JP5087130B2 - Shooting notification device - Google Patents

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photographing notification device, and in particular, a photographing notification device that regulates photographing operations such as voyeurism and strobe light emission by a photographing device by transmitting a directional light beam from the photographing device and receiving the light beam by the photographing notification device. About.

  In order to regulate the shooting of a predetermined area in an exhibition hall such as a sightseeing spot or an art museum, a transmitter transmits a control signal transmitted by radio waves with shooting restrictions to the vicinity of the subject to be shot restricted, while cameras and cameras An imaging apparatus such as a mobile phone having a function is provided with a reception unit that receives the control signal, and an imaging regulation system that regulates imaging by the imaging apparatus during reception of the control signal is known (Patent Document 1). And Patent Document 2).

JP-A-7-13225 JP 2004-153324 A

  However, the conventional shooting control systems disclosed in Patent Documents 1 and 2 perform control of shooting such as shooting prohibition and strobe light emission by transmitting a control signal using radio waves to an area near the shooting control subject. . Therefore, if there is a photographing device in the area, there is a problem that even if the photographing device is directed in a direction unrelated to the photographing restricted subject, the photographing device is subject to photographing restriction because it receives a control signal. It was.

  Incidentally, Patent Document 1 describes that light may be emitted instead of radio waves transmitted by a transmitter. However, if a light emitting means is provided in the transmitter, an optical signal receiving device is provided on the photographing apparatus side. In addition, there is a problem that it is necessary to mount an optical signal detection device and increase the size and cost of the photographing device.

  The present invention has been made in view of such circumstances, and it is possible to reliably restrict shooting of only a shooting restricted subject with a simple configuration without mounting a signal receiving device or a signal detecting device on the shooting device side. An object of the present invention is to provide a photographing notification device that can perform this.

Photographing notification apparatus according to claim 1, imaging device is only received by the irradiation range of the visible light irradiated by modulating predetermined data to visible light having a directivity, reading the predetermined data from the visible light Thus, the fact that the subject is photographed is recognized, and the fact that the subject is photographed is notified by a notification means that emits light, vibration, and sound .

According to the imaging notification device of the first aspect of the present invention, it is possible to detect that the subject is photographed by receiving visible light transmitted from the imaging device and reading predetermined data from the visible light. Notification is made by a notification means that emits the above. Thereby, it is possible to notify the photographer and a third party in the vicinity of photographing the subject. Also, if the subject is photographed regulation subject, the photographer can recognize more advance to light, vibration and sound can be abandoning the imaging and / or strobe flash photography.

In order to achieve the object, the imaging notification device according to claim 2 is arranged around the subject so as to receive visible light having directivity from the imaging area, and the imaging device converts the visible light having directivity into the visible light. means for receiving only the irradiation range of a predetermined visible light irradiated data modulation to the, reading the predetermined data from the visible light beam, means for recognizing that a subject is photographed, the photographing enable / disable and / Or a notifying means for notifying that the strobe emission is possible or not by light / sound.

According to the imaging notification device of the second aspect, when the directional visible light transmitted from the imaging device is received, predetermined data is read out from the visible light, and the notification means enables / disables shooting of the subject. Or, it is notified by light, vibration, or sound that strobe light emission is possible. As a result, the photographer and the third party can recognize that the subject is a photographing restricted subject. Similarly, in order to achieve the above object, the apparatus according to claim 3 receives light only in an irradiation range of visible light that is emitted by modulating predetermined data to visible light having directivity by an imaging device, It recognizes that the subject is captured by reading the predetermined data from the visible light, wherein the subject is disturbed by interference means to be satisfactorily captured. In the apparatus according to claim 4, it is preferable that the disturbing unit interferes with good photographing of the subject by emitting disturbing light toward a glass disposed in front of the subject. Further, in the apparatus according to claim 5, it is preferable that the obstructing unit obstructs favorable photographing of the subject by making a liquid crystal plate disposed in front of the subject non-transparent.

  As another embodiment 1, the imaging apparatus includes an optical transmission unit that modulates and transmits predetermined data to a light beam having directivity, and the data or imaging relating to imaging selectively with respect to a specific light receiving area. It is preferable that a control unit for transmitting the data unique to the apparatus is provided.

