JP5532913B2 - Strobe device - Google Patents

Description

  The present invention relates to a strobe device used for photography.

  Conventionally, an optical member for uniformly irradiating light emitted from a light source within a desired range is used in a strobe device used for photography. For this optical member, for example, a resin material such as polycarbonate is used.

  This type of strobe device generates heat each time the flash discharge tube serving as a light source emits light. Therefore, when the strobe device continuously emits light, part of the optical member may be deformed by the heat of the flash discharge tube. was there.

For this reason, in order to quickly cool the flash discharge tube and prevent deformation of the member, the light emitting portion (flash discharge tube and reflecting member) is moved simultaneously with the light emission of the flash discharge tube, and the optical member, the flash discharge tube, A strobe device has been proposed in which a gap is provided between the two and a light emitting unit is cooled by flowing air that is not overheated into the gap. (For example, see Patent Document 1)
Further, in the strobe device of Patent Document 1, a mechanism for improving the cooling efficiency by making the optical member openable and closable and opening the optical member after light emission has been proposed (see FIG. 10).

JP 2009-75401 A

  By the way, as a result of the inventors' diligent research, the temperature of the flash discharge tube sometimes exceeds 250 ° C. even with continuous light emission less than 10 times. In addition, since the air in the strobe device heated using the flash discharge tube as a heat source also rises to a temperature close to 100 ° C., the optical member is opened after light emission after cooling to expose the light emitting part as in Patent Document 1. The mechanism is concerned with safety issues.

  In addition, even when cooling the light emitting part by inflowing non-superheated air into the gap generated by moving the light emitting part, or when the heat in the strobe device is discharged outside the casing, it is close to 100 ° C. When exposed to temperature, the optical member may be deformed, which is insufficient to prevent deterioration of the optical performance due to the deformation of the optical member.

  Therefore, the present invention has been made in consideration of the above problems, and even when the optical member is deformed due to heat generation of the light source, the safety of the user is considered while preventing the optical performance from being deteriorated. The purpose is to provide a strobe device.

  A strobe device according to the present invention has been made to solve the above-described problems. A flash discharge tube is provided in a light-emitting unit housing provided with an opening on the subject side, and the flash discharge tube is directed toward the opening. A strobe device that includes a reflecting member that reflects the flash of light and an optical member provided in the opening, wherein a translucent protective member is provided closer to the opening than the optical member, and the optical member It is configured to be detachable with respect to an attachment / detachment hole provided in the light emitting unit casing.

  According to such a configuration, when the optical member is deformed by the heat of the light emitting unit, or when the optical member is discolored or deteriorated by ultraviolet rays emitted from the flash discharge tube, the user himself / herself attaches the optical member to the attachment / detachment hole. It becomes possible to replace with a new optical member by removing it.

  Further, in the conventional strobe device, when the optical member is deformed or deteriorated, it is necessary to disassemble and repair the strobe device. However, in the strobe device according to the present invention, the member replacement is completed in a short time. Can resume shooting immediately.

  In addition, since a light-transmitting protective member is provided at the opening of the light-emitting unit housing to cover the opening, the light-emitting unit that has become hot is not exposed, thereby further ensuring the safety of the user. it can.

  In addition, by preparing multiple optical members (filters) with different color temperature characteristics and replacing the optical members according to the shooting conditions, the user can convert the color temperature characteristics of the flash to the desired color temperature characteristics. It becomes.

  In the strobe device according to the present invention, the attachment / detachment hole is provided in the vicinity of the opening of the light emitting unit housing, and the attachment / detachment hole closes the attachment / detachment hole when the optical member is removed. Preferably, the optical member is provided with a cover that covers the attachment / detachment hole when the optical member is inserted into the attachment / detachment hole.

  According to this configuration, when the optical member is inserted into the attachment / detachment hole, the cover covers the attachment / detachment hole, and when the optical member is removed, the slide member covers the attachment / detachment hole, thereby Intrusion of water and dust can be prevented.

