JP2013190558A - Light-emitting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a small-sized light emitting device, irradiation light of which is prevented from being blocked by a lens part of an imaging apparatus when installed on the imaging apparatus.SOLUTION: The light-emitting device comprises: a light-emitting part; a storage part receiving a battery for supplying an electric power to cause the light-emitting part to emit light; and a connection part connected to the imaging apparatus. The storage part is provided so that a direction of the storage part corresponding to a longer direction of the battery is substantially orthogonal to a longer direction of the light-emitting part, and so that one end is positioned further forward and upward from the light-emitting device than the other end in the direction corresponding to the longer direction of the battery. The light-emitting part is provided further forward from the light-emitting device than the one end of the storage part. The connection part is arranged further downward from the light-emitting device than the other end of the storage part.

Description

  The present invention relates to a light emitting device that can be attached to and detached from an imaging device.

  In recent years, a light-emitting device that can be attached to and detached from an imaging device such as a digital camera has been required to be downsized in order to improve portability. Therefore, Patent Document 1 proposes a technique capable of efficiently arranging electrical components without generating a useless space in the main body of a strobe device that is a light emitting device.

JP 2010-181552 A

  However, in the technique disclosed in Patent Document 1 described above, the battery and the capacitor are arranged such that the longitudinal direction of the battery and the capacitor is the lateral direction (left-right direction) of the apparatus main body. For this reason, the width of the device main body (the width in the left-right direction) cannot be made smaller than the size of the battery and capacitor in the longitudinal direction, and the strobe device can be downsized no matter how much wasteful space is created in the main body. Have difficulty.

  In addition, pursuing only the miniaturization of the strobe device, when the strobe device is mounted on the image pickup device, the light emitting unit is too close to the lens unit of the image pickup device, and the irradiation light of the strobe device is applied to the lens unit of the image pickup device. It will be blocked.

  In view of the above, an object of the present invention is to provide a small light emitting device in which irradiation light is prevented from being blocked by a lens portion of the imaging device when used by being mounted on the imaging device.

  In order to achieve the above object, a light-emitting device according to the present invention includes a light-emitting unit, a storage unit that stores a battery that supplies power for causing the light-emitting unit to emit light, a connection unit connected to the imaging device, The storage portion has a direction corresponding to the longitudinal direction of the battery of the storage portion substantially perpendicular to the longitudinal direction of the light emission portion, and one side in the direction corresponding to the longitudinal direction of the battery. An end is provided so as to be positioned on the front side and the upper side of the light emitting device with respect to the other end, the light emitting unit is disposed on the front side of the light emitting device with respect to one end of the storage unit, and the connection unit is It is arranged below the light emitting device with respect to the other end of the storage portion.

  According to the present invention, it is possible to provide a small light emitting device in which irradiation light is prevented from being blocked by a lens portion of the imaging device when used by being mounted on the imaging device.

1 is an overall view of a light emitting device according to an embodiment of the present invention. The figure which shows the internal structure of the light-emitting device which is embodiment of this invention. 1 is a diagram showing a state in which a light emitting device according to an embodiment of the present invention is mounted on an imaging device. 1 is a detailed view of an internal structure of a light emitting device according to an embodiment of the present invention. The longitudinal direction sectional view in the state where the lid of the light emitting device which is an embodiment of the present invention was opened. The longitudinal direction sectional view in the state where the lid part of the light emitting device which is an embodiment of the present invention was closed. The figure which shows the opening-and-closing method of the cover part of the light-emitting device which is embodiment of this invention. The longitudinal direction sectional view which expanded the lid part periphery of the light-emitting device which is an embodiment of the present invention The exploded view of the cover part of the light-emitting device which is embodiment of this invention. The figure which looked at the light-emitting device which is embodiment of this invention from the front. The figure which looked at the light emission part of the light-emitting device which is embodiment of this invention from back. The figure which looked at the inside of the main-body part of the light-emitting device which is embodiment of this invention from the downward direction.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is an overall view of a strobe device that is a light emitting device that can be attached to and detached from an imaging device. FIG. 1 (a) is a perspective view of the strobe device as viewed from the rear and below, and FIG. The perspective view seen, FIG.1 (c) is the perspective view seen from back and the downward direction.

