JP2000275727A - Camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize the focusing of a 1st photographing optical system in a state where a substrate is attached to the rear of an aperture surface by arranging the substrate of an imaging device so as to keep away from a range where the light for focusing of a 1st photographing optical system passes. SOLUTION: The focusing of an APS photographing lens executed after the assembly of a composite camera is performed by arranging a light source in front of the APS photographing lens and arranging a collimator on an opposite side to the light source by putting the APS photographing lens in between. A pressing plate 115 is attached to the specified position of an aperture 112, and a through-hole 115A is formed in a range where the light for focusing from the light source passes on the plate 115. The substrate 126 is attached to a position where it is kept away from the range where the light for focusing passes. Therefore, the focusing of the APS photographing lens is executed in a state where the substrate 126 is attached to the rear of the aperture 112, and the substrate 126 need not be detached in the case of readjustment.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention comprises a first photographing optical system for forming a subject image on a photographic film and a second photographing optical system for forming a subject image on a light receiving surface of an image sensor. About the camera.

[0002]

2. Description of the Related Art A first optical system for projecting a subject image onto a silver halide film via a photographing lens, and a subject image are captured using a solid-state image sensor such as a CCD, and the optical image is converted into electronic image data. A silver halide / electronic still photography camera (hereinafter, referred to as a “composite camera”) having a second optical system for capturing and capturing images has been proposed (JP-A-9-269545 and JP-A-9-31378). .

[0003] Since such a compound camera is constructed by combining the function as a silver halide camera and the function as an electronic still camera, it is desired to reduce its size. As means, a CCD mounting substrate is arranged behind the aperture surface of the silver halide film,
Some cameras have been downsized.

[0004]

However, in the conventional composite camera, since no consideration is given to the mounting position of the CCD mounting board, the focus adjustment using the light source and the collimator performed after the assembly of the composite camera is performed. The following problems occurred. That is, when the substrate is attached to the camera, it closes the aperture surface,
Prior to mounting the substrate, focus adjustment of the first optical system was performed first, and after mounting the substrate, focus adjustment of the second optical system was performed.

[0005] However, if the focus of the two optical systems is adjusted in such a procedure, the substrate must be removed from the camera when the focus of the first optical system is readjusted.
There was a disadvantage that it took time and effort. Also, when the substrate is re-attached, the focus of the second optical system may have moved, so that it was necessary to readjust in this case as well.

The present invention has been made in view of such circumstances, and provides a camera capable of performing a focus adjustment of a first photographing optical system in a state where a substrate of an image pickup device is mounted behind an aperture surface. The purpose is to do.

[0007]

In order to achieve the above object, the present invention provides a first method for forming an image of a subject on a photographic film.
A camera provided with a photographic optical system and a second photographic optical system for forming a subject image on a light receiving surface of the image sensor, a substrate of the image sensor behind a photographic film aperture formed in the camera. Is disposed, and the substrate is disposed so as to avoid a range through which the focus adjusting light of the first photographing optical system passes.

According to the present invention, the substrate of the image pickup device disposed behind the aperture is disposed so as to avoid the range through which the focus adjusting light of the first photographing optical system passes. The focus adjustment of the first photographing optical system can be performed in a state where the first photographing optical system is attached to the rear of the camera.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the camera according to the present invention will be described below in detail with reference to the accompanying drawings. FIG.
1 is a front view showing a compound camera 10 according to an embodiment of the camera according to the present invention. The composite camera 10 shown in FIG.
mm, a function as a so-called silver halide camera for recording an optical image using a silver halide film compatible with a new photographic system (hereinafter referred to as “APS”), and a CCD solid-state image pickup device (hereinafter “C”).
A digital still camera (hereinafter referred to as “DSC”) that converts an optical image into electronic image data using a “CD” and records it on a machine-readable recording medium is complexly combined. This is the camera configured.

