JP2006128755A - Lens-integrated imaging unit and imaging apparatus provided therewith - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lens-integrated imaging unit capable of ensuring dustproof performance around an imaging device without requiring additional members, and an imaging apparatus using the same. <P>SOLUTION: The lens-integrated imaging unit 1 is provided with a substrate 7 for fixing an imaging device 8, a cylindrical lens fixing member 3 fixed on the substrate 7 by an ultraviolet setting adhesive 5 so that it surrounds the imaging device 8, and a lens 2 fixed on the lens fixing member 3. The imaging device 8 is hermetically sealed with at least the substrate 7, the ultraviolet curing adhesive 5, the lens fixing member 3 and the lens 2. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a lens-integrated image pickup unit in which a lens and an image pickup device are integrally formed, and an image pickup apparatus including the same.

  As a prior art, there existed what was described in patent document 1, for example. FIG. 13 is a cross-sectional view of a conventional lens-integrated imaging unit described in Patent Document 1.

  As shown in FIG. 13, an image sensor 133 such as a CCD is fixed in the substrate 132. A seal glass 135 that covers the image sensor 133 and is hermetically sealed is also bonded to the upper surface of the substrate 132. A lens 138 is bonded to the substrate 132 with an adhesive 154. The lens 138 bonded in this way is covered with a cover 162. An infrared cut filter 158 and a diaphragm 161 are attached to the cover 162.

  When the lens 138 is bonded to the substrate 132, first, the adhesive 154 is applied on the substrate 132 by a UV dispenser. The UV dispenser descends toward the substrate 132 and rises away from the substrate 132 after the adhesive 154 is applied. Here, the UV dispenser operates to apply the adhesive 154 in the syringe through the multipoint nozzle when applying the adhesive. In this manner, after the adhesive 154 is applied, the lens 138 is bonded to the substrate 132 by pressing the lens 138 against the applied adhesive 154.

As described above, according to the conventional technique, the adhesive 154 can be applied by applying the adhesive once by the UV dispenser, and thus the productivity of the adhesive applying process is good.
Japanese Patent Laid-Open No. 11-345955 (paragraph 0029, FIG. 1 (a))

  However, in order to prevent dust from entering the space in which the image sensor is fixed, it is necessary to fix the cover 162 to the substrate after bonding the image sensor and the lens. When the cover 162 is provided in the lens-integrated imaging unit 131, there is a problem that the imaging unit 131 becomes large. In addition, there is a problem that the cost of the member is increased because the necessary members increase. Further, since the production process becomes long, there is a problem that the cost required for production processing increases.

  Therefore, it is conceivable that such a cover 162 is not attached. However, if the cover 162 is simply not attached, dust is mixed on the seal glass 135, and dust is generated in the captured image due to the mixed dust. Alternatively, a part of the photographing light beam is reflected by dust, re-reflected to the surroundings, and then incident on the image sensor, thereby causing a new problem that a false photographed image such as a ghost or flare is generated.

  SUMMARY OF THE INVENTION An object of the present invention is to solve the above-described problems and provide a lens-integrated image pickup unit that can secure dustproofness around an image pickup element without requiring an extra member and an image pickup apparatus using the same. .

  The lens-integrated imaging unit according to the present invention includes an element fixing member that fixes an imaging element, a cylindrical lens fixing member that is fixed on the element fixing member by a filler so as to surround the imaging element, and the lens A lens fixed to a fixing member, and the imaging element is sealed by at least the element fixing member, the filler, the lens fixing member, and the lens.

  The lens-integrated imaging unit according to the present invention further includes a sealing glass for protecting the surface of the imaging element, and the sealing glass includes at least the element fixing member, the filler, the lens fixing member, and the It may be sealed by a lens.

  The filler may include an ultraviolet curable adhesive. The filler may contain a thermosetting adhesive. The filler may further include an ultraviolet curable adhesive in addition to the thermosetting adhesive. The thermosetting adhesive may have a light shielding property. Further, the ultraviolet curable adhesive may be disposed in at least three places on the element fixing member.

  The lens-integrated imaging unit according to the present invention can be mounted on an imaging apparatus.

  With the above-described configuration, the present invention can provide a lens-integrated imaging unit that can ensure dustproofness around the imaging element and an imaging apparatus using the same without requiring an extra member.

