WO2006028004A1 - レンズバリア装置及びこれを備えた撮像装置 - Google Patents
レンズバリア装置及びこれを備えた撮像装置 Download PDFInfo
- Publication number
- WO2006028004A1 WO2006028004A1 PCT/JP2005/016078 JP2005016078W WO2006028004A1 WO 2006028004 A1 WO2006028004 A1 WO 2006028004A1 JP 2005016078 W JP2005016078 W JP 2005016078W WO 2006028004 A1 WO2006028004 A1 WO 2006028004A1
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- WO
- WIPO (PCT)
- Prior art keywords
- sector
- lens barrier
- barrier device
- sectors
- swing
- Prior art date
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/005—Diaphragms
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B11/00—Filters or other obturators specially adapted for photographic purposes
- G03B11/04—Hoods or caps for eliminating unwanted light from lenses, viewfinders or focusing aids
- G03B11/043—Protective lens closures or lens caps built into cameras
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
Definitions
- the present invention relates to a lens barrier device. More specifically, the present invention relates to a lens barrier device disposed in front of a lens barrel for protecting a photographing lens.
- Patent Document 1 discloses a lens barrel having a lens barrier.
- the focus motor is also used as a barrier drive motor, and the size of the camera is reduced by adopting a clutch mechanism.
- Patent Document 1 Japanese Patent Laid-Open No. 7-20369
- the lens barrel of Patent Document 1 has a structure in which the lens driving motor is also used for driving the lens barrier, and the driving force from the motor is set through a driving gear set to be long. It is transmitted to the swing ring.
- the driving force is transmitted using a simple spur gear.
- the position force at which the lens barrier that received the external impact stops may move unintentionally.
- the barrier blade once closed opens, so that the inside of the lens barrel cannot be reliably protected.
- an object of the present invention is to provide a small lens barrier device that can stably hold a swinging barrier blade (sector) in an open / close position.
- the above object is a lens barrier device including a swingable sector, a swinging member that swings the sector, and a drive unit that drives the swinging member.
- a lens barrier device in which a drive transmission member for irreversibly transmitting precursor power from the drive means to the swing member is disposed between the drive means and the drive means.
- the drive transmission member irreversibly transmits the driving force from the drive means to the swing member.
- an unstable operation of the swing member is restricted by the drive transmission member, so that it is possible to prevent a situation in which the sector is opened in the closed state.
- the drive means is stably driven by the drive transmission member, as a result, the sector can be rocked stably. Further, by using the drive transmission member, the sector can be held at the stop position without using a separate stagger mechanism, so that the size of the apparatus can be reduced.
- the swinging member is a swinging ring that is rotatable, the drive transmission member force S is a worm gear, and the worm gear meshes with a tooth row formed on the swinging ring. can do.
- Such a simple structure can be easily reduced in size by being incorporated in a lens barrier device.
- the sector may employ a structure including a first sector that is swung by the swinging member and a second sector that is swung along with the first sector. Oh ,.
- a lens barrier device that is further miniaturized can be obtained. If the lens barrel is equipped with the lens barrier device, the internal lens can be reliably protected, and if the force opens or closes when the sector is used, no problem arises.
- the invention's effect As described above, according to the present invention, it is possible to provide a small lens barrier device capable of stably holding a sector at an open / close position.
- FIG. 1 is a diagram showing a state when a lens barrier device is in a closed state.
- FIG. 2 is a side cross-sectional view of the lens barrier device of FIG. 1.
- FIG. 3 is a view showing a swing ring included in the lens barrier device.
- FIG. 4 is a diagram showing a state when the lens barrier device is in an open state.
- FIG. 5 is a view for explaining a series of operations of sectors included in the lens barrier device.
- FIG. 6 is a view shown for explaining a series of operations of sectors included in the lens barrier device.
- FIG. 7 is a diagram showing a state in which the sector is locked in the lens barrier device.
- FIG. 8 is a block diagram of a lens barrier device.
- FIG. 9 is a flowchart showing an example of processing until a sector is changed from an open state to a closed state and a locked state is formed.
- FIG. 10 is a diagram showing another embodiment.
- FIG. 11 is a block diagram of an imaging apparatus including a lens barrier device.
