Classifications

• • G—PHYSICS
  • G02—OPTICS
  • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
  • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
  • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
  • G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
  • G02B7/08—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted to co-operate with a remote control mechanism
• • G—PHYSICS
  • G02—OPTICS
  • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
  • G02B13/00—Optical objectives specially designed for the purposes specified below
  • G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
  • G02B13/009—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras having zoom function
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04M—TELEPHONIC COMMUNICATION
  • H04M1/00—Substation equipment, e.g. for use by subscribers
  • H04M1/02—Constructional features of telephone sets
  • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
  • H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
  • H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
  • H04M1/0214—Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
  • H04M1/0216—Foldable in one direction, i.e. using a one degree of freedom hinge
  • H04M1/0218—The hinge comprising input and/or output user interface means
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04M—TELEPHONIC COMMUNICATION
  • H04M2250/00—Details of telephonic subscriber devices
  • H04M2250/52—Details of telephonic subscriber devices including functional features of a camera

Definitions

• the present invention relates to an optical module and a portable terminal including the optical module.
• Patent Document 1 discloses an imaging apparatus that includes a focusing imaging lens that is driven along an optical axis by a drive motor, and an aperture stop that adjusts the amount of incident light of the imaging lens. Note that the arrangement of the lens, aperture, and motor is not disclosed.
• Patent Document 2 discloses an image pickup apparatus that opens and closes a shutter after driving an image pickup lens to a focus position by a driving force of a motor.
• the motor is arranged so that the output axis is parallel to the optical axis.
• Patent Document 3 discloses a front-aperture 2-group zoom lens in which an aperture stop is disposed on the subject side of a lens group. Note that the arrangement of motors and the like is not disclosed.
• Patent Document 1 Japanese Patent Laid-Open No. 64-17030
• Patent Document 2 Japanese Patent Laid-Open No. 03-38625
• Patent Document 3 Japanese Patent Laid-Open No. 10-123418
• the motor is arranged so that the output axis is parallel to the optical axis. Therefore, it is necessary to secure the arrangement area of each part in the optical axis direction by the amount obtained by integrating the moving range of the lens, the length of the motor output shaft, the length of the motor body, etc. Thinning is limited.
• An object of the present invention is to provide an optical module thinned in the optical axis direction and the optical module. It is to provide a portable terminal equipped with a mobile phone.
• the optical module of the present invention includes a lens, a lens holder that holds the lens movably in the optical axis direction of the lens, a drive source having an output shaft that outputs a drive force, and the output A transmission mechanism that transmits the driving force output from the shaft to the lens holder, a shatter blade root, a shatter base that holds the shatter blade so that the optical path of the lens can be opened and closed, and an optical image is formed by the lens.
• An image pickup device to be imaged, and a substrate on which the image pickup device is provided, and the stacker base, the lens holder, and the substrate are stacked in this order from one direction with respect to the optical axis direction.
• the drive source is arranged in parallel to the shirter base and the lens holder in a direction substantially perpendicular to the optical axis.
• the drive source is arranged such that the output shaft is substantially perpendicular to the optical axis, and the transmission mechanism transmits the drive force output from the output shaft,
• a worm that rotates about an axis substantially orthogonal to the optical axis, a gear portion that meshes with the worm or a gear that transmits rotation of the worm, and a cam portion that is inclined with respect to a plane orthogonal to the optical axis.
• a cam gear that rotates about an axis substantially parallel to the optical axis, and the lens holding member abuts on the cam portion and is guided in the optical axis direction.
• the apparatus further includes position detection means having a detected part arranged in the cam gear and a detection part arranged in the vicinity of the cam gear, and the position detection means includes the detection part.
• the position of the lens is detected by detecting the rotation of the cam gear.
• the cam gear is arranged in order of the detected portion and the cam portion from the inside of the cam gear.
• the cam portion and the gear portion are arranged concentrically with the cam gear.
• the transmission mechanism includes a cam gear that rotates about an axis substantially parallel to the optical axis and has a protrusion formed on a surface substantially perpendicular to the optical axis, and the transmission mechanism is provided in the vicinity of the protrusion.
• Position detecting means for detecting the protrusion is provided.
• the transmission mechanism includes a cam gear that rotates about an axis substantially parallel to the optical axis and has a portion having a different reflectance on a surface substantially perpendicular to the optical axis.
• a photoelectric sensor having a light emitting element and a light receiving element is provided in the vicinity.
• the lens holder includes a guide shaft that guides the lens holder in the optical axis direction, and the lens holder includes a plurality of bearing portions that are guided by the guide shaft, and the plurality of bearing portions. Have different shapes.
• the lens holder includes a contact portion with the transmission mechanism and a spring placement portion, and a conical coil spring is placed on the spring placement portion. Be forced.
• the lens holding body has two bearing portions guided by the guide shaft, and the two bearing portions have V-shaped different directions with respect to the guide shaft.
• the guide shaft is in sliding contact with the V-shaped valley portion of each bearing portion, and one V-shaped valley portion of the bearing portion and the spring mounting portion are opposed to each other with the guide shaft interposed therebetween.
• the other V-shape of the bearing portion faces the spring mounting portion.
• the transmission mechanism includes a gear portion to which rotation from the drive source is transmitted and a cam portion that is inclined with respect to a plane orthogonal to the optical axis, and is substantially parallel to the optical axis.
• a cam gear that rotates about an axis is provided, and the lens holding member abuts on the cam portion and is guided in the optical axis direction.
• the cam portion and the contact portion that contacts the cam portion of the lens holding member have the same hardness, or the cam portion has a higher hardness.
• the cam gear has a detected part, and is arranged in the order of the detected part and the cam part from the inside, and a position detecting unit having a detecting part arranged in the vicinity of the detected part.
• the position detecting means detects the position of the lens by detecting the rotation of the cam gear by the detecting unit.
• the lowest position of the cam portion is a position where a surface force step perpendicular to the optical axis of the portion is formed without forming the cam portion.
• a portable terminal of the present invention includes a terminal casing, and an optical module that is housed in the terminal casing and forms an optical image from an opening provided in the terminal casing.
• the optical module outputs a lens, a lens holder that holds the lens movably in the optical axis direction of the lens, a driving source having an output shaft that outputs a driving force, and the output axial force.
