Finder and imaging device

Abstract

The present invention comprises: a display panel which can move in an optical axis direction relative to a heat dissipating part; and a heat transfer part having parts connected to the display panel and to the heat dissipating part. The heat transfer part deforms in accordance with the movement of the display panel with respect to the heat dissipating part. Due to the foregoing, since the heat transfer part connected to the display panel and to the heat dissipating part deforms in accordance with the movement of the display panel with respect to the heat dissipating part, heat that is generated in the display panel is conducted to the heat dissipating part regardless of the movement position of the display panel with respect to the heat dissipating part, making it possible to ensure favorable heat dissipation of heat that is generated in the display panel, regardless of the position of the display panel.

Description

Technical Field

[0001] This technology relates to the technical field of a viewfinder that displays an image of a subject during shooting and an imaging device equipped with the same.

Background Art

[0002] Some imaging devices such as video cameras and still cameras are provided with a viewfinder that displays an image of a subject during shooting. The viewfinder is used to determine the visual composition before shooting in the imaging device, or to check the image and focus before and after shooting, and is provided as a peephole or as a monitor (display).

[0003] Such a viewfinder is provided with a display panel for displaying an image of a subject, but heat is generated during driving in the display panel. Since the heat generated in the display panel may cause deterioration of the performance of the display panel and a decrease in image quality, it is necessary to release it to the outside from the viewpoint of temperature suppression.

[0004] Therefore, some imaging devices use a heat dissipation sheet as a heat transfer part, connect a part of the heat dissipation sheet to the display panel, connect another part of the heat dissipation sheet to a heat dissipation part such as a housing, and conduct the heat generated in the display panel to the heat dissipation part through the heat dissipation sheet and release it to the outside (see, for example, Patent Document 1).

[0005] By using a heat dissipation sheet as the heat transfer part in this way, it becomes possible to conduct heat to a heat dissipation part existing at a position separated from the display panel by the heat dissipation sheet, and efficiently conduct heat to a desired part separated from the display panel to ensure good heat dissipation performance regarding the heat generated in the display panel.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0007] By the way, in some of the above-mentioned finders, the display panel is movable in the optical axis direction with respect to other members, for example, an optical block.

[0008] In a finder in which such a display panel is movable with respect to other members, the distance between the display panel and the heat radiating portion changes according to the position of the display panel. Therefore, it is desirable to ensure good heat dissipation with respect to the heat generated in the display panel regardless of the position of the display panel.

[0009] Therefore, the object of the present technology finder and imaging device is to ensure good heat dissipation with respect to the heat generated in the display panel regardless of the position of the display panel.

Means for Solving the Problems

[0010] First, the finder according to the present technology includes a display panel that is relatively movable in the optical axis direction with respect to a heat radiating portion, and a heat transfer portion in which a part of each is connected to the display panel and the heat radiating portion. The heat transfer portion is deformed according to the movement of the display panel with respect to the heat radiating portion.

[0011] As a result, since the heat transfer portion connected to the display panel and the heat radiating portion is deformed according to the movement of the display panel with respect to the heat radiating portion, the heat generated in the display panel is conducted to the heat radiating portion regardless of the movement position of the display panel with respect to the heat radiating portion.

[0012] Second, in the finder according to the present technology described above, the heat transfer portion is provided with a first connection portion connected to the display panel and a second connection portion connected to the heat radiating portion, and the heat transfer portion is provided between the first connection portion and the second connection portion. It is desirable to provide a deforming portion that is deformed according to the movement of the display panel with respect to the heat radiating portion.

[0013] As a result, the deformation part is deformed between the first connection part and the second connection part in response to the movement of the display panel with respect to the heat dissipation part.

[0014] Thirdly, in the viewfinder according to the present technology described above, it is desirable that the deformation part expands and contracts in response to the movement of the display panel with respect to the heat dissipation part.

[0015] As a result, the deformation part expands and contracts in response to the movement of the display panel with respect to the heat dissipation part, enabling the deformation of the deformation part in a small space.

[0016] Fourthly, in the viewfinder according to the present technology described above, it is desirable that the deformation part is located in the space formed between the display panel and the heat dissipation part.

[0017] As a result, since the deformation part is deformed while being located in the space formed between the display panel and the heat dissipation part, the deformation part is not located outside the display panel in the direction orthogonal to the optical axis direction.

[0018] Fifthly, in the viewfinder according to the present technology described above, it is desirable that a plurality of the deformation parts are provided at intervals in the direction orthogonal to the optical axis direction.

[0019] As a result, there are a plurality of heat transfer paths from the display panel to the heat dissipation part.

[0020] Sixthly, in the viewfinder according to the present technology described above, a pair of the deformation parts are provided, and when an axis extending in the optical axis direction passing through the central point in the direction orthogonal to the optical axis direction of the heat transfer part is used as a reference axis, it is desirable that the pair of deformation parts are located substantially symmetrically with respect to the reference axis.

[0021] As a result, since the deformation parts located at substantially symmetric positions with respect to the display panel are deformed, it is difficult to apply a load in a direction biased from the deformation parts to the display panel.

[0022] Seventhly, in the viewfinder according to the present technology described above, it is desirable that three bending portions are formed in the deformed portion.

[0023] Thereby, the deformed portion is deformed with reference to the three bending portions.

[0024] Eighthly, in the viewfinder according to the present technology described above, it is desirable that the heat transfer portion is formed in a sheet shape.

[0025] Thereby, since the sheet-shaped heat transfer portion is deformed according to the movement of the heat radiation portion of the display panel, the heat transfer portion can be deformed in a small space and the heat transfer portion becomes lightweight.

[0026] Ninthly, in the viewfinder according to the present technology described above, it is desirable that the heat transfer portion has a plurality of heat transfer sheets arranged in the thickness direction.

[0027] Thereby, the heat transfer portion becomes easy to bend, and it is difficult for a load to be applied to the display panel from the heat transfer portion.

[0028] Tenthly, in the viewfinder according to the present technology described above, it is desirable that the plurality of heat transfer sheets are fixed in the thickness direction in a part of the heat transfer portion.

[0029] Thereby, the heat transfer sheets are not separated, and heat is transferred in the thickness direction between the plurality of heat transfer sheets.

[0030] Eleventhly, in the viewfinder according to the present technology described above, it is desirable that the heat transfer portion is formed in an annular shape.

[0031] Thereby, the heat generated in the display panel is conducted to the heat radiation portion by the annular heat transfer portion.

[0032] Twelfthly, in the viewfinder according to the present technology described above, it is desirable that a graphite sheet is used as the heat transfer portion.

[0033] As a result, the heat transfer part is formed of a material having high thermal conductivity and flexibility.

[0034] 13th, in the viewfinder according to the present technology described above, an optical block arranged in a state fixed to the outer casing and a movable block to which the display panel is attached are provided, and it is desirable that the movable block is moved in the optical axis direction with respect to the optical block so that the display panel is moved with respect to the heat radiation part.

[0035] As a result, it becomes possible to provide a structure for moving the optical block and the movable block in the optical axis direction.

