KR20090054633A - Device and method for fabricating compound lens - Google Patents

Device and method for fabricating compound lens Download PDF

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Publication number
KR20090054633A
KR20090054633A KR1020070121407A KR20070121407A KR20090054633A KR 20090054633 A KR20090054633 A KR 20090054633A KR 1020070121407 A KR1020070121407 A KR 1020070121407A KR 20070121407 A KR20070121407 A KR 20070121407A KR 20090054633 A KR20090054633 A KR 20090054633A
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KR
South Korea
Prior art keywords
photocurable resin
ultraviolet
irradiation speed
center
irradiation
Prior art date
Application number
KR1020070121407A
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Korean (ko)
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KR100938643B1 (en
Inventor
임지석
최민석
Original Assignee
주식회사 옵토메카
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Priority to KR20070121407A priority Critical patent/KR100938643B1/en
Priority to PCT/KR2008/006975 priority patent/WO2009069940A1/en
Publication of KR20090054633A publication Critical patent/KR20090054633A/en
Application granted granted Critical
Publication of KR100938643B1 publication Critical patent/KR100938643B1/en

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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
    • B29C35/0288—Controlling heating or curing of polymers during moulding, e.g. by measuring temperatures or properties of the polymer and regulating the process
    • 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
    • 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
    • B29C35/0894—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using transparant moulds provided with masks or diaphragms
    • 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
    • B29D11/00403—Producing compound lenses
    • 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
    • B29D11/00432—Auxiliary operations, e.g. machines for filling the moulds
    • B29D11/00442—Curing the lens material
    • 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
    • B29C2035/0827—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using UV radiation
    • 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

Abstract

The present invention, the mold for molding the photocurable resin applied to the base material, the ultraviolet light source for irradiating the ultraviolet ray to the photocurable resin, and the irradiation speed of the ultraviolet ray irradiated to the photocurable resin according to the position of the photocurable resin It provides a composite lens molding apparatus comprising a irradiation speed adjusting unit for adjusting. Preferably, the irradiation speed control unit, so that the irradiation speed of the ultraviolet radiation irradiated to the center of the photocurable resin is larger than the irradiation speed of the ultraviolet radiation irradiated to the peripheral portion of the photocurable resin. Preferably, the mold has a free space outside the outer circumference of the photocurable resin. According to one embodiment, the irradiation speed control unit is a mask, the mask has a higher UV transmittance at the center than the peripheral portion. According to another embodiment, the irradiation speed adjusting unit is an aperture that enlarges the ultraviolet irradiation region from the center of the photo-curable resin to the periphery. According to another embodiment, the irradiation speed adjusting unit is an optical system capable of changing the focal length. According to another embodiment, the irradiation speed control unit, the radiation region of the ultraviolet radiation from the central portion of the photo-curable resin to the peripheral portion.

Description

Compound lens forming apparatus and method {DEVICE AND METHOD FOR FABRICATING COMPOUND LENS}

The present invention relates to a compound lens molding apparatus and method, and more particularly, to a molding apparatus and method capable of providing a high quality compound lens by effectively controlling the shrinkage generated during lens molding.

An aspherical composite lens in which an aspherical resin layer is formed on a base material by using a glass lens as a base material has an advantage of achieving excellent optical performance in a relatively inexpensive process.

Such an aspherical composite lens is a method of manufacturing a lens by using a glass having a high refractive index as a base material to adhere the aspherical resin layer in the form of a thin film through transfer.

1 shows a conventional molding method for manufacturing a composite lens.

First, the glass lens base material 4 is seated in the holder 2 for caution and fixation. After precisely discharging a predetermined photocurable resin to the aspherical mold 1 or the base material 4 which has been precisely processed, and careful adjustment and height adjustment between the base material 4 and the aspherical mold 1, the photocurable resin is formed from the base material and the aspherical surface. Fill the cavity between the molds. In this state, when the ultraviolet ray is irradiated through the base material to cure the photocurable resin 3, the shape of the aspherical mold 1 is transferred to the surface of the base material 4, thereby forming the composite lens.

The above process is carried out at normal pressure and room temperature, so the equipment can be simplified, and the durability of the mold is excellent, so that a high-precision composite lens can be made inexpensively. However, depressions in pores or surfaces are more likely to appear as defects.

In particular, when the cavity of the mold is closed, that is, when there is no free space outside the outer circumference of the photocurable resin, the above-mentioned defects are more likely to occur.

