WO2018135181A1 - Dispositif de caméra, et procédé de mesure de température de dispositif de caméra - Google Patents

Dispositif de caméra, et procédé de mesure de température de dispositif de caméra Download PDF

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Publication number
WO2018135181A1
WO2018135181A1 PCT/JP2017/044381 JP2017044381W WO2018135181A1 WO 2018135181 A1 WO2018135181 A1 WO 2018135181A1 JP 2017044381 W JP2017044381 W JP 2017044381W WO 2018135181 A1 WO2018135181 A1 WO 2018135181A1
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WO
WIPO (PCT)
Prior art keywords
camera
housing
infrared
camera unit
camera device
Prior art date
Application number
PCT/JP2017/044381
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English (en)
Japanese (ja)
Inventor
圭介 立林
稔 桑名
久一郎 今出
Original Assignee
コニカミノルタ株式会社
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 コニカミノルタ株式会社 filed Critical コニカミノルタ株式会社
Priority to JP2018563210A priority Critical patent/JP6773134B2/ja
Publication of WO2018135181A1 publication Critical patent/WO2018135181A1/fr

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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
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/02—Bodies
    • 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
    • G03B17/02—Bodies
    • G03B17/08—Waterproof bodies or housings
    • 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

Definitions

  • the present invention relates to a camera device and a temperature measurement method for the camera device.
  • the temperature in the housing is measured by the temperature detection unit so that clear and stable shooting can be performed, and the temperature is measured according to the measured temperature. Therefore, it is required to correct the output value of the infrared sensor. Regarding this matter, there is room for improvement in the conventional camera device.
  • An object of the present invention is to provide a camera device and a temperature measurement method for the camera device that can stably perform temperature measurement in the housing by the temperature measurement unit, and thus correction of the output value of the infrared sensor.
  • the camera device includes: A housing having a housing and a lid; A camera unit mounted with an infrared camera and housed in the housing;
  • the infrared camera has an infrared lens, a lens barrel that holds the infrared lens, and an infrared sensor that detects infrared rays received through the infrared lens,
  • the housing includes a temperature detection unit that detects a temperature inside the housing at a position in contact with the lens barrel when the camera unit is housed.
  • the temperature measuring method of the camera device is: In a camera device in which a camera unit equipped with an infrared camera having a lens barrel for holding an infrared lens is detachable from a housing having a housing and a lid, An internal temperature of the housing is measured by a temperature detector provided in the housing and in contact with the lens barrel.
  • the present invention it is possible to stably perform the temperature measurement in the casing by the temperature measuring unit, and hence the correction of the output value of the infrared sensor.
  • FIGS. 5A and 5B are diagrams illustrating the relationship between the housing and the camera unit, in which FIG. 5A shows a plan view of the housing with the lid removed, and FIG. 5B shows a plan view of the camera unit. It is a notch sectional view which shows the structure of the thermocouple and leaf
  • FIG. 1 is an external perspective view of the camera apparatus 1 according to the present embodiment.
  • FIG. 2 is a cross-sectional view of the housing 2 in the camera device 1
  • FIG. 3 is an external perspective view of the camera unit 5 housed in the housing 2.
  • the camera apparatus 1 includes a housing 2 in which a camera unit 5 described later with reference to FIG.
  • the housing 2 includes a housing 3 that houses the camera unit 5 and a lid 4 that is attached to the housing 3.
  • the housing 3 and the lid 4 are made of a material having high rigidity such as metal in order to have an explosion-proof specification.
  • the housing 3 has a box shape having a size and a volume capable of accommodating the camera unit 5, and as shown in FIG. 1, circular windows 31 and 32 made of a translucent member are provided on one side surface. ing.
  • the window 31 is an infrared window provided at a position corresponding to an infrared lens 61 of an infrared camera 60 described later of the camera unit 5, and the window 32 is a lens of a visible light camera 70 described later of the camera unit 5. It is the visible window provided in the position corresponding to.
  • FIG. 2 is a cross-sectional view of the housing 2 before the camera unit 5 is housed.
  • the infrared window 31 is provided to be inclined so as to face the lower side than the horizontal.
  • one side surface of the housing 3 in which the windows 31 and 32 are provided is inclined in a direction in which a lower portion where the infrared window 31 is disposed becomes wider from the bottom surface of the housing 3, and the inclined portion.
  • the window frame of the outer surface side of the infrared window 31 is attached to.
  • the upper part of the housing 3 in which the visible window 32 is provided extends in a substantially vertical direction, and the visible window 32 and its window frame are not inclined.
  • a cable for supplying power to the camera unit 5 and a cable for transmitting and receiving signals between the camera unit 5 and external devices are provided on the other side surface of the housing 3.
