CN201194029Y

CN201194029Y - Construction of self-focusing lens glass array

Info

Publication number: CN201194029Y
Application number: CNU2008201113986U
Authority: CN
Inventors: 徐秋霜; 强西林; 陈松明; 倪振东
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-04-18
Filing date: 2008-04-18
Publication date: 2009-02-11
Anticipated expiration: 2018-04-18

Abstract

The utility model relates to a self-focusing lens glass array structure which uses multiple focusing lens. The focusing lens is made from: 30-45%wt of SiO2, 0-6%wt of K2O, 5-12%wt of NA2O, 6-12%wt of ZnO, 32-46%wt of Tl2O, 2-10%wt of B2O3 and 0-5%wt of Nb2O5; the shape of the focusing lens are quadrilateral or polygon; and all the focusing lens are arranged into array pattern fixed by the rubber films disposed there between. The utility realizes seamless joint of the focusing lens, makes the block coefficient larger than 0.9, and achieves better optical property.

Description

The structure of self-focusing lens glass array

[technical field]

The utility model is a kind of self-focusing lens glass, and it refers to a kind of structure of self-focusing lens glass array especially.

[background technology]

At present, as everyone knows, the size of traditional optical components and parts is generally all bigger, usually all more than the millimeter magnitude, for example: the lens, the prism that adopt the glass cold processing technique to make, because the restriction of technology, diameter is all more than 1 millimeter, make littler (as the micron) lens of diameter, this technology generally all is impossible.In order to make micro lens, just can not adopt traditional machining process, and the optics micro-processing method that must adopt new development to get up.1969, the people such as Beiye one youth of Japan, adopt ion-exchange process to produce a kind of new type lens---variable refractivity lens (being GRIN Lens) radially, the appearance of GRIN Lens is certainty of high-tech high speed development, is the urgent need that develops advanced productivity.Because GRIN Lens has short focal length, large-numerical aperture, small size, high resolving power and characteristics such as easy to use, is widely used in optical information transmission, optical information processing, Fibre Optical Sensor and the optical computing technology.And greatly promoted little engineering, in particular for the fast development of little optics.Micro-optics (Micro-Optics) speech is at first to be proposed by auspicious two Mr.s in the interior field of Nippon Electric Company, Ltd. in nineteen eighty-three, he be along with for engineering particularly the fast development of optical fiber communication the micro-optics device is had under the background of huge requirement and grows up.

Along with science and technology development, the particularly development of optical information technology, this important feature of concurrency of optical information is given full play in requirement, just need to adopt intensive, regularly arranged, the uniform microlens array of optical property, so, the microminiaturization of optical component, array, integrated important directions and the current high-tech important development forward position that just becomes the development of micro-optics device.Succeeding in developing of self-focusing planar microlens array makes variable refractivity lens develop into the face array component from discrete original paper, promoted micro-optical device, waveguide device, integrated photon to learn array, microminiaturization and the lightweight of device.Because that the self-focusing plane is that lens arra itself has is small-sized, array, change folding and bury characteristics such as (lens are not in substrate inside), has just embodied the characteristics of multidisciplinary intersections such as integrated optics and micro-optics.

The development of microlens array and application, can trace back to last century the earliest at the beginning of the opal lens board integral photographic art that proposes of Lippmann, this adopts mechanical engraving technology to make, size is in the millimeter magnitude, but the artificial engraving of small size is very difficult.1980, in order to develop column lens array in the grid high-speed camera structure, someone Ceng Xiang adopts the GRIN Lens of diameter 0.5mm, constitute lens arra by the mechanical arrangement method, though this method can be made microlens array, but the arrangement precision of lens arra is not high, and arrangement technology is also very difficult, and optical homogeneity also seldom arrives assurance.

The development of microlens array mainly is in the eighties in 20th century, and on the microelectric technique basis, the optics micro-processing technology has had and develops rapidly, the new technology of a series of making microlens arrays occurred.According to the image-forming principle difference, microlens array can be divided into refractive and diffraction type two big classes.The main technique that the refractive microlens array is made has: photoetching ion-exchange process, photosensitive Technology for Heating Processing, photoetching thermoforming process, ion beam etching etc.Diffractive microlens array mainly contains Fresnel Lenses, holographic lens and the binary optical that grows up on this basis etc.

Again, optical fiber communication has become the indispensable nervous system of current information society, and optical passive component is the important component part of optical fiber communication equipment, also is Fibre Optical Sensor and the indispensable optical device in other field.In optical fiber communication to high capacity, today of two-forty development, the importance of optical passive component will be given prominence to more because GRIN Lens has good optically focused, collimation, characteristics such as imaging, therefore GRIN Lens be improve the optical passive component performance a pith GRIN Lens succeed in developing the research that has promoted greatly medium of varying refractive index, not only promoted the fast development of variable refractivity optical theory, and the multiple micro-optics device of making based on GRIN Lens is in optical fiber communication, in the field such as Fibre Optical Sensor and optical information each subject development is played vital role and therefore made great efforts development, exploitation, improve the performance of GRIN Lens, the very important so-called array lens of application prospect of understanding GRIN Lens is exactly a lot of little optical lens of evenly distributed identical parameters on sheet glass, makes that the light beam that projects on the sheet glass is even.

