CN1405617A

CN1405617A - Camera

Info

Publication number: CN1405617A
Application number: CN02140333A
Authority: CN
Inventors: 三上勇志
Original assignee: Fujifilm Corp
Current assignee: Fujifilm Corp
Priority date: 2001-08-02
Filing date: 2002-07-01
Publication date: 2003-03-26
Also published as: TW557405B; KR20030011513A; KR100496073B1; JP2003043636A

Abstract

The purpose of this invention is to let the assembly and disassembly of a camera easy, and the re-use and the recycle property are enhanced. In the lens unit 11, a diaphragm is switched by means of whether the arm 40b is actuated or not. In the strobe-unit 12, in addition to a synchro-switch 52 and a light-test switch 53, a diaphragm-switch-lever 56 etc. which actuates said arm 40b is also mounted. During assembly, each unit 11 to 13 is only mounted at a given position respectively, the synchro-switch 52 is positioned in the move-path of the press-section 71c of the shutter-piece 71, the light-test switch 53 is positioned in the move-path of a press-pin moved in response to the press operation of the shutter-button, and said diaphragm-switch-lever 56 is positioned in the same plain as the move-path of said arm 40b. Therefore, in taking a photograph, in response to the press operation of the shutter-button at first the diaphragm is switched, then the shutter is released and simultaneously the strobe emits light. During disassembly, only by means of detaching the engagement of the engaging-paw, each unit 11 to 13 can be detached each time.

Description

Camera

Technical field

The present invention relates to a kind of camera, relate to measure subject brightness in more detail, change aperture, discharge the camera of shutter then according to this subject brightness along with pressing shutter release button.

Background technology

On the low price simple type camera of the disposable camera that comprises loaded in advance during fabrication nonrecoverable version (with the back disposal type), be provided with the lens assembly that keeps phtographic lens and shutter device mechanical component, be provided with the flash lamp component of flasher etc., be divided into independently assembly with its function respectively, the decomposition after assembling during easy like this manufacturing the and the use.This camera requires to use the shutter of the so-called pressure release type that fixed focal length phtographic lens and single speed fix according to low-cost and simplified construction etc.But the photography environment of use is a very big brightness range outdoor when fine from the room lighting of low-light level to high brightness, so, in this gamut with suitable exposure photography, just need to regulate the AE mechanism (aperture governor motion) of exposure.Therefore, will study the AE mechanism how to constitute and be loaded in the camera, regulate exposure thereby switch aperture according to the brightness of subject by a light measuring circuit of mensuration subject brightness and switches light coil apparatus.

But, if in above-mentioned camera as the higher idiot camera of price, with the executive component of AE circuit board that constitutes light measuring circuit and switches light coil apparatus with the structure with soldering welding conducting such as lead and software circuit plate, complexity that then can be owing to making is high to be worsened productivity to produce the problem that cost rises.In addition, each assembly utilized when using with recycle again owing to decompose difficulty, so the low problem of usability is arranged again.

The present invention is in order to address the above problem, its purpose be to provide a kind of do not reduce the productivity when making and use after the utilization again and the recycle usability of each assembly, and possess the camera of the modular construction of the AE mechanism of containing easy assembling and decomposition.

Summary of the invention

In order to achieve the above object, camera of the present invention has:

Be included in the blade that is subjected to acting force of the spring on the off-position, with with the pressing operation interlock of shutter release button, move to the off-position and during this moves, make blade to evolution makes the shutter activation lever that blade opens and closes and pressing shutter release button to make the blade tripping to the shutter activation lever later on to tripping during, move to the mechanical component of the switch switching part of on position from open position from loading position; With

The flashlamp illuminating part is being housed, is being equipped with on the circuit board of the circuit component that constitutes flasher circuit simultaneously, be provided with the synchro switch of connecting corresponding to blade arrives the open site of regulation, with the photometry switch of connecting corresponding to the switch switching part moves on position, with the light measuring circuit of measuring subject brightness corresponding to the connection of this photometry switch, and according to the output of this light measuring circuit and the flash lamp component of the executive component that between two positions, moves; With

Be assembled with keep phtographic lens and be equipped with according to the displacement of executive component move, at the lens assembly of mobile aperture board between little aperture position and the large aperture position or between little aperture position and the retreating position.It is desirable to, mechanical component comprises that delay is moved by the pressing operation shutter release button, the shutter activation lever begins to move delay device constantly to the off-position, and the action by this delay device makes the switch switching part move to open position from closing the position.In addition, mechanical component is located at film receiving room and the integrally formed body base of spool receiving room that installs film and spool when making in advance.

