WO2017090230A1 - 撮像装置 - Google Patents

撮像装置 Download PDF

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Publication number
WO2017090230A1
WO2017090230A1 PCT/JP2016/004698 JP2016004698W WO2017090230A1 WO 2017090230 A1 WO2017090230 A1 WO 2017090230A1 JP 2016004698 W JP2016004698 W JP 2016004698W WO 2017090230 A1 WO2017090230 A1 WO 2017090230A1
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WO
WIPO (PCT)
Prior art keywords
camera
illumination
pan
light shielding
tilt
Prior art date
Application number
PCT/JP2016/004698
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
和田　穣二
良仁 浦島
Original Assignee
パナソニックＩｐマネジメント株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by パナソニックＩｐマネジメント株式会社 filed Critical パナソニックＩｐマネジメント株式会社
Publication of WO2017090230A1 publication Critical patent/WO2017090230A1/ja

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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
    • G03B15/00—Special procedures for taking photographs; Apparatus therefor
    • 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
    • G03B15/00—Special procedures for taking photographs; Apparatus therefor
    • G03B15/02—Illuminating scene
    • G03B15/03—Combinations of cameras with lighting apparatus; Flash units
    • G03B15/05—Combinations of cameras with electronic flash apparatus; Electronic flash units
    • 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
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/56—Accessories
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/56—Cameras or camera modules comprising electronic image sensors; Control thereof provided with illuminating means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70—Circuitry for compensating brightness variation in the scene
    • H04N23/75—Circuitry for compensating brightness variation in the scene by influencing optical camera components
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment

Definitions

  • the present disclosure relates to an imaging apparatus.
  • a surveillance camera that manually pans and tilts a camera, such as the dome-type surveillance camera device of Patent Document 1, adjusts the imaging direction by manually panning and tilting, and then shields the camera lens.
  • illumination light for example, infrared light
  • an electric image pickup device such as a dome-type surveillance camera
  • whose panning or tilting motor drives the panning or tilting rotation of the camera is attached with a light shielding member (packing or the like) surrounding the lens in close contact with the inner surface of the dome.
  • a light shielding member packing or the like
  • the present disclosure has been made in view of the above circumstances, and provides an imaging device in which an illumination device can be incorporated in a dome cover that is internally rotated by a camera.
  • An imaging apparatus includes a pan rotation member that is driven to rotate around a center of pan rotation by a pan motor, a camera supported by the pan rotation member, and a dome cover that covers the camera with the lens optical axis of the camera in the radial direction.
  • a cylindrical light-shielding member that stands up from the inner surface of the dome cover and surrounds the camera, and a proximal end is fixed to the pan rotation member, and a bent portion that bends in a crank shape is brought close to the standing tip of the cylindrical light-shielding member without contact.
  • An illumination support member disposed in an annular illumination chamber having a distal end sandwiched between a dome cover and a cylindrical light shielding member, and an illumination device disposed in the annular illumination chamber supported by the distal end of the illumination support member.
  • the lighting device can be built in the dome cover that is electrically driven and rotated inside by the camera.
  • FIG. 1 is a longitudinal sectional view of the surveillance camera according to the first embodiment viewed from the front.
  • 2 is a side sectional view of the surveillance camera shown in FIG.
  • FIG. 3 is a perspective view of main parts of the camera unit and the illumination device shown in FIG.
  • FIG. 4 is a perspective view of main parts when FIG. 3 is viewed from the left side.
  • FIG. 5 is a perspective view in which a portion of the dome cover shown in FIG. 1 is cut away.
  • 6 is an enlarged view of a main part in the vicinity of the concave circumferential groove shown in FIG.
  • FIG. 7 is a block diagram illustrating a configuration example of a control system of the surveillance camera.
  • FIG. 8 is a longitudinal sectional view of the surveillance camera according to the second embodiment viewed from the front.
  • FIG. 8 is a longitudinal sectional view of the surveillance camera according to the second embodiment viewed from the front.
