CH714797A2 - An image support device and projection system for projecting an image presentation as well as a projection method. - Google Patents

Abstract

The present invention relates to an image device (10) for use in cooperation with a projection system (200) for projecting a non-animated image presentation (1), the image device (10) comprising a plurality of images (1) recorded on at least one transparent image carrier (2); and an additional information carrier (4) including instructions to be read by the projection system (200) allowing the projection system (200) to produce sound effects and to coordinate the sound effects produced with a projection sequence of the images (1). ). The present invention also relates to an assembly comprising the image device cooperating with a projection system (200), as well as a projection method using the assembly for sequentially projecting a plurality of images ( 1) from the image device.

Description

(57) The present invention relates to an image device (10) intended to be used in cooperation with a projection system (200) in order to project a presentation of non-animated images (1), the image device (10) comprising: a plurality of images (1) recorded on at least one transparent image medium (2); and an additional information medium (4) comprising instructions intended to be read by the projection system (200) allowing the latter to produce sound effects and to coordinate the sound effects produced with a sequence of projection of the images (1 ). The present invention also relates to an assembly comprising the image device cooperating with a projection system (200), as well as to a method of projection using the assembly for the sequential projection of a plurality of images ( 1) from the image device.

CH 714 797 A2

Description Technical Field [0001] The present invention relates to an image device intended to be used in cooperation with a projection system in order to project a presentation of non-animated images. The present invention also relates to an assembly comprising the image device cooperating with a projection system, as well as to a method of using the assembly for the sequential projection of a plurality of images from the image device. .

STATE OF THE ART [0002] The invention of sound cinema at the beginning of the 20th century made it possible to synchronize between the projection of images recorded on transparent film and the simultaneous hearing of a soundtrack. For example, the invention US1840351 teaches a method for optically encoding sounds and recording them on transparent film. This process allows simultaneous recording on the same sound and image medium and presents them synchronously during the projection of an animated film.

When it comes to the projection of still images other types of methods are necessary to ensure the correspondence between the projection and the execution of sound effects. In particular, when the projected still images contain information or texts which must be presented by a person, it is impossible to accompany the presentation synchronously with a single soundtrack recorded beforehand, because the projection time of each image can vary depending on the presenter and interactions with his audience.

This problem can be solved by computer tools, such as Microsoft® PowerPoint software, which make it possible to associate sound effects with the projection of slides and in particular, make it possible to associate the execution of sound effects with transitions between images. In general, these transitions can take place at the moment desired by the presenter, without following an exact pre-established rhythm. With this type of tool, both images and sound effects must be saved in digital format. However, the technical means necessary for the projection of digital images are generally expensive and complex, in particular when good image quality is required.

Compared to a digital image projection device, the projection of images recorded on a transparent film remains an option which allows a very high quality rendering with very basic technical means, all the more when it s is about still images.

One way to associate still images recorded on transparent film with the execution of multimedia effects (including sound effects) on a portable computer device, is described in US2017 / 0363947. Here, the transparent images are mounted on a frame which contains identification elements so that the portable device can recognize which image is projected at each moment and execute multimedia effects associated with the images according to an accompanying application previously installed on the portable device. The identification elements proposed in this document can be very varied, ranging from radio tags (RFID) to optical recording in the form of color or barcode and even using the projected image itself, which can be identified by the portable device using its photo camera and image recognition software that would be part of the accompanying application. In all cases, these technical means are used only for the identification of images by the portable device. The recording of multimedia effects (including sound effects), as well as the instructions indicating how and in what order to perform them, remains the exclusive responsibility of the accompanying application installed independently on the portable device.

However, there are a wide variety of portable devices, such as phones, tablets and laptops. These devices are manufactured by different manufacturers with different technologies and their useful life is typically 2 years, before falling into obsolescence. This requires a great effort of maintenance and a permanent update of the support applications according to the concept proposed by US2017 / 0363947. If at some point these updates stop, the projection of these images with the original multimedia effects may no longer be possible.

Brief summary of the invention [0008] An objective of the present invention is to propose a technical solution making it possible to permanently record both the images of the presentation and the sounds associated therewith, or at least the images and the instructions according to which sound effects prerecorded on an external library must be executed. Such a solution preserves the material integrity and the collectable value of a presentation composed of non-animated images recorded on a transparent support and sound effects associated with their projection.

