JPH0486062A - Film picture converting device - Google Patents

Abstract

PURPOSE:To simplify structure and to make the device extremely compact and light in weight by freely converting the picture of a film, which is irradiated with a point light source, to a video signal by an imaging device. CONSTITUTION:Picture information in the prescribed frame of a negative film 3 corresponding to the optical axis of an optical system 10 is projected to a charge coupling element (CCD) 9 of a video camera 8 by the point light source of a midget lamp 11 and converted to the video signal by the CCD 9. In this way, in the main body of the device, the point light source 11 and a short-focus convex lens 17, which is almost integral with the film 3 to be irradiated with this point light source and inserted into the main body of the device, are provided, and the picture of the film 3 to be irradiated with the point light source 11 can be freely converted to the video signal by the imaging device 8. Thus, a space for housing the point light source 11, film 3 and short-focus convex lens 17, etc., in the main body of the device can be reduced, the structure is simplified, and the device can be made extremely compact and light in weight as a whole.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention converts 35 mm negative and positive film images captured by a still camera into video signals using an imaging device such as a CCD (charge-coupled device), and inverts the images. [Summary of the Invention] This invention provides a film image conversion device that can display film images on a monitor TV. In the film image conversion device, the device main body includes a point light source, and a short focus convex lens that is illuminated by the point light source and is disposed substantially integrally with the film, and is illuminated by the point light source. By making it possible to convert the image information of the film into a video signal using the image pickup device, the entire device can be made even more compact and lightweight.

[Prior Art] For example, a 35 mm negative/positive film image taken with a still camera is converted into a video signal by a CCD as an image sensor, and the inverted film image can be displayed on a monitor TV. Image conversion devices are known. To explain this in detail with reference to FIG. 7.8, 50 is a film image converting device, and the main body 51 of the device includes a casing 51a located at the bottom and a rear portion of the casing 51H. The stand portion 51b and an upper portion 51c protruding toward the front side of the upper end of the stand portion 51b form a U-shape as a whole. And this device main body 5
A lamp (light source) 521 and a reflecting plate 53 are arranged in the center of the housing 51a of the housing 51.
A holder guide 54 having hook-shaped front and rear edges 54a and 54b is fixed to the upper surface of the holder a. At the center of the upper surface of these casings 51a and at the center of the holder guide 54, there are openings that are slightly larger than the size of each frame 55a of the negative film 55, and the light from the lamp 52 is transmitted to the holder guide 54.
A predetermined frame 55 of the negative film 55 in the transparent film holder 56 guided therein. a The entire surface is illuminated.

Further, a video camera 57 is provided in the upper part 51c of the main body 51 of the apparatus. Lens barrel 57 of this video camera 57
A zoom lens group 58 is disposed inside a, and a COD (charge coupled device) 59 as an image sensor is disposed at a position facing the zoom lens group 58. Then, the image information of each frame 55a of the negative film 55 in the transparent film holder 56 guided by the holder guide 54 is sequentially converted into a video signal by the CCD 59 of this video camera 57, and the above image is enlarged based on this video signal. The image of each frame 55a of the negative film 55 can be inverted and displayed on a monitor TV (not shown) as an ordinary image.

[Problems to be Solved by the Invention] However, in the conventional film image conversion device 50,
A lamp 52 such as a fluorescent tube is used as a light source, and the light beam of this lamp 52 is illuminated by a reflector 53 onto the back side of a predetermined frame 55a of the film 55, and is captured by a CCD 59 of a video camera 57 equipped with a zoom lens. As a result, the main body 51 of the device becomes large and heavy, and it is not possible to save power.

Therefore, the present invention provides a film image converting device that can achieve ultra-miniaturization, weight reduction, and low power consumption of the entire device.

[Means for Solving the Problem] In a film image conversion device that converts an image of a film inserted into the device body into a video signal using an image sensor, the device body includes a point light source and a point light source. and a short-focus convex lens disposed substantially integrally with the film, so that the image on the film illuminated by the point light source can be converted into a video signal by the image pickup device.