  • FIG. 9 is a side sectional view of the surveillance camera shown in FIG. 10 is a perspective view of main parts of the camera unit and the illumination device shown in FIG.
  • FIG. 11 is a perspective view of main parts when FIG. 10 is viewed from the left side.
  • FIG. 12 is an explanatory diagram of the operation of the illumination device according to the second embodiment.
  • FIG. 13 is an enlarged sectional view of a part of a surveillance camera according to another embodiment.
  • a surveillance camera with a dome-shaped cover attached and driven to rotate electrically will be described as an example of the imaging device.
  • FIG. 1 is a longitudinal sectional view of the surveillance camera 11 according to the first embodiment as viewed from the front.
  • FIG. 2 is a side sectional view of the monitoring camera 11 shown in FIG.
  • the surveillance camera 11 has a pan rotation member 13, a camera 15, a dome cover 17, a cylindrical light shielding member 19, an illumination support member 21, and an illumination device 23 as main members.
  • the surveillance camera 11 has a circular conical side cover 25 whose outer surface is open in a circular shape and gradually decreases in diameter in the vertical direction.
  • the upper end of the cover 25 is a connection pipe 27 that is fixed (suspended) to a support column or the like.
  • a power supply line and a signal line are drawn into the connection pipe 27 from a column or the like.
  • the camera 15 is housed inside the cover 25.
  • the opening portion 29 on the lower surface of the cover 25 opens toward the imaging direction of the camera 15.
  • the horizontal axis pan axis fixing plate 31 is fixed to the cover 25 on the back side (vertical direction upper side) from the opening part 29.
  • a cylindrical pan shaft 33 is fixed to the lower surface of the pan shaft fixing plate 31 by a pan shaft fixing screw 35 coaxially with the center of the connection pipe 27.
  • a pan gear 37 including a spur gear is formed on the outer periphery of the pan shaft 33.
  • the center of the pan axis 33 is the pan rotation center Pc.
  • a cylindrical pan rotation shaft 39 is coaxially connected to the pan shaft 33 and is rotatably inserted into the inner diameter side of the pan shaft 33.
  • Rolling bearings are provided between the inner periphery of the pan shaft 33 and the outer periphery of the pan rotation shaft 39.
  • the rolling bearing for example, an angular bearing is used, and the pan rotating shaft 39 does not move in the axial direction with respect to the pan shaft 33 (in particular, the pan rotating shaft 39 does not fall off from the pan shaft 33) and is supported rotatably. is doing.
  • a power supply line and a signal line are inserted inside the cylindrical pan rotation shaft 39.
  • the pan rotating member 13 is fixed to the pan rotating shaft 39.
  • the pan rotation member 13 is integrated with the pan rotation shaft 39 and rotates with respect to the pan shaft 33. That is, the pan rotating member 13 is driven to rotate by the pan motor 41 about the pan rotation center Pc.
  • a pan motor 41 having a drive shaft protruding upward in the vertical direction is fixed to the upper surface of the pan rotation member 13.
  • a pan motor worm 43 is fixed to the drive shaft of the pan motor 41.
  • a pan interlocking shaft 45 is rotatably supported by the pan rotation member 13 between the pan motor 41 and the pan shaft 33 along a direction perpendicular to the pan rotation center Pc.
  • a pan worm wheel 47 that meshes with the pan motor worm 43 is fixed to one end of the pan interlocking shaft 45.
  • a pan shaft worm 49 that meshes with the pan gear 37 is fixed to the other end of the pan interlocking shaft 45. Accordingly, when the pan motor 41 is driven and the pan motor worm 43 transmits the rotation to the pan worm wheel 47 of the pan interlocking shaft 45, the pan interlocking shaft 45 is rotated. As the pan interlocking shaft 45 rotates, the pan shaft worm 49 rotates around the outer periphery of the fixed pan gear 37. That is, the pan shaft worm 49 revolves around the pan shaft 33. Thereby, the pan rotation member 13 is driven to rotate around the pan rotation center Pc.
