JP3563830B2 - Head mounted finder device - Google Patents

Description

[0001]
[Industrial applications]
The present invention relates to a head-mounted finder device, and more particularly, to a device incorporating a line-of-sight detection module and a device for displaying a subject area by dividing a finder optical path, and a device integrated with such a device. It concerns the structure of a suitable camera.
[0002]
[Prior art]
Hitherto, various applications have been filed for a head-mounted finder device or a device in which a camera is integrally provided with the finder device. As a representative example of these, there is a proposal in JP-A-63-284529.
[0003]
The video camera proposed here attaches a small camera body to a headband worn on the head, and reflects the reflected light from a reflecting mirror located in the middle of the incident optical path of the camera to the tip of the optical fiber tube via a lens. The user is guided to an optical viewfinder that can be set at the position of the photographer's eyes, and the photographer can check the image of the object through the lens of the optical viewfinder. An operation such as release is input from a remote control unit attached to a collar or the like, and the operation input is transmitted to a camera body or a separate VTR through a connection cord.
[0004]
[Problems to be solved by the invention]
However, in this case, because of the structure in which the optical viewfinder is disposed immediately in front of the photographer's eye via the optical fiber tube, the magnification of the object scene image and the monitor image from the optical viewfinder are different, so that there is a sense of visual discomfort. There was a problem.
[0005]
Furthermore, this device is also configured integrally with the camera body as a head-mounted type, but an operation unit such as a release button is housed in a remote control unit, attached to the collar, and connected to the camera body by a connection cord. As a result, the cords protrude far from the head-mounting device and extend around the front of the upper body, so that there is a problem that the portability is not good, and the portability is poor and expensive.
[0006]
Furthermore, since a small camera is prepared as a head mounted type, there is a light feeling when mounted on the head as a finder device, but since the CCD is smaller than usual, the number of pixels is limited. However, there are problems such as poor image quality of the shot video and low user satisfaction.
[0007]
Therefore, an object of the present invention described in claim 1 is to provide a compact and excellent portability without any operation unit and connection cord, and to adjust the amount of light incident on both eyes of the finder device to be mounted, thereby reducing visual discomfort. It is an object of the present invention to provide a head-mounted finder device without any.
[0008]
It is still another object of the present invention to provide a head mounted type finder device having a camera portion which can be automatically operated by a finder device outside a field of view.
[0009]
Still another object of the present invention is to provide a head mounted type finder device in which the finder field frame display is automatically switched when the vertical and horizontal photographing positions are switched.
[0010]
Still another object of the present invention is to provide a head mounted finder device which does not require battery replacement.
[0011]
Furthermore, the present invention as set forth in claim 5 provides a waterproof head-mounted finder device having an automatic operation type camera unit which does not require an operation unit and does not require operation of both hands and which can perform underwater photography. It is in.
[0012]
Still another object of the present invention is to provide a head mounted finder device capable of detecting the vertical and horizontal shooting postures of a waterproof camera safely and reliably.
[0018]
Means and action for solving the problem
Another specific configuration for realizing the object of the invention according to the present application is a finder device for viewing an object field, wherein the object field is viewed by one of both human eyes. A detection device for detecting the human eyeball in the optical path for viewing the information, and incorporating information about the photographic field of view of the camera in the optical path for viewing the object field with the other eye, the finder device detects the amount of the object field entering both eyes. A head mounted type finder device is characterized in that filters of different densities are used to make them substantially the same.
[0019]
According to this configuration, the line-of-sight switch and the display of the subject area are incorporated into the glasses-type finder device so as to correspond to the left and right eyes, respectively, and the shutter release operation is automatically performed. A compact, portable head-mounted finder device that does not use any cords or the like can be obtained, and the amount of light incident on both eyes can be adjusted to eliminate visual discomfort.