- Fig. 1 is a diagram showing a state in which the lens barrier device 1 is in a closed state
- Fig. 2 is a side sectional view of the lens barrier device 1 in Fig. 1
- Fig. 3 is a shake included in the lens barrier device 1.
- FIG. 3 is a view showing the moving ring 3 taken out.
- the lens barrier device 1 is used by being attached to the front side of a lens barrel of a camera.
- the three axes X, ⁇ , and Z are virtually set and used to facilitate understanding of the invention.
- the left side in the Z direction is the front side of the lens barrier device 1
- the right side is the back side.
- the lens barrel 4 is set on the back side as shown in the figure.
- the lens barrier device 1 includes four swinging sectors (blades) 11-14. More specifically, the lens barrier device includes the first inner sector 11 and the second inner sector 12, and the first outer sector 13 and the second inner sector 12. Including 14 outside sectors. These sectors 11 to 14 are swingably mounted on the sector substrate 2. An opening 2HL for photographing is formed in the central portion of the sector substrate 2. Further, as can be confirmed in FIG. 1, these sectors 11 to 14 swing around two support shafts 15 and 16 erected at predetermined positions of the sector substrate 2. The first inner sector 11 and the first outer sector 13 swing around the support shaft 15, and the second inner sector 12 and the second outer sector 14 swing around the support shaft 16. . As can be seen in FIG.
- the first inner sector 11 and the second inner sector 12 exist in the same plane, and are arranged so that the ends of each other abut each other when closed.
- the first outer sector 13 and the second outer sector 14 are arranged on the front side of the inner sectors 11 and 12 with a slight space therebetween. These sectors 11-14 will be described in detail later.
- a swing ring 3 as a swing member is disposed on the back side of the sectors 11 to 14 (right side in FIG. 2).
- FIG. 3 shows the swing ring 3 taken out for easy confirmation.
- the swing ring 3 swings in the circumferential direction to swing the sectors 11-14.
- the oscillating ring 3 is provided with a tooth row 37 on the periphery. This tooth row 37 is meshed with a worm gear 9W having a rotation axis in the X direction.
- the oscillating ring 3 receives driving force from the worm gear 9W and rotates in both directions.
- the rocking ring 3 has an opening 3HL for photographing at the center.
- the rocking ring 3 is formed with locking portions 31 and 32 for locking one ends of coil panels 21 and 22 that are two urging members. Openings 33 and 34 are formed in the peripheral portion where the other ends of the coil panels 21 and 22 are located.
- Each of the first inner sector 11 and the second inner sector 12 has projections 11PR and 12PR to which the other ends of the coil panels 21 and 22 are engaged. These protrusions 11PR and 12PR have their heads protruding to the opposite side of the swing ring 3 through the openings 33 and 34.
- the urging force of the coil panels 21 and 22 is applied to each of the first inner sector 11 and the second inner sector 12. More specifically, as shown in FIG. 1, the protrusion 11 of the first inner sector 11 is engaged with the other end of the PR force coil panel 21, and the protrusion 12PR of the second inner sector 12 is connected to the coil panel 22. Engage with the other end.
- a motor substrate 5 is disposed on the back side (right side in FIG. 2) of the rocking ring 3.
- the motor board 5 has an opening 5HL for photographing.
- the motor board 5 has a module as a driving means.
- Data 6 is fixed.
- a rotor kana (gear) 7 is fixed to the rotor shaft of the motor 6.
- the rotor kana 7 meshes with one gear 8a of the intermediate gear 8 formed as a two-stage gear.
- the other gear 8b of the intermediate gear 8 is engaged with a gear 9C that rotates integrally with the worm gear 9W.
- the rotor axis of the motor 6 is parallel to the Z axis
- the rotation axis of the worm gear 9W is parallel to the X axis. Therefore, as the one gear 8b and the gear 9C of the intermediate gear 8, for example, a bevel gear, a screw gear, or the like is used to change the rotation axis direction.
- the motor substrate 5 is disposed on the back portion of the swing ring 3 as described above, and the motor 6 that drives the sectors 11 to 14 is disposed on the substrate 5.
- This lens-noria device 1 has its own drive motor that has a configuration in which the lens barrel side force also obtains drive force like the built-in lens barrier generally adopted in the past, and the drive system is independent. Yes.