A photographic lens (hereinafter referred to as an "APS photographic lens") 12 for forming an optical image on the surface of a silver halide photographic film is provided at the center of the front of the compound camera 10, and the APS is shown in FIG. On the upper right of the taking lens 12, DS
DS that forms the subject image on the light receiving surface of the CCD used in C
A C photographing lens 14 is provided. A finder window 16, an AF light receiving unit 17, and an AF light projecting unit 18 are arranged above the APS photographing lens 12. Reference numeral 22 denotes a flash window, reference numeral 23 denotes a flash light control sensor, and reference numeral 24 denotes a photometry window for measuring the luminance of the subject.

A release button 30 for starting opening and closing of a shutter at the time of photographing is provided on the upper surface of the composite camera 10. By half-pressing the release button 30, the brightness of the subject is measured through the photometric window 24, and infrared rays are projected from the AF light projecting section 18 and infrared rays reflected from the subject are received by the AF light receiving section 17. Then, the distance is measured, and the focusing is automatically performed based on the measured distance data.

As shown in FIG. 2, various modes and states of the APS camera section, a clock,
An APS display unit 32 for displaying information such as a remaining battery level and a memory usage state, an eyepiece unit 34 of an optical viewfinder, and a liquid crystal monitor 40 for displaying images and various information obtained by a DSC function are provided. Have been. The liquid crystal monitor 40 is rotatably attached to the camera body under appropriate friction via a hinge 42. By adjusting the direction of the display surface of the liquid crystal monitor 40, the liquid crystal monitor 40 The image displayed on the liquid crystal monitor 40 can be checked from both the front and the front. The liquid crystal monitor 40 displays an image equivalent to the subject image projected on the film and also displays an image equivalent to the finder image observed through the optical finder.

Various operation keys are arranged on the back of the composite camera 10. Specifically, the LCD monitor 4
LCD switch 44 for switching the display (mode) of 0, DA for setting the clock date change mode when changing data of the clock date function provided in the camera.
TE switch 46, LCD switch 44 and DAT
A SHIFT switch 48 for switching the function of the E switch 46, a cartridge opening / closing lever 50 for opening a lid (denoted by reference numeral 80 in FIG. 4) of a cartridge insertion portion of the APS film, a multifunction switch 52, and the like are provided. .

The multi-function switch 52 has four
Since each of the four switch members is formed of a translucent member while being composed of four independent switches that are divided, the lighting of the lamp, which is a light emitting member provided inside each switch, is performed. -Turn off lights can be checked from outside. An upper right lamp 64 is provided inside the upper right switch 54, a lower right lamp 66 is provided inside the lower right switch 56, and an upper left lamp 68 is provided inside the upper left switch 58.
However, a lower left lamp 70 is provided inside the lower left switch 60. This multi-function switch 52
Are assigned different functions in each use mode. Each lamp inside the multi-function switch 52 can create a lighting state, a lighting state, and a blinking state.

FIG. 3 is a top view of the composite camera 10. As shown in the figure, a mode switching dial 72 rotatably arranged on the outer periphery of the release button 30 on the upper surface of the composite camera 10, a CHP switch 74 for setting a print format for photographing on an APS film, and an AP
RW switch 7 for forcibly rewinding S film
6, a self / remote control mode switch 77, a photographing mode switch 78, and the like.

The mode switching dial 72 is an operation unit for switching between various modes of the camera. In the case of the compound camera 10 of the present embodiment, the mode is set to “OFF”, which is a mode in which photographing and display operations are not performed, and APS is set. This is a mode for setting “Shooting 1”, which is a mode for simultaneously performing both shooting with a film (hereinafter, referred to as “APS shooting”) and shooting with a DSC (hereinafter, referred to as “DSC shooting”), and a mode for only APS shooting. “PLA” which is a mode for setting “shooting 2” and displaying (playing back and editing) images obtained by DSC shooting
Y ”.

The CHP switch 74 is an operation member for switching a screen pattern in accordance with three types of print aspect ratios: convention (C), high-definition (H), and panorama (P). The CHP switch 74 is slidably provided on the upper surface of the composite camera 10, and includes the CHP switch 74.
Is selected and set at any one of the three stop positions corresponding to each print format.