[0020]
According to another specific configuration for realizing the object of the invention according to the present application, as set forth in claim 2, the finder device integrally includes a camera unit that captures an object field outside a field field of view. 4. The head mounted finder device according to claim 3, wherein:
[0021]
According to this configuration, it is possible to automatically release a camera integrally mounted outside the field of view from the finder side for viewing the field of view to capture an image.
[0022]
According to another specific configuration for realizing the object of the invention according to the present application, a position switching means for vertical and horizontal photographing of the camera unit, and a field of view in a finder by detecting the position switching. 3. The head mounted finder according to claim 1, further comprising a field frame switching means for switching a frame display.
[0023]
According to this configuration, it is possible to photograph both the vertical and horizontal positions of the camera, and the view frame display of the finder is automatically switched.
[0024]
Another specific configuration for realizing the object of the invention according to the present application is that, as described in claim 4, a solar panel for storing a detachable small-capacity secondary battery is provided above the apparatus. 4. The head mounted type finder device according to claim 1, wherein:
[0025]
According to this configuration, since the device is equipped with a small and small-capacity secondary battery and is operated while charging from the solar panel, there is no need to replace the battery.
[0026]
A specific configuration for realizing the object of the invention according to the present application is, as described in claim 5, in the head mounted finder device according to claims 1 to 4, having a finder and a line-of-sight switch, and A head-mounted finder device comprising a housing for waterproofly holding a goggle portion to be mounted and a camera unit having a waterproof structure.
[0027]
According to this configuration, an automatic release-type waterproof camera that does not require an operation unit such as a shutter release button can be configured.
[0028]
Another specific configuration for realizing the object of the invention according to the present application is that, as described in claim 6, the posture detection sensor for switching the field of view of the camera unit vertically and horizontally includes a light projecting element and a light receiving element. 6. The head mounted finder device according to claim 5, wherein:
[0029]
According to this configuration, there is no need to worry about waterproof processing such as water leakage, and the position change of the camera can be reliably detected.
[0040]
【Example】
(First embodiment)
1 to 11 show a first embodiment of the present invention.
FIG. 1 is a perspective view of a head mounted finder device according to a first embodiment of the present invention. In FIG. 1, reference numeral 1 denotes a headband for mounting the apparatus on the head, and can perform photographing without holding the camera by hand. Reference numeral 2 denotes a goggle portion formed of a toric aspherical surface or a free-form surface lens, which serves as a viewfinder of a conventional camera, and is a half mirror, which shows a photographing field of an object field to a photographer at an equal magnification. . Reference numeral 3 denotes a lighting window for taking in light for displaying a field of view showing a shooting field and various shooting information. 4 denotes a display LCD for photographing an object scene using the light taken in from the lighting window 3. The field of view is displayed at the same magnification by the toric aspherical lens of the goggle unit 2. Since the goggles 2 use filters having different densities for left and right, the incident light amounts of both eyes are almost the same. By these means, the photographer can take a picture without any visual discomfort.
[0041]
Reference numeral 5 denotes a line-of-sight sensor for detecting the state of the eyeball (blinking), which is a release means including a light-emitting element for illuminating the eyeball or the periphery of the eyeball and a light-receiving element for detecting reflected light thereof. As a result, mode switching such as shutter release and zoom operation can also be performed by gaze input.
[0042]
Reference numeral 6 denotes a camera unit in which the position of the camera and the direction of the photographic optical axis are precisely adjusted so that the photographic field of view of the camera matches the photographic field of the same magnification described above. Further, the photographing optical system 6a is used as a secondary imaging system, and an image is projected on a film using two mirrors 6b. As a result, even in an imaging system requiring a long optical path length, imaging with a small magnification (with a focal length equivalent to a standard lens) can be performed with a simple configuration.
[0043]
Here, the camera unit 6 will be described in detail with reference to the following drawings.
FIG. 2 is a perspective view of the camera unit of the finder device shown in FIG.
FIG. 3 is a sectional view showing a rotation mechanism of the camera unit shown in FIG.
