KR101219854B1 - Lens unit, method of fabricating the same and camera module having the same - Google Patents

Abstract

A lens unit, a method of manufacturing the same, and a camera module including the same are disclosed. The lens unit includes a lens unit including a curved surface; A support part disposed around the lens part; And an opaque spacer formed integrally with the support.

Description

Lens unit, manufacturing method thereof, and camera module including the same {LENS UNIT, METHOD OF FABRICATING THE SAME AND CAMERA MODULE HAVING THE SAME}

Embodiments relate to a lens unit, a manufacturing method thereof, and a camera module including the same.

Recently, a mobile device such as a mobile phone equipped with a camera has come to be able to shoot still images and videos anytime and anywhere.

In addition, the performance of a camera is gradually improving for high resolution and high quality photographing, and a camera module having an auto focus adjustment function, a macro function and an optical zoom function is mounted.

Embodiments can be easily manufactured, has a high heat resistance, and provides a lens unit having an improved optical performance, a method of manufacturing the same, and a camera module including the same.

Lens unit according to the embodiment includes a lens unit including a curved surface; A support part disposed around the lens part; And an opaque spacer formed integrally with the support.

Method of manufacturing a lens unit according to the embodiment comprises the steps of forming a preliminary lens array substrate including a plurality of lens units; Disposing the preliminary lens array substrate inside a second mold; Injecting a second resin composition into the second mold to form a resin layer integrally with the preliminary lens array substrate to form a lens array substrate; And cutting the lens array substrate.

The camera module according to the embodiment includes a first lens portion including a first curved surface, a first support portion disposed around the first lens portion, and a first spacer formed integrally with the first support portion, and including an opaque first spacer. A first lens unit; A second lens unit disposed on the first lens unit and adhered to the first spacer; And a sensor unit disposed below the first lens unit.

The lens unit according to the embodiment includes an opaque spacer formed integrally with the support. In particular, the lens unit according to the embodiment may form the lens portion, the support portion, and the spacer by a dual injection process or the like.

Therefore, the lens unit according to the embodiment can have an improved strength and can be easily formed. In particular, the spacer may comprise the same material as the support and the light blocking material. Since the spacer and the support comprise the same material and are integrally formed, the lens unit according to the embodiment has further improved strength.

In addition, since the spacer is opaque, it is possible to block unnecessary light and to remove noise. That is, the spacer separates the lens units from each other and at the same time blocks unnecessary light.

Therefore, the lens unit and the camera module including the same according to the embodiment may not include a stop for performing a light blocking function.

Therefore, the lens unit and the camera module including the same according to the embodiment have a simple structure and have improved optical performance.

1 is an exploded perspective view illustrating a camera module according to an embodiment.
2 is a perspective view illustrating a camera module according to an embodiment.
3 is a cross-sectional view taken along line AA ′ of FIG. 2.
4 is a cross-sectional view illustrating a cross section of the first lens unit.
5 is a cross-sectional view illustrating a cross section of the second lens unit.
5 to 8 are views illustrating a process of manufacturing a camera module according to an embodiment.
9 and 10 are views illustrating a process of bonding the camera module to the main circuit board according to the embodiment.

In the description of the embodiments, each lens, unit, part, hole, protrusion, groove or layer, etc., is placed on or under the "on" of each lens, unit, part, hole, protrusion, groove, or layer, etc. And " under " include both " directly " or " indirectly " through other components. . In addition, the upper or lower reference of each component is described with reference to the drawings. The size of each component in the drawings may be exaggerated for the sake of explanation and does not mean the size actually applied.

1 is an exploded perspective view illustrating a camera module according to an embodiment. 2 is a perspective view illustrating a camera module according to an embodiment. FIG. 3 is a cross-sectional view taken along line AA ′ in FIG. 2. 4 is a cross-sectional view showing a cross section of the lens unit. 5 is a cross-sectional view illustrating a cross section of the second lens unit.

