DE2045498C

DE2045498C - Device for viewing image films for the purpose of checking

Info

Publication number: DE2045498C
Application number: DE19702045498
Authority: DE
Inventors: Josef 8043 Unterfohring Maurer
Original assignee: Bavana Atelier Gesellschaft mbH, 8000 München
Filing date: 1970-09-15
Publication date: 1973-06-07

Description

siierung vorgesehen ist. Bei Normalfilm würde übrigens auch eine solche formschlüssige Einrichtung
nichts bringen, denn bei Normalfilm fallen bekanntlich vier Perforationslöcher auf einen Bildschritt.siation is provided. Incidentally, such a form-fitting device would also be used in normal film
nothing, because with normal film, as is well known, four perforation holes fall on one frame step.

Zweckmäßigerweise wird deshalb das Fenster in 5 Trommel 11 zugeführt unc' ^lia."j Filmlaufrichtung eineinhalb mal so lang gewählt wie Trommel 11 wieder abgeführt wir . _Kudd1uih,Appropriately, therefore, the window j film running direction is supplied in 5 drum 11 unc ^'lia. "Chosen one and a half times as long as the drum 11 again we paid. _Kudd1uih,

ein Bildschritt, und es ist die Fernsehkamera um ™« Trommeln ist ferner mit einer Kuppiuntone picture step and the television camera is around

einen Winkel entsprechend einem halben Bildschritt
nachstellbar. Da die größte Abweichung eines Filmbildes von der Fenstermitte einen halben Bildschritt io
in Laufrichtung oder gegen die Laufrichtung des
Films beträgt, genügt eine solche Nachstellmöglichkeit völlig.an angle corresponding to half an image step
adjustable. Since the greatest deviation of a film image from the center of the window is half a frame step io
in the direction of travel or against the direction of travel of the
Film, such an adjustment option is completely sufficient.

Wenn ein Fenster in der umlaufenden Trommel
vorgesehen ist, werden mit der Fernsehkamera je- 15
weils Bilder aufgenommen, die auf dem Schirm einen
Abstand gleich dem Trommelumfai.g haben, wenn
also die Trommel einen Durchmesser von etwa
30 cm hat, was zur Aufnahme einer Fernsehkamera
etwa notwendig ist, beträgt also der Abstand von ao nicht dargestellten Monitor züge.«»...When a window in the rotating drum
is provided, each 15
because pictures are taken that appear on the screen
Distance equal to the drum circumference if
so the drum has a diameter of about
30 cm, which is enough for a television camera
is necessary, the distance between ao not shown monitor trains is. «» ...

zwei betrachteten Filmbildern auf dem Film etwa ^- °"'^f"> "^{nes Fl!mes 18 Wird d} two viewed film frames on the film about ^ - ° "' ^f "> " ^{nes Fl! mes 18 If d}

einen Meter. Darüberhinaus ist es in diesem Falle erforderlich, daß die Fernsehkamera immer voll mit
der Trommel umläuft, und dann muß die Stromversorgung für die Fernsehkamera über Schleifringe zu- 95
geführt werden, und dasi Videosignal über Schleifringe von der Fernsehkamera abgenommen werden. one meter. In addition, it is necessary in this case that the television camera is always full with
the drum rotates, and then the power supply for the television camera must be connected via slip rings
and the video signal can be picked up from the television camera via slip rings.

Wenn diese beiden Forderungen als nachteilig betrachtet werden und deshalb vermieden werden sol-If these two requirements are viewed as disadvantageous and should therefore be avoided

len, kann die Vorrichtung nach einer speziellen Aus- ₃o tor^ betrachtet werbenKann. -^.^len, the apparatus may according to a special education ₃ o tor ^ considered advertise can. - ^. ^

führung der Erfindung in der Weise ausgestaltet wer- mit der *e Jrontmti >^m ₁₆ Implementation of the invention in the manner with the * e Frontmti> ^m ₁₆

den, daß die Trommel vier Fenster aufweist, daß eine umgebenen B⁶¹^""^¹""^ _xf können mehrere Kupplungseinrichtung vorgesehen ist, mit der die **^η*^ια* ""-«hen sein die gleichmäßig überthe fact that the drum has four windows, that a surrounding B ⁶¹ ^ "" ^ ¹ "" ^ _x f ^{, several coupling devices} can be provided with which the ** ^η * ια * "" - «hen be evenly over

Fernsehkamera jeweils mit einem der Fenster ausge- ^.^fdeTxÄl verteilt sind, beispielsfluchtet gehalten wird, und eine Rückführeinrich- 35 ^de^ ^Umfang. ^α"Λ™_Γ statt einer einzigen Kup_P-tung, mit der jeweils nach Umlauf eines Fensters um «eise vier soleh« Fenster J beispielsweiseTelevision camera each with one of the windows out- ^. ^ FdeTxÄl are distributed, for example, is held in alignment, and a return device 35 ^de ^ ^scope . ^α _"Λ ™ Γ -Tung instead of a single Kup _P, with each circulation by a window to" else four J Soleh "window, for example,