- the present apparatus 1 does not need to be provided with a long drive shaft or a switching mechanism in order to obtain a lens barrel side force driving force as in the prior art, so that the configuration can be simplified and reduced in size.
- the configuration on the lens barrel side where the present apparatus 1 is mounted can be simplified.
- the peripheral portion of the sector substrate 2 is covered in a cylindrical shape and functions as a housing of the apparatus 1.
- the sectors 11 to 14 and the swing ring 3 are arranged, and the motor 6 fixed to the motor board 5 is also housed integrally. Therefore, since this unit 1 is handled in this way, the apparatus 1 can be handled as an independent optical component, and therefore has versatility unlike a conventional lens barrier.
- the apparatus 1 can be formed so as to be detachable by being screwed into the lens barrel 4.
- the lens barrier device 1 has a configuration in which the driving force from the motor 6 is transmitted to the swing ring 3 through the worm gear 9W.
- the driving force (rotational force) of the worm gear 9 W is transmitted to the swing ring 3 by the tooth row 37.
- the worm gear 9 W force is restricted for the movement generated from the rocking ring 3. This is because the worm gear has a stronger self-stop function than the spur gear. That is, the worm gear 9W is arranged between the motor 6 and the swing ring 3, so that the driving force is irreversibly transmitted to the swing ring 3.
- the worm gear 9 W is connected to the tooth row 37 of the swing ring 3 as described above. Therefore, the rocking ring 3 is reliably moved to the desired position.
- the swing ring 3 is stably held at the stop position. Since the sectors 11 to 14 are oscillated based on the pivoting movement of the oscillating ring 3, the lens barrier device 1 can oscillate the sectors 11 to 14 with certainty, and further to this state. Can be held.
- FIG. 4 is a view showing a state when the lens barrier device 1 is in an open state.
- the open state of FIG. 4 is formed when the worm gear 9W is rotated clockwise by a predetermined number as viewed in the X direction from the closed state of FIG.
- the oscillating ring 3 moves a predetermined amount in the counterclockwise direction CCW.
- the sectors 11 to 14 are retracted from the openings to form an open state.
- the movement of the swing ring 3 is restricted by the worm gear 9W, as in the case of the close state. Therefore, the sectors 11 to 14 are stably opened.
- the lens barrier device 1 employs a configuration in which the opening is closed using four sectors 11 to 14. In this way, downsizing is achieved by using a plurality of sectors.
- 5 and 6 are diagrams for explaining a series of operations of the sectors 11 to 14 included in the lens barrier device 1.
- FIG. FIG. 5 (A) is a diagram showing the first inner sector 11 and the second inner sector 12 taken out and the position force in the closed state shown in FIG. 1 up to the position in the opened state shown in FIG. .
- sectors 11 and 12 in the open state are shown by two-dot chain lines.
- FIG. 5B is a diagram showing the first outer sector 13 and the second outer sector 14 taken out in the same manner.
- each sector has a thin leaf shape, the portion that fits with the support shafts 15 and 16 that are the center of oscillation is reinforced.
- Ring-shaped convex portions 11RN to 14RN are formed in a body-like manner at portions that are fitted to the spindles of the sectors 11 to 14.
- the ring-shaped convex portions 11RN to 14RN act as bearings so that an area in contact with the support shafts 15 and 16 is ensured and each sector performs a stable swinging motion.
- the ring-shaped convex portions 11RN to 14RN are arranged so that the first inner sector 11 and the first outer sector 13, the first inner sector 11, the swing ring 3, and the first outer sector 13 that are arranged to face each other.
- the distance between the sector substrate 2 and the second inner sector 12 and the second outer sector 14, the second inner sector 12 and the swing ring 3, and the second outer sector 14 and the sector substrate 2 are constant. It also functions as a spacer to maintain
- the first outer sector 13 and the second outer sector 14 are a first inner sector 11 and a second inner sector 1 When 2 swings, it is configured to follow (turn) along with this.
- a configuration in which the first inner sector 11 and the second inner sector 12 are swung will be described, followed by a configuration in which the first outer sector 13 and the second outer sector 14 follow.