• a transmission mechanism for transmitting driving force to the lens holder, a shatter blade, and the shatter blade A substrate for a shirter that holds the optical path of the lens so as to be openable and closable, an image sensor on which an optical image is formed by the lens, and a substrate on which the image sensor is provided, with respect to the optical axis direction.
• the shirter base, the lens holder, and the substrate are stacked in this order from one direction, and the drive source is in a direction substantially perpendicular to the optical axis with respect to the shirter base and the lens holder. It is arranged in parallel.
• FIG. 1 is a perspective view showing an external appearance of a mobile phone according to an embodiment of the present invention.
• FIG. 2 is a perspective view showing the appearance of the mobile phone of FIG. 1 in a closed state.
• FIG. 3 is an external perspective view and a cross-sectional view of an optical module of the mobile phone shown in FIG. 1.
• FIG. 4 is an exploded perspective view of the optical module of FIG.
• FIG. 5 is an exploded perspective view of the optical module of FIG. 3 viewed from the side opposite to the subject side.
• FIG. 6 is an exploded perspective view of a shirt unit of the optical module of FIG.
• FIG. 7 is a perspective view of a lens unit of the optical module in FIG. 3.
• FIG. 7 is a perspective view of a lens unit of the optical module in FIG. 3.
• FIG. 8 is a perspective view showing the internal configuration of the lens unit of FIG.
• FIG. 9 is a diagram showing a cam gear of the lens unit of FIG.
• FIG. 10 is a view showing the vicinity of a through hole of a lens holder of the lens unit of FIG.
• FIG. 1 and FIG. 2 are external perspective views showing an embodiment of a mobile phone to which the present invention is applied.
• the mobile phone 1 is configured as a so-called foldable mobile phone.
• FIG. 1 shows an open state
• FIG. 2 shows a closed state.
• the mobile phone 1 includes a receiving case 2 and a transmitting case 3, and the receiving case 2 and the transmitting case 3 are It is connected by a connecting part 4 so that it can be opened and closed.
• the receiving case 2 and the transmitting case 3 are provided with front side cases 2c and 3c on the side (front side) facing each other in the closed state and back side cases 2d and 3d on the back side. These cases are each integrally formed by, for example, grease.
• the receiver case 2 is provided with a main display unit 5 that displays an image on the front side and a sub display unit 6 that displays an image on the back side along each surface.
• the main display unit 5 and the sub display unit 6 are configured by a liquid crystal display, for example.
• the receiver case 2 is provided with an optical module 7 for imaging a subject from an opening 2e provided in the back side case 2d, and a strobe 8 that emits back side force light.
• the transmitter case 3 includes an operation unit 9 on the front side.
• Various buttons for operating the mobile phone 1 such as a numeric keypad button 9a are arranged on the operation unit 9.
• the cellular phone 1 performs radio communication or imaging with the optical module 7 in response to an input operation to the numeric keypad 9a.
• the mobile phone 1 is provided with a high-frequency circuit and antenna for radio communication, a microphone and a speaker for telephone call, and the like.
• a cover is provided on the opposite surface of the operation unit 9, and when the cover is opened, the battery is accommodated and the battery is accommodated.
• the number of parts is reduced and the mobile phone 1 is downsized.
• FIG. 3 (a) is a schematic perspective view of the optical module 7, and FIG. 3 (b) is a cross-sectional view taken along line III-III in FIG. 3 (a).
• the y-axis direction in FIG. 3 is the optical axis direction, and the lower left side in FIG. 3A and the upper side in FIG. 3B are the subject side (upper side in FIG. 2).
• the subject side cover 11, the shirter unit 12, the lens unit 14, the substrate cover 15 and the substrate 16 are laminated in this order from the subject side to form an overall shape. Thin in the optical axis direction and generally formed into a thin rectangular parallelepiped!
• the subject side cover 11, the lens unit 14 (lens base 23 to be described later), the substrate cover 15, and the substrate 16 are formed in a substantially rectangular shape having substantially the same size as viewed in the optical axis direction.
• the side surfaces of these parts form the side surface of the entire shape, and the subject side cover 11 and the base
• the plate 16 constitutes the subject-side surface and the back surface of the entire shape.
• the optical module 7 is configured as a relatively small module.
• the area perpendicular to the optical axis is 22 mm ⁇ 16 mm, and the thickness in the optical axis direction is 6.9 mm.
• the optical module 7 has a built-in motor 13 for driving the lens in the optical axis direction. Can be adjusted.
• FIG. 4 is an exploded perspective view of the optical module 7 viewed from the subject side
• FIG. 5 is an exploded perspective view of the optical module 7 viewed from the opposite side of the subject side.
• the substrate force bar 15 and the substrate 16 are omitted.
• the subject-side cover 11 is formed in a rectangular box shape as a whole, and has a subject-side plate surface 1 la and a side surface ib surrounding the outer periphery of the plate surface 11a. At one end side in the X-axis direction, a rectangular opening 11c that is approximately half the size of the subject-side cover 11 opens, and most of the shirt tutu 12 is exposed.
• the subject side cover 11 is made of, for example, metal. In the optical module 7, the subject side cover 11 may be omitted.
• the shirter unit 12 is formed in a thin, substantially rectangular parallelepiped shape having an outer shape that is approximately half as wide as the lens unit 14 as a whole. As shown in FIG. 5, a circular recess 12a centered on the optical path is provided on the lens unit 14 side of the shirter unit 12, and as shown in FIG. 3 (b), the recess 12a A lens group 21 to be described later is inserted, and the concave portion 12a can also define a part of the moving region of the lens group 21.
• the motor 13 is arranged in parallel with the shirter unit 12 with respect to the optical axis, that is, the shirter unit 12 and the motor 13 are arranged in a direction perpendicular to the optical axis.
• the lens unit 14 is provided on the subject side.
• the motor 13 is located on the radially outer side of a lens group 21 described later.
• a flexible printed circuit board for electrically connecting the shirter unit 12, the motor 13 and the like to the substrate 16 is provided.
• FPC flexible printed circuit board
• the lens unit 14 includes a lens group 21, a lens holder 22 that holds the lens group 21, and a lens base body 23 that holds the lens holder 22 so as to be movable in the optical axis direction of the lens group 21. Preparation It is.