According to a first aspect, the image device of the invention comprises a series of images recorded on a transparent support, such as a filmstrip.

The images can be mounted on a rigid frame, which could possibly serve as a frame during the projection. This rigid frame or frame does not necessarily have to be made in one piece. A series of images mounted on freestanding frames such as a slide collection could also be used. The shape and size of the images do not play an essential role in the present invention. A square or rectangular format with

CH 714 797 A2 possibly rounded angles, or even a circular format would be typical formats. As for the size of the images on the transparent support, it would typically be between 2 mm and 10 cm at most.

According to a preferred embodiment, the image collection can be recorded on a continuous strip of cinema film or standard format slide, such as 35mm, 16mm or 8mm. As in animated cinema, the perforations on the edge of the film can facilitate the advancement of the film on a projection system to move from one image to the next. The projection frame, allowing to project only one image at a time would in this case be part of the projection system.

Advantageously, but not necessarily, the transparent film strip containing the images can be fixed in a cassette, reel or other rigid frame which could have the functions of:

- protect the film during use and storage;

- facilitate its installation in the projection system;

- mechanically facilitate the advancement of the film during the presentation; or

- serve as physical support for an additional element containing information necessary for the execution of sound effects during the presentation.

In the case of separate images mounted on one or more rigid mounts described above, these rigid mounts could also integrate some of these functions.

According to a second aspect, the image device of the invention comprises an additional information medium which is intended for a projection system equipped with a microprocessor. This data would contain at least instructions to the microprocessor on the order and how to execute various sound effects associated with the projection of the images recorded on the transparent support.

In general, the sound effects to be executed are accessible to a projection system equipped with a microprocessor in the form of a digital library of sound files (library of sound effects). This library can be saved on a fixed memory integrated into the projection system, or on an external memory with a standard connection interface, for example USB. The library can also be on an external server, accessible by wireless or internet communication, on a portable device or any other computer medium having a possible communication interface with the projection system equipped with a microprocessor which obtains the execution instructions. from the code stored in the additional information carrier.

According to a preferred embodiment, the sound effects library would also be integrated into the support for additional information associated with the transparent images.

In addition, the data recorded in the image device can also contain accessory information such as title, authors, edition, bibliographic references, a full digital copy of the content of the presentation including the images, or even multimedia files. or other content associated with the presentation.

The data carrier associated with transparent images and containing instructions intended for a projection system equipped with a microprocessor can be of different types. Those skilled in the art would find in the state of the art a large number of possible solutions for achieving it. Typically, the data can be recorded on an electronic chip, on a magnetic tape or in optical format (optical element) through one or two-dimensional bar codes, colors or any combination of these elements. In this sense, certain preferred embodiments will be presented later by way of example.

Depending on its nature, the additional information medium can be physically integrated into a rigid frame containing the transparent images. Alternatively, it can be recorded optically on the same transparent support as the images, for example, on a side strip of the film or forming part of a projected image.

All information relating to the execution of sounds during projection can be contained in one place; for example on the first image of the collection, or on the contrary, be distributed on the different images or their frames.

Reading the image device as well as projecting an image presentation can be carried out using a projection system or a combination of devices comprising at least:

- an image projection function on transparent support;

- a function for reading additional information contained in the associated medium;

- means of identifying the projected images;

- a sound library in digital format (integrated into the playback device, recorded on the image device, or recorded on an accessible external medium);

- a microprocessor capable of executing the instructions recorded on the support of additional information;

- speakers or other means of performing sounds.

Advantageously, all of these functions can be contained in a single projection system dedicated to reading the image device. Other advantageous characteristics of such a projection system are presented later by way of example of embodiments.

CH 714 797 A2 It is clear that, in order to properly perform the sound effects of the presentation, the microprocessor of the projection system requires information to be obtained on the image which is projected at a given time and when transitions between images take place. Several means can be used for these purposes. It is possible, for example, to provide each image with an identification element which can be: radio tags (RFID), magnetic strip elements, optical elements such as colors or bar codes, or even use a digital camera combined with a recognition code to directly identify the projected image.