(Embodiment 1)
A lens-integrated imaging unit 1 according to a first embodiment of the present invention will be described with reference to FIGS.

  FIG. 1 is a cross-sectional view of a lens-integrated imaging unit 1 in the present embodiment. In FIG. 1, the lens-integrated imaging unit 1 has a structure in which a lens fixing member 3 is fixed to a substrate 7.

  The lens fixing member 3 fixes the lens 2. The lens fixing member 3 has a cylindrical shape. Here, the term “cylindrical” refers to a hollow and tubular shape, and includes a cylindrical shape, a prismatic hollow shape, an elliptical cross section, a hollow columnar shape, and the like. The prismatic shape refers to a shape such as a triangular prism, a quadrangular prism, or a hexagonal prism.

  The lens 2 is fixed to the lens fixing member 3 by a lens pressing member 4. The lens pressing member 4 is fixed to the lens fixing member 3 by being loosely inserted into the lens fixing member 3 and then bonded. The lens fixing member 3 includes a diaphragm 10.

  The substrate 7 is an element fixing member that fixes the imaging element 8. The substrate 7 may be a resin substrate or a ceramic substrate. A concave portion is formed in the substrate 7, and the image sensor 8 is fixed therein. The image sensor 8 is an image sensor such as a CCD image sensor or a CMOS sensor. The concave portion to which the image sensor 8 is fixed is entirely covered with the seal glass 6. The image sensor 8 is protected from dust and moisture by covering the recess with the seal glass 6. A lens fixing member 3 is bonded around the seal glass with an ultraviolet curable adhesive 5. That is, the lens fixing member 3 is fixed to the substrate 7 by the ultraviolet curable adhesive 5 so as to surround the imaging element 8. Therefore, the image sensor 8 and the seal glass 6 are sealed by at least the substrate 7, the ultraviolet curable adhesive 5, the lens fixing member 3, and the lens 2. Here, the term “sealed” refers to a state in which dust does not enter at least the space where the image sensor 8 is present, and even if moisture enters through the ultraviolet curable adhesive 5, dust is included. If not, it can be said to be sealed.

  A method for manufacturing the lens-integrated imaging unit 1 configured as described above will be described below with reference to FIGS. FIG. 2 is a flowchart showing a manufacturing process of the lens-integrated imaging unit 1.

  First, the lens 2 is attached to the lens fixing member 3 (S11, lens attaching step). The lens 2 is fixed to the lens fixing member 3 by loosely inserting and bonding the lens pressing member 4 to the lens fixing member 3 in a state where the lens 2 is mounted on the lens fixing member 3.

  The substrate 7 is processed separately from the lens mounting step S11. 3A and 3B are a plan view and a cross-sectional view when the imaging element 8, the cover glass 6, and the ultraviolet curable adhesive 5 are provided on the substrate 7, respectively. FIG. 3A is a plan view, and FIG. 3B is a cross-sectional view taken along line AB in FIG. First, the image sensor 8 is mounted on the substrate 7 (S12, element mounting step). Specifically, the image sensor 8 is physically fixed to the substrate 7 and electrically connected. Next, the seal glass 6 is attached so as to cover the image sensor 8 (S13, seal glass attachment step). Then, the ultraviolet curable adhesive 5 is applied (S14, adhesive application step). The application position of the ultraviolet curable adhesive 5 is a position surrounding the image sensor 8 on the substrate 7. That is, it is on the surface of the substrate 7 facing the lens fixing member 3 and outside the photographing light beam 23, that is, the entire circumference outside the seal glass 6. The ultraviolet curable adhesive 5 is preferably applied using a dispenser.

  Next, the lens fixing member 3 is adhered to the portion of the substrate 7 to which the ultraviolet curable adhesive 5 has been applied. At this time, the distance between the lens 2 and the image sensor 8 is adjusted (S15, lens height adjustment step). This distance is adjusted so that the image focused by the lens 2 is focused on the image sensor 8. If this focus is not achieved, the image captured by the lens-integrated imaging unit 1 cannot be focused. This focus depends on the distance between the lens 2 and the image sensor 8. Therefore, in order to focus the image, the distance between the lens 2 and the image sensor 8 is adjusted. Details of the lens height adjustment step S15 will be described later.

