DE1808575U - CAMERA WITH COUPLED ELECTRIC LIGHT METER AND INDICATORS IN THE FINDER. - Google Patents

Description

P.A. 646115 * 10/29/59

Seles lkom * «♦ Stuttgart, 1fi · Ofc * · 195S

an $ a * 8267

Camera not coupled · »IiDielectric. B * lioh ~ tungsmesser and Aussigen in the Suöher

The hunt concerns camera «with coupled 1 ichtelektriseilen * BelicfetuGgeeeaaer. This includes cameras like this » for which, according to the presetting of the "lending factor, for example de? Beliöktungsselt, by means of hand-operated or motor adjustment of the "wide Bellohtungafaktora, in this case the diaphragm «adjustment position on the measuring instrument is her »divisible. The Äeuemuig looks at the Ka »#raa beetiemte service aids and selects the »from the number of known ones Those out that give the user sufficient and Give hints »about the exposure itself at Tüller reitBchaft, that old the göspannten camera in front of the eye, do adjust properly can without that he sraö different tone Schatt characters between a Tielsaal, the only sum rope "ground geeraueat"

The hiring adopts as a basic idea "that the type of

Motives for recording, mainly »whether it is about dormant or moving objects are "decisive for the setting gear" and that the camera is connected to the camera first selected an encrypted matched to the type of motif and the setting is made. The corresponding opening of the obj ectiT diaphragm is then made to cover the measuring device of the exposure meter with a countermark formed, dl * «im Each guide organ or a fixed reading index can be, Ia the Further consideration, that the "Xamerabenutker dl" set Tereehlausaeit remains conscious and he does not affect any special aedäohtnisstutse need »are near the leuerumg

PA

Z 6259 / 57a Gm '· ""

Zeisa Ikon AG "

Today page 2

for cameras with a coupled photoelectric © light meter Optical-mechanical transmission means are provided, which display elements in the viewfinder as setting aids for exposure factors only for the comparison with the light meter and on the other hand for the use in exposures coming aperture openings in a separate viewing arrangement perform »

The aperture display in the viewfinder supplements the adjustment display in such a way that the depth of field can also be assessed. which results from the exposure setting made «In addition, the aperture display makes the approximation to the The limits of the possible setting range are recognizable. This means that the user has sufficient control options Available to adjust the exposure with the camera in front of the eye without having to do anything special Considerations is burdened »The same goal is also pursued by the presentation of the two advertisements in separate Visual arrangements that can be next to each other · Opposite a combined display / aperture display increases the clarity and the user is not able to get through Deliberation held up if he does not want to deal with questions of depth of field.

An initial setting of the shutter speed from which the innovation When it comes out, the only thing that matters is to have only a constant shutter speed. "Accordingly, the fire extends

RA. 129 900 * 02.26.60

Z 6259 / 57a Gm February 24, 1960

Zeiss Ikon AG. ■

New page 3

also on cameras without time settings, e.g. on motion picture cameras «

The advertisements can be arranged in the search field itself, especially on the sand of the same · Should they be next to the Searcher field appear, corresponding fields are also provided there for the relevant pointers or pointers with scales, scales with fixed marks, possibly also just individual numbers, for presentation. Instead of Numbers on the scales can also be symbols, The3 applies to both in and next to the viewfinder field made visible scales »

The display elements presented in the viewfinder consist in a special embodiment of the innovation in a preferably angled pointer piece of the exposure meter along with an index or a fixed counter-mark on one side and in a replica of a f-number scale with reading index on the other side. The means of transmission for Presentation of this display element? in the viewfinder essentially consist of preferably provided on the front of the camera * see light entry openings for the brightening or Reflection beam paths, from the display field for the display elements in the viewfinder limiting masks, from a mechanical coupling connection between the replica of the f-number scale or the carrier for the reading index and from mirrors. The masks can be designed so that they are an indicator for the pointer position in connection with

P.A. 129 900 * 02.26.60

Z 6259/57 * & m February 24, 1960

Show Ikon AG.