  Further, the strobe device according to the present invention includes a flash discharge tube in a light emitting unit housing provided with an opening on the subject side, a reflecting member that reflects flash light from the flash discharge tube toward the opening, A strobe device in which a plurality of optical members are provided in an opening, wherein the plurality of optical members are configured to be detachable with respect to an attachment / detachment hole provided in the light emitting unit housing, It is preferable to provide a lock mechanism that prevents the other optical members from being pulled out when one of the two optical members is pulled out.

  According to such a configuration, when one of the plurality of optical members is pulled out, the lock mechanism that prevents the other optical members from being pulled out is provided, so that the optical member can be erroneously inserted. Can be replaced.

  According to said structure, when an optical member deform | transforms with the heat | fever of a light emission part, or when an optical member discolors and degrades with the ultraviolet-ray which a flash discharge tube emits, a user himself replaces | exchanges an optical member easily. Since a light-transmitting protective member is provided at the opening of the light-emitting unit housing while preventing a decrease in optical performance, the light-emitting unit that has become hot is not exposed. Can be secured.

  Further, in the conventional strobe device, when the optical member is deformed or deteriorated, it is necessary to disassemble and repair the strobe device. However, in the strobe device according to the present invention, the member replacement is completed in a short time. Can immediately resume shooting, which is advantageous in terms of use.

  Also, by preparing multiple optical members (filters) with different color temperature characteristics and replacing the optical members according to the shooting conditions, the user can convert the color temperature characteristics of the flash to the desired color temperature. This is further advantageous in terms of use.

1 shows a strobe device according to a first embodiment of the present invention, wherein (a) is a perspective view seen from the front side thereof, and (b) is a cross-sectional plan view of the main part thereof. The perspective view which looked at the electronic flash device which concerns on the 2nd Embodiment of this invention from the front side 2A and 2B show two optical members constituting a strobe device according to a second embodiment of the present invention, in which FIG. 4A is a perspective view showing a state in which the two optical members are mounted, and FIG. Perspective view of the state immediately before the member is removed (A)-(d) is explanatory drawing which shows the lock | rock and unlocking state of two optical members shown in FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  As shown in FIGS. 1A and 1B, the strobe device according to the present embodiment includes an optical member 1 made of a resin such as polycarbonate, and an optical member 1 in a front opening 1H on the subject side. Is connected to a protective member 2 made of a translucent resin or the like disposed on the subject side of the optical member 1, and a flash discharge tube 3 and a reflective member 4 disposed behind the optical member 1. And a main body 6 that is disposed under the light emitting unit housing 5 and stores a circuit unit and a power source.

  In addition, an attachment / detachment hole 7 for attaching / detaching the optical member 1 is provided in the vicinity of the opening 1H of one lateral side surface portion (the right side surface portion in the front view of FIG. 1A) of the light emitting unit housing 5. When the optical member 1 is deformed or when the optical performance changes due to deterioration over time, the optical member 1 can be replaced with the spare optical member 1. At one end of the optical member 1 in the longitudinal direction (attachment / removal hole insertion direction), a cover 8 for the attachment / detachment hole that covers the attachment / detachment hole 7 when inserted into the light emitting unit housing 5 via the attachment / detachment hole 7 is provided. Yes.

  The attachment / detachment hole 7 is a vertically long opening that is slightly wider than the thickness of the optical member 1. Further, in order to prevent water and dust from entering from the attachment / detachment hole 7 when the optical member 1 is removed, a slide cover 9 as a slide member movable in the short direction of the attachment / detachment hole 7 is provided as the light emitting unit housing 5. Near the attachment / detachment hole 7 (the rear side of the attachment / detachment hole 7).

  The cover 8 provided at one end in the longitudinal direction of the optical member 1 includes a cover that covers the attachment / detachment hole 7 when the optical member 1 is inserted into the light emitting unit housing 5, and the attachment / detachment hole 7 for the optical member 1. It also serves as the handle when removing from the handle.