  According to the first embodiment, the optical transmitting unit that modulates and transmits predetermined data to a light beam having directivity is provided, and the control unit performs light shooting when performing a shooting operation, that is, before or just before a predetermined time of the shooting operation. A light beam is transmitted from the transmission means to a specific light receiving area. Since the light beam has directivity, a notification signal including predetermined data for notifying that the photographing is performed only when the photographing device is directed to the photographing restricted subject in the light receiving area is transmitted from the photographing device to the photographing restricted subject side. If a restricting means for restricting photographing by receiving the notification signal is provided on the photographing restricted subject side, photographing of the photographing restricted subject can be reliably restricted. In addition, by transmitting data specific to the photographing apparatus to the photographing restricted subject side, photographing by the photographing apparatus can be permitted or prohibited. Therefore, according to the photographing apparatus of the first embodiment, it is possible to reliably restrict the photographing of the photographing restricted subject with a simple configuration using only the light transmitting unit without mounting a signal receiving device or a signal detecting device on the photographing device side. it can.

  Note that visible light can be used as the light beam. Visible light means an electromagnetic wave having a wavelength that can be seen by human eyes. According to the definition of JIS Z8120, the wavelength of an electromagnetic wave corresponding to visible light is approximately 360 nm to 400 nm on the short wavelength side and 760 nm to 760 nm on the long wavelength side. 830 nm.

  According to another embodiment 2, the voyeurism prevention system includes an optical transmission unit that modulates and transmits predetermined data to a light beam having directivity, and the light transmission unit transmits the light beam when performing a photographing operation. An imaging device having control means for transmitting the light, and receiving the light beam from the imaging device and reading out the predetermined data from the light beam to emit light, vibration, sound, etc. It is preferable to include a photographing notification device that notifies by a notification means.

  In the voyeurism prevention system according to the second embodiment, the control unit transmits the light beam from the light transmission unit before or just before the predetermined time of the shooting operation when shooting with the shooting device facing the subject. Since the light beam has directivity, it is transmitted to a photographing notification device installed in the vicinity of the photographing prohibited subject. When the imaging notification device receives the light beam, it reads out predetermined data from the light beam and notifies the imaging means that emits light, vibration, sound, etc. that the subject for which photography is prohibited is captured. As a result, it is possible to prevent sneak shots of subjects whose photography is prohibited.

  As another embodiment 3, in the above embodiment 1, it is preferable that the photographing apparatus transmits a light beam by a half-press operation of a release button.

  In the photographing apparatus according to the third embodiment, the control unit transmits the light beam when the release button is pressed halfway. As a result, the photographer can transmit the light beam from the photographing apparatus through a series of photographing operations without performing a special transmission operation.

  As another embodiment 4, in the voyeurism prevention system, it is preferable that the photographing apparatus in the embodiment 2 transmits a light beam by a half-press operation of a release button.

  In the voyeurism prevention system according to the fourth embodiment, when the release button is half-pressed, the control means transmits a light beam and the photographing notification device receives the light. As a result, the photographer can transmit the light beam from the photographing apparatus through a series of photographing operations without performing a special transmission operation.

  Further, as another embodiment 5, the photographing apparatus includes a light transmitting unit that modulates and transmits predetermined data to a light beam having directivity, and performs light transmission toward a subject when a release operation is performed. It is preferable that a control unit that performs a photographing operation after a predetermined time is provided.

  When the release operation is performed, the image capturing apparatus according to the fifth embodiment first notifies that the image is transmitted by transmitting light toward the subject, and performs the image capturing operation after a predetermined time. By transmitting a signal indicating a time lag from the release to the photographing to the photographing disturbing means, the photographing disturbing means performs an operation of disturbing the photographing in accordance with the time lag.

  As another embodiment 6, the voyeurism prevention system according to the embodiment 2 is arranged around the subject so as to receive a light beam having directivity from the photographing area, and receives the light beam transmitted from the photographing device. Accordingly, it is preferable to include an obstructing unit that obstructs good photographing of the subject.

  In the voyeurism prevention system according to the sixth embodiment, when a light beam transmitted from the photographing apparatus is received, good photographing of the subject is obstructed by a disturbing unit that takes into account a time lag from when the light is received until photographing. This can reliably prevent infringement of portrait rights and illegal voyeurism.