the comparison position as well as a counter mark. The the The mask assigned to the aperture values can be displayed in the same way, i.e. it can display the entire Aperture scale or at least a significant display figure offering the same for sale along with a reading mark; she can but also designed as a viewing opening which essentially only presents an aperture value, in order to save a reading mark be, in which the individual diaphragm values enter one after the other when the diaphragm adjusting device is turned and for presentation reach"

A recess in the camera roof surface can provide for a simultaneous display that is possible in addition to the viewfinder image Readability of the pointer of the exposure meter to be taken from above «

Depending on whether the! Division of the f-number scale or the carrier for the reading index is mechanically coupled to the diaphragm actuator of the camera and moves in the performance In the viewfinder, the aperture scale past a fixed reading index or the scale is fixed while the index moves.

The display elements in or next to the viewfinder field can be made visible in various ways. The concerned Elements can be removed by protruding into the beam path, preferably approximately at the point of the other side Focal plane of the eyepiece, are detected, they can also go there or at a conjugate point * In particular, in connection with single-lens reflex cameras, the reflection of the

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RA. 129 900 * 26 2

Display elements via the one provided in the camera surface Penta roof prism given preference, whereby It is easy and with a minimum of additional expenditure of resources to achieve the intended images on the land of the viewfinder field a or next to the viewfinder field.

Χα weaentliciien requires "0 to each of the camera Yordtr wmä vargeeenenen Idoateintritt" opening for the illuminating beam paths as well as each "inea oblique deflecting mirror, via dl *" light bundle 1 "suitable inclination on the" eit ~ borne £ rie "e" fiaea * a eu throw Äwiaciieii the Ualenk * piegela and the. e «itXioh« a iTlemenfläohen «ind dl« rom licht bund el xu durolieetsendeÄ scales »eheiben arranged and the ice Abgrejasungen or SchÄtten Uiarand'aiigefiguren, indeimarken and the like. preferably in the fozm tone iiaaicen provided; after entering into the «Pri» - Ä «ziseiteÄfläciian the concerned. AlabildungestrahleÄ-course at the j "because · opposite roof surface and then fl" Jc ~ advantage at the front lower irismeneohrägfläoli "r * what aie, ^ e according Eintritterichtun" the prism, "α E" nd baw the viewfinder Feldee. »« Befit dft · searcher field to be steered «'

the ISjuaera under different conditions, d.lu "It filaien vereohiedener I * icht" pfindlioh ^ Jceit and under The application of filters and operations can be carried out by a correspondingly effective device that allows through a twisting of the instrument «anoint or be ·· Differential gear β to co-plan the high linearity The pointer deflection allows these changes of the term to be taken into account.

The Seuerung is en hand AußführungsToeiapiele d 'rstellenden Zeiehnungen explains "r <m to the

t Ms 3 additional arrangements ran aperture and exposure indicators in connection with the »viewer picture,

fig. 4 a front view of a Lientei access opening for the brightening »β trays and a device for setting tone pilm sensitivities single-lens reflex camera,

flg. 5 a partially vertical stringed tordera »- view »it de? Representation of a possible coupling between the diaphragm actuator ttsw. The primary electoral member and the union Aperture scale,

fig · 5a a side view of the Suppelrerbinduiig Ed. 5,

fig «6 a bar division of a different type of dome connection in Torderanaicht»

fig. ? «A representation of the facility to achieve des XameraabgleiohB and * ur consideration the film sensitivity, in the horizontal cut » seen and

fig. 8 illustrates a "Mnspiegelungeetrahl ·" - Ganges daroh seen a pentagonal roof prism of ol 's _{f o} seigen

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Ia FIg. 1 is »it 1 da * dta eye aahtfeare Saeherfeld β · - draws »de» the picture of the diaphragm scale 4 moving with the diaphragm setting serving · Uscrandungsfigur 2 on one side. This * border «figure 2 also betrays the fixed index mark 5 * on the same side