  • a plurality (four in this example) of holes 33A to 33D for insertion are provided.
  • the floor surface 30 of the housing 3 is provided with a substrate 80 for mounting other components described later.
  • the lid 4 is a substantially rectangular member in plan view. As shown in FIG. 2, the periphery of the lower surface of the lid 4 is joined to the upper periphery of the housing 3 in a flange shape, so that the interior of the housing 2 is Sealed. In addition, a grip portion 41 that is gripped by the user when the lid 4 is opened and closed is provided at substantially the center of the upper surface of the lid 4.
  • FIG. 1 shows a state in which the lid 4 is attached to the housing 3 using a plurality (12 in this example) of hexagon socket head bolts (hereinafter simply referred to as bolts) B and the inside is sealed.
  • bolts hexagon socket head bolts
  • each bolt B has a retaining portion for the lid 4 so that it does not fall off from the lid 4.
  • FIG. 3 shows the configuration of the camera unit 5
  • FIG. 4 shows a state where the camera cover 51 is removed from the camera unit 5.
  • 5A and 5B are views of the housing 3 and the camera unit 5 as viewed from above.
  • the camera unit 5 includes an infrared lens 61, an infrared sensor 62, and the like on a flat camera base 50 that is a base member and serves as a base.
  • a camera 60, a visible light camera 70 such as a CCD camera, and various components described below are mounted.
  • Such a camera unit 5 can be installed and used at a high place, for example, as a gas detection device by being housed in the case 2 having high dustproof, waterproof and explosion-proof properties as described above. .
  • the adjustment of the optical system such as the focus and parallax in the infrared camera 60 and the visible light camera 70 is adjusted locally from the viewpoint of safety. It is preferable that the adjustment is sufficiently made in advance at the time of manufacture or shipment.
  • the weight of the product particularly the weight of the housing 2 becomes heavy, and if it is attempted to collect the entire device during maintenance, it is necessary to perform it by crane work, etc. Since it is large and expensive, it is better to have a structure in which only the camera unit 5 is attached and detached.
  • components such as the infrared camera 60 and the visible light camera 70 that require adjustment work in advance are mounted on the camera unit 5 side, and the camera unit 5 can be attached to and detached from the housing 3.
  • the adjusted cameras 60, 70, etc. can be exchanged at once on site.
  • the configuration of the camera unit 5 will be described, assuming that the side on which the infrared lens 61 and the visible light camera 70 are disposed in the housing 3 and the camera unit 5 is the “front side”.
  • prismatic columnar portions 52 are respectively provided upright from the left and right corners, and a hood 53 having a substantially “inverted U” shape in a front view is fixed to the columnar portions 52.
  • the hood 53 covers the infrared lens 61 and the lens barrel 63 to which the lens 61 is attached.
  • the lens barrel 63 of the infrared camera 60 adjusts the position in the vertical and horizontal directions with respect to the lens barrel fixing portion 54 (see FIG. 9) erected on the camera base 50, and a plurality of screws are attached to the lens barrel fixing portion 54. By fixing, it fixes to the front side of the camera base 50 so that it may be arrange
  • a sensor fixing base 64 is attached with screws or the like on the camera base 50 on the rear side of the support column 52, and the infrared sensor 62 is fixed to the sensor fixing base 64 so that the infrared sensor 62 is connected to the camera base 50.
  • 50 is provided at approximately the center.
  • the infrared camera 60 performs imaging by detecting the infrared ray of the subject received through the infrared lens 61 with an infrared sensor 62 and converting it into an electrical signal. Therefore, the infrared camera 60 needs to align the infrared lens 61 and the infrared sensor 62 in the lens barrel 63 with high accuracy on the camera base 50 in order to ensure imaging performance.
  • the infrared camera 60 has a far greater change in focal length due to temperature changes than the visible light camera 70 due to the characteristics of the infrared lens 61, and slight changes in temperature have a large effect on imaging quality.
  • the camera device 1 includes a temperature detection unit for detecting the temperature in the housing 2 and measuring (estimating) the temperature of the infrared lens 61 of the infrared camera 60. Regarding the configuration of the temperature detection unit Will be described later.
  • a visible light camera 70 Above the infrared camera 60 on the camera base 50, a visible light camera 70, a terminal block 85 to which a power supply terminal for supplying power to each part of the camera unit 5 is connected, power supply to the infrared sensor 62 and signal output A relay board 90 that performs the above and the like is provided.
  • the rear end side of the plate-shaped intermediate base member 55 disposed on the hood 53 is fixed to the support column 52 with screws, and the front surface of the intermediate base member 55 is placed on the front surface.
  • a frame 56 having a substantially U shape in view is fixed with screws.
  • the terminal block 85 is fixed to the upper part of the frame 56 with screws.
  • the visible light camera 70 is vertically aligned with a camera fixing portion 57 (see FIG. 9) disposed below the terminal block 85 and in a space surrounded by the frame 56, and a screw or the like is attached to the fixing portion 57. It is attached with.