- the protruding portions 11PR and 12PR of the first inner sector 11 and the second inner sector 12 are connected to one ends of the coil panels 22 and 23 through the openings 33 and 34 of the swing ring 3. That is, the swing ring 3 is located between the coil panels 21 and 22 and the inner sectors 11 and 12.
- the protrusions 11PR and 12PR and the coil panels 21 and 22 are not shown.
- the protrusions 11PR and 12PR protrude rightward (the back side of the device 1), and the swing ring 3 One ends of the coil panels 21 and 22 arranged on the back side are engaged.
- a recess (not shown) on the back side of the swing ring 3 is formed, and the coil panels 21 and 22 are accommodated in the recess.
- FIG. 4 When the swing ring 3 rotates a predetermined amount in the clockwise direction CW, the closed state of FIG. 1 is obtained.
- Fig. 4 Force When the swing ring 3 starts to move in the clockwise direction CW, the openings 33 and 34 move away from the projections 11PR and 12 PR. The projections 11PR and 12PR are also moved into the swing ring 3 by the biasing force of the coil panels 21 and 22.
- the inner sectors 11 and 12 are brought into contact with each other based on the urging force of the coil panels 21 and 22 to form a closed state.
- FIG. 6 shows the four sectors 11 to 14 in more detail.
- Fig. 6 (A) shows the four sectors in the closed state shown in Fig. 1.
- Figure 6 (B) is shown in Figure 4. Show the state of the four sectors in the open state.
- the first outer sector 13 has an abutting piece 13MT-1 that abuts against the first inner sector 11 when the first inner sector 11 moves in the closing direction.
- the first inner sector 11 swings in the direction of the arrow as shown in FIG. 6 (A)
- the first inner sector 11 pushes the contact piece 1 3MT-1 of the first outer sector 13.
- the first outer sector 13 follows the first inner sector 11.
- the second outer sector 14 also has a contact piece 14MT-1, and performs the same swinging operation.
- the first outer sector 13 has a contact piece 13MT-2 at another position as shown in FIG. 6 (B).
- This abutting piece is arranged at a position where it abuts on the first inner sector 11 when the first inner sector 11 moves to the open position as shown by an arrow. Therefore, the first outer sector 13 opens following the first inner sector 11.
- the second inner sector 12 and the second outer sector 14, and the contact piece 14MT-2 is arranged. Therefore, as shown in FIGS. 1 and 4, when the swing ring 3 rotates, the four sectors 11 to 14 draw a predetermined trajectory and swing to form a closed and open state. In the closed state shown in FIG. 1, the four sectors 11 to 14 cooperate to close the opening, thereby preventing entry of dust or sand into the interior. It is to be noted that downsizing is also achieved by adopting a structure in which the sector is divided in this way and the outer sector is rocked by the inner sector.
- the peristaltic ring 3 is kept stationary by the worm gear 9W. Therefore, in the lens barrier device 1, the situation in which the sectors 11 to 14 are opened in the closed state due to the unintentional movement of the swing ring 3 and the situation in which the sector is closed in the open state are prevented. Further, since the swing ring 3 is reliably moved by the worm gear 9W, the swing operation of the sectors 11 to 14 is stabilized.
- FIG. 7 is a diagram showing a state in which the sectors 11 to 14 are in the locked state in the lens barrier device 1.
- the protrusions 11PR and 12PR of the inner sectors 11 and 12 are located inside without contacting the ends of the openings 33 and 34. That is, the inner sectors 11 and 12 are maintained at positions where the opening 2HL of the sector substrate 2 is closed by the biasing force of the coil springs 21 and 22.
- the opening 3HL of the swing ring 3 and the opening 5HL of the motor board 5 described above are based on this sector. It is formed at a position corresponding to the opening 2HL of the plate 2 (see Fig. 2).
- the swing ring 3 Since the swing ring 3 is reliably stopped by the worm gear 9 W even when the inner sectors 11, 12 are in the position to close the opening 2HL as described above, the swing ring 3 may be moved unintentionally. No more sectors will open. However, it is more preferable to have a structure that can reliably maintain the closed state even when an external force is applied to the sector itself. Therefore, this device 1 has a configuration that can reliably hold the sector in the closed state.
- the locked state in FIG. 7 is formed by further rotating the swing ring 3 in the clockwise direction CW against the biasing force of the coil panels 21 and 22 in the closed state force in FIG.
