JP4215729B2 - How to shoot a sword - Google Patents

Description

  The present invention relates to a method for photographing a sword, which is capable of clearly photographing a blade such as a blade with a photographing device such as a video camera.

  Depending on the type of sword, the form of the surface from the blade to the ground, the ridge (peak), or the state of inclination or curvature is different. Yes. Moreover, the blade is usually as thin as the cutting edge and is warped as a whole. Therefore, when observing the state of the blade, such as a blade crest, use a single light from the front of the blade that you have in your hand to reduce the glare and see the overall flow. Or it is better to look at the original side, and when you look at the blade, light is applied to the blade, and when it is the ground, you will see it while turning the blade little by little so that it hits the ground Is.

  As mentioned above, when observing with the sword in hand, you can move the hand and move the position of the eyes, you can see the subtle shadow state of the sword with the human visual sense, but you can see the video camera etc. If you try to shoot with this device, if the light is a single light, you must seek the position where you can move the camera constantly while avoiding the reflection of light, you must also adjust the exposure etc. at the same time, and the reflection Since the shadows fly off at the part, and it becomes dark and does not have a shadow when it leaves, it is difficult to clearly see the blade crest with a certain spread, it is difficult to represent the preferred viewing state of the blade, and it is continuous while moving Taking pictures is a very difficult task, and with multiple lights or indirect light, although it can express a blade, it is difficult to clearly see shadows, so it is not clear. There was a hesitation.

  The present inventor noticed that there is a problem as described above in photographing a blade with a device such as a video camera, so that a clear image can be easily obtained by solving such a problem, In particular, it is an object of the present invention to provide a photographing method that can easily perform clear photographing and continuous photographing in a relatively wide surface range.

In order to solve the above-described problems, the present invention provides a light that illuminates the blade and a photographing device at an angle with respect to the blade that is the subject, and the light has a plurality of light rows along the lateral direction of the blade. Two rows are arranged in parallel so that the longitudinal direction of the blade is in the cross direction, and the two rows of light are set so that the blade is illuminated at intervals, and the diffused portion between the two light source reflecting portions is mainly photographed. It features the sword shooting method.
In this method, 3 to 10 lights are turned on for each row, and the distance between the light source reflecting portions of the two rows of light reflected on the blade is set to be about 7 to 30 cm, and the irradiation direction of the light on the blade surface and Most preferably, the angle of the focal direction of the photographic device is adjusted within the range of 30 to 120 °.
In the above, the angle formed by the focus direction of the photographing device with respect to the blade surface is preferably in the range of 30 to 90 °, and the light irradiation angle with respect to the blade surface is maintained at 30 ° or more. Is preferred.

  By illuminating the blade with an angle at a predetermined interval, preferably about 7 to 30 cm, a light diffused portion with moderate brightness without glare is moderate between the two light source reflection portions of the blade. Obtained while keeping the range. In this diffused state portion, a blade pattern or a wood-like background appearing on the ground clearly appears and can be clearly copied. The light line is arranged in the crossing direction on the blade, and can be illuminated uniformly according to the blade surface condition such as construction, so that the entire blade surface from the blade edge to the ground and the wing can be illuminated uniformly, and the brightness of the diffused part Can be made uniform, and the blade part in between can be clearly photographed. According to such a photographing method, a clear image is maintained even if continuous photographing is performed while moving the sword.

Preferred embodiments of the present invention will be described below with reference to the drawings.
As shown in FIG. 1, the sword 1 is placed on the table 2 via the support 3 so that the side surface (ground surface) of the blade is the upper surface, and the light 4 is installed on the upper side in the cutting direction. A camera (for example, a video camera) 5 is arranged above the bottom direction (corresponding to the small bottom direction of the handle).

  The light 4 is supported upward by an appropriate support 4a, but at least three unit lights having a brightness of 40 to 100 W, preferably 5 to 10, are arranged in a horizontal line perpendicular to the longitudinal direction of the blade. Preferably, it is a slightly concave curved row with respect to the blade so that the distance between each light in the row and the blade is approximated, or the unit lights on both sides slightly protrude toward the blade than the intermediate unit light, Alternatively, in the case of a linear arrangement, unit lights on both sides are formed as light rows arranged slightly brighter, and two light rows are arranged.

The above-mentioned unit lights of at least 3 lamps, preferably 5-10 lamps in one row, can be used for various types of swords, such as differences in blade width from blade edge to ridge, shape due to construction, differences in surface inclination and curved surface state. Can be used to illuminate with a uniform brightness from the blade edge to the ridge. Depending on the form of the sword, three or more lamps should be used to ensure uniform brightness in the row direction. It is preferable to selectively light up and use.
For example, flat swords need only 3 to 5 lights, and 5 to 7 lights are used for sushi and cutting blades. It can be used properly as it lights up. The brightness of the light should be used at an appropriate brightness considering the exposure status of the camera.