[0036] 14th, in the viewfinder according to the present technology described above, a relay part attached to the optical block is provided, and it is desirable that a part of the heat transfer part is attached to the relay part.

[0037] As a result, the heat transfer part is connected to the heat radiation part in a state where the heat transfer part is attached to the relay part attached to the optical block arranged in a fixed state.

[0038] 15th, in the viewfinder according to the present technology described above, it is desirable that the heat transfer part is attached to the relay part via a cushion.

[0039] As a result, the heat transfer part is pressed against the heat radiation part by the elasticity of the cushion.

[0040] 16th, the imaging device according to the present technology includes an imaging element that converts an optical image of a captured subject into an electrical signal, comprising a viewfinder, and the viewfinder is a display panel that is relatively movable in the optical axis direction with respect to the heat radiation part, and a heat transfer part in which each part is connected to the display panel and the heat radiation part, and the heat transfer part is deformed according to the movement of the display panel with respect to the heat radiation part.

[0041] As a result, in the viewfinder, the heat transfer part connected to the display panel and the heat dissipation part is deformed according to the movement of the heat dissipation part of the display panel, so that the heat generated in the display panel is conducted to the heat dissipation part regardless of the movement position of the heat dissipation part of the display panel.

Brief Description of the Drawings

[0042]

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Embodiments for Carrying Out the Invention

[0043] Hereinafter, embodiments for carrying out the present technology finder and imaging device will be described with reference to the accompanying drawings.

[0044] The embodiments for carrying out the invention shown below are those in which the present technology imaging device is applied to a still camera and the present technology finder is applied to the finder provided in this still camera.

[0045] In addition, the application ranges of the present technology imaging device and finder are not limited to a still camera and the finder provided in a still camera, respectively. The present technology imaging device and finder can be widely applied to various imaging devices having various imaging functions such as video cameras and portable information terminals, and finders provided in these imaging devices.

[0046] In the following description, the front, rear, up, down, left, and right directions are shown in the direction seen from the photographer during shooting of a still camera. Therefore, the subject side (object side) is in the front, and the image plane side is in the rear. In addition, the front, rear, up, down, left, and right directions shown below are for convenience of explanation, and the implementation of the present technology is not limited to these directions.

[0047] In addition, the lens shown below includes both those composed of a single lens and those composed of a plurality of lenses as a lens group.

[0048] <Schematic Configuration of Imaging Device> The imaging device 1 is composed of a device body 2 and a lens barrel 70 (see Fig. 1). The lens barrel 70 is, for example, an interchangeable lens detachable from the device body 2. In addition, the present technology can also be applied to a type in which a lens unit having the same structure as the internal structure of the lens barrel 70 is incorporated inside the device body, or a retractable type in which this lens unit protrudes or is housed with respect to the device body.

[0049] The apparatus main body 2 is formed by arranging respective required components inside and outside the outer housing 3.

[0050] On the outer housing 3, for example, various operation units 4, 4,... are arranged on the upper surface and the rear surface. As the operation units 4, 4,..., for example, a power button, a shutter button, a zoom lever, a mode changeover lever, etc. are provided.

[0051] A display 5 is arranged on the rear surface of the outer housing 3. A viewfinder 6 is provided at the upper end portion of the outer housing 3. The optical axis direction of the viewfinder 6 is in the front - rear direction. Incidentally, in the imaging apparatus 1, the display 5 may also be used as a viewfinder.

[0052] An opening (not shown) having a circular shape is formed on the front surface of the outer housing 3, and a portion around the opening is provided as a mount portion for mounting the lens barrel 70.

[0053] The lens barrel 70 is composed of a substantially cylindrical outer cylinder 71 whose axial direction is in the front - rear direction and respective required components attached to or supported inside and outside the outer cylinder 71. The axial direction of the lens barrel 70 coincides with the optical axis direction of the entire imaging apparatus 1.

[0054] The lens barrel 70 is attached to the apparatus main body 2 by coupling the rear end portion to the mount portion, for example, by bayonet coupling. An operation ring 72 that functions as a zoom ring and a focus ring is provided on the lens barrel 70. The operation ring 72 is rotatably supported by the outer cylinder 71, and zooming and focusing are performed by rotating the operation ring 72.

[0055] Inside the lens barrel 70, a plurality of lenses (not shown) are spaced apart in the optical axis direction (front - rear direction), and these lenses are constituted by a movable lens (movable lens group) movable in the optical axis direction and a fixed lens (fixed lens group) immovable in the optical axis direction.

[0056] <Configuration of the viewfinder> The viewfinder 6 has a viewfinder case portion 3a configured as part of the outer casing 3 and an internal structure 7 disposed inside the viewfinder case portion 3a (see FIGS. 1 and 2). The internal structure 7 has an optical block 8, a movable block 9, a relay portion 10, and a heat transfer portion 11 (see FIGS. 2 to 5).

[0057] (Optical block) The optical block 8 has a lens case 12 formed of a resin material or the like and a plurality of lenses 13 disposed inside the lens case 12, and the plurality of lenses 13 are arranged in the optical axis direction (front-rear direction). The lenses 13 are arranged while being held by an annular lens holder 14 that also functions as a spacer.

[0058] The lens case 12 has a substantially rectangular tube-shaped lens housing portion 15 and projecting portions 16, 17 projecting from the left and right side surfaces 15a, 15a at the rear end portion of the lens housing portion 15, respectively. The projecting portions 16, 17 are provided as attachment portions to be attached, for example, by screwing or the like to the rear surface portion of the viewfinder case portion 3a. Further, a support hole 16a penetrating in the front-rear direction is formed in one of the projecting portions 16.

[0059] The lens case 12 is provided with mounting bosses 18, 18 projecting outward from the side surfaces 15a, 15a of the lens housing portion 15, respectively. The lens case 12 is provided with guide projections 19, 19,... projecting outward from the side surfaces 15a, 15a of the lens housing portion 15, respectively (only one of the guide projections 19, 19 is shown in FIG. 3). The guide projections 19, 19,... are provided, for example, in two on the left and right at intervals in the front-rear direction and project from the lower end portions of the side surfaces 15a, 15a.

[0060] A bracket 20 is attached to one side surface 15a of the lens housing portion 15. The bracket 20 has a spring support plate portion 21 that extends forward and backward in the left - right direction, a fastening portion 22 that protrudes laterally from the rear end portion of the spring support plate portion 21, and an arm portion 23 that protrudes laterally from the front end portion of the spring support plate portion 21. A support hole 23a that penetrates forward and backward is formed in the arm portion 23.

[0061] The bracket 20 is attached to the protruding portion 16 of the lens housing portion 15 by screwing or the like with the spring support plate portion 21 in contact with the side surface 15a. In a state where the bracket 20 is attached to the lens housing portion 15, the support hole 23a of the arm portion 23 and the support hole 16a of the protruding portion 16 are coaxially positioned in the front - rear direction.

[0062] An engagement spring 24 is attached to the spring support plate portion 21. The engagement spring 24 is a leaf spring and is formed in a shape that extends substantially vertically. The upper end portion is attached to the spring support plate portion 21, and the lower end portion is provided as an engagement portion 24a.