- the opening 33 comes into contact with the protrusion 11PR of the first inner sector 11 at the end opposite to the open state (FIG. 4).
- the end of the opening 34 comes into contact with the protrusion 12PR of the second inner sector 12.
- the amount of engagement between the worm gear 9W and the tooth row 37 is designed so that the closing state force shown in FIG. 1 and the worm gear 9W can rotate. Therefore, the worm gear 9W can be rotated one more stage from the state shown in FIG.
- the worm gear 9W first restricts (locks) the movement of the swing ring 3 as described above.
- the ends of the openings 33 and 34 of the swing ring 3 are in contact with the protrusions 11PR and 12PR, the movement of the inner sectors 11 and 12 is restricted.
- the outer sectors 13 and 14 are regulated by the inner sectors 11 and 12 by the above-described configuration. Therefore, in the locked state shown in FIG. 7, the closed state of the sectors 11 to 14 can be more reliably maintained, so that a structure that shields the front surface of the lens barrel 4 to protect the inside is realized.
- the lens barrier device 1 is provided with a switch mechanism for detecting the states of the sectors 11 to 14.
- the switch mechanism will be described with reference to Fig. 1 (closed), Fig. 4 (open) and Fig. 7 (lock).
- a switch piece 55 forming a part of the switch mechanism 50 is fixed to the upper left of the motor board 5.
- the switch piece 55 is formed of a conductive member, and an end portion of the switch piece 55 rises from the motor substrate 5 to form a contact piece 56.
- coil-shaped conductive panels 51, 52 serving as switches are arranged. One end of each of the panels 51 and 52 is locked to the motor base plate 5.
- One end of the engagement is electrically connected to the switch piece 55 on the back side of the motor substrate 5.
- the other ends of the panels 51 and 52 are free ends 51f and 52f, and come into contact with the contact piece 56 of the switch piece 55. Arranged to be possible. Further, the swing ring 3 described above has a protrusion 35 that abuts against the free ends 51f and 52f when it rotates (see FIG. 3). A switch mechanism 50 is formed including the projection 35 of the swing ring 3.
- FIG. 8 is a block diagram of the lens barrier device 1.
- the lens barrier device 1 includes a control unit 57 that monitors ON and OFF of SW1 and SW2.
- the control unit 57 is configured around a CPU, and a memory unit 58 is connected thereto.
- the memory unit 58 includes a ROM for storing a program related to the operation of the apparatus 1 and a RAM for providing a calculation processing area.
- the control unit 57 reads a predetermined program from the memory unit 58, and controls the motor 6 that drives the worm gear 9W via the drive circuit 59.
- FIG. 8 shows an example of the configuration when the lens barrier device 1 includes a control unit 57 and a memory unit 58.
- the control unit 57 and the memory unit 58 shown here are realized by the lens barrel 4 to which the lens barrier device 1 is connected or a control device built in the camera (not shown) side including the lens barrel 4 You may employ
- FIG. 9 shows the processing until the sectors 11 to 14 of the lens barrier device 1 are opened (FIG. 4) and the force is also closed (FIG. 1), and further the locked state (FIG. 7) is formed.
- This is a flow chart showing an example. The processing of this flowchart is executed by the control unit 57. This flow chart is activated, for example, when the lens barrier device 1 or a no-close switch (not shown) provided on the camera side is turned on.
- the control unit 57 confirms that SW1 (51 in FIG. 4) is off (S10).
- This flow chart is executed when closing the open state force sector shown in FIG. It is normal that the free end 51f is separated from the contact piece 56 of the switch piece 55 by the projection 35 and turned off. Therefore, if the off state cannot be confirmed in step 10, the control unit 57 It is determined that there is an abnormality, and the processing of this flowchart is stopped.
- control unit 57 When the control unit 57 confirms that SW1 is turned off in Step 10, the controller 57 drives the motor 6 in a predetermined step (eg, 3 steps) in the closing direction (Sl l), and SW1 turns on. (S12) If SWl does not turn on after executing Step 12 once, the controller 57 adds 1 to the memory A and drives the motor 6 again (S16). If SW1 does not turn on after repeating this process, for example, three times, it is determined that there is an abnormality and the process is stopped (S17).