  • the visible light camera 70 is fixed to the front side of the camera base 50 above the infrared camera 60 so that the lens of the camera faces the visible window 32 described above.
  • the relay substrate 90 is fixed on the approximate center of the camera base 50 above the infrared sensor 62 by being mounted on the pedestal portion 65 connected to the sensor fixing base 64.
  • the camera cover 51 is a substantially inverted U-shaped cover member for covering the infrared camera 60 and the relay substrate 90. As shown in FIG. 3, the camera cover 51 is fixed to the side surface of the camera base 50 with screws or the like. The infrared sensor 62 mounted on the base 50 is covered. On the upper surface of the camera cover 51, handles 511 and 512 for a user to hold are erected and openings 51a to 51d described later are provided.
  • the camera unit 5 performs various signal processing, such as a heater (heat source) for adjusting the temperature in the housing 2 and a fan (blower) as a cooling unit for cooling the infrared sensor 62.
  • a control unit (CPU) that controls the entire camera unit 5 is mounted, but these are not shown in order to make it easy to see the main parts in the present embodiment.
  • the infrared camera 60 having such a cooling type infrared sensor 62 is excellent in detection accuracy, but has a short durability, such as a blower, and is exchanged in a relatively short period (for example, every year) in the product cycle. There is a need to. On the other hand, some of the components of the camera device 1 are long-lasting components, and such components do not need to be replaced when the infrared camera 60 or the like is replaced. good.
  • the camera device 1 of the present embodiment is configured such that a part having a long durability in the product cycle is not mounted on the camera unit 5 side but mounted on the housing 3 side of the housing 2.
  • the above-described substrate 80 is fixed to the floor surface 30 of the housing 3 with screws or the like, and a plate which is an elastic member (elastic body) as shown in FIG.
  • a spring 101 is installed, and a thermocouple 102 as a temperature detection unit is fixed on the plate spring 101.
  • the leaf spring 101 has a substantially L-shaped outer shape in a side view and is provided so that one end thereof is fixed to the substrate 80 with a screw or the like so that the other end can be elastically deformed in the vertical direction with respect to the substrate 80. It has been.
  • the load of the leaf spring 101 is set to be lighter than the weight of the camera unit 5.
  • the thermocouple 102 is fixed substantially at the center of the upper surface of the leaf spring 101, and is arranged along the longitudinal direction of the leaf spring 101 in this example.
  • the thermocouple 102 is for measuring the temperature of the infrared lens 61 of the infrared camera 60, and is composed of two types of metal wires.
  • the temperature detection unit for measuring the temperature of the infrared lens 61 is supposed to be disposed on the camera unit 5 side
  • the thermocouple 102 is a component that does not require a main tense and has a long durability. For this reason, in this Embodiment, it is set as the structure provided with the cable 102c connected (connected) to the thermocouple 102 and the thermocouple 102 in the housing 3 side. With this configuration, when the camera unit 5 is replaced, the connection work between the thermocouple 102 and the AD converter 103 described later can be omitted, and the work can be facilitated.
  • the cable 102c of the thermocouple 102 is arranged avoiding (bypassing) the space S indicated by the dotted line in FIG. 5A in which the camera unit 5 in the housing 3 is accommodated. That is, the cable 102c extends to one corner (left side in FIG. 5A) at the front of the housing 3 as shown in FIG. 6, FIG. 2, FIG. And connected to the AD converter 103.
  • the AD converter 103 includes a circuit for converting the detected value of the temperature by the thermocouple 102 from analog to digital. As shown in FIGS. 2 and 5A, the case in which such a circuit is built is located on the rear side of the substrate 80 of the housing 3. Are fixed with screws or the like at one corner (left side in FIG. 5A). Since the AD converter 103 is a component that does not require a main tense and has a long durability, the AD converter 103 is mounted on the housing 3 side.
  • the camera unit 5 can be replaced by mounting a component such as the thermocouple 102 having a long durability in the product cycle on the housing 2 side instead of mounting on the camera unit 5 side.
  • the wiring work at the time can be simplified.
  • an infrared camera 60, a visible light camera 70, or the like that requires high-precision adjustment of the optical axis, optical parts, or the like, or a part that has a short durability in the product cycle is used as the camera unit 5.
  • the entire camera unit 5 is mounted on the housing 3. With this configuration, with respect to the components mounted on the camera unit 5, the optical axis, optical components, and the like are adjusted in advance at a factory or the like, and the camera unit 5 is periodically exchanged at the site, so that the camera unit 5 can be easily performed and maintenance management of the entire apparatus can be performed.
  • the camera unit 5 is displaced in any direction of the three-dimensional space (three axes) with respect to the housing 2. It is necessary to be accommodated in the housing 2 so as not to occur.
  • the camera device 1 is provided with a mechanism that enables highly accurate alignment of the camera unit 5 with respect to the housing 2 and prevents positional displacement, as will be described below.
