JPH0569346B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a TV viewer that images a print, slide, or strip of negative or positive film with a TV (television) camera and visualizes it on a monitor television.

"Prior Art and its Problems" A conventional slide projector projects a positive image slide onto a screen. Slides are made by cutting developed reversal (positive) film one frame at a time and fixing them in a frame.
However, since it is difficult to optically invert a negative to a positive using a slide projector, negative film could only be projected in its negative state.

One of the major problems with conventional products is that they cannot project prints. However, the film that most general users use for camera photography is not a reversal film for slides, but a negative film for printing. Therefore, in order to view the negative film image on a screen, a separate slide had to be prepared.

Furthermore, this type of slide projector requires hanging the screen and darkening the room, making it cumbersome to use.

``Object of the Invention'' The present invention has been made in view of the above-mentioned problems of the prior art.It is particularly possible to visualize prints, and moreover, it is possible to visualize not only prints but also films and slides using the same light source. The purpose is to obtain a TV viewer that can be visualized regardless of the positive image.

"Summary of the Invention" The present invention includes a print holding surface that holds a print, a light source that illuminates the print holding surface, and an imaging device that receives a reflected light flux from the print holding surface.
A film holding surface and a slide holding surface are provided at different positions in the optical axis direction between the print holding surface and the imaging device, and the focusing position of the imaging device is adjusted between the print on the print holding surface, the film holding surface and the slide holding surface. and a focusing distance adjusting means for selectively matching the holding surface, wherein the imaging device is a light beam from a light source, and
The light flux reflected from the print placed on the print holding surface, the light flux reflected from the print holding surface on which no print is placed and transmitted through the film, or the light flux reflected from the same print holding surface and transmitted through the slide is received, and the print, film or The feature is that the images of the slides are output to a TV monitor.

“Embodiments of the invention” The present invention will be explained below based on illustrated embodiments.

FIG. 1 is a perspective view showing the internal structure of an embodiment of the TV viewer of the present invention, FIG. 2 is a perspective view showing the external appearance of the same embodiment, and FIG. 3 is a plan view showing the internal structure of the same embodiment. be.

This TV viewer includes a print holding case 20,
It is equipped with a film feeding device 30 and a slide feeding device 60, and can visualize any of prints, films, and slides. The assembly of these components into a cabinet 10 is shown in FIG. The details will be described later, but 11 is the slide case insertion slot;
12 is the film insertion slot, 13 is the eject button, 1
4 is the power switch, 15 is the frame return button, 16 is the frame forward button, 17 is the framing adjustment knob, 18
is the vertical/horizontal position switching lever. 19 is
This is a monitor TV that displays images taken by the imaging device 25. As the monitor TV 19, a television used in general homes can be used.

The print holding case 20 is attached to the cabinet 10.
It is formed so that it can be put in and taken out horizontally. Furthermore, two fluorescent tubes 22, 22 are disposed in parallel on the left and right upper sides of the print holding case 20 in the stored state as a light source for illuminating the print holding surface 21. Furthermore, a first mirror 23 is disposed above the print holding surface 21 so as to guide the reflected light beam from the print holding surface 21 backward in parallel with the print holding surface 21, and the first mirror 23 receives the light beam at the rear. A second mirror 24 that reflects parallel to the print holding surface 21
is installed. An imaging device 25 is provided so that a photographic lens 26 receives the light beam reflected by the second mirror 24.

The photographing lens 26 includes a second mirror 24 and a first mirror.
An imaging optical path is formed that passes through the mirror 23 and reaches the print holding surface 21, and focuses on the print P on the print holding surface 21.

The print holding surface 21 is a white reflective plate, and when a print is placed thereon, the reflected image of the print enters the imaging device 25, but when there is no print, the print holding surface 21
A white reflected image of is incident on the imaging device 25. A print presser is attached to this print holding surface 21 to determine the position of the print P or to press the periphery thereof.