  As another embodiment 7, the imaging apparatus includes an optical transmission unit that modulates and transmits predetermined data to a light beam having directivity, and the light beam from the optical transmission unit is transmitted through the imaging lens. It is preferable.

  Since the imaging device according to the seventh embodiment transmits the light beam from the light transmission unit via the imaging lens, it is possible to prevent unauthorized photographing by covering the light projecting unit of the light transmission unit.

  As another embodiment 8, the imaging apparatus includes an optical transmission unit that modulates and transmits predetermined data to a light beam having directivity, and a control unit that transmits the light beam when performing an imaging operation. The light transmitting means is preferably a tally lamp that emits a light beam having a wavelength in the red region.

  Since the photographing apparatus according to the eighth embodiment also serves as a tally lamp as a light projecting unit of the light transmitting unit, it can transmit a light beam without increasing the number of components.

  As another embodiment 9, the voyeurism prevention system according to the embodiment 2 is preferably configured such that the imaging device and the imaging notification device are capable of bidirectional transmission / reception.

  According to the ninth embodiment, the photographing apparatus further includes receiving means, and after selectively transmitting data related to photographing to a specific light receiving area, photographing that the photographing notification apparatus in the light receiving area has received the data. The information is transmitted by the communication means included in the notification device, and the photographing device receives the data by the data reception means, and displays on the display unit of the photographing device that the photographing notification device is in the photographing region. In this way, even when a photographer accidentally enters a photographing area without intention of the photographer, this can be known before photographing.

  As another embodiment 10, in the voyeurism prevention system, a memory member in which a shooting restriction release code is recorded is detachably attached to a predetermined area of the storage unit, and the shooting restriction release code is read at the time of shooting. It is preferable that the image capturing apparatus includes a transmission device and a photographing notification device that notifies that the photographing restriction by the photographing device is canceled when the photographing restriction cancellation code transmitted from the photographing device is received.

  In the voyeurism prevention system according to the tenth embodiment, a paid subject can be photographed by purchasing a memory member with a photographing release code.

  According to the photographing notification device according to the present invention, it is possible to reliably restrict photographing of only a photographing restricted subject with a simple configuration without mounting a signal receiving device or a signal detecting device on the photographing device side.

Overall structure diagram of a voyeurism prevention system to which a digital camera and a light receiving unit of an embodiment are applied Overall perspective view of the light receiving unit shown in FIG. Block diagram showing the structure of the light receiving unit shown in FIG. Explanatory drawing showing an example of a light receiving unit and a display panel arranged near the subject Explanatory drawing which showed the photography control mark etc. which are displayed on the display panel of FIG. Flow chart showing an example of control on the digital camera side of the voyeurism prevention system Flow chart showing an example of control on the light receiving unit side of the voyeurism prevention system Explanatory drawing showing an example of a subject shooting disturbing device Flow chart showing an example of control on the digital camera side of the voyeurism prevention system Flow chart showing an example of control on the light receiving unit side of the voyeurism prevention system Explanatory drawing showing an example of a subject shooting disturbing device Flow chart showing an example of control on the digital camera side of the voyeurism prevention system Flow chart showing an example of control on the light receiving unit side of the voyeurism prevention system Schematic structure with built-in LED in the camera Schematic structure with built-in LED in the camera Flow chart showing an example of control on the digital camera side of the voyeurism prevention system 16 is a flowchart showing another embodiment of the flowchart shown in FIG.

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of a photographing notification device according to the present invention will be described with reference to the accompanying drawings. In the following description, an example in which the photographing apparatus of the present invention is applied to a digital camera, which is an electronic camera, will be described. However, the present invention is not limited to this and is applied to a camera-equipped mobile phone having a camera function. Applicable.

  FIG. 1 is an overall structural diagram of a voyeurism prevention system 14 to which a digital camera 10 and a light receiving unit (photographing notification device) 12 according to an embodiment are applied.

  A CCD 18 is provided at the imaging position of the taking lens 16 of the digital camera 10. The subject image formed on the imaging surface of the CCD 18 is photoelectrically converted by the CCD 18, and then its electrical signal is output to the imaging unit 20. The imaging unit 20 converts the electrical signal into a video signal and outputs the video signal to the monitor 22 and records it as a JPEG file in the recording circuit unit 24 such as a built-in RAM or an external memory card.