Description of drawings

Fig. 1 is the stereoscopic figure that implements disposable camera of the present invention.

Fig. 2 is the exploded perspective view of disposable camera inner structure.

Fig. 3 be lens assembly, flash lamp component, mechanical component major part separate stereographic map.

Fig. 4 is provided in a side of the exploded perspective view of the tripper on the mechanical component.

Fig. 5 is the vertical view that shutter loads the tripper of done state.

Among the figure: 10-disposable camera, 11-lens assembly, 12-flash lamp component, 13-mechanical component, 14-body base, 37-movable aperture board, 40-aperture lever, 45-circuit board, 47-CdS, 52-synchro switch, 53-photometry switch, 55-solenoid, 56-aperture switches lever, 57-retainer, 70-camera bellows, 71-shutter lever, 82-trip lever, 84-loading lever, 95-switch gear.

Embodiment

Fig. 1 and Fig. 2 implement the outward appearance of disposable camera of the present invention and the generalized schematic of inner structure.Disposable camera 10 is made of the protecgulum 15 and the bonnet 16 of lens assembly 11, flash lamp component 12, mechanical component 13, the body base 14 that each assembly 11～13 is housed, above each assembly of covering.

At about central portion of body base 14, be provided with exposure frame 14a at a picture size exposure range of the front of film restriction.Along optical axis PL arrangement exposure frame 14a, mechanical component 13, lens assembly 11 are being set.Mechanical component 13 usefulness claw 14b are fixed on the body base 14, lens assembly 11 usefulness claw 13a are fixed on the mechanical component 13.In addition, on the next door of mechanical component 13 flash lamp component 12 is housed.Flash lamp component 12 usefulness claw 14c are contained on the body base 14.Forming among the spool receiving room 14d and film receiving room 14e that exposure frame 14a is held under the arm in the centre, the not shown photographic roll film that is web-like that pulls out from spool and from spool of packing into when making is being arranged.

On protecgulum 15, be formed with the photographic window 21 that exposes phtographic lens 20, to thing side viewfinder 22, flashlamp light-emission window 23, subject brightness photometry with light measuring window 24, opening 25, flashlamp light modulation with being subjected to optical window 26.In addition, on bonnet 16, be formed with bottom 16a, the 16b of the bottom opening that is used for shading covering spool receiving room 14d and film receiving room 14e.Bottom 16a can open when taking out the spool of the rolling film that photography finishes.Be formed with at protecgulum 15 and above the bonnet 16: expose opening 28, the film number window 29 of shutter release button 27, the charging end affirmation window 31 that optical conductor 30 is exposed.

Be provided with the film winder 34 of flexible rotation on the top of spool receiving room 14d, its part is outstanding from bonnet 16.Be formed with not shown tack-up spool below film winder 34, it cooperates with the short tube of spool.Rotate film winder 34 during each photography, can a picture of a picture of the film of having taken twist on the spool.

Lens assembly 11 is made of phtographic lens 20, lens mount 35, liner 36, movable aperture board 37, diaphragm 38, camera lens pressing plate 39 etc. as shown in Figure 3, and phtographic lens 20 is made of anter camera lens 20a and rear panel camera lens 20b.Each parts are inserted on the lens mount 35 also fixing with camera lens pressing plate 39 among the formed camera lens support base 35a according to the order of rear panel camera lens 20b, liner 36, movable aperture board 37, diaphragm 38, anter camera lens 20a.

