CN203299473U

CN203299473U - Glasses capable of eliminating light reflection on blackboard and clamping pieces of glasses

Info

Publication number: CN203299473U
Application number: CN2013202829053U
Authority: CN
Inventors: 陈利
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-10-21
Filing date: 2013-05-08
Publication date: 2013-11-20
Anticipated expiration: 2023-05-08

Abstract

The utility model discloses a pair of glasses capable of eliminating light reflection on a blackboard and clamping pieces of the pair of glasses. Polarized lenses 2 are assembled onto a glasses frame 1 to form the pair of glasses, or polarized lenses are assembled onto a clamping piece frame to form the clamping pieces of the pair of glasses; and the deviation angle of the polarized lenses is 0 degree or approaches to 0 degree. When the pair of glasses is used or the clamping pieces of the pair of glasses are assembled onto a pair of rectification glasses for use, a user sitting in any position in a classroom can see writing on the blackboard clearly without influence of light reflection, and all kinds of people with shortsightedness, farsightedness, astigmatism and the like can use the pair of glasses conveniently. The pair of glasses and the clamping pieces can eliminate light reflection on the blackboard, and can eliminate light reflection on any object which cannot be seen clearly due to lateral incident light radiation.

Description

Eliminate glasses and the glasses clamping piece of blackboard reflective light

Technical field

The utility model relates to a kind of polaroid glasses and glasses clamping piece of eliminating blackboard reflective light.

Background technology

Various polaroid glasses and the glasses clamping piece of design are that polarized lenses is assembled on spectacle frame or intermediate plate frame and forms at present, its function be eliminate dead ahead or directly over the incident light irradiation and the horizontal polarization string light that produces [string light is specular light, be commonly called as: reflective, " string light " alleged in this article is identical with " reflective " meaning], be usually used in the aspects such as fishing, driving.Present existing various polaroid glasses and glasses clamping piece, shown in Figure 1 in its principle such as accompanying drawing, the polarization axle of polarized lenses 2 (being the printing opacity direction of polarized lenses) is vertical with the horizontal axis 3 of glasses, just also with from dead ahead or directly over the dazzling horizontal polarization string light 4 that produces after reflecting surface 5 reflections of the natural light 6 of incident vertical, string light 4 can not become by polarization axle the polarized lenses 2 of vertical direction, thereby string light 4 is filtered out.This polaroid glasses or glasses clamping piece, the vertical polarization string light (as blackboard reflective light) of the side direction incident illumination being penetrated generation has no filtration.

In recent years, the multimedias such as various projector, interactive electric whiteboard and TV blank are used for education activities to some extent, although these multimedia blanks (or cloth), can avoid the reflective of traditional blackboard, but the multimedia consumptive material is all very expensive, popularity rate is not high, and increasing school finds in top class in a kindergarten's teaching practice of China: these multimedias can only, as a kind of aided education instrument in teaching, all can't replace traditional black board teaching fully.Therefore, no matter be university or middle and primary schools, the utilization rate of blackboard is still very high.But various blackboards or the green plate sold in the market, will make the student not see writing on the blackboard because of reflective after a period of time uses, this problem is perplexing student and teacher for many years always, affects student's study.at present, polarization knowledge is very few for the research on the problem that solves side direction incident light irradiation generation string light, designed although there was a side in middle school, Yangzhou, Jiangsu Province to study teacher before two more than ten years " polarized light glasses for blackboard reflect light " that a kind of number of patent application is CN89201097.5, but be not difficult to find out from his design proposal: he did not just understand fully that the polarisation of light direction of blackboard " reflective " was the vertical direction of fixing at that time, cause him to design needs " rotate the polarized lenses of circle adjustment " in picture frame glasses, to producing and using all inconvenient, to such an extent as to the student is effectively solved because of the problem that blackboard reflective light does not see writing on the blackboard.

The utility model content

In order to help the student to solve the problem that does not see writing on the blackboard because of blackboard reflective light, fill up this blank of spectacles industry, the utility model is to provide a kind of glasses and glasses clamping piece of eliminating blackboard reflective light.