1 to 5, the camera module according to the embodiment includes a lens assembly 20 and a sensor unit 10.

The lens assembly 20 improves the characteristics of light incident from the outside and exits the sensor unit 10. The lens assembly 20 may collect the incident light. The lens assembly 20 includes a first lens unit 100, a second lens unit 200, an optical filter 300, and a third spacer 400.

The first lens unit 100 improves characteristics of light incident through the second lens unit 200. As illustrated in FIGS. 3 and 4, the first lens unit 100 includes a first lens unit 110, a first support unit 120, and a first spacer 130.

The first lens unit 110 has a curved surface with a predetermined curvature. In more detail, the first lens unit 110 has a convex surface and a concave surface facing each other. The first lens unit 110 refracts incident light. The first lens unit 110 has a diameter of about 0.5mm to 3mm.

The first support part 120 is disposed around the first lens part 110. In more detail, the first support part 120 surrounds the first lens part 110. That is, it extends laterally from the first lens unit 110. The first support part 120 supports the first lens part 110.

The first support part 120 may have a plate shape. The first support part 120 is integrally formed with the first lens part 110. The first support part 120 may have a rectangular shape when viewed in a plan view. The width of the first support portion 120 may be about 5 mm to about 10 mm.

The first spacer 130 is disposed below the first support part 120. The first spacer 130 is integrally formed with the first support part 120. That is, the first spacer 130 may be directly bonded to the first support part 120.

The first spacer 130 is opaque. The first spacer 130 is interposed between the first support part 120 and the optical filter 300. The first spacer 130 is attached to an upper surface of the optical filter 300. The side surface of the first spacer 130 may be disposed on the same plane as the side surface of the first support portion 120.

The first spacer 130 includes a first transmission hole 131. The first transmission hole 131 corresponds to the first lens unit 110. The center of the first transmission hole 131 may be substantially coincident with the center of the center of the first lens unit 110.

An inner surface of the first transmission hole 131 may be inclined with respect to the upper surface of the first support part 120. In this case, the inner surface of the first transmission hole 131 may cross at an angle of about 40 ° to 60 ° with respect to the upper surface of the first support part 120.

The direction in which the inner surface of the first transmission hole 131 is inclined may be substantially the same as the path of incident light. Therefore, the angle of the inner surface of the first transmission hole 131 varies depending on the optical design of the first lens unit 110.

The diameter of the first transmission hole 131 may gradually increase as the diameter of the first transmission hole 131 moves away from the first lens unit 100. Unlike this, the diameter of the first transmission hole 131 may gradually decrease as the diameter of the first transmission hole 131 moves away from the first lens unit 100.

An upper outer portion of the first transmission hole 131 may correspond to a boundary between the first lens unit 110 and the first support unit 120.

Since the inner surface of the first transmission hole 131 is inclined, the light passing through the first lens unit 110 may be effectively incident on the optical filter 300. Particularly, since the upper outer periphery of the first transmission hole 131 corresponds to the boundary between the first lens unit 110 and the first support unit 120, unnecessary light causing noise is effectively prevented from the first spacer 130. Can be removed.

The first lens unit 100 includes plastic. In more detail, the first lens unit 100 may be made of a polymer. The first lens unit 100 may be made of plastic having high heat resistance.

The plastic used as the first lens unit 100 hardly deforms even at a temperature of about 200 ° C to about 350 ° C. For example, the glass transition temperature of the plastic used as the first lens unit 100 may be about 130 ° C to about 250 ° C. Preferably, the glass transition temperature of the plastic used as the first lens unit 100 may be about 200 ℃ to about 250 ℃. In addition, the melting point of the plastic used as the first lens unit 100 may be about 350 ℃ to about 450 ℃.

The first lens unit 110 and the first support unit 120 are transparent and are formed of the same material. Thermoplastic resin, thermosetting resin, or photocurable resin may be used as the first lens unit 110 and the first support unit 120. Examples of the material used as the first lens unit 110 and the first support unit 120 include carbonate resins such as polycarbonate (PC), acrylic resins such as polymethylmethacrylate (PMMA), and the like. Can be mentioned.