Movable aperture board 37 slightly is the L font, is formed with small-bore little aperture openings 37a at its leading section.Movable aperture board 37 is fixed on the installation portion 40a of aperture lever 40, can be contained in rotationally flexibly on the bolster 35b of lens mount 35 with aperture lever 40.Movable aperture board 37 is by being contained in the elastic force of the spring 41 on the aperture lever 40, is maintained at little aperture openings 37a and is inserted on the insertion position on the optical axis PL.In addition, on lens mount 35, be formed with large aperture opening with bore bigger than the little aperture openings 37a of movable aperture board 37.

Constituting the aperture switching mechanism by large aperture opening of these movable aperture boards 37, aperture lever 40, lens mount 35 etc., can be inserted in the insertion position on the optical axis PL and keep out of the way between the retreating position at little aperture openings 37a from the little aperture openings 37a of optical axis PL, movable aperture board 37 is set selectively, can switches 2 grades of f-numbers of little aperture, large aperture with this.And also can on movable aperture board, form little aperture openings and large aperture opening, between little aperture openings being arranged on the little aperture position on the optical axis PL and the large aperture opening being arranged on large aperture position on the optical axis PL, movable aperture board is set selectively, in order to switch 2 grades of f-numbers of little aperture, large aperture.

Flash lamp component 12 is made of circuit board 45, main capacitor 46, CdS47, photo detector 48, flash light emission portion 49, power-supply battery 50,

various switch

51,52,53 etc.Be formed with well-known flasher circuit on the circuit board 45, measure subject brightness the mensuration circuit, accept the reflected light of flash light and when this light income reaches setting, stop the luminous light adjusting circuit of flashlamp, in addition, also be provided with the aperture board driving mechanism that constitutes by solenoid 55, aperture changer lever 56, retainer 57 etc. on it.

As shown in Figure 2, can be located at the front of circuit board 45 up and down flexibly slidably by receiving plate 58 functional units 59.Being formed with switch bar 59a and this switch bar on functional unit 59 exposes from the opening 25 of protecgulum 15.The cameraman is switched functional unit 59 by making this switch bar 59a slide mobile.Functional unit 59 can be aligned in " pass " (disconnection), " opening " (connection) of the mark 60 that shows on the protecgulum 15 and carry out 2 grades of switchings.

As switch bar 59a during in the off-position, flasher circuit is failure to actuate.As switch bar 59a during, will connect flashing switch 51 by the projection that is pressed on functional unit 59 backs, make flasher circuit action, the charging of carrying out main capacitor 46 and triggering capacitor in " opening " position.When main capacitor 46 once the charging level that reaches regulation, not shown neon tube (also can be light emitting diode) is just lighted.The neon tube issued light is emitted, is circulated a notice of the charging end to the cameraman from its front end by optical conductor 30.

Synchro switch 52 is in case connect the charge discharge of savings in triggering capacitor.Meanwhile, the electric charge of savings in main capacitor 46 is by the discharge of flashlamp discharge tube, and the light of flashlamp shines to subject.Light adjusting circuit is accepted the reflected light of flash light by facing the photo detector that is subjected to optical window 26 48 that is formed on the protecgulum 15, and it is luminous to stop flashlamp when this light income reaches setting.

Light measuring circuit is made of CdS47, switching transistor, photometry switch 53 etc.CdS47, such as everyone knows, be according to being subjected to luminance brightness to change the light conductiving element of its resistance value, it being configured in the front that is positioned in the face of the circuit board 45 on formed light measuring window 24 on the protecgulum 15.Switching transistor (not shown) is configured in from power-supply battery 50 and leads on the feed circuit of solenoid 55, according to the light value of subject brightness, switches on to coil 55b selectively.Photometry switch 53 is fixed on the circuit board 45 by support unit 61, and be located in be located at on the switch gear 95 of tripper 72 described later by pad 95d institute mobile route on.When photometry switch 53 once connecting the action of light measuring circuit then and to the brightness photometry of subject.