FIG. 4 is a schematic diagram showing finder field frame switching of the finder device shown in FIG.
FIG. 11 is a configuration diagram of the camera unit shown in FIG.
[0044]
In the film cartridge 10 used in the camera shown in FIG. 11, the entire film is wound up to the leading end, and the film 10c is pulled out by opening the light guide 10a and rotating the cartridge shaft 10b. The cartridge 10 is loaded by opening the cartridge lid 61 in the direction B (by the shaft center 61a) and dropping the cartridge 10 in the axial direction of the cartridge. When the cartridge 10 is loaded, the light guide 10a is opened, the fork 62 is rotated by a motor (not shown), and the film 10c is pulled out. The pulled-out film 10c is taken up by the spool 63 for several frames, and becomes a photographing standby state. Thereafter, each time the release operation is performed, the film 10c is wound up one frame at a time.
[0045]
A first photographing optical system (hereinafter, referred to as an optical system) 64 is disposed below the spool chamber, and is orthogonal to the axial direction of the spool 63. The primary image formed by the first optical system 64 is bent by 90 ° in the axial direction of the cartridge 10, which is the so-called first direction, by the first mirror (reflection device) 65. Subsequently, a secondary image is formed by the second optical system 66, and the image is bent by 90 ° on the film surface by the second mirror 67 and the image is transferred. As described above, since the secondary imaging system is used, the degree of freedom of the optical system is increased, and lenses having various focal lengths can be used.
[0046]
Compared with the conventional camera, this camera has a larger image screen, 35 mm size, a slightly smaller new format size silver halide film, or a relatively large size CCD element can be set, and the image quality is sufficiently satisfactory. It is.
[0047]
Further, by using a secondary imaging system, a structure (not shown) for protruding an LCD or the like from the primary imaging surface can be used to input an arbitrary figure or the like, or a scene where high luminance and low luminance coexist. Thus, it is possible to perform processing in which the transmittance of the high-luminance portion is adjusted and both are clearly recorded.
[0048]
The camera section 6 shows the vertical position shooting state in the state of FIG. 1, but when performing the horizontal position shooting, the camera 6 is tilted by 90 ° as shown in the horizontal position shooting diagram of FIG. This is shown in FIG. 3, in which a guide band 9 fitted so as to wrap the lens barrel of the camera unit 6 is fixed to the headband 1 and has a convex portion 9a, and the periphery of the convex portion 9a is elastic. The rotation of the camera 6 in the direction A engages with the concave portions 6c and 6d and is positioned. At this time, the field frame of the LCD 4 is vertically and horizontally switched by a switch (not shown) as shown in the field frame display diagrams of FIGS. 4 (a) and 4 (b).
[0049]
Returning to the configuration of FIG. 1 again, reference numeral 7 denotes a detachable strobe device. If strobe shooting is required, the strobe shooting can be performed by connecting to an accessory shoe provided on the side surface of the headband 1. Reference numeral 8 denotes a detachable solar panel, which stores electricity in a secondary battery (not shown) (flat type or small cylindrical type) according to the amount of light received when the camera is mounted, so that the camera of the present invention does not require battery replacement.
[0050]
Next, triggering of a predetermined function of the camera by the line-of-sight sensor 5 is performed as shown in the configuration diagram of the system for detecting blinking, the side view of FIG. 5B, and the top view of FIG. The light beam projected by the camera enters the line-of-sight sensor 5 following the path shown in the figure, and detects the state of the eyeball (blink). In this case, it must be possible to distinguish it from blinks that people always go unconsciously. On this point
The configuration is such that when the reflected light detected by the reflected light detecting means or the imaging means in the eye-gaze sensor 5 changes by a predetermined amount, it is determined that the photographer is blinking consciously, and a release of the camera is triggered.
[0051]
FIG. 6 is a block diagram showing the entire configuration of the finder device shown in FIG.