The technical scheme that its technical matters that solves the utility model adopts is: polarized lenses 2 is assembled on spectacle frame 1 or intermediate plate frame 0, make the folded acute angle of horizontal axis 3 of the polarization axle of polarized lenses 2 and glasses be not more than 30 °, form glasses or the glasses clamping piece of eliminating blackboard reflective light.The horizontal axis 3 of glasses, refer to the line of the geometric center of glasses or glasses clamping piece left and right eyeglass, and while because of glasses, normally wearing, this line is the level of state and is named, and this is one and weighs the glasses of eliminating blackboard reflective light and the reference line of glasses clamping piece feature.The folded acute angle of the horizontal axis 3 of the polarization axle of polarized lenses 2 (being polarization direction or the direction of thoroughly shaking) and glasses is angle of deviation, the possible position of the polarization axle of dotted line 7 expression eyeglasses 2, and θ is angle of deviation.Below from the optical angle analysis, eliminate the glasses of blackboard reflective light and the optical principle of glasses clamping piece, referring to Fig. 2 in accompanying drawing, the student sees that the side direction natural light 6 that only by the door and window incident from blackboard (classroom in other words) both sides, is come that the blackboard reflection comes reflects and the specular light 4 that comes and the result that diffuses stack through the surface 5 of blackboard.Diffuse is that the student sees the required regular reflection light of writing on the blackboard clearly; Specular light 4 is to make the student not see the string light of writing on the blackboard, and this string is the fixing polarized light in polarization direction only, and its polarization direction is vertical, and while being mapped to a certain position in classroom, the student who is sitting in this position does not just see this regional writing on the blackboard on blackboard.But when the student who is sitting in this position puts on the utility model, due to the polarization direction of thoroughly shake direction and the reflected light 4 of polarized lenses 2 near vertical, therefore oriented polarization light 4 will be prevented from by, diffuse almost without any impact, it is soft, dense that thereby the color that makes writing on the blackboard seems, by the student, seen clearly and know Chu.Angle of deviation θ of the present utility model is not more than 30 °, and angle of deviation θ is less, eliminates reflective effect more obvious, and angle of deviation θ is 0 °, when namely polarization axle is parallel with the horizontal axis of glasses, is optimum position.Angle of deviation θ is larger, and effect is poorer, when angle of deviation θ reaches more than 30 °, and reflective without the elimination effect to blackboard.

The glasses clamping piece that glasses that use to eliminate blackboard reflective light maybe will be eliminated blackboard reflective light is clipped on correcting spectacle lens (as spectacles), and any position that the is sitting in classroom writing on the blackboard that looks at the blackboard, be not subjected to reflective impact, can clearly see writing on the blackboard clearly, easy to use, applicable crowd is wide, and consumptive material is cheap.And use can also directly be joined this type of glasses for all kinds of crowds such as myopia, long sight, amblyopia, astigmatism test with the polarized lenses of certain dioptric concave-sphere and/or post mirror.Eliminate glasses and the glasses clamping piece of blackboard reflective light, not only can be used for eliminating blackboard reflective light, reflective on any object that does not see things that causes because of the side direction incident light all had the elimination effect.

Description of drawings

Fig. 1 is the design concept figure of at present existing polariscope.Vertical line on polarized lenses 2 is to describe axially drawing of polarized lenses for image, does not have on actual polarized lenses.

Fig. 2 is the design concept figure of " glasses and the glasses clamping piece of eliminating blackboard reflective light ".Horizontal line on polarized lenses 2 is also to describe axially drawing of polarized lenses for image, does not have on actual polarized lenses, and this state representation angle of deviation is 0 °.

Fig. 3 is the pictorial diagram of " glasses of eliminating blackboard reflective light ".The outward appearance of mirror holder 1 can freely be selected, and is not limited in Fig. 31 style, as long as possess its function.