The self / remote control mode switch 77
One shot of self-timer, two shots of self-timer, ...
A switch for switching between a remote control mode and a normal mode. The photographing mode switch 78 includes a DP mode (digital program mode) for automatically determining the amount of light emission of the strobe in accordance with the measured brightness and the distance to the subject, and a PRE mode (red eye reduction) for contracting the pupil in advance when the strobe light is emitted. Mode) and O for performing the forced flash firing
A switch for cyclically rotating an N mode, an OFF mode in which a strobe does not emit light, an INF mode (distant view mode) for taking a distant view, and an NV mode (night vision mode) for taking a night view. is there.

FIG. 4 is a bottom view of the composite camera 10. As shown in the figure, on the bottom of the composite camera 10, a cartridge lid 80 as a lid of the APS film cartridge chamber, a cartridge lid open / close detection switch 82 for detecting the open / closed state of the cartridge lid 80, and APS photographing Battery (hereinafter, referred to as “APS battery”) 84;
Battery for digital still camera shooting (hereinafter "DS
86), and each of the batteries 84,
And a battery cover 88 which is a cover of an installation space (storage room) 86.

The cartridge chamber is provided with a reading sensor (not shown) for optically reading a rotary bar code of a data disk provided in the APS film cartridge. Film information such as film type, total number of frames, ISO sensitivity, etc. is recorded on the data disc, and the information of the newly loaded film is automatically read by the reading sensor. It is notified to the built-in central processing unit on the APS side.

FIG. 5 is a right side view of the composite camera 10.
According to the figure, on the right side of the composite camera 10, an external power supply connection terminal (DC power connector) 90 for supplying power to the composite camera 10 in place of the APS battery 84 and the DSC battery 86, and image data of the DSC And a digital signal input / output unit 94 as an input / output port for outputting captured image data of a DSC as a digital signal. In addition, a card interface for inserting and removing a recording medium 96 such as a memory card for storing captured image data of the DSC is provided. The form of the recording medium is not particularly limited, and smart media, PC cards, flash memory cards,
Various forms such as an IC card, a magneto-optical disk, and a memory stick are possible, and the present invention is not limited to a detachable external recording medium but may be an internal memory built in the camera body.

FIG. 6 shows the camera body 10 of the compound camera 10.
FIG. 2 is a perspective view of the camera as viewed from the rear. The camera body 100 shown in FIG. 1 is provided with a lens barrel 102 in which the APS photographing lens 12 is disposed at the front center. This lens barrel 10
2, the APS film cartridge 10
Bulging part 10 in which a cartridge chamber in which the cartridge 4 is loaded is formed.
6 is formed, and on the left side of the lens barrel 102 in FIG.
A bulging portion 110 having a winding chamber provided with a film winding spool 108 is formed.

On the back surface of the camera body 100, a rectangular photographic film aperture 112 is formed. Guide ridges 114 and 116 are formed on the upper and lower portions of the aperture 112 along the upper edge and the lower edge of the aperture 112. The upper and lower edges of the photographic film 118 are pressed against the guide ridges 114 and 116 by a pressure plate 115 as shown in FIG.
In this state, the photo film 118 is fed from the APS film cartridge 104 to the take-up spool 108, or is fed in the opposite direction.

As shown in FIG. 6, a CCD unit 120 used in a DSC is attached to the camera body 100. The CCD unit 120 includes a lens barrel 122, a CCD fixing frame 124, and a CCD mounting substrate 1.
26. The lens barrel 122 has a DSC
A photographing lens 14 (see FIGS. 1 and 7) is arranged.
The inside of the CCD fixed frame 124 shown in FIG.
CD 128 is fixed. Therefore, the DSC subject image is captured by the DSC photographing lens 14 through the CCD 12.
An image is formed on the light receiving surface 8.

The CCD fixing frame 124 is fixed on an upper part of a rectangular CCD mounting board 126. The substrate 126 is provided with a plurality of circuit units necessary for driving and controlling the CCD 128, such as a drive circuit unit for driving the CCD 128 and a signal processing circuit unit for converting an electric signal output from the CCD 128 into a video signal. In addition, the microcomputer 130 that controls these circuit units
Is provided.

The CCD unit 12 constructed as described above
Numeral 0 denotes the substrate 1 of the composite camera 10 for miniaturization.
26 is attached behind the aperture 112 and parallel to the aperture surface formed by the aperture. Further, the substrate 126 is attached to a predetermined position behind the aperture 112 in order to easily adjust the focus of the APS photographing lens 12 and the DSC photographing lens 14 performed during the manufacturing process of the composite camera 10.

