JPH08167973A - Reader for film original - Google Patents

Abstract

PURPOSE: To detect insertion of an original holder and the size of a film original with one detection means in the reader of the film original. CONSTITUTION: A mark (e.g. a notch or the like) representing the size of a film original 20 is displayed on the front side of an original and the reader is provided with a detection means 80 by which insertion of the original holder 30 to a carriage 40 is optically detected and the mark of the original holder 30 is optically detected.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film original reading device, and more particularly to a device for detecting whether or not an original holder is inserted and the size of a film original by one detecting means.

[0002]

2. Description of the Related Art Conventionally, in this type of reading apparatus, the size of a film original is, for example, a so-called 35 mm size slide film only. On the other hand, generally, in a device that handles a plurality of types of media, as a method of discriminating between the media, holes provided in the media, such as a VTR (video player) and a cassette tape recorder, are located where the holes are respectively located. A mechanical switch was provided, and the type of medium was judged by the ON / OFF state of each switch.

[0003]

However, even in the above-described conventional apparatus for reading a film original, in addition to the so-called 35 mm size slide film, different sizes such as a so-called panoramic size and 6 cm × 6 cm,
When reading a 6 cm x 7 cm, 6 cm x 9 cm, or 4 inch x 5 inch size film original, the first problem is that multiple dedicated reading devices must be prepared according to the size of the film original. There is.

Further, even if the technique of general equipment using a conventional mechanical switch is applied, two sensors are required to determine whether or not a film original is inserted and its size. There is a problem. For example, if the number of types of film originals to be determined increases, it is difficult to determine with the conventional technology of general equipment using mechanical switches.

Further, if the position of the mechanical switch for determining the size of the film original is fixed, the expandability such as changing the position and shape of the hole is poor. Further, in the method of reading the image while the film original is being transferred, the contact type mechanical switch becomes a source of vibration and is not preferable. Therefore, the invention according to claim 1 has been made in view of the problems of the above-described conventional technique, and its purpose is to determine whether or not a document holder is inserted and the size of a film document. It is an object of the present invention to provide a film original reading device which has a small number of parts, has a simple structure, and can be realized at a comparatively low cost by enabling detection by one optical detecting means.

The invention according to claim 2 is the above-mentioned claim 1.
In addition to the object of the invention described above, it is possible to optically detect by utilizing transmitted light. The invention according to claim 3 is
In addition to the above-mentioned object of the invention of claim 2, the cutout portion is utilized so that the light emitted from the light emitting element can be transmitted and blocked.

The invention according to claim 4 is the above-mentioned claim 2.
In addition to the object of the invention described above, the size of the film original can be easily changed by changing the insertion position of the pin. According to a fifth aspect of the present invention, in addition to the object of the second aspect, the size of the film original can be easily changed by sliding the slide member.

The invention according to claim 6 is the above-mentioned claim 1.
In addition to the object of the invention described above, it is possible to optically detect by utilizing reflected light. The invention according to claim 7 is
In addition to the object of the invention described in claim 6, the size of the film original can be easily changed by sliding the slide member.

The invention according to claim 8 is the above-mentioned claim 1.
In addition to the object of the invention described above, an image reading means for reading a film original can be used as the detecting means.

[0010]

The present invention is to achieve the above-mentioned object, and the contents thereof will be described below with reference to the embodiments shown in the drawings. The invention according to claim 1 is characterized by the following points. That is, the document holder (30)
As shown in Fig. 2, for example, a film original (2
A mark indicating the size of (0) (for example, the cutouts 90, 91, etc.) is displayed and, as shown in FIG. 1, for example, the fact that the original holder (30) has been inserted into the carriage (40) is optically displayed. It is provided with one detection means (80) for detecting and optically detecting the mark on the document holder (30).

The invention according to claim 2 is the above-mentioned claim 1.
In addition to the features of the described invention, the following features are provided. That is, as shown in FIG. 1, for example, the detection means (80) includes a light emitting element (eg LED 81) and the light emitting element (eg L
It is composed of a light receiving element (for example, a phototransistor 82) that receives the transmitted light emitted from the ED 81).

The invention according to claim 3 is the above-mentioned claim 2.
In addition to the features of the described invention, the following features are provided. That is, the mark on the document holder (30) is, for example, as shown in FIG.
As shown in (1), the document holder (30) is formed with notches (90, 91). The invention described in claim 4 is characterized by the following points in addition to the features of the invention described in claim 2.

That is, the mark of the document holder (30) is formed along the transfer direction of the document holder (30) transferred by the transfer means (50) as shown in FIGS. A plurality of through holes (100) and the plurality of through holes
Of the (100), at least one of the through holes (100) is configured to include a pin (101) for shielding the through hole (100) from light.

The invention according to claim 5 is the above-mentioned claim 2.
In addition to the features of the described invention, the following features are provided. That is, as shown in FIGS. 5 and 6, the mark on the document holder (30) has an elongated hole () formed along the transfer direction of the document holder (30) transferred by the transfer means (50). 11
0) and a slide member (111) that can slide along the elongated hole (110) and shields the elongated hole (110) from light at the stop position.

The invention according to claim 6 is the above-mentioned claim 1.
In addition to the features of the described invention, the following features are provided. That is, the detection means (80) is composed of a photo reflector (83) as shown in FIG. 7, for example. In addition to the features of the invention described in claim 6,
It is characterized by the following points.

That is, the mark of the document holder (30) is held slidably along the transfer direction of the document holder (30) transferred by the transfer means (50) as shown in FIG. 8, for example. And a slide member (122) having a reflection portion (for example, a slide reflection portion 121) that reflects the light emitted from the photo reflector (83).

The invention according to claim 8 is the above-mentioned claim 1.
In addition to the features of the described invention, the following features are provided. That is, the image reading means (60) also serves as the detection means.

[0018]

[Operation] Therefore, according to the invention of claim 1,
It has the following effects. That is, the detection means (80),
For example, as shown in FIG. 1, first, the fact that the document holder (30) has been inserted into the carriage (40) is optically detected. As a result, the transfer means (50) is actuated, and during the transfer, the detection means (80) optically detects the mark (for example, the cutout portions 90, 91) of the document holder (30) as shown in FIG. To detect.

As a result, the size of the film original (20) mounted on the original holder (30) can be determined, and the film original (2
An appropriate image can be read according to the size of (0). According to the invention described in claim 2, in addition to the operation described in claim 1, the following operation is achieved.

That is, for example, as shown in FIG. 1, the insertion of the original document holder (30) and the size of the film original document (20) can be detected by transmitting and blocking the light emitted from the light emitting element (for example, the LED 81). According to the invention of claim 3, in addition to the effect of claim 2 described above, the following effect is exhibited.

That is, for example, as shown in FIG. 2, the cutouts (90, 91) formed in the document holder (30) allow the light emitted from the light emitting element (for example, the LED 81) to pass therethrough, so that the film The size of the document (20) can be detected. According to the invention described in claim 4, in addition to the effect described in claim 2, the following effect is exhibited.

That is, for example, as shown in FIG. 3, at the position of the through hole (100), the light emitted from the light emitting element (for example, the LED 81) is transmitted. On the other hand, for example, as shown in FIG. 3, at the position where the pin (101) is inserted into the through hole (100), the light emitted from the light emitting element (for example, the LED 81) is blocked by the pin (101) and the pin (101 The size of the film original (20) can be detected from the position where () is inserted.

According to the invention of claim 5, in addition to the operation of claim 2 described above, the following operation is achieved. That is, for example, as shown in FIGS. 5 and 6, the light emitted from the light emitting element (for example, the LED 81) is transmitted at the position of the elongated hole (110). On the other hand, as shown in FIGS. 5 and 6, for example, at the stop position of the slide member (111), the light emitting element (for example, L
The light emitted from the ED81) is blocked by the slide member (111), and the film original is moved from the stop position of the slide member (111).
The size of (20) can be detected.

According to the invention described in claim 6, in addition to the operation described in claim 1, the following operation is achieved. That is, for example, as shown in FIG. 7, the photo reflector (8
The reflection of the emitted light from 3) allows the insertion of the document holder (30) and the size of the film document (20) to be detected.

According to the invention of claim 7, in addition to the operation of claim 6 described above, the following operation is achieved. That is, for example, as shown in FIG. 8, the slide member (122)
At the stop position of, the light emitted from the photoreflector (83) is reflected by the reflection part (for example, the slide reflection part 12) of the slide member (122).
The size of the film original (20) can be detected from the stop position of the slide member (122) by being reflected by 1).

According to the invention of claim 7, in addition to the operation of claim 1 described above, the following operation is achieved. That is, although not shown, an image reading unit that also serves as a detection unit
Insert the original holder (30) and film original by (60).
It is possible to detect the size of (20) and read the film original (20).

[0027]

1 and 2 show a first embodiment of the present invention. FIG. 1 is a schematic explanatory view of a film original reading device, and FIG. 2 is an exploded perspective view of an original holder.
In the figure, 10 indicates a reading device, and the reading device 10 reads film originals 20 of different sizes.

The film original 20 is, for example, a so-called 35 mm size, a so-called panoramic size, or 6 cm ×
6 cm, 6 cm x 7 cm, 6 cm x 9 cm, or 4 inches x 5
At least two types of inch size and so on can be read. The film original 20 is
As shown in FIG. 2, it is held on a document holder 30.

As shown in FIG. 2, the original document holder 30 has a frame-shaped holder frame 31 and two upper and lower parts which are held in the frame of the holder frame 31 and hold the film original 20 by sandwiching it from the front and back surfaces. It is composed of glass 32 and 33.
Then, the mask 34 is sandwiched between the upper and lower two glasses 32 and 33 as shown in FIG. 2 according to the size of the screen of the film original 20.

The mask 34 prevents light from wrapping around the film original 20 from where the screen is not present, and widens the effective light amount range of the photoelectric conversion element 64 shown in FIG. 1, that is, the transmission of the photoelectric conversion element 64. This is to prevent saturation due to the amount of light. Then, on the end surface of the mask 34,
As shown in FIG. 2, a mark indicating the size of the film original 20, that is, two first and second notches 90 and 91 are formed along the transport direction of the film original 20. Both notches 90 and 91 are formed by notching the end surface of the mask 34 in a U shape, and are formed so as to match the positions of both ends of the screen of the film original 20.

As shown in FIG. 1, the reading device 10 is roughly divided into a carriage 40 having an insertion opening 41 for inserting the document holder 30 and a transfer means 50 for transferring the carriage 40 into the device. Image reading means 60 for reading the film original 20 of the original holder 30 transferred by the transfer means 50, transfer means 50 and image reading means
It is provided with control means 70 for controlling 60.

As shown in FIG. 1, the transfer means 50 includes a pair of left and right guide bars 51 for slidably holding the carriage 40, and a step motor as a drive source for sliding the carriage 40 along the guide bars 51. It consists of 52 and. The image reading means 60, as shown in FIG.
An illumination light source 61 that is located within the transfer range of the carriage 40 and that illuminates the film original 20 from above, and a mirror 62 that is located below the illumination light source 61 with the film original 20 in between and that bends the optical axis of the transmitted light. The image forming lens 63 forms an image of the transmitted light reflected by the mirror 62, and the line type photoelectric conversion element 64 for reading the image formed by the image forming lens 63.

The control means 70, as shown in FIG.
The PU 71 is the main component, and the output signal from the photoelectric conversion element 64 is amplified by the amplifier 72, and then the A / D converter 73
Is converted into a digital signal and read by the CPU 71. Further, the CPU 71 controls the drive of the step motor 52. In addition, as shown in FIG. 1, the reading device 10 is provided with one detecting means 80 which is one of the features of the present invention.

In the present embodiment, the detecting means 80 uses a photo interrupter or photo coupler for detecting transmitted light. Specifically, as shown in FIG. 1, the carriage
For example, an LED 81 as a light emitting element disposed adjacent to and above the LED 40 and a phototransistor 81 as a light receiving element disposed below the LED 81 with the carriage 40 interposed therebetween are configured. The phototransistor 81 is connected to the CPU 71 via the I / O 74.

Next, the operation of the reading device 10 having the above structure will be described. Phototransistor 81
Is always ON, and the CPU 71 constantly observes the state. At the standby position of the carriage 40, its insertion port 41
When the document holder 30 is inserted from the
Thus, the light emitted from the LED 81 is blocked and the phototransistor 81 is turned off. When the phototransistor 81 is turned off, the CPU 71 determines that the document holder 30 is inserted, drives the step motor 52, and drives the carriage.
Transfer 40 and start automatic loading.

During this loading, the CPU 71 observes the state of the phototransistor 81, and
The transfer distance of 40 is also observed at the same time. The transfer distance of the carriage 40 is calculated from the count number of pulses of the step motor 52. When the first cutout portion 90 of the mask 34 shown in FIG. 2 passes directly under the LED 81, the light emitted from the LED 81 passes through the first cutout portion 90 and the phototransistor 81 is turned from OFF to ON. When the first cutout portion 90 passes, the mask 34 shields the light and turns off again. Next, the phototransistor 81 is turned on once at the position of the second cutout portion 91 of the mask 34 shown in FIG.
It becomes F.

The CPU 71 determines the size of the film original 20 from the distance between the first notch 90 and the second notch 91 because the distance between the front and rear edges of the screen of the film original 20 is known. can do. Therefore, the CPU 71 can perform appropriate reading control according to the size of the film original 20. 3 and 4 show a second embodiment of the present invention. FIG. 3 is a perspective view of a document holder, and FIG. 4 is an enlarged perspective view of a pin of the same.

The feature of the second embodiment resides in that the position of the mark indicating the size of the film original 20 can be freely changed. That is, the mark of the second embodiment is as shown in FIG.
As shown in FIG. 2, a plurality of through holes 100 formed along the transport direction of the document holder 30 and two of the plurality of through holes 100 are shown.
Two pins 1 that are inserted in the place and shield the through hole 100 from light
It is composed of 01 and 101.

The plurality of through holes 100 are formed at one end of the holder frame 31 as shown in FIG.
It penetrates 31 up and down. Further, the intervals between the adjacent through holes 100 are formed so as to fit various sizes of the film original 20. The pin 101, as shown in FIG.
The head 102 has a diameter larger than the inner diameter of the through hole 100, and a shaft portion 103 extending from the lower surface of the head 102 and having an outer diameter substantially equal to the inner diameter of the through hole 100.

Then, as shown in FIG.
Two through holes located at the front and rear edges of the 20 screens
The shaft portion 102 of each pin 101 is aligned with 100 and is inserted from above. In the second embodiment, contrary to the first embodiment described above, light is shielded by the two pins 101 and the through hole 1
The size of the film original 20 can be determined by observing the position where the phototransistor 81 is turned off at the position of 00 with the CPU 71.

According to the second embodiment, it is possible to deal with film originals 20 of various sizes simply by replacing the pins 101. 5 and 6 show a third embodiment of the present invention. FIG. 5 is a perspective view of a document holder, and FIG. 6 is a partial sectional view of the same. The feature of the third embodiment is that
The point is that the mark indicating the size of the film original 20 can be slid.

That is, as shown in FIGS. 5 and 6, the mark of the third embodiment can be slid along the elongated hole 110 formed along the moving direction of the document holder 30 and the elongated hole 110. , And two slide members 111 that shield the elongated hole 110 from light at the stop position. The slot 110 is shown in FIG.
As shown in FIG. 6, it is formed at one end of the holder frame 31, and penetrates the holder frame 31 vertically.

As shown in FIGS. 5 and 6, the slide member 111 includes a light shielding portion 112 that closes the upper surface of the elongated hole 110, and a light shielding portion 112.
It has a folded-back portion 113 which is bent from 112 along the end face of the holder frame 31 to have an L-shaped cross section, and whose lower end is folded back into a V-shape. Then, as shown in FIG. 6, a V-shaped slide groove 114 into which the folded-back portion 113 of the slide member 111 is fitted is formed on the lower surface of the holder frame 31, and the slide groove 1 is formed.
The reference numeral 14 extends parallel to the elongated hole 110 along the transport direction of the document holder 30.

Further, as shown in FIG. 5, at the tip of the light shielding portion 112 of the slide member 111, a pointing portion 115 having a triangular shape is sharpened.
The instruction section 115 allows the film original 20 to be aligned with the front and rear edges of the screen. Then, as shown in FIG. 5, the two slide members 111 are slid and stopped so that the respective instruction portions 115 are respectively positioned at the front and rear end portions of the screen of the film original 20.

In the third embodiment, the light shielding portion 112 of the two slide members 111 is similar to the second embodiment described above.
The size of the film original 20 can be determined by observing, with the CPU 71, the position where the phototransistor 81 is turned off while being shielded from light. According to the third embodiment, the slide member
By simply sliding 111, film originals 20 of various sizes can be handled.

FIG. 7 shows a fourth embodiment of the present invention, which is a schematic explanatory view of the reading device. Book 4
The feature of the embodiment is that a photo reflector 83 for detecting reflected light is used as the detection means 80 as shown in FIG. As shown in FIG. 7, the photo reflector 83 is connected to the CPU 71 via an I / O 74, and the CPU 71 observes the state change of the photo reflector 83 to determine the size of the film original 20.

Next, FIG. 8 shows a fifth embodiment of the present invention, which is a perspective view of a document holder. The feature of the fifth embodiment is that the photo-reflector 83 shown in the fourth embodiment is used to determine whether the original holder 30 is inserted or not and the size of the film original 20. Is in the point of providing.

That is, the holder frame 31 of the original holder 30
As shown in FIG. 8, a holder reflecting portion 120 that reflects the light emitted from the photo reflector 83 is formed on the one side surface at the front end portion in the insertion direction. Further, as shown in FIG. 8, the mark indicating the size of the document holder 30 is composed of a reflection portion that reflects the light emitted from the photo reflector 83, and in this embodiment, two slide members 122 having a slide reflection portion 121. It is configured.

As shown in FIG. 8, the slide member 122 has a structure similar to that of the third embodiment described above with reference to FIGS. 5 and 6, and is formed on the lower surface of the holder frame 31. It is held in a slide groove 123 having a V-shaped cross section and can slide along the transport direction of the document holder 30. The slide reflection part 121 is formed on the side surface of the slide member 122, that is, in the same direction as the holder reflection part 120. Also,
At the top end of the slide member 122, a triangular pointing portion 124 is formed.

Then, as shown in FIG.
The two slide members 122 are slid and stopped so that the respective instruction portions 124 are located at the front and rear ends of the screen of 20, respectively. The operation of the fifth embodiment will be described using the reading device 10 of the fourth embodiment described above with reference to FIG.

First, as shown in FIG. 7, when the document holder 30 is inserted from the insertion port 41 at the standby position of the carriage 40, the light emitted from the photo reflector 83 is emitted by the holder reflection section 120 shown in FIG. By being reflected, the state of the photo reflector 83 changes, and the CPU 71 observes this state change and starts automatic loading. During this loading, the CPU 71 observes the state change of the photo reflector 83, and the light emitted from the photo reflector 83 is reflected by each slide reflection part 121 of the two slide members 122 shown in FIG. The size of the film original 20 can be determined from the changed position.

When the mask 34 is used, a cutout bar code is displayed on the mask 34 as a mark indicating the size of the film original 20 and the photo interrupter is used.
The size of the film original 20 may be determined by reading the bar code at 81 and 82. Further, as the detecting means 80 for detecting the size of the film original 20, in addition to the photo interrupters 81, 82 or the photo reflector 83, the photoelectric conversion element 64 constituting the image reading means 60 may be used. In this case, each element of the photoelectric conversion element 64 functions as a phototransistor, and the certification light source 61 functions as an LED.

[0053]

Since the present invention is constituted as described above, it has the following effects. Claim 1
According to the invention described above, the presence or absence of the document holder and the size of the film document can be detected by one optical detecting means, so that the number of parts is small, the structure is simple, and the comparison is made. It is possible to provide a film original reading device that can be realized at low cost.