  • the pan rotating member 13 is provided with a pair of parallel camera support side plates 51 projecting downward (hanging down).
  • a tilt shaft 53 orthogonal to the pan rotation center Pc is rotatably supported by the pair of camera support side plates 51.
  • the center of the tilt shaft 53 is the tilt rotation center Tc.
  • a flat cylindrical (see FIG. 3) camera unit 55 is fixed to the tilt shaft 53 coaxially with the tilt rotation center Tc between the pair of camera support side plates 51.
  • the camera unit 55 accommodates the camera 15 inside a cylindrical camera cover 57.
  • the camera 15 includes a lens 59 and an image sensor (not shown).
  • the camera 15 is accommodated so that the lens optical axis Oc of the lens 59 is perpendicular to the tilt rotation center Tc.
  • the lens 59 of the camera 15 is exposed on the camera cover 57. That is, the camera 15 is supported by the pan rotation member 13 via the tilt shaft 53.
  • the image sensor of the camera 15 includes, for example, a CCD (Charge Coupled Device) or a CMOS (Complementary Metal Oxide Semiconductor) image sensor.
  • the image sensor receives imaging light from the lens 59 and converts an optical signal into an electrical signal.
  • a tilt gear 61 including a spur gear is fixed to the tilt shaft 53 fixed integrally with the camera unit 55.
  • a tilt motor 63 is fixed to one of the pair of camera support side plates 51 with the drive shaft in a direction along the tilt rotation center Tc.
  • a tilt motor worm 65 is fixed to the drive shaft of the tilt motor 63.
  • a tilt interlocking shaft 67 in a direction perpendicular to the tilt rotation center Tc is rotatably supported between the tilt motor 63 and the tilt gear 61.
  • a tilt worm wheel 69 that meshes with the tilt motor worm 65 is fixed to one end of the tilt interlocking shaft 67.
  • a tilt shaft worm 71 that meshes with the tilt gear 61 is fixed to the other end of the tilt interlocking shaft 67.
  • the tilt interlocking shaft 67 is rotated.
  • the tilt shaft worm 71 rotates the tilt gear 61 fixed to the tilt shaft 53.
  • the camera unit 55 is tilted and rotated about the tilt rotation center Tc together with the tilt shaft 53.
  • the cover 25 is an open portion 29 having a circular bottom surface.
  • a dome cover 17 is provided at the opening 29 of the cover 25.
  • the dome cover 17 covers the camera unit 55 (camera 15) with the lens optical axis of the camera 15 in the radial direction.
  • the dome cover 17 has a cylindrical light shielding member 19 inside.
  • the cylindrical light shielding member 19 has a light shielding property that blocks transmission of infrared light and visible light by the material itself or by surface treatment or the like.
  • the cylindrical light shielding member 19 stands up from the inner surface of the dome cover 17 and surrounds the camera unit 55 (camera 15).
  • FIG. 3 is a perspective view of main parts of the camera unit 55 and the illumination device 23 shown in FIG.
  • FIG. 4 is a perspective view of essential parts when FIG. 3 is viewed from the left side.
  • the illumination support member 21 is fixed to the pan rotation member 13.
  • the base end of the illumination support member 21 is fixed to the pan rotation member 13.
  • the illumination support member 21 has, for example, a bent portion 73 that is bent in a crank shape at the center portion formed in a long rectangular plate shape.
  • the illumination support member 21 causes the bent portion 73 to approach the standing tip 75 of the cylindrical light shielding member 19 in a non-contact manner.
  • the front end of the illumination support member 21 is disposed in an annular illumination chamber 77 sandwiched between the dome cover 17 and the cylindrical light shielding member 19.
  • a lighting device 23 is provided at the tip of the lighting support member 21.
  • the illumination device 23 is supported at the tip of the illumination support member 21 and is disposed in the annular illumination chamber 77.
  • the lighting device 23 has a lighting unit 79.
  • the illumination unit 79 has, for example, a cylindrical illumination cover 81 as an outer shell.