  The cover 8 is formed of a holding portion 8 a that fixes and holds the optical member 1 in the attachment / detachment hole 7, and an outer shell portion 8 b that is integrated with the holding portion 8 a and is positioned on the outer surface side of the light emitting unit housing 5. The outer shell portion 8b is formed in a shape in which the central axis of the cross section is shifted (offset) with respect to the holding portion 8a toward the opening portion 1H, and is configured so that the front and back of the optical member 1 cannot be erroneously inserted. . In addition to the shape of the outer shell portion 8b, the attachment / detachment hole 7 has a shape with a step in the insertion direction of the optical member 1, and by inserting the optical member 1, the front surface 8F of the outer shell portion 8b in the insertion direction. Is in contact with the stepped surface 7A of the attachment / detachment hole 7, so that the insertion amount (insertion depth) of the optical member 1 into the light emitting unit housing 5 can be limited.

  Also, the slide cover 9 has an attachment / detachment hole so as to cover the attachment / detachment hole 7 by the urging force of the urging member 10 such as a coil spring after the optical member 1 is removed from the light emitting unit housing 5 with the cover 8. 7 is configured to move to the opening 1H side in the short direction. In addition, the cover 8 side end of the slide cover 9 is provided with a protrusion 9A that enters the recess 8C formed in the cover 8 of the inserted optical member 1 and prevents the optical member 1 from moving in the removal direction. ing.

  Further, an attachment / detachment switch 11 for detecting attachment / detachment of the optical member 1 and detecting the presence / absence of the optical member 1 by the light emission control means of the strobe device is provided in the attachment / detachment hole 7. Accordingly, the light emission control means detects that the optical member 1 is inserted when the switch contact 12 provided at a specific position on the outer periphery of the holding portion 8a of the cover 8 contacts the detachable switch 11, and this is detected. On the contrary, when the switch contact 12 is not in contact with the detachable switch 11, the light emission control means detects that the optical member 1 is not inserted.

  In short, when the optical member 1 is mounted at a specified position, the detachable switch 11 and the switch contact 12 are electrically connected, and it is detected by the light emission control means that light emission is possible, and the flash device is allowed to emit light. . Further, when the optical member 1 is removed or not mounted at a specified position, the light emission control means detects that light cannot be emitted because the detachable switch 11 and the switch contact 12 do not conduct. The flash device is not allowed to emit light.

  Next, a strobe device according to the second embodiment will be described. This strobe device is required to have a high degree of optical performance by an optical member, for example, provided with an irradiation angle variable mechanism, and a plurality of optical members are used, and the translucent protective member 2 for preventing the light emitting portion from being exposed is omitted. There is a strobe device.

  As shown in FIG. 2, an optical member 1a provided on the opening 1H side of the light-emitting unit housing 5 and an optical member 1b provided on the light-emitting unit side that is also provided on the opening and also from the optical member 1a. I have.

  As in the first embodiment, the light emitting unit housing 5 is provided with attachment / detachment holes 7a and 7b for mounting the optical members 1a and 1b, respectively. Covers 8A and 8B are provided in the same manner as in FIG. 2 shows a state in which the cover 8A of one inserted optical member 1a is fitted into the light emitting unit housing 5, and the other optical member 1b is in a state immediately before being inserted into the light emitting unit housing 5. Is shown. Other configurations that are not described are the same as those in FIG.

  The strobe device according to the second embodiment further includes a lock mechanism 13 so that when either one of the optical members 1a or 1b 1a or 1b is removed, the other 1b or 1a cannot be removed.

  The same locking mechanism 13 is provided for each of the two optical members 1a and 1b, and only the configuration of the locking mechanism 13 that locks one optical member 1a side will be described.