More simply, according to a preferred embodiment, when the images are recorded with a single sequential presentation order, for example on a film strip of standard format cinema, it suffices to provide the projection system with a system that detects the transitions forward or backward on the projection of the series of images, to determine exactly by a counting algorithm, which image of the presentation is projected at a given time.

Once the microprocessor of the projection system has information on the identity of the projected image, it can use the instructions on the execution of the associated sound effects. These sound effects can in general be: accompanying music, human voices that tell a story, for example, recordings of sounds of nature (for example, waves, rain, thunder, animal sounds), or sounds of synthesis. Each of these sound effects can be recorded independently in digital format in the library to which the microprocessor has access. The instructions recorded on the support accompanying the transparent images can indicate to the microprocessor to execute these sound effects according to a program indicating for example:

- the transition between images which activates the execution of a sound effect;

- the transition that ends it;

- instructions for a sound effect to be looped until a specific transition occurs;

- instructions for a sound effect to repeat itself with a certain periodicity as long as it is active between two determined transitions;

- fade-out or crescendo effects which accompany the sound effects during the transitions between images; or

- instructions for several effects to be mixed and executed at the same time; for example: accompaniment music in a loop, a narrative voice that tells only once a piece of history associated with the projected image, a natural noise (for example waves, which is repeated periodically during the projection).

These types of instructions are just examples and do not represent an exhaustive list of all types of commands that can be sent to the microprocessor for the execution of sound effects.

Although the image device of the present invention is particularly designed to facilitate the presentation of its content at a variable rate by a presenter who can interact with an audience, it is obvious that an autonomous mode of presentation would be feasible, by providing the projection system with a motor that can be controlled by the microprocessor and finally by instructions programmed in the information medium of the image device.

Several embodiments of the invention are presented in the figures and in examples described in more detail below.

Brief description of the figures [0029] Examples of implementation of the invention are indicated in the description illustrated by the appended figures in which:

fig. 1 shows a preferred embodiment in which a collection of images is recorded sequentially on a transparent support consisting of a single strip of cinematographic film; fig. 2 shows an embodiment of the image device where the film strip containing the images is mounted in a rigid cassette, having an opening which serves as a frame for the images; fig. 3 shows an alternative embodiment of the imaging device; fig. 4 shows various embodiments for optical coding of the instructions intended for the microprocessor of the reading apparatus; fig. 5 shows an embodiment of a projection device of a projection system for the image device; Figures 6 and 7 show possible embodiments of a projection system for the imaging device, with its various components and indicating their interactions;

CH 714 797 A2 fig. 8 shows an embodiment of an assembly comprising a projection system and an image device; and fig. 9 shows several possible embodiments of a system for controlling the progress of the transparent support of the images in a projection system.

Example (s) of embodiment of the invention [0030] FIG. 1 shows a preferred embodiment in which a collection of images 1 is recorded sequentially on a transparent support 2 consisting of a single strip of cinematographic film. Advantageously, this film can be of a standard format such as 35 mm, 16 mm or 8 mm.

[0031] FIG. 2 shows an embodiment of an image device 10, in which the transparent support 2 consists of a single strip of cinematographic film, mounted on a cassette 3 made of a rigid material, typically plastic. On the cassette 3 is integrated the additional information carrier 4, the additional information being intended for the microprocessor of the reading device. In the example of fig. 2, this support is an electronic chip 4a, provided with electrical contacts and containing information relating at least to the manner and the order of execution of sound effects associated with the projection of the images 1 recorded on the transparent support 2.

Advantageously, the cassette of FIG. 2 has two reels 5 to which the film is attached by its two ends. These coils can be rotated by an external mechanism that adapts to the notches 6 centered on the axes of the coils. By rolling the reels 5 in one direction or the other, the film 2 can be advanced or rewound in the cassette. An opening 7 adapted to the format of the images 1, serves as a framework allowing the exposure of only one image at a time.

[0033] FIG. 3 shows another possible embodiment of the image device 10. Here, the transparent support 2 has been cut according to the format of the images 1. The images are mounted on a rigid frame 8, on which the support is also integrated. additional information 4, intended for the microprocessor of the reading apparatus. In the example of fig. 3, this support also consists of an electronic chip 4a, provided with electrical contacts.