In general, the thick portion of the photocurable resin takes a relatively long time to cure compared to the thin portion. As a result, when the thickness of the peripheral portion of the photocurable resin is thin according to the shape of the compound lens, the photocurable resin, which is trapped in the center by the cured resin after the peripheral portion is cured first, is cured. It is more likely to occur.

These defects vary depending on the shape of the glass lens base material or the thickness of the photocurable resin. For this reason, in forming a composite lens, there is a problem in stably producing a high quality aspherical resin composite lens, which lowers the yield and has a problem that is difficult to apply to mass production.

The present invention has been made in order to solve the above problems, the present invention is not affected by the shape of the base material or the shape of the photo-curable resin compounded to effectively produce a high-precision composite lens by curing the photo-curable resin It is an object to obtain a lens manufacturing apparatus and method.

In order to achieve the above object, the present invention provides a mold for molding a photocurable resin applied to a base material, an ultraviolet light source for irradiating the ultraviolet light to the photocurable resin, and the irradiation speed of the ultraviolet light irradiated to the photocurable resin. It provides a compound lens molding apparatus comprising an irradiation speed adjusting unit for adjusting according to the position of the photocurable resin.

Hardening starts from the center of the photocurable resin, and the volume reduction caused by shrinkage is caused by uncured photocurable resins in the periphery of the photocursant toward the center, causing pores inside or recessed to the inside of the effective diameter of the composite lens. It is possible to manufacture a high-precision composite lens by preventing the shrinkage.

Preferably, the irradiation speed control unit, so that the irradiation speed of the ultraviolet radiation irradiated to the center of the photocurable resin is larger than the irradiation speed of the ultraviolet radiation irradiated to the peripheral portion of the photocurable resin.

Preferably, the mold has a free space outside the outer circumference of the photocurable resin.

According to one embodiment, the irradiation speed control unit is a mask, the mask has a higher UV transmittance at the center than the peripheral portion.

According to another embodiment, the irradiation speed adjusting unit is an aperture that enlarges the ultraviolet irradiation region from the center of the photo-curable resin to the periphery.

According to another embodiment, the irradiation speed adjusting unit is an optical system capable of changing the focal length.

According to another embodiment, the irradiation speed control unit, the radiation region of the ultraviolet radiation from the central portion of the photo-curable resin to the peripheral portion.

In addition, the present invention, the first step of applying a photo-curable resin to the base material; A second step of molding the photocurable resin applied to the base material using a mold, and a third step of irradiating the ultraviolet ray to the photocurable resin, and adjusting the irradiation speed of the ultraviolet ray according to the position of the photocurable resin. It provides a composite lens molding method comprising a.

According to one embodiment, the third step, the intensity of the ultraviolet radiation irradiated to the center of the photocurable resin is adjusted to be greater than the intensity of the ultraviolet radiation irradiated to the peripheral portion of the photocurable resin.

According to another embodiment, the third step is to enlarge the ultraviolet irradiation region from the center of the photo-curable resin to the periphery.

According to yet another embodiment, the third step moves the ultraviolet irradiation region from the center of the photo-curable resin to the periphery.

According to the above configuration, in the compound lens molding using the photocurable resin, there is an effect of reducing defects that may occur in the lens surface or the inside of the lens.

That is, by controlling the shrinkage of the photocurable resin effectively, most of the shrinkage occurs at the periphery of the photocurable resin, thereby producing a high quality composite lens.

In addition, by effectively controlling the position where the shrinkage occurs, there is an effect of reducing the shape error.

2 is a view schematically showing a compound lens molding apparatus according to a first embodiment of the present invention.

As shown, the composite lens molding apparatus of the present invention comprises a mold 1, an ultraviolet light source, and an irradiation speed control unit.

The mold molds the photocurable resin applied to the base material.

Ultraviolet light source irradiates ultraviolet ray to photocurable resin.

The irradiation speed control unit adjusts the irradiation speed of ultraviolet rays according to the position of the photocurable resin.

In the embodiment of Fig. 2, a mask 5a is used as the irradiation speed adjusting unit.

The holder 2 has a circular smooth surface that can accommodate the processed glass lens base material. The outer diameters of the holder 2 and the base material 4 should be manufactured so that the center of the holder 2 and the center of the base material 4 coincide with each other.

As the base material, various shapes, such as concave lenses, aspherical lenses, flat bodies or free curved bodies, may be selected in addition to the convex lenses shown.

The base material 4 is seated on the holder 2 to be careful between the two, and a predetermined amount of photocurable resin is dropped on the base material.

