JPH10177212A - Camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To imprint with LED light in order to record color correction information in the case of using a film scanner, to prevent the color correction information from being erroneously recorded due to double exposure with the LED light at the time of winding a film equipped with a magnetic recording part and also at the time of winding the film at a rewriting operation, in the case of loading a partial exposure cartridge peculiar to the film equipped with the magnetic recording part. SOLUTION: A film 28 winding/rewinding operation is performed by a film feeding mechanism 38, and the color correction information which is regarded as a reference at an electronic image pickup processing by the film scanner is imprinted near the photographed frame of the film 28 by using the light emitting diode 32. The luminance of the light emitting diode 32 is adjusted by a constant current circuit 31, and light is emitted from the light emitting diode 32 under the control of a microcomputer 11 with plural types of luminance adjusted by the constant current circuit 31.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera capable of preliminarily recording color correction information on a film at the time of photographing, in order to perform color correction with a film scanner for optically reading photographing information of the film. is there.

[0002]

2. Description of the Related Art In recent years, a film with a magnetic recording section capable of reading and recording various data such as photographing information has been developed, and various cameras using the film with the magnetic recording section have been developed. Then, it is determined whether or not the color correction information is to be imprinted on the basis of whether or not the film has been photographed on the film with a magnetic recording portion, and whether the cartridge loaded with the film is an “unexposed” or “partially exposed” cartridge There has been developed a technique for identifying an image and obtaining an image with good color reproducibility according to each state.

For example, Japanese Patent Application Laid-Open No. Hei 8-101443 discloses a technique in which, when photographing is started, a reference exposure pattern is first exposed on a film. Further, Japanese Patent Application Laid-Open No. 63-194245 describes a camera provided with a reference color imprinting means for imprinting a color serving as a reference at the time of enlargement printing at the same time as photographing on a film.

[0004]

However, in the technique described in Japanese Patent Application Laid-Open No. H8-101443, it is necessary to provide a wide area for exposing the reference exposure pattern on the film, so that the film frame is wasted. Would. In addition, since the reference exposure pattern is recorded at the beginning or end of the film, before capturing the film image with the film scanner, the film is wound up or rewound to acquire the color correction information, and thereafter, a further desired image is taken. The operation has to be performed after the pieces have been fed, which makes the operation complicated.

In the camera described in Japanese Patent Application Laid-Open No. 63-194245, there is no description about color correction information that is used as a reference during electronic image pickup processing by a film scanner. In addition, since this camera captures images with a single luminance, there is a problem that correction of the incident light amount-output voltage characteristic can be performed at only one point, and the inclination of the correction straight line cannot be corrected.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has been made in consideration of whether color correction information is to be printed based on whether or not a photograph has been taken without wasting film frames and without complicating the operation. It is an object of the present invention to provide a camera that can determine the color correction information and prevent the color correction information from being destroyed to obtain an image with good color reproducibility.

[0007]

That is, the present invention provides a film feeding means for winding and rewinding a film, and a color correction information which is a reference at the time of electronic image pickup processing by a film scanner, is copied in the vicinity of a photographed frame of the film. A light-emitting element to be inserted, luminance adjusting means for adjusting the luminance of the light-emitting element, and light-emitting control means for causing the light-emitting element to emit light with a plurality of luminances adjusted by the luminance adjusting means.

According to the present invention, film winding and rewinding are performed by the film feeding means, and color correction information, which is a reference at the time of electronic image pickup processing by the film scanner, is provided near the photographed frame of the film by the light emitter. Imprinted. The luminance of the illuminant is adjusted by the luminance adjusting means, and the illuminant is emitted by the emission control means at the plurality of luminances adjusted by the luminance adjusting means.

[0009] With this, the color correction information, which is a reference at the time of the electronic image pickup processing by the film scanner, is printed in the vicinity of the photographing frame, so that it is extremely easy to take in the color correction information when the film image is picked up by the film scanner. Become. In addition, since color correction information is projected by a plurality of luminances, a straight line passing through two adjacent points is interpolated, so that the amount of incident light-output voltage characteristic of the image sensor of the film scanner can be obtained from the exposure-development density characteristic by the color correction information. Correction of the inclination and offset of the correction straight line representing Further, double imprinting of the color correction information is prohibited, so that erroneous color correction information can be prevented from being recorded.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a configuration for explaining a first embodiment of a camera according to the present invention.

In the camera shown in FIG. 1, the microcomputer 11 controls the operation of the entire camera. The microcomputer 11 includes a photometric circuit 12 having a known configuration, a distance measuring circuit 13, a shutter control mechanism 14,
A focus adjustment mechanism 15, a display circuit 16 for displaying various information such as shooting information, date, and operation mode of the camera;
A storage circuit 17 for storing the number of film frames, camera adjustment data, and the like constituted by a PROM is connected.

Further, the microcomputer 11 has a release switch (R) for starting an exposure operation.
ELSW) 18, a rewind switch (REWSW) 19 that is operated when rewinding the film whose shooting has been completed to the film cartridge, a power switch (PWSW) 20 linked to the power supply of the camera, and the film cartridge is loaded into the camera. And a cartridge detection switch (PTSW) 21 that is turned on, and a rewrite switch (RWRSW) that is operated when the magnetic recording operation is performed again.
22 are connected.

Further, a magnetic head 25 is connected to the microcomputer 11 via a magnetic recording circuit 24. The magnetic head 25 is housed in the film cartridge 26 at the start of use, and
It is used to record data on a magnetic layer (not shown) on the film 28 wound between the layers 7 and to detect that data is recorded on the magnetic layer on the film 28. By controlling the magnetic recording circuit 24 with the magnetic head 25, data can be recorded on the film 28. On the other hand, by controlling the magnetic detection circuit 24, it is possible to detect whether or not there is data on the film 28.

