JPS59189331A - Special photographing device - Google Patents

Abstract

PURPOSE:To obtain a clear photograph by arranging at least two light sources which light a subject at different angles, and moving the light sources almost at the same speed and taking a photograph while holding them in the direction so that the subject is lighted all the time. CONSTITUTION:The subject 1 having a fingerprint, etc., is pressed against an opening part 3 and the stop of a photographing device is adjusted after it is confirmed that the light sources 4 and 8 and shield plates 7 and 14 are at fixed positions, and an operation push button 17 is held pressed until the photography is completed. The light source 4 is moved firstly on the same plane in parallel around a fulcrum 11 as a center, and the shield plate 7 rotates at the same time around the fulcrum 11 in the opposite direction diagonally to light source 4. Then, the light source 8 is moved in parallel from an upper limit to a lower limit and the shield plate 14 is moved in parallel from an upper limit to a lower limit while diagonally to the light source 4 at the same time. The operation button 17 is released on the photography, and a reset push button 18 is pressed to return the light sources 4 and 8 and shield plates 7 and 14 to the fixed position. Consequently, a clear photograph is obtained even when the trace of a fingerprint, holograph, etc., on the subject is small or thin.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a special photographing device that can take special photographs, for example, clearly photographing fingerprint marks, pen pressure marks, etc.

Generally, fingerprints on smooth surfaces such as glass or ceramics, or traces caused by pen pressure can be clearly photographed using a special photographing method.

Conventionally, as this type of special i-most photographing device, for example, a special on-site fingerprint photographing device by the present inventor is known.As shown in FIG.
is pressed against an opening 3 provided at one end of a box-shaped case 2, and the light #4 is moved in the direction of arrow A at the same speed to take pictures. At this time, in order to maintain the orientation of the light source 4 so as to always illuminate the subject 1, and to prevent the reflected light of the illumination projected through the photographic lens 5 from being captured on the film, a shielding plate 7 is placed just in front of the focusing plane 6. are arranged, and as the light source 4 moves, a shielding plate 7 is moved in the direction of an arrow B opposite to the light fp, 4, and the subject 1 is photographed while preventing reflected light.

However, depending on the condition of the surface of the subject 1 or fingerprints, pen pressure marks, etc. on the subject 1, it may not be possible to clearly photograph the marks. For example, if the traces such as fingerprints or pen impressions on the subject 1 are small, a sufficiently clear photograph cannot be obtained. In this case, even if the same light source 4 is moved in the same direction several times to take pictures, good results will not be obtained, and a clearer picture will not be obtained.

This invention was made by focusing on the above-mentioned mesocondylar point,
As a result of repeated tax research, the present inventor found that at least two sets of light sources are arranged to illuminate the subject at different angles, and each light source is sequentially maintained in the direction that illuminates the subject, and the light sources are arranged in substantially the same way. By moving at high speed and taking pictures,
The purpose of the present invention is to provide a special photographing device capable of taking clear photographs even when the traces on a subject are small.

Another object of the present invention is to cause the at least two sets of movable light sources that separately illuminate the subject to be rotated at a reduced speed around an axis by the rotational force of a drive motor; To provide a special photographing device capable of successively decelerating and rotating different movable light sources by driving different drive motors.

Furthermore, another object of the present invention is to irradiate a subject placed at the opening of a box-shaped case with a light in conjunction with the opening and closing of a lid provided on one side of the case so that the subject can be photographed properly. It is equipped with a lighting device to confirm whether the subject is facing the subject, and a static light source that illuminates the aperture from the side, and an image obtained through the lens by illuminating the subject placed in the aperture using an oblique light effect. To provide a special photographing device capable of taking photographs by tying it on a photosensitive plate.

The basic configuration of this invention will be explained below.