• the lens group 21 includes, for example, three optical lenses. From the object side, the first lens 24, the mask 25, the second lens 26, the mask 27, and the third lens are arranged. They are stacked in the order of lens 28. The first lens 24, the second lens 26, and the third lens 28 are configured so that the diameter gradually increases from the subject side. A single lens may be held by the lens holder 22.
• the lens holding body 22 has a circular concave portion that is reduced in a step shape so that the lenses 24, 26, and 28 are fitted and inserted, respectively. Yes.
• the first lens 24, the second lens 26, and the third lens 28 are housed and stacked in that order in the concave portion, and a ring-shaped retainer 29 is stacked, and the retainer 29 is attached to the lens holder 22.
• the lens group 21 is held by the lens holder 22 by being fixed by a fixing means such as an adhesive.
• the lens holding body 22 is made of, for example, a resin.
• the lens base 23 is formed of, for example, grease, and the overall shape is a generally thin rectangular parallelepiped.
• the lens base 23 is about the same size as the subject cover 11, and the subject cover 11 is placed on the lens base 23 from above the shirter unit 12 and the motor 13, and is fitted to the lens base 23.
• the subject side cover 11 and the lens base 23 are fixed, for example, by a plurality of hole-like locking portions 23a provided on the lens base 23, and claw portions 1 Id provided on the subject side cover 11. Is performed by inserting and locking.
• a substantially rectangular recess 23b is provided on the subject side of the lens base 23 as a whole, and the shirter unit 12 is fixed to the lens base 23 in a state of being fitted and inserted into the recess 23b.
• the shirter unit 12 and the lens base 23 are fixed by, for example, inserting a screw 101 into the through hole of the lens base 23 and screwing it into the shirter unit 12.
• a recess 23c is provided adjacent to the recess 23b, and the motor 13 is fixed to the lens base 23 while being accommodated in the recess 23c.
• a part of the recess 23c may be formed in a hole shape.
• the motor 13 is fixed to the lens base 23 by, for example, the motor 13 being fixed to the motor fixing member 31 by soldering or welding.
• the screw 102 threaded through the through hole of the motor fixing member 31 is screwed into the screw hole of the lens base 23.
• the motor fixing member 31 is formed of, for example, a flat metal and is disposed on the subject side of the motor 13.
• the shatter unit 12 and the motor 13 are accommodated in the recess 23b or the recess 23c of the lens base 23, so that the subject side surface of the lens base 23 and the subject side of the shatter unit 12 are on the subject side.
• the surface on the subject side of the surface of the motor fixing member 31 is substantially the same in the optical axis direction.
• the substrate cover 15 is formed of, for example, grease, and has a generally thin rectangular parallelepiped shape.
• the substrate cover 15 is provided with an opening 15a for securing an optical path.
• a plurality of recesses 15b capable of accommodating various components provided on the substrate 16 are provided on the substrate 16 side of the substrate cover 15.
• An IR cut filter 33 is provided on the lens unit 14 side of the substrate cover 15.
• the substrate 16 is formed of a rigid substrate material as a rigid substrate, and is formed in a substantially rectangular shape as a whole.
• the substrate 16 is a multilayer printed circuit board in which a nonturn layer, a ground layer, and a power supply layer are laminated on an insulating layer formed of, for example, hard resin.
• An optical image is formed by the lens group 21 on the object-side surface 16a of the substrate 16, and is connected to an image sensor 35 that outputs a signal corresponding to the formed optical image, and a connector portion 32b of the FPC 32.
• Various electronic parts such as the connector part 36 are provided.
• the surface 16b of the substrate 16 opposite to the subject is only provided with an FPC 37 extending along the surface 16b and extending from the substrate 16. Yes, the surface 16b side is substantially flat. It should be noted that the FPC 37 is connected to the surface 16a on the subject side, and nothing is mounted on the surface 16b opposite to the subject.
• the substrate 16 constitutes a surface on the opposite side of the subject side in the overall shape of the optical module 7, and the optical module 7 is portable.
• the surface 16b opposite to the subject side of the substrate 16 abuts on an appropriate member such as a substrate (not shown) provided inside the cellular phone 1, so that the cellular phone 1 Retained.
• the FPC37 board is a connector for connecting to the board etc. provided in the mobile phone 1.
• a nectar 38 is provided. By connecting this connector 38, the battery power of the mobile phone 1 can also receive power.
• the image sensor 35 is a CCD, for example, and outputs a signal corresponding to the received light.
• the signal output from the imaging element 35 is output to the image processing unit provided on the substrate for the display unit of the mobile phone 1 through the substrate 16 and the FPC 37 and processed.
• the optical image is displayed on the main display unit 5 or the sub display unit 6.
• FIG. 6 is an exploded perspective view of the shirt unit 12, and the upper side of the paper corresponds to the subject side.
• the shatter unit 12 includes a shatter base 41 formed in a box shape as a whole, a neutral density filter 42 accommodated in the shatter base 41, a neutral density filter holding plate 43 that holds the neutral density filter 42, and a shatter base.
• the outer shape of the shirter unit 12 is generally constituted by the shirter base body 41 and the presser plate 45.
• the shirter unit 12 and the lens unit 14 each have a shirter base 41 and a lens base 23 independently. It is made. Then, the shirter base 41 and the lens base 23 are joined together to constitute a part of the optical module 7.
• an opening through which incident light is transmitted to the lens unit 14 is provided on the bottom surface of the shirter base body 41.
• the shape of the opening is appropriate, but is rectangular, for example.
• a plurality of fixed convex portions 41a and movable convex portions 41b are provided around the opening, and the fixed convex portion 4 la and the movable convex portion 4 lb are formed in through holes provided in the neutral density filter 42 and the shirter blades 44A to 44D. Inserting and driving the movable convex part 41b and rotating the neutral density filter 42 around the fixed convex part 41a and rotating the shutter blades 44A to 44D allows the light filter 42 to be put in and out and the optical path of the shatter blades 44 A to 44D to be adjusted. Opening and closing is performed.
• an actuator (not shown) for driving the movable convex portion is accommodated in the shirter base body 41.
• it is accommodated in a convex portion 41c around the concave portion 12a (see FIG. 5).
• the operation of the actuator is controlled by a control unit (not shown) of the mobile phone 1 via the FPC 32, the board 16, and the FPC 37.
• FIG. 7 is a perspective view of the lens unit 14 as viewed from the side opposite to the subject
• FIG. 5 is a perspective view of the internal configuration of the camera unit 14 with the subject side force also viewed.