  • the illumination unit 79 is provided with, for example, an infrared LED.
  • the illumination unit 79 includes an illumination lens 83 that condenses the emitted light of the infrared LED on one end surface of the illumination cover 81.
  • the optical axis Sc of the illumination lens 83 is oriented in the same direction as the lens optical axis Oc.
  • the camera 15 is provided on the pan rotation member 13 so as to be freely tilt-driven by the tilt motor 63 about the tilt rotation center Tc orthogonal to the pan rotation center Pc.
  • the illumination support member 21 is fixed to the pan rotation member 13, so that one illumination device 23 is arranged away from the camera 15 on the radially outer side of the tilt rotation center Tc.
  • a pair of parallel illumination support side plates 85 is fixed to the tip of the illumination support member 21.
  • the illumination support side plate 85 is parallel to the camera support side plate 51 described above.
  • An illumination tilt axis 87 in the same direction as the tilt axis 53 is supported between the pair of illumination support side plates 85.
  • the illumination tilt shaft 87 rotatably supports the illumination unit 79. That is, the camera unit 55 and the illumination unit 79 can be rotated by the tilt axis 53 and the illumination tilt axis 87 in the same direction.
  • An illumination motor 89 whose drive shaft is in the same direction as the illumination tilt shaft 87 is fixed to one of the pair of illumination support side plates 85.
  • a drive pulley 91 is fixed to the drive shaft of the illumination motor 89.
  • a driven pulley 93 is fixed to an illumination tilt shaft 87 that rotates integrally with the illumination unit 79.
  • a belt 95 that transmits rotation is stretched between the driving pulley 91 and the driven pulley 93. Accordingly, when the illumination motor 89 is driven and the drive pulley 91 rotates, the rotation is transmitted to the driven pulley 93 via the belt 95. As a result, the illumination unit 79 is tilted and driven via the illumination tilt shaft 87 fixed to the driven pulley 93.
  • FIG. 5 is a perspective view in which a part of the dome cover 17 shown in FIG. 1 is cut away.
  • the dome cover 17 includes a hemispherical dome portion 97 and a lighting protection cover portion 99.
  • the hemispherical dome portion 97 is formed in, for example, a hemispherical shape that covers the camera unit 55 (camera 15) with the lens optical axis Oc of the camera 15 in the radial direction.
  • the illumination protection cover portion 99 is formed in an annular shape having a convex curved surface that protrudes in the same direction as the hemispheric dome portion 97 by connecting an inner hole to the opening edge portion 101 of the hemispheric dome portion 97, for example.
  • the dome cover 17 uses a resin material excellent in moldability and transparency as a substrate material.
  • the resin material includes an organic resin material and an inorganic resin material.
  • an organic resin material such as polycarbonate is used as a substrate material for the hemispherical dome portion 97 and the illumination protection cover portion 99.
  • Polycarbonate is suitable because it is hard and resistant to impact.
  • a resin having good transparency such as acrylic can be used.
  • the same material can be used for the cylindrical light shielding member 19. However, in the case of the cylindrical light shielding member 19, light shielding properties are imparted by a process such as kneading or applying a light shielding agent.
  • the cylindrical light shielding member 19 stands up from the connection portion 103 between the opening edge portion 101 and the illumination protection cover portion 99 so as to face the illumination protection cover portion 99 by such a configuration of the dome cover 17.
  • the standing cylindrical light shielding member 19 surrounds the camera housing space 105 inside the hemispherical dome portion 97.
  • the dome cover 17 is preferably formed with at least a hemispherical dome portion 97 and a lighting protection cover portion 99 as separate bodies.
  • the separate hemispherical dome part 97 and the illumination protection cover part 99 can be joined at the connection part 103.
  • As a joining method of the connection part 103 heating, welding by a solvent, or adhesion
  • the hemispherical dome part 97 and the illumination protection cover part 99 are formed separately, so that the dome cover 17 is compared with a dome cover member in which the hemispherical dome part 97 and the illumination protection cover part 99 are integrally formed.