  The strobe device includes a main body 100 that is a main body of the apparatus, a light emitting unit 110 that is disposed on the front side of the main body 100, a connection unit 101 that is disposed on the lower side of the main body 100, and is connected to an imaging device. Yes.

  Furthermore, on the back side of the main body 100, a power switch 102 for starting up the strobe device, a notification unit 105 using an LED or the like for reporting information such as a charging state of a main capacitor 131 described later, and a battery 170 are housed. The lid portion 150 of the storage portion 120 is included.

  In addition, a lock lever 109 is provided on the back side of the main body 100 so as to be fixed in a state of being attached to the imaging device so as not to be unintentionally detached from the imaging device.

  In addition, the light emitting unit 110 includes an optical panel 111 serving as a window for emitting light emitted from the light source, and the connection unit 101 is interlocked with the movement of the contact unit 103 and the lock lever 109 for communicating with the imaging apparatus. It has a lock claw 104 that moves up and down. Further, the strobe device has the lower cover portion 107 and the upper cover portion 108 as exteriors.

  Next, the internal structure of the strobe device will be described with reference to FIG. FIG. 2 shows a state where the upper cover part 108 is removed and the lid part 150 is opened from the state shown in FIG. In the main body 100, a storage unit 120 that stores a battery 170 that is a battery that supplies power for causing the light emitting unit 110 to emit light is disposed on the rear side of the light emitting unit 110. In addition, a main capacitor 131 that charges electric energy for causing the light emitting unit 110 to emit light using electric power supplied from the battery 170 is disposed behind the light emitting unit 110. The storage unit 120 and the main capacitor 131 are arranged so that their longitudinal directions are substantially orthogonal to the longitudinal direction of the light emitting unit 110. Note that “substantially orthogonal” includes not only the case of being completely orthogonal but also the case of being inclined within a range that can be considered to be orthogonal. The longitudinal direction of the storage unit 120 is a direction corresponding to the longitudinal direction of the battery 170. The storage unit 120 and the main capacitor 131 are arranged in the longitudinal direction of the light emitting unit 110.

  A lid 150 that opens and closes the rear end of the storage unit 120 is disposed on the rear side of the storage unit 120. By opening the lid 150, the battery 170 is connected to the storage unit 120 from the rear side of the strobe device. Insertion / extraction becomes possible.

  The lid 150 is housed in the housing part 120 with the lid cover part 151 serving as an exterior part, the claw part 151b fitted to the claw receiving part 120a formed near the opening of the housing part 120, and the lid part 150 being closed. A lid-side contact portion 152 that is electrically connected to the battery 170. The lid 150 is held by the hinge 153 so as to be rotatable with respect to the main body 100.

  A main board 130 on which a control circuit for performing light emission control of the light emitting unit 110 and the like is mounted is disposed below the storage unit 120 and the main capacitor 131. In addition, a battery terminal portion 132 electrically connected to the battery 170, a dimming sensor 116 described later, and the like are mounted on the main board 130.

  The power switch 102 as the operation member and the notification unit 105 for reporting information on the state of the strobe device are arranged on the rear side of the main capacitor 131 (on the rear side of the main capacitor and on the main capacitor side of the lid 150). . The power switch 102 is arranged so as to be aligned in the longitudinal direction of the main capacitor 131 and the main capacitor 131 and so as to be aligned in the longitudinal direction of the lid 150 and the light emitting unit 110. The position on the rear side of the main capacitor 131 where the power switch 102 and the notification unit 105 are disposed is a position that does not overlap the lid 150. For this reason, the power switch 102 is arranged at a position that can be easily operated by the photographer while attached to the imaging device without increasing the size of the flash device, while having a structure in which the battery 170 can be inserted and removed from the rear side of the flash device. Can do. In addition, the notification unit 105 can be arranged at a position that is easy for the photographer to see when attached to the imaging apparatus.

  The operation member may be other than the power switch 102, and may be one for adjusting the light emission amount of the strobe device or one for setting the operation mode of the strobe device. Further, the operation member may not be a pressing type like the power switch 102, but may be a sliding type or a dial type.

  FIG. 3 shows a state where the strobe device shown in FIGS. 1 and 2 is mounted on the imaging device 200. By arranging each part as described above, the lateral width (horizontal width) of the strobe device can be made smaller than the size of the battery 170 in the longitudinal direction. Therefore, the area of the strobe device above the imaging device 200 is reduced, and the strobe device does not hinder the operation of the switch 201 provided on the upper surface of the imaging device 200.

