WO1982003130A1

WO1982003130A1 - Camera with data copying unit

Info

Publication number: WO1982003130A1
Application number: PCT/JP1982/000058
Authority: WO
Inventors: Camera Kk Minolta
Original assignee: Taniguchi Nobuyuki; Hoda Takeo; Seigenji Kiyoshi
Priority date: 1981-03-10
Filing date: 1982-03-05
Publication date: 1982-09-16
Also published as: JPS57148734A

Abstract

Desired data is copied onto the emulsion surface side of the frame of a film (F) already exposed to the light from an object by operating a data copying unit (100) provided confronting the emulsion surface of the film (F) at a position removed in the film winding direction from the photographing screen frame (A) of a camera after one frame of the film (F) has been wound.

Description

Specification

Title of invention-Camera with data imprinting device

Technical field

The present invention relates to a camera having a data imprinting device for operating data imprinting means with a signal from a data imprinting drive circuit and imprinting desired data on a film.

Ϊ¾ surgery

Conventionally, it has been proposed that a data imprinting device of a camera triggers the imprinting of data at various operation timings ο—On the other hand, these data imprinting devices include a film. Nobe

-Some of the images are printed from the surface of the film, while others are printed from the emulsion side of the film.However, those that are printed from the base surface have the disadvantage that the time control of the printing is difficult. In the case of printing from the emulsion surface, the time control of the printing may be controlled according to the film sensitivity, but in the conventional apparatus, the data to be printed is optically guided to the position of the shooting screen.) Because of the need to imprint on the film, the disadvantages of the imprint timing, especially if the camera is equipped with a camera shutter, are difficult.

-There is a printing device o Use the focal plane shutter and film space to copy the data to the film.

Is not possible in terms of space o Therefore, the traditional focal

O Cameras with shutters are designed to load data from the base of the film o

Disclosure of the invention

It is an object of the present invention to improve the above-mentioned drawbacks of the conventional apparatus.

(ΟΜΡΙ O to propose an inset

According to the present invention, data is imprinted not when the frame is in the shadow screen frame, but when the frame is wound up by one frame and moved to a position off the shooting screen frame. Yes-a data projection unit located on the film's emulsion surface at a position off the shooting screen frame based on the signal output upon completion of film winding. It is special to start the operation.

This invention reduces the time between shooting and data imprinting for 1S.

で The gap is practically visible, so that the film is automatically wound immediately after the shooting of the First Lieutenant. 適 Suitable for the camera to be used. O According to this method, the focal-brain shutter is Even with a camera that has it, it is possible to imprint the data from the emulsion side of the film, but it is easy to control the imprinting time and the data is imprinted on the back cover. It is necessary to set up a capital, so there is no need for a power camera ^) and]) etc. for the signal between the body and the back cover o

Brief description of drawings

FIG. 1 is an im schematic diagram of the camera to which this mash is applied, FIG. 2 is a circuit diagram showing a specific example of the release circuit (5) of FIG. 1, and FIG.

© The circuit diagram shows a specific example of the film winding stop signal output circuit (9). Figure 4 shows the clock circuit [11], the data imprint circuit [13] and A circuit diagram showing a specific circuit example of the data transfer time j ^ I timer [15], ^ 5 is a circuit diagram showing a modification of the circuit in FIG. 2, and FIG. 6 is a circuit diagram in FIG. Related to imprinting of data!

Sectional view showing a location, Figure 9 is.靳面. View along鐃of Ai～A ₄ of FIG. 8, a first 0 views, FIG. 11, Fig. 12, the 13-FIG and FIG. 14 Is a cross-sectional view showing various optical configurations for the D part of the perforation reading, FIG. 15 is a circuit diagram showing an example of a circuit for detecting the performance, and FIG. Figure 7 shows the waveforms at various parts of the circuit.

BEST MODE FOR CARRYING OUT THE INVENTION

In FIG. 1, which is an overall circuit diagram of a camera to which the present invention is applied, (E is a power supply battery for the control unit of the camera, and (Si) is a release button (not shown) of the camera). The switch which is closed in the first stage of pushing down,

CBT i) is a transistor for holding voltage, and (1) is a constant-power E source that operates when the switch (S closed or transistor. CBTi) conducts. O (Sa) is a relay. Α, which is the switch that is closed in the second stage of pushing down the button

© (3) is a well-known metering / calculation / display circuit] ?, outputs the exposure time signal from terminal (a) and the aperture value signal from (b) o These signals are known exposure control circuits (7) to perform exposure control based on these signals.o Circuit (3) outputs a film sensitivity signal from terminal (c), and this signal is Imprint time control circuit (15)

Sent to @.

(5) Les rie's circuit der] ?, specific circuit configuration of this are shows in箅2 FIG o (BTs) (BT ₇₎ is powered preparative La Njisu data, (Ss) is The switch is closed when the exposure is completed, and opened when the shutter charge is completed. [Mg J is a release magnet with a permanent magnet core.