Moreover though the bonding technique origin very early, the systematic research and development of adhesive and bonding technique but are the things of nearly decades.In advanced country, be applied to structural bonding technique exploitation, as vehicle structure, building, bridge etc. are nearly two, 30 years thing only.Yet compared to traditional solder technology, no matter at aspects such as cost, manpower, product design, production environments, bonding technique all has preferable condition.The step of gummed be comprise wetting: when a drop with after solid surface contact, the process of the automatic increase of surface of contact is called wettingly, mainly is caused by surface tension effects.The contact angle of drop and solid surface is more little, and wetting situation is good more.And gluing: adhesive must form the purpose that gluing power just can reach gummed to by the wetting just prerequisite of gummed of binder.Gluing power is adhesive and glutinous acting force or the adhesion of thing on the interface of quilt, comprising mechanical bond power, molecular force and chemical bonded refractory power.

Yet, use the activity coefficient of selfoc lens array at present greatly about about 0.7, activity coefficient is the effective discharge area of selfoc lens array and the ratio of the area of lens arra own, it is 1 best that activity coefficient more levels off to, in view of this, this creation is to utilize bonding technique to solve the optical problem of known selfoc lens array according to above-mentioned item.

[utility model content]

Fundamental purpose of the present utility model provides a kind of structure of selfoc lens array, it is for being used in several condenser lenses, its shape is quadrilateral or polygon, connect (this connected mode is called optical cement) as fixing in the physical property of leaning on optical surface self each other, and be arranged in array pattern, realized seamless link between a little these condenser lenses, and made activity coefficient, made optical good superior greater than 0.9.

Be to realize the purpose of this utility model, the utility model adopts following technical scheme: be to use the optical contant technology, so that a plurality of condenser lens produces seamless link when being connected to each other, use quadrilateral or polygonal poly-glue glass lens to be arranged in array.

With respect to prior art, the utlity model has following advantage: owing to use the optical contant technology, and using quadrilateral or polygonal condenser lens to be arranged in the self-focusing lens arra, the activity coefficient that makes these a few focusing lens arrays improves its optical property greatly greater than 0.9.

[description of drawings]

It is the structural representation of a preferred embodiment of the present utility model for Fig. 1.

It is the structural representation of another preferred embodiment of the present utility model for Fig. 2.

10 condenser lens glass arrays

12 cover glasses

20 condenser lenses

22 optical cements

30 condenser lens glass arrays

40 condenser lenses

42 optical cements

[embodiment]

Because the self-focusing lens glass array of conventional art is to use single circular condenser lens to arrange, and between each lens, use glue to connect, thereby realize the self-focusing lens glass array, its activity coefficient is approximately only about 0.7, cause poor optical properties, the utility model is to improve its activity coefficient to promote its optical property.

At first, see also Fig. 1, it is the structural representation of a preferred embodiment of the present utility model; As shown in the figure, condenser lens glass array 10 of the present utility model comprises its weight proportion of condenser lens 20 compositions and comprises: the SiO of 30-45% ₂, the K of 0-6% ₂O, the NA of 5-12% ₂O, the ZnO of 6-12%, the Tl of 32-46% ₂O, the B of 2-10% ₂O ₃, the Nb of 0-5% ₂O5; its structure is to comprise to be to use optical cement 22 with as fixing between those GRIN Lens 20; present embodiment is to use quadrilateral with as an explanation; owing to use quadrilateral when arranging; adopt optical cement technology to form selfoc lens array 10; one cover glass 12 is set, with usefulness as this self-focusing array 10 of protection in the top of this self-focusing array 10.The utility model is to use the optical contant technology connecting each condenser lens 20, and because the adjacent side of each condenser lens 20 all can contact with each other, makes that the activity coefficient of selfoc lens array 10 is greater than 0.9, and its optical property is very superior.

See also figure two, it is the structural representation of a preferred embodiment of the present utility model; As shown in the figure, the focusing lens array 30 of present embodiment uses difform condenser lens 40 with the focusing lens array that is not both present embodiment of the focusing lens array 10 of a last embodiment 30, its structure is to comprise to be to use optical cement 42 with as fixing between these a few condenser lenses 40, the condenser lens 40 of present embodiment is to use hexagon with when arranging, all adjacent sides all can contact, to implement the spirit of the present utility model of seamless link.

In sum, spirit of the present utility model is to use the every adjacent side of each condenser lens all can contact with each other, but quadrilateral or polygon all can, improve its activity coefficient by this to level off to 1, make the effective discharge area of light to improve, increase the optical of selfoc lens array.

Claims

1. the structure of a selfoc lens array is to comprise a plurality of condenser lenses, and the weight proportion of these a few condenser lenses comprises: the SiO of 30-45% ₂, the K of 0-6% ₂O, the NA of 5-12% ₂O, the ZnO of 6-12%, the Tl of 32-46% ₂O, the B of 2-10% ₂O ₃, the Nb of 0-5% ₂O5 is characterized in that: be to adopt the optical contant technology with as fixing between these a few condenser lenses, and be arranged in array, these a few lens are to be quadrilateral or polygon.

2. the structure of selfoc lens array according to claim 1, be characterised in that: the outside of this lens arra is provided with four block protection glass.

3. the structure of selfoc lens array according to claim 1, be characterised in that: the activity coefficient of this GRIN Lens is greater than 0.9.

4. the structure of selfoc lens array according to claim 1 is characterised in that: adopt the optical contant technology to realize connection between the single lens.