  The locking mechanism 13 includes a locking portion 14 configured in a substantially U shape in plan view, and the optical member 1a to be engaged with the locking portion 14 to prevent the optical member 1a from moving in the removal direction. It comprises a hook-shaped locking portion 1K formed integrally and a biasing member 15 made of a coil spring or the like that biases the locking portion 14 to move toward the locking portion 1K. In addition, the latching | locking part 1K may attach to the optical member separately from the latching | locking part formed separately from the optical member 1a.

  As shown in FIGS. 4A to 4D, the lock portion 14 includes a pair of plate portions 14a and 14b that are parallel to each other, and a connecting plate portion 14c that connects these plate portions 14a and 14b at the same side end. And. Of the pair of plate portions 14a, 14b, one plate portion 14a on the side away from the attachment / detachment hole 7 is configured to be longer than the other plate portion 14b, and the proximal end side is located at the distal end portion of the longer plate portion 14a. The taper part 14T which has the taper surface 14t located in the attachment / detachment hole 7 side so that it is provided is provided. Accordingly, the release pin 1P provided on the other optical member 1b inserted through the attachment / detachment hole 7 abuts against the tapered surface 14t, thereby locking the lock portion 14 against the urging force of the urging member 15. It is configured to move in the release direction.

  Note that the locking mechanism 13 of the one optical member 1a described above is provided at the distal end in the insertion direction of the optical member 1a and at the corner of one end in the width direction (lower end in the figure) of the optical member 1a. The lock mechanism 13 of the other optical member 1b is provided at the tip of the optical member 1b in the insertion direction and at the corner of the other end in the width direction (upper end in the figure) of the optical member 1b. The locking direction is opposite to the locking direction of the locking mechanism 13 of one of the optical members 1a and reversed by 180 °.

  Locking and unlocking of the lock mechanism 13 configured as described above will be described with reference to FIGS. 3A and 3B and FIGS. 4A, 4B, 4C, and 4D.

  When both the optical members 1a and 1b are attached to the light emitting unit housing 5, as shown in FIG. 3A, the release pin 1P of the optical member 1a is a taper of the lock mechanism 13 of the optical member 1b. The release pin 1P of the optical member 1b contacts the tapered portion 14t of the lock mechanism 13 of the optical member 1a. Therefore, both lock portions 14, 14 are moved in a direction opposite to the biasing direction of the biasing members 15, 15 (specifically, the lock portion 14 of one optical member 1b is moved to the right side in the drawing. In addition, the lock portion 14 of the other optical member 1a is moved to the left in the drawing), and the engagement between the engagement portions 1K and 1K and the lock portions 14 and 14 is released. In this released state, any one of the optical members 1a or 1b can be taken out from the light emitting unit housing 5.

  When one optical member 1a is removed from the light emitting unit housing 5 for replacement, the contact between the release pin 1P of the optical member 1a and the tapered portion 14T is released. Thereby, since the locking part 14 is moved by the biasing member 15, the locking part 1K of the optical member 1b and the locking part 14 are locked and the optical member 1b is locked (from the state of FIG. 4C). Refer to the state shown in FIG.

  When a new replacement optical member 1a is mounted, the release pin 1P of the optical member 1a comes into contact with the tapered surface 14t, and the lock portion 14 is biased against the biasing force of the biasing member 15. It is moved in a direction opposite to the direction (right side in the figure), the locking of the locking portion 1K and the locking portion 14 of the optical member 1b is released, and the optical member 1b can be removed (FIG. 4C). reference).

  When the other optical member 1b is removed from the light emitting unit housing 5 for replacement, the contact between the release pin 1P of the optical member 1b and the tapered portion 14T is released. As a result, the locking portion 14 is moved by the urging member 15, so that the locking portion 1K of the optical member 1a and the locking portion 14 are locked to lock the optical member 1a (see FIG. 3B and FIG. (Refer to the state from 4 (a) to FIG. 4 (b)).