A technique for recording data on the magnetic layer on the film 28 by the magnetic head 25 and a technique for detecting data are described in the above-mentioned Japanese Patent Application No. 8-184904 and Japanese Patent Application No. Hei 5-14204
No. 5, the description is omitted here.

On the film cartridge 26, a bar code 29 is formed on its spool shaft. The barcode 29 stores the sensitivity of the film 28 and the number of shots. The data stored in the barcode 29 is detected by a photo reflector (PR) 30.

The initial position of the spool shaft of the film cartridge 26 can be detected from a bar code 29 signal. By detecting the initial position, it is determined that the film cartridge 26 loaded in the camera is in one of the “unexposed”, “partially exposed”, “exposed”, and “developed” cartridge states.

In the vicinity of the film 28, three colors of red, green, and blue (so-called R,
G, B) light emitting diode (LED) 32
A photo-reflector (PR) 33 for detecting perforations (not shown) of the film 28; a disk 34 with slits and a photo-interrupter (PI) 35 for measuring the amount and speed of movement of the film 28
Are arranged respectively.

The constant current circuit 31 is a constant current source which is controlled by a signal from the microcomputer 11 and can change the value of the LED current flowing through the LED 32.
The disk 34 with a slit rotates in conjunction with the movement of the film 28, and a photo-interrupter 35 is provided.
Is to change the output signal by reading the disk 34 with slits.

The output signals of the photoreflectors 30 and 33 and the photointerrupter 35 are supplied to a signal processing circuit 36.
Is converted into a signal that can be input to the microcomputer 11. That is, the output signal of the photoreflector 33 is supplied to the input port P-PR,
The output signal of 0 is supplied to the input port P-BPR, and the output signal of the photo interrupter 35 is supplied to the input port P-PI.

Control of winding and rewinding of the film 28 is performed by a motor connected to a film feeding mechanism 38 via a drive circuit 37. Next, the film feeding mechanism 38 of the camera will be described.

FIG. 2 is a perspective view of the film feeding mechanism 38 seen from behind the camera. This film feeding mechanism 3
The state 8 shows the state immediately after the film cartridge 26 is loaded in the camera body.

A pinion gear 42 is provided on an output shaft of a film winding / rewinding motor (M1) 41 provided in the camera body. The pinion gear 42 is engaged with a sun gear 43. Furthermore, this sun gear 43
Are engaged with the planetary gear 45 by the gear arm 44. The planet gear 45 is formed by the gear arm 44 described above.
It is supported so as to revolve around the rotation axis of the sun gear 43.

A take-up spool 27 for taking up a film is rotatably provided in a film take-up chamber provided on the right side as viewed from the rear of the camera body. A spool gear 46 that meshes with the planetary gear 45 when the planetary gear 45 revolves counterclockwise is integrally provided on the upper end surface of the take-up spool 27. The film pressing plate 47 presses the film against the winding spool 27 by the tension of the spring 48.

When the planetary gear 45 revolves clockwise, the idle gear 50 is brought into a position where the planetary gear 45 meshes with the planetary gear 45.
Is provided. This idle gear 50 is gear 5
1, 52 and 53 are connected to a coupler gear 54 described later. On the left side from the rear of the camera body, there is a cartridge storage chamber for storing the film cartridge 26.

Above the cartridge storage chamber, a coupler gear 54 having a coupler 55 whose tip projects in a "-(minus)" shape is rotatably provided. As shown in FIG. 3, the coupler 55 engages with a groove provided on an upper end surface of a feed spool 56 provided on the film cartridge 26, and is integrated with the feed spool 56 around the axis. .

The camera main body is provided with a film feed motor (M2) 58. A pinion gear 59 is provided on the output shaft of the film delivery motor 58. The pinion gear 59 meshes with the sun gear 60, and the sun gear 60 further
1 meshes with the planetary gear 62. The planet gear 62 is supported by the gear arm 61 so as to revolve around the rotation axis of the sun gear 60.

Since the tension of the spring 63 acts on the gear arm 61, only when the film feed motor (M2) 58 rotates counterclockwise, the planetary gear 62 and the idle gear 5 are rotated.
3 engages.

The film 28 is provided with a perforation for defining the position of the film and detecting the position. FIG. 3 is a diagram showing the configuration of the film cartridge and the film.

As shown in FIG. 3, a perforation 28 is provided on the left and right of the exposure area 28a of each frame of the film 28.
b is formed. Further, a magnetic recording area 28c is formed on the side of the exposure area 28a opposite to the side on which the perforations 28b are formed.

The film 28 is exposed to light from an opening 65 of the camera body. In the vicinity of the opening 65, the above-described magnetic head 25, LED 32, photo reflector 33, photo interrupter 35 and the like are arranged. In this case, the LEDs 32 are arranged laterally above the opening 65 and in the vicinity of the photoreflector 33 so that the LED 32 projects from the emulsion surface of the film 28 and the LED light is projected onto the upper part of the frame of the film 28. ing. Note that the arrangement order of the LEDs 32 is not specified.

The photo reflector 33 is disposed above the opening 65, and the magnetic head 25, the photo interrupter 3
5 is arranged below the opening 65. A pad 66 is arranged so as to face the magnetic head 25 and sandwich the film 28 therebetween. This pad 66 is used for the leaf spring 6.
7, and is pressed against the film 28 by the tension of the leaf spring 67. The magnetic head 25 is positioned in the exposure area 2
Data is recorded in a magnetic data recording area 28c provided below 8a.

