DE4101452A1 - Slide projector with image fading device - has secondary slide support frame mounted above or below main support frame - Google Patents

Slide projector with image fading device - has secondary slide support frame mounted above or below main support frame

Info

Publication number
DE4101452A1
DE4101452A1 DE4101452A DE4101452A DE4101452A1 DE 4101452 A1 DE4101452 A1 DE 4101452A1 DE 4101452 A DE4101452 A DE 4101452A DE 4101452 A DE4101452 A DE 4101452A DE 4101452 A1 DE4101452 A1 DE 4101452A1
Authority
DE
Germany
Prior art keywords
slide
support frame
projector
main
mounted above
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
DE4101452A
Other languages
German (de)
Other versions
DE4101452C2 (en
Inventor
Gerd Schulte
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19914101452 priority Critical patent/DE4101452C2/en
Publication of DE4101452A1 publication Critical patent/DE4101452A1/en
Application granted granted Critical
Publication of DE4101452C2 publication Critical patent/DE4101452C2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G03B23/00—Devices for changing pictures in viewing apparatus or projectors
    • G03B23/14—Carriers operable to move pictures into, and out of, the projection or viewing position and carrying one or two pictures only in a removable manner also other devices not provided with a stock, e.g. chutes
    • 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
    • G03B21/14—Details
    • G03B21/16—Cooling; Preventing overheating

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)

Abstract

A slide projector is designed to enable the image from one slide to be faded into the image of the following slide. This is achieved by mounting a secondary slide support frame above or below the main slide support frame. A device then lowers or raises the slide so that it can be transferred to the main slide support frame. Whilst the slide is in the secondary frame it is heated to bring it to the temperature to which it is subjected when being projected. USE/ADVANTAGE - Image fading system for a slide projector. The pre-heating of the slides prevents any slide, not fitted between glass plates, from buckling whilst being projected

Description

Die Erfindung betrifft einen Diaprojektor nach der Gat­ tung des Oberbegriffes.The invention relates to a slide projector according to the Gat tion of the generic term.

Ein derartiger, insbesondere für die Überblendprojek­ tion konzipierter Projektor ist bereits aus der DE- PS 59 40 771 bekannt. Bei der dort beschriebenen Pro­ jektorkonstruktion befindet sich zwischen dem Magazin und der ersten Haupt-Diabühne auf gleicher Höhe eine spezielle Eingangs-Diabühne, die der Vorbetrachtung und/oder Vorwärmung des jeweiligen Dias vor der eigent­ lichen Projektion dient. Neben der genannten Vorbetrach­ tungsmöglichkeit ergibt sich durch die gezielte Vor­ wärmung an dieser Stelle bereits eine Anpassung der Betriebstemperatur an die folgende Haupt-Projektion, so daß auch bei glaslos gefaßten Dias ein Springen oder "Ploppen" danach nicht mehr erfolgen wird.Such, especially for the cross-fade project designed projector is already from the DE PS 59 40 771 known. In the Pro described there ejector construction is between the magazine and the first main slide stage at the same height special entrance slide stage, the preview and / or preheating the respective slide before the actual projection. In addition to the aforementioned preview possibility arises through the targeted preparation warming at this point already an adjustment of the Operating temperature to the following main projection, so that even with glassless slides jumping or "popping" afterwards will no longer occur.

Da der Transport des jeweiligen Dias aus der Eingangs- Diabühne bei allen weiteren Haupt-Diabühnen über die erste Haupt-Diabühne hinweg in drei Einzelschritten geschieht, ergibt sich hier eine gewisse Verzögerung, die bei diesem Projektor zwischen Steuerimpuls und Haupt-Projektion eintritt. Während diese Zeitverzöge­ rung im allgemeinen zwar mit einkalkuliert werden kann und auch bei einer entsprechenden Programmierung der Steuerbefehle reproduzierbar ist, erscheint eine An­ passung an fremde Programme nur mit Einschränkungen möglich.Since the transport of the respective slide from the input Slide stage for all other main slide stages via the first main slide stage in three individual steps happens, there is a certain delay, which in this projector between control pulse and Main projection occurs. During these time delays tion can generally be factored in and also with a corresponding programming of the Control commands are reproducible, an On appears  Adaptation to other programs only with restrictions possible.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Lösung aufzuzeigen, welche die vorgenannten Nachteile nicht aufweist.The invention is therefore based on the object To show solution, which the aforementioned disadvantages does not have.

Erfindungsgemäß wird die Aufgabe dadurch gelöst, daß über oder unter jeder Haupt-Diabühne jeweils eine Vor- Diabühne angeordnet ist und daß beide durch ein Falle­ schacht/Hebersystem miteinander verbunden sind.According to the invention the object is achieved in that one pre or above each main slide stage Slide stage is arranged and that both by a trap shaft / jack system are interconnected.

