CN104854483A - Method for manufacturing lens array structure, and lens array structure - Google Patents

Abstract

Provided is a method for manufacturing a lens array structure, whereby the occurrence of defective products can be suppressed by minimizing the occurrence of bubbling or riding up of an adhesive on an optical surface. When an adhesive (83) is applied between first lens elements (12e) formed on a lens array 10, 20, since an additional pattern (PA1) of the adhesive (83) is formed outside the lens elements (10p) on an outer edge among the first lens elements (12e), pushing out of the adhesive (83) applied on the periphery of the outside lens elements (10p) to the surroundings can be limited. The adhesive (83) can thereby be prevented from riding up toward the optical surfaces of the lens elements (10p) or forming bubbles around the lens elements (10p), and the occurrence of defective products can be suppressed.

Description

The manufacture method of lens arra tectosome and lens arra tectosome

Technical field

The present invention relates to manufacture method and the lens arra tectosome of lens arra tectosome lens section being shaped to array-like on substrate, particularly relate to the manufacture method etc. of the lens arra tectosome of the spacer possessed as supporting mass.

Background technology

As wafer lens, there are the lens (with reference to patent documentation 1) forming the resinous layer being arranged with multiple lens at the pros and cons of the transparent substrate of glass.This wafer lens is through making by the transfer printing from master mold or the transfer printing of transparent mould that obtains more than master mold transfer printing once.In addition, the surface of the substrate of wafer lens is covered by the shape layer of one.When wafer lens laminated multi-layer is manufactured the duplexer of wafer lens, sandwiched between wafer lens is needed to support upper and lower wafer lens and adjustment is positioned at the spacer of the configuration relation between upper and lower lens section.In addition, in order to the configuration relation when wafer lens installs photo detector between the adjustment lens section of wafer lens and photo detector, there is the situation of installing spacer in advance at wafer lens.When manufacturing above-mentioned duplexer, wafer lens or spacer surperficial application of adhesive and wafer lens and spacer are bonded with each other.When for above-mentioned wafer lens, the thickness of shape layer can be changed accordingly with the deviation of the thickness of substrate, can the thin and thickness of adhesive phase when keeping stacked consistently.

In addition, as the wafer lens of other type, also there are the lens (with reference to patent documentation 2) being separately arranged with multiple independently lens section on substrate.This wafer lens is made in the following manner, that is: on substrate, supply the lenticular resins of multiple bulk accordingly with the arrangement of lens, and said lens resin is shaping in the lump and form multiple independently lens section by the transfer printing of mould.In this case, the part that the surface forming substrate between adjacent lens section is exposed.

In addition, as can the spacer of stacked wafer by engaging with wafer lens etc., there is the spacer (with reference to patent documentation 3) using curable material shaping.Be formed with depression, groove at this spacer, bubble when release and wafer lens bond, limit the flowing of bonding agent thus prevent bonding agent from entering the opening of spacer.

For the coating of bonding agent, be generally the method using screen painting, divider.When using screen painting, because wafer lens exists projection, so be appropriate to the surperficial application of adhesive of spacer.When using divider, owing to no matter all can apply with or without projection, so all can apply at wafer lens and spacer.Particularly when using divider, can consider bonding agent be applied to the method for grid frame-shaped and be applied to the method for grid point-like independently.Under any circumstance, during in order to prevent the duplexer after cutting bonding, the cleaning liquid such as water of the spray when cutting invades single-piece inner, ites is desirable to expand bonding agent when stacked thus makes to be impaled by bonding agent around lens and inside is airtight.

When application of adhesive as described above, the periphery of the lens section (hereinafter referred to as border lens portion) at the edge of most peripheral configuration is compared with the periphery of the lens section (hereinafter referred to as interior lens portion) of the inside inside being configured at than this border lens portion, and the coated conditions of structure, bonding agent is different.Therefore, the bonding agent of the periphery in border lens portion carries out the movement different from the bonding agent of the periphery in interior lens portion.Such as consider, in the duplexer of clamping bonding agent, owing to leaning on the draught head closing the open area in the outside in space or closed region and border lens portion formed around ectocentral lens section, the air closed in space moves and is extruded by the bonding agent of the surrounding being filled in border lens portion etc., produces the situation of optical surface on bonding agent or easily forms bubble.Worry owing to producing bubble and be difficult to the sufficient cohesive guaranteeing wafer lens and spacer.When particularly producing bubble on line of cut, produce following problem when cutting afterwards.To during by the tectosome bonding as wafer lens and the spacer of lens arra and obtain is cut, in order to prevent dispersing of the tectosome after cutting off, paste the dicing tape of the low bounding force that can take off at the back side of spacer, cut in the mode of incomplete cut-off dicing tape.Now, if there is bubble as described above on line of cut, then directly do not posting in the wafer lens of dicing tape, because the bounding force of the lower surface to periphery dies down, so cutting-off process at the middle and upper levels the fragment of the periphery of side easily peel off and disperse.If the optical surface on the fragment dispersed and top is collided, then become the defect of product because fragment forms wound to optical surface.

In addition, propose in patent documentation 1 grade on substrate the shape layer of moulding resin method in, the shape layer on substrate and between spacer sandwiched bonding agent carry out stacked.In this case, when cutting, stress concentrates on shape layer, is easily peeling off with shape layer in the interface of substrate.In addition, because shape layer becomes to be integrated in wafer face, so there is the easily bending thus shortcoming of the THICKNESS CONTROL difficulty of duplexer that is that obtain like this of impact that wafer lens is cured contraction.

In addition, as proposed in patent documentation 2 on substrate shaping independently lens section method in, can, in the direct coated with adhesive of the real estate of wafer lens, can expect in principle, eliminate the situation causing stripping due to cutting.In addition, can avoid the scale error mentioned by patent documentation 1, shaping thick error, optical property error etc. generation in, in the method for patent documentation 2 by adjustment adhesive phase abundant existing.But, in the method for patent documentation 2, when the thickness of adhesive phase is increased, if Resin Flow time stacked increases, the closed region impaled by bonding agent is produced when lamination process carries out, gap shrinks between the wafer lens then caused along with the carrying out by operation and spacer, the air pressure of closed region increases.Now, between closed region, there is draught head if consider, be then subject to its impact, bonding agent invades to photofacial that to become optics bad, or generation bubble, is sky when cutting off towards the hole of optical surface thus cutting water immersion section becomes the reason that optical surface is polluted.

And, although when spacer being formed as suppressing bonding agent to invade the effect of lens section for suppressing can to expect when the shape of resin flows as described in Patent Document 3, but as also mentioned in patent documentation 1, the possibility of the problem that is bent to of spacer is higher.In addition, easily expect the increase such as cost of manufacture, molding procedure of the mould for making spacer thus operation complicates further this shortcoming.

Patent documentation 1: International Publication WO2009/133756 publication

Patent documentation 2: Japanese Unexamined Patent Application Publication 2009-530136 publication

Patent documentation 3: Japanese Unexamined Patent Application Publication 2011-508900 publication

Summary of the invention

The object of the present invention is to provide by suppress bonding agent on optical surface, the generation of bubble and the lens arra tectosome that can suppress the manufacture method of the lens arra tectosome of the generation of unacceptable product and be obtained by this manufacture method.

In addition, the object of the present invention is to provide and possess cheapness and the optics that caused by the bonding agent for stationary partition of bending less spacer and preventing is bad, and the manufacture method lens arra tectosome of the pollution of optical surface not easily occurring when cutting and the lens arra tectosome obtained by this manufacture method.

To achieve these goals, the manufacture method of lens arra tectosome of the present invention possesses: prepare the operation with the lens arra of multiple lens body; Prepare the operation with the spacer of the opening corresponding with lens body; Bonding agent is coated on the operation of the side in the carrying plane of lens arra and the end face of spacer with the coating pattern of the regulation of the rule that can configure around each of multiple lens body; Carrying plane and end face is made to clamp the opposed and operation that is that lens arra and spacer are fitted of adhesive floor; And operation lens arra to be engaged with spacer by the bonding agent solidification making to be sandwiched between carrying plane with end face, in the operation of application of adhesive, at least one party in the outside of the opening of the outer edge side in the outside of the lens body of the outer edge side in lens body and opening forms the additional pattern of bonding agent.Specifically, such as when being formed at application of adhesive between the lens body on lens arra, the outside of the lens body of the outer edge side in lens body forms the additional pattern of bonding agent, when between the opening being formed at spacer when application of adhesive, the outside of the opening of outer edge side in the opening forms the additional pattern of bonding agent.

In concrete side of the present invention or mode, in the manufacture method of said lens array structure body, the coating pattern of regulation is the basic pattern of the multiple unit cell pattern comprising repetition, and additional pattern comprises the pattern elements different from unit cell pattern.In addition, for basic pattern, such as, when pattern that is wide or same diameter arranges regularly relative to each lens body being positioned at inner side, from each lens body, the unit cell pattern such as can regarding rectangle or corner point-like as repeats.

In other side of the present invention, additional pattern is a pattern part for unit cell pattern widened.

In other side another of the present invention, additional pattern is pattern unit cell pattern distortion obtained.

In other side another of the present invention, the coating pattern of regulation is the basic pattern of the multiple unit cell pattern comprising repetition, and additional pattern comprises the pattern elements identical with unit cell pattern, and is expanded continuously by the coating pattern of regulation.

In other side another of the present invention, additional pattern comprises the pattern elements different from unit cell pattern.

In other side another of the present invention, it is high that additional pattern applies density compared with unit cell pattern.

In other side another of the present invention, additional pattern has the closed region for the formation of space.

In other side another of the present invention, the coating pattern of regulation is distributed in the grid point between the lens body that formed on lens arra or on grid frame.

In other side another of the present invention, the surrounding of the opening be formed on spacer seamlessly fills by the coating pattern of regulation.

In other side another of the present invention, when preparing lens arra, the outside of the lens body of the outer edge side in lens body forms virtual lens.Here, the profile after virtual lens refers to cutting is discontented with the given size of the monolithic of foot-eye and the three-dimensional shape of the similar lens formed in the region that cannot use.

In other side another of the present invention, virtual lens at least partially compared with lens body occupied area narrow.

In other side another of the present invention, when preparing spacer, the outside of the opening of outer edge side in the opening forms virtual aperture.Here, the profile after virtual aperture refers to cutting is discontented with the given size of the monolithic of foot-eye and the hole formed in the region that cannot use.

In other side another of the present invention, virtual aperture at least partially compared with opening occupied area narrow.

In other side another of the present invention, in the operation preparing lens arra, prepare that there is substrate, shaping and multiple lens section respectively with optical surface and the lens arra of the projection of dykes and dams shape will surrounded around the optical surface on the real estate of a side on the real estate of at least one party of substrate, in the operation making lens arra and spacer fit, be solidified to form with the bonding agent between spacer the bonding part engaged with spacer by lens arra by making the real estate of the side being sandwiched in lens arra.

In other side another of the present invention, by the quantity delivered by being separately supplied to the lens resin material forming lens section between substrate and transfer mold, be adjusted to the amount needed for optical surface exceeding and form lens section, thus form the projection of dykes and dams shape.

To achieve these goals, lens arra tectosome of the present invention possesses: lens arra, and it has substrate and shaping and have multiple lens sections of optical surface respectively on the real estate of at least one party of substrate; Spacer, it is arranged at the substrate surface side of a side, and has the opening corresponding with lens section; And bonding part, its being solidified to form by bonding agent, and lens arra is engaged with spacer, the outside of lens body and the outside of the opening of the outer edge side in opening of the outer edge side of bonding part in lens body have with multiple lens body each around different additional drafting department.

In other side of the present invention, in said lens array structure body, lens arra has the projection of the dykes and dams shape surrounding of the optical surface on the real estate of a side surrounded, and bonding part is set to stretch out from the end face of spacer and the opposed region of lens arra.In addition, lens arra tectosome is not limited to be laminated with multiple lens arra, also comprises the tectosome etc. being laminated with independent lens arra and sensor array etc.

In other side another of the present invention, by the quantity delivered by being separately supplied to the lens resin material forming lens section between substrate and transfer mold, be adjusted to the amount needed for optical surface exceeding and form lens section, thus the projection of dykes and dams shape and lens section form.

In other side another of the present invention, by carrying out transfer printing to the structure in transfer mold, thus the projection of dykes and dams shape and lens section form.In addition, the structure in the transfer mold of the projection of the dykes and dams shape stoped for transfer printing resin can have the expansion transfer surface that the surrounding to the transfer surface of optical surface expands.

In other side another of the present invention, the projection of dykes and dams shape is set in the form of a ring and becomes multilayer in the direction vertical with circumference.

In other side another of the present invention, the projection of dykes and dams shape is equal with the thickness of the adhesive phase extended between the end face at spacer bonding part and the real estate of a side from the height that the real estate of a side is started at, or for more than the thickness of adhesive phase that extends between the end face at spacer in bonding part and the real estate of a side.

In other side another of the present invention, multiple lens section is configured at the position of grid point independently.

In other side another of the present invention, bonding part by light-cured resin containing to have under normal temperature in solid and the bonding agent being changed to the solid epoxy compound of aqueous character by heating is formed.

In other side another of the present invention, solid epoxy compound is the compound with the molecular configuration in repetitive with aromatic rings.Have the epoxy compound comprising the molecular configuration of aromatic rings at repetitive and have following character, that is: crystallinity is high, at 25 DEG C, sharply reduce the character of (aqueousization) in solid in the temperature province medium viscosity higher than 25 DEG C.