Reference numeral 26 denotes a control circuit unit (control unit) that performs overall control of the entire digital camera 10. The control circuit unit 26 controls the imaging unit 20 and the CCD 18 based on the release signal from the release button 28, and also generates a signal generation circuit based on a half-press operation of the release button 28 performed when autofocus is performed immediately before the release. The unit 30 is controlled so that visible light (a signal transmitted by modulating predetermined data into a light beam having directivity) modulated by a modulation circuit 34 from an LED (light transmission means) 32 that is a tally lamp is transmitted. Send. Since the LED 32 is attached in the vicinity of the photographing lens 16, when the photographing lens 16 is directed toward the subject 36, visible and directional visible light from the LED 32 is transmitted toward the subject (person) 36 .

  FIG. 2 is an overall view of the light receiving unit 12, and FIG. 3 is a block diagram showing the overall configuration of the light receiving unit 12.

  As shown in FIG. 2, the light receiving unit 12 is configured by attaching a strap 40 to a spherical main body 38. In addition, a light transmitting window 42 for receiving visible light from the digital camera 10 is attached to the main body 38, and an alarm sound emitting portion 44 is formed.

  As shown in FIG. 3, the main body 38 incorporates a photodiode 46. The photodiode 46 is a light receiving element that receives directional visible light transmitted from the digital camera 10 shown in FIG. Therefore, the photodiode 46 receives visible light from the digital camera 10 by directing the transparent window 42 toward the digital camera 10.

  The visible light received by the photodiode 46 is demodulated by the AM demodulator 48 and the control circuit unit 50 detects that the visible light has been received. When visible light is detected by the control circuit unit 50, the control circuit unit 50 controls the speaker circuit unit 52 to radiate an alarm sound from the speaker 54 to the outside of the light receiving unit 12 through the radiating unit 44.

  Next, the operation of the voyeurism prevention system 14 configured as described above will be described.

  When the release button 28 of the digital camera 10 is half-pressed by the photographer, the control circuit unit 26 controls the signal generation circuit unit 30 to emit red light as a tally lamp from the LED 32 toward the subject 36.

  On the other hand, the subject 36 carries the light receiving unit 12 and can receive visible light from the digital camera 12, but since the visible light from the LED 32 of the digital camera 12 is transmitted in front of the camera, the digital camera The light receiving unit 12 receives visible light from the digital camera 10 only when 12 is directed toward the subject 36. Then, the light receiving unit 12 generates an alarm sound from the speaker 54 and notifies the subject 36 and surrounding third parties that the alarm sound is just before shooting or that shooting has been performed.

  Therefore, according to the voyeurism prevention system 14, it is possible to notify the specific subject 36 whether or not photographing has been performed by the digital camera 10. In addition, since the photographer can recognize that the subject 36 is the photographing restricted subject 36 immediately before photographing with an alarm sound, photographing can be stopped. The notification method may use not only sound but also light and vibration. In addition, by transmitting the data specific to the digital camera to the light receiving unit 12, it is possible to notify that the digital camera 10 is permitted or prohibited by the generation of an alarm sound. Furthermore, the light receiving unit 12 is not limited to the form shown in FIG. 2 carried by the person who is the subject, and may be a form fixed around the subject when the subject is an object.

  In the voyeurism prevention system 14 shown in FIGS. 1 to 3, the light receiving unit 12 receives the visible light from the digital camera 10 and is notified by an alarm sound. Prohibiting photographing itself, prohibiting strobe photographing, and permitting normal photographing may be notified using a display means.

  FIG. 4 shows a case in which a light receiving unit 12 is installed in the vicinity of a subject (a painting displayed in a museum) 60 and when the light receiving unit 12 receives visible light from the digital camera 10, Based on the restriction information (whether shooting is possible, whether flash photography is possible), the information is displayed on the display panel 62. When the subject 60 is a subject for which photography is prohibited, the display content is “Shooting prohibited” in character notation as shown in FIG. 5A, or when flash photography is prohibited, as shown in FIG. As shown in B), “strobe prohibited” can be displayed. In addition, as shown in FIGS. 5C and 5D, it may be displayed that photography is prohibited by a symbol or mark.