The outer periphery of the roller member 68 is formed of rubber or the like, and rotates in conjunction with the movement of the film 28. The above-described disk with slit 34 is integrated with the rotation shaft of the roller member 68. Therefore, when the roller member 68 rotates in a predetermined direction, the disk 34 with slits is rotated.
Rotates. Each time the slit of the slit disk 34 crosses the photo interrupter 35, a signal serving as a reference for the timing of the recording operation is output from the photo interrupter 35.

Next, the operation of the camera of this embodiment will be described. 4 and 5 are flowcharts showing a main routine of the operation of the camera. In the following description, the reference numerals of the components shown in FIG.

First, when the power of the camera system is turned on, the microcomputer 11 is power-on reset. Then, in step S1, the microcomputer 11 initializes an I / O port and initializes a memory. Subsequently, in step S2, the microcomputer 11 detects the cartridge detection switch (P
TSW) 21 is determined. Here, PTSW2
When "1" changes from "off" to "on", step S3
Move to.

In step S3, since the initial position of the spool shaft can be detected from the barcode 29, it is possible to determine whether the state of the film cartridge is "unexposed" or "partial exposure".

Although not described in the flow charts of FIGS. 4 and 5, if it is found that the cartridge is in the "exposed" or "developed" state, the idle feeding operation of the film after step S4 is not performed. , Is notified to the photographer as an empty feed failure.

In step S4, the film sensitivity and the number of frames are read from the bar code 29. Next, step S5
, The microcomputer 28 pulls out the film 28 from the film cartridge 26 and winds the film 28 on the take-up spool 27. Then, the film 28 is moved so that the exposure area 28a of the first frame of the film 28 matches the opening 65 of the camera body.

If it is determined in step S3 that the film cartridge 26 is "unexposed", it is possible to immediately take a picture in this state, but if it is determined that the film cartridge 26 is "partially exposed". Is executed from step S6.

If it is determined in step S6 that the film is a "partially exposed" film, it is detected that data has been recorded on the magnetic recording layer of the photographed frame. Thus, an unexposed frame on which no data is recorded is detected. This technique is described in Japanese Patent Application No. Hei 8-296060 previously filed by the present applicant, and therefore the description is omitted. On the other hand, if it is determined in step S6 that the exposure is not partial exposure, the process returns to step S2.

In step S7, one of the following steps S8
The imprinting flag is set to "1" so that imprinting is not performed when the frame is wound up. While winding one frame, a signal shaped by a magnetic detection circuit (not shown) is detected at an input port of the microcomputer 11, and whether or not data is recorded is determined based on whether the number of pulses of the signal is equal to or more than a predetermined number of pulses per frame. Is determined. Therefore, step S is executed until a frame without data is found.
8 and S9 are repeated. If a frame with no recorded data is found, the position of the film 28 is far beyond the position of the opening 65 of the camera (therefore, it is necessary to return the frame by one frame).

For this reason, a process of rewinding an excessively advanced film by two frames and winding it by one frame is performed, so that the position of the unexposed frame can be correctly set in the opening 65. Further, in order to increase the accuracy of the distance between frames (that is, the stop of the film feed), it is necessary to stop the feed of one frame in the winding direction. Therefore, in the following steps S10 and S11,
The film 28 is rewound by two frames. The rewinding of one frame will be described later with reference to FIG.

In step S12, one frame is wound up. The details of the one-frame winding operation will be described later.
When the winding of one frame is completed in this way, preparation for shooting is completed, and the process returns to step S2.

On the other hand, in step S2, the PTS
If there is no change in the state of W21, the process proceeds to step S13, and the microcomputer 11 determines the state of the rewind switch (REWSW) 19. Here, when the REWSW 19 changes from “off” to “on”, the process proceeds to step S14, and the operation of rewinding the film 28 to the film cartridge 26 is performed. After that, the process returns to step S2, and the processes after step S2 are repeated.

On the other hand, in step S13, REWS
If it is determined that there is no change in W19, step S1
Then, the state of the power switch (PWSW) 20 is determined. Here, when the PWSW 20 is “OFF”, the microcomputer 11 repeats the processing loop of the main routine.

If it is determined in step S15 that the PWSW 20 is "ON", the process proceeds to step S16. In step S16, the microcomputer 11 calculates the shutter speed Tv and the aperture value Av based on the luminance data received from the photometry circuit 12 and the sensitivity data read in step S4. Next, in step S17, the calculated shutter speed Tv and aperture value Av are displayed on the display circuit 16.

Next, at step S18, the microcomputer 11 controls the release switch (RELSW).
18 states are determined. Here, if there is no change in the RELSW 18, the process proceeds to step S24. On the other hand, RE
If the LSW 18 is "ON", the process proceeds to step S19, where the microcomputer 11 controls the distance measuring circuit 13
The distance to the subject (subject distance) is calculated based on the data output from.

In step S20, the focus adjustment mechanism 15 is controlled based on the data on the subject distance.
Further, in step S21, the Tv value already calculated,
The exposure to the film 28 is performed by controlling the shutter control mechanism 14 based on the Av value. In step S22,
The imprint prohibition flag is set to "0", and imprinting is performed by winding up one frame of the film in the subsequent step S23.

Next, at step S24, the microcomputer 11 causes the microcomputer 11 to execute a rewrite switch (RWRS).
W) The state of 22 is determined. Here, RWRSW22
If there is no change, the process returns to step S2, and the processes after step S2 are repeated. On the other hand, when the RWRSW 22 is "ON", the process proceeds to step S25, and the microcomputer 11 rewinds the film 28 by one frame.

Next, in step S26, the imprinting inhibition flag is set to "1" to prevent imprinting when the film 28 is wound up. Then, in step S27, the information newly set by the photographer is recorded by the magnetic recording circuit 24 and the magnetic head 25 while the film 28 is wound by one frame. However, at this time, since one frame after exposure is wound up and the LED light is once projected, the film 28 is wound up so that the LED light is not double-imprinted.