In other side another of the present invention, the viscosity of bonding agent at 25 DEG C is more than 6000cP below 15000cP.Be preferably more than 7000cP, be more preferably more than 8000cP.

In other side another of the present invention, the thixotropic ratio of bonding agent at 25 DEG C is less than more than 1.05 1.3.

In other side another of the present invention, the bond strength after the solidification of bonding agent is more than 0.4MPa.

In other side another of the present invention, also possesses the other lenses array that with clamping spacer opposed with lens arra mode engages with spacer.

Accompanying drawing explanation

Figure 1A is the vertical view of the lens arra tectosome of the first embodiment, and Figure 1B is that the A-A of the lens arra tectosome shown in Figure 1A is to the cut-open view looked.

Fig. 2 A is the process flow diagram be described the manufacturing process of lens arra tectosome, and Fig. 2 B is the process flow diagram be described the manufacturing process of lens arra.

Fig. 3 A ~ Fig. 3 E is the cut-open view be described the manufacturing process of lens arra tectosome.

Fig. 4 A ~ Fig. 4 C is the cut-open view be described the manufacturing process of lens arra tectosome.

Fig. 5 A is the vertical view of the lens arra forming the lens arra tectosome shown in Figure 1A etc., and Fig. 5 B is that the A-A of the lens arra shown in Fig. 5 A is to the cut-open view looked.

Fig. 6 A is the vertical view of the spacer forming the lens arra tectosome shown in Figure 1A etc., and Fig. 6 B is that the A-A of the spacer shown in Fig. 6 A is to the cut-open view looked.

Fig. 7 is the figure representing the coating pattern that bonding agent applies on lens arra.

Fig. 8 A and 8B is the vertical view be described the bonding process of spacer.

Fig. 9 A ~ Fig. 9 C is the vertical view be described the manufacture method of comparative example.

The cut-open view of the lens arra tectosome that Figure 10 is further stacked lens arra tectosome and obtains.

Figure 11 A is the figure representing the coating pattern that bonding agent applies to the lens arra of the lens arra tectosome of formation second embodiment, Figure 11 B is the figure be described by coating pattern partial enlargement.

Figure 12 is the figure representing the coating pattern that bonding agent applies to the lens arra of the lens arra tectosome of formation the 3rd embodiment.

Figure 13 is the figure representing the coating pattern that bonding agent applies to the spacer of the lens arra tectosome of formation the 4th embodiment.

The figure of Figure 14 A coating pattern that to be bonding agent apply to the lens arra of the lens arra tectosome of formation the 5th embodiment, Figure 14 B is the figure representing the spacer engaged with the lens arra of Figure 14 A.

The figure of Figure 15 A coating pattern that to be bonding agent apply to the lens arra of the lens arra tectosome of formation the 6th embodiment, Figure 15 B is the figure representing the spacer engaged with the lens arra of Figure 15 A.

Figure 16 A is the figure of the lens arra of the lens arra tectosome representing formation the 7th embodiment, Figure 16 B is the figure representing the coating pattern that bonding agent applies to the spacer engaged with the lens arra of Figure 16 A.

Figure 17 A is the vertical view of the lens arra tectosome of the 8th embodiment, and Figure 17 B is that the A-A of the lens arra tectosome shown in Figure 17 A is to the cut-open view looked.In addition, Figure 17 C is the lens arra tectosome shown in further stacked Figure 17 B and the cut-open view of the lens arra tectosome obtained.

Figure 18 is the amplification view of the optical devices obtained from the lens arra tectosome shown in Figure 17 A etc.

Figure 19 A is in order to the periphery of lens feature and the cut-open view after amplifying further are described by the figure of the partial enlargement such as the compound lens shown in Figure 17 B etc., Figure 19 B.

Figure 20 A ~ Figure 20 E is the cut-open view be described the manufacturing process of lens arra tectosome.

Figure 21 A ~ Figure 21 C is the cut-open view be described the manufacturing process of lens arra tectosome.

Figure 22 A is the amplification view be described the resin portion of overflowing around transfer section, and Figure 22 B is the figure be described the variation of the transfer section shown in Figure 22 A.

Figure 23 A ~ Figure 23 C is the vertical view be described the bonding process of spacer.

Figure 24 A ~ Figure 24 C is the vertical view be described the manufacture method of comparative example.

Figure 25 A and Figure 25 B is the cut-open view be described the lens arra tectosome of the 9th embodiment.

Figure 26 A and Figure 26 B is the cut-open view be described the lens arra tectosome of the tenth embodiment.

Embodiment

(the first embodiment)

A) lens arra tectosome

Be described with reference to the structure etc. of accompanying drawing to the lens arra tectosome of the first embodiment of the present invention.

As shown in Figure 1A and 1B, the lens arra tectosome 100 of present embodiment is by the first lens arra 10 and the first spacer 30 being fitted via bonding part 50 thus stacked and duplexer that is that obtain.First lens arra 10 is the flat-shaped parts extended abreast with XY face, and the first spacer 30 is also the flat-shaped part extended abreast with XY face.First lens arra 10 and the first spacer 30 stacked along Z-direction.

The first lens arra 10 in lens arra tectosome 100 is discoid, possesses substrate 11, first resin bed 12 and the second resin bed 13.Here, the first and second resin bed 12,13 is made up of the multiple parts arranged in grid point, and each several part is about going forward side by side and around the rotation of axle AX, mutually alignedly engaging with substrate 11 in the XY face vertical with axle AX.At the first lens arra 10, be formed with multiple compound lens 10e as the optical element forming it, multiple compound lens 10e arranges two-dimensionally along XY face.Each compound lens 10e becomes the lens corresponding with the various piece of formation first and second resin bed 12,13.Compound lens 10e has: lens body 10a, and it forms optical surface; And flange part 10b, it is present in the periphery of lens body 10a.

Substrate 11 in first lens arra 10 is the flat boards extended throughout the entirety of the first lens arra 10, is formed by glass.Although the thickness of substrate 11 is determined by optical standard substantially, be that the first lens arra 10 can not the thickness (such as about 0.2mm ~ 0.7mm) of damaged degree when the demoulding.The central portion that substrate 11 forms the lens body 10a of compound lens 10e and the flange part 10b extended around it.In addition, substrate 11 also can be formed by materials such as resins.

First resin bed 12 is resinous, and the real estate 11a of a side being arranged at substrate 11 is formed discretely.First resin bed 12 has multiple first lens feature 12e.Each first lens feature 12e has circular wheel Guo, independent with the state be separated from each other.First lens feature 12e forms the top of the lens body 10a of compound lens 10e.Be arranged in each first lens feature 12e XY face on the substrate 11 in the foursquare grid point of two dimension.Each first lens feature 12e is the lens section of the aspherical types of convex, has the first optical surface 12a.The whole first optical surface 12a forming the first resin bed 12 are shaping in the lump by transfer printing.In addition, although in the part not being formed with the first lens feature 12e, the real estate 11a of substrate 11 exposes, and this exposing surface becomes the carrying plane 11f of the first spacer 30 described later.

Second resin bed 13 is identical with the first resin bed 12, is resinous, and the real estate 11b of the opposing party being arranged at substrate 11 is formed.Second resin bed 13 has multiple second lens feature 13e.Each second lens feature 13e has circular wheel Guo, independent with the state be separated from each other.Second lens feature 13e forms the bottom of the lens body 10a of compound lens 10e.Each second lens feature 13e arranges in XY face on the substrate 11 two-dimensionally.The position of each second lens feature 13e becomes the position corresponding with the position of each first lens feature 12e of the opposition side of substrate 11.Each second lens feature 13e is the lens section of the aspherical types of convex, has the second optical surface 13a.The whole second optical surface 13a forming the second resin bed 13 are shaping in the lump by transfer printing.In addition, although in the part not being formed with the second lens feature 13e, the real estate 11b of substrate 11 exposes, and this exposing surface becomes the carrying plane of the second spacer 40 described later.

First and second resin bed 12,13 is formed by the light-cured resin as lens resin material.Light-cured resin contains the Photoepolymerizationinitiater initiater that the polymerization of light-cured resin is started.As light-cured resin, can use acrylic resin, allyl ester resin, epikote, vinylite etc.When using acrylic resin, allyl ester resin, vinylite, it can be made to react solidification by the free radical polymerization of Photoepolymerizationinitiater initiater, at use epikote in situation, it can be made to react solidification by the cationic polymerization of Photoepolymerizationinitiater initiater.In addition, two resin beds 12,13 can be formed by identical light-cured resin, also can be formed by different light-cured resins.

First spacer 30 is the flat-shaped parts formed by glass, resin etc.First spacer 30 is parts of the support unit performance function as the first lens arra 10, is arranged at the first resin bed 12 side of the first lens arra 10.First spacer 30 has spacer main body 31 and multiple opening 32.Spacer main body 31 configures in the mode that can not occur to disturb with the first lens feature 12e of lens body 10a.Opening 32 is roughly rounded, is formed as through hole in the position corresponding with lens body 10a.

Bonding part 50 is such as formed by the bonding agent employing light-cured resin.Bonding part 50 is the parts of the film-form be arranged between the substrate 11 of the first lens arra 10 and spacer main body 31.Bonding part 50 is clamped by the end face 31b of real estate 11a and spacer main body 31, thus the first lens arra 10 and the first spacer 30 is interfixed.Bonding part 50 is formed by the pattern roughly the same with spacer main body 31, and the first lens arra 10 engages airtightly with the first spacer 30.

B) manufacture method of lens arra tectosome

With reference to Fig. 2 A etc., the manufacturing process of the lens arra tectosome 100 shown in Figure 1A and Figure 1B is described.

First, the first lens arra 10 (step S11) is prepared by manufacturing the first lens arra 10 forming lens arra tectosome 100.The summary of the manufacturing process of the first lens arra 10 as shown in Figure 2 B.

As shown in Figure 3A and 3B, the transfer mold 72 (step S21) of the first resin bed 12 grade for the formation of the first lens arra 10 shown in Figure 1B is made.Specifically, prepare master mold 71, this master mold 71 is provided with transfer surface 71b, and this transfer surface 71b has the multiple transfer section 71as corresponding with multiple first optical surface 12a of the first resin bed 12 (with reference to Fig. 3 D) formed after formation.On the other hand, the substrate 73 of the glass of the transfer mold 72 of composition of preparation first resin bed 12, effects on surface 73a implements the hydrophilicity-imparting treatment such as silane coupled process, Cement Composite Treated by Plasma.Then, on the surperficial 73a or master mold 71 of substrate 73, supply uncured resin 81, make the surperficial 73a of the transfer surface 71b of master mold 71 and substrate 73 close, and press with authorised pressure.Next, from 73b side, the back side irradiation ultraviolet radiation of substrate 73, the resin 81 be sandwiched between master mold 71 and substrate 73 is made to be solidified into transfer printing layer 74.Finally, by peelling off substrate 73 from master mold 71, the transfer mold 72 being provided with transfer printing layer 74 on substrate 73 can be obtained.This transfer mold 72 becomes the mould being provided with the transfer surface 72b with the multiple transfer section 72a reversed by multiple first optical surface 12a of formation first resin bed 12.In addition, the surface treatment applying release agent etc. is carried out as required to the transfer surface 72b of transfer mold 72.

In addition, when on substrate 73, supply should become the resin 81 of transfer printing layer 74, although to carry out dripping or applying with the state that each transfer section 72a is separated accordingly on surperficial 73a, also equally can apply on surperficial 73a.In this case, flange part is also covered by resin.

Above, be illustrated the transfer mold 72 of the first resin bed 12 of the first lens arra 10, but the transfer mold (not shown) of the second resin bed 13 shown in Figure 1B etc. is made too, only the shape of transfer surface 71b is different.

Next, as shown in Fig. 3 C and Fig. 3 D, form the first resin bed 12 (step S23) of the first lens arra 10.Specifically, the substrate 11 of composition of preparation first lens arra 10, the real estate 11a of effects on surface implements the hydrophilicity-imparting treatment such as silane coupled process, Cement Composite Treated by Plasma.Then, on the transfer surface 72b of the transfer mold 72 obtained to the operation by step S21 or substrate 11 supply uncured resin 82, make the real estate 11a of the substrate 11 of preparation and transfer mold 72 close, and to carry out with the matched moulds of authorised pressure pressing.Next, from the real estate 11b side irradiation ultraviolet radiation at the back side of substrate 11, the resin 82 be sandwiched between transfer mold 72 and substrate 11 is made to solidify and become the first resin bed 12.Finally, by carrying out the demoulding of being pulled down by substrate 11 from transfer mold 72, the lens arra 110 being provided with the first resin bed 12 in the real estate 11a side on the surface of substrate 11 can be obtained.This lens arra 110 becomes the array being arranged with the first lens feature 12e with the first optical surface 12a on the substrate 11 two-dimensionally.

Next, as shown in FIGURE 3 E, the second resin bed 13 (step S24) of the first lens arra 10 is formed.Second resin bed 13 is formed with the method identical with the first resin bed 12.Thereby, it is possible to obtain the first lens arra 10 being provided with the first resin bed 12 and the second resin bed 13 at the pros and cons of substrate 11.When shaping second resin bed 13, need the configuration of the configuration of the first resin bed 12 with the second resin bed 13 mutually to aim at, lens arra 110 is carried out to the aligning of the precision of the transfer mold of the second resin bed 13.

For the purpose of the intensity improving bonding part 50, regelate (the Port ス ト キ ュ ア) process comprising heating is implemented to the first lens arra 10 obtained as described above.

Fig. 5 A and Fig. 5 B is vertical view and the cut-open view of the first lens arra 10 made by above step S11.