• the lens holding body 22 includes guided portions 22 a and 22 b that protrude outward in the radial direction of the lens 21.
• a through hole 22c is provided in the guided portion 22a, and a guide shaft 51 is passed through the through hole 22c.
• the guide shaft 51 extends in the optical axis direction and is fixed to the lens base 23, and guides the guided portion 22a in the optical axis direction.
• the guided portion 22b is inserted into a concave rail portion 23d provided on the lens base 23.
• the rail portion 23d is formed so as to extend in the optical axis direction, and guides the guided portion 22b in the optical axis direction.
• the motor 13 is composed of, for example, a stepping motor, and includes a motor main body 13a including a rotor and the like, and an output shaft 13b extending from the motor main body 13a and driven to rotate.
• the motor body 13a is formed in, for example, a substantially cylindrical shape, and the output shaft 13b also extends from the cylindrical end face.
• the motor body 13a has a length in the direction of the output shaft 13b larger than a width in a direction perpendicular to the output shaft 13b.
• the length obtained by integrating the length of the motor body 13a and the length of the output shaft 13b is larger than the diameter of the lens group 21, and the width in the direction perpendicular to the output shaft 13b of the motor body 13a is the length of the lens group 21. It is smaller than the thickness in the optical axis direction (see Fig. 3 (b)).
• the motor 13 is along a direction orthogonal to the output optical axis 13b force optical axis and orthogonal to the arrangement direction with the shirter unit 12 (see z-axis direction, see also Figs. 4 and 5). It is arranged to extend. That is, the overall shape of the motor 13 is arranged so that the longitudinal direction is perpendicular to the optical axis and the lateral direction is parallel to the optical axis.
• a terminal folder 52 is provided on the side of the motor body 13a opposite to the shirter unit 12, and the terminal 52a of the terminal folder 52 is connected to the FPC 32 (see FIGS. 4 and 5). .
• the operation of the motor 13 is controlled by the control unit (not shown) of the mobile phone 1 through the FPC 37, the substrate 16, the FPC 32, and the terminal folder 52.
• the lens unit 14 is provided with a transmission mechanism 53 that converts the rotation of the output shaft 13b of the motor 13 into a linear motion in the optical axis direction and transmits the linear motion to the lens holder 22. It is.
• the transmission mechanism 53 includes a worm 54 provided on the output shaft 13b of the motor 13, a worm wheel 55 that meshes with the worm 54, and a cam gear 56 that meshes with the worm wheel 55. ing.
• the worm 54, the worm wheel 55, and the cam gear 56 function as a cam drive unit that drives a cam unit 56b described later.
• the worm 54 and the worm wheel 55 constitute a worm gear device, and convert rotation about an axis perpendicular to the optical axis of the output shaft 13b into rotation about an axis parallel to the optical axis. That is, the worm 54 rotates about an axis orthogonal to the optical axis, and the worm wheel 55 rotates about an axis parallel to the optical axis by the driving force transmitted by the worm 54.
• the worm wheel 55 includes a large-diameter gear portion 55a that meshes with the worm 54, and a small-diameter gear portion 55b that meshes with the cam gear 56 that has fewer teeth than the large-diameter gear portion 55a.
• the rotation transmitted from the ohm 54 is reduced at a predetermined reduction ratio and transmitted.
• the worm wheel 55 is inserted into a circular recess 23e provided in the lens base 23 and a shaft 31b protruding from the motor holding member 31. It is pivotally supported.
• FIG. 9 (a) is a perspective view of the cam gear 56 as seen from the subject side force
• FIG. 9 (b) is a front view of the cam gear 56 as seen in the direction of the rotation axis.
• the cam gear 56 includes a gear portion 56a in a part of the outer peripheral portion and a cam portion 56b in another part of the outer peripheral portion.
• the gear portion 56a and the cam portion 56b are formed over substantially half the circumference of the cam gear 56, respectively.
• the gear portion 56a meshes with the worm wheel 55, and the cam gear 56 rotates around an axis parallel to the optical axis.
• the cam portion 56b has a cam surface 56c that is inclined with respect to a surface orthogonal to the rotation axis of the cam gear 56, that is, inclined to a surface orthogonal to the optical axis.
• the lens holder 22 has a contact portion 22d that contacts the cam surface 56c, and the contact portion 22d slides on the cam surface 56c as the cam gear 56 rotates. Is possible.
• the lens holding body 22 has a spring mounting portion 22k, and the spring 57 is mounted on the spring mounting portion 22k, so that the spring 57 is biased toward the cam surface 56c. Accordingly, as the cam gear 56 rotates, the lens holder 22 is guided in the optical axis direction.
• the spring 57 is, for example, a coil-shaped compression spring, specifically a conical coil spring, and is sandwiched between the lens holding body 22 and the lens base 23 with a predetermined compression force.
• a conical coil spring By using a conical coil spring, the coiled portions do not overlap when compressed, and the thickness can be suppressed as much as possible. Even when the lens holder 22 moves and reaches the shortest distance from the lens base 23, it is not necessary to set the distance in consideration of the thickness of the spring 57. You will be able to.
• the inclination angle of the cam surface 56c may be set as appropriate.
• the inclination angles of the end-side cam surfaces 56e1 and 56e2 on both ends are The inclination of the cam surface 56d between the center side and the cam surface 56d is set to 0 or so that the movement of the lens holder 22 in the optical axis direction when the cam gear 56 overruns is suppressed. May be.
• the inclination angle of the central cam surface 56c may be about 9 ° ⁇ 20%, that is, 7 to 11 °. This range is based on the minimum required size and the amount of movement of the lens holder 22 in the optical axis direction while aiming for miniaturization of the cam gear 56 mounted in the optical module.
• the cam gear 56 is small, and the center cam surface 56c may not be enough for one round to secure the necessary moving amount of the lens holder 22.
• the rotational amount of the force gear 56 increases, and it takes a drive time for the lens holder 22 to reach a predetermined position.
• the angle is larger than 11 °, the lens holder 22 cannot be held in fine increments, and the drive resolution is reduced. Also, due to the gravity of the lens holder 22, the contact portion 22d and the central cam surface Sliding between 56c is likely to occur.
• one end side cam surface 56el that is the lowest position of the cam portion 56b is a position where a surface force stepped portion 56i that forms the gear portion 56a is formed.
