DE3109397A1 - Device for achieving a soft edge of 0-100 % light in a slide projector of arbitrary design - Google Patents

Device for achieving a soft edge of 0-100 % light in a slide projector of arbitrary design

Info

Publication number
DE3109397A1
DE3109397A1 DE19813109397 DE3109397A DE3109397A1 DE 3109397 A1 DE3109397 A1 DE 3109397A1 DE 19813109397 DE19813109397 DE 19813109397 DE 3109397 A DE3109397 A DE 3109397A DE 3109397 A1 DE3109397 A1 DE 3109397A1
Authority
DE
Germany
Prior art keywords
light
slide
achieving
holder
soft edge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
DE19813109397
Other languages
German (de)
Other versions
DE3109397C2 (en
Inventor
Fritz-Josef 5210 Troisdorf Sacher
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SACHER FRITZ JOSEF
Original Assignee
SACHER FRITZ JOSEF
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SACHER FRITZ JOSEF filed Critical SACHER FRITZ JOSEF
Priority to DE19813109397 priority Critical patent/DE3109397C2/en
Publication of DE3109397A1 publication Critical patent/DE3109397A1/en
Application granted granted Critical
Publication of DE3109397C2 publication Critical patent/DE3109397C2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B37/00—Panoramic or wide-screen photography; Photographing extended surfaces, e.g. for surveying; Photographing internal surfaces, e.g. of pipe
    • G03B37/04—Panoramic or wide-screen photography; Photographing extended surfaces, e.g. for surveying; Photographing internal surfaces, e.g. of pipe with cameras or projectors providing touching or overlapping fields of view
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/13—Projectors for producing special effects at the edges of picture, e.g. blurring

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)
  • Transforming Electric Information Into Light Information (AREA)

Abstract

Device for achieving a soft edge of 0-100 % light in a slide projector of arbitrary design. In order in the case of multivision to achieve, vertically as well as horizontally, line-free projection with soft transitions, a mechanical filter consisting of a holder and grey mask is inserted in front of the condenser system and behind the slide. The refraction of light at this point produces a soft edge of 0-100 % light. For the purpose of adjusting the grey mask in the holder, a fitted guide is plugged into the slide shaft and a square fitted bolt is pushed through from the lens side and the grey mask is adjusted on the holder.

Description

·: :": . :":"*-" · '."'.' .· [nachgereicht I ·:: ":.:": "* -" · '. "'. ' . · [Submitted later I

Vorrichtung1 zur Erreichung eines
Grauverlaufs (Soft-Edge) von O -100$
Licht in einem Diaprojektor beliebiger
Bauart.Device 1 for achieving a
Gray gradient (soft edge) from O -100 $
Any light in a slide projector
Design type.

Die Erfindung betrifft einen Einschub
im Kondensorsystem eines Diaprojektors
beliebiger Bauart, mit der Möglichkeit,
projezierte Felder senkrecht wie
waagerecht kantenlos ineinander übergehend auf eine Projektionsfläche zu
projezieren. Der vorgegebene Einschub soll
ermöglichen, daß ein Dia, welches im
Diaschacht steht, mit einem Grauverlauf
von 0 - 100$ Licht projeziert Wird, und
damit eine Großflächenprojektion mit | mehreren Diaprojektoren (= Projektionsflache, ohne Stege und erkennbare Flächen jThe invention relates to an insert
in the condenser system of a slide projector
of any design, with the possibility of
projected fields perpendicular like
horizontally without edges merging into one another towards a projection surface
project. The specified slot should
enable a slide that is in
Slide slot is up, with a gray gradient
from 0 - 100 $ light is projected, and
thus a large area projection with | several slide projectors (= projection surface, without bars and recognizable surfaces j

projeziert werden kann. Ican be projected. I.

Es ist bekannt, Grauverläufe (Soft-Edge) j in einem Register-Rähmchen als Film-Maske j (Hersteller: Firma Jedam, Stuttgart; · Firma Krings,Hamburg; TC-Studios) einlegen : zu können und damit nebeneinander steglos
Splits zu projezieren. Bisher ist es
nicht möglich, mit Film-Grau-Masken
übereinander zu projezieren, weil ein
fotografisch hergestelltes Verlaafdia \ (Soft-Edge) immer ein Viertel der [It is known to be able to insert gray gradients (soft edge) j in a register frame as a film mask j (manufacturer: Jedam, Stuttgart; Krings, Hamburg; TC Studios): and thus seamlessly next to each other
Project splits. So far it is
not possible with film gray masks
project on top of each other because one
photographically produced Verlaafdia \ (Soft-Edge) always a quarter of the [