2 illustrates an embodiment in which a photocurable resin is applied and molded on one surface of a base material, but is not necessarily limited thereto. For example, an embodiment in which photocurable resins are applied and molded on both surfaces of a base material is also possible.

Thereafter, in a state where care is taken with the holder 2, the aspherical mold 1 is lowered until the desired height is reached. At this time, the photocurable resin 3 which has been dropped is filled between the base material 4 and the mold 1.

It is preferable that the structure in which the base material 4 and the mold 1 are not closed, that is, the mold 1 has a free space on the outer circumference of the photocurable resin.

In order to produce an aspherical compound lens, the transfer surface of the mold in contact with the photocurable resin becomes an aspherical surface. However, in order to produce a compound lens of another shape, the transfer surface of the mold does not necessarily need to be aspherical.

In the state provided with the above conditions, ultraviolet light is irradiated to the photocurable resin through the mask 5a and the base material 4 having a density gradient from the ultraviolet light source, and the photocurable resin is adhered to the base material 4 so that the aspheric composite The lens is molded. At this time, due to the difference in intensity, hardening proceeds to the periphery, starting from the center of high intensity of ultraviolet rays, thereby preventing defects by compensating the shrinkage of the center of the resin.

In the illustrated embodiment, an embodiment of curing the photocurable resin using ultraviolet rays transmitted from the base material side by irradiating ultraviolet rays from the base material side using a base material through which ultraviolet rays are transmitted is not limited thereto.

The irradiation speed adjusting unit preferably adjusts the irradiation speed of ultraviolet rays irradiated to the center of the photocurable resin to be larger than the irradiation rate of ultraviolet rays irradiated to the periphery of the photocurable resin.

Herein, the irradiation speed means (total amount of irradiated ultraviolet rays / irradiation time), and 'irradiation time' means elapsed time from the time of initiation of ultraviolet irradiation to a certain point, and 'total amount of irradiated ultraviolet rays' is irradiated. It means the total light amount of ultraviolet rays irradiated at a predetermined position during the time.

Ultraviolet light considered in the irradiation speed means effective ultraviolet light for curing the photocurable resin, and the ultraviolet light irradiated after the curing is completed does not affect the curing speed, and thus does not affect the irradiation speed. For example, when the central portion has already been cured but the peripheral portion has not yet been cured, even if ultraviolet rays are radiated through the entire photocurable resin, the ultraviolet rays irradiated to the central portion are not considered, and only the ultraviolet rays irradiated to the peripheral portions are considered.

The curing rate of the photocurable resin is controlled by varying the distribution of the irradiation speed of ultraviolet rays, that is, the total amount of irradiated ultraviolet rays / total time when ultraviolet rays are irradiated.

The irradiation speed controller is located in front of the light propagation direction from the ultraviolet light source. That is, in the illustrated embodiment, the irradiation speed control unit is located between the ultraviolet light source and the base material.

In this embodiment, the mask used as the irradiation speed adjusting portion has a higher UV transmittance at the center portion than the peripheral portion. The mask 5a adjusts the distribution of the intensity, so that the intensity of the ultraviolet rays irradiated to the center portion is larger than the intensity of the ultraviolet rays irradiated to the peripheral portion.

Looking at the composite lens molding method of the present invention sequentially, first the first step of applying the photocurable resin to the base material is performed, and then the second step of forming the photocurable resin applied to the base material using a mold is performed Then, irradiate the ultraviolet ray to the photocurable resin, and performs a third step of adjusting the irradiation speed of the ultraviolet ray according to the position of the photocurable resin.

Through such a molding method, it is possible to prevent shrinkage of the resin occurring in the inside of or near the effective diameter affecting the optical performance, thereby manufacturing a composite lens using a photocurable resin having a high yield.

According to an embodiment, the mask may have a plurality of holes. In this case, ultraviolet rays are irradiated to the photocurable resin through holes from the ultraviolet light source. The holes are denser in the center than in the periphery of the mask. Thus, the mask has more ultraviolet transmission at the center than at the periphery.

According to another embodiment, the mask may include a transparent plate through which ultraviolet rays can pass and an opaque pattern through which ultraviolet rays cannot pass. The opaque pattern is formed on the transparent plate. As the transparent plate, for example, a glass substrate can be used. For example, the annular opaque pattern is denser at the periphery than at the center of the mask. Thus, the mask has more ultraviolet transmission at the center than at the periphery.