In addition, the second resin bed 13 also can be made with the first resin bed 12 concurrently.In this case, by before substrate 11 is pulled down from transfer mold 72, substrate 11 is made to reverse as required, and on the real estate 11b at the back side of substrate 11 or the transfer mold (not shown) of the second resin bed 13 supply uncured resin 82, the transfer mold (not shown) of the second resin bed 13 is pressed and irradiation ultraviolet radiation to real estate 11b, thus forms the second resin bed 13.Then, by the transfer mold (not shown) that makes the transfer mold 72 of the first resin bed 12 and the second resin bed 13 simultaneously or the one-sided demoulding according to priority, thus the first lens arra 10 from the two transfer mold in the lump demoulding can be obtained.

In addition, before shaping first resin bed 12, second resin bed 13, on any real estate 11a, 11b of substrate 11, barrier film (Twisted り can be formed accordingly with the pattern of lens feature 12e, 13e).Barrier film is such as undertaken portraying pattern by coating black anti-corrosion material thus peripheral region black anti-corrosion agent being arranged at lens feature 12e, 13e is formed.Or, utilize screen painting, ink-jet coating unit, blackwash be coated on the peripheral region of lens feature 12e, 13e, also can form barrier film.

Being back to Fig. 2 A, preparing the first spacer 30 (step S12) by manufacturing the first spacer 30 forming lens arra tectosome 100.Omit concrete diagram, prepare the thin plate such as glass, pottery becoming the material of the first spacer 30, in the appropriate location of this thin plate, form opening 32 with the pattern corresponding with the first lens feature 12e.For the formation of opening 32, the various methods such as Wet-type etching, dry-etching, machining can be used.

Fig. 6 A and Fig. 6 B is vertical view and the cut-open view of the first spacer 30 made by above step S12.

Next, as shown in Fig. 2 A and Fig. 4 A, supply bonding agent 83 (step S13) on the real estate 11a of the substrate 11 of the first lens arra 10 obtained to the operation by above-mentioned steps S11.

Specifically, as shown in Fig. 4 A and Fig. 7, in the exposing surface (carrying plane 11f) not being formed with the first lens feature 12e in the real estate 11a of substrate 11, at the coating zone A1 suitable with surrounding the coating pattern of whole first lens feature 12e, by the application of adhesive 83 such as to drip continuously from discharge nozzle.Coating zone A1 becomes the region relative to the additional pattern P A1 adding the outer rim of surrounding this basic pattern PA0 with the basic pattern PA0 waiting the line of width to surround the grid frame-shaped of each first lens feature 12e.Basic pattern PA0 comprises the unit cell pattern P0 of the multiple square frame-shaped repeated regularly, and constituent parts pattern P 0 is configured to centered by the first lens feature 12e, surround this first lens feature 12e, thus forms closed region ST.That is, the lens feature 10q of center side and the lens feature 10p of outer edge side that form compound lens 10e are impaled by the closed region ST be made up of bonding agent 83 of basic pattern PA0.In addition, for be positioned at inner side each first lens feature 12e, due to wait width pattern respectively rule correctly arrange, so from each first lens feature 12e, the unit cell pattern P0 of repetition rectangular shape can be considered as.That is, basic pattern PA0 become make unit cell pattern P0 with width segments repeat and combination pattern.The pattern making the multiple pattern elements P1 combinations different from unit cell pattern P0 is become at the additional pattern P A1 of the arranged outside of basic pattern PA0.This pattern elements P1 becomes and has the shape similar with a part of unit cell pattern P0 (specifically for shape that the orthogonal both sides or L-shaped part with unit cell pattern P0 are corresponding), and using key element that the outer circumferential side width of the basic pattern PA0 of the part as unit cell pattern P0 is widened.That is, add pattern P A1 to become in the region adjoined at the peripheral direction DX of the lens feature 10p with outer edge side and rise to the pattern higher than the situation of only unit cell pattern P0 by applying density.By additional pattern P A1 is formed as the pattern comprising the pattern elements different from basic pattern PA0, the pattern that additional pattern P A1 becomes corresponding with the movement of the bonding agent 83 of the periphery of the lens body 10a of outer edge side can be made, thus the expansion that the bonding agent 83 that can adjust the periphery of the first lens arra 10 outside fairly simplely.In addition, the pattern widened by a part of width of unit cell pattern P0 is become by making additional pattern P A1, the coating operation of bonding agent 83 can be kept simply, and suitably can regulate the flowing of the bonding agent 83 of the periphery of the lens body 10a being coated on outer edge side.

Although the bonding agent 83 being coated on coating zone A1 also can be made all identical, be not limited thereto.Such as, can at basic pattern PA0 and additional pattern P A1, the bonding agent 83 that coating physical property is different.Specifically, by the bonding agent using viscosity high in additional pattern P A1, the air closing space S S (with reference to Fig. 8 A) near lens feature 10p is made more effectively to be difficult to flee from laterally.In addition, by using the strong adhesive of high bond strength in additional pattern P A1, the splashing of fragment when cutting more effectively can be prevented.In addition, when each compound lens is used by cutting singualtion, due to the position bonded by adding the bonding agent 83 of pattern P A1 is discarded after dicing, thus can with singualtion after lens required for condition (such as bond strength, reflow etc.) independently select.Therefore, the degree of freedom of Material selec-tion is high.

As shown in Figure 4 A, for dripping of bonding agent 83, preferably use the divider 91 of bonding agent.Divider 91 driven part 92 drives thus dimensionally moves, and moves above coating zone (coating pattern) A1 becoming target, drips continuously carried out temperature controlled liquid bonding agent 83 by drive division 92 from the nozzle end 91a of movement.By adjust bonding agent 83 temperature thus become low viscous liquid, the processing speed that bonding agent 83 drips can be improved, thus bonding agent 83 can be coated on to drip a little or the line that drips periphery appropriateness expand coating zone A1.The amount of dripping of bonding agent 83 or quantity delivered become the amount of roughly being filled the space between real estate 11a and the end face 31b of spacer main body 31 being sandwiched in the first lens arra 10 when the end face 31b pressure-sensitive adhesive 83 by the first spacer 30 by bonding agent 83.In addition, for the quantity delivered of bonding agent 83, also can consider the deviation of the amount of dripping make the quantity delivered of bonding agent 83 excessive a little thus around the border of end face 31b and opening 32 spilling.In addition, when applying the different bonding agent of physical property 83 at basic pattern PA0 and additional pattern P A1, due to multiple bonding agent is separately supplied with respective pattern, so multiple divider can be used.

As the concrete material of bonding agent 83 being applied to basic pattern PA0 and additional pattern P A1, comprise host, auxiliary curing agent and curing initiator, and can solvent etc. be comprised.

The bonding agent 83 of embodiment is preferably, the high degree to the flowing applying shape can be suppressed to extend at normal temperature (20 DEG C ± 5 DEG C) of viscosity, and viscosity is low to can as the degree of drop supply at high high temperature more abundant than normal temperature, and containing at the higher epoxy compound of the temperature dependency of normal temperature and adjacent temperature province viscosity thereof.

In the bonding agent 83 of embodiment, as host, such as use (1) is the epoxy compound of solid at normal temperatures, is more preferably the epoxy compound that use (2) has the molecular configuration in repetitive with aromatic rings.Below, the epoxy compound as host is described particularly.

(1) be the epoxy compound of solid at normal temperatures

As the epoxy compound being solid at normal temperatures, be not specially limited.Here, be the epoxy compound of half solid under being also contained in normal temperature in the epoxy compound of solid under normal temperature.

As the epoxy compound being solid at normal temperatures, preferred mean molecular weight is the scope of 500 ~ 10000, is more preferably the scope that mean molecular weight is 1000 ~ 6000.The epoxy compound that mean molecular weight is less than 500 is aqueous at normal temperature substantially, and when the epoxy compound using mean molecular weight more than 10000, the viscosity of bonding agent increases, and is not suitable for coating.

In addition, be certainly not particularly limited in the shape of the epoxy compound of normal temperature solid, but be preferably powder or the shot-like particle that mean grain size is 0.1mm ~ 0.5mm.If mean grain size is less than 0.1mm, although to being the good dispersion of aqueous epoxy compound in room temperature as auxiliary curing agent, there is the situation needing to pulverize, if mean grain size is more than 0.5mm, then exist cannot with other uniform composition ground situation about mixing.

As the epoxy compound being solid at normal temperatures, headed by bisphenol A diglycidyl ether, exemplify and there is Bisphenol F diglycidyl ether, the isostructure epoxy compound of novolaks glycidol ether.In addition, the independent or multiple mixing of these epoxy compounds uses.In addition, due to bonding to as if optical element etc., so the content of ionic impurity preferably headed by chlorion etc. is below 800ppm.

(2) there is the epoxy compound of the molecular configuration in repetitive with aromatic rings

Be in the epoxy compound of solid at normal temperatures, particularly there is the epoxy compound of the molecular configuration in repetitive with aromatic rings, have crystallinity extremely high and become crystalline solid room temperature 25 DEG C and sharply reduce this character in the temperature province medium viscosity higher than 25 DEG C.That is, although above-mentioned epoxy compound is crystalline solid 25 DEG C of room temperature, reduce by heating more than 25 DEG C the destroyed thus viscosity of then crystal structure.

If containing this molecular configuration namely containing there is the bonding agent of epoxy compound of aromatic rings in repetitive for the joint of the first lens arra 10 and the first spacer 30, then the distance between the parts of above-mentioned joint can be remained high precision, and the product of high reliability can be obtained.That is, because above-mentioned epoxy compound by having aromatic rings thus becoming crystallinity individuality room temperature 25 DEG C in repetitive, so the bonding agent containing this epoxy compound becomes at the higher bonding agent of the viscosity of 25 DEG C.Namely, because above-mentioned epoxy compound is by adding thermoviscosity step-down sharp, if so heat while carry out the coating of bonding agent, then viscosity reduces, thus can suppress the deviation of the coated weight caused by the wire drawing can significantly observed in high viscosity compound.In addition, can suppress to have carried out extending coated with rear coating shape flowing on the first lens arra 10 as the object engaged.

Preferred above-mentioned epoxy compound has two or more epoxy radicals in a molecule.By the epoxy compound containing this molecular configuration, the bond strength of bonding agent is more excellent.In addition, by making epoxy compound be below 10 aggressiveness, be easy to the viscosity of the temperature range of 50 of processing ease DEG C ~ 80 DEG C to be set as lower.In addition, as above-mentioned epoxy compound, by using the epoxy compound with the molecular configuration of below 10 aggressiveness, be difficult to precipitation problem when producing keeping.Preferred above-mentioned epoxy compound is below more than 3 aggressiveness 7 aggressiveness.

As above-mentioned epoxy compound, resorcinol type epoxy, naphthalene type epoxy resin, biphenyl type epoxy resin etc. are exemplified.As the sales of this epoxy compound, EX-201 (Chang Lai industry companies system), YSLV-80XY (Dongdu changes into Inc.) etc. are exemplified.By forming bonding part containing the bonding agent had at normal temperature to be solid by heating change the be solid epoxy compound of aqueous character in light-cured resin, and adjust the temperature of object of bonding agent, application of adhesive, improve the viscosity of the bonding agent after coating, suppress the wetting expansion of bonding agent, thus easily maintain the shape of bonding agent.Therefore, it is possible to postpone to be impaled and the generation of the closed region stoping air to be fled from by bonding agent.In addition, when supplying bonding agent by dripping, can temperature control be carried out and the viscosity reduced when dripping, even if in order in more high density and apply between the lens arra of thin space bonding agent use thin footpath pin time, the rising of the bat that also can suppress to drip.Particularly by using the epoxy compound of above-mentioned (2), freely can be regulated by the viscosity during supply of easy temperature control to bonding agent.Specifically, can become by heating when dripping and be suitable for putting the low bonding agent of the viscosity of dripping, after dripping, normal temperature can be back to, become the high bonding agent easily maintaining shape of viscosity, therefore, it is possible to reliably postpone the generation of closed region, thus prevent undesirable flowing of bonding agent, bubble.

As the auxiliary curing agent mixed with the epoxy compound of above-mentioned (1) and (2), be epoxy compound substantially, specifically, novalac epoxy, biphenyl type epoxy resin, dicyclopentadiene type epoxy resin can be used.In addition, the blending ratio of auxiliary curing agent is such as the scope of 20 quality % ~ 80 about quality %.

As the curing initiator added in the epoxy compound of above-mentioned (1) and (2), consider easily operation etc., use Photoepolymerizationinitiater initiater.As Photoepolymerizationinitiater initiater, the UV polymerization initiator that kation produces agent, negative ion produces agent etc. can be used as.For UV polymerization initiator, specifically, as the cationic Photoepolymerizationinitiater initiater of generation, sulfonium salt, salt compounded of iodine, diazo salt, ferrocene salt can be used, as the Photoepolymerizationinitiater initiater producing negative ion, lithium alkyl, carbamic acid derivative, oxime ester derivative, light amine can be used to generate agent.In addition, the adding proportion of UV polymerization initiator is such as the scope of 0.001 quality % ~ 5 about quality %.