Although the rewrite operation is not described here, a technique relating to rewrite is described in Japanese Patent Application No. 8-184904 filed by the present applicant.

After the above processing, the process returns to step S2. Next, the operation of the subroutine "winding one frame" will be described with reference to the flowchart of FIG. In this subroutine, the exposed film is wound up by one frame. If the imprinting is permitted, the imprinting by the light emitting diode 32 is performed during the execution of this subroutine.

When the subroutine "winding one frame" is started, parameters relating to imprinting are read from the storage circuit 17 by the microcomputer 11 in step S31. Further, in step S32, the film end flag and PRCNT are cleared ("0" is set). Here, PICNT is a register for counting pulse signals output from the photo-interrupter 35, and PRCNT is a register for counting changes in the signal from the photo-reflector 33.

Subsequently, in step S33, the microcomputer 11 sets the applied voltage (V _m1 ) of the motor (M1) 41, and in step S34, the motor (M1) is set.
1) 41 is turned on. This operation is performed at the timing of * 1 on the timing chart shown in FIG. 7, whereby the film 28 starts to move.

Next, in step S35, the state of the imprint prohibition flag is determined. Here, if the imprinting inhibition flag is “1”, the process proceeds to step S48,
If "0", the process moves to step S36. In this step S36, the microcomputer 11 determines whether or not a PI pulse has been input from the state of the input port P-PI. As a result, if the PI pulse has not been input, the process proceeds to step S48, and if the PI pulse has been input, the process proceeds to step S37.

In step S37, the microcomputer 11 increments (+1) a register PICNT for counting the number of PI pulses. Next, in step S38, it is determined whether _PICNT is equal to a predetermined number P _LSTA . This predetermined number P _LSTA represents the _imprint start position on the film 28 (corresponding to the timing of * 2 on the timing chart shown in FIG. 7). Note that the predetermined number P _LSTA is read from the storage circuit 17 in step S31.

In the above step S38, PICNT
_Is equal to P _LSTA , the _{process proceeds} to step S39 to start _imprinting . Then, in step S39, in order to control the amount of light emitted from the light emitting diode 32,
The LED current value _IL is sent to the constant current circuit 31 prior to light emission. Next, in step S40, the control signal for turning on the light emitting diode 32 is output from the constant current circuit 31, so that the light emitting diode 32 is turned on, and imprinting is started.

In step S41, the above-mentioned step S37 is executed.
It is determined whether or not the counter PICNT incremented by the _above is equal to the predetermined number P _LEND . This predetermined number P
_LEND indicates the position of the interruption of _imprinting on the film 28 (corresponding to the timing of * 3 on the timing chart shown in FIG. 7).

In the above step S41, PICNT becomes P
If it is equal to _LEND , the process moves to step S42 to _{stop imprinting} . Then, in step S42, the constant current circuit 3
By outputting a control signal for turning off the light emitting diode 32 from 1, the light emitting diode 32 is turned off. In this case, the light emitting diode 32 is turned off for a movement amount in which the horizontally arranged LED lights do not overlap.

Next, in step S43, it is determined whether or not the count PICNT is equal to the predetermined number _PHSTA . This predetermined number P _HSTA indicates the position on the film 28 at which the _imprinting is restarted (corresponding to the timing of * 4 on the timing chart shown in FIG. 7).

In step S43, if _PICNT is equal to the predetermined number P _HSTA , the flow shifts to step S44 to restart _printing . Then, step S44
In order to control the amount of light emitted from the light emitting diode 32,
The LED current value _TH is sent to the constant current circuit 31 prior to light emission. Next, in step S45, the constant current circuit 31
Outputs a control signal for turning on the light emitting diode 32, and the light emitting diode 32 is turned on.

Next, in step S46, whether or not the counter PICNT a predetermined number P _HEND are equal or not. This predetermined number P _HEND indicates the position of the end of _imprinting on the film 28 (corresponding to the timing of * 4 on the timing chart shown in FIG. 7).

In the above step S46, PICNT becomes P
If it is equal to _HEND , the process moves to step S47 to end the imprint. Then, a control signal for turning off the light emitting diode 32 is output from the constant current circuit 31 in order to end the light emission of the light emitting diode 32, so that the light emitting diode 32 is turned off.

The predetermined numbers I _L , I _H , P _LSTA , P _LEND ,
P _HSTA and P _HEND are used to determine the timing of turning on and off the LED 32 based on the feeding speed of the winding and the length of the light emitting diode 32 in the horizontal direction (length of arrangement). The LED current value is obtained according to the sensitivity of the film 28 as shown in Table 1 below so that the target exposure amount is obtained from the above timing.

[0064]

[Table 1]

The predetermined number is read from the storage circuit 17 in step S31. When the imprinting is performed as described above, as shown in FIG. 8, the imprinting by the light emitting diode 32 is performed in two shades of 70a and 70b. In this case, the imprinted patterns 70a and 70b represent a thin portion and a dark portion depending on the sparseness and denseness of the hatched portion.

Next, the processing when the perforation 28b provided on the film 28 is detected will be described. If the imprinting inhibition flag is "1" in step S35, if no PI pulse signal is input in step S6, or if step S4
If the value of the register PICNT is not equal to the predetermined number P _{HEND in} step S6, or after the processing in step S47, the process proceeds to step S48.

In step S48, the microcomputer 11 determines whether or not there is a change in the signal of the photoreflector 33 from the input port P-PR. Here, when the change is detected, the process proceeds to step S49, and the register PRCNT for counting the signal edges of the photo reflector 33 is incremented (+1).

Subsequently, in step S50, PRCNT
Is determined to be equal to # 2. Where PR
If the value of CNT is equal to # 2, the process moves to step S51.

When the signal of * 6 on the timing chart shown in FIG. 7 is detected, it is understood that the winding operation of the film 28 has come to an end. In order to easily stop the film 28, it is necessary to reduce the speed, and it is necessary to terminate the magnetic recording. This is because a gap is provided between the area where the magnetic data of the next frame is recorded and the current recording area for convenience in reproducing magnetic data.

Therefore, in step S51, the short brake is applied to the motor (M1) 41 for a predetermined time (T _S1 on the timing chart shown in FIG. 7), and in step S52, the motor (M1) 41 The applied voltage drops (V _m2 on the timing chart shown in FIG. 7). As described above, by reducing the short brake and the voltage, the speed of the film 28 rapidly decreases.

If it is determined in step S48 that the signal from the photoreflector 33 has not changed, the process proceeds to step S3.
6, and the processes from step S36 are repeated. In step S50, the value of PRCNT is #
If not equal to 2, the process proceeds to step S53 and PR
It is determined whether the value of CNT is equal to # 4. If the value of PRCNT is not equal to # 4, the process returns to step S36. On the other hand, in step S53, PR
If the value of CNT is equal to # 4, the hoisting operation ends. Therefore, in step S54, the microcomputer 11 turns off the light emitting diode 32 for imprinting just in case.

Subsequently, at step S55, the motor (M
1) The short brake is applied to 41 for a predetermined time (T _S2 on the timing chart shown in FIG. 7). Further, in step S56, a negative voltage is applied to the motor (M1) 41 for a predetermined time (T _R on the timing chart shown in FIG. 7). Then, in step S57, the short brake is applied to the motor (M1) 41 for a predetermined time (T _S3 on the timing chart shown in FIG. 7).

The film 28 is completely stopped by the processes in steps S55 to S57. Thus, the subroutine "1 frame winding" is completed. _{Incidentally, V m1, V m2, T} S1, T S2, T S3 is a parameter relating to film speed control on the timing chart shown in FIG. 7, T _R
Should be stored in the storage circuit 17 in advance. This makes it possible to set optimum parameters according to the individual manufacturing characteristics of the film feeding mechanism 38 and the environment in which the camera operates.

FIG. 9 is a timing chart for explaining the operation of "winding one frame" at the time of rewriting. The operation according to the timing chart of FIG. 9 is basically the same as the timing chart of FIG. 7, except for the following two points.

That is, in the winding for rewriting,
Since the length of the film is longer than the winding after shooting,
In this operation, the length of the film to be wound is longer than one frame. Further, at the time of winding, the LED current is set to zero to prevent imprinting.

Next, the operation of the subroutine "one frame rewind" will be described with reference to the flowchart of FIG. When the subroutine "Rewind one frame" starts,
In step S61, first, the microcomputer 11 uses the hoisting / rewinding motor (M
1) 41 control parameters are read. Next, in step S62, the register PRCNT is cleared (set to "0"). The register PRCNT is a register for counting a change in a signal from the photoreflector 33.

Subsequently, in step S63, the microcomputer 11 sets the voltage (V _m1r ) applied to the motor (M1) 41. Then, step S64
Then, the motor (M1) 41 is turned on so as to rotate in the counterclockwise direction. As a result, the film 28 starts moving in the rewinding direction.

Next, in step S65, the microcomputer 11 determines whether or not the signal of the photoreflector 33 input to the input port P-PR has changed. Here, this determination is repeated until there is a change in the signal of the photoreflector 33, and when there is a change in the signal, the flow shifts to step S66 to increment (+1) the PRCNT.

Then, in step S67, the microcomputer 11 determines whether or not the value of PRCNT is equal to # 6. Here, the value of PRCNT is #
If it is equal to 6, the _{process proceeds} to step S68, and the short brake is applied to the motor (M1) 41 for a predetermined time (T _S1r ). FIG. 11 is a timing chart for explaining the operation of this subroutine "one frame rewind". The operation in step S68 corresponds to * 11 on this timing chart.

Subsequently, in step S69, the microcomputer 11 reduces the voltage applied to the motor (M1) 41 to a predetermined value (V _m2r ). After that, the process returns to step S65, and the processes after step S65 are repeated. Thus, the film speed is reduced by the operations of steps S68 and S69.

On the other hand, in step S67, the PR
If the value of CNT is not equal to # 6, step S70
To the PRCN by the microcomputer 11
It is determined whether the value of T is equal to # 8. If the value of PRCNT is not equal to # 8 in step S70, the process returns to step S65, and the processing from step S65 is repeated.

If it is determined in step S70 that the value of PRCNT is equal to # 8, the process proceeds to step S71. In the timing chart of FIG.
Passes through the perforation P4, the value of PRCNT becomes # 8. At this time, the process shifts from step S70 to step S71. The process of step S71 corresponds to * 12 on the timing chart of FIG. In step S71, the microcomputer 11 _{applies a} short brake to the motor (M1) 41 for a predetermined time (T _S2r ).

Subsequently, in step S72, the microcomputer 11 applies a positive voltage to the motor (M1) 41 for a predetermined time (T _Rr ). Further, in step S73, the motor (M) is _{turned on for} a predetermined time (T _S3r ).
1) A short brake is applied to 41.

As described above, the film 28 is completely stopped by the processing in steps S71 to S73. Thereafter, this subroutine ends, and the routine returns. The control parameters of the motor (M1) 41, V _m1r , V
_{m2r, T S1r, T S2r,} T S3r, T Rr should previously stored in the memory circuit 17. This makes it possible to set optimum parameters in accordance with the characteristics of the film feeding mechanism 38 in manufacturing.