  • the light incident on the camera housing space 105 from the annular illumination chamber 77 can be reduced using the above member as a waveguide. That is, the connection portion 103 can be used as a barrier for light propagating through the waveguide.
  • FIG. 6 is an enlarged view of a main part in the vicinity of the concave circumferential groove shown in FIG.
  • the monitoring camera 11 has an annular plate-shaped light shielding member 107.
  • the annular plate-shaped light shielding member 107 has a light shielding property that blocks transmission of infrared light or visible light by the material itself or surface treatment.
  • the annular plate-shaped light shielding member 107 has an outer peripheral end portion 109 connected to the illumination protection cover portion 99, and an inner peripheral edge portion 111 is covered with a gap d on the standing tip 75 of the cylindrical light shielding member 19 (disposed oppositely).
  • the illumination support member 21 has a distal end disposed in the annular illumination chamber 77 through the bent portion 73 through the gap d.
  • the illumination room side light shielding peripheral wall 113 protruding along the standing tip 75 at a distance H1 longer than the gap d is provided on the inner peripheral edge portion 111 of the annular plate light shielding member 107. Further, on the inner peripheral edge 111 of the annular plate-shaped light shielding member 107, a camera housing space side light shielding peripheral wall 115 is disposed at a distance H2 longer than the gap d on the opposite side of the illumination room side light shielding peripheral wall 113 with the upstanding tip 75 interposed therebetween. It protrudes along the standing tip 75.
  • a concave circumferential groove 117 formed by the illumination room side light shielding peripheral wall 113 and the camera housing space side light shielding peripheral wall 115 is formed in the inner peripheral edge portion 111 of the annular plate light shielding member 107 with a constant radius around the pan rotation center Pc. Is done.
  • the illumination support member 21 has a shape in which a long rectangular plate is bent at a right angle a plurality of times (eight times in the illustrated example) and passes through the concave circumferential groove 117.
  • a bowl-shaped light-shielding peripheral wall 119 that protrudes outward in the radial direction of the cylindrical light-shielding member 19 is provided.
  • the hook-shaped light shielding peripheral wall 119 it is possible to suppress the light reflected by the illumination protection cover portion 99 from directly entering between the illumination room side light shielding peripheral wall 113 and the standing tip 75.
  • the light shielding material 121 may be attached to the inner wall surface of the concave circumferential groove 117 and the standing tip 75.
  • the annular plate-shaped light shielding member 107 in which the concave circumferential groove 117 is formed and the cylindrical light shielding member 19 having the standing tip 75 have a light shielding property of blocking transmission of infrared light or visible light by the material itself or surface treatment.
  • a light shielding material 121 may be attached. Examples of the light shielding material 121 include a black matting material and a black brushed covering material.
  • the surveillance camera 11 can more effectively suppress light leakage into the camera housing space 105 by providing the light shielding material 121.
  • FIG. 7 is a block diagram illustrating a configuration example of the control system of the monitoring camera 11.
  • the surveillance camera 11 has a controller 123.
  • the controller 123 includes, for example, a camera controller 125 and a tilt controller 127.
  • the controller 123 includes, for example, a CPU (Central Processing Unit) and a DSP (Digital Signal Processor).
  • the controller 123 includes various processors, for example, and implements the functions of the camera controller 125 and the tilt controller 127 by executing a program held in a memory (not shown). Each controller may include a CPU and execute a program.
  • the camera controller 125 is connected to a monitoring system including a host computer (not shown), a monitor 129, and an input device 131, for example.
  • the camera controller 125 controls processing of a captured image and transmission of an imaging signal to the outside.
  • the camera controller 125 receives a control signal from a host computer or the like of the monitoring system, and sends a drive control signal to each drive unit in the monitoring camera 11.
  • the input device 131 includes a control stick, operation buttons, a keyboard, a mouse, a touch panel, and the like.