  When a new replacement optical member 1b is mounted, the release pin 1P of the optical member 1b comes into contact with the tapered surface 14t, and the lock portion 14 is biased against the biasing force of the biasing member 15. It is moved in the direction opposite to the direction (left side in the figure), the engagement between the locking portion 1K and the locking portion 14 of the optical member 1a is released, and the optical member 1a can be removed (FIG. 4A). reference).

  With the above configuration, when the optical members 1a and 1b are deformed by the heat of the light emitting section, or when the optical members 1a and 1b are discolored or deteriorated by the ultraviolet rays emitted from the flash discharge tube 3, the user himself can easily The optical member can be exchanged, and since the lock mechanisms 13 and 13 are independent of each other, erroneous insertion of the exchanged optical member can be prevented.

  In addition, the lock mechanisms 13 and 13 are provided at separate positions in the light emitting unit housing 5 at positions that do not interfere with the flash, not in one place in the figure, but at the upper and lower positions. It is difficult to prevent the lock mechanisms 13 and 13 from being deformed.

  Further, since the optical members 1a and 1b have different optical characteristics, the two lock mechanisms 13 and 13 do not need to be at the same position, and can be further prevented from being erroneously inserted by being provided at different places.

  In addition, this invention is not limited to the said embodiment, Of course, a various change can be added in the range which does not deviate from the summary of this invention.

  In the above-described embodiment, the two optical members 1a and 1b are configured to be replaceable. However, three or more optical members may be configured to be replaced. The protection member may also be configured to be exchangeable.

  Moreover, in the said embodiment, although the attachment / detachment hole was provided in the side surface of the light emission part housing | casing, an attachment / detachment hole is provided in the upper surface side or lower surface side of the light emission part housing | casing so that an optical member can be replaced | exchanged from an up-down direction. It may be provided.

  The strobe device according to the present invention allows the user himself / herself to attach the optical member to the attachment / detachment hole when the optical member is deformed by heat of the light emitting portion or when the optical member is discolored or deteriorated by ultraviolet rays emitted from the flash discharge tube. By being configured so that it can be replaced with a new optical member by pulling it out, it has the effect that the safety of the user can be taken into account while preventing the deterioration of the optical performance, and from small to large It is useful in various strobe devices.

1, 1a, 1b Optical member 1K Locking portion 1H Opening portion 1P Release pin 2 Protective member 3 Flash discharge tube 4 Reflecting member 5 Light emitting portion housing 6 Main body portion 7, 7a, 7b Removable hole 7A Stepped surface 8, 8A, 8B Cover 8a Holding portion 8b Outer shell portion 8C Recessed portion 8F Front surface in the insertion direction 9 Slide cover 9A Protruding portion 10 Energizing member 11 Detachable switch 12 Switch contact 13 Lock mechanism 14 Lock portion 14a, 14b Plate portion 14c Connecting plate portion 14T Taper portion 14t Taper Surface 15 Biasing member

Claims (2)

In the light emitting unit housing provided with an opening on the subject side,
A flash discharge tube, a reflecting member that reflects flash light from the flash discharge tube toward the opening, and a strobe device provided with a plurality of optical members in the opening;
The plurality of optical members are configured to be attachable / detachable with respect to an attachment / detachment hole provided in the light emitting unit housing, and when one of the plurality of optical members is removed , the other optical members are removed. A strobe device provided with a lock mechanism for preventing the removal.
In the light emitting unit housing provided with an opening on the subject side,
A strobe device comprising: a flash discharge tube; a reflection member that reflects flash light from the flash discharge tube toward the opening; and an optical member provided in the opening;
A transparent protective member is provided on the opening side of the optical member, and the optical member is configured to be detachable with respect to an attachment / detachment hole provided in the light emitting unit housing,
The attachment / detachment hole is provided in the vicinity of the opening of the light emitting unit housing, and the attachment / detachment hole is provided with a slide member for covering the attachment / detachment hole when the optical member is removed. The strobe device according to claim 1, further comprising a cover that covers the attachment / detachment hole when the optical member is inserted into the attachment / detachment hole.

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