90° die Kupplung gelöst und die Fernsehkamera um lung 2 an' ^de^^r~ Vorgesehen, mit denen die etwa 90° zurückgeschwenkt wird. Bei dieser Ausfuh- vier losbare Kupplungen vorg ^ _^_90 ° the coupling is released and the television camera is provided around lung 2 an ' ^de ^ ^r ~, with which the about 90 ° is swiveled back. In this version four detachable couplings are provided.

rungsform haben die !«trachteten Filmbilder nur F^ernf^hkamer*'V'n^ Darüberhinaus ist dann jeeinen gegenseitigen Abstand von einem Viertel des 40 ^fJ^^^^Tr^l^ mit der Trommelumfangs, und darüberhinaus braucht die we ils eine Rue*fuhremr, cn u g s ^ _pem insurance form have! "sought film images only F f ^s is ^hkamer * 'V'n ^ Furthermore then jeeinen mutual distance of a quarter of the 40 ^ fJ ^^^^ Tr ^ l ^ with the drum circumference, and beyond needs we ils a Rue *fuhremr, cn ugs ^ _pem

Fernsehkamera nur jeweils um 90° hin- und herge- die Kupplung ²¹J^e^^lsj;X_enkt Worden ist, und schwenkt zu werden, so daß die Stromzufuhr und vor sehkamera 14 um 90 versen _zuruckge-TV camera only back and forth by 90 °. The coupling ²¹ J ^e ^ ^ls j; X has been _lowered and swivels to be so that the power supply and in front of vision camera 14 back 90 _verses -

allem die Abnahme des Videosignals über flexible die Fe™^ehkame5^a _s ¹^ ^U™_it "„ nächstfolgenden Leitungen erfolgen kann. Es muß dann allerdings der 45 schwenkt wird, bis sie rr»t _näch can all decrease the video signal via flexible Fe ™ ^ehkame 5 ^a _s ¹ ^ ^U ™ _it "" next transfers shall take place. It must then, however, which is swiveled 45 until rr »t _{night vi}

Aufwand für die Kupplungs- und RücVführeinrich- Kupplungsennch _ung 21 verr^t " _{wie 23>} Expenditure for the clutch and RücVführeinrich- Kupplungsennch _un g 21 verr ^ t _{"like 23>}

tung in Kauf genommen werden, so daß je nach dem ste Pf™»' »^J^ ■„diesem Falle flexible Kaspeziellen Anwendungsi-all der einen oder anderen JA^^^ZVr Abnahme des Videosig-Lösung der Vorzug zu geben sein wird. be zur Mromzuiuiii utung to be accepted, so that flexible depending on the ste Pf ™ » '' ^ J ^ ■" this case Kaspeziellen Anwendungsi-all one way or another JA ^^^ zvr decrease in Videosig solution will be given preference. be zur Mromzuiuiii u

Die Erfindung soll an Hand der Zeichnung näher ₅o ^nals gesehen sem. ^ _{entwickelten ΡΠΐηε}η mit erläutert werden. Es zeigt ^{MU e}'"".!" M_ittei_{n er}eibt sich gegenüber denThe invention is based on the drawing nearer ₅ o s ^nal seen sem. ^ _{developed ΡΠΐηε} η to be explained with. It shows ^{MU e} '""."M i _n _itte _he EIBT opposite the

Fig. 1 schematisch eine Aufsicht auf eine erfin- [«nsehtechniKhen^ Möglichkeiten1 schematically shows a top view of an inventive possibility

dungs⁸gemäße Vorrichtung und ^.,,.„, , ^L^Two^ daß meS Entwicklungs-dungs ⁸ according device and ^. ,,. ",, ^ L ^ Two ^ that meS development

F i g. 2 einen Schnitt längs der Linie 2-2 in F1 g. 1. der erhebliche Vorteil, oau _χ _{s He uber}.F i g. 2 shows a section along the line 2-2 in F1 g. 1. the significant advantage oau _χ _{s he} uber.