The first spacer 130 includes plastic. The first spacer 130 may include the same material as the first lens unit 110 and the first support unit 120. For example, the first spacer 130 may include colored dyes such as black dyes, and plastics used as the first lens unit 110 and the first support unit 120.

Alternatively, a material different from the first lens unit 110 and the first support unit 120 may be used as the first spacer 130.

Thermoplastic resin, thermosetting resin or photocurable resin may be used as the first spacer 130. Examples of the material used as the first spacer 130 are polyether ether ketone in addition to carbonate resin such as polycarbonate (PC) or acrylic resin such as polymethylmethacrylate (PMMA). PEEK, polyethylene naphthalate (PEN), polyimide (PI), liquid crystal polymer, and the like.

The second lens unit 200 is disposed on the first lens unit 100. The second lens unit 200 improves the characteristics of light incident from the outside and exits to the first lens unit 100.

As shown in FIGS. 3 and 5, the second lens unit 200 includes a second lens unit 210, a second support unit 220, a second spacer 230, and a light blocking unit 240. .

The second lens unit 210 has a curved surface with a predetermined curvature. In more detail, the second lens unit 210 has convex and concave surfaces facing each other. The second lens unit 210 refracts incident light. The second lens unit 210 has a diameter of about 0.5 mm to 3 mm.

The second support part 220 is disposed around the second lens part 210. In more detail, the second support part 220 surrounds the second lens part 210. That is, it extends laterally from the second lens unit 210. The second support part 220 supports the second lens part 210.

The second support portion 220 may have a plate shape. The second support part 220 is integrally formed with the second lens part 210. The second support portion 220 may have a rectangular shape when viewed in a plan view. The width of the second support 220 may be about 5 mm to about 10 mm.

The second spacer 230 is disposed below the second support 220. The second spacer 230 is integrally formed with the second support part 220. That is, the second spacer 230 may be directly bonded to the second support portion 220.

The second spacer 230 is opaque. The second spacer 230 is interposed between the second support portion 220 and the first lens unit 100. The second spacer 230 is attached to an upper surface of the first lens unit 100. The side surface of the second spacer 230 may be disposed on the same plane as the side surface of the second support portion 220.

The second spacer 230 includes a second transmission hole 231. The second transmission hole 231 corresponds to the second lens unit 210. The center of the second transmission hole 231 may substantially coincide with the center of the center of the second lens unit 210.

The inner side surface of the second transmission hole 231 may be inclined with respect to the upper surface of the second support portion 220. In this case, an inner surface of the second transmission hole 231 may cross at an angle of about 40 ° to 60 ° with respect to the upper surface of the second support part 220.

The direction in which the inner surface of the second transmission hole 231 is inclined may be substantially the same as the path of incident light. Therefore, the angle of the inner side surface of the second transmission hole 231 depends on the optical design of the second lens unit 210.

The diameter of the second transmission hole 231 may gradually increase as it moves away from the second lens unit 200. Unlike this, the diameter of the second transmission hole 231 may gradually decrease as the second lens unit 200 moves away from the second lens unit 200.

An upper outer portion of the second transmission hole 231 may correspond to a boundary between the second lens portion 210 and the second support portion 220. In addition, a lower outer edge of the second transmission hole 231 may correspond to a boundary between the first lens unit 110 and the first support unit 120.

Since the inner surface of the second transmission hole 231 is inclined, the light passing through the second lens unit 210 may be effectively incident on the first lens unit 110. In particular, an inner surface of the second transmission hole 231 is formed between the boundary of the second lens unit 210 and the second support unit 220 and the first lens unit 110 and the first support unit 120. Since it corresponds to the boundary, unnecessary light causing noise can be effectively removed by the second spacer 230.

The light blocking part 240 is integrally formed with the second support part 220. The light blocking part 240 is disposed on an upper surface of the second support part 220. The light blocking portion 240 is opaque and selectively blocks incident light.