As shown in Figure 3, switch on the lever 56, be formed with the protuberance 56a that is abutted against mutually with the arm 40b of aperture lever 40 and will loading the protruding 56b that is blocked on the lever 84 in retaining described later at the aperture of aperture board driving mechanism.Aperture switching lever 56 is through the propeller boss 62a that is located on base component 62 back sides and goes up, also can rotate flexibly.Propeller boss 62a embeds in the inlaid hole 70a that is located on the camera bellows 70 that constitutes mechanical component 13 by torque spring 63 and carriage 64.With this, circuit board 45 is positioned on the assigned position with respect to mechanism assembly 13.

Aperture switches lever 56 and is imposed clockwise power by torque spring 63, makes protuberance 56a push down the arm 40b of aperture lever 40.Set torque spring 63, have the bigger power of spring 41 that the movable aperture board 37 of comparison applies torsion, movable aperture board 37 is imposed the power of rotating to retreating position direction (counter-clockwise direction) in order to the power of antagonistic spring 41.

Below aperture switches lever 56 leading sections, retainer 57 is housed.Retainer 57 is made of axial region 57a, protuberance 57b, fitting portion 57c, and can axial region 57a be that the center can be flexibly rotationally by projection (not shown) supporting that is located on the support unit 61.Fitting portion 57c is chimeric with the movable core 55a that is located at retainer 57 solenoid 55 behind.Retainer 57, be configured to rotate switching on the lever 56 same planes with aperture according to solenoidal on/off, within in a single day protuberance 57b enters the mobile route that aperture switches lever 56, be in when stopping that aperture switches the blocking position of lever 56, then keep out of the way outside the mobile route, make aperture switch lever 56 and between the non-blocking position that allows rotation, rotate.

Solenoid 55 is made of movable core 55a, coil 55b, retainer 55c, back-moving spring 55d.Retainer 55c is sealed with the sealed pawl (not shown) that is formed on the support unit 61.Movable core 55a can be contained in the coil 55b flexibly slidably, with back-moving spring 55b it is applied the power of stretching out to the below of coil 55b.Solenoid 55 is a kind of in the magnetic force type that produce to attract movable core 55a when coil 55b switches on, and to the energising of coil 55b, is undertaken by light measuring circuit according to the light value of the subject brightness that is recorded by CdS47.

In addition, the required standard of the subject brightness light value of solenoid 55 actions can suitably be selected according to f-number.In addition, also can be set in retreating position to movable aperture board 37 at ordinary times, when the light value of subject brightness is higher than required standard, move it the insertion position.

Mechanical component 13 is that the camera bellows 70 with forwards outstanding square tube shape is a pedestal, and (with reference to Fig. 2) such as blade 71, tripper 72, view finder 73, film tally 74, pressing plates 75 is housed in the above.In the front of camera bellows 70, be formed with fast door opening 70b, and blade 71 be housed in its place ahead.On blade 71, be formed with blade part 71a, the abutment 71b, the press section 71c that cover fast door opening 70b, and mounting hole 71d and bearing pin 70c are sealed and can be supported rotationally flexibly.Blade 71 is by means of the pulling force of back-moving spring 76, pull to the off-position that covers fast door opening 70b to blade part 71a usually.

Abutment 71b is configured in the mobile route of formed pressure arm 82a on the trip lever 82 at tripper 72 described later, when pressing shutter release button 27, is flicked to right-hand by pressure arm 82a.Like this, the spring force that blade 71 overcomes back-moving spring 76 rotates to clockwise direction, and the fast door opening 70b that is covered by blade part 71a is exposed at open position.Then, blade 71 rotates to counter clockwise direction by means of the pulling force of back-moving spring 76, and blade part 71b returns and is in the position that covers fast door opening.So, fast door opening 70b is opened and closed.

Simultaneously, the mobile road of press section 71c through in, dispose the synchro switch 52 of flash lamp component 12, when blade 71 is positioned at the open site, push synchro switch 52 and make its connection, with this, make flashlamp luminous with the switching interlock of blade 71.In addition, a pair of bearing pin 62b in the setting that erect the front of the base component 62 that keeps synchro switch 52, be fixed on the circuit board 45 by the support unit 61 usefulness screws 77 that are fixed on the circuit board 45, like this synchro switch 52 be positioned in the mobile road warp of press section 71c.