That is, for the focus adjustment of the APS photographing lens 12 performed after the assembly of the composite camera 10, a light source is disposed in front of the APS photographing lens 12, and a collimator is provided on the opposite side of the APS photographing lens 12 from the light source. Placed and done. The pressure plate 115 is attached to a predetermined position of the aperture 112. The pressure plate 115 has a through-hole 115A in a range where light for focus adjustment from a light source passes. Further, the substrate 126 is mounted at a position avoiding a range through which the focus adjusting light passes. For example, the minimum range necessary for focus adjustment is shown in FIG.
As shown in the figure, the area A has a radius 1 mm (φ2) from the optical center 13 of the APS photographing lens 12, and the substrate 126 is attached so as to avoid this area A.

Therefore, the compound camera 1 of the present embodiment
According to 0, since the substrate 126 is attached to the above-described position, the focus adjustment of the APS photographing lens 12 can be performed with the substrate 126 attached to the rear of the aperture 112. Accordingly, in the composite camera 10 of the present example, when the APS photographing lens 12 is readjusted, the substrate 126 does not need to be removed, and thus the APS photographing lens 1 to be implemented after the assembly of the composite camera 10 is performed.
2, and focus adjustment of the DSC photographing lens 14 is facilitated.

The substrate 132 shown in FIG. 8 is formed in a shape that avoids the range A through which the focus adjusting light passes. That is, in order to avoid the range A, the substrate 132 is formed with a concave cutout 134 on a side surface thereof for allowing focus adjustment light to pass therethrough. Comparing the substrate 132 of FIG. 8 with the substrate 126 of FIG.
Since the mounting is shifted from the range A, the size is reduced by the shifted range.
Since only the area A needs to be cut off, it can be made larger than the substrate 126. Thereby, the substrate 132
There is an advantage that more drive control circuits of the CCD 128 can be mounted than the substrate 126.

In the composite camera of this embodiment, A
Although a silver halide film compatible with PS is used, the invention is not limited to this, and silver halide films of other sizes, such as a 35 mm silver halide film, may be used.

[0031]

As described above, according to the camera of the present invention, the substrate of the image pickup device disposed behind the aperture is prevented from passing through the range through which the focus adjusting light of the first photographing optical system passes. With the arrangement, the focus adjustment of the first photographing optical system can be performed in a state where the substrate of the imaging element is attached behind the aperture. Thus, the present invention can easily adjust the focus of the first imaging optical system and the second imaging optical system during the camera manufacturing process.

[Brief description of the drawings]

FIG. 1 is a front view of a compound camera according to an embodiment.

FIG. 2 is a rear view of the composite camera shown in FIG. 1;

FIG. 3 is a top view of the compound camera shown in FIG. 1;

FIG. 4 is a bottom view of the composite camera shown in FIG. 1;

5 is a right side view of the composite camera shown in FIG.

FIG. 6 is a perspective view of the camera body of the compound camera shown in FIG. 1 as viewed from the rear.

FIG. 7 is a diagram showing the mounting position of the optical system and the board of the composite camera shown in FIG. 1;

FIG. 8 is an explanatory view showing another embodiment of the substrate.

[Explanation of symbols]

10: compound camera, 12: APS photographing lens, 14: D
SC photographing lens, 100: camera body, 112: aperture, 120: CCD unit, 126: substrate, 12
8 ... CCD

 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Yasuhiro Nishitani 3-11-46 Izumi, Asaka-shi, Saitama F-term in Fujisha Shin Film Co., Ltd. 2H054 AA01 AA06 BB07 5C022 AB12 AB44 AC51 AC69 AC78 AC80

Claims (1)

[Claims] 1. A camera comprising: a first photographing optical system for forming a subject image on a photographic film; and a second photographing optical system for forming a subject image on a light receiving surface of an image sensor. Behind the formed photographic film aperture, a substrate of the imaging device is arranged, and the substrate is arranged so as to avoid a range through which the focus adjusting light of the first photographing optical system passes. A camera characterized by the following.