[0034] FIG. 4 shows other alternative embodiments of the additional information medium being intended for the microprocessor of the reading device. More particularly fig. 4 shows cases where the additional information is encoded optically on the same transparent support 2 which contains the images 1 of the presentation. In FIG. 4A, the additional information carrier comprises a bar code or a two-dimensional matrix 4b, arranged on an image of the same format as the images to be projected 1. Advantageously, this image comprising the additional information carrier 4b may be the first of the collection, so that all the instructions on the presentation are transmitted to the microprocessor of the reading device in a first moment, before starting the presentation.

Reading such a code 4b can be done in different ways. One possibility is to provide the reading device with a laser scanner system or, alternatively, with a digital camera capable of capturing the image containing the code 4b and transmitting it to the microprocessor of the reading device. Such a camera can be arranged inside the reading device, and directly aim the frame of the image on the film 2, or alternatively, be oriented towards the outside, so that it can capture the image projected by the projection apparatus on a wall or screen.

In order to increase the density of information contained in the pixel matrix of the additional information medium 4b, one can take advantage of the poly-chromaticity of the transparent film to encode information also in the form of color. in each element of the matrix or pixel. A digital camera can easily distinguish a variety of colors far greater than 256 shades, or one byte of information per pixel. It would thus be possible to encode several Megabytes of digital information of optical form on a single image. This would save not only instructions for the microprocessor, but also elements of the sound effects library that would be executed during presentation on the same filmstrip as the images. Of course, it would be possible to distribute this information over several images which would precede the images of the presentation itself. Several strategies could be implemented to preserve the content of this optically recorded digital information; in particular by using redundancy of information, as well as reference and correction keys distributed over the matrices.

In FIG. 4B, an alternative is presented in which the additional information medium includes optically coded information 4c which is distributed on the lateral strip of the film. Thus, rather than carrying out an initial reading of all the instructions for presentation, each image could be associated with the only instructions which will be executed during its projection or possibly during the following transition.

Reading a distributed code as in fig. 4B, would preferably be done with an internal arrangement of the digital code reading system, that is to say, without a simultaneous projection of the image and the code on the presentation screen.

CH 714 797 A2 [0040] FIG. 5 shows an example of a projection device 100 for a projection system intended to project images 1 from the image device 10. The projection device 100 has a light source 101, which could advantageously be a LED lamp or other type of lamp based on low consumption technologies such as nano-active fibers. The typical power of a lamp of this type would be in the range of 100 mW to 50W, more particularly, between 0.5 and 5W.

In general, several optical elements 102 such as lenses or mirrors are deployed to efficiently route the light from the lamp to the transparent image 1. The projection device 100 is also provided with a system optical imaging (focusing optics) 110, typically consisting of several groups of lenses, 111 and 112. The focusing optics 110 can be moved along the axis of propagation of light in order to adjust the plane of focusing image 1 on a wall or screen, thus obtaining a sharp image 105. A first group of so-called zoom lenses 111, makes it possible to adjust the aperture of the beam and thus the size of the projected image 105. For to do this, one or more lenses from this group 111 must be able to be moved in the device 110. A second group of lenses 112, typically integral with the device 110, serve to focus the image 105 on the wall or screen. year of projection.

[0042] FIG. 6 shows an embodiment of a projection system 200 intended for reading the image device 10 and for projecting an image presentation 1, as well as for producing sound effects in a manner coordinated with an image projection sequence 1. The main subsystems and elements constituting the projection system 200 are shown there by way of example.

The projection system 200 is equipped with the image projection device 100, as well as a mechanical interface (reception device) making it possible to position the image device 10 relative to the projection device 100.

Advantageously, the projection system 200 can be provided with an electric motor 203 which advances in a controlled manner the images 1 of the presentation, thanks to an appropriate mechanical transmission system 204 (electric motor 203 and mechanical transmission system 204 form a drive system). In the example of fig. 6, this transmission system can use the notches 6 available on the coils of the imaging device 10. Alternatively, the transmission could act by a spur on the perforations of a standard format cinematographic film, or cause the movement of a wheel which advances the film by simple rubbing.