The bonding agent 83 of the embodiment of the epoxy compound containing above-mentioned (1) and (2) is 6000cP ~ 15000cP (8Pas ~ 15Pas) in the viscosity of room temperature 25 DEG C, be preferably 7000cP ~ 15000cP, and be the liquid of 1.05 ~ 1.3 the thixotropic ratio of 25 DEG C, be preferably 1000cP ~ 8000cP (1Pas ~ 8Pas) in the upper limit of the viscosity of the temperature ranges of 50 DEG C ~ 80 DEG C.By making the viscosity of bonding agent 83 be more than 6000cP, easily prevent the wetting expansion of bonding agent soon after the coating of to drip etc.In addition, by being below 15000cP, the processing power of divider is easily guaranteed.By making the thixotropic ratio of bonding agent 83 be more than 1.05, can adhesive flow be prevented thus easily become rough situation.In addition, by making thixotropic ratio be less than 1.3, the shape stability of the bonding agent after applying can be avoided excessively to become large thus expand bonding agent with being not easy no concave-convex.In addition, from the viewpoint of the stripping of the spacer preventing from stacked for lens arra body to be arranged at when filming apparatus etc. uses and lens arra, the bond strength that the bonding agent 83 of embodiment is preferably after solidification is more than 0.4MPa.By being 6000cP ~ 15000cP in the viscosity of room temperature 25 DEG C, being 1.05 ~ 1.3 the thixotropic ratios of 25 DEG C, bonding agent 83 can being clamped in room temperature thus make it expand simply between the optics of the first lens arra 10, first spacer 30 etc.But the viscosity of bonding agent 83 also not only depends on epoxy compound, the viscosity of bonding agent 83 suitably can be adjusted by adding other compositions.

Because the bonding agent 83 of embodiment is by the epoxy compound containing above-mentioned (1) and (2), achieve low viscosity during heating, so by only adding existing thinning agent, also space can not be produced as low viscous bonding agent.In addition, due to the excellent heat resistance of above-mentioned epoxy compound, so the thermotolerance containing the bonding agent 83 of the embodiment of this epoxy compound is also excellent.

Distance between the opticses such as the first lens arra 10, first spacer 30, by containing above-mentioned epoxy compound, can be remained high precision by the bonding agent 83 of embodiment, thus improves optical accuracy.That is, the bonding agent 83 be made up of above-mentioned substance can be used near room temperature become butyraceous semi-fluid mass and under the high temperature of the comparison of 50 DEG C ~ 80 DEG C viscosity reduce become liquid bonding agent.Therefore, by utilizing divider etc. to drip this bonding agent 83, bonding agent 83 moderately can be expanded and supply with desired pattern.On the other hand, if temporarily dripped on the opticses such as the first lens arra 10, first spacer 30 by bonding agent 83, then bonding agent 83 is cooled to room temperature rapidly thus viscosity sharply rises.Thus, although describe after detailed content, when making a pair optics such as the first lens arra 10 and the first spacer 30 close thus being expanded by the bonding agent 83 being present in their gap, bonding agent 83 excess flow can be prevented.Further, by adjusting the composition of bonding agent 83, also the different bonding agent of the physical propertys such as viscosity can be applied at basic pattern PA0 from additional pattern P A1.

After step s 13, as shown in Fig. 2 A and Fig. 4 B, the first spacer 30 that operation by step S13 is obtained, critically aim at and be configured at the top of the substrate 11 of the first lens arra 10, the real estate 11a of the first spacer 30 towards substrate 11 is pressed into predetermined distance and makes it edge down upon, thus the bonding agent 83 on substrate 11 is equally expanded, roughly fill the gap (step S14) between spacer 30 and substrate 11 by bonding agent 83.Now, first spacer 30 is supported on the support 94 in end face 31a side with suction jig 94a, and be lifting device 95 driving to be elevated, thus the interval of real estate 11a, 11b etc. of the end face 31b of the first spacer 30 and the first lens arra 10 can be finely tuned.

Fig. 8 A and 8B is the figure be described the diffusion of bonding agent 83.In the state of Fig. 8 A, first spacer 30 is quite close with substrate 11, the area or the wheel Guo that are present in the bonding agent 83 of initial coating zone (coating pattern) A1 of Fig. 7 increase a little, and in a part, the space S S that closes of the surrounding of the first lens feature 12e starts to reduce.In the state of Fig. 8 B, the first spacer 30 approaches to target location with substrate 11, and the gap of the real estate 11a of the first lens arra 10 and the end face 31b of spacer main body 31 becomes suitable state.In a state in which, area or the wheel Guo of bonding agent 83 are increased to maximum limit, at the Zone Full except the first lens feature 12e and periphery thereof, become the state of being filled the gap between spacer 30 and substrate 11 by bonding agent 83.That is, be formed in the position of each first lens feature 12e and periphery thereof and close space S S.In this case, although formed at the periphery of the first lens feature 12e and quite with the closed region ST of basic pattern PA0 close space S S, coating zone (coating pattern) A1 becomes the region of the additional pattern P A1 with the outer rim of surrounding basic pattern PA0.Therefore, this additional pattern P A1 becomes obstacle, the phenomenon that what the mode that can suppress the lens feature 10p covering outer edge side was formed be forced out with closing the peripheral direction DX of the air biased outward of space S S or closed region ST.Thus, stop bonding agent 83 to move to reach the first optical surface 12a on the whole, thus the pollution of the first optical surface 12a can be prevented.

Next, as shown in Fig. 2 A and Fig. 4 B, from the real estate 11b side irradiation ultraviolet radiation at the back side of substrate 11, make the bonding agent 83 be sandwiched between the first lens arra 10 and the first spacer 30 be solidified into bonding part 50 (step S15).Bonding part 50 becomes the knitting layer 51 of the film-form be sandwiched between real estate 11a and spacer main body 31.Then, lens arra tectosome 100 (with reference to Fig. 4 C) is completed by removing suction jig 94a.For this lens arra tectosome 100, in order to improve the intensity of bonding part 50 grade, implement the regelate process comprising heating.In addition, omit detailed description, bonding part 50 becomes the part with the part corresponding with additional pattern P A1.

Fig. 9 A ~ Fig. 9 C is the figure that the problem produced when being only basic pattern PA0 at coating zone (coating pattern) A1 is described conceptually.In these figures, Fig. 9 B illustrates the first lens feature 12e and the lens feature 10q (with reference to Fig. 7) of the center side in lens arra tectosome 100, and bonding agent 83 does not arrive the first optical surface 12a and surrounds the first resin bed 12 roughly in the same way around.But, the non-fill area of bonding agent 83 and bubble 87 is formed although very little.On the other hand, Fig. 9 A and Fig. 9 C illustrates the first lens feature 12e and the lens feature 10p (with reference to Fig. 7) of the perimeter sides in lens arra tectosome 100.Due to the periphery of the first lens feature 12e in perimeter sides, the upside of the first spacer 30 becomes the state sealed by suction jig 94a etc., and because the formation of closing space produces the trend extruded to peripheral direction DX by the bonding agent 83 from central authorities, so a part for bonding agent 83 arrives the first optical surface 12a, around the first lens feature 12e, be formed with bubble 87.

C) as the lens arra tectosome of the duplexer of lens arra

Lens arra tectosome 200 shown in Figure 10 is folded thus the tectosome obtained by the shown compound stratums such as lens arra tectosome 100 grade such as Figure 1A.Illustrated lens arra tectosome 200 has the first lens arra 10, first spacer 30, second lens arra 20 and the second spacer 40.First lens arra 10 and the first spacer 30 form the first lens arra tectosome 100, second lens arra 20 and the second spacer 40 forms the second lens arra tectosome 100 '.First lens arra tectosome 100 engages via bonding part 50 with the second lens arra tectosome 100 '.In addition, ground engagement transducer array 60 can be added further in the first lens arra tectosome 100 side.

In lens arra tectosome 200, the second lens arra 20 forming the second lens arra tectosome 100 ' has the structure identical with the first lens arra 10.That is, the second lens arra 20 possesses substrate 21, first resin bed 22 and the second resin bed 23.As the optical element being arranged as grid point-like, the second lens arra 20 has compound lens 20e.Each compound lens 20e have form optical surface lens body 20a, with the flange part 20b of periphery being present in lens body 20a.Second spacer 40 has the structure identical with the first spacer 30.That is, the second spacer 40 has spacer main body 41 and opening 42.

Manufacture the second lens arra 20 and the second spacer 40 by identical with the first lens arra 10 and the first spacer 30, and they are engaged identically with the situation of lens arra tectosome 100, identical lens arra tectosome 100 ' can be obtained.And, on the exposing surface of the real estate 11b at the back side of formation first lens arra 10 of the first lens arra tectosome 100, such as with the pattern identical with Fig. 7 by under drops of adhesive, and the second spacer 40 of other lens arra tectosome 100 ' is aimed at and suitably close with real estate 11b, and bonding agent is solidified, thus the lens arra tectosome 200 being laminated with a pair lens arra tectosome 100,100 ' can be obtained.Stacked a pair lens arra tectosome 100,100 ' thus the lens arra tectosome 200 obtained by the method identical with the method that a pair lens arra tectosome 100,100 ' is engaged, aim at sensor array 60 and engage thus obtain.

Sensor array 60 possess be made up of CCD, CMOS etc. imageing sensor 60a, with driving circuit (not shown).Each imageing sensor 60a engages with the first lens arra 10 with the state of each compound lens 20e aligning being formed the second lens arra 20 with each compound lens 10e relative to formation first lens arra 10.

Above, when the first lens arra 10 of the lens arra tectosome 100 by a side engages with the second spacer 40 of the lens arra tectosome 100 ' of the opposing party, other the second lens arra 20 is fixed with in advance relative to the second spacer 40.In this case, when the joint of the first lens arra 10 and the second spacer 40, the end face of a side of the second spacer 40 is closed by the second lens arra 20.Therefore, although in the starting stage of bonding process, avoid the formation of bonding agent 83 stockpile alveolate close space S S thus the necessity of the phenomenon that bonding agent 83 is extruded to periphery etc. improve, but in this case, if coating zone (coating pattern) A1 has the additional pattern P A1 of the outer rim of surrounding basic pattern PA0, then also can suppress the phenomenon extruded with closing the air biased outward of space S S will formed in the mode of the lens feature 10p covering outer edge side.That is, because bonding agent 83 is prevented from around the second lens feature 13e, thus can avoid the pollution of the second optical surface 13a, the bubble of knitting layer 51 residual.

In addition, although the lens arra tectosome 200 of Figure 10 also can not carry out cutting and the optics reconstructing the compound eye imaging device of an image as the multiple images by multiple lens gained uses, but also can turn to each stacked lens (not shown) by cutting monolithic, or every multiple compound lens cuts off thus becomes the stacked lens arra of compound eye imaging device.When cutting, dicing tape is pasted by the end face at the second spacer 40, with the grid pattern corresponding with the coating of bonding agent, lens arra tectosome 100,100 ' is cut off and singualtion together with two spacers 30,40, thus obtain the duplexer of compound lens 10e, 20e.Now, dicing tape is by hemisect, and each duplexer is also bonded by dicing tape after severance.Here, line of cut creates bubble, because the bounding force of bonding part to the lens arra 10,20 that not cut adhesive tape is fixed dies down, so worry that a part for lens arra 10,20 in cut-out peels off dispersion.But, in the present embodiment, due to the pattern by forming bonding part 50 as described above, reliably bond at the periphery of duplexer, so this problem can be suppressed.In addition, although omit detailed description, but pass through according to sensor array, cut and be laminated with the lens arra tectosome 200 of sensor array 60 further thus singualtion relative to the duplexer of a pair lens arra tectosome 100,100 ', also can obtain each optical devices (not shown).

According to above explanation, the manufacture method of lens arra tectosome 100 according to the present embodiment, between the first lens feature 12e be formed on lens arra 10,20 or lens body 10a during application of adhesive 83, due to the lens feature 10p of the outer edge side in the first lens feature 12e or the outside of the lens body 10a corresponding with it, form the additional pattern P A1 of bonding agent 83, so the bonding agent 83 that can limit the periphery of the lens feature 10p at outer edge side applies extrudes towards periphery.Therefore, it is possible to prevent bonding agent 83 from more going up to the optical surface of lens feature 10p, or generation bubble particularly produces bubble on line of cut around lens feature 10p, thus can suppress the generation of unacceptable product.

(the second embodiment)

Below, the lens arra tectosome etc. of the second embodiment is described.In addition, the lens arra tectosome etc. of the second embodiment is the tectosome be out of shape by the lens arra tectosome etc. of the first embodiment, and the item be not particularly illustrated is identical with the first embodiment.

Figure 11 A is the figure of coating zone (coating pattern) A2 of the bonding agent 83 that the first lens arra 10 being coated on the lens arra tectosome forming present embodiment is described.In this case, bonding agent 83 is distributed as point-like to apply, coating zone A2 is the region adding the additional pattern P A1 that the outer rim along this basic pattern PA0 is scattered relative to the basic pattern PA0 of grid point-like surrounding whole first lens feature 12e.In above-mentioned pattern, the unit cell pattern P0 of the divergence type that the mode that basic pattern PA0 comprises to surround each first lens feature 12e or lens body 10a repeats regularly.Constituent parts pattern P 0 is included in four dotted region 83a of the corner configuration of the square centered by the first lens feature 12e.Each dotted region 83a is rounded, and its size is roughly the same.The each dotted region 83a configured around the lens feature 10q of center side becomes the region shared with the dotted region 83a of the surrounding of the first adjacent lens feature 12e.That is, observe from each the first lens feature 12e being positioned at inner side, can observe wait the pattern of width respectively rule correctly arrange, the unit cell pattern P0 of the point-like of corner repetition and formation basic pattern PA0 repeatedly.