The outer periphery of the light blocking part 240 may coincide with the periphery of the second support part 220. That is, the side surface of the light blocking portion 240 may be disposed on the same plane as the side surface of the second support portion 220 and the side surface of the second spacer 230.

The light blocking part 240 includes a fourth transmission hole 241. The fourth transmission hole 241 corresponds to the first lens unit 110 and the second lens unit 210. The center of the fourth transmission hole 241 may be substantially coincident with the center of the first lens unit 110 and the center of the second lens unit 210.

The inner side surface of the fourth transmission hole 241 may be inclined with respect to the upper surface of the light blocking portion 240. In this case, an inner surface of the fourth transmission hole 241 may cross an angle of about 30 ° to 70 ° with respect to the top surface of the light blocking part 240.

The direction in which the inner surface of the fourth transmission hole 241 is inclined may be substantially the same as the path of incident light. Therefore, the angle of the inner surface of the fourth transmission hole 241 may vary depending on the optical design of the second lens unit 200. The diameter of the fourth transmission hole 241 may gradually increase as the diameter of the fourth transmission hole 241 moves away from the first lens unit 100.

A lower outer portion of the fourth transmission hole 241 may correspond to a boundary between the second lens portion 210 and the second support portion 220.

Since the inner surface of the fourth transmission hole 241 is inclined with respect to the upper surface of the light blocking portion 240, light from the outside may be effectively incident on the second lens portion 210. In particular, since the lower outer periphery of the fourth transmission hole 241 corresponds to the boundary between the second lens unit 210 and the second support unit 220, unnecessary light that causes noise is effectively prevented from the light blocking unit 240. Can be removed by

The second lens unit 200 includes plastic. In more detail, the second lens unit 200 may be made of a polymer. The second lens unit 200 may be made of plastic having high heat resistance.

The plastic used as the second lens unit 200 hardly deforms even at a temperature of about 200 ° C to about 350 ° C. For example, the glass transition temperature of the plastic used as the second lens unit 200 may be about 130 ° C to about 250 ° C. Preferably, the glass transition temperature of the plastic used as the second lens unit 200 may be about 200 ℃ to about 250 ℃. In addition, the melting point of the plastic used as the second lens unit 200 may be about 350 ℃ to about 450 ℃.

The second lens unit 210 and the second support unit 220 are transparent and are formed of the same material. Thermoplastic resin, thermosetting resin, photocurable resin, or the like may be used as the second lens part 210 and the second support part 220. Examples of the material used as the second lens unit 210 and the second support unit 220 include carbonate resins such as polycarbonate (PC), acrylic resins such as polymethylmethacrylate (PMMA), and the like. Can be mentioned.

The second spacer 230 and the light blocking part 240 may include plastic. The second spacer 230 and the light blocking part 240 may include the same material as the second lens part 210 and the second support part 220. For example, the second spacer 230 and the light blocking part 240 may include colored dyes such as black dyes, and plastics used as the second lens part 210 and the second support part 220. Can be.

Alternatively, a material different from the second lens unit 210 and the second support unit 220 may be used as the second spacer 230 and the light blocking unit 240.

Thermoplastic resin, thermosetting resin, photocurable resin, or the like may be used as the second spacer 230 and the light blocking part 240. Examples of the material used as the second spacer 230 include polyether ether ketone in addition to carbonate resin such as polycarbonate (PC) or acrylic resin such as polymethylmethacrylate (PMMA). PEEK, polyethylene naphthalate (PEN), polyimide (PI), liquid crystal polymer, and the like.

Although the camera module including the two lens units 100 and 200 has been described in the present embodiment, the present invention is not limited thereto, and the camera module according to the embodiment may include three or more lens units.

The optical filter 300 is disposed below the first lens unit 100. The optical filter 300 is an infrared filter for filtering infrared light. The optical filter 300 may be formed by coating a material for filtering infrared rays on a plastic substrate or a glass substrate.