The imaging device 25 has a focusing distance adjusting member 27 immediately in front of the photographing lens 26 . This focusing distance adjusting member 27 includes two close-up lenses 27a and 27b attached to a rotatable semicircular plate, and is rotatably driven by a motor 28, and automatically adjusts the focus distance according to the print, film, or slide. The focal length of the photographic lens 26 is adjusted by rotating the lens 26. Furthermore, an image sensor (for example, a CCD) (not shown) is provided in the image pickup device 25, and the light flux that has passed through the focusing distance adjustment member 27 and the photographing lens 26 forms an image on this image pickup device, and the video output is displayed on the monitor TV 1.
9. This image sensor has a rotary drive mechanism 2.
9, it can be rotated to switch between vertical and horizontal positions.

Next, the operation for viewing the print P will be explained. Pull out the print holding case 20, place the print P on the print holding surface 21, press it down with a print presser, and push the print holding case 20 in. Then, a detection switch (not shown) detects this, and the control circuit receives this and sets the focusing distance adjusting member 27 for printing. In this embodiment, since the focal position of the photographic lens 26 is aligned with the print P, there is no need for a close-up lens, and the front of the photographic lens 26 is simply opened. Further, the control circuit turns on the fluorescent tube 22 to display the image of the print P on the monitor TV 19.
When the print holding case 20 is pulled out, the control circuit turns off the fluorescent tube 22 and the monitor TV 19.

Next, the film feeding mechanism 30 will be explained. A film feed mechanism 30 and a slide feed mechanism 60 are provided between the first mirror 23 and the second mirror 24.

The film feeding mechanism 30 includes a vertically long film insertion slot 32, a first mirror 23, a second mirror 23, and a second mirror 23.
An introduction guide 33 that extends substantially parallel to the optical axis (hereinafter referred to as "optical axis") of the photographing lens 26 extending between the mirror 24, a holding guide 35 that extends orthogonally to the optical axis, and both guides 33 that are orthogonal to each other. ，
It has a film guide member consisting of a curved guide 34 that smoothly connects the film guides 35 and 35.

The insertion port 32 and the guides 33, 34, 35 are
It is formed to hold and guide the film F in an upright state, and the insertion opening 32 is fitted into the film insertion opening 12 of the case so as to be vertically movable. Guide 3
3 and 35 have a U-shaped cross section surrounding the perforation portions on both sides of the film F at the top and bottom, and the holding guide 35 has an aperture having the same shape as the film screen size at a position whose center coincides with the optical axis. 36 is opened (see Figure 8). This aperture 36
The surface on the first mirror 23 side becomes the film holding surface. Further, a slide holding surface 53 for holding the slide S is formed on the rear surface of the aperture 36.

The introduction guide 33 is connected to the insertion port 32, and the holding guide 35 is attached to the support base 37 so as to be movable in a direction perpendicular to the optical axis.
The holding guide 35 is a curved guide 3 that bends elastically.
connected by 4. Furthermore, the holding guide 35 is slightly moved left and right via a horizontal framing motor 38 and a speed reduction device attached to the support base 37 (see FIG. 3).

In addition, the film guides 33, 34, 35 have
A driving roller 39 and a driven roller 40 are provided on the introduction guide 33 near the insertion opening 32 so as to sandwich the perforation of the film F on the running surface of the film F, and a driving roller 41 and a driven roller 42 are provided on both sides of the aperture 36. , and a driving roller 43 and a driven roller 44. On the shaft of each drive roller 39, 41, 43, a pulley 39a (see Fig. 1), 41a,
43a is fixed (see FIG. 8).

A film feed motor 45 is attached to the support base 37 near the drive roller 39, and two pulleys 45a and 45b are fixed to its rotating shaft.
Further, on the support base 37, a tension arm 46 is rotatably mounted around the rotation axis of the film feed motor 45.
is provided, and two pulleys 46a and 46b are integrally and rotatably attached to the tip of the tension arm 46.