The motor 203 may include a direct current motor or a stepper motor. In all cases, the drive system can transmit directly to the microprocessor of the reading device 201 (in other words, transmit to the microprocessor the identity of the projected image 1), information 230 on the progress of the presentation. , allowing it to identify unequivocally the image that is projected at each moment.

Advantageously, the projection system 200 can also be provided with a system for receiving a wireless signal 205 to be controlled remotely with a remote control 300. The wireless system 205 can be based on an optical transmission, for example using a protocol for communication by an optical signal in the infrared spectrum. Alternatively and preferably, the wireless system 205 can also receive an RF signal from the remote control 300, typically in the frequency band of GHz. In the example of fig. 6, the wireless system 205 directly controls the movement of the motor 203 through a signal 231. In the case of a direct current motor, this signal 231 can consist simply in activating a switch which allows the supply of the engine for a while.

A microprocessor 201 integrated in the projection system 200 receives instructions 232 recorded in the additional information medium 4 of the image device 10 on the manner and the order of execution of sound effects 233 associated with the images. 1 of the presentation. In general, the sound effects 233 are recorded in a library 202 which can be integrated into the reading device, as in the case of FIG. 6; but which could also be recorded on the information medium 4, or recorded on an external medium accessible to the microprocessor 201.

According to the instructions 232 on the manner and the order of execution of sound effects 233 of the library 202, and having the information 230 on the image being projected, the microprocessor 201 makes the sound 234 execute corresponding to each stage of presentation on a 206 sound enclosure which may be external, or be advantageously integrated in the projection system 200, as in the case of FIG. 6.

[0049] FIG. 7 shows an alternative embodiment of the projection system 200 intended for reading the image device 10. In this example, the additional information medium 4 comprises information optically coded in the same transparent medium as the images 1. L optically coded information 4 is projected as a sharp image 105 on a wall or screen. Advantageously, the optically coded information 4 can also contain the library of sounds in digital format 202 which the microprocessor uses for the execution of the sounds 234 associated with the images of the presentation.

In the illustrative example of FIG. 7, a digital camera 207, installed on the projection system 200 and oriented towards the projection screen, captures the image 105 of the optically coded information projected and sends it to the microprocessor which then decodes the instructions 232 on the manner and order of execution of the digitized sound effects 233 and stores them in an internal memory for execution during the presentation.

CH 714 797 A2 With respect to checking the progress of the presentation, the example of FIG. 7 presents an alternative to the system of FIG. 6. Here, the wireless communication system 205 interacts directly with the microprocessor through a digital signal 231 and it is the latter which consequently controls the motor 203, through a communication channel 235.

Advantageously, all the electronic components (including the projection lamp 101 and the advancement motor 203) of the projection system 200 of the image device 10, can be entirely powered by accumulators or rechargeable batteries 250 integrated in the device.

Battery or accumulator operation, combined with remote control, gives the projection system 200 great flexibility of use and ease of installation in a room which is not necessarily equipped for regularly performing projected presentations. , such as a children's room, a camping car or simply an outdoor rental with a projection wall.

These advantages can moreover be implemented in a simplified projection system 400, as shown in FIG. 8. The projection system 400 does not have a microprocessor capable of receiving or executing the instructions recorded in the additional information medium 4 of the image device 10. In fact it can be adapted to the simple projection of images without sound effects. The images 1 can be those of an image device 10 as described in the present invention, or simply a collection of images recorded on a transparent support 2 without additional digital information. Advantageously, the images 1 can be recorded sequentially on a transparent support 2 consisting of a single strip of cinematographic film of a standard format such as 35 mm, 16 mm or 8 mm. Also, this film can possibly be mounted on a frame or cassette of a rigid material as shown by way of example in FIG. 2.

In a particular example, the simplified projection system 400 illustrated in FIG. 8 includes:

- A projection device 100 made up of optical elements such as lenses or mirrors like that described by way of example in FIG. 5;

- LED lighting 101, with a power typically in the range of 100 mW to 50W, more particularly, between 0.5 and 5W;

- A system 205 for receiving a wireless signal emitted by a remote control 300 making it possible to control at least one electric motor 203 of the projection system 400;

- a mechanical transmission system 204 adapted so that the movement of the motor 203 causes the images of the presentation to transition into the projection system;

- a power source such as an accumulator or rechargeable battery 250, which can power all the electronic components of the projection system 400.