  In addition, when the strobe device is used by being mounted on the imaging device 200 as shown in FIG. 3, the position of the light emitting unit 110 of the strobe device is set so that the irradiation light of the strobe device is not blocked by the lens unit 220 of the imaging device 200. It is desirable to keep it away from the lens unit 220 as much as possible. This is because when the light emitted from the strobe device is blocked by the lens unit 220 of the imaging device 200, a part of the captured image becomes dark or the shadow of the lens unit 220 is reflected. However, in order to reduce the size of the strobe device, it is desirable to shorten the distance between the light emitting unit 110 and the connection unit 101 as much as possible.

  Therefore, in the present embodiment, the storage unit 120 and the main capacitor 131 are arranged such that one end (the front end of the strobe device) is positioned above the other end (the rear end of the strobe device) in the longitudinal direction. Furthermore, the light emitting unit 110 is inclined with respect to the irradiation optical axis. With such a configuration, the light emitting unit disposed on the front side of the front end of the storage unit 120 and the main capacitor 131 from the connection unit 101 disposed on the lower side of the rear side end of the storage unit 120 and the main capacitor 131. 110 can be separated efficiently. Therefore, the position of the light emitting unit 110 can be moved away from the lens unit 220 so that the irradiation light of the strobe device is not blocked by the lens unit 220 of the imaging device 200 while suppressing an increase in size of the strobe device.

  In addition, the following problems arise by tilting the longitudinal direction of the storage unit 120 and the main capacitor 131 as described above. By sliding the lid 150 from the state shown in FIG. 3B in the ω direction, the lock of the lid 150 locked in the closed state is released, as shown in FIG. The battery 170 can be inserted and removed. In the state shown in FIG. 3A, the direction in which the battery 170 is extracted from the storage unit 120 is inclined downward by inclining the longitudinal direction of the storage unit 120 with respect to the irradiation optical axis of the light emitting unit 110. Therefore, it is conceivable that when the lid 150 is opened due to the inclination of the storage unit 120 in the longitudinal direction, the stored battery 170 falls out of the storage unit 120 by its own weight from the storage unit 120.

  Therefore, by providing an elastic member 122, which will be described later, in contact with the battery 170 stored in the storage unit 120, the battery 170 can be prevented from falling out of the storage unit 120 due to friction with the elastic member 122.

  FIG. 4 is a detailed view of the internal structure of the strobe device. An elastic member 122 made of sponge, rubber, or the like is attached to the upper cover portion 108, and a part of the elastic member 122 is exposed inside the storage portion 120. ing. The elastic member 122 applies a force (frictional force) applied to the battery 170 in the direction in which the battery 170 is inserted into the storage unit 120 so that the battery 170 does not fall off from the storage unit 120 due to its own weight. It is adjusted by elastic force.

  In FIG. 4A, a buffer member 135 used to prevent the main capacitor 131 from being destroyed by impact when the strobe device is dropped is also attached to the upper cover portion 108 together with the elastic member 122. Yes. Therefore, as shown in FIG. 4B, the elastic member 122 is extended between the upper cover portion 108 of the main capacitor 131, and the function of the buffer member 135 shown in FIG. It is also possible to reduce the number of parts by using them together.

  Further, the battery terminal portion 132 provided in the vicinity of the front end in the longitudinal direction of the storage portion 120 applies a force to the battery 170 stored in the storage portion 120 in the direction of extracting the battery 170 from the storage portion 120. Has a spring structure to add. The battery terminal portion 132 is configured to always apply a force to the contact portion of the battery 170 when the lid portion 150 is closed.

  As shown in FIG. 5, the elastic member 122 has a structure in which at least a part of the elastic member 122 contacts the battery 170 at a position closer to the lid 150 than the tip of the spring structure of the battery terminal 132. That is, the elastic member 122 is in a position where a force is applied in the direction in which the battery 170 is inserted into the storage unit 120 with respect to the battery 170 stored in the storage unit 120 in a position where no force is applied by the battery terminal unit 132. Has been placed.

  In addition, the force (biasing force) applied to the battery 170 in the direction of extracting the battery 170 from the storage unit 120 by the battery terminal unit 132 is made larger than the frictional force applied to the battery 170 by the elastic member 122.