In addition, as a mask, a gray scale mask in which a pattern with a greater UV transmittance at a central part than a peripheral part may be used.

3 is a view schematically showing a compound lens molding apparatus according to a second embodiment of the present invention.

In FIG. 3, after the base material 4 is seated on the holder 2, and a predetermined amount of photocurable resin is dropped, the process of being careful between the aspherical mold 1 and the base material 4 is performed as in FIG. 2. Proceed.

Instead of the mask 5a, the aperture speed is adjusted using the diaphragm 5b.

Specifically, the ultraviolet light entering the base material 4 enters through the diaphragm 5b. Initially, the diaphragm is enlarged by the aperture lever 6 as the process proceeds and the exposure proceeds with a very small opening. Due to the action of the diaphragm 5b, curing of the photocurable resin occurs from the center toward the periphery, thereby forming an aspherical composite lens using the photocurable resin.

That is, the diaphragm adjusts the position at which the exposure is performed. By expanding the irradiation region of ultraviolet rays from the center to the peripheral portion, the irradiation speed of the ultraviolet rays is adjusted to be larger at the central portion than the peripheral portion.

4 and 5 are views schematically showing the operation of the compound lens molding apparatus according to the third embodiment of the present invention.

As shown, the optical system 5c capable of changing the focal length is used as the irradiation speed adjusting part of the compound lens molding apparatus of the third embodiment.

The optical system 5c initially adjusts the focal length to the center of the photocurable resin, and adjusts the focal length gradually away from the photocurable resin with time.

4 shows an operation example in which the focal length is initially located at the center of the photocurable resin, and the focal length becomes longer as time passes. (f 1- > f 2 )

On the other hand, FIG. 5 shows an operation example in which the focal length is initially located at the center of the photocurable resin, and the focal length is shortened over time. (f 1- > f 2 ')

Through this, the irradiation region of ultraviolet rays is extended from the center of the photocurable resin to the periphery, and the irradiation speed of the ultraviolet rays irradiated to the center of the photocurable resin is greater than the irradiation rate of the ultraviolet rays irradiated to the peripheral part of the photocurable resin.

As the optical system 5c, for example, a zoom lens device can be used.

Although not shown, as another embodiment, an irradiation speed adjusting unit for moving the ultraviolet irradiation region from the center to the periphery may be used. In other words, ultraviolet rays are initially irradiated only at the center portion, and gradually the irradiation region is moved to the peripheral portion so that the ultraviolet rays are irradiated only at the peripheral portion.

It is preferable that the movement of the irradiation area is made radial.

1 is a view schematically showing a conventional compound lens molding apparatus.

2 is a view schematically showing a compound lens molding apparatus according to a first embodiment of the present invention.

3 is a view schematically showing a compound lens molding apparatus according to a second embodiment of the present invention.

4 and 5 are views schematically showing the operation of the compound lens molding apparatus according to the third embodiment of the present invention.

Claims (25)