When the transparent support 2 of the images 1 of the presentation comprises a single continuous strip of cinema film of standard format; the transmission system 204 can act by a drive on the perforations of the film, or cause the movement of a wheel which advances the film by simple friction.

Advantageously and even in the absence of a microprocessor capable of receiving or executing complex instructions, for example for the execution of sounds, the simplified projection system 400 can be provided with electronics 210 controlling the motor 203 to ensure that, upon receiving a signal from the remote control, the motor will advance (or reverse) an image exactly the medium of the presentation.

In the case of a stepping motor, the electronics 210 can for example send a sequence of signals to advance the motor 203 by a predetermined number of steps, corresponding to the advancement of an image.

In the case of a DC motor, the electronics 210 can interrupt the power supply to the motor after a predetermined time interval, corresponding to the advancement of an image. However, as the rotation speed of a DC motor generally depends on the supply voltage, and this voltage can vary depending on the charge of the batteries 250, it would be preferable to provide the projection system 400 with a control device 211 which sends the engine control electronics 210 feedback on the progress of the transparent support 2.

The progress control 211 can be implemented in many ways. Fig. 9 gives some examples.

In one embodiment shown in FIGS. 9A and 9B, it is possible to optically detect the passage from one image to another thanks to a positioning mark 260 aligned with each image (FIG. 9A).

[0062] FIG. 9B shows a plane perpendicular to the plane of the film 2 (line B-B 'in fig. 9A). According to the embodiment presented by way of example in FIG. 9B, the passage of the positioning mark 260 can be carried out with a photodetector 262 suitably positioned where the image 1 is well framed in the projection system. The light detected by the photodetector 262 when the image is correctly positioned, can come from an additional source such as a laser suitably placed in front of the photodetector 262 and having to pass through the film 2 to reach the photodetector 262. Advantageously and more simply, the light received by the photodetector 262 through the positioning mark 260 can also come from the own lighting 101 of the projection system.

FIG. 9C shows a plane perpendicular to the plane of film 2 (line C-C in fig. 9A). Fig. 9C shows another embodiment of the advancement control system 211 based on the detection of an electrical contact between

CH 714 797 A2 two metallic elements 263 and 264. The transparent film 2, generally consisting of a polymer substrate of dielectric nature, the metallic elements 263 and 264 could establish an electrical contact only when a perforation of the film 261 found in between. As the perforations 261 of the film 2 are also regularly aligned with the images 1, the progress control system 211 can detect the precise progress of an image by counting the number of electrical contacts established between the elements metallic 263 and 264.

Claims (26)