Fig. 4 is the pictorial diagram of the glasses clamping piece of blackboard reflective light " eliminate ", and the surface structure of intermediate plate frame 0 etc. can freely be selected, and is not limited in Fig. 40 style, as long as possess its function.

In figure: 0. intermediate plate frame, 1. spectacle frame, 2. polarized lenses, the 3. horizontal axis of glasses, the polarized light that 4. reflects to form, 5. reflecting surface, the 6. natural light of incident, the 7. position of the polarization axle of the polarized lenses after the assembling, θ. angle of deviation.

Embodiment

Embodiment one: the compound method of eliminating the glasses (as Fig. 3) of blackboard reflective light:

The number of degrees of the glasses that 1) clearly will process (comprising zero diopter), choose the polarized lenses of the corresponding number of degrees, as with certain dioptric concave-sphere and/or post mirror polarized lenses, if without any dioptric zero diopter polarized lenses that also can directly with polaroid, process from strand;

2) choose suitable mirror holder 1, make the template of eyeglass according to mirror holder;

3) polarization direction of location polarized lenses, while requiring polarized lenses 2 after moulding to be assembled on mirror holder 1, its angle of deviation is 0 ° or trends towards 0 °;

4) eyeglass that will have good positioning, through wafer lapping machine (or slicing machine) machine-shaping, is assembled in type polarized lenses 2 on mirror holder 1 after bevelling, chamfering, polishing, is up to the standards, and can use.

Embodiment two: the compound method of eliminating the glasses clamping piece (as Fig. 4) of blackboard reflective light:

1) choose qualified polaroid, cut-parts, the baking curved, make the curved polarized lenses of certain base;

2) choose suitable intermediate plate frame 0, make the eyeglass template of intermediate plate;

3) polarization direction of location polarized lenses, while requiring polarized lenses 2 after moulding to be assembled on intermediate plate frame 0, its angle of deviation is 0 ° or trends towards 0 °;

4) with slicing machine with polarized lenses machine-shaping and be assembled on intermediate plate frame 0, can use after the assay was approved.

Embodiment three: the method for adhering film of the polarizing coating of the pad pasting glasses of elimination blackboard reflective light is as follows:

1) choose polarization pad pasting with adhesive sticker;

2) take off the eyeglass of the common spectacles that has ground;

3) determine the polarization direction of polarizing coating, and polarizing coating is attached on lens, when the eyeglass after requiring to paste was assembled on mirror holder, its angle of deviation was 0 ° or trends towards 0 °;

4), with pad pasting excision unnecessary on eyeglass, then, the eyeglass fit on mirror holder that posts film, can use after the assay was approved.

Claims

1. glasses and glasses clamping piece of eliminating blackboard reflective light, it is that polarized lenses is assemblied on spectacle frame and forms glasses or polarized lenses is assemblied on the intermediate plate frame and forms glasses clamping piece, and it is characterized in that: the folded acute angle of the polarization axle of polarized lenses and the horizontal axis of glasses is not more than 30 °.

2. the glasses of elimination blackboard reflective light according to claim 1 and glasses clamping piece, it is characterized in that: the horizontal axis of glasses (3), refer to the line of the geometric center of glasses or glasses clamping piece left and right eyeglass, the folded acute angle of the polarization axle of polarized lenses and the horizontal axis of glasses is angle of deviation (θ), when the glasses of preparation elimination blackboard reflective light or glasses clamping piece, angle of deviation is not more than 30 °, trend towards 0 °, when angle of deviation is 0 °, be polarization axle when parallel with the horizontal axis of glasses, be optimum position.

3. the glasses of elimination blackboard reflective light according to claim 1 and glasses clamping piece, it is characterized in that: glasses and the glasses clamping piece polarized lenses used of blackboard reflective light eliminated in preparation, it can be both the zero diopter polarized lenses that is processed into polaroid, can be also with certain dioptric concave-sphere and/or post mirror polarized lenses, can also be to be attached to polarizing coating the polarized lenses that is made on the eyeglass of common spectacles.