Diabreite ausmachen muß und die Gleich- ; mäßigkeit der fotografisch hergestellten \ Verläufe nicht gewährleistet ist. jDiabreite must make up and the same; there is no guarantee legality of the photographically produced \ profiles. j

Der Erfindung liegt die Aufgabe zugrunde, j auf die Erstellung von fofografischen
Verlaufdias zu verzichten und es zu
ermöglichen, senkrecht wie waagerecht j Felder steglos und kantenlos ineinander | übergehend auf eine Projektionsflache I zu projezieren. · ' :The invention is based on the object j on the creation of fofografischen
Dispense gradient slides and use it too
enable vertically and horizontally j fields seamlessly and edgeless into one another | to project over onto a projection surface I. · ':

Diese Aufgabe wird erfindungsgemäß
dadurch gelöst, daß in dem Kondensorteil : eines Projektors beliebiger·Bauart
ein Halter zwischen Dia(11 ) und dem i ersten (9) Kondensor geschoben und dort
verankert wird. Dann setzt man in den
(7) Diaschacht eine (2) Paßführung
mit einer mittig liegenden Ausschnittsgröße eines Diarähmchens ein. Burch
die Ausschnittsgröße schiebt man von
der (12) Objektivseite einen (i) Vierkantbolzen, der eine Genauigkeit von
plus minus 0,05 mm haben muß« Nun steht
der (i)Paßbolzen über dem (3) Halter derThis object is achieved according to the invention
solved in that in the condenser part: a projector of any type
a holder is pushed between the slide (11) and the first (9) condenser and there
is anchored. Then you put in the
(7) Slide slot one (2) passport guide
with a central cut-out size of a slide mount. Burch
the cutout size is pushed from
the (12) lens side an (i) square bolt with an accuracy of
plus minus 0.05 mm must have «Now stands
the (i) fitting bolt over the (3) holder of the

-2--2-

Qrarumaske in Richtung (6) Lampe hinaus, so daß man die Graumaske von der Lampenrichtung auf die Paßform des (i) Paßbolzens schieben und festschrauben kann.Qrara mask out towards (6) lamp, so that you can move the gray mask from the lamp direction to the fit of the (i) Slide fitting bolt and screw tight.

Nun zieht man erstens den Paßbolzen und zweitens die Paßführung heraus. Beim Einschalten des Projektors wird nun derNow pull out first the fitting bolt and secondly the fitting guide. At the Turning on the projector will now be the

(io) Grauverlauf sichtbar.(io) gray gradient visible.

Durch Einbauen verschiedener Masken ist ein Grauverlauf an jeder beliebigen Kante eines Dias zu erreichen, was bedeutet, daß bei einer Großflächenprojektion z.B. 9 Felder in 3x3 aufgeteilt an allen inneren Kanten Soft-Edge möglich ist und alle h äußeren Kanten der Projektionsfläche scharfkantig bleiben.By installing different masks, a gray gradient can be achieved on any edge of a slide, which means that with a large-area projection, for example, 9 fields in 3x3 divided into soft-edge are possible on all inner edges and all h outer edges of the projection surface remain sharp.

Die Herstellung und Anwendung der fotografisch hergestellten Graumasken fällt weg. Der Arbeitsaufwand durch Einlegen dieser Graumasken in jedes einzelne Diarähmchen fällt weg. Die Lichtqualität des zu projezierenden Dias wird nicht mehr durch Vorlegen einer Filmschicht beeinträchtigt.The manufacture and use of the photographically produced gray masks falls away. The amount of work involved in putting these gray masks into each individual slide mounts are omitted. The light quality of the slide to be projected is no longer affected by placing a layer of film.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im Folgenden beschrieben:An embodiment of the invention is shown in the drawing and is described below:

Figur 1:Figure 1:

Die Darstellung einer Vorrichtung zur Erreichung eines Grauverlaufs von O - 1ΟΟ9έ Licht durch eine Graumaske in einem Diaprojektor beliebiger Bauart«.The representation of a device for achieving a gray gradient of O - 1ΟΟ9έ light through a gray mask in a slide projector of any type «.

mit 6 = Lampewith 6 = lamp

5 = erster Kondensor5 = first condenser

8 = Hitzefilter8 = heat filter

9 = zweiter Kondensor k = Graumaske9 = second condenser k = gray mask

3 = Graumaskenhalter3 = gray mask holder

10 = Grauverlauf 0 - 100$ Licht"10 = gray gradient 0 - 100 $ light "