Next, a second embodiment of the present invention will be described. FIG. 12 is a block diagram showing a configuration for explaining a second embodiment of the present invention. In the embodiment described below, the same parts as those in the above-described embodiment are denoted by the same reference numerals, and description thereof will be omitted.

In the second embodiment, a constant current circuit 71 and a light emitting diode 72 are added to the camera having the configuration shown in FIG. This is characterized in that the LED light can be projected at two different densities at the same time.

The constant current circuit 71 controls the value of a current flowing from the microcomputer 11 to the light emitting diode 72 and the on / off of the light emitting diode 72, similarly to the constant current circuit 31. The light emitting diode 72 is red,
It is a light emitting element that can emit three kinds of LED light of green and blue.

FIG. 13 is a perspective view of the film feeding mechanism 38 according to the second embodiment as seen through from behind the camera. In the figure, the light emitting diodes 32 and 72 are arranged laterally below the opening 65 so that the light emitting diodes 32 and 72 are both imprinted below the film frame. In addition, LED32
Although the order of arrangement of the colors of and 72 is not specified, the LEDs 32 and 72 are arranged such that LEDs of the same color are arranged at corresponding positions.

FIG. 14 is a diagram showing a pattern of LED light projected according to the second embodiment. According to this, below the exposure area 28a of the film 28,
Patterns 74, 7 imprinted by LEDs 32, 72
5 are formed as shown. In this case, it is assumed that the imprinted patterns 74 and 75 represent a thin portion and a dark portion depending on the sparse and dense state of the hatched portion.

FIG. 15 is a flowchart for explaining an exposure sequence in the case where the imprint timing is performed at the time of exposure. Note that the exposure sequence in the second embodiment corresponds to step S21 in the flowchart of FIG. 5, and in this case, it is not necessary to take an image during winding one frame in step S23. Therefore, it is only necessary to set the imprinting inhibition flag in step S22 to "1".

Hereinafter, the exposure operation will be described with reference to the flowchart of FIG. In step S16 of the flowchart of FIG. 5, the exposure time is calculated from the luminance information of the object field and the film sensitivity information. First, in step S81, a timer for measuring the shutter time is set and started. Is done. Then, in step S82, a time (T) is set in a timer for measuring the imprint time, and the operation is started. In this case, as shown in Table 2 below, the printing time varies depending on the film speed.

[0092]

[Table 2]

Next, in step S83, a shutter motor (not shown) is driven to open the shutter.
After the LED current data I _L of the light emitting diode 32 to the constant current circuit 31 is set in step S84, the light emitting diode 72 to the constant current circuit 71 in step S85 L
ED current data I _H is set. Then, step S
At 86, a control signal to turn on the light emitting diodes 32 and 72 is output to both the constant current circuits 31 and 71.

Here, in step S87, it is determined whether or not the counting of the timer for counting the shutter time has ended. If the time measurement has been completed in step S87, the process proceeds to step S88, in which the shutter motor (not shown) is rotated in the reverse direction and the shutter starts to close. On the other hand, if it is determined in step S87 that the timing has not been completed, the process proceeds to step S89.

In step S89, it is determined whether or not the counting of the timer for counting the imprinting time has ended. Here, if the clocking of the imprinting time has been completed, step S
Then, the microcomputer 11 outputs a control signal for turning off the light emitting diodes 32 and 72 from the constant current circuits 31 and 71 by the microcomputer 11. If the time of the imprinting time has not ended, the process proceeds to step S91.

Next, in step S91, it is determined whether or not the processing of steps S87 to S90 is to be repeated. Here, the process proceeds to the subsequent step S92 only when the measurement of the shutter time has been completed and the measurement of the printing time has been completed. However, if one of the two types of time measurement is not completed, the process proceeds to step S87 and the process is repeated.

In step S92, step S88 is performed.
Since the shutter closing operation has been started, the shutter closing completion is detected. If the closing of the shutter is completed, the process proceeds to step S93, and the shutter motor (not shown) is stopped. Thereafter, in step S94, the timer for measuring the printing time and the shutter time is stopped, and this subroutine ends.

In the above-described example, the LEDs 32 and 72 are arranged below the opening 65.
5 may be arranged above. 16 and 17
Shows a first modification of the second embodiment of the present invention.

FIGS. 16 and 17 show, in FIG. 13 and FIG. 14, respectively, those which are horizontally projected outside the screen frame of the film 28 and vertically projected outside the screen frame of the film 28. This is shown in FIG.

That is, the light emitting diodes 76 and 77 composed of light emitting elements capable of projecting three kinds of LED light of red, green and blue are located near the opening 65 and between the opening 65 and the film cartridge 26. It is arranged vertically in between. The order of arrangement of the colors of the LEDs 76 and 77 is not specified, but the LEDs 76 and 77 are arranged such that LEDs of the same color are arranged at corresponding positions.

With such a configuration, as shown in FIG.
Patterns 79 and 80 imprinted by the LEDs 76 and 77 are formed as shown in FIG. In this case, it is assumed that the imprinted patterns 79 and 80 represent a thin portion and a dark portion depending on the sparse and dense state of the hatched portion.

Of course, if the layout of the components inside the camera is permitted, the layout may be laid out in the vertical direction outside the screen. Next, a second modification of the second embodiment of the present invention will be described with reference to FIGS.

In the modified examples shown in FIGS. 16 and 17 described above, six LED lights are projected in the vertical direction outside the screen frame of the film. However, the second embodiment shown in FIGS. In the modified example, only three LEDs are used, and shades are alternately printed on a frame-by-frame basis outside each screen frame.