[0063] A rotary cam 25 is supported by the lens housing portion 15 and the bracket 20. The axial direction of the rotary cam 25 is the front - rear direction, and it is rotatable about an axis with respect to the protruding portion 16 of the lens housing portion 15 and the arm portion 23 of the bracket 20.

[0064] Both end portions of the rotary cam 25 in the axial direction are respectively provided as supported shaft portions 26, 27, and a connection hole 26a that opens rearward is formed in the rear - side supported shaft portion 26. A gear engagement portion 28 is provided at a position near the front end of the rotary cam 25. A plurality of gear - shaped engagement grooves 28a, 28a, ··· are formed side - by - side in the circumferential direction on the outer peripheral surface of the gear engagement portion 28.

[0065] A cam surface 25a is formed on the rotary cam 25. The cam surface 25a is formed in a shape that extends in the circumferential direction facing substantially rearward. The cam surface 25a is formed as an inclined surface that is displaced in the front - rear direction as it goes in the circumferential direction.

[0066] The rotary cam 25 has supported shaft portions 26 and 27 respectively inserted into the support holes 16a and 23a and supported by the protruding portion 16 and the arm portion 23, and is rotatable about the axis with respect to the lens case 12. In the state where the rotary cam 25 is supported by the protruding portion 16 and the arm portion 23, the engaging portion 24a of the engaging spring 24 is pressed against the gear engaging portion 28 by the biasing force, and the engaging portion 24a is engaged with the engaging groove 28a, whereby the rotary cam 25 is held by the engaging spring 24.

[0067] The rotary cam 25 is connected to a diopter adjustment dial 29 via a connecting shaft 30. A part of the diopter adjustment dial 29 is exposed outside the outer casing 3 through an arrangement hole (not shown) formed in the outer casing 3, and is rotated by the operation of the photographer. The rear end portion of the connecting shaft 30 is coupled to the diopter adjustment dial 29, and the front end portion is inserted into the connecting hole 26a and coupled to the rotary cam 25. Accordingly, the diopter adjustment dial 29 is connected to the rotary cam 25 via the connecting shaft 30, and when the photographer rotates the diopter adjustment dial 29, the rotary cam 25 is rotated along with the operation of the diopter adjustment dial 29.

[0068] (Movable block) The movable block 9 has a moving base 31 movably supported by the lens case 12 of the optical block 8 and a display panel 32 attached to the moving base 31.

[0069] The moving base 31 is formed of a resin material or the like, and has a substantially rectangular mounting surface portion 33 facing in the substantially front-rear direction, an upper surface portion 34 protruding rearward from the upper end portion of the mounting surface portion 33, a lower surface portion 35 protruding rearward from the lower end portion of the mounting surface portion 33, and side surface portions 36 and 37 protruding rearward from the left and right sides of the mounting surface portion 33, respectively.

[0070] A frame portion 33a is provided on the front side of the mounting surface portion 33, and a light transmission hole 33b penetrating through in the front-rear direction is formed in the mounting surface portion 33. A coated glass plate (optical filter) 38 is attached to the mounting surface portion 33 so as to cover the light transmission hole 33b on the rear side from the rear.

[0071] The side surface portion 36 has a base portion 39 formed in a horizontally long substantially rectangular shape, an upper portion 40 protruding upward from the front half of the base portion 39, and a protrusion 41 protruding outward laterally from the rear end portion of the base portion 39. Insertion holes 39a penetrating left and right are formed in a portion excluding the front end side portion of the base portion 39. The upper portion 40 is provided with a spring support shaft portion 40a protruding outward laterally and a spring hanging portion 40b positioned at the upper end portion. A cam protrusion 41a protruding forward is provided on the front surface side of the protrusion 41.

[0072] The side surface portion 37 has a base portion 42 formed in a horizontally long substantially rectangular shape and a protrusion 43 protruding upward from the front half of the base portion 42.

[0073] On the moving base 31, guide grooves 31a, 31a extending in the front - rear direction are formed on the opposing surface sides of the base portion 39 and the base portion 42 (only one guide groove 31a is shown in FIG. 3).

[0074] The display panel 32 is attached to the attachment surface portion 33 of the moving base 31 in a state where the light - transmitting holes 33b are covered from the front and the frame portion 33a is inserted from the front.

[0075] The display panel 32 has a frame - shaped holding frame 32a and a display portion 32b attached to the rear surface of the holding frame 32a, and an image of a subject is displayed on the display portion 32b. Heat is generated in the display portion 32b during driving. As the display portion 32b, for example, organic electro - luminescence (EL) is used.

[0076] One end portion of a flexible printed wiring board 80 is connected to the lower end portion of the display portion 32b. The other end of the flexible printed wiring board 80 is connected to a control board (not shown) via a connector (not shown).

[0077] The movable block 9 configured as described above has guide protrusions 19, 19, ··· inserted into the guide grooves 31a, 31a, respectively, and is supported so as to be movable in the front-rear direction with respect to the optical block 8. When the movable block 9 is moved in the front-rear direction with respect to the optical block 8, it is also moved in the front-rear direction with respect to the heat dissipation part described later.

[0078] In a state where the movable block 9 is supported by the optical block 8, one mounting boss 18 of the lens case 12 is inserted into the insertion hole 39a of the base part 39, and the cam protrusion 41a of the protrusion 41 is brought into contact with the cam surface 25a of the rotary cam 25 from the rear.

[0079] (Relay part) The relay part 10 has a connecting arm 44 attached to the optical block 8 and an attaching plate 45 attached to the connecting arm 44.

[0080] The connecting arm 44 has a base part 46 extending left and right and arm parts 47, 48 protruding rearward from the left and right end parts of the base part 46, respectively. A spring protrusion 47a protruding outward laterally is provided on the arm part 47. The attaching plate 45 is formed in a substantially rectangular shape facing the front-rear direction and is attached to the base part 46 from the front by screwing or the like.

[0081] A cushion 49 is attached to the front surface of the attaching plate 45. The cushion 49 is attached to the attaching plate 45 by an adhesive sheet 50 functioning as a double-sided tape, and the front end side portion thereof protrudes forward from the attaching plate 45.

[0082] The relay part 10 has the arm parts 47, 48 attached to the mounting bosses 18, 18 of the lens case 12 by screwing or the like. In a state where the arm parts 47, 48 are attached to the mounting bosses 18, 18, the arm parts 47, 48 are positioned outside the side surfaces 36, 37 of the moving base 31 in the left-right direction.

[0083] In the state where the movable block 9 is movably supported by the optical block 8 and the relay portion 10 is attached to the optical block 8 as described above, a biasing spring 51 is supported by a spring support shaft portion 40a provided on a side surface portion 36 of the movable block 9. The biasing spring 51 has a coil portion 51a and a pair of arm portions 51b and 51c. The coil portion 51a is supported by the spring support shaft portion 40a, the arm portion 51b is engaged with a spring hanging portion 40b of the moving base 31, and the arm portion 51c is engaged with a spring projection 47a of the connecting arm 44.