11 = Dia11 = slide

12 = Objektiv
Figur 2:12 = lens
Figure 2:

Die Einbausituation einer Graumaske mit Halter und Vierkantpaßbolzen mit 1 = PaßbolzenThe installation situation of a gray mask with holder and square dowel bolt with 1 = fitting bolt

2 = Paßführung2 = passport guide

3 = Halter3 = holder

k = Graumaske k = gray mask

5 - erster Kondensor·. · 5 - first condenser ·. ·

6 = Lampe6 = lamp

Claims (2)

NACHGEREtCHT j ·· PatentansprücheSUBSEQUENTLY J ·· Patent claims 1. Vorrichtung zur Erreichung eines Grauverlaufs (Soft-Edge) von O - 100$ Licht in einem Diaprojektor beliebiger Bauart, mit der Möglichkeit, projezierte Felder senkrecht wie waagerecht kantenlos ineinander übergehend zu projezieren, dadurch gekennzeichnet, daß ein (i) Vierkantbolzen durch eine (2) Paßführung im Diaschacht geführt wird und eine (h) Graumaske im Schlupf auf das Paßende des (5) Vierkantbolzens aufgelegt und im (3) Halter verschraubt wird.1. Device for achieving a gray gradient (soft edge) of O - 100 $ light in a slide projector of any design, with the possibility of projecting fields vertically and horizontally without edges merging into one another, characterized in that a (i) square bolt through a (2) Passport guide is guided in the slide slot and a (h) gray mask is slipped onto the fitting end of the (5) square bolt and screwed into the (3) holder. 2. Vorrichtung zur Erreichung eines Grauverlaufs (Soft-Edge) von 0 -100$ Licht in einem Diaprojektor beliebiger Bauart nach Anspruch 1, dadurch gekennzeichnet, daß durch den Einbau2. Device for achieving a gray gradient (soft edge) of $ 0-100 Light in a slide projector of any design according to claim 1, characterized in that that by installing --—■-■■ ' ""■' V7 ·'" verschiedener Masken, ein Grauverlauf an '■ rl; '"-Φ.Γ,Ιί'*' jeder beliebigen Kante eines Dias--— ■ - ■■ '""■' V7 · '"different masks, a gray gradient on' ■ r l; '" -Φ.Γ, Ιί' * 'any edge of a slide V erstellt werden kann. Das bedeutet, daß beiV can be created. That means that at einer Großflächenprojektion immer alle k äußeren Kanten der Projektionsfläche scharfkantig bleiben.In a large-area projection, all k outer edges of the projection surface always remain sharp-edged.
DE19813109397 1981-03-12 1981-03-12 Slide projector for seamless multivisions Expired DE3109397C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19813109397 DE3109397C2 (en) 1981-03-12 1981-03-12 Slide projector for seamless multivisions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19813109397 DE3109397C2 (en) 1981-03-12 1981-03-12 Slide projector for seamless multivisions

Publications (2)

Publication Number Publication Date
DE3109397A1 true DE3109397A1 (en) 1983-07-14
DE3109397C2 DE3109397C2 (en) 1986-04-24

Family

ID=6126992

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19813109397 Expired DE3109397C2 (en) 1981-03-12 1981-03-12 Slide projector for seamless multivisions

Country Status (1)

Country Link
DE (1) DE3109397C2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2254931A (en) * 1991-04-02 1992-10-21 Howard David Jones A masking frame for use with screens used for cinematic projection
DE19510691A1 (en) * 1995-03-14 1996-09-19 Joachim Maass Brightness shutter for image projectors

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE933664C (en) * 1952-06-20 1955-09-29 Vitarama Corp Device for edge adjustment and avoiding the perceptibility of the contact zones of the individual images of a mosaic image when projecting a film by means of several projectors on a screen using masks

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE933664C (en) * 1952-06-20 1955-09-29 Vitarama Corp Device for edge adjustment and avoiding the perceptibility of the contact zones of the individual images of a mosaic image when projecting a film by means of several projectors on a screen using masks

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2254931A (en) * 1991-04-02 1992-10-21 Howard David Jones A masking frame for use with screens used for cinematic projection
DE19510691A1 (en) * 1995-03-14 1996-09-19 Joachim Maass Brightness shutter for image projectors

Also Published As

Publication number Publication date
DE3109397C2 (en) 1986-04-24

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D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee