WO2012161220A1 - ウェハーレンズの製造方法、ウェハーレンズの製造装置及び光学素子 - Google Patents
ウェハーレンズの製造方法、ウェハーレンズの製造装置及び光学素子 Download PDFInfo
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- WO2012161220A1 WO2012161220A1 PCT/JP2012/063191 JP2012063191W WO2012161220A1 WO 2012161220 A1 WO2012161220 A1 WO 2012161220A1 JP 2012063191 W JP2012063191 W JP 2012063191W WO 2012161220 A1 WO2012161220 A1 WO 2012161220A1
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- Prior art keywords
- mold
- substrate
- wafer lens
- support part
- positioning device
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/00009—Production of simple or compound lenses
- B29D11/00278—Lenticular sheets
- B29D11/00307—Producing lens wafers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/00932—Combined cutting and grinding thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/30—Mounting, exchanging or centering
- B29C33/308—Adjustable moulds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/22—Component parts, details or accessories; Auxiliary operations
- B29C39/24—Feeding the material into the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/22—Component parts, details or accessories; Auxiliary operations
- B29C39/26—Moulds or cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/021—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles characterised by the shape of the surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/0006—Arrays
- G02B3/0012—Arrays characterised by the manufacturing method
- G02B3/0031—Replication or moulding, e.g. hot embossing, UV-casting, injection moulding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
- B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
- B29C35/0888—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using transparant moulds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2009/00—Layered products
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2011/00—Optical elements, e.g. lenses, prisms
- B29L2011/0016—Lenses
Definitions
- the present invention relates to a wafer lens manufacturing method for forming a plurality of resin optical lenses by transfer onto a light-transmitting substrate, a wafer lens manufacturing apparatus, and an optical element obtained by these methods.
- a so-called wafer lens in which a plurality of optical element portions are formed on the surface of a base material having translucency is manufactured.
- a device that is cut into individual pieces and used as a lens for an imaging device or the like is known.
- a mold having a transfer surface for forming a plurality of optical element parts is used as a mold for defining the distance from the substrate surface on which the optical element part is formed to the optical element part surface.
- One in which the portions are integrally formed is known (for example, see Patent Documents 1 and 2).
- the optical system composed of the lens cut and separated from the above wafer lens is extremely small as represented by the camera module for mobile phones.
- a lens incorporated in such an optical system is effective in simplifying the manufacturing process if it can be assembled without adjustment without using an adjustment mechanism. For this purpose, variations in optical specifications of individual lenses are desired. It is required to be within the allowable range.
- the substrate has an error in thickness.
- the thickness of the formed optical element part thickness from the back surface of the base material to the surface of the optical element part
- the thickness of the formed optical element part has an error in the base material thickness as it is. That is, individual optical elements formed of base materials having different thicknesses have greatly different optical characteristics, and become manifest as variations in focal position even when incorporated in an imaging apparatus.
- An object of the present invention is to provide a wafer lens manufacturing method and a wafer lens manufacturing apparatus capable of forming a wafer lens having a plurality of optical elements having desired characteristics and solving the above-described problems in the prior art.
- Another object of the present invention is to provide an optical element with uniform characteristics obtained by the wafer lens manufacturing apparatus as described above.
- a method for producing a wafer lens according to the present invention includes a resin layer having a plurality of optical surfaces by transfer using a mold on at least one surface of a light-transmitting plate-like substrate.
- the positioning device provided as a separate body from the mold is used to adjust the distance between the mold and the substrate, it is difficult to form the gap as expected.
- the thickness of the optical element can be set based on the optical surface regardless of the thickness of the substrate. As a result, a wafer lens in which a plurality of optical elements having the desired characteristics, that is, optical specifications are substantially uniform can be manufactured.
- the distance between the mold and the substrate by the positioning device is corrected based on the dimensional error of the wafer lens formed last time. Therefore, it is not necessary to remake the mold, and the production cost can be efficiently reduced.
- the positioning device is provided on both the mold support portion side and the substrate support portion side, the first abutting member provided on the mold support portion side, and the substrate support And a second abutting member provided on the side of the portion, and by changing the amount of projection of at least one of the first abutting member and the second abutting member, the distance between the mold and the substrate Adjust.
- a wafer lens manufacturing apparatus includes a substrate support portion that supports a light-transmitting plate-like substrate, a substrate support portion, and one surface of the substrate.
- a mold support Separately from the mold, a mold support for supporting a mold for molding a resin layer having a plurality of optical surfaces thereon by transfer, an elevating device for moving the substrate support and the mold support close to and away from the mold, and the mold
- the mold is provided on at least one of the substrate support part side and the mold support part side, and is brought into contact with the other side when the substrate support part and the mold support part are brought close to each other by the lifting device.
- a positioning device having an abutting member for adjusting the distance between the substrate and the substrate.
- the positioning device is provided as a separate body from the molding die in order to adjust the spacing between the molding die and the substrate, it is difficult to form the spacing as expected. Need not be provided in the mold, and the thickness of the optical element can be set based on the optical surface regardless of the thickness of the substrate. As a result, a wafer lens in which a plurality of optical elements having the desired characteristics, that is, optical specifications are substantially uniform can be manufactured.
- the positioning device is provided on the mold support portion side, and the abutting member abuts against a predetermined surface serving as a reference for arranging the substrates. Hit.
- the thickness of the optical element can be easily approximated to an expected value by an operation of adjusting the position of the predetermined surface serving as a reference by the abutting member.
- the abutting member is abutted against the surface of the back plate that supports the substrate from behind.
- the thickness from the back surface of the substrate to the optical surface can be brought close to an intended value regardless of variations in the substrate thickness.
- the positioning device is provided on the substrate support portion side, and the abutting member is abutted against a predetermined surface that avoids the resin layer constituting the mold. Even in such a configuration, the thickness from the back surface of the substrate to the optical surface can be brought close to an intended value regardless of variations in the substrate thickness.
- the positioning device is arranged at three positions around the substrate and the mold, and the protruding amount of the abutting member can be individually changed.
- the tilt relationship between the mold and the substrate can be adjusted, and a wafer lens on which an optical element having a more uniform optical specification is formed can be manufactured.
- the positioning device is provided on both the mold support part side and the substrate support part side, the first abutting member provided on the mold support part side, and the substrate A second abutting member provided on the support portion side, and the first abutting member and the second abutting member are butted against each other.
- the positioning device changes the distance between the mold and the substrate by changing the amount of protrusion of at least one of the first butting member and the second butting member. .
- the optical element according to the present invention is obtained by separating the wafer lens manufactured by the above-described wafer lens manufacturing method.
- the optical element obtained in this manner has the desired characteristics with uniform optical specifications.
- the optical element according to the present invention is obtained by separating the wafer lens manufactured by the above-described wafer lens manufacturing apparatus.
- the optical element obtained in this manner has the desired characteristics with uniform optical specifications.
- FIG. 2A is a plan view illustrating a positioning device and the like
- FIG. 2B is a side cross-sectional view illustrating the positioning device and the like. It is a side view explaining the structure of one butting device which comprises a positioning device.
- 4A and 4B are views for explaining the manufacturing method of the first embodiment.
- 5A to 5C are views for explaining the manufacturing method of the first embodiment.
- 6A is a plan view illustrating a positioning device incorporated in the manufacturing apparatus of the second embodiment
- FIG. 6B is a side sectional view of the positioning device of FIG. 6A.
- FIG. 7A is a plan view illustrating a positioning device incorporated in the manufacturing apparatus of the third embodiment
- FIG. 7B is a side cross-sectional view of the positioning device of FIG. 7A.
- 8A and 8B are side sectional views for explaining a main part of the manufacturing apparatus of the fourth embodiment.
- 9A and 9B are diagrams illustrating a modification of the manufacturing apparatus according to the fourth embodiment.
- 10A and 10B are side cross-sectional views for explaining a main part of the manufacturing apparatus according to the fifth embodiment.
- 11A to 11C are diagrams illustrating a manufacturing process in the case where a resin layer having a plurality of optical surfaces is formed on both surfaces of a substrate.
- 12A to 12C are diagrams illustrating a manufacturing process in the case where a resin layer having a plurality of optical surfaces is formed on both surfaces of a substrate.
- 13A to 13C are diagrams illustrating a manufacturing process in the case where a resin layer having a plurality of optical surfaces is formed on both surfaces of a substrate and a spacer is formed.
- 14A to 14C are diagrams for explaining a manufacturing process in the case where a resin layer having a plurality of optical surfaces is formed on both surfaces of a substrate and a spacer is formed.
- 15A and 15B are diagrams illustrating a manufacturing process in the case where a resin layer having a plurality of optical surfaces is formed on both surfaces of a substrate and a spacer is formed. It is a figure explaining the modification of the manufacturing apparatus of 1st Embodiment.
- FIG. 1 is a diagram conceptually illustrating a wafer lens manufacturing apparatus.
- the illustrated manufacturing apparatus 100 includes a first mounting portion 10 on the side on which a mold is attached, a second mounting portion 20 on a side on which a flat plate having translucency is attached, a stage 30, and a lifting device 40.
- the positioning device 50, the attachment / detachment drive unit 60, the light source unit 70, and the control unit 80 are provided.
- the first attachment unit 10 is a mold support unit that supports the back surface 91 b of the mold 91 from below, and a base 11 supported by the stage 30 and a back plate fixed on the base 11. Twelve.
- a plurality of abutting devices 51 constituting the positioning device 50 are fixed to the base 11.
- the back plate 12 is a flat plate-like suction jig having a suction part (not shown) that is driven by the attachment / detachment drive part 60 to operate, and the molding die 91 is sucked and fixed to the surface 12a. The adsorption of the molding die 91 to 12a can be stopped and the molding die 91 can be detached.
- the back plate 12 is made of a light-transmitting material, and the curing light CL from the light source unit 70 can be incident on the mold 91 through the opening AP of the base 11.
- the molding die 91 attached to the first attachment portion 10 includes a transparent substrate 92 and a light-transmitting resin layer 93 formed on the transparent substrate 92, as shown in FIG.
- a recess DR is formed on the front side surface 93 a of the resin layer 93, that is, the front side surface 91 a of the mold 91.
- the periphery of the recess DR is substantially flat.
- the surface of the recess DR is an optical transfer surface 91e described later, and the surface around the recess DR is a flange transfer surface 91f.
- the mold 91 has a relatively high transmittance with respect to the curing light CL emitted from the light source unit 70.
- the mold 91 can be formed by transfer from an original mold, for example. Specifically, a liquid resin material is sandwiched between a flat transparent substrate and the original mold and solidified by photocuring or the like, whereby the shape of the original mold is transferred and has an inverted shape. A mold 91 is obtained.
- the original mold may also be formed by transfer from the original master.
- the second mounting portion 20 is a substrate support portion that is supported on the back surface 95b side of the transparent substrate 95, which is a light-transmitting flat plate substrate that constitutes a part of a wafer lens WL described later.
- a back plate 21 is provided.
- the back plate 21 is a flat plate-like suction jig having a suction part (not shown) that is driven by the attachment / detachment drive part 60 to operate, and the transparent substrate 95 is sucked and fixed to the surface 21a. The adsorption of the transparent substrate 95 to the 21a can be stopped and the transparent substrate 95 can be detached.
- the stage 30 can be finely moved two-dimensionally along the XY plane in a state in which the first attachment portion (die support portion) 10 is supported, and the molding die 91 supported on the first attachment portion 10 can be moved in a first manner.
- the transparent substrate 95 fixed to the mounting portion 20 can be aligned with respect to the XY direction.
- the stage 30 may be configured to be capable of turning in the XY plane so that alignment in the rotation direction can be performed.
- the elevating device 40 has a support shaft member 41 that expands and contracts, and can raise and lower the second attachment portion (substrate support portion) 20 in the Z direction.
- the transparent substrate 95 fixed to the second mounting portion 20 is advanced and retracted in the Z direction in a state of facing the molding die 91 supported on the first mounting portion 10, so that the first mounting portion 10 and the second mounting portion are attached.
- the part 20 can be brought close to and separated from the part 20.
- the stage 30 that supports the first mounting portion 10 and the lifting device 40 that supports the second mounting portion 20 are fixed to a frame 101 that surrounds the whole.
- the positioning device 50 is provided on the first attachment portion (die support portion) 10 side and has a plurality of abutment devices 51. Each abutment device 51 protrudes from the first attachment portion 10. And a displacement device 53 that drives and displaces the rod portion 52.
- the rod portion 52 functions as an abutting member for adjusting the interval that abuts against the surface 21 a of the back plate 21 of the second mounting portion 20 that serves as a reference for disposing the transparent substrate 95.
- the positioning device 50 includes three abutting devices 51, and these abutting devices 51 are substantially arranged around the molding die 91 so as to surround the molding die 91 fixed to the first mounting portion 10 from the periphery. They are evenly spaced. Each butting device 51 is fixed so as to be embedded in the base portion 11 of the first attachment portion 10.
- each butting device 51 is driven by the displacement device 53 to move up and down in the Z direction.
- the displacement device 53 adjusts the protruding amount p of the rod portion 52 from the first mounting portion 10 by raising and lowering the rod portion 52 by a desired amount.
- the displacement device 53 can be provided with a sensor (not shown) that monitors the protruding amount p of the rod portion 52.
- Each butting device 51 is driven by the expansion / contraction drive unit 59 under the control of the control unit 80 and operates in synchronization with each other, and similarly raises and lowers the three rod portions 52 in the Z direction.
- interval d space
- tilt between the mold 91 and the transparent substrate 95 can be corrected to be in an accurate parallel state, and the wafer lens WL on which optical elements with more uniform optical specifications are formed can be manufactured.
- FIG. 3 is a side view illustrating the structure of one butting device 51 constituting the positioning device 50 shown in FIG. 1 and the like.
- the displacement device 53 on the base side of the abutting device 51 includes a coarse movement portion 55 and a fine movement portion 56.
- the coarse movement part 55 raises / lowers the second member 57b largely with respect to the first member 57a.
- the coarse movement portion 55 includes a guide 55b, a rotation drive portion 55c, a male screw portion 55e, and a female screw portion 55f.
- the guide 55b has a guide rod 55g and a guide hole 55h.
- the rotation drive part 55c consists of a motor etc.
- the male screw part 55e is rotated by operating the rotation driving part 55c, and accordingly, the second member 57b whose rotation is restricted by the guide 55b moves up and down in the Z direction by a desired amount.
- the fine movement part 56 is formed of a piezo element 56a or the like, and the rod part 52 can be accurately moved up and down by a small amount in the Z direction in finer increments than the coarse movement part 55 by its own expansion and contraction.
- the tip 52a of the rod portion 52 is processed into a spherical surface or other convex curved surface. Thereby, when supporting the surface 21a of the lower end of the 2nd attachment part 20 which descend
- the attachment / detachment driving unit 60 operates or stops a suction unit (not shown) provided on the back plate 12 of the first mounting unit 10 under the control of the control unit 80, thereby moving to the first mounting unit 10.
- This member (the molding die 91 in FIG. 1) can be attached and detached.
- the attachment / detachment driving unit 60 operates or stops a suction unit (not shown) provided on the back plate 21 of the second mounting unit 20 under the control of the control unit 80, so that a member (see FIG. 1 makes it possible to attach and detach the transparent substrate 95).
- the light source unit 70 operates under the control of the control unit 80, radiates curing light through the first mounting unit 10, and is fixed to the molding die 91 supported by the first mounting unit 10 and the second mounting unit 20.
- the photocurable resin agent RA locally filled between the transparent substrate 95 and the transparent substrate 95 is cured.
- the entire surface of the resin layer 93 of the mold 91 may be filled with the photocurable resin agent RA and cured.
- a molding die 91 is mounted on the upper part of the first mounting portion 10.
- the back plate 12 supports the back surface 91b of the mold 91 while adsorbing it.
- the transparent substrate 95 is fixed to the lower part of the second mounting portion 20.
- the back plate 21 supports the back surface 95b of the transparent substrate 95 while adsorbing it.
- the stage 30 adjusts the alignment between the molding die 91 supported on the first mounting portion 10 and the transparent substrate 95 fixed to the second mounting portion 20.
- a photo-curable resin agent RA is supplied to each recess DR formed on the front side of the mold 91 mounted on the first mounting portion 10.
- a dispenser for injecting a photocurable resin agent RA is prepared, and the liquid resin agent RA is sufficiently coated so as to sufficiently cover the optical transfer surface 91e formed on the mold 91 and the peripheral flange transfer surface 91f. Supply.
- the liquid resin agent RA is supplied in a state of being separated independently from each concave portion DR or the optical transfer surface 91e.
- the lifting device 40 is operated to lower the second mounting portion 20.
- the back plate 21 of the second mounting portion 20 comes into contact with the tip 52 a of the rod portion 52 of each abutting device 51 that constitutes the positioning device 50.
- an upper limit is set for the pressure by which the second mounting portion 20 is lowered by the lifting device 40, and the lowering of the second mounting portion 20 is stopped, and the upper surface (that is, the surface 12a) of the first mounting portion 10 and the second A distance d from the lower surface (that is, the front surface 21a) of the mounting portion 20 is defined. That is, the distance from the back surface 91b of the mold 91 to the back surface 95b of the transparent substrate 95 is defined.
- the position of the front end 52a is adjusted in advance from the back surface 91b of the transparent substrate 92 of the mold 91 in consideration of the thickness d1 of the front side surface 91a of the resin layer 93.
- the distance d2 from the back surface 95b of the transparent substrate 95 to the target value can be precisely set.
- the light source unit 70 shown in FIG. 1 is operated to irradiate the curing light through the first mounting unit 10, so that the concave portion DR and its periphery are locally filled between the mold 91 and the transparent substrate 95.
- the cured photocurable resin agent RA is cured to form a resin layer portion RL having an optical surface.
- the resin layer portion RL can be heated to cure the resin layer portion RL more reliably.
- a number of resin layer portions RL are formed on the transparent substrate 95 by such shape transfer, and the wafer lens WL is manufactured.
- the whole of the plurality of resin layer portions RL is a resin layer 94 that covers the front side surface 95 a of the transparent substrate 95.
- Each resin layer portion RL and the portion 95e of the transparent substrate 95 facing the resin layer portion RL form the optical element 15 that functions as a lens or the like.
- the suction of the mold 91 by the first mounting portion 10 is released, and the lifting device 40 is operated to raise the second mounting portion 20.
- the transparent substrate 95 adsorbed on the second mounting portion 20, that is, the wafer lens WL is raised, and the mold 91 is also raised accordingly.
- the mold 91 is in a state of being bonded to the transparent substrate 95 by the cured resin layer portion RL.
- the suction of the transparent substrate 95 by the second mounting portion 20 is released, the wafer lens WL is taken out of the manufacturing apparatus 100 together with the mold 91, and the wafer lens WL is separated from the mold 91 (see FIG. 5B).
- the wafer lens WL obtained in this way is cut between the resin layer portions RL and separated into optical elements 15 corresponding to the individual resin layer portions RL (see FIG. 5C).
- the optical element 15 has a portion 95e of the transparent substrate 95 and a separated resin layer portion RL, and the resin layer portion RL has an optical surface portion Pa and a flange portion Pb.
- the surface of the optical surface portion Pa is a convex optical surface Pd.
- the thickness t of the optical element 15 is obtained by adding the maximum thickness t2 of the resin layer portion RL to the thickness t1 of the transparent substrate 95. As described with reference to FIG.
- the distance d2 from the front side surface 91a of the mold 91 to the back surface 95b of the transparent substrate 95 is adjusted to the target value by a simple operation by positioning using the abutting device 51. Can do.
- the thickness t of the optical element 15 can be brought close to the target value, the individual optical elements 15 obtained by cutting have the desired characteristics with the same optical specifications. Even if the thickness of the transparent substrate 95 varies locally or there is a variation in thickness among the plurality of transparent substrates 95 and the thickness t1 varies, the distance d2 corresponding to the thickness or the thickness of the optical element 15 t can be kept constant and fluctuations in optical properties can be reduced.
- the abutting device 51 of the positioning device 50 since the abutting device 51 of the positioning device 50 has an adjustment function, for example, when the wafer lens WL obtained by the first transfer has a dimensional error exceeding the tolerance, The second and subsequent corrections can be made to reduce the dimensional error, and it is not necessary to recreate the mold, so that productivity can be improved and production cost can be reduced.
- the positioning device 50 is configured by the three abutting devices 51 to enable tilt correction, the difference in thickness due to the position of the wafer lens WL is reduced, and the variation in the thickness t of the optical element 15 is further reduced. Can do.
- the positioning device 50 provided as a separate body from the molding die 91 is used to adjust the distance between the molding die 91 and the transparent substrate 95. It is not necessary to provide a convex portion for adjusting the interval on the molding die 91, and the thickness of the optical element 15 based on the optical surface Pd can be set regardless of the thickness of the transparent substrate 95. Thereby, a wafer lens WL having a desired characteristic, that is, including a plurality of optical elements 15 having substantially uniform optical specifications can be formed. Further, by dividing the wafer lens WL into individual pieces, it is possible to easily manufacture a large number of optical elements 15 having substantially uniform optical specifications.
- FIGS. 6A and 6B are a plan view and a side sectional view for explaining a positioning device and the like incorporated in the manufacturing apparatus of the second embodiment.
- the illustrated positioning device 250 includes two abutting devices 251, and the both abutting devices 251 are arranged to face each other in the horizontal direction so as to sandwich the molding die 91 fixed to the first mounting portion 10. ing.
- Each abutting device 251 includes a block portion 252 protruding from the first attachment portion 10 and a displacement device 53 that drives and displaces the block portion 252.
- the block portion 252 is provided on the molding die 91 side, and functions as an abutting member for adjusting a distance to be abutted against the surface 21 a of the back plate 21 of the second mounting portion 20 that serves as a reference for disposing the transparent substrate 95.
- the block portion (abutting member) 252 is a member extending in the XZ direction, for example, and is moved up and down in the Z direction while being driven by the displacement device 53 and maintaining the posture.
- the pair of abutting devices 251 are driven by the expansion / contraction drive unit 59 (see FIG. 1) and operate in synchronization with each other, and similarly raise and lower the two block units 252 in the Z direction.
- the distance d between the first mounting portion 10 and the second mounting portion 20 is extended.
- the thickness t of the optical element 15 can be precisely adjusted.
- a wafer lens manufacturing apparatus according to the third embodiment will be described below.
- this embodiment is a modification of the manufacturing apparatus of 1st Embodiment, The part or matter which is not demonstrated especially is the same as that of the case of 1st Embodiment.
- the illustrated positioning device 350 includes a single abutting device 351.
- the abutting device 351 is fixed to a plurality of rod portions 352 projecting from the first mounting portion 10, a plurality of displacement devices 53 that drive and displace these rod portions 352, and tips 52 a of the plurality of rod portions 352.
- an annular contact member 54 is provided.
- the contact member 54 has an opening OP that is slightly larger than the diameter of the molding die 91 in order to avoid interference with the molding die 91 during elevation.
- the contact member 54 is provided on the molding die 91 side, and functions as an abutting member for adjusting a distance to be abutted against the surface 21 a of the back plate 21 of the second mounting portion 20 which is a reference for disposing the transparent substrate 95. To do.
- the abutting device 351 operates by being driven by the expansion / contraction driving unit 59 of FIG. 1, and similarly raises and lowers the abutting member (abutting member) 54 in the Z direction.
- the distance d between the first mounting portion 10 and the second mounting portion 20 is extended.
- the thickness t of the optical element 15 can be precisely adjusted.
- the positioning device 450 incorporated in the manufacturing apparatus of the fourth embodiment is provided on the second attachment portion (substrate support portion) 20 side.
- the plurality of abutting devices 451 constituting the positioning device 450 have the same structure as the abutting device 51 of the first embodiment shown in FIG. 1 and the like, but on the base portion 22 of the second attachment portion (substrate support portion) 20. It is fixed to embed.
- the rod portion 52 of each abutting device 451 has a surface 11a of the base portion 11 of the first mounting portion 10 that serves as a reference for the placement of the forming die 91 when the forming die 91 and the transparent substrate 95 are aligned as shown in FIG. 8B. It functions as an abutting member for adjusting the interval that is abutted against the surface.
- the positioning device 450 is provided on the second mounting portion (substrate support portion) 20 side.
- the thickness t of the optical element 15 can be adjusted to a desired value regardless of the variation in the thickness of the transparent substrate 95. Even if comprised in this way, the effect similar to 1st Embodiment can be acquired.
- FIGS. 8A and 8B the tip 52a of the rod portion 52 provided in the abutting device 451 is abutted against the surface 11a of the base 11, but various modifications are possible.
- 9A and 9B are diagrams illustrating a modification of the manufacturing apparatus according to the fourth embodiment.
- the example shown in FIG. 9A is an example in which the tip 52 a of the rod portion 52 provided in the abutting device 451 is abutted against the surface of the back plate 12.
- 9B is an example in which the tip 52a of the rod portion 52 provided in the abutting device 451 is abutted against the surface of the transparent substrate 92 constituting the molding die 91.
- the thickness t of the optical element 15 can be adjusted to a desired value regardless of the variation in the thickness of the transparent substrate 95.
- the positioning device 550 incorporated in the manufacturing apparatus of the fifth embodiment is provided in both the first attachment portion (die support portion) 10 and the second attachment portion (substrate support portion) 20. It has been.
- the first abutting device 51 constituting the positioning device 550 is provided on the first mounting portion (die support portion) 10 side and has the same structure as the abutting device 51 of the first embodiment shown in FIG. .
- the second abutting device 551 constituting the positioning device 550 is provided on the second attachment portion (substrate support portion) 20 side, and has the same structure as the abutting device 451 of the fourth embodiment shown in FIG. 8A and the like.
- the tip 52a of the first rod portion (first abutting member) 52 provided in the first abutting device 51, and the second The end portion 52a of the second rod portion (second abutting member) 52 provided in the abutting device 551 comes into contact.
- molding die 91 and the back surface 95b of the transparent substrate 95 can be adjusted by changing the protrusion amount of at least one of the 1st rod part 52 and the 2nd rod part 52.
- the tip 52a of the rod portion 52 provided in the first abutting device 51 is flat, and the tip 52a of the rod portion 52 provided in the second abutting device 551 is a curved projection. ing.
- molding die 91 and the transparent substrate 95 can be improved.
- substrate support part) 20 can be enlarged rather than the case where it arrange
- the first mold 91 is fixed to the first mounting portion 10 and the transparent substrate 95 is fixed to the second mounting portion 20.
- a liquid photocurable resin agent RA is supplied to each of the recesses DR formed on the front side of the first molding die 91 fixed on the first mounting portion 10 and the periphery thereof.
- the lifting device 40 is operated to lower the second attachment portion 20.
- the lowering of the second attachment portion 20 is continued until the surface 21a of the back plate 21 comes into contact with the tip 52a of the rod portion 52 of each abutting device 51 constituting the positioning device 50 with a constant force.
- interval d of the surface 12a of the 1st attachment part 10 and the surface 21a of the 2nd attachment part 20 is prescribed
- the position of the tip 52a is adjusted in advance from the back surface 91b of the transparent substrate 92 of the molding die 91 in consideration of the thickness of the front side surface 91a of the resin layer 93.
- the distance to the back surface 95b of the transparent substrate 95 is set as a target value.
- the light source unit 70 shown in FIG. 1 is operated to illuminate the transparent substrate 95 and the like through the first mounting unit 10, and the concave portion DR and its surroundings are between the first mold 91 and the transparent substrate 95.
- the photocurable resin agent RA that is locally filled in is cured to form a resin layer portion RL.
- a product in which a large number of resin layer portions RL are formed on the transparent substrate 95 by such shape transfer is a semi-finished product SP of the wafer lens WL (see FIG. 11C).
- the semi-finished product SP the whole of the plurality of resin layer portions RL is a first resin layer 94 that covers the front side surface 95a of the transparent substrate 95.
- the suction of the first mold 91 by the first mounting portion 10 is released, the second mounting portion 20 is lifted by the lifting device 40, and the transparent substrate by the second mounting portion 20 is used.
- 95 that is, the suction of the semi-finished product SP is released, the front and back of the semi-finished product SP are reversed, and the second attachment portion 20 is again suctioned.
- the semi-finished product SP is fixed to the second mounting portion 20 via the first molding die 91.
- the second molding die 691 is fixed to the first attachment portion 10.
- a liquid photocurable resin agent RA is supplied to each convex portion PR formed on the front side of the second mold 691 fixed on the first mounting portion 10 and the periphery thereof.
- tip 52a of the rod part 52 of each butting apparatus 51 provided in the positioning apparatus 50 is corrected upwards in preparation for the next process.
- the position of the tip 52a is adjusted in consideration of the thickness of the front side surface 91a of the resin layer 93 from the back surface 91b of the transparent substrate 92 of the second mold 691.
- the lifting device 40 is operated to lower the second mounting portion 20.
- the lowering of the second attachment portion 20 is continued until the back plate 21 comes into contact with the tip 52a of the rod portion 52 of each abutting device 51 constituting the positioning device 50 with a constant force.
- interval d of the surface 12a of the 1st attachment part 10 and the surface 21a of the 2nd attachment part 20 is prescribed
- the light source part 70 shown in FIG. 1 is operated to illuminate the semi-finished product SP and the like through the first mounting part 10, and the convex part PR and its part between the second molding die 691 and the semi-finished product SP.
- the photocurable resin agent RA locally filled in the periphery is cured to form a resin layer portion RL.
- a wafer lens WL is formed by forming a large number of resin layer portions RL on both surfaces 95a and 95b of the transparent substrate 95 by such shape transfer.
- the whole of the plurality of resin layer portions RL is a second resin layer 694 that covers the back surface 95b of the transparent substrate 95 (see FIG. 12B).
- the wafer lens WL obtained in this way is cut at a position between the resin layer portions RL and separated into optical elements 15 corresponding to the individual resin layer portions RL.
- the wafer lens manufacturing apparatus according to the present embodiment can be applied not only when a resin layer having an optical element portion is formed on one side but also when formed on both sides, and has more versatility. Can be.
- both surfaces of the transparent substrate 95 are formed in the same process.
- a resin layer can be formed.
- the first mold 91 is fixed to the first mounting portion 10, and the transparent substrate 95 is fixed to the second mounting portion 20.
- a liquid photocurable resin agent RA is supplied to each of the recesses DR formed on the front side of the first molding die 91 fixed on the first mounting portion 10 and the periphery thereof.
- the lifting device 40 is operated to lower the second attachment portion 20.
- the lowering of the second attachment portion 20 is continued until the back plate 21 comes into contact with the tip 52a of the rod portion 52 of each abutting device 51 constituting the positioning device 50 with a constant force.
- the light source unit 70 shown in FIG. 1 is operated to illuminate the transparent substrate 95 and the like through the first mounting unit 10, and the concave portion DR and its surroundings are between the first mold 91 and the transparent substrate 95.
- the photocurable resin agent RA that is locally filled in is cured to form a resin layer portion RL.
- a product in which a large number of resin layer portions RL are formed on the transparent substrate 95 by such shape transfer is a semi-finished product SP of the wafer lens WL.
- the whole of the plurality of resin layer portions RL is a first resin layer 94 that covers the front side surface 95a of the transparent substrate 95.
- the lifting / lowering device 40 is operated to raise the second mounting portion 20, and the first mold 91 and the transparent substrate 95 are taken out, and the mold 91 is separated into a semi-finished product SP.
- the back surface 98b side of the lattice-like spacer 98 is sucked and fixed to the back plate 21 of the second mounting portion 20, and the semi-finished product SP is transparent to the back plate 12 of the first mounting portion 10.
- the back surface 95b side of the substrate 95 is fixed.
- a liquid photo-curable resin agent is applied to the lower end surface 98a of the spacer 98 fixed to the second mounting portion 20 or the peripheral portion of the resin layer portion RL of the semi-finished product SP fixed to the first mounting portion 10.
- the spacer 98 has a through hole 98 c in order to avoid interference with the resin layer portion RL constituting the resin layer 94.
- tip 52a of the rod part 52 of each butting apparatus 51 provided in the positioning apparatus 50 is corrected below for preparation of the next process.
- the position of the tip 52a is adjusted so that the distance from the back surface 95b of the transparent substrate 95 of the semi-finished product SP to the back surface 98b of the spacer 98 (that is, the surface of the back plate 21) is a desired distance.
- the lifting device 40 is operated to lower the second mounting portion 20.
- the lowering of the second attachment portion 20 is continued until the back plate 21 comes into contact with the tip 52a of the rod portion 52 of each abutting device 51 constituting the positioning device 50 with a constant force.
- the lower end surface 98a of the spacer 98 and the front side surface of the semi-finished product SP are close to each other, and the second mounting portion 20 stops at a position where the distance from the back surface 95b of the transparent substrate 95 to the back surface 98b of the spacer 98 is a desired distance. To do.
- the light source unit 70 shown in FIG. 1 is operated to illuminate the transparent substrate 95 and the like through the first mounting unit 10, and the space between the lower end surface 98 a of the spacer 98 and the front side surface of the semi-finished product SP is locally filled.
- the photocurable resin agent QA thus cured is cured.
- the semi-finished product SP2 in which the spacer 98 is fixed on the semi-finished product SP is formed.
- the position of the tip 52a is adjusted to the above-described position, even if the thickness of the spacer 98 varies, the error is absorbed by the change in the thickness of the resin agent RA, and the spacer is removed from the back surface 95b of the transparent substrate 95.
- the semi-finished product SP2 in which the distance to the back surface 98b of 98 is accurately defined can be obtained.
- the suction of the semi-finished product SP2 by the first mounting portion 10 is released, and the semi-finished product SP2 is raised together with the second mounting portion 20 by the lifting device 40.
- the second molding die 691 is fixed to the first attachment portion 10.
- a liquid photocurable resin agent RA is supplied to each convex portion PR formed on the front side of the second mold 691 fixed on the first mounting portion 10 and the periphery thereof.
- tip 52a of the rod part 52 of each butting apparatus 51 provided in the positioning apparatus 50 is corrected upwards in preparation for the next process.
- the position of the tip 52a is adjusted in consideration of the thickness of the front side surface 91a of the resin layer 93 from the back surface 91b of the transparent substrate 92 of the second mold 691.
- the lifting device 40 is operated to lower the second attachment portion 20.
- the lowering of the second attachment portion 20 is continued until the back plate 21 comes into contact with the tip 52a of the rod portion 52 of each abutting device 51 constituting the positioning device 50 with a constant force.
- interval d of the surface 12a of the 1st attachment part 10 and the surface 21a of the 2nd attachment part 20 is prescribed
- the light source unit 70 shown in FIG. 1 is operated to illuminate the semi-finished product SP2 and the like through the first mounting unit 10, and between the second molding die 691 and the semi-finished product SP2, the projection PR and its The photocurable resin agent RA locally filled in the periphery is cured to form a resin layer portion RL.
- a wafer lens WL is formed by forming a large number of resin layer portions RL on both surfaces 95a and 95b of the transparent substrate 95 by such shape transfer.
- the whole of the plurality of resin layer portions RL together constitutes a second resin layer 694 that covers the back surface 95b of the transparent substrate 95.
- the wafer lens WL thus obtained is cut at the position of the spacer 98 and separated into optical elements 15 corresponding to individual resin layer portions RL as indicated by broken lines.
- the wafer lens manufacturing apparatus can be applied not only when the resin layer having the optical element part is formed on both surfaces but also when the spacer 98 is formed, and is extremely versatile. It can have.
- the shape of the resin layer 94 and the resin layer portion RL on which the wafer lens WL and the optical element 15 are formed is merely an example, and is set as appropriate in consideration of the use and lamination of the optical element 15. be able to.
- the resin layer 94 is not limited to one separated for each optical element 15, and may be formed without a break on the entire wafer lens WL.
- the resin layer 94 and the like are formed of the photocurable resin agent RA, and the resin agent RA is cured by light irradiation. However, the curing is accelerated by heating in addition to the light irradiation. May be.
- the resin layers 94, 694, and the like can be formed of another energy curable resin such as a thermosetting resin instead of the photocurable resin agent RA.
- the distance between the back surface 91b of the mold 91 and the back surface 95b of the transparent substrate 95 or the like is adjusted by the positioning device 50, but other intervals can be adjusted.
- the positioning device 50 is provided independently of the molding die 91, the transparent substrate 95, and the like, and enables the interval adjustment without being restricted by the surface shape of the molding die 91 or the transparent substrate 95.
- the abutting device 51 is provided around the mold 91 and the transparent substrate 95. However, if through holes are provided in the mold 91 and the transparent substrate 95, the inside of the mold 91 and the transparent substrate 95 is provided.
- the abutting device 51 can also be arranged on the surface. In this case, the reliability and stability of the interval adjustment can be improved.
- the structure of the butting device 51 shown in FIG. 3 and the like is merely an example, and various mechanisms can be used as long as the rod portion 52 can be raised and lowered stably with high accuracy.
- the object to which the rod portion 52 of the abutting device 51 is abutted is not limited to the surface of the back plates 12 and 21 and various reference positions and it can.
- a portion that is not a transfer surface is provided on the outer periphery of the front side surface 95 a of the transparent substrate 95, and the end 52 a of the rod portion 52 is abutted against the non-transfer surface portion. It is possible to obtain a wafer lens on which optical elements having uniform optical specifications are formed by precisely defining the thickness from the surface to the surface of the transparent substrate 95.
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Abstract
Description
図面を参照して、本発明の第1実施形態に係るウェハーレンズの製造方法及びウェハーレンズの製造装置について説明する。
以下、第2実施形態に係るウェハーレンズの製造装置について説明する。なお、本実施形態は、第1実施形態の製造装置の変形例であり、特に説明しない部分又は事項は、第1実施形態の場合と同様である。
以下、第3実施形態に係るウェハーレンズの製造装置について説明する。なお、本実施形態は、第1実施形態の製造装置の変形例であり、特に説明しない部分又は事項は、第1実施形態の場合と同様である。
以下、第4実施形態に係るウェハーレンズの製造装置について説明する。なお、本実施形態は、第1実施形態の製造装置の変形例であり、特に説明しない部分又は事項は、第1実施形態の場合と同様である。
図9A及び9Bは、第4実施形態の製造装置の変形例を説明する図である。
図9Aに示す例は、突き当て装置451に設けたロッド部52の先端52aをバックプレート12の表面に突き当てた例である。また、図9Bに示す例は、突き当て装置451に設けたロッド部52の先端52aを成形型91を構成する透明基板92の表面に突き当てた例である。このように構成しても透明基板95の厚みのバラツキに関わらず光学素子15の厚みtを所望の値に調整することができる。
以下、第5実施形態に係るウェハーレンズの製造装置について説明する。なお、本実施形態は、第1実施形態の製造装置の変形例であり、特に説明しない部分又は事項は、第1実施形態の場合と同様である。
このように、本実施の形態に係るウェハーレンズ製造装置は、片面に光学素子部を有する樹脂層を形成する場合のみならず、両面に形成する場合にも適用可能であり、より汎用性を有したものとすることができる。
Claims (12)
- 透光性を有する平板状の基板の少なくとも一方の面上に、成形型を用いた転写により複数の光学面を有する樹脂層を形成するウェハーレンズの製造方法であって、
前記基板上に前記成形型により前記複数の光学面を成形する際、
前記成形型とは別体で、前記基板を支持する基板支持部の側及び前記成形型を支持する型支持部の側の少なくとも一方の側に設けられ、前記基板支持部と前記型支持部とが近接した際に他方の側に突き当たる突き当て部材を有する位置決め装置を用いて、前記成形型と前記基板との間隔を調節するウェハーレンズの製造方法。 - 前記位置決め装置による前記成形型と前記基板との間隔が、前回に形成されたウェハーレンズの寸法誤差に基づいて修正される、請求項1に記載のウェハーレンズの製造方法。
- 前記位置決め装置は、前記型支持部の側及び前記基板支持部の側の双方に設けられ、前記型支持部の側に設けられた第1の突き当て部材と、前記基板支持部の側に設けられた第2の突き当て部材とを有し、
前記第1の突き当て部材と前記第2の突き当て部材との少なくとも一方の突出量を変化させることによって前記成形型と前記基板との間隔を調節する、請求項1又は2に記載のウェハーレンズの製造方法。 - 透光性を有する平板状の基板を支持する基板支持部と、
前記基板に対向して配置され、前記基板の一方の面上に複数の光学面を有する樹脂層を転写により成形するための成形型を支持する型支持部と、
前記基板支持部と前記型支持部とを近接及び離間させる昇降装置と、
前記成形型とは別体で、前記基板支持部の側及び前記型支持部の側の少なくとも一方の側に設けられ、前記昇降装置により前記基板支持部と前記型支持部とが近接させられた際に、他方の側に突き当てられて前記成形型と前記基板との間隔を調節する突き当て部材を有する位置決め装置と
を有するウェハーレンズの製造装置。 - 前記位置決め装置は、前記型支持部の側に設けられ、前記突き当て部材は、前記基板の配置の基準となる所定面に突き当てられる、請求項4に記載のウェハーレンズの製造装置。
- 前記突き当て部材は、前記基板を背後から支持するバックプレートの表面に突き当てられる、請求項5に記載のウェハーレンズの製造装置。
- 前記位置決め装置は、前記基板支持部の側に設けられ、前記突き当て部材は、前記成形型を構成する樹脂層を避けた所定面に突き当てられる、請求項4に記載のウェハーレンズの製造装置。
- 前記位置決め装置は、前記基板及び前記成形型の周囲3か所に配置され、前記突き当て部材の突出量を個別に変更可能にする、請求項4から7までのいずれか一項に記載のウェハーレンズの製造装置。
- 前記位置決め装置は、前記型支持部の側及び前記基板支持部の側の双方に設けられ、前記型支持部の側に設けられた第1の突き当て部材と、前記基板支持部の側に設けられた第2の突き当て部材とを有し、前記第1の突き当て部材と前記第2の突き当て部材とを互いに突き合わせる、請求項4に記載のウェハーレンズの製造装置。
- 前記位置決め装置は、前記第1の突き当て部材と前記第2の突き当て部材との少なくとも一方の突出量を変化させることによって前記成形型と前記基板との間隔を変更する、請求項9に記載のウェハーレンズの製造装置。
- 請求項1に記載のウェハーレンズの製造方法によって製造したウェハーレンズを個片化することによって得た光学素子。
- 請求項4に記載のウェハーレンズの製造装置によって製造したウェハーレンズを個片化することによって得た光学素子。
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CN201280025208.8A CN103561925A (zh) | 2011-05-26 | 2012-05-23 | 晶片透镜的制造方法、晶片透镜的制造装置及光学元件 |
JP2013516416A JPWO2012161220A1 (ja) | 2011-05-26 | 2012-05-23 | ウェハーレンズの製造方法、ウェハーレンズの製造装置及び光学素子の製造方法 |
US14/118,822 US20140084502A1 (en) | 2011-05-26 | 2012-05-23 | Method for producing wafer lens, device for producing wafer lens, and method for producing optical element |
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JP2006519711A (ja) * | 2003-01-29 | 2006-08-31 | ヘプタゴン・オサケ・ユキチュア | 構造化された素子の製造 |
JP2009530136A (ja) * | 2006-03-20 | 2009-08-27 | ヘプタゴン・オサケ・ユキチュア | スペーサ要素を組込んだツールを用いた微細構造素子の成型 |
JP2011043605A (ja) * | 2009-08-20 | 2011-03-03 | Konica Minolta Opto Inc | ウエハレンズ、ウエハレンズ積層体、ウエハレンズの製造方法、撮像レンズ及び撮像レンズの製造方法 |
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US20140084502A1 (en) | 2014-03-27 |
JPWO2012161220A1 (ja) | 2014-07-31 |
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