• the step portion 56i By forming the step portion 56i in this way, the thickness (height) of the other end side cam surface 56e2 which is the highest position in the cam gear 56 can be suppressed, and the entire optical module can be thinned in the optical axis direction.
• the step portion 56i serves as a stopper to prevent the abutting portion 22d from further moving in the direction of the cam gear 56. .
• the lens unit 14 is provided with a photoelectric sensor 61 for detecting the rotational position of the cam gear 56 and thus detecting the position of the lens holder 22 in the optical axis direction. Yes.
• the photoelectric sensor 61 as a detection unit in the position detection unit is configured by a reflective photoelectric sensor, and includes a light emitting unit 61a and a light receiving unit 61b.
• the photoelectric sensor 61 is arranged so as to face the surface orthogonal to the rotation axis of the cam gear 56, the light emitting unit 61a irradiates the cam gear 56 with light, and the light receiving unit 61b emits the light reflected by the cam gear 56. It receives light and outputs an electrical signal corresponding to the received light.
• the position of the lens can be detected using a position where the received light amount is a predetermined amount as a reference position.
• the position of the lens can be grasped with reference to the position of the lens at a predetermined light amount in the middle of the gentle change.
• the photoelectric sensor 61 includes a sensor that outputs an electrical signal (for example, a current value, a voltage value, or a power value) corresponding to the amount of light received by the light receiving unit 61b, and the amount of light is constant.
• the output signal is switched between an on signal and an off signal depending on whether or not the threshold is exceeded.
• the photoelectric sensor 61 is connected to the substrate 16 by connecting the FPC 32 (see FIG. 4 and FIG. 5) to the terminal 61c (see FIG. 8) provided on the opposite side of the cam gear 56. Have been.
• the operation of the photoelectric sensor 61 is controlled by a control unit (not shown) of the mobile phone 1 via the FPC 32, the substrate 16, and the FPC 37.
• the position of the cam gear 56 facing the photoelectric sensor 61 that is, the position concentric with the cam portion 56b is the light from the light emitting portion 61a.
• the detected portion 56f is located, for example, on the inner peripheral side of the cam portion 56b.
• the detected part 56f includes a first reflecting part 56g and a second reflecting part 56h.
• the first reflecting portion 56g is formed into a protrusion that protrudes closer to the photoelectric sensor 61 than the second reflecting portion 56h (hereinafter also referred to as a protrusion or protrusion).
• the second reflecting portion 56h is a forming surface of the protruding portion (first reflecting portion 56g).
• the first The reflection part 56g is set to have a higher light reflectivity than the second reflection part 56h.
• the surface of the first reflecting portion 56g on the photoelectric sensor 61 side is subjected to mirror finishing or color coating (e.g., white coating) by metal vapor deposition, or a high reflectance member (e.g., mirror) is attached.
• the reflectance of the first reflecting portion 56g is set to be higher than the reflectance of the second reflecting portion 56h, for example, by subjecting the surface of the second reflecting portion 56h to a satin finish.
• the cam gear 56 may be formed of a resin and integrally formed with a protruding portion that is the first reflecting portion 56g, and may be subjected to the above-described high light reflection processing.
• the first reflecting portion 56g (the protruding portion) After that, the first reflective part 56g (projection part) is made of a highly reflective material rather than the cam gear 56, or the surface is subjected to a highly reflective process!
• the second reflective part 56h Let's glue it on top.
• the photoelectric sensor 61 (optical sensor) having the light emitting part 61a (light emitting element) and the light receiving part 61b (light receiving element) is used as the position detecting means, and the first reflecting part 56g formed on the protrusion is used. Since the distance from the photoelectric sensor 61 is shortened and the amount of light received by the light receiving unit 61b is increased, the position of the lens that is the driving destination can be accurately detected. Specifically, the photoelectric sensor 61 has a force that determines the distance to the detection target optimum for detection. The height of the first reflecting portion 56 g is set to the optimum distance, and the second reflecting portion 56h is further increased. By setting the distance apart, it is possible to cause a large difference in the output signal of the photoelectric sensor 61, thereby preventing false detection and improving detection accuracy.
• a photoelectric sensor with a short optimum distance. For example, it is optimal from the graph of the distance and relative output current of a reflective photoelectric sensor. Looking at the distance, NJL5196Z97K (manufactured by New Japan Radio Co.) is about 0.6mm, CNB1011 (manufactured by Matsushita) is about 0.8mm, EE-SY125 (made by OMRON) is about 0.7mm, PR-30-T (Citizen Electronics Co., Ltd.) is about 0.4 mm, and the relative output current decreases as the optimum distance approaches and moves away from the peak.
• NJL5196Z97K manufactured by New Japan Radio Co.
• CNB1011 manufactured by Matsushita
• EE-SY125 made by OMRON
• PR-30-T Caitizen Electronics Co., Ltd.
• the output signal is switched between the on signal and the off signal depending on whether or not the threshold value is exceeded.
• the object to be detected must be within a distance of 1.5 mm in any of the photoelectric sensors mentioned above.
• the photoelectric sensor 61 and the second reflecting portion 56h must be separated from each other by 1.5 mm.
• the first reflecting portion 56g is formed by projecting, so that the distance can be shortened to a position suitable for the photoelectric sensor 61 to be switched to the ON signal, thereby preventing erroneous detection and improving detection accuracy. It will be possible to improve.
• the photoelectric sensor 61 greatly reduces the current value obtained by the light receiving unit 61b when the distance to the object to be detected changes slightly. For example, the current value obtained at the optimum distance is set to 100%. Sometimes it is preferable to drop more than 50% when lmm away from the optimum distance.
• the reflectance of the first reflecting portion 56g is made higher than that of the second reflecting portion 56h.
• the first reflecting portion 56g is described above.
• Such high light reflection processing or high light reflection material may be used. When performing this high light reflection processing, it is only necessary to apply force to the protrusions, so that processing can be performed easily and accurately.
• the high light reflection of the present invention means that the first reflection part 56g has a higher reflectance when measured under the same conditions as the second reflection part 56h.
• the first reflecting portion 56g serving as the detected portion is not limited to the one provided on the inner peripheral side of the cam portion 56b on the surface orthogonal to the optical axis of the cam gear 56.
• the cam portion 56 It may be set on the outer peripheral side.