On the opposite side is the »searcher field Figure 5 for the display of the Instruaentenaeiger 7 associated, whereby this reference figure is a claw-like one has a fixed blessing mark 6 · When dividing the pointer * symmetrically on Kinuaenspitxe iat Inatru »enteiiafcgleieli achieved. Me now facing the fixed note 3 Aperture sani indicates the exposure time set on the door in terms of light value, corresponding aperture opening *

Depending on the arrangement of the 2 , instead of the border figure 2 comprising the sante diaphragm scale, there is only a Jenetar 8, within which an aperture number of the diaphragm scale that moves with the diaphragm setting or with the camera adjustment appears. The finder field 1 also contains, according to this layout, a known sectional image removal area, which consists of two crossed prism wedges 10 arranged within a mat disk ring 9.

The Ausführungsfora the Hg · 3 differs τοη the Torhergehenden characterized see, da3 instead of with the Sin-adjusting movements ά. ^ Ν camera aitwandemden aperture scale liier

βΐηβ within the cream «1t fe« t arranged «aperture scale Let it be provided, opposite which index mark 12 (pointer) moves eloh.

Fig. 4 shows "one-eyed" single-lens reflex camera, to which the hiring ideas are applied on the way of the two-sided reflection of the anaegean beam paths via the pentadacliic prism in front of the Eugaviale Light entry openings 14 or “15 provided” through which dl “are intended to run for the brightening beam passages required for the reflection. More details about this * are shown in the following Piguren · 16 iet a also in the upper part of the Xamerafronteett * Yorgeeeftene "ATagleichrädehen, since" extending around a vertically ztr EameraYorderfront "Achee rotatable iat wa & cheap is the finger-row of the hand holding the earner" lies * This little earpiece 16, which is activated to make the camera ready to take a picture, that is to say, the setting of the case factors according to the conditions prevailing on the object, contains a sub-device 17 for taking into account the fila sensitivity dee jeweil »r * r ~ used Aufnaheeaaterials. For more detailed explanations about this and about the mode of operation of this device, bind a nook au treating Hg · 7 mx . 20 is the entrance to the light for the upper part of the camera, which is also housed in the photoelectric cell.

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Xn Tig «5 1st on hand tine« parallel to the conveying surface, guided through the Pig's camera. 4 «ine arrangement for the reflection of the pointer of the electric light meter opposite a faire (rain mark on the one hand and for the binding of a diaphragm kaia also opposite a fixed countermark on the other hand in the pentft roof prissui. M» further is a meehanisoae connection awischen de » Aperture gate selector member of the camera and the support of a reflective aperture plate disclosed. In this figure 21 the measuring element, which carries a pointer 22a, 22b angled in a manner known to Oiott duroh the viewing opening 24 τοη will be seen at the top »· The« fixed counter mark 23 is preferably designed as a circular ring »

The angled pointer part 22b is ^ r input reflection in the PentadachkantpriBsta 28 and thus the visualization of this pointer in the end bsw · beside the Sueherfeld. Qs this allow su, iat an inclined 21 && ~ or hollow "mirror 25 provided the τοη the front Lichteintrittaöffnung coming AufhellungBatrahlea not shown receives bundles and the required inclination on the seitliehe Priamenflache Tl directs · Zuearomen with the pointer piece 22b is a swlse & s 22b and 27 provided

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adjustable hank "26 with a cutout, the bo is cut out" that si "results in the indication iigur 5 nebat kiHuaea-like solid eye hairs 6 shown in FIGS. After entering the prism, the first image path runs in Eicatung onto the opposite "roof surface 29, το" where it is thrown against the forward "lower and inclined prismatic surface that is inclined backwards. From there, the Xbbildungsatrahlenbtindel according rüokwärt becomes reflected "against the Austrittsfläohe de""Prisisa β and sifting on dae eyepiece" The beam now has a transverse outward direction, it eodaß an image on the edge dee Sucherfeldea or immediately adjacent HTM Sueherfeld shouting is suitable *

On the other side there is an inclined mirror 31, which allows light coming from the other light entry opening at the front of the camera to reach the prism side surface 32 at an angle Transparent body and iron mask 35, which results in the outlined outline 2 together with a fixed mark 3 or just the window θ in FIGS. 1 to 5 The only remaining path of rays is the connection of movement between these “blenaenacal carriers

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and explain the aperture setting ring or Yorwanl ring 44 «u.