Tripper 72 as shown in Figure 4, is made up of roll film positioning lever 81, trip lever 82, delay lever 83, loading lever 84, cam 85, speed adjusting gear 86.

Cam 85 is made of axial region 85a, plectane 85b, fan-shaped the 1st cam 85c, the 2nd cam 85d, the 3rd cam 85e, is formed with breach 85f on plectane 85b.Cam 85, its axial region 85a are passed in the hole 70d that forms on the camera bellows 70.Axial region 85a bottom with the engaging hole 87a of sprocket wheel 87 engagement.The a plurality of teeth that form on the excircle of sprocket wheel 87 mesh with the formed sheet perforation that send on the film.Therefore, in case film is transferred, then sprocket wheel 87 just to counterclockwise rotating, cam 85 also and then rotates simultaneously.

Trip lever 82 can be contained on the axle 70e that is located on the camera bellows 70 flexibly rotationally, and with torque spring 88 it is imposed power counterclockwise.On trip lever 82, be formed with pressure arm 82a, hook 82b, protruding 82c.In case press shutter release button 27, pressure arm 82a just the abutment 71b of blade 71 to right-hand release, hook 82b and the 1st cam 85c are abutted against.The projection 82c when shutter is loaded and the end 83d of delay lever 83 be abutted against, block trip lever 82 to anticlockwise rotation.

Roll film positioning lever 81 can be contained on the axle 70f that is located on the camera bellows 70 flexibly rotationally, with torque spring 89 it is imposed clockwise direction power.On roll film positioning lever 81, be formed with catch pawl 81a, protruding 81b, the 81c of release portion, roll film catch pawl 81d.When loading to shutter, the breach 85f of catch pawl 81a and cam 85 meshes and pinning roll film positioning lever 81.At this moment, roll film positioning lever 81 rotates a little to clockwise direction, and roll film catch pawl 81d just stops its rotation with film winder 34 engagements.

In case press shutter release button 27, then at the one end at the formed compressing tablet 90c in the bottom of the shutter lever that slightly is the L font 90 that is provided with shutter release button 27 (with reference to Fig. 2), push the 81c of release portion, make roll film positioning lever 81 overcome the power of torque spring 89 to counterclockwise rotating.Like this, remove and the breach 85f of cam 85 and the engagement of film winder 34.

Delay lever 83 is installed on the axle 70g that forms on the camera bellows 70, and with torque spring 91 it is imposed power counterclockwise.On delay lever 83, be formed with gear 83a, catch 83b, inverted cam 83c.The protruding 81b of catch 83b and roll film positioning lever 81, inverted cam 83c and the 3rd cam 85e are abutted against respectively.In the rotation track of end 83d protruding 82c of embedding trip lever 82 after shutter loads, it is kept to stop trip lever 82 to rotation counterclockwise.

Speed adjusting gear 86 is made of switch gear 95 and armature 96.Switch gear 95 can be contained on the axle 70h that is formed on the camera bellows 70 flexibly rotationally.The 1st gear 95a, the 2nd gear 95b arranged on switch gear 95, push rib 95c, by pad 95d.The gear 83a engagement of the 1st gear 95a and delay lever 83, and when delay lever 83 rotates, make switch gear 95 along with carrying out driven rotation.On the 2nd gear 95b, meshing armature 96, in order to the velocity of rotation of by-pass cock gear 95.Press pad 95d at switch gear 95 when clockwise direction is rotated, push the photometry switch 53 that is positioned in its mobile route with its connection.

The loading lever 84 that slightly is the L font can be contained on the axle 70k that is formed on the camera bellows 70 flexibly rotationally, and with torque spring 92 it is imposed to anticlockwise power.On load lever 84, be formed with arm 84a and stop protruding 84b.Front end at arm 84a is formed with abutment surfaces 84c, is formed with the 84d of portion that is pressed in its lower end.Abutment surfaces 84c and the 2nd cam 85d are abutted against, and stop simultaneously after shutter loads, cam 85 rotates to clockwise direction.The rib 95c that pushes of 84d of portion and switch gear 95 of being pressed is abutted against.The protruding 56b that is blocked that stops protruding 84b and aperture switching lever 56 is abutted against.

