SU25397A1 - A device for taking combined images - Google Patents

Description

This invention is based on the well-known principle of taking combined shots by combining an image of an actor with an image of any environment, not in the form of a decoration, but only in the form of a photographic image, a picture, etc.

Two variants of the device are proposed for obtaining combined images, in which in one case the photograph is taken on two separate films, of which one must be wrapping (Imkehrfilm), and in the other directly on one negative film. During the shooting, the actor is positioned on an empty monotonous background, while the image of the required situation is obtained by means of a corresponding negative or slide installed in the imaging apparatus behind one of its two lenses. The second version of the device involves the use of a special lighting device. It is assumed that the proposed device can be used in all those cases when the construction of a scenery or a trip to nature (for example, for taking pictures of any structures at remote locations) is associated with high costs.

In FIG. 1 depicts the first variant of the proposed apparatus;

FIG. 2, 3 and 4, respectively, two negative frames obtained with this apparatus, and a positive frame printed with them; FIG. 5 - the second version of the apparatus; FIG. b - installation diagram of this device and the lighting device; FIG. 7 - Artiste silhouette; FIG. 8, 9 and 10 are the three versions of the screen that serves as the background for the artist, top view.

The first version of the proposed device is a dual movie. A clamping device 9 (Fig. 1), equipped with two lenses 3 and 4. Behind the lens 4, which must have a high aperture ratio, a negative 6 is installed, showing the required decorative environment (background) and lens 7.

The object (artist) 1 is placed on a monotonous, for example, gray (but not black) background, at which the shooting is done simultaneously by two lenses: the image given by lens 3 is printed on the usual negative film 5, and lens 4 draws the same image on the negative 6. Thanks to lens 7, negative 6 with the bright image projected on it by artist 1 is imprinted on the film in a trimmed vice. The aperture ratio of lens 4 and the width of the width of the corresponding obturator are chosen in such a way that the image of the artist 1 turns out to be sharply perverted, and this would represent a silhouette devoid of halftones. The focal lengths of objective 4 and lens 7 must be chosen so that the artist’s sipuet on film 8 is exactly the same size as the artist’s image on film 5.

As a result of shooting a negative image of the artist on an empty background (Fig. 2) on film 5, on the wrapping film 8 after the appearance and corresponding processing, a negative image of the desired situation (background) is obtained with a transparent silhouette of the artist (Fig. 3). When copying, both negatives are combined, with the result that on the positive (Fig. 4) a normally generated image of the artist (from negative 5) is obtained on the corresponding background (from negative 8).

The second variant of the proposed device is also a twin apparatus 9 (Fig. 5), but intended to receive both images on the same film 5. Behind the lens 4, which may be the same aperture as the lens 3, the turn-around image is mounted prism 2 and two mirrors 10, 10 with a lens 7 in between. Between the prism 2 and the lens 4 is set a transparency b with the image of the desired decorative environment (background). Thus, lens 3 projects the image of the artist on the front side of the negative film 5, and lens 4 draws the same image on positive 6 (Fig. 7); The very process of shooting is described below. Thanks to the prism 2, mirrors 10.10 and lens 7, the image of the bottom of the positive b with the artist’s silhouette projected onto it is imprinted on the back of the same negative film 5. The focal lengths of lens 4 and lens 3 must be chosen so that the artist’s pictures drawn by both lenses 3 and 4, were equal; prism 2 is set so that said images are exactly the same.

The very process of filming in this case does not happen as described in the first variant. Due to the fact that the images of the artist and the background are produced on the same film, they should be shot alternately. For this purpose, an illumination device is provided, allowing alternate illumination of the artist 1 and the monotonous background 14 (Fig. 6). Dp illumination of the artist serves as a lamp 12, and for illumination of the background lamp 13; These lamps are equipped with rotating flaps 15, the rotation of which is so coordinated that they open the lamps 12 and 13 alternately. The exposure of one frame falls into two periods: first, the lamp 12 opens, illuminating the artist 1 (Fig. B), and it is depicted with a lens 3 on film 5; At this moment, the lens 4 is closed by an appropriate obturator 11 and the background of 14 ng is illuminated. In the next period, the illumination of the artist 1 ceases, and the lens 3 is closed by a corresponding obturator 11, and instead the lens 4 is opened and the background 14 is illuminated, so that a dark silhouette of the artist (figure 7) is projected on the positive b (Fig. 5). The image of positive 6 with the silhouette of the artist 1, as stated above, is captured on the same film 5. In this case, the images of the artist and the background can be photographed on the same film segment or alternated as separate frames, merging into one common image only perception of the viewer when projected on the screen. In the latter case, moving the film one frame should correspond to each opening and closing of the lamps 12 and 13, i.e. doubled.