As shown in partial enlargement in Figure 11 B, the constituent parts pattern P 0 forming the subregion RP of the periphery of basic pattern PA0 is included in four dotted region 83a, 83b of the corner configuration of the square centered by the first lens feature 12e.Around the lens feature 10p of illustrated outer edge side, be positioned at and become near three dotted region 83a of the inner side of center direction DO the region shared with the first adjacent lens feature 12e, but be positioned at and outside it, there is not the first lens feature 12e near the dotted region 83b in the outside of peripheral direction DX, do not become shared region.In addition, the dotted region 83b be positioned near the outside of peripheral direction DX is larger than the dotted region 83a diameter be positioned near the inner side of center direction DO.That is, the peripheral part of the dotted region 83b in outside becomes to form and adds the pattern elements P1 of pattern P A1, and becomes and have the shape similar with a part of unit cell pattern P0 and the region expanding the outer circumferential side of basic pattern PA0.Add pattern P A1 to become and the coating density of bonding agent 83 to be risen to the pattern higher than the situation of only unit cell pattern P0 in the more outward region of the lens feature 10p of outer edge side.

As in the present embodiment, when bonding agent 83 is coated on the coating zone A2 be made up of dotted region 83a, 83b, in the starting stage making the first spacer 30 close to the first lens arra 10, dotted region 83a, 83b are independent, do not formed and close space S S shown in Fig. 8 A, but make the first spacer 30 further close to the stage of the first lens arra 10, adjacent dotted region 83a, 83b are interconnected with one another, finally become to exist and close the such state of Fig. 8 B of space S S.

According to above explanation, the manufacture method of lens arra tectosome 100 according to the present embodiment, between the first lens feature 12e be formed on lens arra 10 or lens body 10a during application of adhesive 83, due to the lens feature 10p of the outer edge side in the first lens feature 12e or the outside of the lens body 10a corresponding with it, form the additional pattern P A1 of bonding agent 83, so the bonding agent 83 that can limit the periphery of the lens feature 10p at outer edge side applies extrudes towards periphery.Therefore, it is possible to prevent bonding agent 83 from more going up to the optical surface of lens feature 10p, or around lens feature 10p generation bubble, thus the generation of unacceptable product can be suppressed.

(the 3rd embodiment)

Below, the lens arra tectosome etc. of the 3rd embodiment is described.In addition, the lens arra tectosome etc. of the 3rd embodiment is the tectosome be out of shape by the lens arra tectosome etc. of the first embodiment, and the item be not particularly illustrated is identical with the first embodiment.

Figure 12 is the figure of coating zone (coating pattern) A3 of the bonding agent 83 that the first lens arra 10 being coated on the lens arra tectosome forming present embodiment is described.In this case, bonding agent 83 is applied to clathrate, and coating zone A3 becomes the region of the additional pattern P A1 adding the grid frame-shaped of the outer rim of surrounding this basic pattern PA0 relative to the basic pattern PA0 of the grid frame-shaped of surrounding each first lens feature 12e or compound lens 10e.Basic pattern PA0 is identical with the situation of the first embodiment, the unit cell pattern P0 that the mode comprising to surround each first lens feature 12e or lens body 10a repeats regularly.Add pattern P A1 to comprise and the pattern elements P1 that repeats of unit cell pattern P0 same rule ground, but this pattern elements P1 is formed throughout the region entirety that there is not the first lens feature 12e or lens body 10a, does not become the region of encirclement first lens feature 12e.Adding pattern P A1 by stressing multiple identical with unit cell pattern P0 pattern elements P1 outside, becoming the region expanding basic pattern PA0 at outer circumferential side continuously.By like this, make the coating pattern of bonding agent have continuity, thus the structure of additional pattern can be made simple and easy, the coating operation of bonding agent can be made simple and easy.

According to above explanation, the manufacture method of lens arra tectosome 100 according to the present embodiment, between the first lens feature 12e be formed on lens arra 10 or lens body 10a during application of adhesive 83, due to the lens feature 10p of the outer edge side in the first lens feature 12e or the outside of the lens body 10a corresponding with it, form the additional pattern P A1 of bonding agent 83, so the bonding agent 83 that can limit the periphery of the lens feature 10p at outer edge side applies extrudes towards periphery.

(the 4th embodiment)

Below, the lens arra tectosome etc. of the 4th embodiment is described.In addition, the lens arra tectosome etc. of the 4th embodiment is the tectosome be out of shape by the lens arra tectosome etc. of the first embodiment, and the item be not particularly illustrated is identical with the first embodiment.

Figure 13 is the back view that the first spacer 30 engaged with the first lens arra 10 Fig. 5 A etc. shown is described.In this case, as opening 32, the first spacer 30 has the opening 32q of center side and the opening 32p of outer edge side.

In this case, not at the first lens arra 10, but carry out their joint at the end face 31b application of adhesive 83 of the first spacer 30.The end face 31b of the first spacer 30 is except periphery, and entirety equally is covered by bonding agent 83.The coating zone A4 of result bonding agent 83 becomes the region of the additional pattern P A1 adding the outer rim of surrounding this basic pattern PA0 relative to the basic pattern PA0 surrounding each opening 32.Basic pattern PA0 is included in the unit cell pattern P0 in multiple square area of repeating regularly with the opening of the circle corresponding with opening 32.The bonding agent 83 of unit cell pattern P0 applies in the mode of the end face 31b of the surrounding of the opening 32p of the opening 32q or outer edge side that cover center side.Add pattern P A1 and become the pattern that comprise the pattern elements P1 of L-shaped different from unit cell pattern P0, and become the expansion outer circumferential side of basic pattern PA0 thus the pattern that broadens of width.That is, for the region that the peripheral direction DX of the opening 32p with outer edge side is adjacent, adding pattern P A1 becomes and coating density is risen to the pattern higher than the situation of only unit cell pattern P0.

Because the end face 31b of the first spacer 30 is smooth, so bonding agent 83 can use the methods such as screen painting to apply simply on end face 31b.

The manufacture method of lens arra tectosome 100 according to the present embodiment, between the opening 32 being formed at the first spacer 30 during application of adhesive 83, due to the outside of the opening 32p of the outer edge side in opening 32, form the additional pattern P A1 of bonding agent 83, so the bonding agent 83 that can limit the periphery of the opening 32p by being coated on outer edge side extrudes towards periphery.Therefore, it is possible to prevent bonding agent 83 generation bubble on the optical surface of lens feature 10p or around lens feature 10p, thus the generation of unacceptable product can be suppressed.Particularly by improve the resistance of the part of the bonding agent of coating density, the phenomenon that the bonding agent of the periphery of the lens body by being coated on outer edge side extrudes towards periphery reliably can be suppressed.In addition, the peripheral adhesive of the lens body of outer edge side can be made abundant, the effect suppressing bubble to produce can be improved.

(the 5th embodiment)

Below, the lens arra tectosome etc. of the 5th embodiment is described.In addition, the lens arra tectosome etc. of the 5th embodiment is that the item be not particularly illustrated is identical with first embodiment etc. by first and the 3rd tectosome of being out of shape of the lens arra tectosome etc. of embodiment.

Figure 14 A is the vertical view of the first lens arra 10 that the lens arra tectosome forming present embodiment is described.In this case, standard Virtual lens (ダ ミ ー レ Application ズ) 10r and distortion virtual lens 10s is possessed in the outside of the lens feature 10p of outer edge side.Standard Virtual lens 10r more in the inner part, and has the shape identical with compound lens 10e.Distortion virtual lens 10s is positioned at outer most edge, and has and the elliptical shape of not rounded less than compound lens 10e.By making multiple virtual lens at least partially, narrower than lens body occupied area, easily improve the density of virtual lens.In addition, virtual lens 10r, 10s can have convex and recessed arbitrary shape, and do not need to make surface become optical surface.

Figure 14 B is the back view be described the first spacer 30 engaged with first lens arra 10 of Figure 14 A.In this case, as opening 32, the first spacer 30 has the opening 32q of center side and the opening 32p of outer edge side.Further, the first spacer 30 possesses the false opening 32r of standard and the false opening 32s of distortion in the outside of the opening 32p of outer edge side.The false opening 32r of standard more in the inner part, and has the shape identical with opening 32.Be out of shape false opening 32s and be positioned at outer most edge, and there is elliptical shape that is less than opening 32 and not rounded.When aligning first spacer 30 engages with the first lens arra 10, the false opening 32r of standard configures in the mode of taking turns Guo consistent accordingly with standard Virtual lens 10r, is out of shape false opening 32s and configures in the mode of taking turns Guo consistent accordingly with distortion virtual lens 10s.By making the narrower than opening 32p occupied area at least partially of multiple false opening, easily improve the density of false opening.

Coating zone (coating pattern) A5 being coated on the bonding agent 83 of the first lens arra 10 becomes the region of the additional pattern P A1 adding the grid frame-shaped of the outer rim of surrounding this basic pattern PA0 relative to the basic pattern PA0 of the grid frame-shaped of surrounding each first lens feature 12e.Basic pattern PA0 with first and the 3rd the situation of embodiment identical, the unit cell pattern P0 that the mode comprising to surround each first lens feature 12e or lens body 10a repeats regularly.Add pattern P A1 and comprise the pattern elements P3 of the unit cell pattern P0 that regularly repeat identical with basic pattern PA0 and filling outer rim as pattern elements P1.The basic pattern PA0 forming pattern elements P1 is formed in the mode of surrounding standard Virtual lens 10r, and the pattern elements P3 forming pattern elements P1 is formed in the mode of surrounding distortion virtual lens 10s.That is, add pattern P A1 to become and stress the multiple pattern elements P1 identical with unit cell pattern P0 outside by identical with the situation of the 3rd embodiment and fill the pattern elements P3 be out of shape by unit cell pattern P0 thus the pattern expanded to outer peripheral side by basic pattern PA0 in outer most edge.Result adds compared with situation that pattern P A1 becomes with only unit cell pattern P0 and only the part of outer most edge is improved the pattern applying density.

According to above explanation, the manufacture method of lens arra tectosome 100 according to the present embodiment, between the first lens feature 12e be formed on lens arra 10 or lens body 10a during application of adhesive 83, due to the lens feature 10p of the outer edge side in the first lens feature 12e or the outside of the lens body 10a corresponding with it, form the additional pattern P A1 of bonding agent 83, so the bonding agent 83 that can limit the periphery of the lens feature 10p by being coated on outer edge side extrudes towards periphery.

When the manufacture method of present embodiment, the closed region ST1 of basic pattern PA0 and the closed region ST2 of additional pattern P A1 when make the first lens arra 10 and the first spacer 30 close to, formed respectively and close space S S.Now, by fully increasing the quantity of closed region ST2, the effect of the flowing of the bonding agent 83 suppressed when pasting can be had.Namely, by adjusting configuration, the density of closed region ST2, can around the lens feature 10p of the outer edge side of basic pattern PA0 close space S S and the surrounding of standard Virtual lens 10r that is adjacent close in space S S, make inner air pressure roughly become identical.Or, the surrounding of standard Virtual lens 10r close air pressure in space S S can than the surrounding of lens feature 10p close air pressure in space S S a little low close to atmospheric pressure.Thereby, it is possible to more effectively prevent the phenomenon extruded to peripheral direction by the bonding agent 83 of lens feature 10p periphery.

In addition, in the manufacture method of the lens arra tectosome 100 of present embodiment, in the additional pattern P A1 in outside being formed at basic pattern PA0, become the initial closed region ST2 closing space S S and become the region that size or shape change because of position.Thereby, it is possible to closed region ST2 is formed multiple at less area.

In addition, when by adding pattern P A1 and forming the difform closed region ST2 with the closed region ST1 of basic pattern PA0, preferably use for benchmark, configuration, shape are changed with lens feature 10p distortion virtual lens 10s, to use with opening 32 be the distortion vacation opening 32s that configuration, shape change by benchmark.Namely, use distortion virtual lens 10s, be out of shape false opening 32s from the viewpoint of closing the air pressure inside of space S S of the air pressure inside of closing space S S close to basic pattern PA0 making additional pattern P A1, namely from preventing the viewpoint of the phenomenon extruded to peripheral direction by bonding agent 83 from being preferred.

(the 6th embodiment)

Below, the lens arra tectosome etc. of the 6th embodiment is described.In addition, the lens arra tectosome etc. of the 6th embodiment is the tectosome be out of shape by the lens arra tectosome etc. of first, second and the 5th embodiment, and the item be not particularly illustrated is identical with first embodiment etc.

Figure 15 A is the vertical view of the first lens arra 10 that the lens arra tectosome forming present embodiment is described, Figure 15 B is the back view that the first spacer 30 engaged with first lens arra 10 of Figure 15 A is described.In this case, identical with the 5th embodiment, there are standard Virtual lens 10r and distortion virtual lens 10s in the arranged outside of the first lens feature 12e of the first lens arra 10.In addition, the false opening 32r of standard and the false opening 32s of distortion is had in the arranged outside of the opening 32 of the first spacer 30.

The figure of coating zone (coating pattern) A6 of the bonding agent 83 that the first lens arra 10 being coated on the lens arra tectosome forming present embodiment is described.In this case, bonding agent 83 is discrete is the coating of point-like ground, and coating zone A6 becomes the region of the additional pattern P A1 adding the outer rim of surrounding this basic pattern PA0 relative to the basic pattern PA0 of the grid frame-shaped of surrounding whole first lens feature 12e.Add the pattern that pattern P A1 is equivalent to pattern suitable for a part of the unit cell pattern P0 with basic pattern PA0 or a part to be out of shape.Add pattern P A1 be included in the same size that the grid point identical with the dotted region 83a of unit cell pattern P0 configures pattern elements P1, with from the undersized pattern elements P2 of the grid point offset configuration of dotted region 83a.