[Function] Inside the device body, there is a point light source, and the light is illuminated by this point light source.
The device is equipped with a film inserted into the main body and a short-focus convex lens arranged approximately on the body, and the image of the film illuminated by the point light source can be freely converted into a video signal by the image sensor, so that the main body of the device The storage space for the point light source, film, short-focus convex lens, etc. inside is small, and the extremely simple structure makes the entire device extremely compact and lightweight. Furthermore, since a point light source is used as the light source, power consumption can be reduced.

[Example] Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.

In FIGS. 1 and 2, 1 is a film image conversion device, and a transparent film holder 4 holding a negative film 3 is placed inside the straight device body 2 from the front upper corner to the center. A holder guide portion 2a that is inserted and guided obliquely is formed as an opening. A pair of reflective plates 6.6 are foldably provided obliquely on both sides of the device main body 2 below the holder guide portion 2a via respective hinges 5.

Further, an optical system 10 for converting image information of a predetermined frame 3a of the negative film 3 into a video signal is disposed within the apparatus main body 2. This optical system 10 includes a miniature light bulb (point light source) 11, an adjustment lens 12 for finely adjusting the position of the light beam of the miniature light bulb 11, and an adjustment lens 12 arranged on the bottom and front sides of the device main body 2, respectively, and 11 rays to the main body of the device 2
A CCD is used as an image sensor of a video camera 8 provided through a holder 7 in the circular opening 2b at the upper rear corner.
(Charge Coupled Device) A pair of mirrors 13 that refract the light toward the 9 side.
14, and a pair of convex lenses 15.1 arranged to sandwich the negative film 3 housed in the transparent film holder 4 inserted and guided by the holder guide part 2a.
6, and a short focus convex lens 17 which is substantially integrated with the negative film 3 via a convex lens 16. Then, the image information of a predetermined frame 10a of the negative film 10 corresponding to the optical axis of the optical system 10 is transferred to the miniature light bulb 1.
The light is projected onto a CCD 9 of a video camera 8 using one point light source, and the CCD 9 converts the light into a video signal.

Further, as shown in FIG. 1, the video camera 8 includes:
The controller 20 is connected. This controller 2
One screen D of 0 is provided with a video signal output terminal 21 to which a monitor TV 30 is connected. The monitor TV 30 displays an inverted enlarged image of a predetermined frame 3a of the negative film 3 based on the video signal.

The transparent film holder 4 is composed of a lower transparent plate 4a made of synthetic resin and an upper transparent plate 4C integrally molded so as to be bendable by a hinge portion 4b of the lower transparent plate 4a. A storage recess 4d for storing the negative film 3 is formed in the center of the lower transparent plate 4a. After storing the negative film 3 in this storage recess 4d,
By engaging a pair of projections (neither of which are shown) integrally formed on both sides of the upper transparent plate 4C with a pair of small holes formed on both sides of the lower transparent plate 4a, the negative film 3 can be separated from the upper and lower parts. The punch can be reliably stored between the transparent plates 4c and 4a, and the punch will not fall out.

The controller 20 also includes a color tone adjustment lever 22 and a contrast adjustment button 23, as shown in FIG.
．． Left/right reversal switch 24. A black and white inversion switch 25 is provided. Further, the video camera 8 is movable back and forth, left and right, and tilted with respect to the optical axis of the optical system 10 via the holder 7, which can be moved back and forth, left and right, and diagonally with respect to the circular opening 2b of the main body 2. installed on. Furthermore, as shown in FIG. 3, the video camera 8 can be attached and removed together with the holder 7 to the circular opening 2b of the device body 2, and as shown in FIG. 5, the video camera 8 can be removed and removed. By attaching the projector membrane 28 to the holder 7 attached to the circular opening 2b of the device main body 2, the projector can be used as an ultra-small projector. In addition, the brightness adjustment button 18 and 19 provided on one side of the main body 2 of the device 18 and 19 in FIG.
This is a positive film selector switch. The brightness of the miniature light bulb 11 can be changed manually using the brightness adjustment button 18, but it can be adjusted automatically while viewing the video signal.