  Therefore, the battery 170 can be pushed out of the storage unit 120 in accordance with the amount of displacement of the spring structure of the battery terminal unit 132, and the user grasps the battery 170 slightly pushed out of the storage unit 120 to hold the battery 170 in the storage unit. 120 can be easily extracted. Further, even when a part of the battery 170 is pushed out of the storage unit 120 by the urging force of the battery terminal unit 132, the battery 170 can be prevented from falling off from the storage unit 120 due to the frictional force of the elastic member 122. .

  Next, the structure of the lid 150 will be described with reference to FIGS. FIG. 6 is a longitudinal sectional view of the strobe device according to the present embodiment with the lid portion 150 closed, FIG. 7 is a view showing a method for opening and closing the lid portion 150, and FIG. 8 is an enlarged view of the periphery of the lid portion 150. FIG. 9 is an exploded view of the lid 150.

  In the strobe device disclosed in Patent Document 1, the battery insertion / removal direction is lateral to the strobe body, and the rotation axis of the battery lid, which is the lid of the battery storage unit for storing the battery, is the battery insertion / removal direction. Is orthogonal to. This is because the battery urged by the battery section provided inside the battery housing portion and the contact portion provided inside the battery lid so as to be substantially parallel to the battery lid are electrically connected. .

  On the other hand, in the strobe device of the present embodiment, the insertion / extraction direction of the battery 170 is oblique with respect to the main body 100. Therefore, as in the stroboscopic device disclosed in Patent Document 1, when the rotation axis of the lid 150 is made to be orthogonal to the insertion / extraction direction of the battery 170, the rotation axis 230 is changed as shown by the dotted line in FIG. It will be inclined with respect to the main body 100. However, when the rotation shaft portion 230 is tilted with respect to the main body portion 100, the shaft pressing portion 231 provided on the upper cover portion 108 for supporting the rotation shaft portion 230 as shown by the dotted line in FIG. This extends to the rear side of the unit 100, and the strobe device becomes large.

  Further, when the rotating shaft portion 230 is tilted with respect to the main body portion 100, the lid portion 150 is closed when the opened lid portion 150 is closed in a state where the irradiation optical axis of the light emitting portion 110 is parallel to the ground. On the other hand, it is necessary to lock the lid 150 by sliding it in the ω direction while applying an upward force. Therefore, it is difficult to lock the lid 150 in a state where the irradiation optical axis of the light emitting unit 110 is parallel to the ground.

  Further, the shape of the lower cover portion 107 must be matched to the oblique rotation of the lid portion 150, and the mold release direction of the lower cover portion 107 becomes complicated.

  Therefore, the strobe device according to the present embodiment has a configuration in which the battery 170 and the lid-side contact portion 152 are satisfactorily connected without tilting the rotation shaft of the lid portion 150 with respect to the main body portion 100.

  As shown in FIG. 7A, the lid cover portion 151 has a direction substantially perpendicular to the irradiation optical axis of the light emitting portion 110 and a lateral direction of the main body portion 100 in the ω direction (the rotation of the lid portion 150). It can move in the radial direction of the moving shaft. When the lid cover portion 151 is moved in the ω direction, the claw portion 151b and the claw receiving portion 120a are disengaged from the fitted state, and the claw portion 151b and the claw receiving portion 120a are disengaged. It can be turned. Then, the lid 150 is opened around a rotation axis that is substantially perpendicular to the irradiation optical axis of the light emitting unit 110 and substantially parallel to the vertical direction (vertical direction) of the strobe device, and FIG. As shown in FIG. 5, the storage unit 120 can be exposed.

  As shown in FIG. 8, when the lid 150 is closed, the spring click portion 152 a of the lid-side contact portion 152 applies a force in the φ direction, which is a direction substantially parallel to the irradiation optical axis of the light emitting unit 110. It has become. The φ direction is a direction substantially orthogonal to the rotation axis of the lid 150.

  Further, the spring click portion 152a is provided on the lid cover portion 151 shown in FIG. 9 when the lid cover portion 151 is locked and unlocked (when moved in a direction substantially parallel to the longitudinal direction of the light emitting portion 110). A click feeling is generated by the click receiving portion 151a.