A belt 47 is connected between the pulley 45a of the film feed motor 45 and the pulley 39a of the drive roller 39.
are hung in parallel, and a belt 48 is hung in parallel between pulley 45b and pulley 46a. A belt 49 is hung around the pulleys 41a and 43a of the drive rollers 41 and 43, and this belt 49
It is also wrapped around 6b. Therefore, the drive rollers 39, 41, and 43 are simultaneously driven to rotate in the same direction by the film feed motor 45, and press the perforation portion of the film F between themselves and the driven rollers 40, 42, and 44, respectively, so that the film F is moved along the film guides 33, 34, and 35. Note that the tensioning arm 46 is rotationally biased by a tensioning spring 46a that constantly tensions the belt 49.

Inside the film insertion opening 32, as shown in FIGS. 10 and 11, there is a film insertion detection switch 50 consisting of a movable contact 50a and a fixed contact 50b that face each other across the running surface of the film F and are in constant contact with each other. It is provided.

As shown in FIGS. 13 and 14, below the aperture 36, a leading edge detection switch 51 for detecting the leading edge of the film F and a trailing edge detection switch 52 for detecting the trailing edge of the film F are provided. These detection switches 51 and 52 have movable contacts 51a and 52a and fixed contacts 51 and 51a and 51a and 52a and 51a and 52a and 51 and 52a and 51a and 52a and 51a and 52a and 51a and 52a and 51a and 52a and 51a and 52a and 51a and 52a and 51a and 52a and 51a and 52a and 51a and 52a and 51a, and 52a, and 52a, respectively, and 51a, 52b, which faces the left end and the right end of the aperture 36 across the running surface of the film F, respectively.
b, 52b, and these contacts 51a, 51b
Whether the film F intervened between the contact points 51a and 51b or between the contacts 51a and 52b (that is, the contact points 51a and 51b,
The film insertion detection switch 50 is turned off/on depending on whether or not a and 52b are electrically connected.The film insertion detection switch 50 is also the same in principle. Further, these contacts are formed in positions and sizes that do not fit into the perforation of the film.

The support base 37 is screwed into and supported by a screw screw 54 rotatably attached to the body. A pinion gear 55 is fixed to the tip of this screw screw 54, and this pinion gear 55 is connected to a vertical framing motor 56 attached to the body.
The pinion gear 57 is engaged with the pinion gear 57. Therefore, when the vertical framing motor 56 rotates, the screw screw 5
4 rotates, and the support base 37 moves up and down. Note that the support base 37 is supported so as to be able to move up and down in parallel by a guide pipe (not shown) installed in the body.

Next, the operation of the film feeding mechanism 30 will be explained. First, the print is placed in the cabinet 10 without holding the print in the print support case 20. Film F is inserted into the insertion slot 32,
When the film F enters between the movable contact 50a and the fixed contact 50b and separates them (see FIG. 11), the film insertion detection switch 50 is turned off and the film feed motor 45 is started. When the film feed motor 45 is started, the drive rollers 39, 41, and 43 rotate via the belt transmission mechanism, and the film F sandwiched between the drive roller 39 and the driven roller 40 is first fed along the introduction guide 33 and the curved guide 34. It will be done.

At this time, or prior to this, the focusing distance adjusting member 27 is rotated and the close-up lens 27a for film is placed in front of the photographing lens 26. As a result, the focusing distance of the photographic lens 26 is shortened, and the film F on the film holding surface is brought into focus.

The leading edge of the film F passes through the trailing edge detection switch 52 and reaches the contacts 51a and 51b of the leading edge detection switch 51.
1, the film feed motor 45 stops, and the film F stops at the position where the first frame of the film F is aligned with the aperture 36. Here, the fluorescent tube 22 is turned on, and the image of the film F illuminated by the white reflected image of the print holding surface 21 is displayed on the monitor TV 19.

