JP3004998B2 - Film image reading device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to, for example, sequentially sending a film or the like held on a slide mount from a storage unit to a reading unit one by one, and recording information recorded on the film in the reading unit. The present invention relates to a film image reading device such as a slide projector for reading an image.

[Conventional technology]

2. Description of the Related Art Conventionally, as this type of apparatus, for example, a slide projector having an automatic frame feed function described later is widely known. This apparatus is provided with a film supply device (hereinafter, referred to as an auto-changer) including a tray for storing a film held by a slide mount, and a reading unit provided at a lower portion of the tray and for reading film information. ing.

The tray is installed rotatably by the driving means,
A plurality of storage portions are formed radially at equal intervals around the center of rotation, and one storage portion is configured to store one film. Each time the forward button or the reverse button is pressed once, the tray rotates in one direction by one storage unit (hereinafter, referred to as one frame) (hereinafter, referred to as frame feed), whereby the film is moved by one frame. The film is moved to a predetermined position (hereinafter, referred to as a supply position) at an upper portion of the reading unit, and the film moved to the supply position is taken into the reading unit, and is read by the CCD.
The information of the film in the reading unit is read using a line sensor or the like.

When the film is continuously stored in the tray, the tray is automatically advanced by one frame, and the film is sequentially sent one by one to the reading unit. The information can be read continuously by frame advance (this function is hereinafter referred to as automatic frame advance).

[Problems to be solved by the invention]

However, in the above conventional example, when it is desired to read a specific film stored in the tray, the forward button,
By using the reverse button, the user advances to the film and reads the image. This reading process consists of auto focus (AF) and auto density adjustment (AE) for each image.
Is performed, the image is converted into an electric signal using a line sensor or the like including a photoelectric conversion element. When this process is performed on a plurality of images, the frame advance and reading time become long, and the user is restrained by the work for a long time until all the operations are completed.

[Means for solving the problem]

The present invention has been made in view of the above points, and has a reading unit for reading an image recorded on a film, information indicating a head of a plurality of continuous frames before reading by the reading unit, and an end. Registration means for registering information indicating the information, and control for controlling the reading means to read the image of the continuous plurality of frames based on the information indicating the head and the information indicating the end registered by the registration means. And means.

〔Example〕

Hereinafter, the present invention will be described with reference to the illustrated embodiments. FIG. 1 is an explanatory diagram showing a schematic configuration of an image reading apparatus according to a first embodiment of the present invention. In the figure, reference numeral 1 denotes an image reading apparatus, which includes an auto-changer 5 comprising a tray 3 installed on a schematic tray base 2 and a reading unit 4 provided below the tray base 2. Is provided.

The tray base 2 is installed rotatably by an auto-engine driver circuit 6, and a plurality of storage portions 7 are formed radially at equal intervals around the center of rotation, and a slide mount 8 is mounted on each storage portion 7. Are stored one by one as an image recording medium held in the printer. And tray 3
Is rotated, the films F stored in the storage unit 7 are sequentially moved one by one to the supply position 9 above the reading unit 4, and
The film F moved to the supply position 9 is taken into the reading section 4 and the information is read.

In the vicinity of the reading section 4, the storage section 7 at the supply position 9 is provided.
As a detecting means for detecting the presence or absence of the film F in
A sensor 10 for detecting the presence or absence of the film F in the reading unit is provided.

The film F sent to the reading position 11 in the reading section 4 is a DC
Light generated from a light source 13 such as a halogen lamp connected to a power supply 12 is irradiated via a condenser lens 14, a field lens 15, and an optical filter 16. After the transmitted light is reflected by the reflecting mirror 18 via the imaging lens 17, the CCD 3 line sensor 19 is irradiated to read information.

The CCD3 line sensor 19 is composed of three line sensors provided with red, green, and blue on-chip optical filters, and is main-scanned by each line sensor, and a unit to which the CCD3 line sensor 19 is attached.
Sub-scanning is performed by moving 20 along a rail 22 in a direction perpendicular to the main scanning direction (direction d in the drawing) by a stepping motor 21.