  Next, the distance between the lens 2 and the image sensor 8 is adjusted, and the ultraviolet curable adhesive 5 is irradiated with ultraviolet rays and cured while holding the lens fixing member 3 and the substrate 7 (S16, adhesive). Curing step). The ultraviolet curable adhesive 5 is cured from all directions on the side of the lens-integrated imaging unit 1 with respect to the adhesive filled in the gap between the lens fixing member 3 and the substrate 7 as shown in FIG. This is performed by irradiating ultraviolet rays in a substantially horizontal direction. In this way, the assembly of the lens-integrated imaging unit 1 is completed.

  The assembled lens-integrated imaging unit 1 can be generated by being incorporated into an imaging apparatus. For example, if it is housed in an exterior member provided with an infrared cut filter, an imaging device that can prevent the intrusion of ambient light can be obtained. In addition, as an imaging device, a digital still camera, a digital video camera, a mobile phone terminal with a camera, etc. can be considered.

  Next, the lens height adjusting step S15 will be described with reference to FIGS. FIG. 4 is a flowchart showing details of this process. FIG. 5 is a cross-sectional view for explaining the positional relationship of each member in the lens height adjustment step S15.

  In the lens height adjustment step S15, as shown in FIG. 5, in addition to the assembled substrate 7 and lens fixing member 3, a table 21, a focus adjustment chart 22, and an arm 23 are required. The table 21 is a combination of an X-axis table 21x, a Y-axis table 21y that can move in the X-axis / Y-axis direction that is the horizontal direction, and a Z-axis table 21z that can move in the Z-axis direction, which is the vertical direction. is there. The focus adjustment chart 22 is a curtain on which a predetermined pattern is formed. The arm 23 is for holding the lens fixing member 3 at a predetermined position. The table 21, the focus adjustment chart 22, and the arm 23 may be integrally configured as a manufacturing apparatus for the lens-integrated imaging unit 1, or may be configured as a plurality of manufacturing apparatuses.

  First, these members are arranged so as to have the positional relationship shown in FIG. 5 (S151, member setting step). That is, the focusing adjustment chart 22 is arranged in front of the lens fixing member 3, that is, vertically upward. The lens fixing member 3 is held by the arm 23. At this time, the arm 23 is adjusted and arranged so that the focus adjustment chart 22 and the front end 2a of the lens 2 are at a predetermined distance (here, distance L). Next, the board | substrate 7 is fixed on the table 21, and it arrange | positions so that the lens fixing member 3 and the ultraviolet curable adhesive 5 may not contact.

  Next, the image focused on the image sensor 8 is converted into an electrical signal via the lens 2 to generate image data (S152, captured image generation step). Then, the manufacturer or the manufacturing apparatus of the lens-integrated imaging unit 1 checks the generated image to determine whether the center of the substrate 7 and the optical axis of the lens 2 coincide with each other (S153, optical axis). Judgment process). If it is determined that the optical axes do not match, the X and Y axis tables 21x, y of the table 21 are adjusted, and the substrate 7 is moved in the horizontal direction so that the optical axes match (S154, horizontal movement). Process).

  Next, the manufacturer or the manufacturing apparatus of the lens-integrated imaging unit 1 checks the generated image and determines whether or not the captured image is in focus (S155, focus determination step). If it is determined that the captured image is not in focus, the Z-axis table 21z of the table 21 is adjusted to bring the substrate 7 closer to the lens fixing member 3 (S156, vertical movement step).

  On the other hand, if the optical axes match and the captured image is in focus, the table 21 is held in that state (S157, table holding step), and the process proceeds to the adhesive curing step S16.

  Here, when the captured image is in focus, the ultraviolet curable adhesive 5 is crushed by the lens fixing member 3 at all application locations, and the ultraviolet curable adhesive 5 is interposed between the lens fixing member 3 and the substrate 7. Are filled without any gaps, and the sealing glass 6 and the image sensor 8 fixed to the substrate 7 are sealed from the outside. In other words, the application amount of the ultraviolet curable adhesive 5 is adjusted so that the lens fixing member 3 is crushed while the captured image is in focus.

  In the above description, the vertical movement step S156 is performed after the horizontal movement step S154. However, the present invention is not limited to this, and the horizontal movement step S154 may be performed after the vertical movement step S156. Alternatively, the horizontal movement step S154 and the vertical movement step S156 may be repeated a plurality of times to gradually adjust the focus and the optical axis.