Thereafter, each time the frame advance button 16 is pressed, the film advance motor 45 rotates in the forward direction to advance the film F by one frame, and each time the frame return button 15 is pressed once, the film advance motor 45 rotates in the reverse direction to advance the film F by one frame. F is moved back by one frame. During this frame-by-frame forwarding operation, no video from the imaging device 25 is sent to the monitor TV 19. Further, when the film F is fed frame by frame and passes through the film trailing edge detection switch 52 and is turned on (see FIG. 14), the film feed motor 45 stops and no longer rotates in the feeding direction.

When the photographing is finished and the film is to be returned, the eject button 13 is pressed. Then, the fluorescent tube 22 goes out, the monitor TV 19 goes out, the film feed motor 45 reverses, the film F is sent out from the insertion opening 32, and the rotation continues until the film insertion detection switch 50 is turned on. Detection of film insertion, leading edge and trailing edge detection, and control of the film feed motor 45 are performed by a control circuit made up of the three switches 50, 51, and 52.

Next, the slide feeding mechanism 60 will be explained. The slide feeding mechanism 60 has a slide case 61 in which an arbitrary number of slides S can be erected in parallel at predetermined intervals. The slide case 61 is inserted into the slide case insertion opening 11 provided outside the film insertion opening 32. Then, it is guided along guide rails 62, 62 provided parallel to the optical axis, and is moved back and forth by a case feeding mechanism (not shown).

On the photographing lens 26 side of the holding guide 35, there is a slide guide plate 63 extending in a direction perpendicular to the optical axis.
64 are provided. This slide guide plate 6
3 and 64 have windows 63a and 6 larger than the outer shape of the slide S in the portion facing the aperture 36.
4a is open.

A first sliding plate 65 and a second sliding plate 70 are provided above the slide guide plates 63 and 64 and extend in parallel thereto. 1st and 2nd sliding plates 65, 7
0 has guide pins 66, 66, implanted at both ends.
71, 71 are fitted into elongated holes (not shown) formed in the body, and are slidably guided in a direction perpendicular to the optical axis by guide pins 66, 71 and the elongated holes, respectively.

A gripping arm 67 is attached to the lower surface of the left end of the first sliding plate 65 for gripping the slide S placed on the slide case 61 from the left and right sides. tension spring 68
It is always urged to move rightward by.

A rack 72 is formed at the rear edge of the second sliding plate 70 (the edge on the side of the photographing lens 26). A pinion gear 74 of a slide feed motor 73 attached to the support base 37 is engaged with the rack 72.

Further, a downward bent portion 6 is provided at the left end of the first sliding plate 65.
9 is formed, and this downward bent portion 69 is in contact with the left end of the second sliding plate 70. Therefore, when the slide feed motor 73 rotates, the second sliding plate 70 moves to the right, and along with this, the first sliding plate 65 moves to the right by the tension spring 68, so that the right end surface becomes It comes into contact with a stopper pin 75 installed in the body and stops. At this time, the one slide S held by the slide gripping arm 67 is attached to the slide guide plate 6.
3 and 64 to a position aligned with the windows 63a and 64a.

On the right side of the windows 63a and 64a, there is a front U-shaped slide eject lever 8 that vertically sandwiches the windows 63a and 64a.
0 is the vertical shaft 80a implanted in the support base 37
It is rotatably attached to. The upper and lower levers of this slide control lever 80 are spaced apart slightly wider than the width of the film F, and their tips are divided into two forks 81a, 81b.
The slide S is formed so as to fit into the vertical shaft 80a, and is constantly biased to rotate clockwise by a torsion spring 82 fitted to the vertical shaft 80a.

The second sliding plate 70 includes the first and second sliding plates 65, 7
When moving to the right at 0, the first sliding plate 65 moves to the right even after stopping, and the cam surface 76 pushes away the pin 83 of the slide eject lever 80 to rotate the slide eject lever 80 to the left. Then, the lever 81b comes into contact with the slide S, removes the slide S from the slide gripping arm 67, and brings it into contact with the slide holding surface 5 formed on the back surface of the aperture 36. This situation is shown in FIGS. 15 to 17.