• the first reflecting portion 56g and the cam portion 56b are provided separately.
• the photoelectric sensor 61 is disposed on the protruding portion of the cam portion 56b, and the first reflecting portion of the cam portion 56b is provided. You may make it also use 56g.
• the first reflecting portion 56g detected by the photoelectric sensor 16 when the lens holding body 22 abuts between the end portions of the cam portion 56b is not necessarily overlapped with the cam portion 56b. Good.
• the length of the first reflecting portion 56g is made shorter than the length of the cam portion 56b, and the deviation amount between the photoelectric sensor 16 and the contact portion 22d of the lens holding body 22 is set to be different from that of the cam portion 56b. What is necessary is just to make it equal to the deviation
• the force photoelectric sensor described using the photoelectric sensor 61 has a light emitting unit and a light receiving unit, and changes according to a change in reflected light of light emitted from the light emitting unit.
• the output signal is not limited to one that outputs a signal according to the amount of light.
• a photoelectric sensor having a position detection element (PSD) or a two-divided photodiode is used as a photoelectric sensor, and the detection is based only on the change in distance between the photoelectric sensor and the cam gear.
• the position of the Mugia may be specified.
• a mechanical switch sensor may be used in place of the photoelectric sensor, and only the protrusion forming part of the first reflecting part 56g may be contacted and an ON signal may be obtained by the contact! /.
• the first reflecting portion 56g and the second reflecting portion 56h are formed by providing a protruding portion (projecting portion), and further, the first reflecting portion 56g has a high light reflection.
• the first reflection portion 56g is made of a light-high reflection process or a light-high reflection material directly on the second reflection portion 56h without providing a protrusion. You may form In other words, it is only necessary to form a portion with a different reflectance on a surface substantially perpendicular to the optical axis of the lens unit 12 of the cam gear 56 so that the photoelectric sensor 61 can detect the difference.
• the reflective photoelectric sensor 61 is about 6 mm, EE—S of a product whose optimum distance to the object to be detected is longer than that of the product described above, for example, RPR-220UC30N (ROHM). Select Y201 (OMRON) about 4mm, GP2S700HCP (SHARP) about 2.2mm, etc.
• a concave portion or a groove portion is formed on the surface to change the distance to the photoelectric sensor 61, or an uneven portion is formed. The reflected light path of the incident light from the photoelectric sensor 61 may be changed.
• either the first reflecting portion 56g or the second reflecting portion 56b may be a transmissive member or may be provided with a hole.
• a transparent member or a hole as described above, the above-described difference in reflectance can be surely made 50% or more, and the photoelectric sensor 61 can be connected to the light emitting portion 6 la.
• a transmissive photoelectric sensor in which the light emitting portion and the light receiving portion are provided on the upper surface and the lower surface via the cam gear 62 can be used.
• the first reflecting portion 56g is formed to be within the range of the cam portion 56b that is shorter than the cam portion 56b in the circumferential direction. Specifically, the length of the first reflecting portion 56g is equal to the length of the central cam surface 56d.
• the photoelectric sensor 61 receives the reflected light from the first reflecting surface 56g and outputs a signal.
• it comes into contact with the side cam surface 56e, that is, when holding the lens
• the body 22 reaches the end of the moving range in the optical axis direction
• it receives the reflected light from the second reflecting surface 56h and outputs a signal.
• the circumferential position of the first reflecting portion 56g and the central cam surface 56d is set so as to be shifted by an amount corresponding to the positional shift between the photoelectric sensor 61 and the contact portion 22d of the lens holder 22. Has been.
• the reference position may be a storage position (optical lens system non-driven, non-zoom position), a predetermined zoom position, an infinite focus position, a close focus position, or an arbitrary focus position. These may be combined to provide a plurality of reference positions.
• a storage position, a zoom area, an arbitrary focus area, etc. may be combined, and a plurality of reference areas may be provided by combining them.
• the height of the cam portion 56b is determined according to the required amount of extension of the lens, and the height of the first reflection portion 56g is determined according to the optimum condition with the photoelectric sensor 61.
• the protrusion of the first reflecting portion 56g is formed higher than the cam portion 56b and the end-side cam surface 56e.
• the control unit (not shown) of the mobile phone 1 specifies the origin position of the cam gear 56 based on the position when the signal from the photoelectric sensor 61 is switched between the on signal and the off signal, The rotational position of the cam gear 56 is controlled based on the origin position.
• the hardness of the cam portion 56b and the contact portion 22d is defined. Specifically, both the hardnesses are equal, or the cam portion 56b is harder than the contact portion 22d. It is doing so. If the contact part 22d is harder, only a predetermined part of the cam part 56b will be scraped if contact is made for a long time, and the lens will be held linearly (that is, by a predetermined amount at a predetermined time at any position). If the body 22 does not move in the optical axis direction, the position detection of the lens holding body 22 cannot be accurately performed.
• equivalent hardness is If the difference in Rockwell hardness is within a range of ⁇ 10%, it is only necessary to have a certain degree.
• ASTM-D785 Fluororesin with Rockwell hardness
• the motor 13 is arranged so that the output shaft 13b extends in a direction perpendicular to the optical axis of the lens group 21, and the rotation of the output shaft 13b is moved in the optical axis direction by the transmission mechanism 53. Therefore, the lens group 21, the motor body 13a, and the motor output shaft 13b are made thinner compared to the case where they are arranged in series in the optical axis direction. Can be achieved. In other words, in contrast to the conventional arrangement in which the output axis 13b is parallel to the optical axis, the number of options for making the output axis 13b orthogonal to the optical axis increases, and the degree of freedom in design is improved.
• the motor 13 is provided on the outer side in the radial direction of the lens group 21, or is arranged in parallel with the shirter unit 12 (shutter base 41), so that the thickness can be reduced. Then, the overall shape of the substrate body 41 for the shirter, the substrate body 23 for the lens, the substrate cover 15 and the substrate 16 in this order can be made thin and thin in the optical axis direction.
• the substrate 16 has a width equal to or larger than that of the shirter base 41, the motor 13, the lens base 23, and the substrate cover 15, and is a surface opposite to the surface 16a of the substrate 16 on which the imaging element 35 is provided.