The optical filter 300 may filter the light passing through to block infrared rays. The optical filter 300 may be attached to the second spacer 230 and the third spacer 400. In addition, the side surface of the optical filter 300 may be disposed on the same plane as the side surface of the first lens unit 100. That is, side surfaces of the optical filter 300, side surfaces of the first lens unit 100, and side surfaces of the second lens unit 200 may be cut surfaces formed by cutting at the same time.

The third spacer 400 is interposed below the optical filter 300. The third spacer 400 may be interposed between the optical filter 300 and the sensor unit 10. The third spacer 400 is adhered to the bottom surface of the optical filter 300.

The outer periphery of the third spacer 400 may coincide with the outer periphery of the optical filter 300. That is, the side of the third spacer 400 may be disposed on the same plane as the side of the optical filter 300.

The third spacer 400 is opaque and includes plastic. The third spacer 400 may be formed of the same material as the first spacer 130 and the second spacer 230. For example, the third spacer 400 may include colored dyes such as black dyes, and plastics. The third spacer 400 may be made of plastic having high heat resistance.

The plastic used as the third spacer 400 hardly deforms even at a temperature of about 200 ° C to about 350 ° C. For example, the glass transition temperature of the plastic used as the third spacer 400 may be about 130 ° C to about 250 ° C. Preferably, the glass transition temperature of the plastic used as the third spacer 400 may be about 200 ℃ to about 250 ℃. In addition, the melting point of the plastic used as the third spacer 400 may be about 350 ℃ to about 450 ℃.

As the third spacer 400, a thermoplastic resin, a thermosetting resin, a photocurable resin, or the like may be used. Examples of the material used as the third spacer 400 include polyether ether ketone (PEEK), polyethylene naphthalate (PEN), polyimide (PI), or liquid crystal polymer (liquid). plastics having high heat resistance such as crystal polymer).

The third spacer 400 may be entirely formed of plastic. For example, the third spacer 400 may be formed of a single layer film. Alternatively, the third spacer 400 may be composed of a plurality of layers. In this case, all the layers constituting the second spacer 230 may include the plastics described above.

The third spacer 400 includes a third transmission hole 410. The third transmission hole 410 corresponds to the first lens unit 110 and the second lens unit 210. The center of the third transmission hole 410 may be substantially coincident with the center of the first lens unit 110 and the center of the second lens unit 210.

The inner surface of the third transmission hole 410 may be inclined with respect to the upper surface of the third spacer 400. In this case, an inner surface of the third transmission hole 410 may cross at an angle of about 40 ° to 80 ° with respect to the top surface of the third spacer 400.

The direction in which the inner surface of the third transmission hole 410 is inclined may be substantially the same as the path of incident light. Therefore, the angle of the inner surface of the third transmission hole 410 is different depending on the optical design of the first lens unit 100 and the second lens unit 200.

The diameter of the third transmission hole 410 may gradually increase as the diameter of the third transmission hole 410 moves away from the optical filter 300. Unlike this, the diameter of the third transmission hole 410 may gradually decrease as the distance from the optical filter 300 is increased.

Since the inner surface of the third transmission hole 410 is inclined with respect to the upper surface of the third spacer 400, the light passing through the optical filter 300 can be effectively incident on the sensor unit 10. .

The first lens unit 100, the second lens unit 200, the optical filter 300, and the third spacer 400 may be adhered to each other by adhesive layers (not shown).

For example, an adhesive layer may be interposed between the first spacer 130 and the first lens unit 100, and another adhesive layer may be interposed between the first spacer 130 and the second lens unit 200. Can be. That is, the first spacer 130 may be attached to the first lens unit 100 and the second lens unit 200 through the adhesive layers (not shown).

The material used as the adhesive layers has high heat resistance. For example, the material used for the adhesive layers hardly deforms even at temperatures of about 200 ° C to about 350 ° C. The material used as the adhesive layers may be a plastic having a glass transition temperature of about 130 ° C to about 250 ° C. Preferably, a plastic having a glass transition temperature of about 200 ° C to about 250 ° C may be used as the adhesive layers. In addition, a plastic having a melting point of about 350 ° C. to about 450 ° C. may be used.