[0084] Accordingly, a biasing force in the direction of moving forward with respect to the optical block 8 is applied to the movable block 9 by the biasing spring 51. Since a biasing force in the direction of moving forward is applied to the movable block 9 by the biasing spring 51, a cam projection 41a provided on a projection 41 of the movable block 9 is pressed against a cam surface 25a of the rotary cam 25 from behind.

[0085] Note that the arm portion 51c of the biasing spring 51 may be engaged with a part of the optical block 8 instead of the spring projection 47a of the relay portion 10.

[0086] Since the cam projection 41a is pressed against the cam surface 25a from behind, it is slid relative to the cam surface 25a as the rotary cam 25 rotates. Accordingly, the movable block 9 having the display panel 32 is moved in the optical axis direction (front-rear direction) with respect to the optical block 8 according to the engagement position of the cam projection 41a with respect to the cam surface 25a as the rotary cam 25 rotates.

[0087] (Heat transfer portion) The heat transfer portion 11 is a heat dissipation sheet, and a single sheet-like member having a substantially rectangular shape is bent into a predetermined shape to form an annular shape (see FIGS. 3, 5, and 6). As the heat transfer portion 11, for example, a graphite sheet is used.

[0088] The heat transfer part 11 includes a first connection part 52 facing the front-rear direction, a first deformation part 53 continuous with the upper edge of the first connection part 52, a second deformation part 54 continuous with the lower edge of the first connection part 52, and a second connection part 55 where the part excluding the upper and lower end parts in front of the first connection part 52 faces the first connection part 52.

[0089] The first connection part 52 is attached to the front surface of the display part 32b and connected to the display panel 32.

[0090] The first deformation part 53 consists of a first part 53a continuous with the upper edge of the first connection part 52 and bent downward with respect to the first connection part 52, and a second part 53b continuous with the upper edge of the second connection part 55 and bent downward with respect to the second connection part 55. The lower edge of the first part 53a and the lower edge of the second part 53b are continuous. The part where the first connection part 52 and the first part 53a are continuous, the part where the first part 53a and the second part 53b are continuous, and the part where the second part 53b and the second connection part 55 are continuous are formed as bending parts 56, 57, 58 respectively. The bending part 56 and the bending part 58 are mountain folds, and the bending part 57 is a valley fold.

[0091] The second deformation part 54 consists of a first part 54a continuous with the lower edge of the first connection part 52 and bent upward with respect to the first connection part 52, and a second part 54b continuous with the lower edge of the second connection part 55 and bent upward with respect to the second connection part 55. The upper edge of the first part 54a and the upper edge of the second part 54b are continuous. The part where the first connection part 52 and the first part 54a are continuous, the part where the first part 54a and the second part 54b are continuous, and the part where the second part 54b and the second connection part 55 are continuous are formed as bending parts 59, 60, 61 respectively. The bending part 59 and the bending part 61 are mountain folds, and the bending part 60 is a valley fold.

[0092] The heat transfer part 11 is configured as described above, and the first deformation part 53 and the second deformation part 54 are located in the space 200 between the first connection part 52 and the second connection part 55 (see FIG. 6). Further, when an axis extending in the optical axis direction through the central point in the direction orthogonal to the optical axis direction of the heat transfer part 11 is defined as the reference axis J, the first deformation part 53 and the second deformation part 54 are positioned substantially symmetrically with respect to the reference axis J.

[0093] The second connection part 55 is constituted by both end portions in the longitudinal direction of a sheet-like member, and includes a first portion 55a that is continuous with the second portion 53b and is located above, and a second portion 55b that is continuous with the second portion 54b and is located below. The upper end portion of the first portion 55a and the lower end portion of the second portion 54b are bent in directions substantially orthogonal to the other portions, respectively.

[0094] The heat transfer part 11 is configured as described above, and the portions excluding the upper and lower end portions of the first connection part 52 and the second connection part 55 are positioned in a state of facing each other in the front-rear direction, and the first deformation part 53 and the second deformation part 54 are located between the first connection part 52 and the second connection part 55.

[0095] The heat transfer part 11 is attached and connected to the front surface of the display part 32b by a first adhesive sheet 62 having high thermal conductivity that functions as a double-sided tape for the first connection part 52, and the second connection part 55 is attached to the front surface of the cushion 49 in a state of being arranged vertically by second adhesive sheets 63, 63 having high thermal conductivity that function as double-sided tapes. Note that the second connection part 55 may be formed as a single member without being arranged vertically. The upper and lower end portions of the second connection part 55 are attached to the cushion 49 by the second adhesive sheets 63, 63 in a state of straddling the attachment plate 45 of the relay part 10 from above and below, respectively.

[0096] The first connection part 52 is brought into surface contact with the display part 32b via the first adhesive sheet 62, and the second connection part 55 is brought into surface contact with the cushion 49 via the second adhesive sheets 63, 63.

[0097] The second connection part 55 attached to the cushion 49 is pressed against the heat dissipation part 90 from the rear and connected.

[0098] The heat dissipation part 90 is, for example, the viewfinder case part 3a. Also, the heat dissipation part 90 may be, for example, a structure arranged inside the viewfinder case part 3a. The heat dissipation part 90 is a part arranged in a fixed state, and it is desirable that it is formed of a material with high heat dissipation performance, such as a metal material, etc.

[0099] In a state where the second connection part 55 is pressed against the heat dissipation part 90 from the rear, the second connection part 55 of the heat transfer part 11 is attached to the attachment plate 45 via the cushion 49 and a part of the cushion 49 protrudes forward from the attachment plate 45. Therefore, due to the elasticity of the cushion 49, the second connection part 55 is pressed against the heat dissipation part 90, and the second connection part 55 is connected in a state of surface contact with the heat dissipation part 90.

[0100] As described above, due to the elasticity of the cushion 49, the second connection part 55 is pressed against the heat dissipation part 90, and the second connection part 55 is brought into contact with the heat dissipation part 90 without passing through an adhesive sheet, thereby ensuring high heat conduction efficiency of the heat conducted from the second connection part 55 to the heat dissipation part 90.

[0101] However, the second connection part 55 may be attached to the heat dissipation part 90 with an adhesive sheet.

[0102] As described above, in the viewfinder 6, since the first connection part 52 of the heat transfer part 11 is connected to the display part 32b of the display panel 32 and the second connection part 55 of the heat transfer part 11 is connected to the heat dissipation part 90, the heat generated in the display part 32b is conducted to the heat dissipation part 90 by the heat transfer part 11.

[0103] <Layer structure of the heat transfer part> Hereinafter, the layer structure of the heat transfer part 11 will be described (see Fig. 7).

[0104] The heat transfer part 11 is formed in a sheet shape and has a plurality of heat transfer sheets 64, 64,... arranged in the thickness direction (see Fig. 7). The heat transfer sheets 64, 64,... are not laminated, and gaps are respectively formed between the heat transfer sheets 64, 64,... in the thickness direction.

[0105] The heat transfer sheets 64, 64,... are adhesively fixed in the thickness direction by an adhesive 65 at a portion corresponding to the first connection part 52, and are adhesively fixed in the thickness direction by adhesives 65, 65 respectively at portions corresponding to the first part 55a and the second part 55b of the second connection part 55. Therefore, the heat transfer sheets 64, 64,... can be independently deformed at portions corresponding to the first deformation part 53 and the second deformation part 54.