In order to avoid a noticeable displacement of the image of a moving artist relative to his silhouette, shooting when applying the second version of the device should be accelerated in all cases.

The rotation of the shutters 15 and shutters can be coordinated by means of a synchronization device with which 16 are included in the common circuit 18 with the electric motor 17.

The described shooting process can also be applied to the first version of the device (Fig. 1), with the only difference that, instead of the negative 6, a slide 6 is installed, and instead of the wrapping film 8 a usual negative film is applied. With this lens

3 and 4 will have to be opened alternately and synchronously with the lamps 12, 13. The combination of the two nggatives will take place when copying, With the creation of a dark background, room 19 (Fig. 6) can be arranged with a reduced floor, smoothly creating a dark background transition to the back curved wall. The room should be painted inside in a light tone, so that the artist could have a uniform lighted field behind when the lamp 13 is open, the length (depth) of the room should ensure that a sufficiently dark background is achieved when the lamp 13 is closed and the artist is lit by the lamp 12. With this the same purpose can be applied to the screen (Fig. 8), consisting of obliquely arranged plates: 19 installed between the light sources 12 and 13. It is obvious that when the front light source 12 is turned on, its rays will illuminate the artist 1, but will pass freely between the plate Kami 19, so that behind the actor formed a dark background. On the contrary, when the rear light source is turned on 13, the individual plates 19 will be illuminated and a light fan will be created behind the non-illuminated artist 1.

Similarly, a screen can be used (Fig. 9), consisting of rollers 20, having one half 22 dark, and the other 21 light (for this, for example, black and white high-pile barkat can serve). During the synchronous rotation of the rollers 20, illuminated by a single light source, alternate formation of a black and light foil will occur. The rollers 20 can also be made of celluloid or the like, in which case lamps must be placed inside them.

Another variant of such a screen (Fig. 10) is composed of plates 23, painted black on one side and light color on the other. By alternately turning the plates 23 around the vertical axes, either light or black surfaces will turn to the imaging apparatus, which will create the necessary changes in the background light. It is obvious that the rotation of the plates 23 (Fig. 10) is equal to / i. BUT.

as rollers 20 (Fig. 11), should occur with: -1 in synchronization with the rotation of the obturators of the shooting apparatus.

The inventors indicate that the cameraman can be redesigned so that, as a slide film 6 or negative b, you can use a normal positive or negative film depicting relevant situations, for example, a street shot. The movement of such a film should occur synchronously with the movement of the film on which the film is being shot.

The subject matter of the invention.

Claims (5)

1. A device for obtaining combined images, characterized in that in a dual camera set 9 between the bar 8 and the negative image of the situation is installed in 7, in order to obtain the same size of the situation pictures with the silhouette outline of the object, with pictures of the object on the film 5, obtained through lens 3, while lens 4 is taken with a larger luminosity and the obturator for it is provided with a slit larger than the obturator for lens 3 (Fig. 1). 2. Video change of the device according to claim 1, characterized in that, in order to obtain both images on the same film 5, a prism 2 and two mirrors 10, 10 with a lens 7 between them are installed behind the transparency slide 6 of the setting (FIG. five). 3. In the case of devices in accordance with claims 1 and 2, use a screen that serves as the background l of an object consisting of obliquely mounted plates 19 installed between the light sources 12, 13 (Fig. 8). 4. The form of the screen, according to claim 3, characterized in that. that the screen is made in the form of rotating rollers, having one half dark and the other breezy and provided with bulbs inside (Fig. 9). 5. The form of the screen according to claim 3. characterized in that it is composed of plates 23, painted in light and black color and alternately turning at a certain angle (Fig. 10) to the author's certificate of P. V. Bekhterev. R. Ya. I Lebsky, V. R. Gardin and I. B. Dund No. 2.5397 Fmg.yo f1.z. fmg.4. f-y: nffff-ft f r-niS L fjSh.