More simply, the progress control system 211 could be based on an electronic system for counting the number of revolutions made by the motor 203 or any other element of the mechanical transmission system 204. Of course, such a progress control system can also be implemented in a projection system equipped with a microprocessor and integrating all the functionalities described in the present invention. claims 1. Image device (10) intended to be used in cooperation with a projection system (200, 400) in order to project a presentation of non-animated images (1), the image device (10) comprising: a plurality of images (1) recorded on at least one transparent image medium (2); and an additional information medium (4) comprising instructions intended to be read by the projection system (200) allowing the latter to produce sound effects and to coordinate the sound effects produced with a sequence of projection of the images (1 ). 2. The image device according to claim 1, in which the additional information medium (4) further comprises a digital library (202) of sound effects including sound effects) intended to be produced by the projection system (200). 3. The image device according to claim 1 or 2, in which the additional information medium further comprises instructions intended to be read by the projection system (200) allowing the latter to independently control the sequence for projecting images (1). 4. The image device according to one of claims 1 to 3, wherein each image (1) of said plurality of images is recorded on an independent image medium (2). 5. The image device according to one of claims 1 to 3, wherein said plurality of images (1) is recorded on a single image medium (2). The image device according to claim 5, wherein the image carrier (2) comprises a continuous strip of standard format cinema film. 7. The image device according to one of claims 4 to 6, in which the image support (2) is mounted in a rigid frame (3, 8). 8. The image device according to claims 6 and 7, in which the rigid frame comprises a cassette (3) having an opening (7), the strip of film being arranged in the cassette (3) so that an image (1) can pass sequentially in front of the opening (7). 9. The image device according to one of claims 1 to 8, in which the additional information carrier (4) comprises one of the following carriers, alone or in combination: an electronic chip, a magnetic strip, a barcode with one or more dimensions or colors. 10. The imaging device according to one of claims 7 to 9, in which the additional information carrier (4) is included in the rigid frame (3, 8). 11. The image device according to one of claims 1 to 8, in which the additional information carrier is integrated into the image carrier (2). 12. The image device according to claim 11, wherein the additional information medium comprises an optical element. 13. The imaging device according to claim 12, wherein the optical element comprises a bar code. 14. The imaging device according to claim 13, wherein the bar code codifies the additional information according to the transparency of the bar code. 15. The imaging device according to claim 14, wherein the bar code has more than two levels of transparency. 16. The imaging device according to claim 15, wherein the levels of transparency are obtained using at least two different wavelengths of the visible or near infrared spectrum. 17. Assembly comprising the device according to one of claims 1 to 16 cooperating with a projection system (200, 400) comprising: a projection device (100) comprising a magnification optic (110) and a lighting device (101); CH 714 797 A2 a receiving device configured to receive the image support (2), and a drive mechanism (203, 204) configured to move the image support (2) when the latter is received in the receiving device and aligning one image at a time in front of the optical assembly (110) so as to project this image. 18. A projection method using the assembly according to claim 17, comprising: providing the image support (2) in the receiving device; moving the image support (2) using the drive mechanism (203, 204) so as to project the plurality of images (1) sequentially. 19. The method according to claim 18, wherein the projection system (200) comprises a microprocessor (201) configured to receive the instructions from the additional information medium (4) and a sound transducer (206); the microprocessor (201) controlling the sound transducer (206) and the drive mechanism (203, 204) so as to produce the sound effects and coordinate the sound effects produced with a sequence of projection of the images (1); and in which the method comprises: transmit to the microprocessor information on the identity of the image (1) projected according to the projection sequence; and using the additional information to control the sound transducer (206) so as to produce the sound effects and coordinate the sound effects produced with the image projection sequence (1). 20. The method according to claim 19, wherein the additional information medium (4) comprises a digital library (202) of sound effects; and in which the method comprises accessing the library and executing the sound effects according to the sequence of projection of the images (1). 21. The method according to claim 19 or 20, wherein the information on the identity of the projected image (1) is transmitted to the microprocessor (201) by the drive mechanism (203, 204) of the support (2) . 22. The method according to claim 18 or 20, wherein in which the information on the identity of the projected image (1) is transmitted by the a progress control device (211) provided in the projection system ( 200, 400). 23. The method according to one of claims 19 to 22, wherein the projection system (200) comprises a reception system (205) of a wireless signal configured to receive a control signal intended to control the mechanism of 'training (203, 204); and wherein the method includes remotely controlling the image projection sequence (1) using a remote controller (300) configured to transmit a control signal to the reception system (205). 24. The method of claim 23, wherein the control signal is sent to the microprocessor (201) which in turn controls the drive mechanism (203, 204), or wherein the control signal is sent directly to the mechanism drive (203, 204). 25. The method according to one of claims 19 to 24, wherein said instructions include at least one of the following indications: a transition between images (1) activating the execution of a sound effect; a transition between images (1) ending a sound effect; looping a sound effect until the occurrence of a determined transition between images (1); repeating a sound effect with a given periodicity between two determined transitions between images (1); produce a fade-out or crescendo effect to accompany the sound effects during a transition between images (1); execute and mix several sound effects simultaneously. 26. A projection system (400) comprising :, a projection device (100) comprising a magnification optic (110); a lighting device (101); a receiving device configured to receive an image medium (2) and to position the image medium (2) relative to the projection device (100); a drive mechanism (203, 204) of the support (2) for driving the transition of the images (1) image support (2); and a power source (250) for powering the lighting device (101) and the drive mechanism (203, 204).