[0106] As described above, the heat transfer part 11 has a plurality of heat transfer sheets 64, 64,... arranged in the thickness direction, making the heat transfer part 11 easy to bend and difficult for a load to be applied from the heat transfer part 11 to the display panel 32. After ensuring high heat transfer performance, the display panel 32 can be smoothly and stably moved relative to the heat dissipation part 90.

[0107] Also, since the heat transfer sheets 64, 64,... are not laminated and have gaps in the thickness direction, when the first deformation part 53 and the second deformation part 54 are deformed, it is difficult for loads to be mutually applied between the heat transfer sheets 64, 64,..., and the load on the display panel 32 can be reduced.

[0108] Furthermore, by arranging the heat transfer sheets 64, 64,... in the thickness direction, even if the thicknesses of the first deformation part 53 and the second deformation part 54 are increased, the first deformation part 53 and the second deformation part 54 will not become overly rigid. While maintaining the flexible state of the first deformation part 53 and the second deformation part 54 and suppressing the generation of loads due to deformation, the heat transfer amount by the heat transfer part 11 can be increased.

[0109] Furthermore, since a plurality of heat transfer sheets 64, 64, ··· are fixed in the thickness direction in a part of the heat transfer part 11, the heat transfer sheets 64, 64, ··· are not separated, and heat is transferred in the thickness direction between the plurality of heat transfer sheets, ensuring a stable connection state between the display panel 32 and the heat dissipation part 90 of the heat transfer part 11 and improving the heat transfer efficiency by the heat transfer sheets 64, 64, ···.

[0110] <Operation in the viewfinder> The operation in the viewfinder 6 configured as described above will be described below (see FIGS. 8 to 10).

[0111] In the viewfinder 6, the movable block 9 is moved in the optical axis direction with respect to the optical block 8, the relay part 10, and the heat dissipation part 90. The movement of the movable block 9 with respect to the optical block 8 is performed by rotating the rotary cam 25 as the above-described operation of the diopter adjustment dial 29, and the display panel 32 is moved in the optical axis direction as the movable block 9 moves. Therefore, when the display panel 32 is moved in the optical axis direction with respect to the optical block 8, the position of the display panel 32 in the optical axis direction with respect to the lens 13 of the optical block 8 is changed, and the diopter adjustment is performed.

[0112] The display panel 32 is movable in the optical axis direction between a first moving position which is the rear moving end closest to the lens 13 and a second moving position which is the front moving end farthest from the lens 13.

[0113] In a state where the display panel 32 is at the first moving position, the deformation amount of the first portion 53a of the first deformed portion 53 with respect to the first connecting portion 52 and the deformation amount (bending amount) of the second portion 53b of the first deformed portion 53 with respect to the second connecting portion 55 are minimized, and the distance between the first connecting portion 52 and the second connecting portion 55 is maximized (see FIG. 8). Therefore, the distance between the bent portion 57 of the first deformed portion 53 and the bent portion 60 of the second deformed portion 54 is maximized in the vertical direction.

[0114] When the display panel 32 is moved from the first moving position toward the second moving position, the deformation amounts of the first deformed portion 53 and the second deformed portion 54 increase, and the distance between the first connecting portion 52 and the second connecting portion 55 decreases (see FIG. 9).

[0115] When the display panel 32 is moved to the second moving position, the deformation amounts of the first deformed portion 53 and the second deformed portion 54 become the largest, and the distance between the first connecting portion 52 and the second connecting portion 55 becomes the smallest (see FIG. 10). Therefore, the distance between the bent portion 57 of the first deformed portion 53 and the bent portion 60 of the second deformed portion 54 becomes the smallest in the vertical direction.

[0116] Conversely, when the display panel 32 is moved from the second moving position to the first moving position, the deformation amounts of the first deformed portion 53 and the second deformed portion 54 become the smallest, and the distance between the first connecting portion 52 and the second connecting portion 55 becomes the largest (see FIG. 8).

[0117] When the display panel 32 is moved between the first moving position and the second moving position in this way, the deformation amounts of the first deformed portion 53 and the second deformed portion 54 change and expand and contract, and it is difficult for a load to be applied to the display panel 32 from the first deformed portion 53 and the second deformed portion 54.

[0118] The heat generated in the display panel 32 is conducted by the heat transfer portion 11 to the heat dissipation portion 90 and is released from the heat dissipation portion 90 to the outside of the outer casing 3. Therefore, the temperature rise of the display panel 32 is suppressed, and a good driving state of the display panel 32 is ensured.

[0119] As described above, the heat transfer portion 11 is provided with a first connecting portion 52 connected to the display panel 32 and a second connecting portion 55 connected to the heat dissipation portion 90, and the heat transfer portion 11 is provided with a first deformed portion 53 and a second deformed portion 54 between the first connecting portion 52 and the second connecting portion 55.

[0120] Therefore, since the first deformation part 53 and the second deformation part 54 are deformed between the first connection part 52 and the second connection part 55 according to the moving position with respect to the heat radiation part 90 of the display panel 32, it is possible to efficiently release the heat generated in the display panel 32 regardless of the relative moving position with respect to the heat radiation part 90 of the display panel 32 while ensuring miniaturization.

[0121] Further, when the display panel 32 moves, the first deformation part 53 and the second deformation part 54 expand and contract according to the movement with respect to the heat radiation part 90 of the display panel 32.

[0122] Therefore, since the first deformation part 53 and the second deformation part 54 are deformed by expanding and contracting according to the movement with respect to the heat radiation part 90 of the display panel 32, the first deformation part 53 and the second deformation part 54 can be deformed in a small space, and the heat generated in the display panel 32 can be efficiently released without increasing the size of the viewfinder 6.

[0123] Furthermore, since the first deformation part 53 and the second deformation part 54 are deformed in a state of being located in the space 200 formed between the display panel 32 and the heat radiation part 90, the first deformation part 53 and the second deformation part 54 are not located outside the display panel 32 in the direction orthogonal to the optical axis direction. Therefore, it is possible to avoid interference between the heat transfer part 11 and other members located outside the display panel 32 and ensure an appropriate moving state of the display panel 32 and the first deformation part 53 and the second deformation part 54.

[0124] Moreover, since the first deformation part 53 and the second deformation part 54 are located in the space 200, the existing area of the heat transfer part 11 becomes smaller, and the heat generated in the display panel 32 can be efficiently released while ensuring miniaturization of the viewfinder 6.

[0125] In addition, the first deformation part 53 and the second deformation part 54 are provided at intervals in the direction orthogonal to the optical axis direction, and the heat generated in the display panel 32 is transmitted to the heat radiation part 90 through the plurality of first deformation parts 53 and second deformation parts 54.

[0126] Therefore, there are multiple heat transfer paths from the display panel 32 to the heat radiating portion 90, and it is possible to improve the heat radiation efficiency of the heat generated in the display panel 32.