The positional relationship between the light 4 and the camera 5 is set so that the angle A formed by the light irradiation direction with respect to the blade surface and the focal direction of the camera is in the range of about 30 to 120 °. At this time, the position of the camera is preferably within a range of about 30 to 90 ° with respect to the blade surface. The light irradiation angle and the light irradiation angle with respect to the blade surface are preferably set to be wider than about 30 °.
Thus, in the two rows of lights, the light source reflection portions 6a and 6b (the light source reflection portions are the blade surface portions in the state where the light source is directly reflected), as shown in FIG. ) Is set so that the distance B between the centers is about 7 to 30 cm, and the distance between the light rows and the blades and the brightness of the lights in each row so that both light source reflection portions have the same brightness. It is preferable to adjust the thickness. The interval between the two light rows is not limited, but is preferably about 30 to 70 cm because a diffused state is easily obtained.

  When the angle A is obviously smaller than 30 °, the light source reflecting portions 6a and 6b are only reflected brilliantly, and a diffused portion without glare between the two portions cannot be obtained with a sufficient spread, and 120 ° If it is clearly larger than this, the entire blade will be dazzlingly reflected, and it will be difficult to identify the blades and the like. If the position of the camera and the position of the light with respect to the blade surface are clearly lower than 30 °, the blade surface is totally reflected and it becomes difficult to take a picture.

In order to observe a blade crest or the like, it is necessary to clearly represent the blade part over an appropriate length. For this purpose, the distance between the light source reflection parts 6a and 6b is 7 to 7 while corresponding to the type of the sword. It is desired to be about 30 cm.
When zooming in on a large image of a blade pattern or the like, it is preferable to set the interval to be a relatively narrow interval, and to capture a wider range, it is preferable to provide a wide interval. If the interval is too narrow, it is difficult to obtain a diffused portion sufficient for observing blades and the like, and if it is too wide, the middle part becomes dark and the blades and the like are not clearly displayed.
Any unit light can be used as the unit light. However, the unit light may be a photographing light having a light transmitting surface as a light transmitting surface and a socket-side rear surface as a reflecting surface.

As described above, the blade pattern can be photographed beautifully and clearly. Not only blades but also the background can be clearly copied. When shooting continuously while moving, it is only necessary to move the blade gently.
FIG. 3 is an example photograph (black and white) showing a blade portion photographed by the above method, and FIG. 4 is another example photograph. These color photographs are shown as reference materials. The blade crest appears in a wavy shape along the lower side of the blade surface (the lower end is the blade edge), and as clearly shown in FIG. 4 and its reference photograph, it appears in a wavy shape in a slightly dark and dark state on the blade edge side. Is a blade crest (baked blade). What is appearing in a wavy shape in a continuous, whitish and thin state inside the blade crest is a sharpened portion different from the blade crest. These states are clearly shown in the photographing according to the present invention. FIG. 5 is a photograph taken with high precision by conventional lighting, but the sharpened portion is not distinguished from the blade pattern and is only blurred in an integral manner. Moreover, as is clear from FIG. 4 and the reference photograph thereof, the ground surface state is also clearly shown.

It is the front schematic diagram which showed the apparatus of the imaging method which concerns on this invention as a layout. It is the upper surface schematic which showed typically the blade part which illuminated the 2-row light. It is a top view which shows the photographing state of the blade part of FIG. 2 with a photograph. It is a top view which shows another blade part image | photographed by this invention with a photograph. It is the photograph which image | photographed the blade part by the conventional imaging | photography method, and is a top view contrast with FIG.

Explanation of symbols

1 sword, 2 units, 3 receiver, 4 light, 4a support, 5 camera, 6a, 6b Light source reflection part, A angle, B interval.

Claims (2)

The light that illuminates the blade and the photographing device are arranged at an angle with respect to the blade that is the subject, and the light is arranged so that the light row of multiple lamps runs along the lateral direction of the blade and intersects with the longitudinal direction of the blade. A method of shooting a sword characterized in that two rows of lights are set to illuminate the blades at intervals, and the diffused portion between the two light source reflecting portions is mainly photographed. .   Turn on the light for 3 to 10 lights per row, and set the distance between the light source reflection parts of the two rows of light reflected on the blade to be about 7 to 30 cm, the light irradiation direction on the blade surface and the focus of the photographic equipment The sword photographing method according to claim 1, wherein the photographing is performed by adjusting the direction angle within a range of 30 to 120 °.