  • each positioning pin 801, 802 has a circular cross-sectional shape with a large diameter on the bottom side, and a substantially conical outer shape having a tapered shape with a diameter decreasing from the proximal end side toward the distal end side. .
  • the camera base 50 of the camera unit 5 is provided with positioning holes 501 and 502 as shown in FIGS.
  • Each positioning hole 501 and 502 is disposed at a corresponding distance at a position corresponding to each positioning pin 801 and 802 described above.
  • the number of these positioning pins and positioning holes can be any number, but considering the workability at the time of positioning described later, the visibility of the positioning holes, etc., a configuration in which a pair is provided as in this embodiment Is preferred.
  • one positioning hole 501 is a round hole having a diameter substantially equal to the outer diameter of the bottom of the positioning pin 801.
  • the other positioning hole 502 is a long hole extending in the direction of the positioning hole 501, and the diameter in the short direction (vertical direction in FIG. 5B) of the long hole is substantially equal to the outer diameter of the bottom of the positioning pin 802.
  • the diameter of the long hole in the longitudinal direction is larger than the outer diameter of the bottom of the positioning pin 802.
  • the distance between the centers of the positioning pins 801 and 802 is substantially equal to the distance between the centers of the positioning holes 501 and 502.
  • the positioning holes 501 and 502 when the positioning holes 501 and 502 are inserted into the positioning pins 801 and 802 provided on the housing 3 side, the distance tolerance between the positioning pins 801 and 802 is determined. Is absorbed, and insertion is easier than in the case where each positioning hole is a round hole. Further, since the positioning holes 501 and 502 are inserted to the lower side of the positioning pins 801 and 802, the planar position and rotation of the camera base 50 on the floor surface 30 of the housing 3 are restricted. A two-dimensional (two-axis) position of the camera unit 5 is uniquely determined.
  • each positioning pin 801, 802 extends to a height position near the top of the window frame 31 on the infrared lens 61 side (see FIG. 2).
  • the lower side of the window frame 31 is inclined so that the infrared lens 61 and the lens barrel 63 easily interfere with the inclined portion.
  • the positioning pins 801 and 802 are configured to extend long upward.
  • the positioning is roughly performed at the beginning, and the positioning is accurately performed at the end when the camera unit 5 is attached to the housing 3 by adopting a taper shape in which the diameter becomes narrower toward the tip side of each positioning pin 801, 802. It becomes possible. Therefore, according to the present embodiment, alignment and positioning of the camera unit 5 with respect to the housing 3 can be performed easily and with high accuracy.
  • the positioning pins 801 and 802 are attached to the substrate 80 on the floor 30 of the housing 3.
  • the positioning pins 801 and 802 may be provided so as to be erected from the floor surface 30 of the housing 3 and to be inserted into the substrate 80.
  • openings 51c and 51d are provided on the upper surface of the camera cover 51, and the positioning holes 501 and 502 can be viewed from above through the openings 51c and 51d. It is like that.
  • the opening 51c is a circular opening corresponding to the shape of the positioning hole 501
  • the opening 51d is a polygonal opening having a size that allows the positioning hole 502 and the relay substrate 90 to be visually recognized.
  • the opening 51d has a shape in which a part on one side (the right side in FIG. 5B) corresponding to the positioning hole 502 is greatly cut away so that the positioning hole 502 can be easily seen from above.
  • the positioning holes 501 and 502 are configured to be visible from above the camera unit 5, so that the positioning operation of the camera unit 5 with respect to the housing 3 can be easily performed. become.
  • substantially cylindrical columns 521 and 522 are provided on the rear side of the positioning holes 501 and 502 in the camera base 50.
  • the support column 521 is inserted into the opening 51 a provided on the rear side of the support column 521 on the upper surface of the camera cover 51
  • the support column 522 is inserted into the opening 51 b provided in the vicinity of the opening 51 c of the camera cover 51.
  • each side surface is supported by the camera cover 51. That is, the opening 51c and the opening 51d of the camera cover 51 function as a support portion or a support hole that supports the side surfaces of the support column 521 and the support column 522, respectively.
  • the support column 521 and the support column 522 have the same configuration and differ only in the position on the camera base 50. Therefore, only the configuration of the support column 522 will be mainly described below with reference to FIG. .
  • a plunger P as an urging portion for urging the camera unit 5 downward, and a nut 523 for fixing the position after adjusting the vertical position of the plunger P in the vertical direction.
  • the tip end of the plunger P is urged upward by a coil spring (not shown) as an elastic member provided inside the plunger P.
  • the position of the plunger P in the arrow Z that is, the vertical direction with respect to the column 522 can be varied. Specifically, when the plunger P is rotated clockwise, the plunger P moves downward, and when the plunger P is rotated counterclockwise, the plunger P moves upward.