Then, the information read by the CCD3 line sensor 19 is output as an analog signal to the analog processing circuit 23 via the cable K, is subjected to DC reproduction, amplification, A / D conversion, and is digitally processed by the digital processing circuit 24. The data is sent to the external device 26 via the ace circuit 25.

In addition, a stepping motor drive circuit 27 for driving the stepping motor 21 and an interface circuit 25 are connected to the controller 28, and the sub-scanning of the CCD3 line sensor 19 is synchronized with the external device 26 by the controller 28. Is performed. This controller 28
Is further connected to a digital processing circuit 24, a DC power supply 12, an auto-changer driving circuit 6, and a film detection circuit 29 connected to the sensor 10. The digital processing circuit 24 is set, and the output voltage of the DC power supply 12 is And the driving of the auto-tach engine 5 based on the information from the sensor 10 is controlled.
Incidentally, the switch 41 and the display unit 42 constitute a touch panel,
The controller 28 also controls the input of an operator's instruction from the switch 41 and the display of information on the display unit 42.

The auto-changer 5 is driven as shown in FIG. In the figure, a lift lever 30 has a shaft 31 in a reading unit 4.
This lift lever is installed so that it can rotate around
When the end 30a of 30 is pushed down by the cam 32,
The end 30b rises in the direction C in the drawing to move the film F at the end 30b to the supply position 9, and when no force is exerted on the end 30a by the cam 32, the spring 30 (not shown) is used. Rises in the direction opposite to the direction B, and the end 30b descends. At this time, the film F at the supply position 9 is moved to the end 30b.
Is dropped.

The cam 32 for moving the lift lever 30 up and down is linked with a feed mechanism for feeding the tray 3 in the direction A in the drawing, and the cam 32 is rotated by the drive source 33 and a plunger (not shown) included in the drive source 33. The movement of the feed mechanism 34 is controlled by such means as the forward rotation of the tray 3, that is, the film F
And the reverse rotation of the tray 3, that is, the backward movement of the film F is performed. Then, an output from a sensor (not shown) that detects the phase of the cam 32 is sent to the controller 28, and based on this information, the rotation of the cam 32 by the drive source 33 is controlled,
The movement of the lift lever 30 and the driving of the feed mechanism 34 are controlled by the pattern of the cam 32.

This controls the tray 3 to feed the frame forward or backward, and moves the film F at the supply position 9 to the reading position.
The control for dropping the film F at the reading position 11 and the control for lifting the film F at the reading position 11 to the supply position 9 are performed. Then, the tray 3 is rotated by one frame and the film F moves to the supply position 9 by one sheet, and the film F is sent to the reading position 11 to read information. Then, the film F from which the information has been read is returned to the supply position 9. This series of operations corresponds to one rotation of the cam 32, and frame repetition is performed and image reading is performed by repeating this operation. The tray detection circuit 43 is used to detect whether or not the tray 3 exists on the tray base 2 and to detect the type of the set tray 3.

Next, a means for registering the numbers of desired images of a plurality of films stored in the tray 3 to be read will be described. FIG. 3 shows a screen of a touch panel including a switch 41 and a display unit 42. The display 50 of "No. xx" indicates the current film number to be registered on the tray 3 (the number of the storage section of the tray 3), and the number is operated by the feed key 52 and the return key 53. The display 51 “0/80” indicates the number of registered films,
This indicates that 0 sheets have been registered among the max 80 sheets. There are generally two types of trays 3 to be loaded on the auto-changer 5, one capable of setting 80 sheets of film,
Some of them can set 140 films. The two types of trays are automatically determined by the device based on the output of the tray detection circuit 43 from the difference in the bottom shape, and "XX / 80" or "XXX / 140" is displayed on the screen. Send key 52 and return key
After the desired film number (for example, 25) is displayed on the display 50 by the operation of 53, the desired film number is registered by operating the registration key 54. In this case, 25
When the first film is registered, it is displayed as shown in Fig. 4.
The display of “No. 25” is displayed on 50, and the display of “(Registration)” 55 is further performed, indicating that the film number of “No. 25” has already been registered.

In the same manner, by operating the feed key 52 and the return key 53, it is possible to register the desired film numbers as many as the number of sheets that can be stored in the maximum tray. After registration as required, the registration is terminated by pressing the end key 57, and the screen shifts to a screen for instructing the start of image reading. This registered film number is stored in the controller 28
Is stored in the internal memory. By pressing the cancel key 55, the registration of the already registered film number can be canceled.

The reading process of the film image registered as described above will be described with reference to the flowchart of FIG. Third
After a frame number is registered (step) in accordance with the procedure described with reference to FIG. 4 and FIG. 4, when a start key (not shown) is pressed (step), the controller 28 issues a forward instruction to the drive source 33 (step), and 3 is rotated by one frame in the forward direction. As a result, the film F of the storage unit 7 moved to the supply unit 9 is taken into the reading unit 4.

Then, it is determined whether or not the film F is registered (step). If the film is registered, the image of the film F in the reading unit 4 is read (step). If not, return the film F to the tray without performing the reading operation, and then
Is further advanced by one frame (step).

After the reading, the film F is returned to the tray 3, and it is determined whether or not reading of all the registered films is completed (step). If there is still more, the tray 3 is advanced by one frame (step), and if completed, the reading process is terminated.

After the reading is completed, it is determined whether the last read film number is at the first half position or the second half position with respect to the tray (step). That is, when the maximum number of films that can be stored in the tray is 80, it is determined whether A ≧ 40 or A <40 with respect to the final film number A. When A ≧ 40, control is performed to return the tray to the position of 0 more quickly, ie, to move forward when A <40, and to reverse when A <40.

That is, when A ≧ 40, the tray is moved forward by one frame (step), and when A <40, the tray is moved backward by one frame (step), and both are advanced until the tray 3 comes to the position of 0. (Step,), the operation ends.

In this way, the number of images to be scanned can be specified by number, so if only the required film number is registered at the time of initial setting, the image is automatically registered simply by pressing the image reading start key. Only the read film is read, and the process ends. Further, if only the initial setting is performed, the apparatus automatically performs the rest, so that the apparatus can be used without requiring the user. Further, since only the number is registered, there is no need to bother sending the film image one by one, and registration can be performed in a very short time if there is a correspondence between the frame number and the film image.

As described above, by registering a desired one or a plurality of film numbers among a plurality of rice films stored in the tray 3, a reading operation in which the unnecessary frame film is skipped is executed. Therefore, it is possible to efficiently read only a desired film image from a plurality of films without the need to continuously store only the desired film in the tray again.

Second Embodiment FIG. 6 is a diagram showing a display screen of a touch panel according to a second embodiment of the present invention. Display No. 13 to No. 17 60
Are generally described as “No. A to No. B”. The maximum number of films entering the tray 3 is defined as Tmax.

In the mode of the second embodiment, a film image to be read is registered in a range on the tray 3. First, the value of A is set. That is, the feed key 62 and the return key
Operate 63 to determine the desired start number.

This process is shown in FIG. When a key is operated, it is determined whether the forward key 62 or the return key 63 has been pressed. When the feed key 62 is pressed, the displayed value of A is Tm.
ax If not, add 1 to the value of A The result is displayed on the display 60. On the other hand, when the value of A is equal to Tmax, the value of A is set to 0 because there is no more numerical value. Similarly, when the return key 63 is pressed, it is determined whether or not the displayed value of A is 0. If it is different, subtract 1 from the value of A and display If A = 0, display Tmax The value A of the first film number determined in this way is set by pressing the registration key 64, and then the operation proceeds to the operation of setting the value B. By setting the value of B in the same manner, the range of image reading is determined as film numbers A and B. If the user wants to correct it, by pressing the cancel key 65, the values of A and B are cleared and set to 0, and the setting is redone. As described above, the display 61 displays the registered number of sheets relative to the maximum number of sheets stored in the tray. In the example of FIG. 6, since the film numbers 13 to 17 are registered, the display 61 is "5/80". .

The reading of the film image is performed in the range set in the same manner as in the previous embodiment. If the film is missing within the range, the film detection circuit 29 also controls to advance to the next frame without automatically reading the image of the frame.

8 and 9 are schematic diagrams viewed from the upper side of the tray. FIG. 8 shows a case where the film numbers are designated as 21 to 35, and FIG. 9 shows a case where the film numbers are designated as 51 to 65. The pattern is shown. In the case of FIG. 8, the tray 3 first moves forward from the position of the number 0, sequentially reads images from the 21st to 35th sheets, and then moves backward to return the tray 3 to the 0 position. Is the fastest. In the case of FIG. 9, the tray 3 is first moved backward to read the image from the 65th sheet, and after finishing the 51st sheet, the process of moving the tray 3 forward and returning it to the 0 position does not take much time.

The sequence for speeding up will be described with reference to FIG. No. A to No. B of the above-mentioned range designation are used. First, the value of A is compared with 40 in order to obtain the distance between the value of A and the 0 position of the tray 3 (hereinafter, referred to as home position HP). This is when using a tray that can hold up to 80 sheets.
In the case of a tray for storing sheets, the number is 70. Here, a description will be given below assuming that a tray storing 80 sheets is used.

If A <40, put the value of A into C If A ≧ 40, put the value of 80-A into C The value of C is the distance between A and the tray HP.

Do the same for the value of B The distance between B and the tray HP is entered as the value of D. Then compare C and D As a result, it is determined which of the first value A and the last value B of the registration range is closer to the tray HP. If A is closer, first advance and read images sequentially from A to B. On the other hand, if B is close, go backward and read the image from B to A Thereafter, similarly to the above-described embodiment, it is determined whether the position at the end of reading is closer to the forward side or the backward side with respect to the tray HP. Return Tray HP by moving Tray 3 to the near side finish.

This operation can be controlled not only when the range is specified but also when one or a plurality of film images are separately registered in the same manner.

If the configuration is such that the corresponding film images are registered while confirming each film image by the viewer while performing the tray operation in accordance with the operation of the feed key and the return key in the registration of the film number described above, the recognition of the image to be registered is performed. Registration is easy to understand and hard to make mistakes.

In addition, after the registration, the image is read by the number of the automatically registered images with one start key, and the user is not restricted by the operation during the reading.

[Effects of the Invention] As described above, according to the present invention, it is possible to efficiently read images of a plurality of continuous frames.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a schematic configuration of an information reading apparatus according to a first embodiment of the present invention, FIG. 2 is an explanatory diagram showing a configuration of an auto-changer in the embodiment, FIG. 3 and FIG. FIG. 5 is a flowchart showing a touch panel screen in a mode, FIG. 5 is a flowchart showing an operation in the embodiment, FIG. 6 is a diagram showing a screen in a range registration mode, FIG. 7 is a flowchart showing key operation, FIG. FIG. 9 and FIG. 9 are schematic views of the tray, and FIG. 10 is a flow chart of the operation of another embodiment. DESCRIPTION OF SYMBOLS 1 ... Information reading device 3 ... Tray 4 ... Reading part 5 ... Auto changer 7 ... Storage part 10 ... Sensor (detection means) 28 ... Controller F ... Film (information recording medium)

────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Tsutomu Utagawa 3-30-2 Shimomaruko, Ota-ku, Tokyo Inside Canon Inc. (56) References Special Table 62-503131 (JP, A) (58) Survey Field (Int.Cl. ⁷ , DB name) H04N 1/04-1/207

Claims (5)

(57) [Claims] A reading means for reading an image recorded on a film; a registration means for registering information indicating a head and an end of a plurality of continuous frames before reading by the reading means; Control means for controlling the reading means to read the image of the continuous plurality of frames based on the information indicating the head and the information indicating the end registered by the registration means. Film image reading device. 2. A film image reading apparatus according to claim 1, further comprising display means for displaying a frame number. 3. A film image reading apparatus according to claim 2, wherein said display means further displays the number of frames that can be registered. 4. A film image reading apparatus according to claim 2, wherein said display means further displays the number of frames already registered. 5. The film image reading apparatus according to claim 1, further comprising a selection unit for selecting the information indicating the head and the information indicating the end.