© Yes. The magnet [ ₃ ] and the switch [S7] form a relay, and the magnet [] \ fe ₃ ) is excited when the magnet is excited and when it is not excited. - - a, scan I Tutsi (S ₇₎ ₀ CM is we leave for being connected to the terminal ① terminal ③ respectively) winding off I Lum and Shah ivy one charging motor primary, [D ₅₎ is mode one coater CM ) Is a diode for absorbing the back electromotive force and (BT n) is a transistor for stopping the motor CM) o

⑤ (9) is a winding stop signal output circuit. The specific circuit is shown in FIG. 3. o CMgs) is a magnet having a permanent magnet as a core. O Locking force in winding operation

Scan I Tutsi (S ₉₎ is to the terminal ⑤ when imprinting data, copy the data

© Switching switch connected to terminal ⑦ when printing, (11) Clock circuit for data printing, (13) Data printing circuit, CL5) Dea, these concrete circuit example is shown in FIG. 4 o, circuit [13), [15) switch's (although S ₉₎ are fed via ¾, the clock circuit (11] Is a separate power supply

Wa Nshi ® Tsu preparative circuits for outputting a pulse of ^¾ H IgH "also Te convex in D, (0S ₅₎ is that to output the pulse of H igk !! the falling of the input signal Wansho Tsu preparative circuit, ( DI ^) is a delay circuit o

Next, based on FIG. 1 and FIG.

© Explain the operation of the circuit.o When the switch CS J is closed, the constant-voltage E source starts operating, and the power to the photometry, calculation, display circuit (3) and the release circuit (5) is supplied. There ₀ can this to start, Pawa one on Li set times - circuit of FIG. 2 [P0 force compass needle set pulse is force. This reset pulse S passes through the circuit (OR ₃ ), and the flip-flop

Flip-up opening between FFs (even if FFs are set,

OMPI --

The output of the OR circuit (OR ₂ ) is; g *, and the output of the AND circuit (ANz) is output by an inverter (: IN ₆ ). Therefore, transistors CBT a) and (BT a) are likely to conduct.

Then Sui Tutsi [S ₃₎ when is closed the output Lee Nba Ichita (D ^ rises to H igka, Wa Nshi ® Tsu preparative circuit output terminal (e in COS) fixed time to w H i _g ₀ the pulses of the pulse of the k "is output, it is input to the delay circuit of FIG. 2 [DL _3), followed by full Li Tsu Bed & off via the Saia circuit (OR!) after a certain delay It is input to the set terminal of the log (FF ₃ ), and the flip-flop (J Ta) © is set at the falling edge of this signal. Transistor (ΒΤί)

And the power supply transistor (ΒΤ ₃ ) conducts. Ο The OR circuit (the output of the OR (also transmits to the transistor (BT's) and conducts the transistor [BT s] for a certain period of time.) O As a result, the charge of the capacitor (C i) is discharged via the magnet (Mg i), and the exposure control mechanism © (not shown) is released. pulse from the j) is to re-cell Tsu bet the full Clip-off Lock blanking via the delay circuit [DL),耠電preparative La Njisuta (BT ₇₎ a o to be inoperative, In the delay circuit CDL shown in FIG. 2, the switches [S i) and [S s) are closed almost at the same time, and the release is performed at ft where the operation of the photometry circuit (3) is stabilized. O provided to prevent

When the transistor (BT ₃ ) is turned on, the exposure control circuit (7) operates, and ^ and と based on the signals from the terminals (a) and (b) of the photometry, calculation, and display circuit (3). o to control the exposure time and exposure control *: the檨镎the work is completed and Tsubonechi [not shown), and sweep rate pitch [s ₅₎ is closed, © Lee N'no, '- data ciN force There \\ ^{^H;.} g ^h rising to "- is, word Nshi ® Tsu door circuit (os ₃₎ power et al. \孖* ', the pulse of ζ is output to this

S £ A

OMPI Then, the flip-flop (FFJ is set and the transistor CBT ₇ ) conducts. In addition, the output (1) of the one-shot operation COS ₃ ) is transmitted to the transistor CBT ₉ ) via the diode D. i) The transistor [BT ₉ ) is made conductive. When the BT ₉ ) conducts, the (D relay (, (S ₇ ) operates, the motor (M) starts operating, and the film winding and shutter, mirror, and aperture D The charging of the imaging system (hereinafter simply referred to as “shutter charging”) starts. O When the switch CS ₇ ) is read in to the terminal で, the transistor (BT ₉ ) has a diode. After the holding current flows through [D ^), the transistor [BT ₉ ] is maintained in a conductive state even after the terminal (1) is pulled to ".。, Diode [D i) , CD s is provided to reduce the effect between terminal (1) and the positive terminal of motor CM). When started, if卷上up stop signal output circuit (9) © powered by preparative La Njisuta [BT ₇₎ is but o be described later not a bets in this operation the horn 3 FIG operating, that is mounted Fi Rumuka The stop signal is output from terminal Ch) when the performance reading unit counts eight pieces of the moving profile, and the start signal is output from 51 children (U). Yes ο — If the film is attached, the shutter charge is complete