Next, the operation of the slide feeding mechanism 60 will be explained. First, the print is stored in the cabinet 10 without holding the print in the print holding case 20. Thereafter, the slide case 61 containing the slide S is inserted into the slide case insertion slot 11 and set, and the frame advance button 16 is pressed. Then,
The slide feed motor 73 rotates, the first and second sliding plates 65 and 70 move to the right, the slide S is loaded on the slide holding surface 53, the fluorescent tube 22 lights up, and the white reflection on the print holding surface 21 The image of the slide S illuminated by the image is displayed on the monitor TV 19.

At this time, or prior to this, the focusing distance adjusting member 27 rotates and the sliding close-up lens 27b enters in front of the photographing lens 26. As a result, the focusing distance of the photographing lens 26 becomes shorter, and the slide S on the slide holding surface 53 is brought into focus.

To return the slide S, press the frame return button 15. Then, the slide feed motor 73 rotates in reverse, and the second sliding plate 70 moves to the left, returning to the initial position along with the first sliding plate 65 along the way. During this movement, the cam surface 76 separates from the pin 83 at the initial stage of movement of the second sliding plate 70. Therefore, the slide extractor lever 80 is rotated to the right by the rotation biasing force of the torsion spring 52, and the lever 81a moves the slide S on the slide holding surface 53 to the slide gripping arm 67 and grips it. As a result, the slide S is returned to the slide case 61 by the first sliding plate 65. When the slide S is not on the slide holding surface 53, the fluorescent tube 22 is turned off and no image is sent from the imaging device 25 to the monitor TV 19.

Next, when the frame feed button 16 is pressed, a case feed mechanism (not shown) is activated to move the slide case 61 forward by one slide, and the slide feed motor 73 rotates to load the next slide S onto the slide holding surface 53. .

Next, the framing operations for the print P, film F, and slide S will be explained.

Framing of the print P in the vertical and horizontal directions is performed by manually inserting and removing the print holding case 20 and moving it left and right. Of course, the print holding case 20 may be movable in the left-right direction by a rack and pinion mechanism and its drive motor.

On the other hand, vertical framing of the film F and slide S is performed by the vertical framing motor 5.
6 to rotate the screw screw 54 and move the holding guide 35 up and down together with the support base 37. This situation is shown in FIGS. 8 and 9. Framing in the left-right direction is performed by moving the holding guide 35 in the left-right direction by the horizontal framing motor 38. In this case, introduction guide 33
The curved guide 3 swings around the insertion port 32 as a fulcrum.
3 curves and follows. The situation is shown in FIGS. 5 and 6.

This operation is performed using the single framing adjustment knob 1.
This can be done with 7 steps. Moreover, as a result of this movement, the film F and the slide S move vertically and horizontally together with the holding guide 35, so that the framing adjustment is common to both. The state when vertical framing is performed is shown in FIGS. 8 and 9, but the slide ejector lever 80 does not move vertically or horizontally.

In this manner, in this embodiment, any of prints, positive films, negative films, and slides can be easily viewed on a monitor TV. The operation is also very easy since the loading of the film and slide is done automatically by the respective feeding mechanisms 30 and 60. Moreover, the framing is done on monitor TV1.
While looking at 9, turn one framing adjustment knob 17
This can be done using the following operations. Note that framing can also be performed with a configuration in which the imaging device 25 is moved.

In this embodiment, horizontal loading is used to facilitate print loading, but vertical loading may also be used. In this case, since the first mirror is not required near the print holding surface, the second mirror is also not required, and therefore the imaging device is disposed in a direction perpendicular to the print, film, and slide holding surfaces. In addition, in the horizontal loading of this embodiment, a pentaprism or two mirrors equivalent thereto are provided in place of the first mirror 23, and the second mirror 24 is eliminated and the imaging device 25 is used as a print, film, or slide holding surface. They may be arranged in a direction perpendicular to 21 and 53.