The following describes the effect of said structure.Lens assembly 11, flash lamp component 12, mechanical component 13 are supplied in advance the assembling procedure of disposable camera 10 respectively after assembling procedure assembling separately.Lens assembly 11 is pack on the pedestal 35 in the mechanical mechanism assembling procedure photographic lens 20, liner 36, movable aperture board 37, diaphragm 38, camera lens pressing plate 39, aperture lever 40 etc.Equally, mechanical component 13 is also in the mechanical mechanism assembling procedure, be assembled in tripper 72, view finder 73, film tally 74, press box 75 etc. on the camera bellows 70.Flash lamp component 12 is in the electric parts assembling procedure, various electric elements such as main capacitor 46, CdS47, photo detector 48, various switch 51～53, solenoid 55 are contained in the assigned position on the circuit board 45 and weld with soldering, the mechanical mechanism of the aperture board driving mechanism of aperture lever 56, retainer 57 etc. is installed then, again.

In the assembling procedure of disposable camera 10, mechanical component 13 at first is installed on body base 14, then, lens assembly 11 is installed in its front.Then, bearing pin 62a is cooperated with the embedded hole 70a of camera bellows 70, flash lamp component 12 is installed in the side of mechanical component 13.Each assembly 11～13 is clamped with claw 13a, 14b, 14c respectively.With this, respectively synchro switch 52 is positioned to be positioned in the mobile route of press section 71c of blade 71, photometry switch 53 in the mobile route by pad 95d of switch gear 95, aperture is switched lever 56 is positioned on the same plane of arm 40b mobile route with aperture lever 40.

Load onto after the flash lamp component, refill power-supply battery 50, functional unit 59, be formed with the shutter lever 90 of shutter release button 27 etc., pack into simultaneously spool and film, with protecgulum 15 and bonnet 16 body base 14 is covered and just to have made disposable camera.

When photographing, at first rotate film winder.Turning handle film by this film winder 34 licks, and has also carried out the shutter loading simultaneously.Shutter loads the state finished, and as shown in Figure 5, roll film positioning lever 81 is entrenched in retaining pawl 81a among the breach 85f, the roll film locating detent is entrenched among the groove 34a of film winder 34 respectively, thereby stop the rotation of cam 85 and film winder 34.Make delay lever 83 remain on as shown in the figure position with locking plate 83b and protruding 81b sealed.Thereby the rib 95c that pushes of be pressed 84d of portion and switch gear 95 is abutted against prevention loading lever 84 to counterclockwise rotating.Sealed by protruding 82c and end 83d of trip lever 82, maintenance makes pressure arm 82a be in left position with the abutment 71b of blade 71.

When cameraman one pressed shutter release button 27, pressing tablet 90a made roll film positioning lever 81 to counterclockwise rotating just to the right-hand 81c of release portion that pushes.Because of this rotation, protruding 81b is left, so delay lever 83 is just to counterclockwise rotating from locking plate 83b.Along with the rotation of this delay lever 83, switch gear 95 rotates to clockwise direction, just pushes the photometry switch 53 that is positioned in its mobile route by pad 95d and makes its connection.So, the photometry of light measuring circuit action carrying out subject brightness.

Light measuring circuit reaches prescribed level when above at the light value when subject brightness, does not power to coil 55b.Therefore, retainer 57 remains untouched and is in stop position, inserts on the insertion position of optical axis PL so movable aperture board 37 remains on little aperture openings 37a.On the contrary, when light value is lower than prescribed level, just switch on to coil 55b.In case to coil 55b energising, then movable core 55a just is inhaled in the coil 55, retainer 57 is just to allowing the position to rotate.Aperture switches lever 56 just to the clockwise direction rotation, and with push the arm 40b that is configured in the aperture lever 40 on the same plane of protuberance 56a mobile route.Make aperture lever 40 to counterclockwise rotating because this is pushed, make little aperture openings 37a from optical axis PL keep out of the way retreating position, movable aperture board 37 moves, carry out aperture and switch.