© In ο only stop signal by a signal from Yasuko sweep rate pitch which is opened [s ₅₎ is output in this case, from the terminal (11) has are output is imprinted ^ start signal. ,簏子(q) DOO La Njisuta [BT ₇₎ output a full re-Tsubu and non-Lock 'signal to re-set the flop of耠電the timer first circuit [15) to come and has started by When the terminal a is from o Yasuko w H ig physicians' © pulses are output, and conducts preparative La Njisuta [ΒΤ _13), via the magnet you want to the permanent magnet ¾ core [M & 5) Conden Is discharged, and the magnet CJVfes) is excited. [9] This causes a known locking mechanism (not shown) to operate to lock the winding contact and to perform the winding operation. Stop. Further, preparative La Njisu data (BT ₉₎ and a non-conductive by preparative La Njisuta (BT u) is conductive, Ma. Gune

(D Tsu Doo (Mg non-excited ¾] 3, sweep rate pitch (S ₇₎ is connected to the terminal ③, the motor (M) o The time mode for stopping the rotation is shorted - data i ( M) is rotated to some extent by the inertial force, but if this rotation is transmitted to the hoisting mechanism by a known slip mechanism (not shown), the film piece position can be accurately determined. Can be regulated

O The charging of the above-mentioned locking mechanism may be performed at the same time as the charging of the photographing mechanism such as a shutter or at the end of the operation of the photographing mechanism.

When the switch CS ₉ ) is connected to the terminal 端子 and the imprint start signal is output from the terminal (u), the data imprint time control timer circuit ©) starts operation, the output is igk "of the terminal ω, door La Njisuta [ΒΤ ₁₅ is o ο Ti-mer circuit [15 this circuit CL3 imprinting Yotsute data) to operate the data imprinting begins to conduct) the terminal (c ) The output of the terminal at the end of the time, which is inversely proportional to the film sensitivity signal from), is set to ALOW i ', and the transistor (Βτ ₁₅ ) is set to @inactive', and the data printing is stopped. The one-shot circuit cos ₅ ) outputs a pulse of ox "based on the fall of the output of this terminal] ?, and this signal is sent to the Liz circuit (5) via Yasuko (ί). .

Data imprinting was performed and a pulse was input from the child (ί).

Output (d) is wai _g k ", and the resistance U and

_ _

', J — — — —

The potential of the connection point fe) of [Hs) is w H i _g k ”, and as described later, the terminal of the circuit (9) (the potential of g is also i _g k o Therefore, the AND circuit [ ANj) is involved, and the pulse from the terminal tt) is input to the set terminal of the flip-flop (FFa) via the AND circuit (AN) and OR circuit (OR) As a result, the flip-flop [FF a) maintains the set state, and the transistors [BTi] and [BT 3) maintain the conductive state. Njisuta CBT s) is w H i _g k o due to this to conduct a pulse of ", the magnet door (M i) Les Li one's of by that shooting mechanism in a row ¾ cracks, exposure control operation again terminal U) O Also, the pulse of the terminal (;] ·) delayed by the delay circuit (DI) is sent to the flip-flop (FF), which resets it. Therefore, transistor CBT ₇ ) is not The same control operation as described above is performed on conduction afterwards.o

Terminal and Les rie's © scan I pitch at the time the pulse is output of w H i _g k IT from (ί) [Sa) is open the potential of the terminal (d) it to "

i ?, the potential of the terminal CgO is w Hi " ₀ ". Therefore, in FIG. 2, since the power of the inverter (INs) is High ff ff, the AND circuit (ANs) is open. Therefore, the pulse of W Higk "from the terminal (f) is input to the reset terminal of the FLIT® FLOB (FFa) via the AND circuit [ANs] and the OR circuit [0Ra]. The flip-flop [FFa) is reset. O This causes the transistors CBT) and CBs) to become non-conductive, and the power supply to the entire circuit is stopped. The operation stops.

The potential of terminal Cg is A when data is imprinted. Therefore, the switch [Sa] is closed and the terminal (d potential becomes w Higk " If, in are in Figure 2, the force H i _g k Lee Npada [IN _7), with f and follow o Anne de circuit CaNA) is opened, from the terminal (h) ^ Hi gh Since the pulse of it passes through the AND circuit (A ₃ ) or the OR circuit (OR!), it is released again, and the same control operation as described above is performed. If S a) is open, the outputs of the inverters (INs) and C IN ₇ ) are both / and ¾ in Fig. 2, so the AND circuit [AN ₇ ) is opened and the AND circuit is opened. (AN ₇ ), the W Hi gk "pulse from the terminal (h) through the OR circuit [0R _3] resets the flip-flop [FF, and consequently the control operation stops. ® In Fig. 3, which shows a specific example of the winding operation stop signal output circuit (9) in Fig. 1, a switch (Sn) is a switch for detecting the presence or absence of a film. Oh, for example, Zhou It is installed in the film insertion part of the film winding sub-bulb as shown in the figure, and is opened if the film (F) is mounted, and closed if it is not mounted. O First, the film (0P) is mounted. If the switch (Su) is released

E clarify.

