JPH0470640A - Film image reader - Google Patents

Abstract

PURPOSE:To simplify and miniaturize the constitution of a film feeding means and to reduce the cost thereof by providing a means for successively feeding a film original to a device main body by interlocking with the reciprocation of a film original scanning means and making the feeding means attachable/ detachable with the device main body. CONSTITUTION:This reader is provided with scanning means 21-26 for scanning the film original 20, and the feeding means 19 for successively feeding the film original 20 to the device main body 11 by interlicking with the reciprocation of the scanning means 21-26, and the feeding means 19 is constituted so that it can be attached to/detached from the device main body 11. By making the feeding means 19 for feeding the film original 20, which can be attached to/ detached from the device main body 11, interlock with the means 21-26 for scanning the film original 20 in the device main body 11, it is unnecessary to add any driving system to the feeding means 19. Thus, the constitution of the film feeding means is simplified and miniaturized and the cost thereof is reduced.

Description

[Detailed Description of the Invention] Industrial Application Fields The present invention relates to a film image reading method that projects a film original, particularly a film original inserted into a slide mount, onto a reading sensor and sequentially converts image information into electrical signals. It is related to the device.

<Prior Art> Conventionally, so-called slide projectors have been known that sequentially feed films inserted into a slide mount into an apparatus main body and project information on both images onto a screen or the like.

It is also known that the film feeding system of the slide projector is incorporated into a film image reading device that projects a film original onto a reading sensor and converts image information into an electrical signal. 9 to 11 show an example of such a film image reading device.

That is, in FIG. 9, the main body 1 of the film image removing device includes a plurality of slide mounts S (FIG. 11) set along the circumferential direction on a slide tray 2a formed in an annular shape. The main body 1 includes a slide changer 2 for automatically inserting sheets one by one into the film original setting position of 1 and sequentially reading the slide mounts, or a magazine 5 for reading negative films, etc. as shown in FIG.
It is detachable from the main body 1 and includes a lock release lever 4 for removing the pure 3 on which the film original at the film original setting position and the slide changer 2 or the magazine 5 are removed from the main body 1. moreover,
As shown in FIG. 11, the slide changer 2 includes a slide tray 2a for setting the slide mount S, electric power to be supplied to the motor for operating the internal start-up, the condition of the slide changer, the condition of the film, etc. It is equipped with a connector 2b for transmitting signals to the main body 1.
By the mounting operation, the connector 2bi is connected to a main body side connector (not shown).

<Problems to be Solved by the Invention> However, in order to sequentially insert the slide mount S into the film document setting position, mechanisms such as cams and levers, as well as motors and drivers for driving and controlling the mechanisms, are required in the slide changer 2. etc., the slide changer 2 becomes large in size, and furthermore, a scanning system for reading operation is provided in the main body 1 of the apparatus, making the apparatus as a whole expensive.

SUMMARY OF THE INVENTION In view of the problems of the prior art described above, it is an object of the present invention to provide a film image reading device that has a simple structure and eliminates the need for expensive film feeding means.

<Means for Solving the Problems> In order to achieve the objects described above, the present invention includes an illumination optical system that illuminates a film original, and a photoelectric conversion element that converts a light image from the original illuminated by the illumination optical system. A film image reading device that converts image information of the film document into an electrical signal, and includes a scanning device that scans the film document, and a device main body that sequentially moves with the reciprocating motion of the scanning device. and a feeding means for feeding the film original, and the feeding means is configured to be detachable from the main body of the apparatus.

<Function> The film image reading device configured as described above has the feeding means, which is removably attached to the main body of the device that feeds the film document, moved by the scanning device for the film document in the main body of the device, so that the feeding device does not have any driving force. A film image reading device having a small and inexpensive feeding means can be obtained without adding any system.

<Example> An example of the present invention will be described below with reference to FIGS. 1 to 8.

FIG. 1 is a perspective view showing a schematic configuration of a film image reading device. In the figure, 11 is the main body of the device, 12 is an illumination optical system consisting of a halogen lamp, a condensing lens, a field lens, etc., 13, 14, 16 is a reflecting mirror arranged along the projection optical path, and 15 is a projection mirror. The lens is disposed between the reflecting mirrors 14 and 16, and is connected to the illumination optical system 1.
A light image transmitted through a film original (not shown) illuminated by 2 is projected onto a sensor 17 via reflection mirrors 13 to 16. The sensor 17 is a line sensor such as a CCD,
By sequentially scanning the film original by a scanning system to be described later, image information on the film original is sequentially converted into electrical signals.

Reference numeral 18 denotes a mounting portion for fixing a slide changer 19 that sequentially feeds slide mounts, which will be described later, to a reading position of the apparatus main body 11, or a magazine 20, which holds negative film, which is a document.

FIG. 2T is a perspective view showing the relationship between the slide changer 19 that sequentially feeds the slide mounts to the reading position of the apparatus main body 11 and the scanning system constructed within the apparatus main body 11.

In the figure, as a scanning system, 21 is a motor for scanning a film original, 22 is a drive pulley 23 integrally provided on the output shaft of the motor 21, and is a driven pulley 2.
4 is a scanning rail fixed to the main body of the apparatus;
Reference numeral 26 denotes a scanning unit that drives on the scanning rail 25, is attached to the wire 24, and is driven and scanned by the motor 21 via the drive pulley 22, driven pulley 23, and wire 24 in the direction of the arrow in the figure.

Next, regarding the slide changer 19, numeral 31 is an upper stocker in which the slide mounts that are sequentially fed for reading are stored in advance, and the slide mount S stored as shown in FIG. spring 45
32 is a lower stocker for storing slide mounts to be cultivated in sequence after reading, 33 is a slider for inserting slide mounts (not shown) stored in the upper stocker 31 one by one into the mount holder 34, A claw 3 that engages with the slide mount on one end surface of the
3a, and is fitted and connected to a pin 26a integrally provided in the scanning unit 26 of the scanning system in the attached state, and is scanned by power transmission. A mount holder 34 holds the slide mount fed by the slider 33, and is scanned integrally with the slider 33 for a reading operation while holding the slide mount. Reference numerals 35 and 36 are plate springs provided on the mount holder 34 for pressing and positioning the slide mount downward in the drawing while the slide mount is being held; 37 is a leaf spring provided on the mount holder 34 in the direction in which the slide mount is inserted; This is a leaf spring for positioning by pressing in a direction perpendicular to the . 38.39
is a rail located below the upper stocker 31 on the upper surface side of the slider 33 and supporting a slide mount from the upper stocker 31. A hook 40 is provided on one side of the slider 33 and is used to integrally engage the slider 33 and the mount holder 34, and is provided on one side of the mount holder 34 when the slide mount is inserted. It is designed to engage with the square hole 34a.

Reference numeral 41 denotes a control lever located on one end surface of the mount holder 34 to control the operation of the mount holder 34. The control lever 41 remains in the illustrated state until the slide mount is inserted, and holds the mount holder 34 together with the stopper 42. , and then the protrusion 26 provided integrally with the scanning section 26.
It is set to be released by b. Reference numeral 43 denotes a guide plate that is disposed below the rail 39 and deflects the slide mount toward the lower stocker 32 after a reading operation.

The slide changer 19 having this configuration can be attached to and detached from the mounting portion 18 of the device main body 11 as described above. Although the slide changer frame is omitted for the sake of explanation, the slider 33. Mount holder 3
4 is supported so as to be slidable in the direction of the arrow shown in the figure with respect to the frame.

The operation when the slide changer of this embodiment having the above structure is attached will be explained with reference to FIGS. 3 to 7.

First, in FIG. 3, when the slider 33 is driven by the scanning unit 26 and slides together from the position shown in the figure to the right, the claw 33a provided on the slider 33 causes the slide mount S stored in the upper stocker 31 to reach the uppermost position. The lower one is picked up and moved to the right in the figure together with the slider 33, resulting in the state shown in FIG. moreover,
The slider 33 moves to the right and the mount holder 3
4 and is engaged by the hook 40 and the square hole 34a, the left end of the slide mount S touches the rail 3.
8.39 and is pushed downward in the figure by the pressing force of the leaf springs 35 and 36, and as a result, the slide mount S passes through the opening of the slider 33 and becomes in the state shown in Figures 5 and 6. . In this state, the slide mount S is securely held by the mount holder 34. From this state, the slider 33 and the mount holder 34 move together and further scan in the right direction, so that the slide mount S, which is a film original, is illuminated by the illumination optical system 12 located behind, and the reading operation begins.

At this time, the control lever 41 is further moved to the position shown in the figure by the protrusion 26b provided on the scanning section 26, and the engagement with the mount holder 34 is released, so that the mount holder 34 is in a state where it can scan in the direction of the arrow shown in the figure (rightward). becomes. A reading operation is performed by scanning the image area from this state. After the reading operation is completed, when scanning is performed from the state shown in FIG. At the same time, the protrusion 26b of the scanning section 26 displaces the control lever 41 so as to engage with the mount holder 34, and finally the state shown in FIG. 2 is reached. As shown in FIG. 7, the read slide mount S is slid by the slider 33 in the direction of the arrow in the figure, is slid while being displaced downward by the guide plate 43, and falls into the lower stocker 32 to be stored.

Next, FIG. 8 shows a perspective view of a magazine 20, which uses a carrier for supporting negative films or the like instead of the slide changer 19, and is attached thereto.

In the figure, reference numeral 51 denotes a holding member that holds a carrier 56 that supports a negative film or the like, and is a holding member that holds a carrier 56 that supports the scanning unit 2 of the above-mentioned scanning system.
A hole 51a is provided that fits and connects with the bin 26a provided in the magazine 6 when the magazine is attached, and power is transmitted from the scanning unit 26 to scan in the direction of the arrow in the figure. Furthermore, the holding member 5
1 has an opening 52 corresponding to the image area of the film original and insertion openings 53 and 54 corresponding to the insertion direction of the carrier 56.
The carrier 56 is inserted through the insertion opening 53 or 54, respectively, corresponding to the length and width of the film document. Reference numeral 55 denotes a deflection mirror for guiding a portion of the light beam from the illumination optical system 12 to the film document in the illustrated document set state, and is located below the opening 52. Therefore, confirmation of the film original is performed through the opening 52 by the light beam illuminated by the reflecting mirror 55.

The magazine 20 configured as described above is removably attached to the main body 11 of the film image reading device, and although the magazine frame is omitted for the sake of explanation, the holding member 51 slides against the frame in the direction of the arrow in the figure. movably supported.

In the reading operation when the magazine is attached, the holding member 51 is first scanned in the arrow direction (rightward direction) in the figure, moves to the upper part of the illumination optical system 12 (not shown), and then moves further to perform the reading operation. scanned. After the reading operation is completed, it returns to the illustrated position and ends.

<Effects of the Invention> As explained above, the present invention has a structure in which the feeding means that sequentially feeds the film originals by moving with the reciprocating motion of the scanning means for scanning the film originals is configured to be detachable from the main body of the apparatus. This has the effect that the film image reading device can be manufactured in a small size and at low cost without adding any drive or control system to the feeding means.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a schematic configuration of a film image reading device according to an embodiment of the present invention, FIG. 2 is a perspective view of main parts showing the related structure of a slide changer and a scanning system, and FIGS. Figure 5 is an explanatory diagram of the operation of the slide changer during reading, Figure 6 is a perspective view showing the state of the slide changer during reading, Figure 7 is an explanatory diagram of the operation of the slide changer at the end of reading, and Figure 8 is the diagram. FIGS. 9 and 10 are perspective views of main parts showing the related structure of the magazine and the scanning system, and FIGS. 9 and 10 are perspective views of a conventional film reading device. FIG.
Fig. 0 shows the magazine mounted state, and Fig. 11 is an exploded perspective view of the slide changer. 11... Apparatus main body, 12... Illumination optical system, 15...
・Projection lens, 17...Line image lenser, 19
...Slide change V-20...Magazine, 21
...Motor (for scanning system), 22...Drive pulley,
23... Driven pulley, 24... Wire, 25...
・Rail, 26... Scanning section, 33... Slider,
34...7 mount holder, 51...holding member, 5
6...Carrier, S...Slide mount (film original). Patent applicant Canon Co., Ltd. agent Patent attorney 1) Mitsuharu Mura. Figure 10

Claims (1)

[Claims] 1. An illumination optical system that illuminates a film original, and a projection optical system that guides a light image from the original illuminated by the illumination optical system to a photoelectric conversion element, and converts image information of the film original into an electrical signal. The film image reading device includes a scanning means for scanning the film original, and a feeding means that moves in accordance with the reciprocating motion of the scanning means to sequentially feed the film original to the apparatus main body. A film image reading device characterized in that it is configured to be detachable from the camera.