  • the tilt controller 127 When the tilt controller 127 receives a tilt drive control signal from the camera controller 125, the tilt controller 127 sends a tilt drive signal to the tilt motor 63 and the illumination motor 89. In this case, the tilt controller 127 outputs to the tilt motor 63 and the illumination motor 89 a tilt drive signal that makes the tilt rotation angles of the camera unit 55 and the illumination unit 79 equal. That is, in the monitoring camera 11, the illumination device 23 is tilted and rotated in synchronization with the tilting and rotating drive of the camera 15.
  • controller is not limited to the control system shown in FIG. 7 and may include a controller (not shown) (for example, a pan controller or a dimming controller for dimming the lighting device 23).
  • a controller for example, a pan controller or a dimming controller for dimming the lighting device 23.
  • the pan rotating member 13 fixed to the camera 15 is pan-driven by the pan motor 41.
  • the camera 15 is covered with a dome cover 17.
  • a cylindrical light shielding member 19 is provided inside the dome cover 17.
  • the cylindrical light shielding member 19 stands up from the inner surface of the dome cover 17 and surrounds the camera 15.
  • the cylindrical light shielding member 19 partitions the annular illumination chamber 77 between the dome cover 17.
  • the base end of the illumination support member 21 is fixed to the pan rotation member 13.
  • the tip of the illumination support member 21 is disposed in the annular illumination chamber 77.
  • the bent portion 73 approaches the standing tip 75 of the cylindrical light shielding member 19 in a non-contact manner.
  • An illumination device 23 is fixed to the tip of the illumination support member 21. Therefore, when the pan rotating member 13 is driven to rotate, the illumination device 23 circulates around the annular illumination chamber 77 around the pan rotation center Pc by the illumination support member 21 fixed to the pan rotating member 13.
  • the light emitted from the illumination device 23 passes through the dome cover 17 outside the cylindrical light shielding member 19 and is irradiated to the outside. A part of the light emitted from the illumination device 23 is reflected by the inner surface of the dome cover 17 or the outer surface of the dome cover 17 and returns to the annular illumination chamber 77. The reflected light that has returned to the annular illumination chamber 77 is blocked by the cylindrical light shielding member 19, and is prevented from entering the inner side of the cylindrical light shielding member 19 (that is, the camera housing space 105) as direct light.
  • the surveillance camera 11 can suppress the light reflected by the dome cover 17 and returning into the dome cover 17 from being incident on the lens 59 of the camera 15.
  • the dome cover 17 includes a hemispherical dome portion 97 inside the cylindrical light shielding member 19 and an illumination protection cover portion 99 outside the cylindrical light shielding member 19.
  • the hemispherical dome part 97 and the illumination protection cover part 99 may be formed separately and joined at the connection part 103.
  • the outer periphery of the annular plate-shaped light shielding member 107 is connected to the illumination protection cover portion 99, and the inner peripheral edge 111 of the annular plate-shaped light shielding member 107 has a gap d at the standing tip 75 of the cylindrical light shielding member 19. Be placed. Therefore, the open portion of the annular illumination chamber 77 of the monitoring camera 11 is almost blocked by the annular plate-shaped light shielding member 107.
  • the light reflected and returned to the illumination protection cover 99 is blocked by the annular plate-shaped light blocking member 107.
  • the reflected light from the illumination protection cover 99 can be further suppressed from leaking to the camera housing space 105 due to reflection from the open portion of the annular illumination chamber 77 to the pan axis fixing plate 31 and the pan rotating member 13. .
  • the illumination support member 21 for supporting the illumination device 23 is passed through the standing tip 75 of the cylindrical light shield member 19 and the inner peripheral edge 111 of the annular plate light shield member 107.
  • the illumination support member 21 passes the bent portion 73 through the gap d between the annular plate-shaped light shielding member 107 and the standing tip 75.
  • the inner peripheral edge 111 of the annular plate-shaped light shielding member 107 is provided with a lighting room side light shielding peripheral wall 113 protruding along the standing tip 75.