- a predetermined step eg, 3 steps
- SW1 turns on.
- control unit 57 further drives motor 6 in the closing direction until SW2 (52 in FIG. 1) is turned off (S13, S14). ). This process forms the closed state of FIG. Thereafter, the control unit 57 drives the predetermined step motor 6 set in advance in the closing direction (S15). The last motor drive forms the locked state of FIG. 7 and the processing according to this flowchart is terminated.
- the driving force is transmitted from the motor 6 in the direction of the rocking ring 3 ⁇ — via the warm gear 9W.
- the tooth row 37 of the worm gear 9W and the oscillating ring 3 is engaged, and the oscillating ring 3 is rotated by the rotation of the worm gear 9W, so that the sectors 11 to 14 can be oscillated reliably.
- the movement of the oscillating ring 3 after stopping is reliably regulated by the worm gear 9W.
- the sectors 11 to 14 can be maintained in an open state and a closed state.
- This lens barrier device may be realized with a structure that is detachable from the lens barrel 4 or may be realized with a structure that is integrally set on the front surface of the lens barrel 4.
- the openings 33 and 34 provided in the swing ring 3 are made longer openings 33 ′ and 34 ′ in the swing direction of the protrusions 11PR and 12PR, and the locked state of FIG. At this time, the protrusions 11PR and 12PR may be prevented from coming into contact with the openings 33 and 34 '.
- the openings 33, 34 'longer than the openings 33, 34 there is room for the protrusions 11PR, 12PR to move even when shifting to the closed state or in the locked state. , 12 movement in the opening direction is possible. In this way, when in the locked state, the rocking ring 3 is moved from the closed state in FIG.
- the urging force of the coil panels 21 and 22 is even stronger and it is difficult to open even if an external force is applied. Also, even if a foreign object is caught between sectors 11 and 12 during the transition to the closed state, the projections 11PR and 12PR are not in contact with the openings 33 and 34, so the coil panels 21 and 22 are attached. The movement in the opening direction of the sectors 11 and 12 can be allowed against the forces. For this reason, even if a foreign object is caught in the closed state or in the locked state, the sectors 11 and 12 can move in the opening direction relative to the swing ring 3, so that it is impossible for the swing ring 3 and the worm gear 9W. No force is applied and there is no risk of damage to gears.
- FIG. 11 is a block diagram for explaining an image pickup apparatus including the lens barrier device of the present invention.
- the imaging apparatus of this embodiment is roughly divided into a lens barrier apparatus 1, a camera unit 100, a camera DSP (Digital Signal Processor) 200, and an SDR AM (Synchronous Dynamic Random Access Memory).
- the external iZF is provided with 900, and the recording medium 1000 is detachable.
- the recording medium 1000 is a so-called memory card using a semiconductor memory, an optical recording medium such as a recordable DVD (Digital Versatile Disc) or a recordable CD (Compact Disc), and a variety of magnetic disks.
- a memory card is used as the recording medium 1000, for example.
- the lens barrier device 1 includes the swing ring 3, the switch mechanism 50, the drive circuit 59, and the motor 6 that drive the sectors 11 to 14 having the above-described configuration.
- the camera unit 100 includes an optical block 101, a CCD (Charge Coupled Device) 102, a preprocessing circuit 103, an optical block driver 104, a CCD driver 105, and a timing generation circuit 106.
- the optical block 101 includes a lens, a focus mechanism, a shirter mechanism, a diaphragm (iris) mechanism, and the like.
- control unit 57 is configured to be connected to a CPU (Central Processing Unit) 501 and a clock circuit 502 force system node 503, and can control each unit of the imaging apparatus of this embodiment. Is.
- the clock circuit 502 can measure the current date, current day, current time, and provide shooting date and time.
- the memory unit 58 includes a RAM ( Random Access Memory) 58a and Flash ROM (Read Only Memory) 58b; ⁇ and are connected to the controller 57.
- the RAM 58a is mainly used as a work area, such as temporarily storing intermediate results of processing.
- the flash ROM 58b stores various programs executed by the CPU 501 and data necessary for processing.
- the CPU 501 controls the motor 6 via the drive circuit 59. Since the details of the operation of the lens barrier device 1 have been described above, they will be omitted.