  Further, the lid-side contact portion 152 is provided with a battery contact portion 152b on a surface along the β direction which is a direction substantially orthogonal to the γ direction which is the insertion / extraction direction of the battery 170 (the longitudinal direction of the storage portion 120). Yes. As described above, the lid-side contact portion 152 and the contact portion of the battery 170 are electrically connected to each other in a state in which the lid portion 150 is closed, so that the contact is good. Note that the battery contact portion 152b and the spring click portion 152a are inclined by an angle θ that is substantially the same as the angle at which the storage portion 120 is inclined with respect to the irradiation optical axis of the light emitting portion 110. That is, the spring click part 152a and the battery contact part 152b are formed in the same member, but one is provided on a surface substantially parallel to the rotation shaft, and the other corresponds to the longitudinal direction of the battery 170 of the storage part 120. It is provided on a surface that is substantially orthogonal to the direction to be performed.

  The hinge portion 153 has a lid rotation shaft portion 153a serving as a rotation center of the lid portion 150, and the axial direction is substantially perpendicular to the irradiation optical axis of the light emitting portion 110 and is substantially parallel to the vertical direction of the strobe device. The α direction is.

  Similarly to the battery contact portion 152b of the lid side contact portion 152, the hinge portion 153 is inclined at an inclination angle θ, and the battery receiving portion 153b that receives the battery 170 stored in the storage portion 120 when the lid is closed is provided. Have.

  With the structure of the lid 150 as described above, the lid 150 can be easily opened and closed without increasing the size of the strobe device even if the insertion / extraction direction of the battery 170 is inclined with respect to the main body 100. Moreover, the battery 170 accommodated in the accommodating part 120 and the cover side contact part 152 can be favorably conducted in a state in which the lid part 150 is closed.

  Further, when the battery 170 is housed in the housing portion 120 and the lid portion 150 is closed, the battery contact portion 152b presses the battery 170 obliquely upward after contacting the contact portion of the battery 170. That is, the lid 150 is closed while rubbing the contact portion of the battery 170 at the battery contact portion 152b. By such movement, dust or the like between the contact portion of the battery 170 and the battery contact portion 152b can be removed, and contact stability between the contact portion of the battery 170 and the battery contact portion 152b can be improved.

  Next, the structure of the light emitting unit 110 will be described with reference to FIGS. 6 and 10 to 12. 10 is a view of the strobe device of the present embodiment as viewed from the front, FIG. 11 is a view of the light emitting unit 110 as viewed from the rear, and FIG. 12 is a view of the inside of the main body 100 as viewed from below.

  In a conventional light-emitting device, light emitted from a light source is guided to a light-receiving sensor through a light guide member such as an optical fiber, and when the amount of light received by the light-receiving sensor reaches a target value, light emission from the light source is stopped to accurately emit light. Some control the amount. For example, in the camera described in Japanese Patent Application Laid-Open No. 2011-159877, an optical fiber insertion hole is provided on the side surface of the Fresnel lens of the strobe panel of the strobe light emitting unit, and the strobe light is dimmed through the optical fiber inserted into the optical fiber insertion hole. It leads to the sensor. Further, when such an optical fiber insertion hole is visible from the outside, the appearance quality is impaired. Therefore, the optical fiber insertion hole is covered with an exterior cover or the like to make it difficult to see from the outside.

  However, in the structure in which the optical fiber insertion hole is provided on the side surface of the Fresnel lens of the strobe panel as described above, the lateral width of the strobe light emitting unit becomes large.

  Therefore, the strobe device of the present embodiment has a configuration capable of controlling the light emission amount with high accuracy without increasing the lateral width of the light emitting unit 110.

  As shown in FIG. 6, the light emitting unit 110 includes a discharge tube 140 that is a light source, an optical panel 111 that is an optical member disposed on the front side of the discharge tube 140, and light emitted from the discharge tube 140 in the direction of the optical panel 111. A reflective umbrella 141 is provided.

  In addition, the optical panel 111 diffuses the light emitted from the discharge tube 140 and the light guide portion 112 for guiding the light emitted from the discharge tube 140 to the light control sensor 116 that is a light receiving portion mounted on the main substrate 130. Thus, a Fresnel part 118 is provided as an injection part for injection. The control circuit 160 mounted on the main board 130 performs light emission control of the discharge tube 140 based on the light reception result of the light control sensor 116. The main board 130 is disposed along the storage unit 120 below the storage unit 120. That is, the main board 130 is provided such that the front end is positioned above the rear end in the front-rear direction of the strobe device.