When the door run-register CBT ₇₎ that by the耠電starts, resistance [R _7), ¾ to the potential of the connection point of CR ₉₎ is cow go-between, out of Lee Nba Ichita CINg) - mosquitoes in \\ Falling ₀ This means that the ϋ: road (NA,

The output terminal of the short circuit that has been set up outputs a pulse of ^ High, and the octal counter [C0i] is reset at the falling edge of this pulse] 5. This pulse from Yasuko is also sent to the timer circuit [15], and resets the S's Flib 'Flob CFF ₅ ).

OMPI Connected to the emitter of a Darling-coupled transistor (BT ₁₇ ), the output of the resistor Ols) remains constant when perforation (PH) is detected. When the output of the point of contact between the current source (CI i) and the resistor (Re) exceeds the output, and when the perforation CPH is detected, the output decreases.

⑤ Go around. Therefore, from the comparator (AC, a pulse train corresponding to the perfor- mance level [PH] is output as the film ® moves. O This pulse train is output by the counter (CO. And the eighth pulse is output from one terminal of the counter of the counter CC0!). At this time, the switch (Su) is open.

Given Θ output bets connexion of Nodei lymph Ichita [IN _15), to the pulse-en de circuit from calibration rie terminal (Ang), word via the OR circuit CORS) Nshi ® Tsu preparative circuit COS ₇₎ o One shot circuit

COS?) Outputs a pulse for a certain period of time from the falling edge of this input pulse from terminal Ch), and the winding operation is performed as described above.

Further, when the full I Lum CF) is sweep rate pitch going mounted [S _U) is closed, the Lee Nba output of Ichita [IN ₁₃₎ is ox: '* CINis) output of w The open circuit (A u) is open at o and

© When the shutter charge is completed, the switch (S s) shown in Fig. 1 is opened and the output of the terminal (the output is CI w) is A ig A, Then, when the output of the AND circuit [ANu] is', a pulse of w H i _g h is output from the short circuit COS ₉ ) The pulse is an OR circuit (ORs) One shot times via

Is output, and this is the winding stop signal: ί: る o one

As described above, the circuit shown in Fig. 3 allows the film winding to be stopped accurately based on the signal from the per- formance when the film is installed. If the film is not mounted, the film winding is stopped based on the shutter charge completion signal.o

Then, o scan I pitch (S ₁₃₎ described Te start signal Nitsu data imprinting from the terminal (U) is closed at the opening of the back cover, in the scan I pitch to open at K formed of the back cover Oh, and therefore, it is an inverter

The output of (ΙΝ ₁₇ ) is ox, and when closed, it becomes "o

Conditions of Remind as in Table [) (: off A down-de-circuit (AN ₁₃ is when I Lum is ¾ rather than the back cover is close)) is closed, the imprinting start signal output No extra ¾ Prevent power consumption. When the condition () is satisfied (film CF) is open and the back cover is open), the AND circuit

[AN ₁₃ ) is opened and the start signal is output to terminal ω. In this way, the camera user can confirm that the data imprinting circuit is operating. Ο [7 ") is the normal data imprinting condition, and the terminal (u) The start signal is output to the terminal.The condition of T) indicates that the film is completely exposed, and at this time, the start signal is output to the terminal. The conditions are usually the same as above except when the film is attached and the air transport i3 is performed. is there.

As described above, the circuit shown in FIG. 3 can be used even when the switch (S g) is connected to the terminal ⑤ and the data imprinting circuit is in a state in which the data imprinting operation can be performed. It is not useful to operate the

がある O with a function to prevent power consumption

In the circuit shown in Fig. 3, a transmitted light type power mirror is shown as the detection of perfor- mance, but this may be an optical type power mirror. Mechanically inspects the performance.

FIG. 4 shows a concrete example of the clock circuit [11], the data imprinting circuit (13), and the timer-[15] in FIG. 1, where [21] is a crystal oscillator, [23] is an oscillator, (25) is a frequency divider and (27) is a clock counter.o (29) is a display part of the imprint data provided outside the camera.