• 16b constitutes one surface of the overall shape of the optical module 7, and only the FPC 37 extending along the surface is provided on the opposite surface 16b. Therefore, when mounting the optical module 7, The mobile phone 1 can be placed in contact with a flat portion inside the mobile phone 1, for example, a main board. Therefore, the mounting of the optical module 7 is facilitated, and the fixing is performed reliably.
• the configuration of the present invention it is possible to form a thin shape even with respect to the optical module including the substrate 41 for the shirter that holds the shutter blade so that the optical path of the lens can be opened and closed.
• the transmission mechanism 53 is provided with a cam portion 56b having a cam surface 56c inclined with respect to a surface orthogonal to the optical axis, and the lens is held along with the movement of the cam portion along the surface orthogonal to the optical axis. Since the body 22 is guided in the optical axis direction, the movement characteristics of the lens holding body 22 can be set by adjusting the inclination angle and height of the cam surface 56c. For example, the rotational speed of the motor 13 is constant. In addition, it is possible to prevent the lens holder 22 from moving in the optical axis direction even if the moving speed of the lens holder 22 is changed or the motor 13 overruns. In other words, the control of the motor 13 can be facilitated and the control accuracy can be relaxed.
• the lens holding body 22 By providing the spring 57 for urging the lens holding body 22 to the cam surface 56c, the lens holding body can be lowered by simply pushing up and guiding the lens holding body 22 by raising the cam surface 56c. It is possible to guide 22 by following.
• the thickness can be reduced in the optical axis direction.
• the force gear is generally thin in the direction of the rotation axis and is thin, the arrangement area in the direction of the optical axis is smaller when the rotation axis is parallel to the optical axis than in the case where the rotation axis is orthogonal to the optical axis. Can be achieved.
• the gear portion 56a is provided at a part of the outer peripheral portion of the cam gear 56, and the cam portion 56b is provided at the other portion of the outer peripheral portion of the cam gear 56, so that the shape is relatively simple. In addition, setting and assembly of the shape and arrangement area are relatively easy. In addition, since the cam portion 56b is provided on the outer peripheral portion, the cam portion 56b is longer with respect to the rotation angle than when the cam portion 56b is provided on the inner peripheral side. The lens holder 22 can be smoothly guided.
• the photoelectric sensor 61 Since the photoelectric sensor 61 is arranged and the position of the lens holder 22 is detected based on the change in reflected light accompanying the rotation of the cam gear 56, the position of the lens holder 22 can be detected easily and accurately. Can do.
• a photoelectric sensor 61 that outputs a different signal according to a change in the amount of reflected light is provided, and when the lens holder 22 is in the central range of the moving range, the first reflecting portion 56g causes the photoelectric sensor When the light of 61 is reflected and the lens holder 22 is at the end of the moving range, the light of the photoelectric sensor 61 is reflected by the second reflecting portion 56h, which is different in the amount of reflected light from the first reflecting portion 56g.
• the end position of the moving range of the lens holder 22 can be easily detected.
• the first reflecting portion 56g is protruded to the photoelectric sensor side from the second reflecting portion 56h, and the reflectance of the surface of the first reflecting portion 56g is made higher than that of the second reflecting portion 56h. Process Therefore, the difference in the amount of light reflected to the photoelectric sensor 61 between the two becomes larger, and the boundary between the first reflecting portion 56g and the second reflecting portion 56h is detected more accurately.
• the cam gear 56 is arranged in the order of the detected portion 56f (first reflection portion 56g, second reflection portion 56h) and the cam portion 56b. This makes it possible to accurately control the position of the lens for a long period of time while keeping the cam gear 56 and the peripheral parts of the cam gear 56 in the minimum necessary space. Specifically, by forming the detected portion 56f on the innermost side, the photoelectric sensor 61 disposed opposite to the photosensor 61 can be brought closer to the center side of the concentric circle of the cam gear 56, so that the small size in the direction perpendicular to the optical axis can be obtained. Can be realized.
• the cam portion 56b is formed on the outer side, the inclination angle described above can be made gentler than that formed on the inner side. Therefore, the contact portion 22d and the central cam are caused by the gravity of the lens holder 22 described above. Slip with surface 56c is less likely to occur.
• the guide shaft 51 has two through holes 22cl and 22c2 as bearing portions, and the through holes 22cl, 22c2 forms a V shape with different angular directions with respect to the guide shaft 51, and the guide shaft 51 slides into contact with the V-shaped valley portion to guide the lens holder 22 to thereby guide the lens holder. Eliminates 22 rattles.
• the through hole 22cl serving as the first bearing portion formed in the guided portion 22a is formed in a substantially fan shape having a V-shape, and the left side (abutting portion) of the guide shaft 51 in the drawing.
• Tapered sliding contact portions 22e, 22i3 ⁇ 4 are formed on the nearest side of 22d, the farthest side of the spring mounting portion 22k), and the right side of the guide shaft 51 in the drawing (the farthest side of the abutting portion 22d, the spring mounting portion)
• An arc-shaped portion 22 g is formed on the nearest side of 22k.
• the through-hole 22c2 serving as the second bearing portion is formed in a substantially fan shape having a V shape, and tapered sliding contact portions 22h and 22i are formed on the right side of the guide shaft 51 in the drawing.
• An arcuate portion 22j is formed on the left side of the shaft 51 in the drawing.
• the V-shaped portion that is a sliding contact portion with the guide shaft 51 is formed in a shape that is positioned in a direction different by 180 ° across the guide shaft 51. As a result, the play of the lens holder 22 can be eliminated.
• the contact portion 22d and the spring placement portion 22k are arranged at positions facing each other with the guide shaft 51 interposed therebetween, and one of the two V-shaped portions is on the nearest side of the contact portion 22d and the other is the spring.
• the contact between the guide shaft 51 and the bearing part is more reliable. It becomes a thing and can eliminate rattling.
• the guide shaft 51 will be tightened tightly, resulting in a load during driving. Therefore, reduce the load by setting the V-shaped opening angle to 90 ° or more. Is preferred. Also, in this embodiment, two V-shaped bearing parts are formed for ease of manufacturing and accuracy of backlash elimination, and both V-shaped parts are provided in directions different by 180 °. However, if there are at least differently shaped bearing parts, any number of bearing parts can be eliminated.
• the coil spring panel 57 is provided by disposing at least the V-shaped valley portion formed by the tapered sliding contact portions 22e and 22f and the spring mounting portion 22k across the guide shaft 51. By pressing the guide shaft 51, the guide shaft 51 is surely brought into sliding contact with the sliding contact portions 22e and 22f, so that the shifting can be stabilized.
• the present invention is not limited to the above embodiment, and may be implemented in various modes.
• the target to which the optical module of the present invention is applied is not limited to a mobile phone, and may be applied to various devices such as a digital camera and a surveillance camera.
• the drive source should be arranged at an appropriate position with respect to the lens, shirter, image sensor, and the like.
• the transmission mechanism is not limited to a mechanism using a cam as long as it transmits the rotation of the drive source to the lens holder.
• rotation about an axis orthogonal to the optical axis may be converted into translational movement in the optical axis direction by a slider link mechanism including a rack and a pion.
• the present invention is not limited to the one in which the cam is provided in the cam gear that rotates in the direction.
• it may be converted into a translational motion in the optical axis direction by a cam that rotates around an axis orthogonal to the optical axis, and the distance to the peripheral portion of the rotational axis force changes according to the position in the circumferential direction.
• the cam surface inclined to the plane orthogonal to the axis may be linearly driven along the plane orthogonal to the optical axis to convert into a translational motion in the optical axis direction.
• the cam portion 56b is arranged at a location different from the gear portion 56a, and the cam portion 56b and the gear portion 56a are formed in a circular shape having the same diameter around the rotation center axis of the cam gear 56.
• the cam gear 56 can be downsized. If the cam portion 56b and the gear portion 56a are required to be long in the circumferential direction, the cam portion 56b is formed inside the gear portion 56a and the detected portion 56f is formed inside the gear portion 56a.
• the cam gear 56 as a whole can be kept downsized while the cam portion 56b is long, and the gravity of the lens holder 22 can prevent slippage between the contact portion 22d and the central cam 56c. it can.
• the photoelectric sensor has a light emitting part and a light receiving part, and outputs a signal according to the amount of light as long as it changes the output signal according to the change in the reflected light of the light emitted from the light emitting part. It is not limited to things.
• a photoelectric sensor having a position detection element (PSD) or a two-division photodiode may be used as the photoelectric sensor, and the cam gear position may be specified based only on the change in the distance between the photoelectric sensor and the cam gear! / ,.
• the detected part only needs to be formed so as to change the reflected light as the cam gear rotates. Therefore, for example, only the first reflecting portion that reflects the light of the photoelectric sensor when the lens holder is at the first position is provided, and when the lens holder is at the second position, the light of the photoelectric sensor is You may make it not reflect at all.
• the present invention is not limited to the one provided on the inner peripheral side of the cam portion on the surface orthogonal to the optical axis of the cam gear. It is also possible to reflect the light and / or to set the detected part on the outer peripheral side of the cam part.
• the circumferential position of the first reflecting surface detected by the photoelectric sensor when the lens holding member abuts between the end portions of the cam portion may not overlap the cam portion.
• it may be provided at a position facing the cam portion across the rotation shaft.
• the length of the first reflecting surface is made shorter than the length of the cam portion, and the amount of deviation between the photoelectric sensor and the contact portion of the lens holder is set between the cam portion and the first reflecting surface. What is necessary is just to make it equal to deviation
• a lens A lens holder for holding the lens
• a lens base that holds the lens holder movably in the optical axis direction of the lens, a drive source,
• a cam gear that rotates around an axis parallel to the optical axis of the lens by the driving force of the driving source and drives the lens substrate;
• the cam gear is a first cam gear
• the lens holding body includes a contact portion that contacts the cam surface and is guided in the optical axis direction as the cam gear rotates.
• the output axis of the motor may not be in the direction orthogonal to the optical axis.
• the output axis of the motor may be parallel to the optical axis.
• various preferred embodiments similar to the invention of the present application may be included.
• the gear portion is provided in a part of the outer peripheral portion of the force gear
• the cam portion is provided in another part of the outer peripheral portion of the cam gear.
• a lens holder for holding the lens
• a lens base that holds the lens holder movably in the optical axis direction of the lens, a drive source,
• a cam gear that rotates by a driving force of the driving source and drives the lens base
• a photoelectric sensor is further provided that irradiates the cam gear with light and receives reflected light, and detects a position of the lens holder based on a change in the reflected light accompanying rotation of the cam gear.
• the output axis of the motor may not be in the direction orthogonal to the optical axis.
• the output axis of the motor may be parallel to the optical axis.
• the cam gear is not limited to one that rotates around an axis parallel to the optical axis, and may be a cam gear that rotates around an axis orthogonal to the optical axis, for example.
• various preferred embodiments similar to the invention of the present application may be included.
• the cam gear is set to be concentric with the cam portion, and has a detection portion that reflects light from the photoelectric sensor to the photoelectric sensor, and the detection portion includes a first lens holder.
• a first reflecting portion that reflects light of the photoelectric sensor force to the photoelectric sensor when in the position, and light from the photoelectric sensor when the lens holder is in the second position.
• a second reflecting portion having at least one of reflectance and a distance from the photoelectric sensor different from the first reflecting portion.
• a lens substrate for holding the lens A lens substrate for holding the lens
• a substrate for a shatter holding a shatter blade that opens and closes the optical path of the lens a substrate provided with an imaging device on which a light image is formed by the lens,
• the shirter base, the lens base, the cover member, and the substrate are laminated in this order.
• the substrate has a width equivalent to that of the shirter base, the lens base, and the cover member, and a flexible surface extending along the surface is provided on a surface of the substrate opposite to the surface on which the imaging element is provided. Only printed wiring boards are provided
• a lens substrate for holding the lens A lens substrate for holding the lens
• a substrate for a shatter holding a shatter blade that opens and closes the optical path of the lens a substrate provided with an imaging device on which a light image is formed by the lens,
• the shirter base, the lens base, the cover member, and the substrate are laminated in this order.
• the substrate has the same area as the shirter base, the lens base, and the cover member, and the surface on which the image pickup device is provided and the surface on the opposite side are provided on the surface on which the image pickup device is provided. Only electronic components are mounted
• the overall shape may not be a thin shape.
• various preferred embodiments similar to the invention of the present application may be included.

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• 2006
  • 2006-04-19 TW TW095113911A patent/TW200641499A/zh not_active IP Right Cessation
  • 2006-04-27 WO PCT/JP2006/308828 patent/WO2006118190A1/ja not_active Ceased

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