  One end of a light guide member 114 such as an optical fiber is fixed to the light guide unit 112, and the other end of the light guide member 114 is fixed to the light control sensor cover 115. The dimming sensor cover 115 that is a cover member that covers the dimming sensor 116 has a role of efficiently making the light that has passed through the light guide member 114 incident on the dimming sensor 116 and outside light that does not pass through the light guide member 114 is modulated. It plays a role of blocking incident on the optical sensor 116.

  The light guide unit 112 is provided on the lower surface portion of the optical panel 111 and extends in a direction substantially parallel to the longitudinal direction of the storage unit 120. That is, the light guide unit 112 extends toward the rear side of the strobe device so as to be substantially parallel to the main substrate 130. Therefore, since the incident surface of the light guide member 114 fixed to the light guide unit 112 is also inclined with respect to the irradiation optical axis of the light emitting unit 110, the light emitted from the discharge tube 140 is reflected toward the incident surface of the light guide member 114. It can be efficiently reflected by the surface 112a.

  In addition, as shown in FIG. 12, the light guide 112 extends toward the dimming sensor 116 and connects the light guide 112 and the dimming sensor 116 with the light guide member 114 being substantially straight. The light guide efficiency of the light guide member 114 can be increased.

  Further, on the main board 130 immediately below the path through which the light guide member 114 passes, it is impossible to mount a component with a high mounting height, a component that becomes high temperature, a pattern in which noise from the light guide member 114 adversely affects, or the like. . Therefore, the layout of components mounted on the main board 130 is limited according to the path through which the light guide member 114 passes. However, the light guide member 114 is connected to the light control unit 116 by making the light guide member 114 substantially linear. Thus, the restriction on the layout on the main board 130 can be reduced.

  As mentioned above, although preferable embodiment of this invention was described, this invention is not limited to these embodiment, A various deformation | transformation and change are possible within the range of the summary.

DESCRIPTION OF SYMBOLS 100 Main body part 102 Power switch 105 Notification part 110 Light emission part 111 Optical panel 112 Light guide part 114 Light guide member 116 Light control sensor 118 Fresnel part 120 Storage part 122 Contact member 130 Main board 131 Main capacitor 132 Battery terminal part 135 Buffer Member 140 Discharge tube 150 Lid portion 151 Lid cover portion 152 Lid side contact portion 153 Hinge portion 160 Control circuit 170 Battery 200 Imaging device 201 Switch

Claims (6)

A light emitting unit;
A storage unit that stores a battery that supplies power for causing the light emitting unit to emit light;
A light emitting device having a connection portion connected to the imaging device,
The storage portion has a direction corresponding to the longitudinal direction of the battery of the storage portion that is substantially orthogonal to the longitudinal direction of the light emitting portion, and one end in the direction corresponding to the longitudinal direction of the battery is more than the other end. Provided to be located on the front side and the upper side of the light emitting device,
The light emitting unit is disposed on the front side of the light emitting device from one end of the storage unit,
The light emitting device is characterized in that the connection portion is disposed below the light emitting device with respect to the other end of the storage portion. A lid for opening and closing the other end of the storage unit;
The light emitting device according to claim 1, wherein the battery can be inserted into and removed from the storage portion by opening the lid portion.   The light emitting device according to claim 1, further comprising an elastic member that applies a force to the battery stored in the storage unit in a direction in which the battery is inserted into the storage unit. A terminal portion provided in the vicinity of one end of the storage portion and electrically connected to the battery stored in the storage portion;
The terminal portion applies a force to the battery stored in the storage portion in the direction of extracting the battery from the storage portion, and the force applied to the battery stored in the storage portion by the terminal portion is The light emitting device according to claim 3, wherein the force is greater than a force applied to the battery stored in the storage portion by the elastic member.   The elastic member is disposed at a position where a force is applied in a direction in which the battery is inserted into the storage portion with respect to the battery stored in the storage portion at a position where no force is applied by the terminal portion. The light-emitting device according to claim 4. A capacitor that charges electric energy for causing the light emitting unit to emit light using electric power supplied from the battery;
The capacitor is arranged so as to be aligned in the longitudinal direction of the storage portion and the light emitting portion,
The light emitting device according to claim 3, wherein the elastic member extends between the capacitor and an exterior.

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