Die in der Zeichnung dargestellte Ausführungs- 55 maschmen von einer emz.geη _«gratenThe execution shown in the drawing is from an emz.geη_ «g guess

form der erfindungsgemäßen Vorrichtung besteht aus wacht werden'^JJg Jg^ %^T£ _erha,_ten wer-form of the device according to the invention consists of wacht be '^ JJg Jg ^ % ^T £ _erha , _te n be

einer umlaufenden Trommel 11, die m.t einer Welle tat, die au ™^technSJungsieie Betrachtunga revolving drum 11, which did with a shaft, which is also the ^technical aspect

12 in nicht dargestellter Weise am Ausgang einer den kann »t^uch e„je ermuo g ^ 12 in a manner not shown at the exit of a den can "t ^ uch e" je ermuo g ^

Filmentwicklungsmaschine gelagert ,st, und die ein ^"^"^^""Entwicklungsmaschinen durchFilm developing machine stored, st, and the a ^ "^" ^^ "" developing machines through

S^ÄSS^^^STr^rtfS ~ « an ,-«. Pe,»- dem größten Teil ihres Umfangs umschließt. In dem nal möglich sind.S ^ ÄSS ^^^ STr ^ rtfS ~ «an, -«. Pe, »- encloses most of its perimeter. In which nal are possible.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims

2 045 493 Λ

1 21 2

running film produces still images that are transmitted via a

Claims: ground glass or another viewing facility

can be viewed.

! .Device for viewing continuous A polygon always provides perfect standing images with any, especially small, volume, but if the film is at a lower speed running, developed image films run at slower speeds for the purpose of testing, marked by this, speeds of net that one of the running film can be understood below about 25 frames per second, gene, synchronously with this rotating drum, a very strong flicker is noticed at least one window is provided that io noticeably, which after a short time becomes a strong one outside the drum leads to a fatigue of the viewer's eyes that surrounds this, so that Lighting device is provided, and that again no reliable test in the long run inside the drum one is possible with a monitor.

connected television camera is arranged in the strong flicker when using a poly orientation turning or pivoting on the window is caused by the fact that, as with the is cash. normal projection with a rotating aperture, the ratio

2. Apparatus according to claim 1, characterized in that the idle time to the transport time is a fixed value, indicates that the window in the film running direction, which is one and a half times as long as an image step when the film is moving slowly, is expressed in such a way that the exposure pauses long and the television camera at an angle so that it can be perceived by the eye,
can be readjusted by half a frame step. To check the film is to be run discontinuously. as is the case with projectors and cameras

3. Apparatus according to claim 1 or 2, since my is common, is characterized especially in freshly developed by that the drum four film undesirable, but in particular be; Negative film window has that a coupling device 25 men and reverse originals, because it is provided for discontinuous, with which the television camera in each case chem film transport, ie advancing the film \ which is held in alignment with one of the windows, the risk of film damage is noticeably higher. is, and a feedback device, with which, however, an intermittent because after rotating a window by 90 °, the film movement to solve the problem would not help to solve the problem and the television camera would decrease by about 30, thin the flicker ref- 90 that occurs with polygons ° is swiveled back. This would also be fect if the film was transported step-by-step

appear.

The invention is therefore based on the object of providing a device of the type mentioned at the beginning 35 to be trained so that without annoying or tiring flickering of the image to be viewed Checking a slowly transported film is possible.

The invention relates to a device for loading To achieve this object, the invention goes

strive from continuously with any, in particular from the knowledge that it is used to check images smaller, speed running, developing films is not necessary to increase every single film frame th picture films for the purpose of examination. consider, but that it is sufficient in any case,

Subsequent to film development, the and for the detection of gradually occurring incorrectly developed films must be checked. That happens in learning is even better, at certain intervals from one another Usually in such a way that the film at the output 45 other film frames to be viewed. Ausgeder Developing machine over a luminous area based on this knowledge becomes that of the invention is performed, for example via a problem underlying the reverse, achieved in that a side-lit screen, and the current film is entwined with the current film, synchronously with the observed will. This consideration of running sem revolving drum with at least one Fen film strip places very high demands on the 50 ster that one outside of the drum is provided Viewer, because the film images are known to be pre-pretty for this surrounding lighting device small, and looking at a running is seen, and that inside the drum one with Image requires the viewer's eye to be arranged with a television camera connected to a monitor Film image is running. In the long run, both of these are not net, which is in alignment with the window or possible, so that the viewer is ultimately not 53 pivotable.

more discrete film images considered, but only with such a device, which is in each case

the overall impression of the running strip in front of the window in the drum. In this way, only jump images are recorded with the television camera and can gross errors that occur frequently are recognized, then suddenly viewed on the monitor; if the If the observer notices any small errors that occur, 60 once the drum has rotated, this results in a no more, and gradually occurring errors become a short dark pause until the next image appears, not noticed in any case, regardless of whether it is this dark pause but in relation to Beklein or are tall. period so small that it cannot be seen by the observer

A better way to get noticed is continually ongoing.

Viewing films consists of using 65 When the film is running continuously, it is possible to of a polygon, as it is especially in so-called that the film image does not precisely match the window over film viewers used for amateur purposes. agrees, as long as no sprocket or another Through the polygon, a continuously form-fitting device for a flawless ju-