The input terminal (e) of the timer first circuit [15) signal corresponding to the Ape' hex value S between Fi Lum sensitivity is inputted, the constant current target [CI s) and the connection point of the resistors ® CR ₂ Outputs a signal corresponding to the constant value K. These two signals, S v and K, are input to a subtraction circuit composed of resistors CR ₁₃ X CR is), CR ₁₇ ), (R ₁₉ ) and an operational amplifier, and an operational amplifier [ΟΑ to Κ— The signal corresponding to S v is output. O Here, the resistance values of the resistors (R ₁₃ ), (R ₁₅ ), [R ₁₇ ], and [R ₁₉ ) are all equal. The signal of S v is given to the base of the transistor (BT ₁₇ ) and converted into a collector current corresponding to 2 ^£ / 2. O

Flip when the data imprint start signal is input from the terminal (U)

• off Lock Bed (FF ₅₎ is Do and bets transistor (BT ₁₉₎ is non-conducting are set, the integration of the collector current (D of capacitor [C ₇₎ force preparative La Njisuta (BT ₁₇₎ opens. o and conducts the preparative La Njisuta (BT ₁₅₎ simultaneously started, the lamp [LA) is have line current Nyo constant luminance onset light from the constant current source (CI 3), enclosed by a one-dot chain line in the al The static motion of the LCD operates and the imprint data is displayed and the imprint operation starts.o

The terminal corresponding to the segment that should be in a transparent state based on CBD) is set to ^ High ( ₀ (ΕΟι) (ΕΟη)). The output terminal is an exclusive OR circuit connected to each of the counter electrodes (Ti :) to [Tn].

© [Τθ) This is a common electrode connected to the frequency-divided output (P). O This circuit is well known. The selected counter electrode (segment) is in a transparent state and the other parts are in a transparent state. opaque state and Ruru ο Thus, the light from the lamp (LA through only a portion of a transmission state is reached the full I Lum, - exposing it, ₀ @ data the data is imprinted Lee Ma first circuit (15) co in capacitor (C ₇₎ integrated voltage resistance [O potential at the connection point of R ₂₃₎ and the constant current source [CI 7)]? even down when co damper regulator

The output of the CAC a is given to the full Clip-off Lock Breakfast [FFs) through o the w H i _g h "output is the OR circuit [0R ₅₎ to reverse to w ¹¹ i _g physicians', this the door La Njisuta [BT ₁₅ since it re-set) takes non-conducting] 3, © data imprinting is completed. Matafu Li Tsu blanking and non-Russia-up (by the re-set of the FF s)] 3 The transistor (BT ₁₉ ) conducts, and the capacitor

OMPI [Charges of C ₇₎ is discharged, the output of the comparator [AC ₃₎ again

^反転 Invert to L wir. Here, since the collector current of the transistor door [BT I?) Corresponds to 2 ^£ Z 2 ^{S v,} unfavorable Tsubu * off Lock Breakfast

(CFFs) is set in inverse proportion to the film speed.

(Corresponding to the interval between D o

The light source for imprinting may be a single light-emitting diode or a segment composed of multiple light-emitting diodes. A light-receiving element is provided on the base side of the room to measure the amount of transmitted light during shooting and

写 The printing time may be corrected accordingly, or if the switch (S g) is in the data printing mode connected to terminal ⑤, it will be in the printing light path. A light-shielding plate is inserted into the camera to expose the film area where the data is to be imprinted at the time of photographing: it may be too dark o Figs. 5 and 6 are explained in Figs. 1 to 4 Figure 1 to Figure 4 show examples of data o In data imprinting, the data imprinting complete signal is the release signal for the next shot. However, in FIGS. 5 and 6, even when data is imprinted, the winding completion signal (specifically, the winding stop signal ω in the above embodiment) is used as the release signal for the next photographing. ₀

The effect is that the shadow interval of the camera can be shortened because it is played! Also, since the imprinting operation starts at the time of release, there is no need to provide a delay time for data imprinting time compared to the conventional device. One bar is short

FIGS. 5 and 6 are part of FIG. 1 to perform the above-mentioned operations. O First, in FIG. 5 showing a modification of FIG. 2, as apparent from comparison with FIG. 2, the signals [g, (f) O When the winding stop signal (h) is input, the release switch (S s) is closed and the potential of the terminal (d) becomes \, If so, the flip-flop (FFa) remains set and a release is performed at the output of the power circuit (OR) ϋ)

When the potential of the terminal (d) is w "and the hoisting stop signal (h) is input, the flip-flop (FFa) © is reset by the output of the OR circuit (OR a). The power supply to the entire circuit is stopped, and the exposure control operation is stopped.

In FIG. 6 showing a modification of the data imprinting section in FIG. 1, the clock section (11) is directly supplied with power from the power supply battery [Ea] as in FIG. 1, and the data imprinting section C13) , timer first circuit (15) is switched scan © Lee pitch [o being powered via the S ₉₎ was provided a power cormorants this good separately, operation parallel imprinting exposure control operation and data This is to prevent the effect of fluctuations in the power supply E caused by the change. (PO a) is a power-on reset circuit], and when the switch (Sa) is connected to the terminal (5), the flip-flop (PT s ) To reset the signal (q) o Using the circuit configuration in Fig. 6, the resistors (R i), [R a) in Fig. 1 and the one-shot circuit COS s), Ann de circuit (AN ₁₅ of FIG. 3) requires ¾ Ru Ku.