  As described above, the lens-integrated imaging unit 1 according to the first embodiment of the present invention is fixed to the substrate 7 that fixes the imaging element 8 and the ultraviolet curable adhesive 5 on the substrate 7 so as to surround the imaging element 8. The cylindrical lens fixing member 3 and the lens 2 fixed to the lens fixing member 3 are provided. The imaging element 8 includes at least the substrate 7, the ultraviolet curable adhesive 5, the lens fixing member 3, and the lens 2. It is sealed by. With this configuration, unlike the prior art, it is possible to ensure the dustproof property around the image sensor 8 without requiring an extra member.

  On the other hand, according to the conventional technique, since a gap is generated between the adhesives, the dustproof property around the image pickup device 8 cannot be ensured. The reason is as follows. In the prior art, since the adhesive 154 is applied using a multipoint nozzle, an adhesive gap is likely to occur between the nozzles. By pressing the lens 138 against the applied adhesive 154, the gap of the adhesive between the nozzles is narrowed, but this is also limited. In particular, when the interval between the nozzles is long, it is difficult to completely close the gap of the adhesive. Therefore, in the prior art, if the cover 162 is not simply attached, dust will be mixed into the lens 2 from the gap between the adhesives 154. Therefore, in the prior art, the dustproof property around the image sensor 8 is reduced. It cannot be secured.

(Embodiment 2)
A second embodiment of the present invention will be described with reference to FIGS. FIG. 6 is a plan view and a cross-sectional view of the substrate 7 in a state where the ultraviolet curable adhesive 5 and the thermosetting adhesive 11 are applied in the present embodiment. 6A is a plan view, and FIG. 6B is a cross-sectional view taken along line AB in FIG. 6A. FIG. 7 is a cross-sectional view of the lens-integrated imaging unit 31 according to the second embodiment of the present invention.

  The second embodiment of the present invention is different from the first embodiment of the present invention in the type and application method of the adhesive and the curing method of the adhesive. Since others are common, explanation is omitted.

  In FIG. 6, adhesives 5 and 11 are applied so as to surround the image sensor 8. The adhesive 5 is an ultraviolet curable adhesive 5 that cures when irradiated with ultraviolet rays. The adhesive 11 is a thermosetting adhesive 11 that is cured by heating. The adhesives 5 and 11 are applied by first applying the ultraviolet curable adhesive 5 to the four corners of the substrate 7 using a dispenser, and then applying the thermosetting adhesive 11 in a linear shape using another dispenser. At this time, the thermosetting adhesive 11 is applied without a gap so as to contact the ultraviolet curable adhesive 5.

  Thus, the application length of the thermosetting adhesive 5 can be adjusted by applying the thermosetting adhesive 11 linearly after applying the ultraviolet curable adhesive 5 to the four corners. Generation of a gap between the two adhesives can be prevented. However, the order of application is not limited to this, and the ultraviolet curable adhesive 5 may be applied in the form of dots after the thermosetting adhesive 11 is applied linearly.

  After the adhesives 5 and 11 are applied, the adhesives 5 and 11 are cured through the lens height adjustment step S15 as in the first embodiment of the present invention. The process of curing the adhesives 5 and 11 at this time will be described.

  First, with respect to the adhesives 5 and 11 filled in the gap between the lens fixing member 3 of the lens-integrated image pickup unit 31 and the substrate 7, ultraviolet rays are projected substantially horizontally from all directions on the side of the lens-integrated image pickup unit 31. Irradiate. Thereby, the minimum adhesive strength is secured for the adhesion between the lens fixing member 3 and the substrate 7. Thereafter, the lens-integrated imaging unit 31 is placed in a thermosetting furnace, and the thermosetting adhesive 11 is cured by heating. Thereby, the assembly of the lens-integrated imaging unit 31 is completed.