The shutter 34 is a foot up, «Ine» icrele— eegaent-like body 36 (b. also ¥ ig, 5a) dtr us elm « fixed axis 37 rotatable let. With an angular connection 38.39, this body is 36 with a rod 40 related »which has its pivot point at 41 and one. Follower pin 45 carries. This follower pen βchieifts one on the sand dee aperture ring haw. Blendenyorwahlringee 44 rorgeeeaenen contour curve 45 «Bine feder 42 int

press the removal pin 43 βteta against this "HShen-45" u.

They operation of the arrangement is such that feel a Sinetelldrthun "of Blendenatellringe l" sw "Blendenrorwahlringe" 44 a Auelenlning the rod 40 and daadLt rotation vm the Ache "is effected 41, tmm other side again el" enteprechendeo way and Henrandern de " llendenekaXträger »34 compared to the fair brand 35 % urge iiat. So if the o ^ ectiTblead size is changed, the corresponding diaphragm numbers as of the fair O-egenmarke 3 Yorü ^ hike bsnr. 1 »ϊβη-eter 8 visible" ground * Buren the Sinspiegelung brought this Torülserwcndernden Blendensanlen in or nefeem of Suchergeiiell-tlield mxr figure eodaß u * r Kaiaerabenutser always ühnr the Abgleichlagt at the Xamerm under roreingeetellter Since entspreeaende aperture

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size 1 »clear is o Should use this aperture size for reasons the depth of field or the like not be desirable, then you can select a different exposure time other ready-to-use pairs can be obtained »that» within »des the same light value and the appropriately large aperture having"

Another possibility of making aperture values visible or next to the Su field is ΰί9τ fig. 6 on the other hand, since the diaphragm scale carrier of FIGS. 5 and 5a was only capable of one movement, the arrangement of Hg. For this purpose, the blend holder 46 is on "In" rod 4? geaetst, which, guided in plain bearings 4-8,49, tos aperture stud ring bssw * gate selection ring 44 is controlled via a toothed segment 52, a toothed pinion 51 and a toothed rack 50

In * ig. 7 is 16 the ready in fig. 4 shown «, on U9T camera front wall 1? provided adjustment wheel, which in its middle part has an adjustment device for the £ ii »e» pfindlicafceit fesw · aaoa for the reference toh filter factors 17 * Kit this «Abgleienräde & en 16, the gear 53 feet connected» Dae gear 53 runs t loosely on $ . · Τ axis 63; it carries the "cogwheel 54" running on it the sense of error

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for the film sensitivity substantially performing disk 17 is connected to the shaft 63 fixedly connected allows * EIA reading index of 16 to adjust the respective ülmempfindlicakeit or · to read.

The gear 53 stands with the on the Blendeameehenismu " forwarding gear 58 in connection, while the Gear 54 with gear 61 in connection "tent" das in turn with the linearity of the pointer deflection dee instruments compensating curve 62 connected let

The single element 1? for the rilmempfinäliehkeit is together with its axis S3 against the action of the spring 5? axially inwardly displaceable. This spring 57 is supported on the one hand on an internal rotation of the adjustment wheel 16 and on the other hand on the inner surface of the disk 17. A plate 55, which has a tooth 56 coupling the teeth 54 and 53, is fastened on the axis 63. This coupling connection between 53 and 54 is only given, however, if the adjustment element 17 is in its outer position as shown. If one presses the element element 17 against the action ύ & τ spring close to the inside, i.e. towards the inside of the Kaaera, then the plate moves 55 likewise continues in general with this sighting and <iar coupling tooth 56 comes out of gear 53. The connection from one gear 55 to the other cogwheel 54 is thus interrupted.