- the open / close state of sectors 11 to 14 can be detected by the switch mechanism 50, and the data force relating to the on / off state of each SW1 and SW2 is output from the switch mechanism 50 to the control unit 57.
- the CPU 501 can control the opening / closing operations of the sectors 11 to 14 by controlling the drive circuit 59 and the motor 6 according to the states of SW1 and SW2.
- the optical block driver 104 At the time of photographing an image, the optical block driver 104 generates a drive signal for operating the optical block 101 in accordance with the control from the control unit 57, and this is sent to the optical block 101. To supply the optical block 101 for operation.
- the optical block 101 controls a focus mechanism, a shirter mechanism, and an aperture mechanism in accordance with a drive signal from the driver 104, captures an image of a subject, and provides it to the CCD.
- the CCD 102 photoelectrically converts an image from the optical block 101 and outputs it.
- the CCD 102 operates in accordance with a drive signal from the CCD driver 105, captures the subject shape from the optical block 101 as an image,
- the timing generation circuit 106 controlled by the control unit 57 supplies the captured subject image (image information) to the preprocessing circuit 103 as an electrical signal based on the timing signal.
- the timing generation circuit 106 forms a timing signal that provides a predetermined timing in accordance with the control from the control unit 57.
- the CCD driver 105 forms a drive signal to be supplied to the CCD 102 based on the timing signal from the timing generation circuit 106.
- the pre-processing circuit 103 performs CDS (Correlated Double Sampling) processing on the image information of the electrical signal supplied to the pre-processing circuit 103 to maintain a good SZN ratio, and to achieve AG C (Automatic Gain Control) process to control the gain and AZD (Analog / Di gital) conversion is performed to form digital signal image data.
- Image data converted into a digital signal from the preprocessing circuit 103 is supplied to the DSP 200.
- the DSP 200 performs camera signal processing such as AF (Auto Focus), AE (Auto Exposure), and AWB (Auto White Balance) on the image data supplied thereto under the control of the CPU 501.
- the image data adjusted in this way is compressed by a predetermined compression method and supplied to the recording medium 1000 loaded in the imaging apparatus of this embodiment through the system bus 503 and the medium IZF 400, which will be described later. As it is, it is recorded as a file on the recording medium 1000.
- the image data recorded on the recording medium 1000 is recorded on the recording medium through the medium IZF 400 in response to an operation input by the user through the operation unit 600 having power such as a touch panel and a control key. This is read from 1000 and supplied to the DSP 200.
- the DSP 200 reads the image data read from the recording medium 1000 and supplied through the medium IZF400 !, and performs decompression processing (decompression processing) of the data compression.
- the image data is supplied to the LCD controller 700 through the system bus 503.
- the LCD controller 700 also forms an image signal to be supplied to the LCD 800 with the image data power supplied thereto, and supplies this to the LCD 800. As a result, an image corresponding to the image data recorded on the recording medium 1000 is displayed on the display screen of the LCD 800.
- the image display form follows the display processing program recorded in the ROM 58b.
- this display processing program is a program that describes how a file system described later is recorded and how it reproduces an image.
- the imaging apparatus of this embodiment is provided with an external IZF900. Through this external IZF900, for example, it connects to an external personal computer, receives image data from the personal computer, records it on a recording medium loaded in its own machine, and loads it into its own machine. The image data recorded on the recorded recording medium can be supplied to an external personal computer or the like.
- a communication module to the external IZF900, for example, it is connected to a network such as the Internet, and various image data and other information are transmitted through the network.
- Information can be obtained and recorded on the recording medium loaded in the machine, or the data recorded on the recording medium loaded in the machine can be transmitted to the target party via the network. It can be done.
- information such as image data acquired through an external personal computer or network and recorded on a recording medium is read out and reproduced by the imaging apparatus of this embodiment, displayed on the LCD 800, and displayed by the user. Of course it can be used.
- the external IZF900 can be provided as a wired interface such as IEEE (Institute of Electrical and Electronics Engineers) 1394, U3 ⁇ 4B (Universal Senal Bus), or as a wireless interface using light or radio waves. Is also possible. That is, the external IZF 900 may be a wired or wireless interface.