  • such a mechanism for adjusting the vertical position of the plunger P is provided in each of the columns 521 and 522, so that even when the member on the housing 2 or the camera unit 5 side has variations in the height direction. Therefore, it is possible to adjust so as to correct the variation.
  • the support 521, 522 is erected from the camera base 50, and the plunger P is disposed at the tip of each support 521, 522, so that the lid is interposed via the hinge described above.
  • the operation of rotating 4 to open is not hindered.
  • the total load (biasing force) for the two plungers P is set to a value larger than the weight of the camera unit 5, and it is assumed that the camera unit 5 is housed in the housing 2. Even if the body 2 is turned upside down, the camera unit 5 is not displaced in the vertical direction.
  • the outer surface of the lens barrel 63 of the infrared camera 60 abuts (contacts) the thermocouple 102 and is urged upward by the leaf spring 101 provided with the thermocouple 102, thereby causing the thermocouple.
  • the contact state with 102 is maintained (see FIGS. 8 and 9).
  • the camera unit 5 since the load of the leaf spring 101 is lighter than the weight of the camera unit 5, the camera unit 5 has its own weight when the camera unit 5 is attached to the housing 3, and the camera unit 5 is lifted by the force of the leaf spring 101. There is nothing. Therefore, according to the present embodiment, the camera unit 5 can be fixed to the housing 3 before the lid 4 is closed.
  • the measured value from the thermocouple 102 is supplied to the control unit through the AD converter 103, thereby measuring (estimating) the temperature of the infrared lens 61, and the output value of the infrared sensor 62 based on the estimated temperature. Correction can be performed. Moreover, since the internal temperature of the housing
  • the lid 4 is closed with respect to the housing 3 and the bolt B is fastened as shown in FIGS.
  • the plunger P is pressed against the inner surface of the lid 4 and moves downward, the spring for biasing the plunger P is compressed, and a force for pressing the camera unit 5 against the housing 3 is generated.
  • the camera base 50 and thus the entire camera unit 5 are urged downward. With this action, the position of the camera unit 5 in the vertical direction with respect to the housing 2 is fixed, and vertical movement and displacement are prevented. Therefore, according to the present embodiment, when the camera unit 5 is attached to the housing 3, it can be firmly fixed to the housing 3 without using a fastener such as a screw.
  • the reverse procedure is performed, that is, the bolts B are loosened, the lid 4 is opened with respect to the housing 3, and the cable is removed appropriately. Holding the five handles 511 and 512, it may be lifted upward as it is.
  • thermocouple 102 is provided on the bottom of the housing 3 via the leaf spring 101, and the lens barrel 63 of the infrared camera 60 is in contact with the thermocouple 102. Further, the cable 102c of the thermocouple 102 is wired so as to avoid (detour) the space S for housing the camera unit 5 (see FIG. 5A and the like). Therefore, when the camera unit 5 is attached / detached, the leaf spring 101, the thermocouple 102, and the cable 102c of the thermocouple 102 do not interfere with the camera unit 5, and the camera unit 5 can be attached / detached easily.
  • the camera device 1 is configured such that the camera unit 5 including the infrared camera 60, the visible light camera 70, the signal processing unit, and the like can be attached to and detached from the housing 3, and optical such as focus and parallax is provided.
  • the system can be adjusted in a factory or the like before the camera unit 5 is replaced.
  • the camera device 1 performs two-dimensional (front / rear / left / right) positioning and positioning with the positioning pins 801 and 802 of the housing 3 and the positioning holes 501 and 502 of the camera unit 5, and pressurizes the plunger P with the lid 4.
  • the vertical position of the camera unit 5 is regulated.
  • the camera unit 5 including the infrared camera 60 and the visible light camera 70 can be safely and easily attached and detached, and three-dimensional (three-axis) positioning is realized with high accuracy when the camera unit 5 is attached. This eliminates the need for optical adjustment during replacement work.
  • the camera device 1 according to the present embodiment is mounted on the housing 2 side without mounting a long-lasting part such as the thermocouple 102 in the product cycle on the camera unit 5 side.
  • the wiring work at the time of replacement of the unit 5 can be simplified. Therefore, according to the present embodiment, the replacement work of the camera unit 5 can be performed with a minimum of labor.
  • the configuration including the thermocouple 102 as the temperature detection unit that detects the temperature inside the housing 2 has been exemplified.
  • the temperature detection unit uses other various temperature sensors.
  • a non-contact temperature sensor may be used.
  • the temperature detection unit is arranged on the upper surface side of the leaf spring 101 in the above-described embodiment, but may be arranged on the lower surface side of the leaf spring 101.
  • another elastic body such as a coil spring may be used instead of the leaf spring 101.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Studio Devices (AREA)
  • Camera Bodies And Camera Details Or Accessories (AREA)
  • Cameras Adapted For Combination With Other Photographic Or Optical Apparatuses (AREA)
  • Accessories Of Cameras (AREA)
  • Lens Barrels (AREA)