FIG. 7 shows a cross section of the entire configuration of a camera to which the present invention is applied, wherein (101) is a camera body, (102) is a back cover, (103) is a film plate, and C104) is a film. Subtract the OR from Film Patrone (107) and send it to the film winding sub-bulb αο6). [105] is the film (F) force from the block [104]; the roller is the one that holds down so that it does not escape o (108) is the block (104) and the subroutine (106) C112) drives the mirror, (109) drives the mirror box, and (111) drives the shutter (110).

(The lou and loo, which are D-shuttering parts, are the means for imprinting data, and have come off the shooting screen (Α) in the direction of film winding in the winding direction of the film to the suburb [106].) Ο is positioned so as to face the emulsion side of the film.

Figures 8 and 9 are enlarged views of the data imprinting part.

O (101a) is the surface where the pressure plate [103] is in contact with the force-melter body by the leaf spring shown] .3, ClOlb) This D-face for the E-plate [103) is a surface with steps so low that the film (F) can run.

© The above-mentioned package with a statically driven liquid crystal display [33] for embedding] 3, [: LA) is a light Atsushi lamp that illuminates the package [129) o [121 ), [122] are apertures for converting the light emitted from the lamp OA) into parallel light beams, [123] is an optical path bending rod ₀ [124] is a means for reading the perforation (PH). The photoreflector is composed of] 3, (130 readings) 3 to increase the efficiency), (1253) The light emitted from the light-emitting side of the photoreflector is transferred to the light-receiving side. A member that is reflected by the lid (102) and absorbs so that it does not enter

Fig. 8 above shows a screen of one frame with a film () indicated by a broken line.

© Shows the point when (I) has been cast and film winding for one frame has been completed. Performance by the circuit described above ---One —., — At the time of removal, a hoisting stop signal is issued and the locking mechanism linked to the electromagnet OVIg s], and the film is completely Stop. Also by the reading signal Pafore over sheet Yo emissions of FIG. 3 [PH _2)]? Via the follower Nsho Tsu preparative circuit [0S _7), data ⑤ data imprinting signal is emitted first eight diagram window (I ), The data is imprinted for the time corresponding to the film sensitivity.o At the same time, the screen of the other frame (the ID may be exposed. In the case of the system described in FIG. 6, which is a modification example ₀ , winding up!) Since the time until the next winding up can be assigned to the data imprinting time, the flash light is emitted. Motor drive compared to a conventional system that used a data imprinting signal to close the sink mouth contact to trigger the device.] 3 frames required for continuous shooting ¾The advantage is that the time is reduced and the number of frames that can be taken within a certain time is increased.

Fig. 10 and Fig. 11 show optics that give a high output when film 0 is present, and a low output pulse signal when the film reaches the perforation (PS). In the system, it is possible to detect the presence or absence of @perforation (PH) by the difference in the output. O In this configuration, the high output side is almost determined by the reflectance of the film. In order to increase the signal-to-noise ratio, it is essential to keep the low output side as low as possible. O In Fig. 10, the aperture I 130) is where the light emitted from the light-emitting element (LE) hits the film CF. In this case, of the light emitted from the light emitting element CLE), the film CF) is used.)) Specular surface All the reflected parts are incident on the light receiving element (PT).

OMPI \ -The size is set so that the light diffusely reflected from other areas of the film is prevented from entering the light-receiving element (ΡΤ) .o The light emitted from the light-emitting element (LE) is When it passes through the film (CB ¹ ), the light emitting element (LE)

The rays coming out of ⑤ are IT-restricted by the diaphragm (130) and the platen

Diffusely reflected at the screw hole (103a) of (103) and partly diffused or absorbed by the diffusion absorbing member (125) affixed to the back cover.o Also, restricted by the diaphragm D (130) Light that directly reaches the diffusion-absorbing member (125) is also diffused or absorbed.

The emitted light is a light that has been diffusely reflected at least once, and the electrical output of the photodetector (PT) is considered to be extremely low.

The difference between the optical system in FIG. 11 and the optical system in FIG. 1'0 is that a straight hole (103b) and a screen (126) are used instead of the screw hole (103a) and the diffusion absorbing member (125). In the same way, we are trying to produce an effect.

© When the screen [126] is absent, the emitted light is restricted by the aperture j9 Cl30) after exiting the light emitting element (LE), is further reflected by the back stand [102], and is received by the light receiving element CFT. O) In contrast to this, the light is actually a ray that actually arrives, and the damage is the light that is blocked by the partition C126). By Sanan (102)

The rays reflected specularly are completely blocked by the partition (126), and the rays entering the light receiving element (PT) due to diffuse reflection are extremely small, so depending on the presence or absence of the film. The difference in the amount of light received by the light-receiving element CPT) is large と 3], and the signal processing is ensured.