  As described above, according to Embodiment 2 of the present invention, the adhesive strength of the thermosetting adhesive 11 is reinforced by applying the ultraviolet curable adhesive 5 and the thermosetting adhesive 11. Therefore, the application amount of the ultraviolet curable adhesive 5 can be reduced. Then, the curing time of the ultraviolet curable adhesive 5 can be shortened. While the ultraviolet curable adhesive 5 is cured, it is necessary to hold the lens-integrated imaging unit 31 and occupy the holding device (manufacturing apparatus of the lens-integrated imaging unit 31). Since the occupation time per one can be shortened, the production efficiency of the lens-integrated imaging unit 31 can be increased. In addition, according to Embodiment 2 of the present invention, a thermosetting process is required separately from the ultraviolet curing process. In the thermosetting process, a plurality of lens-integrated imaging units 31 are grouped and set offline. Therefore, productivity will not be reduced.

(Embodiment 3)
A lens-integrated imaging unit according to Embodiment 3 of the present invention will be described with reference to FIG. FIG. 8 is a plan view and a cross-sectional view of the substrate 7 in a state where the ultraviolet curable adhesive 5 and the thermosetting adhesive 12 in the present embodiment are applied. FIG. 8A is a plan view, and FIG. 8B is a cross-sectional view taken along line AB in FIG. 8A.

  The third embodiment of the present invention is different from the second embodiment of the present invention in the type of adhesive and the coating method. Since others are common, description is abbreviate | omitted.

  In FIG. 8, adhesives 5 and 12 are applied so as to surround the image sensor 8. The adhesive 5 is an ultraviolet curable adhesive 5 that cures when irradiated with ultraviolet rays. The adhesive 12 is a thermosetting adhesive 12 that is cured by heating, and has a light shielding property. As a means for giving the light-shielding property to the thermosetting adhesive, for example, there is a means for containing a black pigment, dye, carbon or the like. The adhesives 5 and 12 are applied by first applying the ultraviolet curable adhesive 5 to three locations of the substrate 7 using a dispenser, and then applying the thermosetting adhesive 12 in a linear form using another dispenser. . Here, the application location of the ultraviolet curable adhesive 5 is set such that the center of the application location coincides as much as possible with the center of gravity of the substrate 7 or the lens fixing member 3 on which the lens 2 and the lens pressing member 4 are mounted. Further, the thermosetting adhesive 12 is applied around the imaging element 8 without any gap.

  After applying the adhesives 5 and 12, as in the second embodiment of the present invention, through the lens height adjustment step S15, UV curing and thermal curing are performed to complete the assembly of the lens-integrated imaging unit.

  As described above, according to the third embodiment of the present invention, the gap between the lens fixing member 3 and the substrate 7 is filled with the light-curable thermosetting adhesive 12, so that external light enters through this gap. Can be prevented.

  Further, according to Embodiment 3 of the present invention, the number of coating points of the ultraviolet curable adhesive 5 is set to three and the coating amount is reduced, so that the ultraviolet curing time can be further shortened. In addition, since the center of the application location of the ultraviolet curable adhesive 5 and the center of the substrate 7 or the lens fixing member 3 to which the lens 2 and the lens pressing member 4 are attached are made to coincide with each other, 7 can be held in a well-balanced manner, so that problems such as the substrate 7 being detached from the lens fixing member 3 before thermosetting can be prevented.

(Embodiment 4)
As mentioned above, although Embodiment 1-3 was demonstrated as embodiment of this invention, you may implement | achieve this invention by other embodiment. Here, other embodiments are collectively described as Embodiment 4 below.

  In Embodiments 1 to 3 of the present invention, when the lens 2 is fixed to the lens fixing member 3 by attaching the lens 2 to the lens fixing member 3 and loosely inserting and bonding the lens pressing member 4 to the lens fixing member 3. However, it is not limited to this. For example, the lens 2 may be fixed by heat caulking the lens fixing member 3 without using the lens pressing member 4, or the lens 2 may be fixed to the lens fixing member 3 with an adhesive. Good.

  Moreover, in Embodiment 1-3 of this invention, although the lens 2 was fixed to the lens fixing member 3, you may form these integrally. A cross-sectional view of the lens-integrated imaging unit 41 in the embodiment is shown in FIG. In FIG. 9, the lens 13 also serves as a lens fixing member and is directly fixed to the substrate 7. According to such a configuration, since the lens 13 is a transparent member and has a high ultraviolet transmittance, it can be irradiated from above the substrate 7 as shown in FIG. Therefore, it is not necessary to strictly control the irradiation angle of the ultraviolet rays, and it is possible to prevent a problem that the ultraviolet curable adhesive 5 is not cured even if the irradiation angle is slightly deviated. However, the ultraviolet rays may be irradiated from a substantially horizontal direction.