Besonders vorteilhaft erscheint vor allem die erste Variante, wo die der Vorbetrachtung bzw. Vorwärmung des Dias dienende jeweilige Vor-Diabühne über der zu­ gehörigen Haupt-Diabühne angeordnet ist. Unmittelbar nach dem Wechselimpuls fällt das Dia dann in Projek­ tionsstellung, auf genau die gleiche Weise, wie bei den weltweit im professionellen Einsatz bewährten Rund­ magazin-Projektoren. Bei dem erfindungsgemäßen Projek­ tor ist das Magazin im einfachsten Fall auf gleicher Höhe angeordnet, wie die Vor-Diabühnen, so daß auch hier zum Transport ein einziger Wechselschieberschritt genügt.The first appears to be particularly advantageous Variant where that of the preview or preheating of the slide serving the respective pre-slide stage above the main slide stage is arranged. Right away after the alternating impulse, the slide then falls into Projek position, in exactly the same way as with the Round proven in professional use worldwide magazine projectors. In the project according to the invention tor is the magazine in the simplest case on the same Arranged in height, like the pre-slide stages, so that too here a single change slide step for transport enough.

Günstig bei dieser Lösungsvariante ist ebenfalls, daß ein Dia durch das jeweilige Hebersystem noch soweit angehoben werden kann, bis es oben durch einen Schlitz entnommen werden kann, daß aber die Projektions-Präzi­ sion des Hauptsystems nicht nachteilig beeinflußt wird. Dank der oben angeordneten Objektive bereitet auch die Vor-Projektion, die in bekannter Weise über einen Um­ lenkspiegel auf eine hinten am Projektorgehäusedeckel angebrachte Mattscheibe erfolgen kann, keine besonde­ ren Probleme. It is also favorable with this solution variant that a slide through the respective lifting system so far Can be lifted up through a slot can be seen that the projection precision sion of the main system is not adversely affected. Thanks to the lenses arranged above, the Pre-projection, which is done in a known manner via an order Steering mirror on one at the back of the projector cabinet cover attached focusing screen, no special problems.  

In jedem Fall von Vorteil ist der klar gegliederte Betriebsablauf, der schon durch eine Einknopfbedienung mit wenigen Raststellungen, von der Mitte ausgehend etwa vorwärts (bzw. rückwärts), Transport, Projektion und Entnahme, erfolgen kann.The clearly structured one is always an advantage Operating sequence, which is already through a one-button operation with a few rest positions, starting from the center such as forward (or backward), transport, projection and removal.

Claims (4)

1. Diaprojektor mit Vorbetrachtung/Vorwärmung, dadurch gekennzeichnet, daß über oder unter jeder Hauptdiabühne jeweils eine Vor-Diabühne angeordnet ist und daß beide durch ein Fallschacht/Hebersystem miteinander verbunden sind.1. Slide projector with preview / preheating, characterized in that a pre-slide stage is arranged above or below each main slide stage and that both are connected to one another by a chute / lifting system. 2. Diaprojektor nach Anspruch 1, dadurch gekennzeich­ net, daß die der Vorbetrachtung und/oder Vorwär­ mung des Dias dienende jeweilige Vor-Diabühne über der zugehörigen Haupt-Diabühne angeordnet ist.2. Slide projector according to claim 1, characterized net that the preview and / or preheat the respective pre-slide stage the associated main slide stage is arranged. 3. Diaprojektor nach Anspruch 2, dadurch gekennzeich­ net, daß das jeweilige Hebersystem für drei Arbeits­ positionen ausgelegt ist: Haupt-Projektion, Vorbe­ trachtung und Entnahme.3. slide projector according to claim 2, characterized net that the respective lifting system for three working positions: main projection, prep forage and sampling. 4. Diaprojektor nach einem der vorhergehenden Ansprü­ che, dadurch gekennzeichnet, daß die Projektor­ steuerung durch eine Einknopfbedienung mit den Raststellungen von der Mitte aus: Vorwärts/Rück­ wärts, Transport und Entnahme erfolgt.4. Slide projector according to one of the preceding claims che, characterized in that the projector control by one button operation with the Rest positions from the center: forward / backward warts, transport and removal takes place.
DE19914101452 1991-01-16 1991-01-16 Multiple slide projector Expired - Fee Related DE4101452C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19914101452 DE4101452C2 (en) 1991-01-16 1991-01-16 Multiple slide projector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19914101452 DE4101452C2 (en) 1991-01-16 1991-01-16 Multiple slide projector

Publications (2)

Publication Number Publication Date
DE4101452A1 true DE4101452A1 (en) 1992-08-13
DE4101452C2 DE4101452C2 (en) 1994-06-09

Family

ID=6423289

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19914101452 Expired - Fee Related DE4101452C2 (en) 1991-01-16 1991-01-16 Multiple slide projector

Country Status (1)

Country Link
DE (1) DE4101452C2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19830356C1 (en) * 1998-07-07 1999-11-11 Siemens Ag Variable resistor balancing and adjuster circuit for AUC circuit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1547286B1 (en) * 1965-12-14 1970-06-04 Fuji Photo Film Co Ltd Method and device for the prior control observation of slides during projection in a still image projector
DE3940771C1 (en) * 1989-12-07 1990-12-13 Gerd 1000 Berlin De Schulte

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1547286B1 (en) * 1965-12-14 1970-06-04 Fuji Photo Film Co Ltd Method and device for the prior control observation of slides during projection in a still image projector
DE3940771C1 (en) * 1989-12-07 1990-12-13 Gerd 1000 Berlin De Schulte

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19830356C1 (en) * 1998-07-07 1999-11-11 Siemens Ag Variable resistor balancing and adjuster circuit for AUC circuit

Also Published As

Publication number Publication date
DE4101452C2 (en) 1994-06-09

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee