CN2305684Y - Dioptric lens - Google Patents

Abstract

The utility model discloses a refractive lens's cross sectional shape is the zigzag, has a distance d between each tooth root, and d is greater than or equal to 0, and the prong all is located tooth root perpendicular bisector homonymy, and this refractive lens cost of manufacture is very cheap, and the light absorption is few, and the refraction is effectual, can supply to make other complicated approximate refraction devices to use as a basic refractive lens simultaneously.

Description

A kind of dioptric lens

The utility model relates to a kind of lens.

Utilize the refraction principle of light transmissive material, people have made convex lens, concavees lens, prism etc., reduce manufacturing cost in order to reduce material consumption, do not need the technical field of strict imaging at those, convergence as sunshine, people have adopted Fresnel Lenses, the approximate light-focusing function of having realized convex lens.But, Fresnel Lenses is that directional light is converged to focus or focal line, and realize that the optically focused purpose needs higher making precision, cost of manufacture is increased, raw-material consumption also increases simultaneously, and can not be as a kind of basic optical lens, in order to make the approximate refractive power device of various functions.

The purpose of this utility model has just provided a kind of dioptric lens, and this dioptric lens cost is very cheap, and refractive power is effective, can be used as a kind of basic optical lens for other various refractive power device effect of making.

The purpose of this utility model is achieved in that it is rectangle that the vertical sectional shape of mirror is awarded in this refractive power, and shape of cross section is a serrate, and crown all is positioned at the homonymy of sharp root perpendicular bisector, has one apart from d between each tooth, d 〉=0; In the triangle that xsect upside crown and its tooth root form a minor face adjacent with crown right angle 0 degree≤α≤20 spend, long limit right angle 20 degree≤β≤90 spend, in the triangle that xsect downside crown and its tooth root form the minor face adjacent with crown right angle 0 degree≤α '≤20 degree, the long limit diagonal angle 20 degree≤β ' of institute≤90 are spent.

The dioptric lens that the utility model provides can be made thin film lens, is easy to produce in batches, and cost is very cheap, and light absorption is few, and refractive power is effective, can be used as a kind of basic dioptric lens simultaneously, uses for making other complicated approximate refractive power device.

Fig. 1 is the utility model stereographic map;

Fig. 2 is the B-B cut-open view of Fig. 1;

Fig. 3 is the A-A cut-open view of Fig. 1;

Fig. 4 is tooth enlarged diagram on Fig. 3;

Fig. 5 is another enlarged diagram of tooth on Fig. 3;

Fig. 6 is the dioptric lens fundamental diagram.

Below in conjunction with drawings and Examples the utility model principle of work is further described.

This dioptric lens ultrathin type, thickness are less than 3mm, and 1 is crown among Fig. 4, and 2 is the tooth root perpendicular bisector, the 3 long limits by the adjacent convex curve shape of crown among Fig. 5.Figure 6 shows that a tooth of dioptric lens, E, F are respectively the light beam of two different directions, and ∮ 1, ∮ 2 are their incident angles; Light beam E enters and a total reflection has taken place behind the dioptric lens penetrate then in mirror; Light beam F directly passes dioptric lens and reflects, after the refraction of most incident light scioptics, to α or α ' angle right direction deflection penetrate, light beam is by behind the dioptric lens, light beam is penetrated with the angle of pressing close to the lens plane, in this case, near 90 degree, the refractive power effect of dioptric lens is good more more for incident angle ∮ 1, ∮ 2.

Claims (2)

1, a kind of dioptric lens is characterized in that: its vertical sectional shape is a rectangle; Shape of cross section is a serrate, and crown all is positioned at the homonymy of tooth root perpendicular bisector; Have one apart from d between its each tooth root, d 〉=0; In the triangle that xsect upside crown and tooth root form the minor face adjacent with crown right angle 0 degree≤α≤20 degree, long limit right angle 20 degree≤β≤90 spend; In the triangle that xsect downside crown and tooth root form the minor face adjacent with crown right angle 0 degree≤α '≤20 degree, long limit right angle 0 degree≤β '≤90 spend.

2, dioptric lens as claimed in claim 1 is characterized in that on xsect, crown adjacent long limit be the convex curve that outwards protrudes.

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