Inside the photographing device, a plurality of light sources are arranged to illuminate the photographic lens of the camera and the subject at different angles, and an opening through which the subject is exposed is provided in front of the photographic lens. Each light source is moved at approximately the same speed by a drive device while being held in the direction in which it illuminates the subject, and the reflected light illuminated by these light sources on the subject is projected onto the film at the focal plane through the photographic lens. In order to prevent this, place a shielding plate that has the width of the reflected light on the focal plane.
- At least two sets of light sources that illuminate the subject are sequentially moved so that they can illuminate the subject from different directions. This is a special photographic device designed to This device consists of an opening at one end of a box-like case, two or more light sources each having a plurality of light bulbs that illuminate the subject;
It consists of a light source drive mechanism, a photographic lens, a shielding plate, a focusing surface at the other end of the case, an operation push button, an aperture adjustment lever, etc.

To take a picture, place the subject at the aperture, adjust the aperture, and then press the operation push button. At this time, each set of light sources turns on and moves separately between the subject and the photographic lens to focus on the subject. By keeping parallel or nearly parallel trajectories and illuminating the subject from two or more different directions, multiple exposures can be made to the film through the lens to obtain a clear image, while each shield plate is used to control the movement of each set of light sources. The lens moves in the opposite direction to prevent light reflected from the subject through the lens from affecting the focal plane. Photographing is completed in this way.

Embodiments of the present invention will be described below with reference to the drawings. Note that parts that are the same as or equivalent to the conventional ones are given the same reference numerals, and detailed explanations are omitted.

2 and 3 do not show the basic structure of the special photographing device according to the present invention, but will be explained below using a plan view and a side view for explanation. In the figure, reference numeral 8 denotes a light source provided separately from the light source 4, which can be moved on the same plane -1- in the direction of arrow C by a drive device 9. The drive device 9 is driven by a battery 10 or an external 'rK6f (not shown), and a small motor (not shown) is used as a means for moving the light source 4.8 in parallel on the same plane. The light source 8 moves vertically in parallel while sliding the guide column 12 fixed to the case 2. At the same time, in order to prevent the reflected light of the illumination of the subject 1 by the light #8 from being projected onto the film 13 placed at the focal point 6 through the photographic lens 5, a shielding plate 7 for the light #4 is provided.
Similarly, the shielding plate 14 is moved in parallel in the opposite direction diagonally to the light #8 while sliding the guide post 15. Note that the photographic lens 5 of the 7-photograph is arranged approximately in the center of the box-shaped case 2.

? Figure R4 shows a specific example of the bipedal light source 4.8. In this example, five miniature light bulbs 16 are arranged in a straight line.
Each miniature light bulb 16 is oriented in the same direction so as to illuminate the same direction, and the socket portion has a large gap and a small shape to increase the amount of light passing through.

The operation will be explained based on the above configuration.

After confirming that the light source 4.8 and the a-shield plate 7.14 are in the correct position, place the subject 1 with fingerprints etc. on it and press it against the opening 3, as in the conventional example, and press the camera. Adjust the aperture and press the operation push button 17, which also serves as the shutter. This operation push button 17 is kept pressed until the photographing is completed. At first,
The light source 4 moves in parallel on the same plane about the fulcrum 11, and at the same time the shielding plate 7 moves in the opposite direction diagonally to the light source 4, also about the fulcrum 11. Next, light #8
is moved in parallel from the upper limit to the lower limit, and at the same time, the shielding plate 14 is moved diagonally with the light source 8 from the lower limit to the upper limit by -8 lines. When the shooting is finished, press the drive button 17.
, and press the reset push button 18 to return the light source 4.8 and shielding plate 7.14 to their normal positions.

In the above embodiment, two sets of light sources that illuminate the subject 1 at different angles are arranged, and images are taken while sequentially illuminating the subject 1 separately, and the light sources may be moved in any order. . It is also possible to arrange three or several sets of light sources and take pictures while lighting them at different angles, and images with improved clarity can be obtained in proportion to the number of times the light sources are illuminated at different angles. . In other words, it is important to photograph the subject 1 by changing the angle at which it is illuminated.In the above embodiment, a light source that moves horizontally and vertically is arranged, but the plane in which the light source moves is limited to this embodiment. However, it is necessary to change the direction in which the object 1 is illuminated and take the photograph.

Furthermore, the film of an instant camera can be attached to this device, and in this case, the photographed results can be immediately recognized at the photographing site.