  Further, when the lens 2 and the lens fixing member 3 are integrally formed, a black coat film 14 may be formed on the surface of the lens 13. A cross-sectional view of the lens-integrated imaging unit 51 in the embodiment at this time is shown in FIG. The black coat film 14 is formed outside the effective optical diameter through which the photographic light flux passes. As described above, by forming the black coat film 14 outside the optical effective diameter of the lens 13, it is possible to prevent the image sensor 8 from being irradiated with disturbance light. The black coat film 14 may be any film having a predetermined light shielding property such as paint, ink, or vapor deposition film. Further, the black coat film 14 may be formed on the surface of the lens 13 or may be formed on the inner wall. Moreover, when forming the black coat film | membrane 14, it is preferable to use the thermosetting adhesive 12 which has a light-shielding property also as a filler. This is to improve the light shielding property in the unit 51. However, only by applying the thermosetting adhesive 12 having a light-shielding property, UV curing cannot be performed and the productivity is deteriorated. Therefore, as shown in FIG. 8, a thermosetting adhesive having a light-shielding property. In addition to 12, it is preferable to use an ultraviolet curable adhesive 5 in combination.

  In the first to third embodiments of the present invention, the gaps between the lens fixing member 3 and the substrate 7 are filled with the adhesives 5, 11, and 12. Other fillers may be filled as long as the distance to 8 can be maintained and dust resistance can be secured. For example, an adhesive filler may be filled.

  In the third embodiment of the present invention, three points of the ultraviolet curable adhesive 5 are applied, but four or more points may be applied. For example, FIG. 11 shows a state of application when four points of the ultraviolet curable adhesive 5 are applied. Compared with the three-point application, the irradiation energy of the ultraviolet ray 9 is increased, but the ultraviolet curable adhesive 5 can be applied to the four corners of the substrate 7, so that the application of the thermosetting adhesive 12 bypasses the ultraviolet curable adhesive 5. The amount to be applied can be minimized, and the coating operation can be easily performed. Further, the center of the application portion and the substrate 7 or the center of gravity of the lens fixing member 3 to which the lens 2 and the lens pressing member 4 are attached can be easily matched.

  In Embodiment 3 of the present invention, the application position of the thermosetting adhesive 12 is set to the inner peripheral side of the ultraviolet curable adhesive 5. A mold adhesive 12 may be applied. In this case, the ultraviolet curable adhesive 5 previously applied to the substrate 7 is cured by ultraviolet irradiation while the distance between the lens 2 and the imaging element 8 is kept at a predetermined distance, and thereafter, the outer periphery of the ultraviolet curable adhesive 5 The lens-integrated imaging unit 61 can be completed by applying the thermosetting adhesive 12 to the side, putting it in a thermosetting furnace, and curing the thermosetting adhesive 12.

  In the first to third embodiments of the present invention, the lens 2 is configured as a single sheet, but the present invention is not limited to this. For example, a three-lens configuration may be used, or more lenses may be configured. The type of lens may be a convex lens, a concave lens, a spherical lens, or an aspherical lens. Further, the material of the lens 2 may be glass or plastic.

  In the first to third embodiments of the present invention, the lens fixing member 3 is configured by one member. However, the present invention is not limited to this, and may be configured by a plurality of members. For example, it is good also as a structure shown in FIG. FIG. 12 is a cross-sectional view of the lens-integrated imaging unit 61 in this example. The structure combining the rotating member 63 and the connecting member 64 in this embodiment is an example of the lens fixing member of the present invention. The connection member 64 is bonded and fixed to the substrate 7 with the ultraviolet curable adhesive 5. The connecting member 64 holds the rotating member 63. The connecting member 64 and the rotating member 63 are combined so as to fit loosely. In a combined state, cover portions 68 and 69 provided on the rotating member 63 are configured to cover the connecting member 64. With this configuration, there is no gap between the rotating member 63 and the connecting member 64, and the space where the image sensor 8 and the seal glass 6 are present is kept in a sealed state. The rotating member 63 can rotate around the connecting member 64. A cam groove 66 is formed obliquely on the outer periphery of the connection member 64, and a cam pin 65 that engages with the cam groove 66 is formed on the rotating member 63. Therefore, when the rotating member 63 rotates around the connecting member 64, the rotating member 63 moves in the vertical direction in FIG. When the rotating member 63 moves in the vertical direction, the distance between the image sensor 8 and the lens 2 changes. Using this operation, the lens-integrated imaging unit 61 can switch between normal shooting and macro shooting.