Examples of the material used as the adhesive layers include an epoxy resin or an acrylic resin.

The sensor unit 10 is disposed below the lens assembly 20. The sensor unit 10 may be attached to the lens assembly 20. The sensor unit 10 senses light incident through the lens assembly 20. The sensor unit 10 includes a sensing chip 11 and a circuit board 12.

The sensing chip 11 converts light incident from the lens assembly 20 into an electrical signal. The sensing chip 11 is connected to the circuit board 12. The sensing chip 11 may include a plurality of semiconductor devices capable of sensing an image. The sensing chip 11 may be a semiconductor chip made of silicon.

The circuit board 12 is electrically connected to the sensing chip 11. The circuit board 12 receives an electrical signal applied from the sensing chip 11. The circuit board 12 may drive the sensing chip 11.

As such, the first spacer 130 is integrally formed with the first support part 120, and the second spacer 230 and the light blocking part 240 are integrally formed with the second support part 220. do. In addition, the first lens unit 100, the second lens unit 200, and the optical filter are adhered to each other. In addition, the sensor unit 10 is adhered to the third spacer 400. Accordingly, the lens assembly 20 has a high mechanical strength.

In particular, the first support part 120 and the first spacer 130 may include the same material and may be integrally formed with each other. In addition, the second support part 220, the second spacer 230, and the light blocking part 240 may include the same material and may be integrally formed with each other.

Accordingly, the first lens unit 100 and the second lens unit 200 have improved strength, and the lens assembly also has improved overall strength. Therefore, the camera module according to the embodiment can maintain high rigidity without using the housing separately.

However, the camera module according to the embodiment may further include a housing accommodating the lens assembly 20 and the sensor unit 10 to further reinforce the strength. The housing may guide the lens assembly 20 and the sensor unit 10. In addition, the housing may be a light shielding cover to block the light incident to the side of the lens assembly 20 and the sensor unit 10.

In addition, the camera module according to the embodiment may include a light shielding film. That is, an opaque material having high heat resistance may be coated on side surfaces of the lens assembly 20 and the sensor unit 10 to form the light blocking film.

The first lens unit 100, the second lens unit 200, the optical filter 300, the third spacer 400, and the adhesive layer have high heat resistance.

Accordingly, the camera module according to the embodiment may have high heat resistance. Accordingly, in the high temperature reflow process for bonding the camera module according to the embodiment to the main substrate or the like, the camera module according to the embodiment is not deformed.

In addition, since the first spacer 130, the second spacer 230, and the third spacer 400 are opaque, they can block unnecessary light and remove noise. That is, the first spacer 130 and the second spacer 230 space the lens units and the optical filter from each other, and simultaneously block unnecessary light.

Accordingly, the camera module according to the embodiment may have a simple structure without requiring an additional member for blocking light such as a stop interposed between the lens units.

6 to 11 are views illustrating a process of manufacturing a camera module according to an embodiment. In the description of the manufacturing method, reference is made to the description of the foregoing camera module. That is, the description of the foregoing camera module may be essentially combined with the description of the manufacturing method.

6 to 9, a first lens array substrate 101 is formed.

As shown in FIG. 6, the first preliminary lens array substrate 101a including the plurality of first lens parts 110 is formed by the first molding mold 31. The first preliminary lens array substrate 101a may be formed by an injection process, a thermosetting process, or a photocuring process.

The material used as the first preliminary lens array substrate 101a is the same as the material used for the first lens unit 110 and the first support unit 120 described above.

As shown in FIG. 7, the first preliminary lens array substrate 101a is disposed in the second molding mold 32. In this case, the second molding mold 32 seals the first lens parts 110.