In FIG. 6, 11 is a system controller for performing sequence control and calculation, 12 is a ROM for storing programs and data, 13 is a RAM for storing data, 14 is a photometric circuit for measuring the amount of light of a subject, and 15 is a photometric circuit. , A shutter driving circuit for exposing the film, and a main switch 17 for switching the operation or non-operation of the camera, which is connected to the MAIN port of the system controller 11. Reference numeral 18 denotes a release switch for instructing exposure of the film, and is connected to the RLS port. 19 is a film, 20 is a shutter, and 21 is a taking lens.
[0052]
22 is an SPD for detecting light reflected from the eyeball, 23 is a light shielding mask for defining a detection area on the eyeball, 24 is a light receiving lens, 25 is a detection area of the SPD22 on the eyeball, 26 is an operational amplifier, 27 is a resistor, 28 Is an A / D converter, and the analog and digital converted data are input to the system controller 11. 29 is an iRED for eye illumination, and 30 is a constant current driver. Reference numeral 31 denotes a timer for generating an interrupt of a predetermined period. The count permission of the timer is input from the system controller 11 via an EN terminal, and when the predetermined count is completed, an interruption (INTT) of the predetermined period is generated in the system controller 11 by the carry. Is configured.
[0053]
FIG. 7 is a flowchart of the processing of the system controller shown in FIG.
FIG. 8 is a light-receiving amount timing chart of the SPD shown in FIG.
FIG. 9 is a diagram showing the state of the detection area on the eyeball when the user is not blinking.
FIG. 10 is a diagram showing a state when the eyelids are blinked and the eyelids are closed.
[0054]
Next, the operation will be described with reference to FIGS.
[0055]
First, when the main switch 17 is turned on, the eyeball illumination iRED 29 is turned on (S101).
[0056]
The counting of the external timer (TEX) 31 is started (S102). Here, the operation of the external timer (TEX) will be described. The external timer (TEX) 31 is a free-lance counter that counts up at a predetermined time interval when the system controller 11 sets the operable state (enable state). is there. The count-up signal is connected to an external interrupt terminal of the system controller 11 and operates so as to generate an external interrupt every predetermined time.
[0057]
N array variables SIG are defined (S103). The count value (C) of the average calculation number counter is reset to 1 (S104).
[0058]
A HALT state is set (S105). When the external timer (TEX) 31 counts up from this state at a predetermined cycle, a timer interrupt is generated in the system controller 11 and the operation after S106 is started.
[0059]
A / D conversion is performed on the amount of light received by the light receiving SPD 22 (S106). In this case, the light receiving current (iSPD) received by the light receiving SPD 22 is current / voltage converted by the operational amplifier 26 and the resistor 27 and input to the A / D converter 28. The voltage value quantized at a predetermined resolution by the A / D converter 28 is input to the system controller 11. Needless to say, the timing of the A / D converter 28 is hardware-controlled by the system controller 11. The A / D conversion result is stored in the array variable SIG (C) (S107).
[0060]
The change rate of the stored SIG (C) with respect to the average value (SUMAV) in the past predetermined period is obtained and compared with the predetermined value (R). If the rate of change is larger than the predetermined ratio (R), the process proceeds to S109, and if smaller, the process proceeds to S203 (S108). The CHINH flag is checked to determine whether or not it is a blinking input prohibition period (S109). The operation state of the internal timer (TIX) of the system controller 11 is checked. If the operation is in progress, the process proceeds to S111. Check the count value of the internal timer (TIX). If the count value is equal to or more than the predetermined value (A), the process proceeds to S112, and if it is less than the predetermined value (A), the process proceeds to S117 (S111).
[0061]
The luminance of the subject is measured by the photometric circuit 14 (S112). The distance from the camera to the subject is measured by the distance measuring circuit 15 (S113). The shutter driver 16 opens the shutter 20 for the opening time of the shutter 20 calculated based on the luminance of the object measured by the photometry circuit 14 and the sensitivity of the film 19 loaded. After the exposure is completed, the film is fed by one frame by a film feeding means (not shown) (S114).