According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, it is possible to optically detect by utilizing transmitted light. According to the invention described in claim 3, in addition to the effect of the invention described in claim 2, the cutout portion can be used to transmit / block the light emitted from the light emitting element.

According to the invention described in claim 4, in addition to the effect of the invention described in claim 2, it is possible to easily change the size of the film original by changing the insertion position of the pin. According to the invention described in claim 5, in addition to the effect of the invention described in claim 2, the size of the film original can be easily changed by sliding the slide member.

According to the invention described in claim 6, in addition to the effect of the invention described in claim 1, it is possible to optically detect using reflected light. According to the invention described in claim 7, in addition to the effect of the invention described in claim 6, it is possible to easily change the size of the film original by sliding the slide member.

According to the invention described in claim 8, in addition to the effect of the invention described in claim 1, the image reading means for reading the film original can be used as the detecting means.

[Brief description of drawings]

FIG. 1 is a schematic explanatory diagram of a film original reading device.

FIG. 2 is an exploded perspective view of a document holder.

FIG. 3 is a perspective view of a document holder according to the second embodiment of the present invention.

FIG. 4 is an enlarged perspective view showing the pin of FIG.

FIG. 5 is a perspective view of a document holder according to the third embodiment of the present invention.

6 is a partial cross-sectional view of FIG.

FIG. 7 is a schematic explanatory diagram of a film original reading device according to a fourth embodiment of the present invention.

FIG. 8 is a perspective view of a document holder according to the fifth embodiment of the present invention.

[Explanation of symbols]

 10 Reading device 20 Film original 30 Original holder 31 Holder frame 32, 33 Glass 34 Mask 40 Carriage 41 Insertion port 50 Transfer means 51 Guide bar 52 Step motor 60 Image reading means 61 Illumination light source 62 Mirror 63 Imaging lens 64 Light source conversion element 70 Control means 71 CPU 72 Amplifier 73 A / D converter 74 I / O 80 Detection means 81 LED 82 Phototransistor 83 Photoreflector 90,91 1st and 2nd notch 100 100 Through hole 101 Pin 102 Head 103 Shaft 110 length Hole 111 Sliding member 112 Light-shielding part 113 Folding part 114 Sliding groove 115 Pointing part 120 Holder reflecting part 121 Sliding reflecting part 122 Sliding member 123 Sliding groove 124 Pointing part

Claims (8)

[Claims] 1. An original holder for holding film originals of different sizes, an insertion opening of the original holder, a carriage for holding the original holder inserted through the insertion opening, and a carriage for moving the carriage into the apparatus. In a film original reading apparatus including a transfer unit and an image reading unit that reads the film original of the original holder transferred by the transfer unit, a mark indicating a size of the film original is provided on a surface of the original holder. Is displayed, the film original is provided with one detecting means for optically detecting that the original holder is inserted in the carriage and optically detecting the mark of the original holder. Reading device. 2. The apparatus for reading a film original according to claim 1, wherein the detecting means is composed of a light emitting element and a light receiving element for receiving the transmitted light emitted from the light emitting element. 3. The apparatus for reading a film original according to claim 2, wherein the mark of the original holder is formed by a notch formed in the original holder. 4. The mark of the document holder is provided with a plurality of through holes formed along the transfer direction of the document holder transferred by the transfer means, and at least one of the plurality of through holes. 3. The film original reading device according to claim 2, further comprising a pin which is inserted into the through hole and shields the through hole. 5. The mark of the document holder is an elongated hole formed along the transfer direction of the document holder transferred by the transfer means, and is slidable along the elongated hole, and the mark is provided at a stop position. 3. The film original reading device according to claim 2, further comprising a slide member that shields the long hole. 6. The apparatus for reading a film original according to claim 1, wherein the detecting means is composed of a photo reflector. 7. The reflector of the mark on the original holder is slidably held along the transfer direction of the original holder transferred by the transfer unit, and reflects the light emitted from the photoreflector. 7. The film original reading device according to claim 6, further comprising a slide member having the same. 8. The film document reading device according to claim 1, wherein the image reading unit also serves as the detection unit.