[0127] In addition, in the above, the heat transfer portion 11 having the two heat transfer paths of the first deformed portion 53 and the second deformed portion 54 is shown as an example, but the heat transfer portion 11 may be configured such that only one of the first deformed portion 53 and the second deformed portion 54 is provided.

[0128] Furthermore, the first deformed portion 53 and the second deformed portion 54 are positioned substantially symmetrically with reference to a reference axis J that passes through the central point in the direction orthogonal to the optical axis direction of the heat transfer portion 11 and extends in the optical axis direction.

[0129] Therefore, since the first deformed portion 53 and the second deformed portion 54 that are substantially symmetric with respect to the display panel 32 are deformed, it is difficult to apply a load in a direction biased from the first deformed portion 53 and the second deformed portion 54 to the display panel 32, and the display panel 32 can be moved with respect to the heat radiating portion 90 in a stable state.

[0130] Furthermore, three bending portions 56, 57, 58 and three bending portions 59, 60, 61 are respectively formed in the first deformed portion 53 and the second deformed portion 54.

[0131] Therefore, since the first deformed portion 53 and the second deformed portion 54 are deformed with reference to the bending portions 56, 57, 58 and the bending portions 59, 60, 61, the configuration and operation of the first deformed portion 53 and the second deformed portion 54 are simple, and the configuration of the heat transfer portion 11 can be simplified.

[0132] In addition, the heat transfer portion 11 is formed in a sheet shape, and since the sheet-shaped heat transfer portion 11 is deformed in accordance with the movement of the display panel 32 with respect to the heat radiating portion 90, the heat transfer portion 11 can be deformed in a small space and the heat transfer portion 11 becomes lightweight, and the heat generated in the display panel 32 can be efficiently released without causing the finder 6 to become large-sized or heavy.

[0133] Furthermore, the heat transfer part 11 is formed in an annular shape by a single sheet-like member, and the heat generated in the display panel 32 is conducted to the heat dissipation part 90 by the annular heat transfer part 11. Therefore, the heat transfer part 11 can be formed by a single member, and the heat generated in the display panel 32 can be efficiently dissipated without increasing the number of parts.

[0134] Furthermore, a graphite sheet is used as the heat transfer part 11, and since graphite is a material having high thermal conductivity and flexibility, the heat transfer efficiency from the display panel 32 to the heat dissipation part 90 can be improved, and the load applied to the display panel 32 from the heat transfer part 11 can be reduced.

[0135] In addition, the viewfinder 6 is provided with an optical block 8 arranged in a fixed state and a movable block 9 to which the display panel 32 is attached. When the movable block 9 is moved in the optical axis direction with respect to the optical block 8, the display panel 32 is moved with respect to the heat dissipation part 90.

[0136] Therefore, it becomes possible to provide a structure for moving the optical block 8 and the movable block 9 in the optical axis direction, and the display panel 32 can be moved in the optical axis direction regardless of the shape, size, and type of the display panel 32, thereby improving the degree of freedom in design.

[0137] Furthermore, a relay part 10 attached to the optical block 8 is provided, and a second connection part 55 of the heat transfer part 11 is attached to the relay part 10.

[0138] Therefore, since the heat transfer part 11 is connected to the heat dissipation part 90 in a state where the heat transfer part 11 is attached to the relay part 10 attached to the optical block 8 arranged in a fixed state, the positional accuracy of the heat transfer part 11 with respect to the heat dissipation part 90 is increased, and the heat transfer part 11 can be connected to the heat dissipation part 90 in a stable state.

[0139] In addition, in the heat transfer part 11, the second connection part 55 is pressed against the heat dissipation part 90 by the elasticity of the cushion 49, and the second connection part 55 is connected in a state of being in surface contact with the heat dissipation part 90. Therefore, a stable contact state of the second connection part 55 with respect to the heat dissipation part 90 is ensured, and the heat transfer efficiency of the heat generated in the display panel 32 to the heat dissipation part 90 can be improved.

[0140] <Modification example of the heat transfer part> Hereinafter, each modification example of the heat transfer part 11 will be described (see FIGS. 11 to 15).

[0141] In the heat transfer part 11A according to the first modification example, five bending parts 66, 66,... are respectively formed in the first deformation part 53 and the second deformation part 54 (see FIG. 11).

[0142] By forming five bending parts 66, 66,... as in the heat transfer part 11A, the number of bendings increases, and miniaturization can be achieved.

[0143] Note that the number of the bending parts 66 formed in the first deformation part 53 and the second deformation part 54 is arbitrary, and may be more than five.

[0144] In the heat transfer part 11B according to the second modification example, the first deformation part 53 is bent so as to be located outside (upper side) the space 200 (see FIG. 12). However, in the heat transfer part 11B according to the second modification example, the second deformation part 54 may be bent so as to be located outside (lower side) the space 200.

[0145] In the heat transfer part 11C according to the third modification example, the first deformation part 53 and the second deformation part 54 are bent so as to be located outside the space 200 (see FIG. 13).

[0146] By bending at least one of the first deformation part 53 and the second deformation part 54, such as the heat transfer part 11B or the heat transfer part 11C, to be located outside the space 200, when connecting the heat transfer parts 11B and 11C to the display panel 32 or the heat dissipation part 90, the first deformation part 53 or the second deformation part 54 located outside the space 200 is less likely to interfere with the display panel 32 and the heat dissipation part 90, and it becomes possible to improve the workability in the connection work. Further, in order to reduce the size of the heat dissipation structure, it is effective to adopt an inward folding configuration in which the first deformation part 53 and the second deformation part 54 are located in the space 200. However, at least a part of the first deformation part 53 and the second deformation part 54 may be configured to be outward folded due to an increase in the heat transfer path or the convenience of the assembly workability.

[0147] The heat transfer part 11D according to the fourth modification example is provided with a third deformation part 67 in addition to the first deformation part 53 and the second deformation part 54 (see FIG. 14). Both ends of the third deformation part 67 are continuous with the first connection part 52 and the second connection part 55 and are positioned in a state of straddling one of the left and right side surfaces of the attachment plate 45. The number of bending parts of the third deformation part 67 is arbitrary, and the bending part may be either a mountain fold or a valley fold.

[0148] Since the heat transfer part 11D has the third deformation part 67 in addition to the first deformation part 53 and the second deformation part 54, there are three heat transfer paths from the display panel 32 to the heat dissipation part 90, and it is possible to further improve the heat dissipation efficiency of the heat generated in the display panel 32.

[0149] The heat transfer part 11E according to the fifth modification example is provided with a fourth deformation part 68 in addition to the first deformation part 53, the second deformation part 54, and the third deformation part 67 (see FIG. 15). Both ends of the fourth deformation part 68 are continuous with the first connection part 52 and the second connection part 55 and are positioned in a state of straddling one of the left and right side surfaces of the attachment plate 45, and are spaced apart from the third deformation part 67 in the left - right direction. The number of bending parts of the fourth deformation part 68 is arbitrary, and the bending part may be either a mountain fold or a valley fold.