  • the illumination room side light shielding peripheral wall 113 protrudes along the standing tip 75 at a distance H1 longer than the gap d.
  • the gap d formed for passing the illumination support member 21 and the illumination room side light shielding peripheral wall 113 constitute a so-called “optical labyrinth structure” that directly blocks the progress of light.
  • This optical labyrinth structure makes it possible to ensure a gap d through which the illumination support member 21 passes without contact while blocking the passage of direct light.
  • the inner peripheral edge 111 of the annular plate-shaped light shielding member 107 is provided with an illumination room side light shielding peripheral wall 113 and a camera housing space side light shielding peripheral wall 115 with the standing tip 75 interposed therebetween. Accordingly, the standing tip 75 is inserted into a concave circumferential groove 117 formed by the illumination room side light shielding peripheral wall 113 and the camera housing space side light shielding peripheral wall 115.
  • the light entering the camera housing space 105 from the annular illumination chamber 77 is further attenuated and leakage can be further suppressed.
  • the light that reflects the illumination room side light shielding peripheral wall 113, the annular plate shaped light shielding member 107, the standing tip 75, etc. a plurality of times is absorbed and attenuated by the light shielding material 121.
  • the monitoring camera 11 supports one illumination device 23 by one illumination support member 21. Thereby, the surveillance camera 11 can simplify the illumination light irradiation structure.
  • the illumination device 23 of the monitoring camera 11 is supported by the illumination support member 21 on the pan rotation member 13, the illumination device 23 is pan-rotated in synchronization with the camera 15.
  • the illumination device 23 may be tilt-rotated and driven in synchronization with the camera 15 under the control of the tilt controller 127.
  • FIG. 8 is a longitudinal sectional view of the monitoring camera 133 according to the second embodiment as viewed from the front.
  • FIG. 9 is a side sectional view of the monitoring camera 133 shown in FIG.
  • FIG. 10 is a perspective view of main parts of the camera unit 55 and the illumination device 23 shown in FIG.
  • FIG. 11 is a perspective view of essential parts when FIG. 10 is viewed from the left side.
  • the same members / parts as those shown in FIGS. 1 to 7 are denoted by the same reference numerals, and redundant description is omitted or simplified.
  • the camera 15 is provided on the pan rotation member 13 so as to be capable of tilt rotation drive about a tilt rotation center Tc orthogonal to the pan rotation center Pc.
  • a pair of illumination devices 23 are disposed on both sides in the direction along the tilt rotation center Tc with the camera 15 interposed therebetween.
  • the base ends of the pair of illumination support members 21 are fixed to both sides of the pan rotation member 13 provided with the pair of camera support side plates 51.
  • the pair of illumination support members 21 extends in a direction along the tilt rotation center Tc.
  • An illumination device 23 similar to the above is provided at the tip of each illumination support member 21.
  • the optical axis Sc of the illumination lens 83 is oriented in the same direction as the lens optical axis Oc.
  • each of the pair of lighting devices 23 may be tilt-rotated and driven by the illumination motor 89, the drive pulley 91, the driven pulley 93, and the belt 95 in synchronization with the tilt-rotation drive of the camera 15. .
  • Other configurations are the same as those of the monitoring camera 11 described above.
  • FIG. 12 is an operation explanatory diagram of the illumination device 23 according to the second embodiment.
  • the surveillance camera 133 includes a pair of lighting devices 23. Therefore, the monitoring camera 133 can increase the amount of illumination light and can illuminate a distant subject brighter.
  • the monitoring camera 133 includes a pair of lighting devices 23 with the camera 15 in between. Accordingly, as shown in FIG. 12, the monitoring camera 133 can dispose the lens 59 of the camera 15 and the pair of lighting devices 23 far apart.
  • the surveillance camera 133 can attenuate part of the illumination light that repeatedly reflects between the illumination protection cover 99 and the cylindrical light shielding member 19 up to the lens 59.