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JSe succeeds al »o, through. Turn the Abgleiehrldehene 16 over 53,58 to adjust the BIeMe * u and to turn the Kurye 62 over 53,54,61. If the instrument is trained as a rotary instrument, then it is twisted "le Sense", and "was so long, the deokung £ wischen the" instruments less and the fixed "quality mark brought about. In this case, the return path corresponds to the size of the pointer deflection and thus the light intensity that hit the ropes. If, however, only a certain degree of sensitivity is to be screwed in, then it is necessary to turn the adjusting device 17 into the rotation of the Aljgleichwheels 16 and twist it, whereby as a result of the wandering of the tooth 56, the connection between the Sannwheels 4 and 55 is loosened. With the rotation τοη 17, only the gear wheel 24 is now rotated, which again acted via 61 on the curve b2w · dae instrument. There is _no effect on the sighting of the aperture.

In addition, filter factors can be taken into account in a manner known per se, in which "the dl" relevant film sensitivity number, see 18, is now not compared with the index mark, but rather with the tilter factor numbers 2, 4 or 8 applied next to it *

Raise the Abgleichrädohen 16 In ά ^ τ camera front panel 13 as "window 15 for the whitening" etrahlenga "g pre *

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see », which hits the inclined mirror 25 and το »there also obliquely upwards to the neighboring Priaaea side surface is reflected. For better bundling of this beam path »and thus for brightening purposes If a converging lens 60 is provided, this tuck lens can be omitted if the mirror 25 is designed as a concave mirror will. To simplify the construction and to piateer As a result, the gear wheel 58 has a kidney-shaped design. nehaung 59 * through which the brightening beam passes *

In the thirty * 8 prism 2θ iat under Sinzeiöhnung! Jfrnspiegelungsetrahlenganges represented the seen of o "ben · tone of a light immersion rides opening 15 enters a" by both drawn boundary "radiate shown beam onto the inclined mirror 3Γ» ron where it Hiohtung is reflected on the lateral prism surface 32nd Äach corresponding refractive the beam runs in the interior of the Prisaezikörpere toward the opposite rare wall 33 $ ron where it is thrown forward and was "against the lower inclined prism surface 64 on the Prisaenvorderseite · sound here is The bundle is thrown back in the direction of 41 «light exit opening of the prism», whereby & * r a delimitation beam emerges within the G-ft field of view diaphragm 66, thus causing an image within the viewfinder field »while other · Segre & £ UBgs * trehl on this

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Aperture hits. By means of a corresponding recess in this cover 67, a display can be made here next to the search field, "talk trap is right."
recognize »that the light rays lying approximately within these delimitation rays can achieve the desired image and display in or next to the Suoherfeld *

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Claims (1)