That is, the light emitting diodes 76 as light emitters are arranged in the vertical direction near the opening 65 and between the opening 65 and the take-up spool 27. In other words, the light emitting diode is located at a position where the color correction information can be imprinted in the vicinity of the photographing frame between the film winding chamber (spool chamber) provided with the winding spool 27 and the opening 65 serving as the exposure window. 76 is arranged.

Since the film winding chamber can be made smaller than the cartridge storage chamber for storing the film cartridge 26, it is easier to secure a space than the cartridge side of the opening 65. Therefore, the camera body can be made compact.

By arranging the light emitting diodes 76 in this way, for example, as shown in FIG. 19, a pattern 81 by imprinting lightly on the left side of an odd-numbered frame becomes
A pattern 8 is formed on the right side by a deep imprint. Conversely, a dark imprint pattern is formed on the left side and a light imprint pattern is formed on the right side for even frames.

The other system can be realized with the same configuration as that of the first embodiment shown in FIG. Next, FIG.
An exposure sequence for realizing the above-described imprinting will be described with reference to the flowchart of FIG. Basically, it is the same as the flowchart of FIG.

First, steps S101 to S103 are the same as steps S81 to S83 in the flowchart of FIG. Next, in step S104, it is necessary to change the density of the LED light projected on the odd-numbered frame and the even-numbered frame, so that the LED current set in the constant current circuit 31 is determined by the number of frames. Branched. That is, if the number is an odd frame, the process proceeds to step S106, and if the number is an even frame, the process proceeds to step S105.

In step S105, if the number of frames is even, the microcomputer 11 controls the constant current circuit 31
Is set to the transfer current I _H. Step S1
At 06, in the case of an odd number of frames th current I _L is set imprint by the microcomputer 11 to the constant current circuit 31. The imprint current has a value as shown in Table 2 above.

Thereafter, the flow shifts to step S107, where the microcomputer 11 outputs a control signal to the constant current circuit 31 to turn on the light emitting diode 76.
Subsequent steps S108 to S115 are the same as steps S87 to S94 in the flowchart of FIG.

Thus, the subroutine ends, and the process returns to the main routine. In the embodiment described above, red,
Although the light emitting diodes composed of three colors of green and blue (RGB) are driven by one constant current circuit, LEDs of different colors may be driven by the respective constant current circuits. As described above, by providing the constant current circuit and the LED in parallel, the current value can be adjusted for each of the three LEDs, so that the emission luminance can be easily made uniform.

Further, the luminous body of the above-described embodiment has three colors of red, green and blue, but it may be two or one of these colors, and of course, may be a color other than red, green and blue. It is. Further, in addition to the above-described embodiment, it is conceivable to output an imprint prohibition signal at the time of the second or subsequent multiple exposure.

According to the above embodiment of the present invention, the following configuration can be obtained. (1) In order to record color correction information for a film scanner, red, red,
A luminous body that captures at least one color of green or blue, a driving means for switching the luminance of the luminous body, and a light emission stop degree and a light emission on / off signal of the luminous body, A cartridge information detecting means for detecting the loaded cartridge information; and, if the loaded cartridge is a partially exposed cartridge, the unwinding frame by the winding means. A camera which outputs an imprint prohibition signal to the winding means when the film is wound up, and does not output the imprint prohibition signal during normal photographing.

(2) A luminous element for recording at least one of red, green and blue from the emulsion side of the film to the outside of the photographic frame in order to record color correction information for the film scanner, and this luminous element Drive means for switching the brightness of the film, winding means for outputting a light emission luminance of the illuminant and an on / off signal of light emission to the drive means in association with winding of the film, and winding the film after rewinding the film after photographing. Rewriting means for instructing a rewriting operation to be raised, rewinding means for rewinding the film by one frame, and receiving a signal from the rewriting means, rewinding the film by one frame by the rewinding means; Control means for outputting an imprint prohibition signal to the above-mentioned winding means when the film is wound up, and not outputting the imprint prohibition signal when winding the film after normal shooting. And a camera.

(3) In the camera described in (1) or (2) above, the winding means follows the movement of the film so that the images of the illuminant do not overlap.
A camera characterized in that it is turned on and off at least twice, and the turning on and off is performed by changing the luminance of the luminous body.

(4) In the camera described in (1), (2) or (3), the winding means is
A camera characterized in that the output luminance is changed according to the sensitivity of the film.

(5) In order to record color correction information for a film scanner, at least one of red, green and blue is projected from the emulsion side of the film to the outside of the photographing frame, and the first and second light emission. A body, a first driving unit for controlling the luminance of the first illuminant, a second driving unit for controlling the luminance of the second luminous body, and 2. A camera, characterized in that the driving means further comprises: exposure control means for outputting the light emission luminance of the first and second light emitters, outputting light emission on, and outputting light off after a predetermined light emission time. .

(6) The camera according to (5), wherein the exposure control means changes the light emission time from on to off in accordance with the sensitivity of the film.

(7) A luminous element for recording at least one of red, green and blue from the emulsion side of the film to the outside of the photographic frame in order to record color correction information for the film scanner, and this luminous element Driving means for switching the luminance of the light-emitting element, and exposure control means for outputting the light emission luminance of the light emitter to the driving means in response to the exposure operation, outputting light emission on for a predetermined time, and then outputting light emission off. A camera characterized in that:

(8) The camera according to (7), wherein the exposure control means changes the light emission time from on to off according to the sensitivity of the film.

(9) The camera according to (7), wherein the exposure control means changes the light emission luminance according to whether the number of frames of the film is odd or even.

(10) The camera according to (9), wherein the exposure control means changes the light emission time from on to off in accordance with the sensitivity of the film.

(11) In the camera described in any one of (1) to (10) above, the driving means controls the luminance of the luminous body by controlling the current flowing through the luminous body. camera.

(12) The camera according to any one of (1) to (10), wherein the illuminant is an LED. (13) The camera according to any one of (1) to (4), wherein the hoisting unit has luminance information of the illuminant recorded and stored in a nonvolatile memory.

(14) In the camera according to any one of (5) to (10), the exposure control means has brightness information and emission time of the illuminant recorded and stored in a nonvolatile memory. Camera.

(15) The camera according to any one of (1) to (10), wherein the luminous body is disposed between the exposure window and the spool chamber.

(16) Film feeding means for winding and rewinding a film, means for generating color correction information to be a reference at the time of electronic imaging processing by a film scanner, and the color correction information generated by the generating means A luminous body that projects near the shooting frame of the film; a luminance adjustment unit that adjusts the luminance of the luminous body; and a light emission control unit that causes the luminous body to emit light at a plurality of luminances adjusted by the luminance adjustment unit. A camera characterized in that:

[0128]

As described above, according to the present invention, when reading the image information of a film using an optical reading device such as a film scanner, the film is wound up at the time of photographing to prevent color misregistration, or is exposed at the time of exposure. A type of color correction information is printed, but if a system such as a film cartridge with a magnetic recording unit detects that the cartridge is a partially exposed cartridge, it can be wound up to an unexposed frame, or the magnetic record recorded after shooting can be rewritten. With the rewrite function, it is possible to prevent color correction information from being imprinted during winding and recording incorrect color correction information due to double exposure.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration for describing a camera according to a first embodiment of the present invention.

FIG. 2 is a perspective view of the film feeding mechanism 38 seen through from behind the camera.

FIG. 3 is a diagram showing a configuration of a film cartridge and a film.

FIG. 4 is a flowchart illustrating a main routine of the operation of the camera.

FIG. 5 is a flowchart showing a main routine of the operation of the camera.

FIG. 6 is a flowchart illustrating an operation of a subroutine “wind one frame”.

FIG. 7 is a timing chart illustrating an operation of a signal when one frame is wound.

FIG. 8 shows a light emitting diode 32 according to the first embodiment.
FIG. 4 is a diagram showing an example in which a pattern is formed by imprinting of a pattern.

FIG. 9 is a timing chart illustrating the operation of “winding up one frame” during rewriting.

FIG. 10 is a flowchart illustrating an operation of a subroutine “one frame rewind”.

FIG. 11 is a timing chart for explaining an operation of a subroutine “one frame rewind”.

FIG. 12 is a block diagram showing a configuration for explaining a second embodiment of the present invention.

FIG. 13 is a perspective view of the film feeding mechanism 38 according to the second embodiment as seen through from behind the camera.

FIG. 14 shows an LE imprinted according to the second embodiment.
FIG. 4 is a diagram illustrating a pattern of D light.

FIG. 15 is a flowchart illustrating an exposure sequence in a case where the timing of imprinting is performed at the time of exposure.

FIG. 16 is a perspective view showing a first modification of the second embodiment of the present invention, in which a film feeding mechanism 38 is seen through from behind a camera.

FIG. 17 shows a first modification of the second embodiment of the present invention, and is a diagram showing a pattern of imprinted LED light.

FIG. 18 is a perspective view showing a second modification of the second embodiment of the present invention, in which a film feeding mechanism 38 is seen through from behind a camera.

FIG. 19 shows a second modification of the second embodiment of the present invention, and is a view showing a pattern of imprinted LED light.

FIG. 20 is a flowchart illustrating an exposure sequence for implementing imprinting.

[Explanation of symbols]

Reference Signs List 11 microcomputer, 12 photometry circuit, 13 distance measurement circuit, 14 shutter control mechanism, 15 focus adjustment mechanism, 16 display circuit, 17 storage circuit, 18 release switch (RELSW), 19 rewind switch (REWSW), 20 power switch (PWSW) , 21 patrone detection switch (PTSW), 22 rewrite switch (REWRSW), 24 magnetic recording circuit, 25 magnetic head, 26 film cartridge, 27 take-up spool, 28 film, 28a exposure area, 28b perforation, 28c magnetic recording area, 29 Barcode, 30, 33 Photoreflector (PR), 31, 71 Constant current circuit, 32, 72, 76, 77 Light emitting diode (LED), 34 Disk with slit, 35 Photointerrupter (PI) 36 signal processing circuit, 37 drive circuit, 38 film feeding mechanism, 41 film winding / rewinding motor (M1), 58 film feeding motor (M2), 65 opening, 70a, 70b, 74, 75, 79, 80 , 81, 82
pattern.

Claims (3)

[Claims] 1. A film feeding means for winding and rewinding a film, a luminous body for projecting color correction information, which is a reference at the time of electronic imaging processing by a film scanner, in the vicinity of a photographic frame of the film; A camera comprising: a brightness adjusting unit that adjusts brightness; and a light emission control unit that causes the luminous body to emit light at a plurality of brightness levels adjusted by the brightness adjusting unit. 2. A cartridge information detecting means for detecting and outputting information attached to a film cartridge loaded in a camera, and the output of the cartridge information detecting means, when the loaded cartridge is a partial exposure cartridge, 2. The camera according to claim 1, further comprising control means for prohibiting imprinting of the color correction information when the film is wound up to an unexposed frame by a film feeding means. 3. Rewinding means for instructing a rewrite operation for winding up after rewinding the film after photographing, and receiving a signal from the rewrite means, rewinding the film by one frame, and rewinding the film. 2. The camera according to claim 1, further comprising control means for prohibiting imprinting of the color correction information.