Abstract

Dispositif de caméra et procédé de mesure de température de dispositif de caméra avec lesquels il est possible de mesurer de manière stable la température à l'intérieur d'un boîtier à l'aide d'une unité de mesure de température et de corriger de manière stable la valeur de sortie d'un capteur infrarouge. Le dispositif de caméra est équipé d'un boîtier ayant un logement et un couvercle, et également équipé d'une unité de caméra pourvue d'une caméra infrarouge et logée à l'intérieur du boîtier. La caméra infrarouge comporte une lentille infrarouge, un corps de lentille pour maintenir la lentille infrarouge, et un capteur infrarouge pour détecter des rayons infrarouges reçus par l'intermédiaire de la lentille infrarouge. Le logement est pourvu d'une unité de détection de température qui détecte la température à l'intérieur du boîtier et est positionnée de façon à entrer en contact avec le corps de lentille lorsque l'unité de caméra est logée dans le logement.
PCT/JP2017/044381 2017-01-18 2017-12-11 Dispositif de caméra, et procédé de mesure de température de dispositif de caméra WO2018135181A1 (fr)

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Application Number Priority Date Filing Date Title
JP2018563210A JP6773134B2 (ja) 2017-01-18 2017-12-11 カメラ装置およびカメラ装置の温度測定方法

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JP2017006616 2017-01-18
JP2017-006616 2017-01-18

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WO2018135181A1 true WO2018135181A1 (fr) 2018-07-26

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210104482A (ko) * 2020-02-17 2021-08-25 조은아 극저온용 카메라 어셈블리

Citations (4)

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JPH02272409A (ja) * 1989-04-13 1990-11-07 Mitsubishi Electric Corp 赤外線撮像装置の焦点調節方式
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