© The optical system shown in Fig. 12, Fig. 13 and Fig. 14 has low output when the light from the emitting element hits the film, or OhiPI when the light hits the film. When the perforation (PH) reaches the detection position, the output becomes high. The difference in the output is used to detect the presence or absence of the perforation. O Fig. 12 shows the principle. This is the layout of the optical system. O The area between the performances of the film is

(If the detector is at the D detection position, the light emitted from the light emitting element (LE) is reflected by the film surface through the aperture [130].] 9 The light is reflected by the film surface and enters the light receiving element (PT). Also, when the performance (PH) comes to the detection position, the light emitted from the light emitting element (LE) is restricted by the aperture [130] 5] and embedded in the pressure plate (130). Reflector

@ Reflected by the surface (27) Q27a) and incident on the light-receiving element (FT). In this case, the difference between the high output and the low output is the reflectivity of the film (F) and the reflectivity of the reflector (127) If the S / N ratio is not sufficient because of the difference in reflectivity (ie D, the reflectivity of the reflector [127] is up to 100 °)

However, when the reflectance of the film CF) is relatively high), it is considered that the detection of the performance cannot be made reliable. Therefore, in the optical system of Fig. 13, the reflecting mirror (128) is an elliptical mirror, and the output of the light receiving element (PT) when there is a film at the detection position is determined. What is going to be a high level

©. The characteristic of an elliptical mirror is that it has two focal points, and light rays emitted from one focal point are reflected at all points on the elliptical mirror surface and reach the other focal point, so that a light emitting element (LE) is placed at one focal point. A light receiving element (PT) may be placed at the other focal position.

With this device, the perforation (PH) comes to the detection position.

In this case, the light emitted from the light-emitting element (LE) follows the light path shown in the figure, and enters the light-receiving element (PT). --The area between the perforations of the film CF) is extremely large compared to the luminous flux when it reaches the detection position.1) The amount of light received by the light receiving element CPT) is extremely large, and the light receiving element The signal-to-noise ratio for judging the presence or absence of film CR is large in order to raise the output of (PT) to a higher level.

⑤ Easy to signal perforation detection o

Next, the optical system shown in Fig. 14 is designed to avoid the specular reflection of the film CF5 on the low output side of the high and low outputs of the light receiving element. ) Attempting to lower the level o Fig. 14 shows the reading! ) The optical system is viewed from below the paper surface in Fig. 12.)

CL3Ib) is a surface that receives the light that is emitted from the light emitting element (1) and is specularly reflected by the film CF), and (128) is the light that exits the light emitting element CLE) and passes through the perforation. A reflecting mirror that is provided almost perpendicular to the optical path axis of the light-flux regulating hole to reflect light toward the light-receiving element (PT).

©. When the area between the perforations of the film © is at the detection position, the light emitted from the light-emitting element passes along the light flux regulating hole (131a) (the film corresponds to F5). The light reflected by the film (CF) hits the (131b) plane within the range of the broken line, and does not reach the light receiving element (P) .o When the perforation (PH) comes, the light is emitted.

@ The light beam emitted from the element (LE) passes through the light flux regulating hole [131a] and is reflected by the reflecting mirror (128). J9, and the light beam reflected by the reflecting mirror (128) is reflected again by the light flux regulating hole [131]. Then, the light enters the light receiving element (FT). O With this device, if the perforation is at the detection position, the light emitted from the light emitting element (LE) is irregularly reflected by the film CF) Part

The signal-to-noise ratio (S / N) is large, which is extremely effective for signal conversion. O Fig. 15 shows an example of another circuit for detecting perforations.

Figure 16 shows the output waveform of each part of this circuit.o This circuit

'In the example, when the light receiving amount of the light receiving element (PD) is small,

とき When the amount of light emitted by (LD) is small and the amount of received light is large, increase the amount of light emitted.o Therefore, increase the difference between the absolute values of the signals according to the presence or absence of perforation at the detection position. Is possible, the signal processing is easy, and the light emission of the light emitting element (LD) is increased only when necessary, preventing wasteful power consumption by the light emitting element (LD). It has the effect of being able to do so.

The output of the comparator (AC s) is ©. When the performance starts entering or retreating from the detection position, the amount of light received by the photo detector (PD) gradually increases, and the operational amplifiers (OAs)

(CI n) and the resistor (R ₂₃ ) When the potential of the terminal まる is reached, the output of the comparator (AC ₅ ) becomes ^λ ,], 3, and the transistor CBT-35) conducts. In addition, the current of the light emitting diode (LD) is not limited by the resistance, and the light emitting amount of the light emitting diode (LD) increases rapidly.

Inverted output co damper regulator (AC s) within i _S kn, resistor (R _35), capacitor if Ru can certain time after preparative transistor, the [BT ₃₇₎ is resistance in conduction [R ₃₃₎ Means that current flows from both the constant current sources (CI u) and (CI ₁₃ ) and the potential at terminal 0 ^ is high.