A mold for molding the photocurable resin applied to the base material, An ultraviolet light source for irradiating ultraviolet rays to the photocurable resin, And a radiation speed adjusting unit configured to adjust an irradiation speed of ultraviolet rays irradiated to the photocurable resin according to the position of the photocurable resin. The method of claim 1, The irradiation speed control unit is a composite lens molding apparatus, characterized in that for controlling the irradiation speed of the ultraviolet radiation irradiated to the center of the photocurable resin is larger than the irradiation speed of the ultraviolet radiation irradiated to the peripheral portion of the photocurable resin. The method according to claim 1 or 2, And a transfer surface of the mold in contact with the photocurable resin is an aspherical surface. The method according to claim 1 or 2, The mold has a composite lens molding apparatus, characterized in that it has a free space on the outer periphery of the photo-curable resin. The method according to claim 1 or 2, Ultraviolet light penetrates the base material and is irradiated onto the photocurable resin. The method according to claim 1 or 2, The irradiation speed control unit is a composite lens molding apparatus, characterized in that located in front of the light traveling direction from the ultraviolet light source. The method according to claim 1 or 2, The irradiation speed control unit is a mask, the mask is a composite lens molding apparatus, characterized in that the UV transmittance is greater in the center than the peripheral portion. The method of claim 7, wherein And the mask has a plurality of holes, and the holes are denser at the central portion than at the periphery. The method of claim 7, wherein The mask has a transparent plate and an opaque pattern formed on the transparent plate, And the opaque pattern is denser at the periphery than at the center. The method of claim 7, wherein And the mask is a gray scale mask. The method according to claim 1 or 2, The irradiation speed control unit is a composite lens molding apparatus, characterized in that the cooker for expanding the irradiation area of the ultraviolet rays from the center of the photo-curable resin to the periphery. The method according to claim 1 or 2, The irradiation speed control unit is a composite lens molding apparatus, characterized in that the optical system capable of changing the focal length. The method of claim 12, The optical system is a compound lens molding apparatus, characterized in that for adjusting the focal length gradually away from the photocurable resin. The method of claim 12, The optical system is a compound lens molding apparatus, characterized in that the zoom lens device. The method according to claim 1 or 2, The irradiation speed control unit is a composite lens molding apparatus, characterized in that for moving the irradiation region of the ultraviolet ray from the center of the photo-curable resin to the peripheral portion. A first step of applying photocurable resin to the base material; A second step of molding the photocurable resin applied to the base material by using a mold; And irradiating the ultraviolet ray to the photocurable resin, and adjusting the irradiation speed of the ultraviolet ray according to the position of the photocurable resin. The method of claim 16, The third step, the composite lens molding method characterized in that the irradiation speed of the ultraviolet radiation irradiated to the center of the photocurable resin is adjusted to be larger than the irradiation speed of the ultraviolet radiation irradiated to the peripheral portion of the photocurable resin. The method according to claim 16 or 17, The base material is a compound lens molding method, characterized in that the glass lens. The method according to claim 16 or 17, And said base material is a concave lens, a convex lens, an aspherical lens, a planar body, or a free-formed surface. The method according to claim 16 or 17, The second step, the compound lens molding method, characterized in that for molding the photo-curable resin applied to at least one surface of the base material. The method according to claim 16 or 17, And a transfer surface of the mold in contact with the photocurable resin is an aspherical surface. The method according to claim 16 or 17, And said mold has a free space outside the outer circumference of said photocurable resin. The method according to claim 16 or 17, In the third step, the intensity of ultraviolet light irradiated to the center of the photocurable resin is adjusted to be greater than the intensity of ultraviolet light irradiated to the periphery of the photocurable resin. The method according to claim 16 or 17, The third step is a composite lens molding method, characterized in that to extend the ultraviolet irradiation region from the center of the photo-curable resin to the periphery. The method according to claim 16 or 17, The third step is a composite lens molding method, characterized in that for moving the ultraviolet irradiation region from the center of the photo-curable resin to the periphery.
KR20070121407A 2007-11-27 2007-11-27 Device and method for fabricating compound lens KR100938643B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR20070121407A KR100938643B1 (en) 2007-11-27 2007-11-27 Device and method for fabricating compound lens
PCT/KR2008/006975 WO2009069940A1 (en) 2007-11-27 2008-11-26 Device and method for fabricating lens

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Application Number Priority Date Filing Date Title
KR20070121407A KR100938643B1 (en) 2007-11-27 2007-11-27 Device and method for fabricating compound lens

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KR100938643B1 KR100938643B1 (en) 2010-01-28

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DE102009055088B4 (en) 2009-12-21 2015-04-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method for producing a structure, optical component, optical layer stack
DE102009055080B4 (en) 2009-12-21 2019-11-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method and device for producing a structure, molding tool
DE102009055083B4 (en) 2009-12-21 2013-12-05 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Optical layer stack and method for its production
CN103009649B (en) * 2012-12-07 2015-08-12 中兴通讯股份有限公司 Machining eyeglass method, eyeglass and electronic equipment thereof
DE102013207243B4 (en) * 2013-04-22 2019-10-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. DEVICE AND METHOD FOR PRODUCING A STRUCTURE OF CURABLE MATERIAL BY IMPREGNATION
CN104570262B (en) * 2013-10-25 2017-05-10 玉晶光电(厦门)有限公司 Optical imaging lens
KR102146934B1 (en) * 2018-11-14 2020-08-21 한국광기술원 Apparatus and Method for Producing Lens

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JP2003142722A (en) * 2001-11-01 2003-05-16 Nippon Telegr & Teleph Corp <Ntt> Photoelectric transducer
JP2006142722A (en) * 2004-11-22 2006-06-08 Seiko Precision Inc Manufacturing method and manufacturing equipment for resin-combined lens

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101501073B1 (en) * 2012-01-02 2015-03-10 홀텍 크리스탈 컴퍼니 리미티드 Laser process method and workpiece formed by laser process method thereof

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