[0150] Since the heat transfer section 11E has a fourth deformed portion 68 in addition to the first deformed portion 53, the second deformed portion 54, and the third deformed portion 67, there are four heat transfer paths from the display panel 32 to the heat radiating section 90, and it is possible to further improve the heat radiation efficiency of the heat generated in the display panel 32.

[0151] Further, since the first deformed portion 53 and the second deformed portion 54 of the heat transfer section 11E are vertically spaced apart from each other and the third deformed portion 67 and the fourth deformed portion 68 are horizontally spaced apart from each other, it is difficult to apply a load in a direction biased from the first deformed portion 53, the second deformed portion 54, the third deformed portion 67, and the fourth deformed portion 68 to the display panel 32, and the display panel 32 can be moved relative to the heat radiating section 90 in a stable state.

[0152] In addition, in the above description, the configuration in which the number of heat transfer paths from the display panel 32 to the heat radiating section 90 is four or less has been described. However, in the viewfinder 6, the number of heat transfer paths may be five or more depending on the configuration of the heat transfer section. Further, the heat transfer section 11 (including the heat transfer sections 11A to 11E) may be configured such that two deformed portions located between the first connection portion 52 and the second connection portion 55 are located horizontally.

[0153] <Summary> As described above, in the viewfinder 6 and the imaging device 1, there are provided a display panel 32 that is relatively movable in the optical axis direction with respect to the heat radiating section 90, and a heat transfer section 11 (11A, 11B, 11C, 11D, 11E) that is connected to the display panel 32 and the heat radiating section 90, and the heat transfer section 11 is deformed in accordance with the movement of the display panel 32 with respect to the heat radiating section 90.

[0154] Therefore, since the heat transfer section 11 connected to the display panel 32 and the heat radiating section 90 is deformed in accordance with the movement of the display panel 32 with respect to the heat radiating section 90, the heat generated in the display panel 32 is conducted to the heat radiating section 90 regardless of the movement position of the display panel 32 with respect to the heat radiating section 90, and good heat dissipation regarding the heat generated in the display panel 32 can be ensured regardless of the position of the display panel 32.

[0155] <Others> In the above, the finder 6 in which the display panel 32 is moved in the optical axis direction with respect to the optical block 8 and the heat radiation unit 90 is shown as an example. However, the display panel 32 may have a configuration in which it is relatively moved with respect to the optical block 8 and the heat radiation unit 90. The present technology can also be applied to, for example, a configuration in which the display panel 32 and the heat radiation unit 90 are separately moved with respect to the optical block 8, or a configuration in which the optical block 8 and the heat radiation unit 90 are moved with respect to the display panel 32.

[0156] <One Embodiment of the Imaging Device> Hereinafter, an example of the system configuration of a still camera according to one embodiment of the present technology imaging device will be described (see FIG. 16).

[0157] An imaging device (still camera) 100 (corresponding to the imaging device 1) includes a lens unit 101 that performs an imaging function, a camera signal processing unit 102 that performs signal processing such as analog-digital conversion of the captured image signal, and an image processing unit 103 that performs recording and reproduction processing of the image signal.

[0158] The imaging device 100 also includes an image display unit 104 such as a liquid crystal panel that displays the captured image or the like, an R / W (reader / writer) 105 that writes and reads the image signal to / from the memory 1000, a CPU (Central Processing Unit) 106 that controls the entire imaging device 100, an input unit 107 (corresponding to the operation unit 4) including various switches or the like for performing required operations by the user, and a lens drive control unit 108 that controls the drive of the lens disposed in the lens unit 101.

[0159] The lens unit 101 is composed of an optical system including a lens group 109 (corresponding to the lens 13), an imaging element 110 such as a CCD (Charge Coupled Device) or a CMOS (Complementary Metal-Oxide Semiconductor), and the like.

[0160] The camera signal processing unit 102 performs various signal processes such as conversion of the output signal from the imaging device 110 into a digital signal, noise removal, image quality correction, and conversion into luminance / chrominance signals.

[0161] The image processing unit 103 performs compression encoding / expansion decoding processing of the image signal based on a predetermined image data format and conversion processing of data specifications such as resolution.

[0162] The image display unit 104 has a function of displaying various data such as the operation state with respect to the user input unit 107 and the captured image.

[0163] R / W 105 writes the image data encoded by the image processing unit 103 to the memory 1000 and reads the image data recorded in the memory 1000.

[0164] The CPU 106 functions as a control processing unit that controls each circuit block provided in the imaging device 100, and controls each circuit block based on an instruction input signal from the input unit 107 or the like.

[0165] The input unit 107 is composed of, for example, a shutter release button for performing a shutter operation, a selection switch for selecting an operation mode, etc., and outputs an instruction input signal corresponding to the operation by the user to the CPU 106.

[0166] The lens drive control unit 108 controls a motor (not shown) or the like that drives each lens of the lens group 109 based on a control signal from the CPU 106.

[0167] The memory 1000 is, for example, a semiconductor memory (memory card) that is detachable with respect to a slot connected to the R / W 105 or an internal memory disposed inside the imaging device 100.

[0168] The operation of the imaging device 100 will be described below.

[0169] In the standby state of shooting, under the control of the CPU 106, the image signal captured by the lens unit 101 is output to the image display unit 104 via the camera signal processing unit 102 and displayed as a camera-through image. Also, when an instruction input signal for zooming is input from the input unit 107, the CPU 106 outputs a control signal to the lens drive control unit 108, and a predetermined lens of the lens group 109 is moved based on the control of the lens drive control unit 108.

[0170] When the shutter (not shown) of the lens unit 101 is operated by the instruction input signal from the input unit 107, the captured image signal is output from the camera signal processing unit 102 to the image processing unit 103, compressed and encoded, and converted into digital data in a predetermined data format. The converted data is output to the R / W 105 and written to the memory 1000.

[0171] Focusing and zooming are performed by the lens drive control unit 108 moving a predetermined lens of the lens group 109 based on a control signal from the CPU 106.

[0172] When reproducing the image data recorded in the memory 1000, in response to an operation on the input unit 107, predetermined image data is read from the memory 1000 by the R / W 105, and after the decompression and decoding process is performed by the image processing unit 103, the reproduced image signal is output to the image display unit 104 and the reproduced image is displayed.

[0173] In addition, in this technology, "imaging" refers to a series of processes including only a part or all of the processes from the photoelectric conversion process of converting the light captured by the imaging element 110 into an electrical signal, to the conversion of the output signal from the imaging element 110 by the camera signal processing unit 102 into a digital signal, noise removal, image quality correction, conversion into luminance / chrominance signals, etc., the compression encoding / decompression decoding process of the image signal based on a predetermined image data format by the image processing unit 103, the conversion process of data specifications such as resolution, and the writing process of the image signal to the memory 1000 by the R / W 105.