  • the reflected light from the illumination device 23 is repeatedly reflected by a semicircular distance between the illumination protection cover 99 and the cylindrical light shielding member 19 in order to enter the lens 59 of the camera 15.
  • Light that is about to enter the lens 59 is attenuated by this repeated reflection. Therefore, according to the monitoring camera 133, the light shielding effect can be improved, for example, with respect to the reflected light generated when the outer surface of the illumination protection cover 99 is dirty.
  • the illumination device 23 can be built in the dome cover 17 in which the camera 15 is driven to rotate electrically.
  • the first and second embodiments have been described as examples of the technology in the present disclosure.
  • the technology in the present disclosure is not limited to this, and can also be applied to embodiments in which changes, replacements, additions, omissions, and the like are performed. Further, the first and second embodiments may be combined.
  • FIG. 13 is an enlarged side cross-sectional view of the part ⁇ shown in FIG.
  • a light shielding peripheral wall 108 is formed on the inner peripheral side of the annular light shielding member 107 so as to face the standing tip 75 of the cylindrical light shielding member 19, and covers the light shielding peripheral wall 108.
  • the standing tip 75 may be formed in a concave shape.
  • the configuration of FIG. 13 can provide the same effects as the configuration of FIG.
  • the light shielding material 121 may be attached to the opposing side where the light shielding peripheral wall 108 and the standing tip 75 are opposed to each other, that is, the inner wall surface of the concave circumferential groove 117.
  • FIG. 13 may be applied to the monitoring camera 133 in the second embodiment. That is, the vicinity of the concave circumferential groove shown in FIG. 8 may be replaced with the same configuration as in FIG.
  • the controller (for example, the controller 123, the camera controller 125, or the tilt controller 127) may be physically configured in any manner. Further, if a programmable controller is used, the processing contents can be changed by changing the program, so that the degree of freedom in designing the controller can be increased.
  • the controller may be composed of one semiconductor chip or physically composed of a plurality of semiconductor chips. In the case of a plurality of semiconductor chips, each control of the first and second embodiments may be realized by different semiconductor chips. In this case, it can be considered that a plurality of semiconductor chips constitute one controller. Further, the controller may be configured by a member (capacitor or the like) having a function different from that of the semiconductor chip. Further, one semiconductor chip may be configured so as to realize the functions of the controller and other functions. In addition, a plurality of controllers may be configured by one controller.
  • the present disclosure is useful for an imaging device or the like in which an illumination device can be built in a dome cover that is electrically driven and rotated inside by a camera.

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  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
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  • Signal Processing (AREA)
  • Studio Devices (AREA)
  • Stroboscope Apparatuses (AREA)
  • Accessories Of Cameras (AREA)
PCT/JP2016/004698 2015-11-24 2016-10-26 撮像装置 WO2017090230A1 (ja)

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JP2015228978A JP6654756B2 (ja) 2015-11-24 2015-11-24 撮像装置

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022124392A1 (ja) * 2020-12-11 2022-06-16 株式会社A.L.I. Technologies 飛行体及び飛行体の制御方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7016644B2 (ja) * 2017-08-25 2022-02-07 キヤノン株式会社 撮像装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001145004A (ja) * 1999-11-16 2001-05-25 Atsumi Electric Co Ltd 監視カメラ
JP2004159253A (ja) * 2002-11-08 2004-06-03 Takenaka Engineering Co Ltd 監視カメラ
US20090059003A1 (en) * 2007-08-29 2009-03-05 Samsung Electronics Co., Ltd. Monitoring camera

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001145004A (ja) * 1999-11-16 2001-05-25 Atsumi Electric Co Ltd 監視カメラ
JP2004159253A (ja) * 2002-11-08 2004-06-03 Takenaka Engineering Co Ltd 監視カメラ
US20090059003A1 (en) * 2007-08-29 2009-03-05 Samsung Electronics Co., Ltd. Monitoring camera

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022124392A1 (ja) * 2020-12-11 2022-06-16 株式会社A.L.I. Technologies 飛行体及び飛行体の制御方法

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