DE1907277U - CAMERA WITH INDEPENDENT IRIS REGULATOR. - Google Patents

Description

Farmer 515
. 5.10.62 Hz / Hp

Attachment to

Usage Pattern Aid Registration

EUGEN BAUER GMBH ₅ Stuttgart-Untertürkheimj At the island power station

Camera with automatic aperture control

The Erfindimg "relates to a camera with automatic Blendenreg" _β ler, wherein i ^ hich a measuring element according to the thickness of an affected from a photosensitive element current rotates on oppositely pivoted two coupled-together diaphragm blades

It is known to connect a pin to the measuring element Da die Schlitz® reached into a sehlits of each diaphragm wing due to the required "movement characteristics and the the position of the parts run at an angle to the movement path of the pen, there are considerable components of the pen to the

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Eugen Bauer GmbH H ₀ -Ir ₀ Bauer 915

S-feu ^ tgart-üntertürMieiiB. ■ · 5.1o.62 Hz / Öp

==> 2 -

Forces ₉ exerted on the wing, which are directed in the direction of the axis of rotation of the wing, sinfi ₉ siam motion drive so nothing I contribute & s but only. the friction on the sight seat and on the axis of rotation increase _β

The same occurs a _s wewa des? The pin of the measuring element only engages in the slot of the pin diaphragm wing and this only takes the second wing with it via a further pin-seated coupling.

These frictional forces ti ^ eten srwie-seneniasseii then nieht on this scale to _see if -iisohen instead of the pin = Sehlitz "= K" applimg z ^ imd the measuring element the one or two aperture = wings a gear connection% erwendet? T ^ irdo It has therefore been proposed to connect a 2-toothed crane with the measuring element _s v / which engages in a toothed segment of a diaphragm wing and to couple the second blade wing with the first ctureh one pin "sehlitz connection" - a wireless component of force produced thereby swisohen within the clutch member Lana measuring diaphragm blades ₅ scfern not a unique & e £ i ~ ned backlash OCE EalmradTsrninä'a.ag legal-lei, stat =

Since the currents that occur are so small, i.e. for the "wbt = relatively heavy measuring element öiae SHpfenl ^ gerong wsgen of the resulting Röibtmgsmomasite wabvBMcros. ^ , My.sa the measuring element sit tips ssin", 3: ;: -.; / 5 Sixltaenlfvgeruag has j @ dooh against a Zapfenlagsx ^ mg dsn H ^ e'itsilj class a © certain ©

Eugen Baues? GmbH

Stuttgart ~ Untertürkheia

RoH Buer 5 _β Io »62 Hg / Hp

Tumbling motion of the Sun mounted measuring element is unavoidable "At this parallel movement takes in the present trap also OCE to the pressure element associated gear part ₉ was su an un = · leads controllable change of Zalinspiels between impulsive em and beaten gear = This phenomenon illustrates the utility of a gear train for the intended purpose in embossing ₉ since the reduction in friction obtained in comparison with a pin-slide coupling is thereby possibly completely canceled. ",

In addition, when using a Zalmradu transmission In many cases, the measuring element and the diaphragm blade are the same desired linearized aperture scale not achieved »

These parts are avoided according to the invention ^ that one of the diaphragm blades is connected to the measuring element by means of a pin and slot connection and is coupled to the second diaphragm blade by a gearwheel and / or gear segment connection «,

Since the friction Mobi duck arising in the bearings due to the extremely low Gev / iohts of the diaphragm blades very small si2id _5, the bearing for the two diaphragm blades readily as a journal bearing formed Seisi = In this orphan can si © h a Zahnradüfeertragung sohaffen ₃ which ei-i abselnt same © li => permanent backlash has _s so that within & ev Ifepplimg practically no relbungsmomoment occur _β

Another advantage compared to a St ± ft-Sehlitg = connection

Engen Bauer GmbH

S does tgart »TJnt he turkheia

R „~ Ir _e Bauer 515 5 οΙο _β 62 Hz / Hp

There is a simpler way of manufacturing the two diaphragm blades ₀ When using a pin seat coupling between the two diaphragm blades, it is known to rivet a pin into one of the two diaphragm blades _9, which requires a great deal of care ₉ in order to prevent ^ that the extremely thin diaphragm wing is deformed *

According to a further feature of the invention is on the one diaphragm blade itself a toothed segment _f formed connected while the other diaphragm blade with a preferably made of plastic gear is "Any Toleransverschi © = descriptions in the direction of Lägeraehsen of the two diaphragm blades construction are meaningless ₉ in diesel * da a perfect ¹ engagement of the thin tooth segment formed by one diaphragm wing in the gear connected to the other diaphragm wing is guaranteed in any case «

For Erzielusig a proper aperture shape is NOTV / Endig ₉ that the diaphragm blades connected to the gear an exactly defined relative position au this assumes ₀ The © ine aperture is "wings, therefore, of the invention having d @ m gear j detachably connected Naeh another Merlctial and Iwar d ^: ji? art ₉ that diaphragms = vane and gear "after loosening del" - connection susinander twisted around their common Ls, straight axis Mz: ca &: i can, what makes a very convenient · adjustment possibility is created »

Teacher embodiments of the 3rf: are in the Eeieh · =

Eugen Bauer © mbH R ₃ -Hr ₀ Bauer 515 ■■ "" * ■%

Stuttgaart-Ointertürkheiii 5 .Io «62 Hss / Hp ■ /

nung reproduced «Bs seigern

_O 1 seen from the side shows a camera ₉ for filing in section in a simplified representation,

Figo 2 the camera seen from the front ^

Fig ο 3 = 5 different exemplary embodiments of the measuring element and Aperture blades in an enlarged view "