  On the other hand, when the visible light received by the photodiode 46 (see FIG. 3) of the light receiving unit 12 is demodulated by the AM demodulator 48 and detected by the control circuit unit 50, predetermined characters, symbols and marks are displayed on the display panel 62. Is displayed on the display panel 62.

  The operation of the voyeurism prevention system configured as described above will be described with reference to the flowcharts shown in FIGS.

  First, control on the digital camera 10 side will be described. As shown in FIG. 6, when the release button 28 of the digital camera 10 is half-pressed (S1) by the photographer (step (S) 100), the control circuit unit 26 controls the signal generation circuit unit 30 to control the tally lamp from the LED 32. The red light (visible light) is emitted toward the subject 36 (S110). At the same time, the control circuit unit 26 controls the AE circuit unit (not shown) to perform photometry, sets an appropriate shutter speed (S120), and controls the AF circuit unit (not shown) to execute autofocus. (S130).

  Thereafter, when the release button 28 is fully pressed (S2) (S140), photographing is performed (S150), and the subject is recorded as data in the recording circuit unit 24 (S160). If the half-press operation (S1) is released without the release button 28 being fully pressed (S2) (S170), the process returns to S100. The above is the control on the digital camera 10 side.

  Next, control on the light receiving unit 12 side will be described with reference to FIG. When the directional red visible light transmitted by the half-press operation of the release button 28 of the digital camera 10 is received by the photodiode 46 (S200), the control circuit unit 50 causes the subject 60 to be in a state immediately before photographing with the digital camera 10. Recognizing that there is, preset information (whether shooting is possible, whether flash photography is possible) is read from a storage unit (not shown), and this information is displayed on the display panel 62 (S210). That is, when the subject 60 is a subject for which photography is prohibited, “shooting prohibited” is displayed as shown in FIG. 5A (S220). If the flash photography is prohibited, “strobe prohibited” is displayed as shown in FIG. 5B (S230). If normal shooting is possible, the display panel 62 displays that shooting is OK.

  In other words, the embodiment includes the LED 32 that modulates visible light and transmits the visible light in the vicinity of the photographing lens 17 of the digital camera 10, and the digital camera 10 is configured to transmit visible light toward the subject 60. Has been. The LED 32 emits light when the release button 28 is pressed halfway.

  On the other hand, the light receiving unit 12 is disposed in the vicinity of the subject 60 and can receive visible light from the digital camera 10, but the visible light from the LED 32 on the digital camera 10 side is transmitted to the front of the digital camera 10. Therefore, the light receiving unit 12 receives a signal indicating that the digital camera 10 is just before shooting only when the digital camera 10 is pointed at the subject 60.

  When this signal is received by the light receiving unit 12, it is displayed on the display panel 62 of the light receiving unit 12 whether or not photographing is possible, whether or not strobe light emission is possible, and whether or not normal photographing is OK. For example, in the case of a museum, whether or not photography is possible depending on whether or not the subject (painting) has a portrait right, and whether or not there is a risk of deterioration due to strong light, or whether or not strobe lighting is possible Is displayed.

  The notification method may use not only sound but also light and vibration. In the case of notification by light, for example, it is easier for the photographer to understand by emitting light of ○ (normal photographing is possible), × (prohibition of photographing), and Δ (prohibiting strobe light emission) or characters.

  FIG. 8 is an explanatory view showing another embodiment of the voyeurism prevention system.

  The voyeurism prevention system shown in the figure includes an LED 32 that modulates visible light and transmits it in a visible manner on the outer peripheral surface of the taking lens barrel 11 of the digital camera 10. When a release operation is performed by the release button 28, first, The control circuit unit 26 notifies the subject 60 that the visible light transmission is performed and performs the photographing operation after a predetermined time.

  On the other hand, the light receiving unit 12 that receives visible light is attached to a glass case 64 that covers the subject 60 so as to receive visible light from the imaging area. When the light receiving unit 12 receives visible light from the digital camera 10 and detects unauthorized photographing, the light receiving unit 12 irradiates the front surface of the glass case 64 with a light beam from a light emitter (interfering means) 66, and reflects the reflected light. A disturbing operation is performed so that the subject 60 cannot be photographed satisfactorily.

  The operation of the voyeurism prevention system configured as described above will be described with reference to the flowcharts shown in FIGS.