Then, when delay lever 83 quantitatively rotated, its end 83d just left from protruding 82c, and trip lever 82 is just to counterclockwise rotating.Because this rotates, pressure arm 82a throws the abutment 71b of blade 71 away to right-hand, fast door opening 70b is opened and closed, thereby egative film is exposed.So, switching aperture according to the light value of subject brightness discharges shutter later on and photographs.

When after all rollfilms have been taken, carrying out, disposable camera 10 is intactly taken into dark place towards glue.In dark place, open bottom 16a, rolling after taking the spool of film take out and carry out development treatment, make photo.

Take out the later disposable camera 10 of spool and utilized factory again by concentrated transporting to from dark place.Utilizing factory to dismantle after protecgulum 15 and the bonnet 16 again, pulling down lens assembly 11, flash lamp component 12, mechanical component 13 from body base 14 and utilize again.At this moment, the soldering owing to lead of no use and software circuit plate etc. between each

assembly

11,12,13 is welded, so only just can remove each assembly 11～13 from body base 14 simply with releasing each claw 13a, 14b, the sealed of 14c.

Explanation is the example that is applicable to disposable camera in the above-described embodiments, and the present invention is not limited thereto, also is applicable to cheap simple and easy camera.In addition, explanation is to pull and push movable aperture board to carry out the switching mechanism example that aperture switches between 2 photographic lens in the above-described embodiments, but also can be the switching mechanism that pulls and pushes movable aperture board in the behind of phtographic lens on optical axis.

As mentioned above, according to camera of the present invention, owing to have:

Comprise in the closed position and apply the blade of power by spring, make shutter activation lever that blade opens and closes and from pressing the mechanical component that shutter release button is operated the shutter activation lever, the blade deenergized period moved to the switch switching part of on position from open position with moving and this moving process, blade discharged to opening direction to the off-position with the pressing operation interlock of shutter release button and from loading position;

Be provided with on being assembled with the flashlamp illuminating part and the circuit plate of the circuit component that constitutes flasher circuit is installed, be provided with the synchro switch of connecting corresponding to blade arrives the regulation open site, with the photometry switch of connecting corresponding to the switch switching part moves on position, with the light measuring circuit of measuring subject brightness corresponding to the connection of this photometry switch, and according to from the output of this light measuring circuit and the flash lamp component of the executive component that between two positions, moves;

When keeping phtographic lens, packed into according to the lens assembly of displacement mobile aperture board between little aperture position and large aperture position or between little aperture position and retreating position of executive component; So do not need each assembly with lead and software circuit plate etc. by the soldering welding,, therefore improved and utilized again and reuse so the assembling when making easily, carry out the decomposition of each assembly simultaneously easily yet.

Claims

1. camera is characterized in that having:

Be included in the blade that is subjected to acting force of the spring on the off-position, with with the pressing operation interlock of shutter release button, move to the off-position and during this moves, make described blade to evolution makes the shutter activation lever that blade opens and closes and pressing shutter release button to make the blade tripping to the shutter activation lever later on to tripping during, move to the mechanical component of the switch switching part of on position from open position from loading position; With

The flashlamp illuminating part is being housed, is being equipped with on the circuit board of the circuit component that constitutes flasher circuit simultaneously, be provided with the synchro switch of connecting corresponding to described blade arrives the open site of regulation, with the photometry switch of connecting corresponding to described switch switching part moves on position, with the light measuring circuit of measuring subject brightness corresponding to the connection of this photometry switch, and according to the output of this light measuring circuit and the flash lamp component of the executive component that between two positions, moves; With

Be assembled with keep phtographic lens and be equipped with according to the displacement of described executive component move, at the lens assembly of mobile aperture board between little aperture position and the large aperture position or between little aperture position and the retreating position.

2. camera according to claim 1, it is characterized in that, described mechanical component comprises that delay is moved along with the pressing operation shutter release button and described shutter activation lever begins to move delay device constantly to the off-position, and the action by this delay device makes the switch switching part move on position from open position.

3. camera according to claim 1 and 2 is characterized in that, described mechanical component is located at when making and loads in advance on the film receiving room and the integrally formed body base of spool receiving room of film and spool.