claimed in claim 3 is characterized in that: pedestal is fixed with respect to head position based on nose angle, ear angle when wearing, and lens hanger can move forward and backward the position.