In de.i housing 1 of a camera lens are installed 2 ₉ 3 a viewfinder and a photo Selle 4 in the usual manner 33er _β of the photosensor in accordance with incident Selle Lieht erseugte Strom'wird sswei via lines 5? β ainem! feoswerk 7 supplied in which a measuring element in the form of © ines van der Strom der. Photoselle durohflossenen Hälunehens 8 Drehbax ³ g-slag'jrt ist _a Das Hähmehea

This engages in a well-known manner in the sight bits 11 of a diaphragm wing 12, which can be rotated with a pin 13. in the housing 1 attached plates 14 ₉ 15 is mounted ο Via pin 13 amsser the Blendeial.üäel 12 a-jclr-air. Cogwheel Ιβο This ίεΐ: ait the Biendenflügsl 12 with?; Ils its screw 17 ver'budden releasably. A niersaförni ^ er Bchlifcs 18 in the diaphragm _{wing 12 9} welohei ve η ds-r ί ^; 3 ""irau'oe If dr, rchriffs is allowed to fix the büilen rope 12 utid 16 stisin · = other in various arbitrary Etiati'Fstelluageni, Sin swsi = ter Bl end ®nf lüg al 19 is ο with a ευ pin 2 © är & Sxtav ³ stored ^, in the same way as the other flue, svrisshen the plates

Eugen Bauer GmbH R ₀ = Ir ₀ Bauer 515

Stuttgart-Untertürftheifc. 5 «lo _s 62 Hs / Hp

and 15 added »The diaphragm wing 19 has a toothed segment 21 on which engages in the gear 16 "

At their underlying ends of the diaphragm blades are widened 12 and ■ and have mutually facing ₉ substantially as wedge-shaped recesses 22, 23 "This form% n ° together the opening of the receiving aperture and are located symmetrically in the beam path behind the lens 2" Behind this aperture is the pilm window 24? behind which the film 25 to be exposed is passed o

¥ ie from FIGS »4 and 5 is the major ₉ @ h can the two diaphragm blades aperture formed any arbitrarily © räumliehe location opposite. Glue in measuring mechanism 7.? when the two diaphragm blades are respectively formed and stored ο In the embodiment of FIG _e 4, the two pins 13 are 'and 2o' arranged side by side and the two diaphragm blades Ic 'and 19 "adapted ₉ so as to extend substantially vertically downwards ,, This results check dadureh a lateral Tersetzung the aperture sum measurement "factory 7j wherein the distance in the vertical direction of the length of the two diaphragm blades 12 'and 19' dependent 'when AiAsführungsbeispiel according to Figo 5, the pins 15" and ^{2o! i} as in However, in the embodiment according to fig _s 3 the diaphragm wing 12 ^s ' is angled ₉ - that in connection with the diaphragm wing 19 '' it forms an aperture ρ which is further laterally offset from the measuring mechanism 7 than in the embodiment 4, however, ₉ was closer to the measuring mechanism 7

Eugen Bauer GmbH R ₀ -Hr ₀ Bauer

Stuttgart-Untertürkheim 5aIo «62 /

This Ausfülmingsbeispiele show that by sweeltentspreehende design of the two diaphragm blades each "arbitrarily © räumiielie ■ Location can be reached on forming aperture within the Kameragehäu .- = · ses ₉ without, the erfinömigsgemässe Kupp" development compound from the measuring element for a Biendenflügel and from one to you have to change other diaphragm blades "

A spring can be attached to the frame 8 in a manner known per se, "which endeavors to bring the frame and the diaphragm blades connected to it into an end position, for example according to FIG. A special design of the measuring mechanism can be achieved _{9 so} that the frame assumes a certain angular position with every strength of the current flowing through it.

The diaphragm blades keep the position _9, for example according to Fig. 35 for as long as the Str © m generated by the photocell 4 under a certain value remains "Smaller more Lieht © in ₉ s © increases the current intensity in the measuring unit 7 and the frames 8 rotated counter to clockwise. As a result of its engagement in the slot-shaped opening 11, the pin Io takes the diaphragm wing 12 with it and swings it around the pin 13 so that its recess 22 enters the area of the recording beam and dimmed the lens more and more from its side The toothed wheel 16 connected to the diaphragm blade 12 is rotated equally in the clockwise direction and swivels the diaphragm blade 19 counterclockwise around the pin 2 © _{9 as a result of engagement in the toothed segment 21}

Eugen Bauer GmbH R ₀ = Ir ₉ Bauer

Stuttgart-Untertürklieim '5 ο Io ₈ 62

the recess 23 of the diaphragm wing 19 enters the recording beam path from the other and % w & stop down

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Claims (2)

Bauer GmbH R ₉ -Ir. Farmer 915 Untertürkheim 5. «· 1ο.β2 Hs / Hp j ' ^A Claims Camera with automatic _{diaphragm regulator 9} in which Bi © h a measuring element rotates according to the strength of a τοη -a light-sensitive element influenced "current and thereby pivots two diaphragm blades coupled together in opposite directions ψ @ τ ~ , characterized ₉ that the one diaphragm blade with the measuring element through. a pin-seat connection and is coupled to the second diaphragm wing by a gearwheel and / or 2-tooth segment connection « 2.! Camera according to claim I ₅ characterized ₉ that at the one diaphragm blade (19) itself a toothed segment (21) is formed and the other diaphragm blade (12) is connected to a Benefits "as made of plastic gear (16)" 3 «A camera according to claim 2, characterized in-that the diaphragm blades (12) is connected to the gear (16) so releasably ₉ that Blenaenflügel (12) and gear (16) after loosening a Yerbindung (17» 18) to each other about their common bearing axis (13). twisted / grounded »