- IEEE Institute of Electrical and Electronics Engineers 1394
- U3 ⁇ 4B Universal Senal Bus
- the imaging apparatus of this embodiment can capture an image of a subject and record it on a recording medium loaded in the imaging apparatus, as well as an image recorded on the recording medium. Data can be read out and reproduced and used. It is also possible to receive image data through an external personal computer or network and record it on a recording medium loaded in the device, or read it out and play it back.
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Blocking Light For Cameras (AREA)
- Camera Bodies And Camera Details Or Accessories (AREA)
Abstract
Description
Claims
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JP2006535711A JP4467579B2 (ja) | 2004-09-09 | 2005-09-02 | レンズバリア装置及びこれを備えた撮像装置 |
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JP2004263107 | 2004-09-09 | ||
JP2004-263107 | 2004-09-09 |
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WO2006028004A1 true WO2006028004A1 (ja) | 2006-03-16 |
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PCT/JP2005/016078 WO2006028004A1 (ja) | 2004-09-09 | 2005-09-02 | レンズバリア装置及びこれを備えた撮像装置 |
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WO (1) | WO2006028004A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010190991A (ja) * | 2009-02-16 | 2010-09-02 | Nittoh Kogaku Kk | レンズバリア装置 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH052130U (ja) * | 1991-06-21 | 1993-01-14 | 株式会社コパル | 光学機器の羽根開閉装置 |
EP0788020A1 (en) * | 1996-01-30 | 1997-08-06 | Canon Kabushiki Kaisha | Protection cover device and protection-cover-equipped apparatus |
US5971630A (en) * | 1996-01-26 | 1999-10-26 | Asahi Kogaku Kogyo Kabushiki Kaisha | Camera with lens barrier apparatus |
JP2000180915A (ja) * | 1998-12-14 | 2000-06-30 | Nidec Copal Corp | シャッタ幕速調整機構用のウォ―ムギア緩み防止装置 |
JP2001005047A (ja) * | 1999-06-25 | 2001-01-12 | Sanyo Electric Co Ltd | レンズ保護機構を具えたカメラ機器 |
JP2003114460A (ja) * | 2001-10-05 | 2003-04-18 | Canon Inc | シャッタ装置および光学機器 |
JP2004184585A (ja) * | 2002-12-02 | 2004-07-02 | Minolta Co Ltd | カメラ用レンズバリアユニット |
US20050005260A1 (en) * | 2003-07-02 | 2005-01-06 | Michael Antonov | Identifier implementation mapping and methods of using namespaces |
-
2005
- 2005-09-02 WO PCT/JP2005/016078 patent/WO2006028004A1/ja active Application Filing
- 2005-09-02 JP JP2006535711A patent/JP4467579B2/ja not_active Expired - Fee Related
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH052130U (ja) * | 1991-06-21 | 1993-01-14 | 株式会社コパル | 光学機器の羽根開閉装置 |
US5971630A (en) * | 1996-01-26 | 1999-10-26 | Asahi Kogaku Kogyo Kabushiki Kaisha | Camera with lens barrier apparatus |
EP0788020A1 (en) * | 1996-01-30 | 1997-08-06 | Canon Kabushiki Kaisha | Protection cover device and protection-cover-equipped apparatus |
JP2000180915A (ja) * | 1998-12-14 | 2000-06-30 | Nidec Copal Corp | シャッタ幕速調整機構用のウォ―ムギア緩み防止装置 |
JP2001005047A (ja) * | 1999-06-25 | 2001-01-12 | Sanyo Electric Co Ltd | レンズ保護機構を具えたカメラ機器 |
JP2003114460A (ja) * | 2001-10-05 | 2003-04-18 | Canon Inc | シャッタ装置および光学機器 |
JP2004184585A (ja) * | 2002-12-02 | 2004-07-02 | Minolta Co Ltd | カメラ用レンズバリアユニット |
US20050005260A1 (en) * | 2003-07-02 | 2005-01-06 | Michael Antonov | Identifier implementation mapping and methods of using namespaces |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010190991A (ja) * | 2009-02-16 | 2010-09-02 | Nittoh Kogaku Kk | レンズバリア装置 |
Also Published As
Publication number | Publication date |
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JPWO2006028004A1 (ja) | 2008-05-08 |
JP4467579B2 (ja) | 2010-05-26 |
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