The manufacture method of lens arra tectosome 100 according to the present embodiment, between the first lens feature 12e be formed on lens arra 10 or lens body 10a during application of adhesive 83, due to the lens feature 10p of the outer edge side in the first lens feature 12e or the outside of the lens body 10a corresponding with it, form the additional pattern P A1 of bonding agent 83, so the bonding agent 83 that can limit the periphery of the lens feature 10p by being coated on outer edge side extrudes towards periphery.Therefore, it is possible to prevent bonding agent 83 generation bubble on the optical surface of lens feature 10p or around lens feature 10p, thus the generation of unacceptable product can be suppressed.

(the 7th embodiment)

Below, the lens arra tectosome etc. of the 7th embodiment is described.In addition, the lens arra tectosome etc. of the 7th embodiment is that the item be not particularly illustrated is identical with first embodiment etc. by first and the 5th tectosome of being out of shape of the lens arra tectosome etc. of embodiment.

Figure 16 A is the vertical view of the first lens arra 10 that the lens arra tectosome forming present embodiment is described.In this case, identical with the situation of the 5th embodiment, standard Virtual lens 10r and distortion virtual lens 10s is possessed in the outside of the lens feature 10p of the outer edge side of the first lens arra 10.

Figure 16 B is the back view be described the first spacer 30 engaged with first lens arra 10 of Figure 16 A.In this case, identical with the situation of the 5th embodiment, the false opening 32r of standard and the false opening 32s of distortion is possessed in the outside of the opening 32p of the outer edge side of the first spacer 30.

In this case, be not at the first lens arra 10 but the first spacer 30 end face 31b application of adhesive 83 thus carry out their joint.The end face 31b entirety of the first spacer 30 equally is covered by bonding agent 83.The coating zone A7 of result bonding agent 83 becomes the region of the additional pattern P A1 adding the outer rim of surrounding this basic pattern PA0 relative to the basic pattern PA0 surrounding each opening 32.Basic pattern PA0 is included in the unit cell pattern P0 in multiple square area of repeating regularly with the opening of the circle corresponding with opening 32.The bonding agent 83 of unit cell pattern P0 applies in the mode of the end face 31b of the surrounding of the opening 32p of the opening 32q or outer edge side that cover center side.Add pattern P A1 and become the pattern comprising the pattern elements P1 different from unit cell pattern P0.Although pattern elements P1 has the shape identical or similar with a part of unit cell pattern P0, but correct is has and the false opening 32r of standard or be out of shape the opening of circle corresponding to false opening 32s or ellipse, and apply in the mode of end face 31b of the false opening 32r of coverage criteria or the surrounding that is out of shape false opening 32s.That is, add pattern P A1 to become in the region adjoined at the peripheral direction DX of the opening 32p with outer edge side and rise to the pattern higher than the situation of only unit cell pattern P0 by applying density.

Because the end face 31b of the first spacer 30 is smooth, so bonding agent 83 can use the methods such as screen painting to be coated on simply on end face 31b.

The manufacture method of lens arra tectosome 100 according to the present embodiment, between the opening 32 being formed at the first spacer 30 during application of adhesive 83, due to the outside of the opening 32p of the outer edge side in opening 32, form the additional pattern P A1 of bonding agent 83, so the bonding agent 83 that can limit the periphery of the opening 32p by being coated on outer edge side extrudes towards periphery.Therefore, it is possible to prevent bonding agent 83 generation bubble on the optical surface of lens feature 10p or around lens feature 10p, thus the generation of unacceptable product can be suppressed.

In addition, according to the manufacture method of said lens array structure body 100, in the first lens arra 10, and the outside of the lens feature 10p of outer edge side in the first lens feature 12e, be formed with virtual lens 10r, 10s.Therefore, easily make the coating zone of bonding agent 83 (coating pattern) A7 have a kind of continuity, easily formed at the periphery of the lens feature 10p of outer edge side in the bonding process for engaging and close space S S.

Below, the embodiment bad to the optics that can more effectively prevent from being caused by the bonding agent for stationary partition, is described in detail.

(the 8th embodiment)

Below, the lens arra tectosome etc. of the 8th embodiment is described.In addition, the lens arra tectosome etc. of the 8th embodiment is the tectosome be out of shape by the lens arra tectosome etc. of the first and second embodiment, and the item be not particularly illustrated is identical with first embodiment etc.

A) lens arra tectosome (the lens arra tectosome as the duplexer of lens arra)

As shown in Figure 17 A and Figure 17 B, the lens arra tectosome 100 of present embodiment is by making the first lens arra 10 and the first spacer 30 bond thus stacked duplexer via bonding part 50.

Lens arra tectosome 200 shown in Figure 17 C is folded thus the tectosome obtained by the shown compound stratums such as lens arra tectosome 100 grade such as Figure 17 A.Lens arra tectosome 200 has the first lens arra 10, first spacer 30, second lens arra 20, second spacer 40 and sensor array 60.

In addition, although the lens arra tectosome 200 of Figure 17 C also can not carry out cutting and the optics reconstructing the compound eye imaging device of an image as the multiple images by multiple lens gained uses, but also can turn to each stacked lens (double dot dash line with reference to Figure 17 A) by cutting monolithic, thus become the optical devices 300 comprising single lens when top view as shown in Figure 18.In addition, also can cut off thus become the stacked lens arra of compound eye imaging device by every multiple lens.The optical devices 300 or optics of compound eye imaging device and the optical devices that combine of shooting sensor array such as can be arranged at mobile terminal thus play function as the camera module etc. that can take.

As shown in Figure 19 A, in a compound lens 10e of formation first lens arra 10, the first lens feature 12e has the first optical surface 12a.The projection 15 of ring-type is formed around each first optical surface 12a.Projection 15, such as when the first resin bed 12 shaping, is formed by the resin overflowed from the transfer surface of the shaping first optical surface 12a in transfer mold.Projection 15 is not the part with optical function, but when fixing the first spacer 30 by bonding part 50, prevents the part that the bonding agent before solidifying overflows in the opening 32 of the first spacer 30.

Second lens feature 13e has the second optical surface 13a.The projection 15 of ring-type is formed around each second optical surface 13a.Projection 15, such as when the second resin bed 13 shaping, is formed by the resin overflowed from the transfer surface of the shaping second optical surface 13a in transfer mold.Projection 15 is identical with the projection formed around the first lens feature (lens section) 12e, is not the part with optical function, but prevents the part that fixing bonding agent overflows in the opening 42 of the second spacer 40.The projection 15 of the second lens feature 13e side also can be omitted when the second lens feature 13e is positioned at and exposes side and do not arrange spacer around.

The spacer main body 31 of the first spacer 30 is the parts being sandwiched in a pair smooth stratiform between end face 30t, 30u.Spacer main body 31 has the first conical surface 31a of ring-type and the second conical surface 31b of ring-type in the mode adjacent with opening 32.Wherein, the first close with the first lens arra 10 conical surface 31a configures in the mode opposed with the projection 15 formed around the first lens feature (lens section) 12e.

Bonding part 50 possesses: knitting layer 51, between its real estate 11a being sandwiched in the first lens arra 10 and the end face 30u of spacer main body 31; And protrusion 52, it stretches out a little from knitting layer 51 peripherad opening 32 side.Knitting layer 51 is layers of the bonding agent roughly with same thickness.Protrusion 52 is the bonding agents of filling in the space being sandwiched in the wedge shape between the first conical surface 31a of the first spacer 30 and the projection 15 of the first lens feature (lens section) 12e.Protrusion 52 is formed as irregular shape.The irregular shape of protrusion 52 because of the deviation of the size of the diameter of the opening 32 of the first spacer 30, the first spacer 30 relative to the position skew of the first lens arra 10 or the deviation of sendout, the wettability of the surface of substrate 11 degree and produce.

As shown in Figure 19 B, the projection 15 of dykes and dams shape formation thus integrated with the first lens feature 12e around the first lens feature 12e of the first lens arra 10.The projection 15 of dykes and dams shape has top 15a, the inclined-plane 15b in outside and the inclined-plane 15c of inner side.Projection 15 is parts of mountain, the outer ring shape of encirclement first lens feature 12e, when being engaged with the first lens arra 10 by the first spacer 30, prevent the bonding agent extruded towards periphery from spacer main body 31 from stretching out in the first optical surface 12a more than the border F of the first lens feature 12e.Result forms the groove portion 16 of ring-type or caldera shape in the inner side of projection 15.

Here, the height T1 of the projection 15 of dykes and dams shape is higher than the thickness T2 of knitting layer (adhesive phase) 51.That is, with from real estate 11a to the height T1 that the distance of the top 15a of projection 15 is suitable become with from real estate 11a to more than the thickness T2 that the distance of the end face 30u of spacer main body 31 is suitable.By the height T1 of projection 15 being increased to more than the thickness T2 of knitting layer 51, reliably can realizing projection 15 and stoping the intrusion of bonding agent and resin to prevent function.When thickness T2 is 20 μm ~ 80 μm and spacer width W1 (with reference to Figure 17 B) is 500 μm ~ 800 μm, the height being specifically of a size of 50 μm ~ about 100 μm of the projection 15 of dykes and dams shape, and be the transverse width of 100 μm ~ about 200 μm.

Be back to Figure 17 C, the second lens arra 20 is the other lenses arrays with the structure identical with the first lens arra 10.In the second lens arra 20, around the optical surface of lens body 20a, be formed with the projection 15 of dykes and dams shape.The projection 15 of dykes and dams shape is such as shaping in the lump with the first lens feature 12e thus integrated with the first lens feature 12e by transfer printing.The projection 15 being arranged at the second lens arra 20 is of similar shape with the projection 15 being arranged at the first lens arra 10 and has the part that identical resin prevents function, omits detailed description.

Second spacer 40 has opening 42 accordingly with each compound lens 20e forming the second lens arra 20.Second spacer 40 engages with the second lens arra 20 with the state of aiming at relative to each compound lens 20e of formation second lens arra 20.Because the second spacer 40 has identical structure with the first spacer 30, so omit detailed description.

Second lens arra 20 and the second spacer 40 are engaged by bonding part 50 and stacked.Now, prevented the bonding agent that extrudes towards periphery from the second spacer 40 from stretching out to the optical surface of the first lens feature 22e by the projection 15 of dykes and dams shape.

Second spacer 40 engages with the first lens arra 10 via bonding part 50.First spacer 30 engages with sensor array 60 via bonding part 50.

In the optical devices 300 shown in Figure 18, the substrate portion 11e be sandwiched between the first lens feature 12e of compound lens 10e side and the second lens feature 13e is the part cut out from shown substrates 11 such as Figure 17 C.In addition, the spacer part 331 configured around the first lens feature 12e is the parts cut out from the first spacer 30.Similarly, the substrate portion 21e be sandwiched between the first lens feature 22e of compound lens 20e side and the second lens feature 23e is the part cut out from shown substrates 21 such as Figure 17 C.In addition, the spacer part 341 configured around the first lens feature 22e is the parts cut out from the second spacer 40.At compound lens 10e, between spacer part 331 and sensor part 361, bonding part 350 exists to keep the airtight mode of internal space S 1, at compound lens 10e, between spacer part 341 and compound lens 20e, bonding part 350 exists to keep the airtight mode of internal space S 2.

In the present embodiment, as the host of bonding agent 83, also (1) that describes in the first embodiment can be used at the epoxy compound of normal temperature solid, be more preferably the epoxy compound that (2) can be used to have the molecular configuration in repetitive with aromatic rings.

The bonding agent 83 of embodiment becomes butyraceous semi-fluid mass near room temperature, and reducing at the comparison high temperature viscosities of 50 DEG C ~ 80 DEG C becomes liquid.Therefore, easily by this bonding agent 83, by divider etc., dripping as drop, such as, when separately supplying bonding agent in multiple grid point, extremely can improve processing power.On the other hand, if temporarily dripped on the opticses such as the first lens arra 10, first spacer 30 by bonding agent 83, then bonding agent 83 is cooled to rapidly room temperature degree thus viscosity sharply rises.Thus, when make a pair optics of the first lens arra 10, first spacer 30 etc. close to thus expansion exist in their gap bonding agent 83, bonding agent 83 excess flow can be prevented thus formed pollute optical surface around etc. do not wish bubble.

Here, the advantage of following method is described, the method is make bonding agent 83 drip on the optics of object as drop, and make bonding agent 83 cool on optics thus be sandwiched between optics with the state that improve viscosity to spread out, make bonding agent 83 fully throughout with regelate.First, if the viscosity of bonding agent when spreading out after dripping 83 is moderately low, then can makes the generation of the closed region impaled by bonding agent 83 becoming bubble producing cause, postpone relative to the carrying out of lamination process.That is, regardless of the lens feature number in lens arra, all via the space between dripping a little, air can be discharged to lens arra periphery efficiently between optics.In addition, in the method, can so that lens feature be arranged in premised in grid point, will drip counts suppresses for being roughly 1 point relative to a lens feature, can suppress the increase of the bat that drips of the shortcoming as divider.About the joint of the first lens arra 10 and the first spacer 30, when premised on the projection 15 being formed with dykes and dams shape around the first lens feature 12e, precision required by the amount of dripping is when the thickness of 83 layers, bonding agent is 40 μm, and often is about 0.3mg ± 5% (average emitted 100 times) left and right.This easily can be realized by general air distributor.In addition, when put drip, because the amount of dripping is concentrated at 1, so the gap with workpiece widely can be obtained, and drip, so positional precision also can improve in the face of the nozzle that drips due to the flat site that the area between lens feature is the widest.Result can reduce the movable axis permissible accuracy to carrying divider, thus can reduce installation cost.In addition, said method, regardless of the size of the ranks number of the lens feature in lens arra, all can be applied, thus can enjoy advantages such as suppressing bubble generation with keeping intact.