According to the film image converting device 1 of the above embodiment, the point light source of the miniature light bulb 11 is applied to a predetermined frame 3a of the negative film 3, and the light flux is changed by the short focus convex lens 17 or the like immediately after the frame 3a, and this is converted into a video image. CCD which is the imaging surface of camera 8
By focusing the image on 9, an optical system 1 with a very simple structure can be created.
0, the image information of a predetermined frame 3a of the negative film 3 can be converted into a video signal. In the optical system 10, the image of a predetermined frame 3a of the negative film 3 is projected directly onto the CCD 9 of the video camera 8 using a point light source of the miniature light bulb 11, so that it can be easily focused. By moving the main body 2 back and forth with respect to the holder 7, the zoom ratio of the image can be changed (at this time, the brightness of the backlight is changed depending on the magnitude of the video signal). By tilting the video camera 8 with respect to the optical axis of the image, the aspect-to-width ratio of the image can be changed. Thereby, an image can be enlarged without providing a zoom lens group in the video camera 8, and the video camera 8 can be made smaller accordingly.

In this way, a miniature light bulb 11, which is a point light source, is installed inside the device main body 2.
and a short-focus convex lens 17 disposed substantially integrally with the negative film 3 which is illuminated by the miniature light bulb 11 and inserted diagonally into the device main body 2. Since the image information of a predetermined frame 3a of the film 3 can be converted into a video signal by the CCD 9 of the video camera 8, the miniature light bulb 1 inside the device body 2 can be converted into a video signal.
1. Negative film 3. The storage space for the short-focus convex lens 17 and the like can be saved as much as possible, and the entire film image conversion device 1 is ultra-compact.

It can be made lighter. Furthermore, since the miniature light bulb 11, which is a point light source, is used as a light source, it is possible to reduce power consumption, and it is possible to convert a film image into a video signal with less power.

Furthermore, as shown in FIGS. 3 and 4, the holder 7 and video camera 8 are removed from the device main body 2, and the device main body 2 is removed.
By looking directly into the circular opening 2b, the image of a predetermined frame 3a of the negative film 3 can be projected directly onto the retina of the eyeball via the optical system 10.

In addition, as shown in FIG.
By removing the projector film 28 and attaching the projector membrane 28 to the holder 7, it can be used as an ultra-small projector.

Furthermore, when using positive film, it can be used in the same way as negative film by switching the negative/positive film changeover switch 19 to the positive film side.

[Effects of the Invention] As described above, according to the present invention, a point light source is provided within the apparatus main body, and a short focal point light source illuminated by the point light source and disposed substantially integrally with the film inserted into the apparatus main body. and a convex lens, so that an image of the film illuminated by the point light source can be freely converted into a video signal by an image pickup device, so that the point light source inside the apparatus main body.

The storage space for films, short focus convex lenses, etc. can be saved, and the extremely simple structure allows the entire device to be made extremely compact and lightweight.

Furthermore, since a point light source is used as the light source, it is possible to reduce power consumption.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a film image converting device showing an embodiment of the present invention, FIG. 2 is a schematic diagram of the principle of the device, FIG. 3 is a perspective view of the device with the video camera removed, and FIG. The figure is a schematic diagram of the principle in the same case, Figure 5 is a perspective view when the same device is used as a micro projector, Figure 6 is a schematic diagram of the principle in the same case, Figure 7 is a perspective view of the conventional example, and Figure 8 The figure is a schematic side view of a conventional example. 1, . . . film image conversion device, 2 . . . device main body,
3...Film, 9...CCD (imaging device), 1
1...Figure 4

Claims (1)

[Claims] (1) In a film image conversion device in which an image of a film inserted into the device body is converted into a video signal by an image sensor, a point light source is provided inside the device body; 1. A film image converting device comprising a short focus convex lens disposed substantially integrally with the film, and capable of converting an image of the film illuminated by the point light source into a video signal using the image pickup device.