Further, in the description of this embodiment, it is assumed that a film processed at a general DPE shop and cut into every six frames is used, but it is of course possible to use a long film that is not cut. The film feeding mechanism 30 may be ejected by providing a discharge port at the tip of the holding guide 35 and feeding the film F from the discharge port.
Further, if the photographic lens 26 is a zoom lens, close-up can be freely performed.

"Effects of the Invention" As is clear from the above explanation, the present invention allows easy monitoring of prints, films, and slides.
It can be visualized on TV, and the light source is
Prints, film, and slides can be illuminated simply by using a light source that illuminates the print holding surface. Therefore, a small TV viewer can be obtained.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the internal structure of an embodiment of the TV viewer of the present invention, Fig. 2 is a perspective view showing the external appearance of the same embodiment, and Figs. 3 and 4 show the internal structure of the same embodiment. Plan views shown in different states, No. 5
Fig. 6 and Fig. 6 show the internal structure of the same embodiment with left and right framing, Fig. 7 is a side view showing the main parts of the same internal structure, and Figs. 8 and 9 show the main parts of the same internal structure with top and bottom framing. 10 and 11 are longitudinal sectional views showing the structure of the film insertion detection switch, and FIGS. 12, 13, and 14 are
The figure is a cross-sectional view showing the structure of the rear end of the film and the starting edge detection switch, and FIGS. 15, 16, and 17 are cross-sectional views showing the slide loading and ejecting mechanisms. 10... Cabinet, 11... Slide case insertion slot, 12... Film insertion slot, 13... Eject button, 14... Power switch, 15... Frame advance button, 1
6... Frame return button, 17... Framing adjustment knob, 18... Vertical/horizontal position switching lever, 19... Monitor TV, 20... Print holding case, 21... Print holding surface, 22... Fluorescent tube, 23... First mirror, 24 ...Second mirror, 25...Imaging device, 26...
Photographing lens, 27...Focusing distance adjustment member, 28...Motor, 28...Rotary drive mechanism, 30...Film feeder, 32...Film insertion slot, 33...Introduction guide, 34...Curving guide, 35...Holding guide, 36
...Aperture, 37...Support base, 38...Horizontal framing motor, 39, 41, 43...Drive roller, 40, 42, 44...Followed roller, 45...Film feed motor, 50...Film insertion detection switch, 51...Film leading edge detection Switch, 52...Film trailing edge detection switch, 53...Slide holding surface, 54...Screw screw, 56...Vertical framing motor, 60...Slide feeding device, 61...Slide case, 65...First slide plate, 67...Slide gripping arm , 70... second slide plate, 73...
Slide feed motor, 80...Eject lever.

Claims (1)

[Scope of Claims] 1. A print holding surface that holds a print; a light source that illuminates this print holding surface; an imaging device that receives a reflected light flux from the print holding surface; between the print holding surface and the imaging device, A film holding surface and a slide holding surface provided at different positions in the optical axis direction; Focusing that selects and matches the focusing position of the imaging device with the print on the print holding surface, the film holding surface, or the slide holding surface; A distance adjusting means; The imaging device includes a light beam from the light source, a light beam reflected from a print placed on a print holding surface, a light beam reflected from a print holding surface on which no print is placed and transmitted through the film, Alternatively, a TV viewer is characterized in that it outputs an image of a print, film, or slide to a monitor TV by receiving a beam of light reflected from the print holding surface and transmitted through the slide. 2. In claim 1, the focusing distance adjusting means selects between a plurality of close-up lenses provided on a rotating disk and having different focal lengths, and aligns the close-up lens on the optical axis of the imaging device. A TV viewer consisting of a driving means for positioning the TV.