As shown in FIG. 8, an opaque resin composition is injected into the space 35 between the first preliminary lens array substrate 101a and the second molding mold 32 and cured. Accordingly, an opaque first resin layer 132 is formed under the first preliminary lens array substrate 101a. The material used as the first resin layer 132 is the same as the material used as the first spacer 130 described above.

As shown in FIG. 9, the second molding mold 32 is removed and a first lens array substrate 101 is formed.

10 to 13, a second lens array substrate 201 is formed.

As shown in FIG. 10, the second preliminary lens array substrate 201a including the plurality of second lens parts 210 is formed by the third molding mold 33. The second preliminary lens array substrate 201a may be formed by an injection process, a thermosetting process, or a photocuring process.

The material used as the second preliminary lens array substrate 201a is the same as the material used for the second lens unit 210 and the second support unit 220 described above.

As shown in FIG. 11, the second preliminary lens array substrate 201a is disposed in the fourth molding mold 34. In this case, the fourth molding mold 34 seals the second lens parts 210.

As shown in FIG. 12, an opaque resin composition is injected into the space 36 between the second preliminary lens array substrate 201a and the fourth molding mold 34 and cured. Accordingly, an opaque second resin layer 232 and a third resin layer 242 are formed under the second preliminary lens array substrate 201a. The material used as the opaque second resin layer 232 and the third resin layer 242 is the same as the material used for the second spacer 230 and the light shield 240 described above.

As shown in FIG. 13, the fourth molding mold 34 is removed and a second lens array substrate 201 is formed.

14 and 15, the third film 401, the optical filter plate 301, the first lens array substrate 101, and the second lens array substrate 201 are sequentially stacked and adhered to each other.

The optical filter plate 301 has the same structure as the optical filter 300 described above. That is, the optical filter plate 301 has the same optical characteristics and thickness as the optical filter 300.

The third film 401 includes a plurality of third through holes 410. The third film 401 is formed of the same material as the third spacer 400 in the previous camera module. In addition, the thickness of the third film 401 is the same as the third spacer 400.

In addition, the first lens parts 110, the second lens parts 210, the first through holes 131, the second through holes 231, the third through holes 410, and The fourth through holes 241 are aligned with each other.

In this state, the third film 401, the optical filter plate 301, the second film 501, the first lens array substrate 101, the first film 401, the second The lens array substrate 201 and the fourth film 701 are sequentially stacked and adhered to each other.

Referring to FIG. 16, the third film 401, the optical filter plate 301, the first lens array substrate 101, and the second lens array substrate 201 are simultaneously cut and a plurality of lens assemblies are provided. Field 20 is formed.

That is, the first lens array substrate 101 is cut into a square or rectangular shape and separated into a plurality of first lens units 100.

Similarly, the second lens array substrate 201, the optical filter plate 301, the third film 401, and the fourth film 701 may each include a plurality of second lens units 200 and a plurality of lenses. The optical filters 300 and the plurality of third spacers 400 are separated.

Alternatively, the third film 401 and the optical filter plate 301 may be adhered separately and cut separately. In addition, the first lens array substrate 101, the first film 401, and the second lens array substrate 201 may be stacked, adhered to each other, and cut. Thereafter, the optical filters 300 are adhered to the first lens units 100, so that the lens assemblies 20 according to the embodiment may be formed.

Referring to FIG. 17, the sensor units 10 are adhered to the lens assemblies 20, and a camera module according to the embodiment is formed.

As described above, since the third film 401, the optical filter plate 301, the first lens array substrate 101, and the second lens array substrate 201 are simultaneously cut, the first lens unit ( 100), the second lens unit 200, the optical filter 300, and the third spacer 400 have the same cut surface.

In addition, when the third film 401, the optical filter plate 301, the first lens array substrate 101 and the second lens array substrate 201 all comprise plastic, they have similar mechanical properties. Since it can be easily cut.

In addition, the first lens array substrate 101 and the second lens array substrate 201 may be formed by a dual injection process. Accordingly, the first spacer 130 may be easily formed integrally with the first support part 120. In addition, the second spacer 230 and the light blocking portion 240 may also be easily formed integrally with the second support portion 220.