B) manufacture method of lens arra tectosome

With reference to Fig. 2 A etc., the manufacturing process of the lens arra tectosome 100 shown in Figure 17 B etc. is described.

First, the first lens arra 10 (step S11) is prepared by manufacturing the first lens arra 10.The summary of the manufacturing process of the first lens arra 10 as shown in Figure 2 B.

As shown in Figure 20 A and Figure 20 B, make the transfer mold 72 (step S21) of the first resin bed 12 grade for the formation of the first lens arra 10 in advance.In the periphery of transfer section 72a, be closely formed with the jut 72p of ring-type with it.The jut 72p of ring-type, when the first resin bed 12 described later shaping, becomes the part of the projection 15 for forming ring-type around the first lens feature 12e.

Above, although be illustrated the transfer mold 72 of the first resin bed 12 of the first lens arra 10, the transfer mold (not shown) of the second resin bed 13 is made too, and only the shape of transfer surface 71b is different.

Next, as shown in Figure 20 C and Figure 20 D, form the first resin bed 12 (step S23) of the first lens arra 10.Around the first lens feature 12e, the outer rim along the first lens feature 12e is formed with the projection 15 of ring-type.A part for resin 82 before this solidification is overflowed and is formed around transfer section 72a.That is, separately will to be supplied between substrate 11 and transfer mold 72 thus to become the quantity delivered of the lens resin material of lens section, adjusting in the mode exceeding the amount required for the optical surface forming lens section, thus be formed with projection 15.In this case, the mode that can have a lens section of optical surface with expansion forms the projection 15 of dykes and dams shape, thus the formation of the projection 15 of dykes and dams shape is easy.In addition, by the projection 15 utilizing transfer mold 72 and lens section to form dykes and dams shape, the relative position relative to lens section can suitably be set.Thereby, it is possible to make the expansion of bonding agent reliably stop by dykes and dams structure.

As shown in Figure 22 A amplification, in the resin 82 dripped, although the resin portion 82a overflowed to the surrounding of transfer section 72a is subject to the impact of gravity, also become the real estate 11a that the reflects substrate 11 mould surface 72s relative to the wetting state of resin 82, transfer mold 72 relative to the shape of the wetting state of resin 82.That is, the waterproof angle α at the angle as resin portion 82a and real estate 11a being is determined by the wetting state of the real estate 11a of substrate 11.Waterproof angle β as resin portion 82a and the 72s angle that is, mould surface is determined by the wetting state of the mould surface 72s of transfer mold 72.Therefore, by selection and the combination of the material of substrate 11, the material of the transfer printing layer 74 of transfer mold 72 and the material of resin 82, waterproof angle α, β can be adjusted.The shape of result resin portion 82a and the shape of projection 15 also can be adjusted to roughly target shape with repeatability to a certain degree.Here, the height T1 of projection 15, as illustrated in Figure 19 B, becomes more than the thickness T2 of the knitting layer 51 of greatly bonding part 50.The shape (the height T1 of projection 15, waterproof angle α, β) of projection 15 is important when the first spacer 30 being fixed on the first lens arra 10.

In addition, the projection 15 of ring-type is not limited to overflowed by the resin 82 before make solidification around the transfer section 72a of transfer mold 72 thus formed, and can be formed by various method.Such as, as shown in Figure 22 B, there is by making the transfer section 72a of transfer mold 72 be accompanied with the additional transfer section 72r of the ring-type of the transfer surface 72q (expansion transfer surface) corresponding with the shape of projection 15, projection 15 can be formed forcibly.In this case, the shape of projection 15 can be formed according to comparison object by adding transfer section 72r.That is, make the shape of projection 15 accurate, thus can more reliably and critically carry out the prevention (resin prevention) of resin.

Next, as shown in Figure 20 E, form the second resin bed 13 (step S24) of the first lens arra 10.Second resin bed 13 is formed with the method identical with the first resin bed 12.

Being back to Fig. 2 A, preparing the first spacer 30 (step S12) by manufacturing the first spacer 30.

Next, as illustrated in fig. 21, supply bonding agent 83 (step S13) on the real estate 11a of the substrate 11 of the first lens arra 10 obtained to the operation by step S11.In the present embodiment, the exposing surface (carrying plane 11f) not being formed with the first lens feature 12e in the real estate 11a of substrate 11, and at the coating zone A2 such as described in this second embodiment (with reference to Figure 11 A etc.), by the application of adhesive 83 such as to drip from discharge nozzle.Specifically, as shown in fig. 23 a, at carrying plane 11f, and the region between adjacent multiple lens feature, be that the intermediate point C1 (being equivalent to basic pattern PO) impaled at four the first lens feature 12e drips bonding agent 83 more aptly.Divider 91 driven part 92 drives and dimensionally moves, and moves to as above the intermediate point C1 of target, drips carried out temperature controlled liquid bonding agent 83 by drive division 92 from nozzle end 91a.Become liquid by the temperature adjusting bonding agent 83, the processing speed of dripping of bonding agent 83 can be improved, ground application of adhesive 83 can be expanded to the central area C2 of the periphery of intermediate point C1.The amount of dripping of bonding agent 83 becomes, and is filled by bonding agent 83 completely in the space be sandwiched between the real estate 11a of the first lens arra 10 and end face 30u of spacer main body 31 and bonding agent 83 amount of overflowing a little towards periphery from this space when having been undertaken by the first spacer 30 pressing.Thus, with the end face 30u from the first spacer 30, bonding part 50 is set with the mode that the opposed region of the first lens arra 10 is stretched out.In addition, although it is best not overflow bonding agent 83 from above-mentioned space ideally, by overflowing a little, even if the deviation that there is the amount of dripping also can avoid the formation of the region do not bonded.

Then, be on the real estate 11a of the first lens arra 10 in the stable stage in the state of bonding agent 83, as illustrated in fig. 21b, the first spacer 30 operation by step S13 obtained critically is aimed at and is configured at the top of the substrate 11 of the first lens arra 10, real estate 11a towards substrate 11 is pressed into predetermined distance, and make it gently close, thus the bonding agent 83 on substrate 11 equally is expanded thus fills gap (step S14).The moment that first spacer 30 is declined is after the bonding agent 83 dripped in step s 13 drops to room temperature (such as 25 DEG C).Thus, bonding agent 83 has the viscosity of appropriateness, can suppress to form undesirable closed region at the periphery of the first lens feature 12e.

Figure 23 B and Figure 23 C is the figure of the diffusion that bonding agent 83 is described.In the state of Figure 23 B, the first spacer 30 is quite close with substrate 11, and at the wheel Guo Zengjia of the bonding agent 83 that the periphery of central area C2 is assembled, a part arrives near the first lens feature 12e.But the first lens feature 12e is impaled by the projection 15 of dykes and dams shape, bonding agent 83 is prevented to arrive the first optical surface 12a.In the state of Figure 23 C, the first spacer 30 approaches to dbjective state with substrate 11, and the gap of the real estate 11a of the first lens arra 10 and the end face 30u of spacer main body 31 becomes suitable state.In a state in which, the wheel Guo of bonding agent 83 is increased to greatest extent, becomes the state of gap-fill at the Zone Full except the first lens feature 12e.That is, be formed in the position of each first lens feature 12e and close space.In this case, although form closed region at the periphery of the first lens feature 12e, because of the existence of the projection 15 of dykes and dams shape, bonding agent 83 is stoped to arrive the first optical surface 12a.In addition, because identical reason, avoid residual bubble in knitting layer 51.

Finally, from the real estate 11b side irradiation ultraviolet radiation at the back side of substrate 11, the bonding agent 83 be sandwiched between the first lens arra 10 and the first spacer 30 is made to be solidified into bonding part 50 (step S15).Bonding part 50 becomes the part with the protrusion 52 stretched out from knitting layer 51 peripherad opening 32 side be sandwiched between real estate 11a and spacer main body 31.Then, by removing suction jig 94a, complete lens arra tectosome 100 (with reference to Figure 21 C).

Figure 24 A ~ Figure 24 C is the figure of the situation that the projection 15 not having dykes and dams shape is described conceptually.In above-mentioned figure, Figure 24 B represents the compound lens 10e of the middle section in lens arra tectosome 100, and bonding agent 83 does not arrive the first optical surface 12a ground and surrounds the first resin bed 12 roughly in the same way around.But, be formed with the bubble 87 that any is positioned at the non-fill area of bonding agent 83.On the other hand, Figure 24 A and Figure 24 C represents the compound lens 10e of the neighboring area in lens arra tectosome 100.Due to the periphery of the compound lens 10e in neighboring area, the upside of the first spacer 30 is closed by suction jig 94a etc., because the formation of closing space produces the trend extruded to periphery by the bonding agent 83 from central authorities, so a part for bonding agent 83 arrives the first optical surface 12a, around the first lens feature 12e, be formed with bubble 87.

Above, the lens arra tectosome 100 by a side the first lens arra 10, engage with the second spacer 40 of the lens arra tectosome 100 ' of the opposing party time, be fixed with other the second lens arra 20 in advance relative to the second spacer 40.In this case, when the joint of the first lens arra 10 and the second spacer 40, the end face of a side of the second spacer 40 is closed by the second lens arra 20.Therefore, although avoid stockpiling alveolate closed region at bonding agent 83 to be formed in early days thus raising such as the necessity of the phenomenon that bonding agent 83 is extruded to periphery etc., but in this case, because bonding agent 83 has the viscosity of appropriateness, and the projection 15 of dykes and dams shape is set around the second lens feature 13e, thus bonding agent 83 is stopped in around the second lens feature 13e, thus can avoid the pollution of the second optical surface 13a, the bubble of knitting layer 51 residual.

In the above description, although to drip bonding agent 83 to the real estate 11a of the first lens arra 10, also can make to reverse up and down and drip bonding agent 83 at the end face 30u of the first spacer 30.In this case, the end face 30u of the first spacer 30 is smooth, and bonding agent 83 can by flatly coating or supplies on end face 30u such as screen paintings.In addition, drip in operation at bonding agent, also can be applied in the coating pattern of the bonding agent 83 described in first embodiment etc.

In the lens arra tectosome 100 of the present embodiment be explained above, the first lens arra 10 has the projection 15 of the dykes and dams shape of the surrounding of the first optical surface 12a on the real estate 11a of encirclement one side.Thus, when the first lens arra 10 and the first spacer 30 stacked, even if there is deviation in other sizes of the precision of the amount of dripping of bonding agent 83, the thickness of the first spacer 30, also the projection 15 extending through dykes and dams shape of bonding agent 83 i.e. dykes and dams structure can be made to stop, thus can prevent bonding agent 83 from invading to the first optical surface 12a.Above situation is also set up when being engaged with the second spacer 40 by the first lens arra 10.

(embodiment)

Below, specific embodiment is described.As bonding agent 83, prepare with the bisphenol A type epoxy resin material of normal temperature solid be principal ingredient bonding agent and test portion 1 ~ 3.The viscosity of test portion 1 is 7200CP, and thixotropic ratio is 1.11, and the viscosity of test portion 2 is 6800CP, and thixotropy is 1.06, and the viscosity of test portion 3 is 8700CP, and thixotropy is 1.07.In addition, for test portion 1 ~ 3, viscosity, thixotropic ratio are with the sequential determination of following (1) and (2).In addition, the wetting states before the bond strength after solidification, solidification etc. are with the sequential determination of following (3) and (4).

(1) mensuration of viscosity

Use E type viscosity meter (trade name: VISCOMETER TV-22, TOKI SANGYOCO.LTD Inc., uses rotor: design temperature: 25 DEG C), the viscosity of the rotating speed 20rpm of each test portion 1 ~ 5 is measured.

(2) mensuration of thixotroping value

Thixotropic ratio Ti (10/20) is calculated divided by the viscosity meter carried out with 20rpm when measuring by the viscosity using E type viscosity meter to carry out when measuring with 10rpm at 25 DEG C.

(3) mensuration (taking out test) of bond strength

Use to bond scope the thick 60 μm of test sample books that two sliding glass bondings with the cleaned surface of organic solvent wiping are obtained of bonding agent, by digital force gauge (trade name: ZP-200N CO.IMADA, speed: 30mm/min), tensile adhesion strength is measured.

(4) the wetting state test before solidification

In the sliding glass through UV ozone clean, the bonding agent of 0.30mg ± 10% is dripped with point, with microscope, the change (drip after 1h after, 12h after) of external diameter along with the time is observed.The metewand of observations is: external diameter along with the situation of the deficient change 3% of time be "○", more than 3% situation less than 5% is " △ ", and the situation of more than 5% is "×".

Consequently, test portion 1 ~ 3 all shows the good bond strength of more than 0.4MPa, and the result of wetting state test is: test portion 1,3 is zero, and test portion 2 is △, no problem all in practical.In test portion 1 ~ 3, the operation of test portion 1,3 is especially easy, and heat (40 DEG C) during by dripping, viscosity reduces and suppresses wire drawing thus processing ease.Further, after dripping, be back to normal temperature rapidly, viscosity increases, so shape easily maintains.By using test portion 1 ~ 3, when the joint of spacer, the generation of bubble can be prevented and can suitably fill and bond.

(the 9th embodiment)

Below, the lens arra tectosome etc. of the 9th embodiment is described.In addition, the lens arra tectosome etc. of the 9th embodiment is the tectosome be out of shape by the lens arra tectosome etc. of the 8th embodiment, and the item be not particularly illustrated is identical with the 8th embodiment.