[0062]
A blink detection prohibition flag (CHINH) is set (S115). The internal timer (TIX) is reset (S116).
[0063]
The value of the average calculation sampling counter (C) is incremented by 1 (S117). The state of the main switch 17 is determined. If it is on, the process proceeds to S122, and if it is off, the process proceeds to S120 (S119).
[0064]
If it is determined to be in the off state, the counting of the external interrupt timer (TEX) is stopped (S120). The eyeball illumination iRED 29 is turned off, and the process ends (S121). If it is determined to be in the ON state, the value of the average calculation sampling counter (C) is determined. If it is less than the number of arrays (N) defined in S103, the process proceeds to HALT in S105, and if it is greater than the number of arrays (N), sampling is performed. The counter (C) is reset (S122).
[0065]
On the other hand, in S108, the change rate of the stored SIG (C) with respect to the average value (SUMAV) of the past predetermined period is obtained, and when it is determined that the change rate is smaller than the predetermined value (R), the internal timer (TIX) is reset. (S123). The blink detection prohibition flag (CHINH) is reset (S124). An average value (SUMAV) for a predetermined period in the past is calculated. This calculation is performed by dividing the total number of past samples (N) by the number of samples (N) (S125).
[0066]
The processing of the system controller has been described based on the flowcharts. The blink detection processing can be summarized as follows. First, as shown in FIGS. 9 and 10, the detection area on the eye of the light receiving SPD 22 is determined by the light receiving lens 24 and the field mask 23. It is defined as 25 in the figure. When the eyelids are open, the detection area corresponds to the pupil, iris, and white of the eyeball (sclera) as shown in FIG. When the eyelid is closed, the upper eyelid is detected as shown in FIG. 32 in FIG. 10 is the upper eyelid.
[0067]
The upper eyelid is shorter than the eyeball with respect to the detection system, and this detection system illuminates with infrared light, so there is less variation due to the skin, and since the reflectance is higher than on the eyeball, the amount of reflected light is smaller when the eyelid is closed. To increase. In addition, there is a feature that the opening and closing of the eyelid at the time of blinking is instantaneously moving up and down like a shutter, and the speed of this up-and-down movement is small depending on the person, and the change in the amount of reflected light is a change including a predetermined frequency component.
[0068]
Therefore, in the present embodiment, as a method of capturing the light amount change characteristic at the time of blinking, the detected light amount value and a predetermined number of past samplings are stored as in the process of S107, and the average (S125) is obtained as in the process of S125. SUMAV) is always calculated. As in S108, the rate of change of the detected light amount value with respect to the past average is calculated and compared with a predetermined rate (R). When a predetermined period (count value of the internal timer TIX) continues, a trigger is triggered for the first time.
[0069]
Furthermore, after detecting a blink once conscious, if the eyelid is opened and the amount of received light does not fall below a predetermined value, a blink detection inhibition flag (CHINH) is set and controlled so that the next trigger is not performed. .
[0070]
The light amount change characteristic due to blinking is determined by an interruption period by an external timer (TEX), the number of past average calculation of light amount value (N), and a change rate (R) with respect to the past average value. The blink maintaining time is determined by an internal timer (TIX), and the light amount change detection characteristic is determined by the size of the blink detection area 25 with respect to the eyeball, the distance between the eyeball and the detection system, the speed of eyelid movement when blinking, and the like. It is determined.
[0071]
In addition, since it is known that the unconscious blinking of the human is completed in about 100 to 150 msec, the detection maintenance time is about 100 to 150 msec. It is considered that it is preferable to set about 300 msec.
[0072]
As shown in the timing chart of FIG. 8, (A) and (B) in the figure are the light receiving amount change characteristics in the case of unconscious blinking, and (C) are the light receiving amount in the case where the photographer blinks consciously. It is a change.