Therefore, the manufacturing method of the embodiment can easily manufacture the lens assemblies 20, and can easily provide a camera module having improved heat resistance, mechanical and optical properties.

18 and 19 are views illustrating a process of bonding the camera module 1 to the main substrate 40 according to the embodiment.

Referring to FIG. 18, a plurality of solders 50 are disposed on the main substrate 40. Then, the camera module 1 according to the embodiment may be aligned on the solders 50.

Referring to FIG. 19, a camera module 1 according to an embodiment is disposed on the solders 50, the solders 50, the main substrate 40, and the camera module 1 according to the embodiment. Heat is applied to the whole.

Accordingly, the temperatures of the solders 50 and the camera module 1 according to the embodiment may be raised to about 200 ° C to about 300 ° C. Accordingly, the solders 50 are softened, and the camera module 1 according to the embodiment is bonded to the main substrate 40.

At this time, since the camera module 1 according to the embodiment has high heat resistance, such a reflow process may be performed. In addition, in such a reflow process, the camera module 1 according to the embodiment is not deformed.

In addition, the features, structures, effects and the like described in the embodiments are included in at least one embodiment of the present invention, and are not necessarily limited to only one embodiment. Furthermore, the features, structures, effects, and the like illustrated in each embodiment may be combined or modified with respect to other embodiments by those skilled in the art to which the embodiments belong. Therefore, it should be understood that the present invention is not limited to these combinations and modifications.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood that various modifications and applications are possible. For example, each component specifically shown in the embodiments can be modified and implemented. It is to be understood that all changes and modifications that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims (13)

A lens unit including a curved surface;
A support part disposed around the lens part and extending laterally; And
An opaque spacer formed on said support,
The spacer extends upward or downward from the support,
The spacer unit is disposed on the lower surface or the upper surface of the support. delete The method of claim 1, wherein the support and the spacer comprises the same material,
The spacer unit further comprises an opaque material. delete The lens unit of claim 1, wherein the lens unit is integrally formed with the support part and includes a light shielding part facing the spacer with the support part interposed therebetween. Forming a preliminary lens array substrate including a plurality of lens portions;
Disposing the preliminary lens array substrate inside a second mold;
Injecting a second resin composition into the second mold to form a resin layer on the preliminary lens array substrate to form a lens array substrate; And
Cutting the lens array substrate;
The resin layer is formed on the upper or lower surface of the preliminary lens array substrate,
The preliminary lens array substrate and the resin layer are simultaneously cut,
The preliminary array substrate is transparent,
The resin composition is a method of manufacturing a lens unit containing an opaque material. delete The method of claim 6, wherein the mold seals the lens units. The method of claim 6, wherein the forming of the preliminary lens array substrate comprises:
Injecting a first resin composition inside the first mold; And
The method of manufacturing a lens unit comprising the step of curing the first resin composition injected into the first mold. The method of claim 9, wherein the first resin composition and the second resin composition comprises the same material,
The second resin composition is a method of manufacturing a lens unit further comprises an opaque material. A first lens unit including a first lens portion including a first curved surface, a first support portion disposed around the first lens portion, and a first spacer formed integrally with the first support portion and opaque;
A second lens unit disposed on the first lens unit and adhered to the first spacer; And
A sensor unit disposed under the first lens unit,
The first curved surface is convex upward or concave downward,
The first support extends laterally from the first lens,
The first spacer extends upward from the first support portion,
The first spacer is disposed on the top surface of the first support. The method of claim 11, wherein the second lens unit,
A second lens unit corresponding to the first lens unit;
A second support portion disposed around the second lens portion; And
And an opaque light shielding portion integrally formed with the second support portion on the second support portion. The method of claim 12, wherein the second lens unit comprises an opaque second spacer formed integrally with the second support portion under the second support portion,
And the second spacer is bonded to the first spacer.

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