[0174] That is, "imaging" may refer only to the photoelectric conversion process of converting the light captured by the imaging device 110 into an electrical signal, or may refer to the processes such as the conversion of the output signal from the imaging device 110 by the camera signal processing unit 102 into a digital signal, noise removal, image quality correction, conversion into luminance / chrominance signals, etc., starting from the photoelectric conversion process of converting the light captured by the imaging device 110 into an electrical signal. It may also refer to the processes such as the compression encoding / expansion decoding process of the image signal based on a predetermined image data format by the image processing unit 103 and the conversion process of data specifications such as resolution, after passing through the processes such as the conversion of the output signal from the imaging device 110 by the camera signal processing unit 102 into a digital signal, noise removal, image quality correction, conversion into luminance / chrominance signals, etc. It may also refer to the processes such as the conversion of the output signal from the imaging device 110 by the camera signal processing unit 102 into a digital signal, noise removal, image quality correction, conversion into luminance / chrominance signals, etc., and the compression encoding / expansion decoding process of the image signal based on a predetermined image data format by the image processing unit 103 and the conversion process of data specifications such as resolution, or may refer to the writing process of the image signal to the memory 1000 by the R / W 105. In the above processes, the order of each process may be appropriately changed.

[0175] Also, in the present technology, the imaging device 100 may be configured to include only a part or all of the imaging device 110, the camera signal processing unit 102, the image processing unit 103, and the R / W 105 that perform the above processes.

[0176] <The present technology> The present technology can be configured as follows.

[0177] (1) A display panel that is relatively movable in the optical axis direction with respect to the heat dissipation part, A heat transfer part, each part of which is connected to the display panel and the heat dissipation part, The heat transfer part is deformed in accordance with the movement of the display panel with respect to the heat dissipation part Finder

[0178] (2) The heat transfer part is provided with a first connection part connected to the display panel and a second connection part connected to the heat dissipation part, The heat transfer part is provided with a deformation part that is deformed according to the movement of the display panel relative to the heat dissipation part between the first connection part and the second connection part The finder according to (1) above.

[0179] (3) The deformation part expands and contracts according to the movement of the display panel relative to the heat dissipation part The finder according to (2) above.

[0180] (4) The deformation part is located in the space formed between the display panel and the heat dissipation part The finder according to (2) or (3) above.

[0181] (5) A plurality of deformation parts are provided at intervals in a direction perpendicular to the optical axis direction The finder according to any one of (2) to (4) above.

[0182] (6) A pair of deformation parts are provided, When an axis extending in the optical axis direction through the central point in the direction perpendicular to the optical axis direction of the heat transfer part is used as a reference axis, the pair of deformation parts are positioned substantially symmetrically with respect to the reference axis The finder according to (5) above.

[0183] (7) Three bending parts are formed in the deformation part The finder according to any one of (2) to (6) above.

[0184] (8) The heat transfer part is formed in a sheet shape The viewfinder according to any one of (1) to (7) above.

[0185] (9) The heat transfer part has a plurality of heat transfer sheets arranged in the thickness direction. The viewfinder according to (8) above.

[0186] (10) In a part of the heat transfer part, the plurality of heat transfer sheets are fixed in the thickness direction. The viewfinder according to (9) above.

[0187] (11) The heat transfer part is formed in an annular shape. The viewfinder according to any one of (1) to (10) above.

[0188] (12) A graphite sheet is used as the heat transfer part. The viewfinder according to any one of (1) to (11) above.

[0189] (13) An optical block arranged in a state fixed to the outer casing, and A movable block to which the display panel is attached are provided, When the movable block is moved in the optical axis direction with respect to the optical block, the display panel is moved with respect to the heat dissipation part. The viewfinder according to any one of (1) to (12) above.

[0190] (14) A relay part attached to the optical block is provided, A part of the heat transfer part is attached to the relay part. The viewfinder according to (13) above.

[0191] (15) The heat transfer part is attached to the relay part via a cushion. The viewfinder according to (14) above.

[0192] (16) An imaging device that converts an optical image of a captured subject into an electrical signal, A display panel that is movable relative to the heat radiating portion in the optical axis direction, And a heat transfer portion, each part of which is connected to the display panel and the heat radiating portion, The heat transfer portion is deformed according to the movement of the display panel relative to the heat radiating portion Imaging device.

Explanation of reference numerals

[0193] 1 Imaging device 6 Finder 8 Optical block 9 Movable block 10 Relay portion 11 Heat transfer portion 32 Display panel 49 Cushion 52 First connection portion 53 First deformation portion 54 Second deformation portion 55 Second connection portion 56 Bending portion 57 Bending portion 58 Bending portion 59 Bending portion 60 Bending portion 61 Bending portion 64 Heat transfer sheet 90 Heat radiating portion 11A Heat transfer portion 66 Bending portion 11B Heat transfer portion 11C Heat transfer portion 11D Heat transfer portion 67 Third deformation portion 11E Heat transfer portion 68 Fourth deformation portion 200 Space J Reference axis 100 Imaging device 110 Imaging element

Claims

1. A display panel that is movable relative to a heat radiating portion in the optical axis direction, and a heat transfer portion, a part of each being connected to the display panel and the heat radiating portion, wherein the heat transfer portion is deformed according to the movement of the display panel relative to the heat radiating portion finder.

2. The heat transfer portion is provided with a first connection portion connected to the display panel and a second connection portion connected to the heat radiating portion, and the heat transfer portion is provided with a deformation portion that is deformed according to the movement of the display panel relative to the heat radiating portion between the first connection portion and the second connection portion The finder according to claim 1.

3. The deformation portion expands and contracts according to the movement of the display panel relative to the heat radiating portion The finder according to claim 2.

4. The deformation portion is located in a space formed between the display panel and the heat radiating portion The finder according to claim 2.

5. A plurality of the deformation portions are provided at intervals in a direction orthogonal to the optical axis direction The finder according to claim 2.

6. A pair of the deformation portions are provided, and when an axis extending in the optical axis direction through a central point in a direction orthogonal to the optical axis direction of the heat transfer portion is used as a reference axis, the pair of deformation portions are positioned substantially symmetrically with respect to the reference axis The finder according to claim 5.

7. Three bent portions are formed in the deformation portion The finder according to claim 2.

8. The heat transfer portion is formed in a sheet shape The finder according to claim 1.

9. The heat transfer portion has a plurality of heat transfer sheets arranged in the thickness direction The finder according to claim 8.

10. In a part of the heat transfer portion, the plurality of heat transfer sheets are fixed in the thickness direction The finder according to claim 9.

11. The heat transfer portion is formed in an annular shape The finder according to claim 1.

12. A graphite sheet is used as the heat transfer portion The finder according to claim 1.

13. An optical block arranged in a fixed state with respect to an outer housing, and a movable block to which the display panel is attached are provided, wherein the display panel is moved relative to the heat radiating portion by moving the movable block in the optical axis direction with respect to the optical block The finder according to claim 1.

14. A relay portion attached to the optical block is provided, and a part of the heat transfer portion is attached to the relay portion The finder according to claim 13.

15. The heat transfer part is attached to the relay part via a cushion The finder according to claim 14

16. An imaging device that converts an optical image of a captured subject into an electrical signal, and a finder, wherein the finder has a display panel that is relatively movable in the optical axis direction with respect to the heat dissipation part, and a heat transfer part, a part of each being connected to the display panel and the heat dissipation part, wherein the heat transfer part is deformed according to the movement of the display panel with respect to the heat dissipation part Imaging device

Images