©. When the perforation starts retreating or approaching from the detection position, the output of terminal ⑪ gradually decreases, Below the Le, comparator (AC output DOO transistor [BT ₃₅ to L.W) Yotsute o to which is non-conductive, the current flowing through the light emitting Daio over de (LD) by the resistor (R ₃₇₎ The light emission is limited and the amount of light is rapidly reduced. As a result, the output of the operational amplifier is also very small. In addition, the output of the comparator (ACs) ©

^ After reversing to Low η, the transistor (BT ₃₃ ),

(BT ₃₁ ) becomes non-conductive, only the current from the constant current source (ci _1L ) flows into the resistor, and the potential of the terminal Φ goes low o

Above mentioned, the optical system and circuit for detecting also ¾ I ₀ to say Rukoto the Ki de be used for detection of the signal hole provided in Betsunifu I Lum The Pas one Foresho Θ down

Οί.ίΡΙ

Claims

. · The scope of the claims .

1. A camera that has a data imprinting device that imprints the desired data on the film by operating the data imprinting means with a signal from the data imprinting drive circuit and winding one frame of the film丄 (Equipped with winding completion signal output means for outputting a signal in accordance with the completion of the winding, and the data imprinting drive circuit operates the data imprinting means based on the signal from the winding completion signal output means. And the data imprinting means is directed to the emulsion side of the film at a position off the shooting frame of the force camera.

2. Exposure control operation end signal output means for outputting 3 signals upon completion of camera exposure control operation, and film winding operation based on the signal from the exposure control operation end signal output means. And automatic winding means to charge the camera such as a shutter.

3. An electromagnetic release means for starting the camera operation of the camera based on the signal from the winding completion signal output means, wherein the camera has an electromagnetic release means. Camera described in section o

4. Along with the electromagnetic winding stop means, the winding completion signal output means detects a predetermined number of performances in the film and detects completion of film winding for one frame. It has a perforation detecting means, and when the perforation detecting means detects the completion of film winding for one frame, the electromagnetic winding stopping means is operated. 3. The camera according to claim 2, wherein the camera is configured as a winding stop signal output circuit that outputs a signal and a signal for operating the data imprinting drive circuit.

-5. The hoisting stop signal output circuit includes film detecting means for detecting whether or not the film is mounted on the camera, and charging completion for detecting charging completion of the photographing mechanism such as a shutter. I) When the film detection means detects that the film is not laid on the camera, the charging of the above-mentioned imaging mechanism such as a shutter is completed. 5. The force lens according to claim 4, wherein a signal for operating said electromagnetic winding stop means is output when detected by said charge completion detection means.

© 6. The hoisting stop signal output circuit further includes back cover open / close detection means for detecting the opening / closing of the back cover of the camera. When the film detection means detects that the D film is mounted on the film, and when the back cover open / close detection means detects Open

Is detected, and the film is mounted on the camera by the film detection means: ¾ Only when it is detected that the film is not detected, a signal for operating the data imprinting circuit is output. The camera according to claim 5, wherein the camera is formed as described above.

7. The above-mentioned perforation detecting means is a photo-brighter comprising a light-receiving element and a light-emitting element for projecting light toward a predetermined detection position where the perforation passes when winding up the film. The perforation is detected based on the output change of the light receiving element according to the amount of light incident on the light receiving element from the light emitting element. Claims S Clause 4 © Camera o

8. Film perforation 9. The camera according to claim 7, further comprising: a reflecting means for reflecting light emitted from the light emitting element and passing through the perforation toward the light receiving element.

9. The method according to claim 8, wherein the reflecting means is constituted by an elliptical mirror, and the light emitting element is arranged at one focal position of the elliptical mirror and the light receiving element is arranged at the other focal position. The camera described o

10. If there is an area between the two performances of the film at the predetermined detection position, a light-shielding wall is provided on which light from the light-emitting element that is specularly reflected in the area enters. To the light receiving element of the light

9. The camera according to claim 8, characterized in that the incident light is blocked by the light shielding wall.

11. When there is an area between the two performances of the film at the predetermined detection position, the light from the light emitting element reflected on the area is incident on the light receiving element. Arrangement of the above light receiving elements

© is determined and the light-emitting element that has passed through the performance is located at the position opposite to the light-receiving element and the light-emitting element with respect to the predetermined detection position and in front of the camera back cover. 9. The camera according to claim 7, further comprising a light diffusion absorbing member for diffusing and absorbing the light.

® 1 2. When there is an area between two film transformations' at the predetermined detection position, light from the light emitting element reflected on the area is incident on the light receiving element. The arrangement of the light-receiving element is determined as described above, and the parallax is located at a position opposite to the light-receiving element and the light-emitting element with respect to the predetermined detection position and in front of the camera back cover.

OMPI · Cameras ₀ ranging seventh claim of claim to that was example the Japanese

1 3. Includes a circuit that increases the emission intensity of the light emitting element when the output of the light receiving element is high, and decreases the emission intensity of the light emitting element when the output of the light receiving element is low. Special feature

A force camera according to claim 7.

1 4. The camera according to claim 1, wherein the data imprinting means is disposed at a position deviated from the photographing screen frame in the film winding direction.

OMPI