[0073]
In the present embodiment, the function triggered by blinking is a release operation. However, a configuration may be adopted in which one of more functions is selected and executed.
[0074]
As described above, in the present embodiment, since the line-of-sight switch and the finder are constituted by the glasses (goggles) type half mirror, there is no visual discomfort due to the difference in magnification, and the finder device is compact, excellent in portability, and has automatic operation. was gotten.
(Second embodiment)
FIG. 12 is a perspective view of a head mounted finder device according to a second embodiment of the present invention.
[0075]
FIG. 13 is a perspective view showing a state in which the apparatus shown in FIG. 12 is photographed in a horizontal position.
[0076]
In FIG. 12, reference numeral 101 denotes a head belt for mounting the finder device on the head. Reference numeral 102 denotes a housing for holding a goggle part having the same function as that of the previous embodiment of the present device as a waterproof structure having secrecy. Adjust 101 and put on the goggles according to the eyes. This prevents water from entering around the eyes like ordinary underwater goggles. A camera unit 103 has a waterproof structure.
[0077]
Since the conventional underwater camera is mainly operated manually (there is little auto), there are operation levers in the housing in addition to the release button, and it is troublesome to waterproof each operation lever. In the case of (1), since the number of operation members can be reduced by frequently using the line-of-sight switch, the waterproof structure is easy and the water resistance is also advantageous.
[0078]
Since the camera unit 103 has the same function as the previous embodiment, switching between vertical and horizontal shooting is possible by tilting the camera 103 by 90 ° as shown in FIGS. At this time, the posture detection for vertical and horizontal switching (as shown in FIG. 4) of the field frame is performed by detecting the posture by the light emitting element (LED) 104 and the light receiving element (SPD) 105 as shown in FIG. Is what you do. This method is suitable for a waterproof camera since there is no need to project a switch contact piece or the like outside the camera.
[0079]
Note that the camera unit 103 can be a video camera using a CCD. If a display is brought to the frame of the finder, there is no need to hold the video camera by hand, so that the degree of freedom in underwater shooting is increased. Device can be configured.
[0080]
As described above, in the second embodiment, since the waterproof camera type head-mounted finder device is configured, it is not necessary to hold the camera by hand, and ski areas in snow, outdoor areas in rain, sea bathing, water sports, etc. It is also ideal for shooting underwater, and as a full-fledged underwater camera for scuba diving and skin diving under high water pressure, both hands are free so it is possible to shoot underwater with high safety and quick response The camera is strong enough to take a photo opportunity, and because there is no need for lever operation or button operation, you can shoot while holding the object you picked up yourself. Is obtained. Although not shown, if a strobe device having a waterproof structure is attached to the shoe, it can be used for underwater photography. The same applies to underwater lights during video shooting.
[0081]
【The invention's effect】
According to the first aspect of the present invention, the detection device for detecting the eyeball in the optical path of one eye is configured to incorporate the information of the photographic field of the camera in the optical path of the other eye. Although a compact and portable head-mounted finder device without any parts, connection cords, etc. can be obtained, the finder device uses filters with different densities for left and right, so the amount of light incident on both eyes is adjusted and visual A head-mounted finder device that does not cause discomfort is obtained.
[0082]
According to the second aspect of the present invention, since the finder device is integrally provided with a camera unit for photographing the scene outside the field of view, the release of the camera provided outside the field of view is performed on the finder side. Can be operated more automatically.
[0083]
According to the third aspect of the present invention, since the vertical and horizontal position switching means of the camera and the visual field frame switching means for switching the display of the visual field frame are provided, the visual field frame of the finder is automatically set in conjunction with the switching of the vertical and horizontal shooting positions. Switch.
[0084]
According to the fourth aspect of the present invention, a detachable solar panel is mounted above the finder device to store a small and small-capacity secondary battery provided as a device power supply, so that battery replacement is unnecessary. An energy-saving head-mounted finder device can be obtained.