  First, control on the digital camera 10 side will be described. When the release button 28 of the digital camera 10 is fully pressed by the photographer as shown in FIG. 9 (S300), the control circuit unit 26 controls the signal generation circuit unit 30 to emit red light as a tally lamp from the LED 32 to the subject 60. (S110). At the same time, the control circuit unit 26 starts a timer (S320), controls an AE circuit unit (not shown), performs photometry, sets an appropriate shutter speed (S330), and AF (not shown) The circuit unit is controlled to execute autofocus (S340).

  Thereafter, when the timer counts the set time (T1) (S350), photographing is performed (S360), and the subject is recorded as data in the recording circuit unit 24 (S370). The above is the control on the digital camera 10 side.

  Next, control on the light receiving unit 12 side will be described with reference to FIG. When the photodiode 46 receives directional visible light transmitted by the full pressing operation of the release button 28 of the digital camera 10 (S400), the control circuit unit 50 starts a timer (S410), and thereafter the timer When the set time (T1) is counted, a light beam (interfering light) is emitted from the light emitter 66 to the front surface of the glass case 64. At this time, since shooting is performed by the digital camera 10, the digital camera 10 cannot capture the subject 60 satisfactorily due to the interference light reflected from the front surface of the glass case 64. Thereby, it is possible to prevent voyeurism of the subject 60.

  FIG. 11 is an explanatory view showing another embodiment of the voyeurism prevention system.

  The voyeurism prevention system shown in the figure includes an LED 32 that modulates visible light and transmits it in a visible manner in the vicinity of the taking lens 16 of the digital camera 10. When a release operation is performed by the release button 28, first, the subject 60 Transmitting visible light toward the camera and informing that shooting is to be performed. At this time, a signal encoding the time lag inherent to the digital camera 10, that is, the time from signal transmission to photographing, is simultaneously transmitted. After that, the digital camera 10 includes a control circuit unit 26 that executes a photographing operation.

  On the other hand, the light receiving unit 12 that receives visible light is disposed around the subject 60 so as to receive visible light from the photographing area, receives visible light from the digital camera 10, and demodulates the encoded time lag signal. Then, the control circuit unit 70 sets this in the timer 72. When the countdown of the predetermined time by the timer is completed, the control circuit unit 70 controls the liquid crystal drive circuit unit 74 to make the liquid crystal plate (disturbing means) 76 disposed in front of the subject 60 in an opaque state, thereby photographing the subject 60. Can not be done. The above is the control on the light receiving unit 12 side.

  The operation of the voyeurism prevention system configured as described above will be described with reference to the flowcharts shown in FIGS.

  First, control on the digital camera 10 side will be described. When the release button 28 of the digital camera 10 is fully pressed by the photographer as shown in FIG. 12 (S500), the control circuit unit 26 controls the signal generation circuit unit 30 to emit red light as a tally lamp from the LED 32 to the subject 60. (S510). Then, the control circuit unit 26 transmits a signal indicating a time lag superimposed on this signal (S520), sets a timer (S530), and starts time counting (S540). Thereafter, countdown is performed until the timer counts the set time (t1) (S550, S560). When the timer counts the set time (t1), shooting is performed (S570), and the subject image is stored in the recording circuit unit 24. It is recorded as data (S580). The above is the control on the digital camera 10 side.

  Next, control on the light receiving unit 12 side will be described with reference to FIG. When the directional visible light transmitted by the full press operation of the release button 28 of the digital camera 10 is received by the photodiode 46 (S600), the control circuit unit 50 sets a timer (S610) and counts the time. Start (S620). Thereafter, the countdown is performed until the timer counts the set time (t1) (S630, S640), and when the timer counts the set time (t1), the liquid crystal plate 76 disposed in front of the subject 60 is in an opaque state. In step S650, the subject 60 cannot be photographed. At this time, since shooting is performed in the digital camera 10, the digital camera 10 cannot capture the subject 60 with the liquid crystal plate 76 in the non-transparent state. Thereby, it is possible to prevent voyeurism of the subject 60.

  After a predetermined time has elapsed (S660), the control circuit unit 50 returns the liquid crystal plate 76 to the transmissive state. The above is the control on the light receiving unit 12 side.

  FIGS. 14 and 15 are structural views of the main part of a camera in which an LED 32 that emits visible light is arranged in the optical system of the photographing lens 16.

  In the camera shown in FIG. 14, a semi-transmissive mirror 80 that divides the light beam that has passed through the photographing lens 16 is disposed in the optical path between the CCD 18 and the rear of the photographing lens 16. The semi-transmissive mirror 80 is arranged so as to reflect the visible light from the LED 32 incorporated in the camera and transmit the reflected light through the photographing lens 16 in the direction in which the photographing lens 16 is directed.

  In the camera shown in FIG. 15, a pair of LEDs 32 and 32 are disposed on both sides of the CCD 18 behind the taking lens 16. Therefore, the visible light from the LEDs 32 and 32 is transmitted through the photographing lens 16 in the direction in which the photographing lens 16 is directed.

  As described above, the camera shown in FIGS. 14 and 15 is configured to transmit the visible light from the LED 32 incorporated in the camera through the photographing lens 16, so that it is attempted to shoot while blocking the visible light transmission. Then, since the photographing light is disturbed, unauthorized photographing can be prevented more reliably.

  FIG. 16 is a flowchart illustrating another embodiment of the voyeurism prevention system.

  The camera described in this example also includes an LED that modulates visible light and transmits it in a visible manner around the photographing lens. When the camera is turned on (S700), the code of a predetermined part of the purchased memory card is read (S710). When it is detected that a release code (imaging restriction release code) is written in this part (S720), a visible light transmission flag 0 is set (S730). If no release code is recorded, the visible light transmission flag 1 is set (S740).

  When the release operation is performed (S750), first, the flag is confirmed (S760). If the flag is 0, visible light transmission is performed toward the subject (S770) to notify that the image is to be taken. Thereafter, photometry is executed (S780), and autofocus is executed (S790), and then a photographing operation is performed (S800). In the case of flag 1, visible light transmission is not performed, and dummy light emission (continuous light emission) is performed.

  On the other hand, the light receiving unit that receives visible light is arranged around the subject so as to receive visible light from the shooting area, receives visible light from the camera, demodulates the visible light signal, and includes a release code. If so, the non-transparent liquid crystal plate arranged in front of the subject is set to the transmissive state, and photographing of the subject is permitted. In the case of dummy light emission, since this operation is not performed, the liquid crystal plate remains in a transmissive state and photography is impossible. In this way, only when the card on which the release code is recorded is inserted, the subject is photographed, and the charge for the charged content can be collected by the card sales fee. In art museums and the like, fee-based content can be charged individually by setting release codes in detail, such as for each individual subject, each work group, and each author.

  Further, as another embodiment, as shown in the flowchart of FIG. 17, two types of codes (photographing prohibition, strobe light emission prohibition, etc.) are added to the release code (S900), and it is visible when it is detected that the photography prohibition code is described. The light transmission flag 1 is set (S910), and when it is detected that the strobe emission prohibition code is written, the visible light transmission flag 2 is set (S920). If no release code is recorded, the visible light transmission flag is set. 0 is set (S930).

  When the release operation is performed (S940), first, the flag is confirmed (S950), and in the case of flag 1 or 2, visible light transmission of a frequency corresponding to the flag 1 is performed toward the subject (S960). Visible light transmission of a frequency corresponding to the flag 2 is performed (S970), and the light receiving unit is notified of the photographing. Thereafter, photometry is performed (S980), and after performing autofocus, a photographing operation is performed. In the case of flag 0, visible light transmission at a frequency corresponding to flag 0 is performed (S990).

  On the other hand, the light receiving unit that receives visible light is arranged around the subject so as to receive visible light from the shooting area, receives visible light from the camera, demodulates the visible light signal, and corresponds to flag 1 If the photographing signal is included, the liquid crystal plate (interfering means) arranged in front of the subject is made opaque so that the subject cannot be photographed (see FIG. 11). If a shooting signal corresponding to the flag 2 is included, a character display or a mark indicating strobe light emission prohibition is displayed on a display panel arranged in the vicinity of the subject so that the photographer is a subject for which strobe light emission is prohibited. Inform. In addition, when the shooting signal corresponding to the flag 3 is included, the shooting restriction operation is not performed. In this way, if a plurality of flags are set according to the photographing restriction conditions, various kinds of photographing restrictions can be executed. The modulator 34 also includes modulating the digital code to indicate that the subject is a photographing-prohibited subject and that strobe light emission is prohibited.

  Further, by configuring the digital camera 10 and the receiving unit 12 to be capable of bidirectional transmission / reception, there are the following advantages.

  That is, the receiving unit 12 is further provided with receiving means in the digital camera 10, and after the data relating to photographing is selectively transmitted to a specific light receiving area, the receiving unit 12 in the light receiving area has received the data. The data is transmitted by the communication means, and the digital camera 10 receives the data by the data receiving means, and displays on the monitor 22 of the digital camera 10 that the receiving unit 12 is in the photographing area. In this way, even if the photographer unintentionally happens to have a person with the receiving unit 12 in the photographing area, this can be known before photographing.

  Further, the digital camera 10 includes other data receiving means, and after transmitting specific data such as a communication password of the digital camera 10 selectively to a specific light receiving area, the receiving unit 12 in the area receives the data. Triggered by the reception of, two-way communication is started by other data receiving means (such as radio waves). At this time, communication can be performed by identifying the other party by the communication password.

  Further, it is possible to detect that the digital camera 10 has entered the specific area and / or the digital camera 10 has been directed to the subject by using means for selectively transmitting to the specific area. If it is performed, whether the communication is a non-directional communication method or a bidirectional communication means, the communication content is “whether or not the digital camera 10 has previously input a photographing permission code?” In addition, information such as “whether or not the shooting mode of the digital camera 10 is set to strobe shooting” and further “focal length information of the lens of the digital camera 10” is obtained by communication means, and as a result, It is also possible to perform simple control.

  Whether or not the digital camera 10 has obtained a photographing permission code in advance. Prohibit or allow photography by

  Whether the digital camera 10 has a built-in strobe. Or is the digital camera 10 shooting mode set to flash photography? Prohibit or allow photography depending on the situation.

  Based on the focal length information of the lens of the digital camera 10 and the area information of the digital camera 10, shooting is prohibited only when shooting at an enlargement ratio of a certain level or more is performed on a subject for which craze-up shooting is prohibited. about.

  Based on the focal length information of the lens of the digital camera 10, the area information of the digital camera 10, and the resolution information, a subject for which close-up shooting is prohibited may be shot at a certain magnification or higher when converted from the resolution. Shooting can be prohibited only when

  On the other hand, only the presence and code of the digital camera 10 are transmitted by an optical transmission device that modulates and transmits data to a directional light beam. You can also restrict shooting and give warnings.

  DESCRIPTION OF SYMBOLS 10 ... Digital camera, 12 ... Light receiving unit, 14 ... Voyeurism prevention system, 16 ... Shooting lens, 18 ... CCD, 20 ... Imaging part, 22 ... Monitor, 24 ... Recording circuit part, 26 ... Control circuit part, 28 ... Release button 30 ... Signal generation circuit unit, 32 ... LED, 36 ... Subject, 46 ... Photodiode, 48 ... AM demodulator, 50 ... Control circuit unit, 54 ... Speaker

Claims (5)

  Recognizing that the subject is photographed by receiving only the visible light irradiation range in which the imaging device modulates and irradiates predetermined data to directional visible light, and reads the predetermined data from the visible light. An imaging notification device that notifies that the subject is photographed by a notification means that emits light, vibration, or sound. Means disposed around the subject so as to receive visible light having directivity from the imaging area, and receiving only within the irradiation range of the visible light irradiated by the imaging device by modulating predetermined data to the visible light having directivity And means for reading out the predetermined data from the visible light and recognizing that the subject is photographed, and notifying means for notifying that photography is possible / impossible and / or strobe light is possible / impossible by light and sound An imaging notification apparatus comprising: Recognizing that the subject is photographed by receiving only the visible light irradiation range in which the imaging device modulates and irradiates predetermined data to directional visible light, and reads the predetermined data from the visible light. An apparatus for preventing the subject from being photographed satisfactorily by an obstructing means.   The apparatus according to claim 3, wherein the disturbing unit interferes with good photographing of the subject by emitting disturbing light toward a glass disposed in front of the subject.   The apparatus according to claim 3, wherein the obstructing unit obstructs good photographing of the subject by setting a liquid crystal plate disposed in front of the subject to an opaque state.

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