  Since the lens-integrated image pickup unit according to the present invention can prevent dust from being generated due to dust, it can be applied to digital still cameras, digital video cameras, mobile phone terminals with cameras, endoscopes, robot eyes, and the like.

Sectional drawing of the lens integrated imaging unit in Embodiment 1 of this invention 6 is a flowchart showing manufacturing steps of the lens-integrated imaging unit according to Embodiment 1 of the present invention. (A) Plan view of the substrate of the lens-integrated imaging unit in Embodiment 1 of the present invention (b) Cross-sectional view of the substrate of the lens-integrated imaging unit in Embodiment 1 of the present invention The flowchart which shows the lens height adjustment process of the lens-integrated imaging unit in Embodiment 1 of this invention. FIG. 2 is a schematic diagram showing a member arrangement at the time of manufacturing the lens-integrated imaging unit according to Embodiment 1 of the present invention. (A) Plan view of the substrate of the lens-integrated imaging unit in Embodiment 2 of the present invention (b) Cross-sectional view of the substrate of the lens-integrated imaging unit in Embodiment 2 of the present invention Sectional drawing of the lens-integrated imaging unit in Embodiment 2 of this invention (A) Plan view of the substrate of the lens-integrated imaging unit in Embodiment 3 of the present invention (b) Cross-sectional view of the substrate of the lens-integrated imaging unit in Embodiment 3 of the present invention Sectional drawing of the lens-integrated imaging unit in Embodiment 4 of this invention Sectional drawing of the lens-integrated imaging unit concerning the other Example in Embodiment 4 of this invention. (A) Plan view of a substrate of a lens-integrated imaging unit according to another example in the fourth embodiment of the present invention (b) A lens-integrated imaging unit according to another example in the fourth embodiment of the present invention. Cross section of substrate Sectional drawing of the lens-integrated imaging unit concerning the other Example in Embodiment 4 of this invention. Cross-sectional view of a conventional lens-integrated imaging unit

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 31, 41, 51, 61 Lens-integrated imaging unit 2, 13 Lens 3 Lens fixing member 4 Lens pressing member 5 UV curable adhesive 6 Sealing glass 7 Substrate 8 Imaging element 10 Aperture 11, 12 Thermosetting adhesive 14 Black coat film

Claims (9)

An element fixing member for fixing the imaging element;
A cylindrical lens fixing member fixed by a filler on the element fixing member so as to surround the imaging element;
A lens fixed to the lens fixing member,
The lens-integrated imaging unit, wherein the imaging element is sealed by at least the element fixing member, the filler, the lens fixing member, and the lens. A seal glass for protecting the surface of the image sensor;
The lens-integrated imaging unit according to claim 1, wherein the seal glass is sealed by at least the element fixing member, the filler, the lens fixing member, and the lens. The lens-integrated imaging unit according to claim 1, wherein the filler includes an ultraviolet curable adhesive. The lens-integrated imaging unit according to claim 1, wherein the filler includes a thermosetting adhesive. The lens-integrated imaging unit according to claim 4, wherein the filler further includes an ultraviolet curable adhesive. 6. The lens-integrated imaging unit according to claim 4, wherein the thermosetting adhesive has a light shielding property. The lens-integrated imaging unit according to claim 3, wherein the ultraviolet curable adhesive is disposed in at least three places on the element fixing member. An imaging apparatus comprising the lens-integrated imaging unit according to claim 1. A lens fixing step of fixing the lens to the lens fixing member;
An element mounting process for fixing the image sensor to the substrate;
An application step of applying an adhesive on the substrate without a gap over the entire circumference of the fixed imaging device;
A lens height adjustment step of adjusting a distance between the lens and the image sensor so as to focus an image condensed on the image sensor via the lens;
An adhesive curing step of curing the adhesive while maintaining the distance between the lens and the imaging element at the distance adjusted in the lens height adjustment step;
A method of manufacturing a lens-integrated image pickup unit.

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