Next, a specific example will be described in which two sets of movable light sources are used in FIGS. 5 to 811(a) and (b).

Note that the same components as those of the above-mentioned embodiment and the conventional example are given the same reference numerals, and detailed description thereof will be omitted.

19.20 is an arm rod that supports the movable light source 4.8 and can be rotated within the case 2 in intersecting directions;
It is designed to be able to rotate around the fulcrums 11 and 21 with a constant amplitude.

Reference numeral 22 denotes a drive mechanism for the arm rod 19, and the arm rod 20 is also provided with an identical drive mechanism 23. Now, the mechanism 22.2
3 according to FIG. 7, the output parts (pinions) of the motor A driven by the push button 17 and the motor A2 driven by the reset push button 18 are rotated in opposite directions to the reduction gears. It is meshed with mechanism 24.

The respective drive mechanisms 22 and 23 are shown in FIG. 8(a).
It is electrically controlled by a drive circuit for motors A1, A2, B7, and B2 shown in (b).

That is, FIG. 8(a) shows a drive circuit using push buttons 17, which includes DC power source E1 push button switches SA and SB.

It has a pilot lamp t1 for indicating the operation of motor A, and further has a pilot lamp t2 for indicating the operation of motor B1. The pushbutton switches SA, SJ, and SJ are arranged at the final swing movement positions of the arm levers 19 and 20, respectively, and are configured to be pressed and controlled by the arm levers 19 and 20, respectively.

Therefore, when the push button 17 is pressed, the circuit of the motor A1 is first closed, the motor A is activated, the drive mechanism 22 is activated, and the reduction gear mechanism 24 gently moves the arm rod 19 to the fulcrum 1.
1 in predetermined directions A and B, and at the same time, the light source 4 turns on and photographs the subject 1. When the arm rod 19 reaches the final swing width movement position, press the push button switch SA,
Switch the contact position to open the circuit of motor A1, and open the circuit of motor B.
.

Since the circuit is closed, the drive mechanism 23 of the other arm rod 20 is activated, and the reduction gear mechanism 24 gently rotates the arm rod 20 in a predetermined direction cXD about the fulcrum 21, and at the same time turns on the light tj8. The light source 4 can be turned on to illuminate the subject 1 from a direction different from that of the light source 4 and photograph the subject 1. At the same time as switching the circuit to the motors A8 and B mentioned above, the light source 4
Of course, the lights should be turned off.

When the arm rod 20 reaches the final swing width movement position, the push button switch SJ changes its contact position to stop driving the motor B, releases the push button 17, and then switches the light source 4.
8 can complete double exposure photography. Of course, in this case, the shutter of the lens 5 is opened and closed in response to pressing and releasing the push button 17.

FIG. 8 (1)) shows the light Ig, 4, when the reset push button 18 is pressed.
．． This is the drive circuit for motors A2 and B2 for restoring the current state in Figure 8, and is basically the same as that in Figure 8(a).The difference is that the former shows the drive of motors A1 and B1 (7). 'A2 and A2 are equipped, whereas the latter is not equipped with it, and the connection direction of the power source E is both forward and reverse, and the rotation directions of the motors Al, A2, and motors B7 and -11-B2 are respectively opposite. It's just that.

Therefore, when the reset push button 18 is pressed, the motor A2 is activated to rotate the arm rod 19 about the fulcrum 11 in the opposite direction to the direction AXB via the drive mechanism 22 and the reduction gear mechanism 24, and when it reaches the initial position, the push button switch SA2 is activated. Switch the contacts to stop motor A and drive motor B, driving mechanism 2.
3. Rotate the arm rod 20 around the fulcrum 21 in the opposite direction to directions C and D via the reduction gear mechanism 24, and return it to the initial position in the same way, and then open the push button switch SR2 to drive the motor B. to stop.

Furthermore, when the arm rods 19 and 20 are driven, the switch states of the push button switches SA, SB, which had been pressed by the arm rods 19 and 20, are returned to the states shown by the solid lines in Fig. 8 (,). Of course.