Figure 25 A represents the transfer mold 272 of the first lens arra 10 for making the lens arra tectosome forming present embodiment.This transfer mold 272 becomes the transfer mold being provided with dual jut 72p, 272p at transfer printing layer 74.That is, transfer mold 272 has multilayer jut 72p, 272p with ring-type in the direction vertical with circumference.When using this transfer mold 272 to manufacture first lens arra 10, when the first resin bed 12 shaping, by the resin portion of filling between jut 72p, 272p at transfer section 72a and the resin portion of overflowing around jut 272p, formation projection 15,215 around the first lens feature 12e.Here, even if how many quantity delivereds of resin 82 has difference, also because jut 72p, 272p become 2 sections, so at least reliably form the projection 15 of inner side.

Figure 25 B illustrates the fixing figure of the first spacer 30 relative to first lens arra 10 of Figure 25 A.Also known according to figure, although bonding agent 83 is to fill to raised 15,215 modes more gone up, suppress bonding agent 83 to cross the projection 215 in outside, reliably prevent bonding agent 83 from crossing the projection 15 of inner side.

(the tenth embodiment)

Below, the lens arra tectosome etc. of the tenth embodiment is described.In addition, the lens arra tectosome etc. of the tenth embodiment is the tectosome be out of shape by the lens arra tectosome etc. of the 8th embodiment, and the item be not particularly illustrated is identical with the 8th embodiment.

Figure 26 A represents the transfer mold 372 of the first lens arra 10 for making the lens arra tectosome forming present embodiment.This transfer mold 372 becomes the transfer mold being provided with triple jut 72p, 272p, 372p at transfer printing layer 74.That is, transfer mold 372 has multilayer jut 72p, 272p, 372p with ring-type in the direction vertical with circumference.When using this transfer mold 372 to manufacture first lens arra 10, when the first resin bed 12 shaping, by in the resin portion of filling between jut 72p, 272p, 372p of transfer section 72a and the resin portion of overflowing around projection 372p, form projection 15,215,315.Here, even if how many quantity delivereds of resin 82 has difference, also because jut 72p, 272p, 372p become 3 sections, at least reliably form the projection 15,215 of inner side.

Figure 26 B illustrates the fixing figure of the first spacer 30 relative to first lens arra 10 of Figure 26 A.From figure also, although bonding agent 83 is filled in the mode of crossing or getting over upper process 15,215, suppress bonding agent 83 to cross the projection 215,315 in outside, reliably prevent bonding agent 83 from crossing the projection 15 of inner side.

(other)

Above, although be illustrated the manufacture method etc. of the lens arra of present embodiment, the manufacture method of lens arra of the present invention is not limited to above-mentioned.Such as, also can be formed relative to the first lens arra 10 at the coating pattern of the bonding agent 83 of the first spacer 30 formation, also can be formed relative to the first spacer 30 at the coating pattern of the bonding agent 83 of the first lens arra 10 formation.

In addition, be not only defined in only at the coating pattern of a square composite adhesives 83 of the first lens arra 10 and the first spacer 30, coating pattern can be formed at the first lens arra 10 and the first spacer 30 both sides.Now, although also identical coating pattern can be formed at the first lens arra 10 with the first spacer 30, different coating patterns can also be formed.When the first lens arra 10 forms different coating patterns from the first spacer 30, can by the coating pattern formed at the first lens arra 10, synthesize with the coating pattern formed at the first spacer 30, complete Fig. 7,11A, 12,13, the shown coating pattern such as 14A, 15A, 16B.

First lens arra 10 is not limited to be provided with the first resin bed 12 and the second resin bed 13 in the both sides of substrate 11, the one-sided of substrate 11 can be provided with single resin bed.Further, the first lens arra 10 can be formed by glass, resin, other single materials.Such as, can be by by by injection-molded for molten resin shaping and plastics lens arra that the one thing of resin that is that obtain is formed, also can be the glass lens arra be made up of the one thing passing through glass melten glass impact briquetting obtained.

Above, although be mainly illustrated the joint of the first lens arra 10 and the first spacer 30 that form lens arra tectosome 100, but the coating pattern of the bonding agent 83 of the second to the 7th embodiment etc., for the joint of the second lens arra 20 and the second spacer 40 that form lens arra tectosome 100 ', can be applied too.Further, for the joint of the first lens arra 10 and the second spacer 40, the coating pattern of the bonding agent 83 of the second to the 7th embodiment etc. can also be applied equally.

In addition, in the above-described embodiment, the wheel Guo shape of the first lens arra 10, the optical surface shape etc. of lens feature 12e, 13e suitably can change accordingly with purposes, function.In addition, the configuration pattern of lens feature 12e, 13e is also not limited to diagram, can consider that processability etc. suitably sets.Further, for second resin bed 13 etc. of the opposition side of the first spacer 30, also can omit.

In the above-described embodiment, although carried out the hydrophilicity-imparting treatment such as silane coupled process or Cement Composite Treated by Plasma to the real estate 11a of substrate 11, also hydrophilicity-imparting treatment can have been omitted.

The manufacture method of the first lens arra 10, first spacer 30 described in the above-described embodiment etc. is simple illustration, can use not illustrative various method.

In addition, in the above-described embodiment, be not limited to 2 lens arra tectosomes 100,100 ', also identical lens arra tectosome can be laminated for more than 3.

In addition, in the above-described embodiment, although the profile of lens arra tectosome is formed as disc, can be the polyhedral shapes such as quadrangle, sexangle, also can be oval.

In addition, in the above-described embodiment, the projection 15 of dykes and dams shape is not limited to come to a point with Shan Zhuan upper end, outer ring, can for having the fluctuating slowly at the angle removing top 15a.

Without the need to the projection 15 all arranging above-mentioned dykes and dams shape of the first lens feature 12e at formation first lens arra 10, such as the first lens feature 12e of the center side at the center close to the first lens arra 10, because bonding agent has the trend more balancedly expanded, so the shape without projection 15 also can be formed as.

In addition, in the above-described embodiment, although be coated with bonding agent 83 on the first lens arra 10, but can make to reverse up and down, application of adhesive 83 on the end face 30u of the first spacer 30 thus close in the mode pressing the first lens arra 10, obtains bonding part 50 by the photocuring of bonding agent 83.In this case, also by the existence of the projection 15 of dykes and dams shape, stretching out of bonding agent 83 can be prevented.

In addition, be formed as lens arra tectosome 200 each lens arra tectosome 100 in the past by cutting, lens arra tectosome 100 is laminated for double-deck tectosome etc., also can singualtion.

Claims (29)

1. a manufacture method for lens arra tectosome, is characterized in that, possesses:

Prepare the operation with the lens arra of multiple lens body;

Prepare the operation with the spacer of the opening corresponding with described lens body;

Bonding agent is coated on the operation of the side in the carrying plane of described lens arra and the end face of described spacer with the coating pattern of the regulation of the rule that can configure around each of described multiple lens body;

Described carrying plane and described end face is made to clamp the opposed and operation that is that described lens arra and described spacer are fitted of described adhesive floor; And

Solidify by making the described bonding agent be sandwiched between described carrying plane with described end face and the operation that described lens arra is engaged with described spacer,

In the operation of the described bonding agent of coating, at least one party in the outside of the opening of the outer edge side in the outside of the lens body of the outer edge side in described lens body and described opening, forms the additional pattern of described bonding agent.

2. the manufacture method of lens arra tectosome according to claim 1, is characterized in that,

The coating pattern of described regulation is the basic pattern of the multiple unit cell pattern comprising repetition, and described additional pattern comprises the pattern elements different from described unit cell pattern.

3. the manufacture method of lens arra tectosome according to claim 2, is characterized in that,

Described additional pattern is a pattern part for described unit cell pattern widened.

4. the manufacture method of lens arra tectosome according to claim 2, is characterized in that,

Described additional pattern is the pattern described unit cell pattern distortion obtained.

5. the manufacture method of lens arra tectosome according to claim 1, is characterized in that,

The coating pattern of described regulation is the basic pattern of the multiple unit cell pattern comprising repetition, and described additional pattern comprises the pattern elements identical with described unit cell pattern, and is expanded continuously by the coating pattern of described regulation.

6. the manufacture method of lens arra tectosome according to claim 5, is characterized in that,

Described additional pattern comprises the pattern elements different from described unit cell pattern.

7. the manufacture method of the lens arra tectosome according to any one in claim 1 ~ 6, is characterized in that,

It is high that described additional pattern applies density compared with described unit cell pattern.

8. the manufacture method of the lens arra tectosome according to any one in claim 1 ~ 7, is characterized in that,

Described additional pattern has the closed region for the formation of space.

9. the manufacture method of the lens arra tectosome according to any one in claim 1 ~ 8, is characterized in that,

The coating pattern of described regulation is distributed in the grid point between the described lens body that formed on described lens arra or on grid frame.

10. the manufacture method of the lens arra tectosome according to any one in claim 1 ~ 8, is characterized in that,

The surrounding of the described opening be formed on described spacer seamlessly fills by the coating pattern of described regulation.

The manufacture method of 11. lens arra tectosomes according to any one in claim 1 ~ 10, is characterized in that,

When preparing described lens arra, the outside of the lens body of the outer edge side in described lens body forms virtual lens.

The manufacture method of 12. lens arra tectosomes according to claim 11, is characterized in that,

Described virtual lens at least partially compared with described lens body occupied area narrow.

The manufacture method of 13. lens arra tectosomes according to any one in claim 1 ~ 12, is characterized in that,

When preparing described spacer, the outside of the opening of outer edge side in said opening forms virtual aperture.

The manufacture method of 14. lens arra tectosomes according to claim 13, is characterized in that,

Described virtual aperture at least partially compared with described opening occupied area narrow.

The manufacture method of 15. lens arra tectosomes according to claim 14, is characterized in that,

In the operation preparing described lens arra, prepare that there is substrate, shaping and multiple lens section respectively with optical surface and the lens arra of the projection of dykes and dams shape will surrounded around the described optical surface on the real estate of one on the real estate of at least one party of described substrate

In the operation of described lens arra and described spacer being fitted, be solidified to form by making the bonding agent between the real estate of the one being located in described lens arra with described spacer the bonding part engaged with described spacer by described lens arra.

The manufacture method of 16. lens arra tectosomes according to claim 15, is characterized in that,

By the quantity delivered by being separately supplied to the lens resin material forming described lens section between described substrate and transfer mold, be adjusted to the amount needed for optical surface exceeding and form described lens section, thus form the projection of described dykes and dams shape.

17. 1 kinds of lens arra tectosomes, is characterized in that possessing:

Lens arra, it has substrate and shaping and have multiple lens sections of optical surface respectively on the real estate of at least one party of described substrate;

Spacer, it is arranged at the substrate surface side of one, and has the opening corresponding with described lens section; And

Bonding part, its being solidified to form by bonding agent, and described lens arra is engaged with described spacer,

The outside of the opening of the outer edge side in the outside of the lens body of the outer edge side of described bonding part in described lens body and described opening, has the additional drafting department different from the surrounding of each of described multiple lens body.

18. lens arra tectosomes according to claim 17, is characterized in that,

Described lens arra has the projection of the dykes and dams shape surrounding of the described optical surface on the real estate of one surrounded,

Described bonding part is set to stretch out from the end face of described spacer and the opposed region of described lens arra.

19. lens arra tectosomes according to claim 18, is characterized in that,

By the quantity delivered by being separately supplied to the lens resin material forming described lens section between described substrate and transfer mold, be adjusted to the amount needed for optical surface exceeding and form described lens section, thus the projection of described dykes and dams shape and described lens section form.

20. lens arra tectosomes according to claim 18, is characterized in that,

By carrying out transfer printing to the structure in transfer mold, thus the projection of described dykes and dams shape and described lens section form.

21. lens arra tectosomes according to any one in claim 18 ~ 20, is characterized in that,

The projection of described dykes and dams shape is set in the form of a ring and becomes multilayer in the direction vertical with circumference.

22. lens arra tectosomes according to any one in claim 18 ~ 21, is characterized in that,

The projection of described dykes and dams shape is equal with the thickness of the adhesive phase extended between the end face at described spacer of described bonding part and the real estate of one from the height that the real estate of one is started at, or for more than the thickness of adhesive phase that extends between the end face at described spacer of described bonding part and the real estate of one.

23. lens arra tectosomes according to any one in claim 18 ~ 22, is characterized in that,

Described multiple lens section is configured at the position of grid point independently.

24. lens arra tectosomes according to any one in claim 18 ~ 23, is characterized in that,

By in light-cured resin containing to have under normal temperature in solid and the bonding agent being changed to the solid epoxy compound of aqueous character by heating forms described bonding part.

25. lens arra tectosomes according to claim 24, is characterized in that,

Described solid epoxy compound is the compound with the molecular configuration in repetitive with aromatic rings.

26. lens arra tectosomes according to claim 24 or 25, is characterized in that,

The viscosity of described bonding agent at 25 DEG C is more than 6000cP below 15000cP.

27. lens arra tectosomes according to any one in claim 24 ~ 26, is characterized in that,

The thixotropic ratio of described bonding agent at 25 DEG C is less than more than 1.05 1.3.

28. lens arra tectosomes according to any one in claim 24 ~ 27, is characterized in that,

Bond strength after the solidification of described bonding agent is more than 0.4MPa.

29. lens arra tectosomes according to any one in claim 18 ~ 28, is characterized in that,

Also possess to clamp described spacer and the other lenses array that the mode opposed with described lens arra engages with described spacer.