Z 6259/57 * sqm Stuttgart, February 24, 1960 Zeiss Ikon AG-, _Jf Today's protection claims 1 · Camera with coupled photoelectric exposure meter, characterized in that optical-mechanical transmission means are provided, which the display elements only for the comparison with the light meter and for the aperture openings in the viewfinder that are used during exposures in a separate viewing arrangement perform 2a camera according to claim 1, characterized in that the Transmission means for presenting the display element in the viewfinder essentially from light entry openings the camera, from the masks that determine the corresponding display field, from a mechanical coupling connection between the diaphragm actuator and the scale and index carriers to be displayed in the Suoher as well as mirrors « 3ο camera according to claim 1 and 2, characterized in that a fixed support for the diaphragm reading index is provided and that a support for the movable one in the viewfinder Aperture scale to be presented with the aperture control element (aperture preselection element) in mechanical coupling connection stands" 4 · Camera according to claim 1 and 2, characterized in that a solid support for the aperture to be displayed in the viewfinder - 2 = - scale is provided, and that the carrier for the movable Pointer with the aperture control element (aperture preselection element) is in mechanical coupling connection 5. Camera according to claim 1 to 4, characterized in that the mask determining the display field for the aperture openings is designed so that the entire aperture scale appears in the viewfinder 6. Camera according to claim 1 to 4, characterized in that the mask is designed so that it is like a show or Window opening and saving an index only one or in addition to this directly makes neighboring aperture values appear in the viewfinder » 7. Camera according to the preceding claims, characterized in that an angled pointer piece and the masks as well as the carriers for scales and indices are arranged in such a way that they are penetrated by the light coming through the inlet openings on the camera « 8ο camera according to the preceding claims, characterized in that that the mask assigned to the pointer of the exposure meter is designed so that it is a reference figure and presented an adjustment mark 9. Camera according to claims 3 and 4, characterized in that that between the diaphragm actuator and the movable diaphragm display means made visible in or next to the viewfinder field a lever connection is provided « 10. Camera according to claim 9, characterized in that the
Movement transmission consists essentially of a lever connection (40,36) controlled by a height curve (45) on the diaphragm adjusting ring (44) via a scanning element (43), of which the latter lever has a diaphragm scale carrier (34) or a reading index (Fig. 5 and
5a). 11 «Camera according to claims 3 and 4, characterized in that that between the diaphragm actuator and the movable diaphragm display means made visible in or next to the viewfinder field a gear drive connection is provided «, 12. A camera according to claim 11, characterized in that the pinion connection consists essentially of a movable one Aperture display means carrying longitudinally movable rod (47) which is provided with a toothed rack (50) is and is controlled via a pinion (51) of a toothed segment (52) on the diaphragm adjusting ring (44) (Fig. 6). 13. Camera according to the preceding claims, characterized in that that when applied to a single-lens reflex camera instead of the aperture actuator, the actuator the aperture preselection device is provided * 14 »Camera according to the preceding claims, in particular according to claim 13 »characterized in that the displays are made visible in or next to the search field Carried out on the way of the reflection via the penta roof prism provided in the camera roof surface is. 15a camera according to claim 14, characterized in that an the front of the camera on both sides of the middle section have light entry openings (14,15) are provided for the brightening beam paths required for mirroring and that Optical means are used to make these light rays the elements to be displayed (scales, indices, Pointer) to enforce or to pass them by and at the required angle of inclination on the respective lateral entry surfaces of the prism to let go 16o camera according to claim 15, characterized in that the optical means consist of plane or concave mirrors of suitable inclination 17. Camera according to claim 13 to 16, characterized in that that the pointer of the meter of the photoelectric Exposure meter is angled in a manner known per se to in addition to the presentation of the meter in or to enable outside reading next to the finder field » 18 * Camera according to the preceding claims, characterized in that that it is provided with a device for taking into account the film speed ", 19, camera according to claim 18, characterized in that the device for taking into account the film speed is structurally combined with the Abgleiohorgan. 20. Camera according to claim 18 and 19, characterized in that the actuator for taking into account the film— sensitivity is connected to the adjustment device by an externally operable releasable coupling that it allows the adjustment process (control of actuators for exposure factors and turning of the Cam gear to compensate for the sewing linearity of the pointer deflection) and, on the other hand, only the process for taking into account the film speed (Turning the cam gear alone) to perform » 21 «Camera according to claim 20, characterized in that the adjustment wheel (16) via gears (53, 58) on the one hand with the diaphragm forming mechanism and, when the clutch is engaged, via gears (53, 54) on the other hand with the cam gear to compensate for the linearity of the pointer deflection ( 62) is in connection and that when the clutch is open only the connection to the cam gear (62) is given (Fig. 1) _a 220 camera according to claims 20 and 21, characterized in that that the releasable coupling from the spring arrangement (5) between the adjusting wheel (16) and the device (17) to take into account the film speed, which runs within the gear (53), the device (17) supporting and axially displaceable axis (63), the plate (55) attached to it and the das Gear (54) penetrating and in the coupling position in the gear (53) engaging coupling tooth (56) consists (Fig. 7) ο ο Camera according to claims 19 to 22, characterized in that that the gear wheel (58) has a recess (59) for the passage of a whitening beam path (Pig. 7). zo dta usual prices gelWert. German Patent Office. Utility modelH *.