[0085]
According to the fifth aspect of the present invention, since the head mounted type finder device has a waterproof structure, an underwater camera with good underwater operability using a line-of-sight switch and omitting the operation unit can be obtained.
[0086]
According to the sixth aspect of the present invention, since the attitude detection sensor for switching the field of view of the camera unit having the waterproof structure is constituted by the light emitting element and the light receiving element, the vertical and horizontal position switching of the waterproof camera unit can be performed safely and reliably. Can be detected.
[Brief description of the drawings]
FIG. 1 is a perspective view of a head mounted finder device according to a first embodiment of the present invention.
FIG. 2 is a perspective view showing a lateral position photographing of the head mounted finder device shown in FIG.
FIG. 3 is a sectional view showing a rotation mechanism of the camera unit shown in FIG.
FIG. 4 is a schematic diagram showing switching of a finder field frame shown in FIG. 1;
FIG. 5 is a configuration diagram showing a system of a device for detecting blinks shown in FIG. 1;
FIG. 6 is a block diagram of the head mounted finder device shown in FIG.
FIG. 7 is a flowchart of an operation of the head mounted finder device shown in FIG. 1;
8 is a timing chart of a change in the amount of received light when the head-mounted finder device shown in FIG. 1 detects blinking.
FIG. 9 is a diagram of a detection area of an eyelid open state of the head mounted finder device shown in FIG. 1;
FIG. 10 is a diagram showing a detection area of the closed state of the eyelid shown in FIG. 9;
FIG. 11 is a perspective view of a head mounted finder device according to a second embodiment of the present invention.
FIG. 12 is a perspective view showing a horizontal position photographing of the head mounted finder device shown in FIG. 11;
FIG. 13 is a perspective view showing a state in which the apparatus shown in FIG. 12 is photographed in a horizontal position.
[Explanation of symbols]
1 Headband
2 Goggles
3 Daylighting window
4 LCD
5 Eye gaze sensor
6 Camera section
7 Strobe device
8 solar panels
9 Guide band
11 System controller
12 ROM
13 RAM
14 Photometry circuit
15 Distance measuring circuit
16 Shutter driver
17 Main switch
18 Release switch
19 films
20 shutter
21 Shooting lens
22 Light receiving SPD
23 Detection area light shielding mask
24 Receiving lens
25 Detection area range
26 Operational Amplifier
27 Resistance
28 A / D converter
29 Infrared light emitting diode
30 constant current driver
31 External timer
32 eyelids
101 head belt
102 housing
103 waterproof camera
104 Floodlight LED
105 SPD

Claims (6)

A viewfinder device for viewing an object scene, wherein a detection device for detecting a human eyeball in an optical path for viewing the object field with one of both eyes of a human being, and a detecting device for detecting the object field with the other eye. built-in information about the shooting view field of the camera in,
A head mounted type finder device, wherein the finder device uses filters of different densities for right and left to make the amount of field entering both eyes substantially the same . The viewfinder device head-mounted finder device according to claim 1, characterized in that integrally includes a camera unit for photographing an object scene outside scene viewing. 3. The head-mounted type according to claim 1, further comprising a position switching unit for vertical and horizontal photographing of the camera unit, and a field frame switching unit for detecting the position switching and switching a display of a field frame in a finder. Finder device. Head-mounted finder device according to claim 1 to 3, wherein further comprising a solar panel for power storage of the secondary battery of detachable small capacity device upward. 5. The head-mounted finder device according to claim 1 , further comprising a housing having a finder and a line-of-sight switch for waterproofly holding a goggle portion to be fitted to an eye, and a camera portion having a waterproof structure. Head mounted finder device. 6. The head mounted type finder device according to claim 5, wherein the attitude detection sensor for switching the field of view of the camera section vertically and horizontally comprises a light projecting element and a light receiving element.

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