25 is an oblique light bulb that can be illuminated directly from the inside toward the opening 3 of the case 2, and when the lens 5 is open, it can be focused 6
This makes it possible to clearly photograph difficult-to-see fingerprints, traces, etc. on the subject 1.

26 is a light provided on the supporting partition plate 27 of the lens 5 for visually recognizing the subject 12. The light 26 is turned on when the opening/closing cover 29 of the peephole 28 provided on one side of the case 2 is opened, and when it is closed. It has a clear structure, and the case 2 can be seen through the peephole 28.
It is possible to look inside and confirm in advance whether the subject 1 is in the correct position before photographing. Reference numeral 30 is an aperture rod of the lens 5 that protrudes outward from one side of the case 2 so that an appropriate aperture value can be set. 31 is a plurality of switch groups provided on one side of the case 2, and a movable light source 4.
8 or oblique light bulb 25 can be selected including the main switch. 32 is an integrated head cover that can be opened and closed by a support partition plate 27 at the top of the case, and 33 is a plate for attaching a photosensitive material such as a film, which is pivotally supported so that it can be opened and closed. 34 is a carry grip.

Note that the above example shows the case of photographing fingerprints, traces of pen pressure syndrome, etc. on a subject with a substantially smooth surface, but by changing the type and position of the light source, it can be used not only for ordinary photographs but also for infrared photographs. It is also possible to take pictures. It is also possible to photograph traces on the side surface of a cylindrical object by rotating this photographing device.

As explained above, according to the present invention, at least two sets of light sources that illuminate the subject at different angles are arranged,
In addition, since each light source is sequentially held in the direction that illuminates the subject and moved at approximately the same speed, it is possible to take pictures when the traces such as fingerprints or pressure marks on the subject are small or thin. It has the outstanding effect of being able to always obtain clear photographs even at any time of the day.

[Brief explanation of drawings]

FIG. 1 is an explanatory plan view showing a conventional example, FIG. 2 is an explanatory plan view showing an embodiment according to the present invention, FIG. 3 is a side view of the thing shown in FIG. 2, and FIG. Explanatory diagrams showing a specific example, FIGS. 5 to 8 (a) and (b) are other embodiments showing a specific example using two sets of light sources, and FIG.
Figure 6 is an explanatory slope view showing the structure of the arm rod, Figure 7 is an explanatory cross-sectional view showing the drive structure of the arm rod, and Figures 8 (a) and (b) are explanatory circuit diagrams showing the operating circuit of the drive motor. be. -15= 2......Case 3...Open part 4.8...Light source 5...・・・・・・・・・Photo lens 6...
・・・・・・・・・・・・Focus surface 7.14・・・・・・
・Shielding plate 11.21...Fully point 13...Film 16...
・・・・・・Miniature light bulb 17・・・・・・・・・・・・Driving button 19.20・・
・Arm rod 25・・・・・・・・・Light bulb 16−

Claims (4)

[Claims] (1) A focusing surface formed at one end of the box-shaped case to allow a film to be attached and removed; an opening formed at the other end of the case to allow a subject to be attached and detached; a photographic lens provided inside the case; and the photographic lens. and two or more sets of light sources that are provided between the opening and can illuminate the subject while moving in different directions within the case, and reflect light obtained from the subject by the light sources and directly act on the focal plane through the photographic lens. and an operation push button for operating the shutter of the photographic lens and moving the light source and the shielding plate, and the shielding plate is operated in conjunction with the movement of the two or more sets of light sources. A special photographic device characterized by moving in the opposite direction. (2) Two or more sets of light sources each have a plurality of light bulbs arranged in a straight line and are placed inside the case between the subject and the photographic lens.
It rotates in an arc using an arm rod that rotates on a fulcrum on the side.
2. The special photographing device according to claim 1, wherein said arm rod is integrally provided with a shielding plate for preventing reflected light from a subject that is applied to the focal plane through a photographic lens. (3) A patent characterized in that two or more sets of light sources are moved individually at different angles, and the subject is illuminated twice or more, resulting in multiple exposure of the film provided on the focal plane. A special photographing device according to claim 1. (4) The special photographing device according to claim 1, wherein the photographic lens has an aperture that can be freely adjusted by a lever.