FR2581771A2 - Apparatus for projecting and back-projecting slides with lap-dissolve (cross-fade) effect - Google Patents

Apparatus for projecting and back-projecting slides with lap-dissolve (cross-fade) effect Download PDF

Info

Publication number
FR2581771A2
FR2581771A2 FR8507252A FR8507252A FR2581771A2 FR 2581771 A2 FR2581771 A2 FR 2581771A2 FR 8507252 A FR8507252 A FR 8507252A FR 8507252 A FR8507252 A FR 8507252A FR 2581771 A2 FR2581771 A2 FR 2581771A2
Authority
FR
France
Prior art keywords
projection
screen
slides
effect
projecting
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.)
Pending
Application number
FR8507252A
Other languages
French (fr)
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 FR8507252A priority Critical patent/FR2581771A2/en
Publication of FR2581771A2 publication Critical patent/FR2581771A2/en
Pending 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
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/10—Projectors with built-in or built-on screen
    • 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
    • G03B23/18—Devices for changing pictures in viewing apparatus or projectors with fade-in and fade-out effects

Landscapes

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

Abstract

Apparatus for projecting and back-projecting slides with lap-dissolve (cross-fade) effect, using a single slide-magazine. In a first operating mode, the apparatus, which employs two light sources 1, 2 and a moving plane mirror 7, enables the slides to be projected through a first objective towards an external screen with lap-dissolve (cross-fade) effect. In a second operating mode, the apparatus enables the slides to be back-projected, still with lap-dissolve (cross-fade) effect, onto a built-in ground-glass screen and through a second objective 9. In a third, hybrid, operating mode, the slides are projected as in the first mode towards the external screen, whereas the built-in screen enables the slide following that projected to be presented. Application to audio-visual techniques.

Description

APPAREIL DE PROJECTION ET DE RETROPROJECTION DE DIAPOSITIVES
AVEC EFFET DE FONDU ENCHAINE. APPARATUS FOR PROJECTION AND BACK PROJECTION OF SLIDES
WITH STRING FADE EFFECT.

Le brevet principal concerne un projecteur de diapositives avec effet de fondu enchaîné, sans effet de "trou noir" entre chaque vue, l'alimentation s'effectuant à partir d'un panier unique et la projection s'opérant à travers un objectif également unique.The main patent concerns a slide projector with a crossfade effect, without the effect of a "black hole" between each view, the feeding being carried out from a single basket and the projection taking place through an equally unique objective. .

Suivant l'invention objet du brevet principal, deux sources de lumière éclairent chacune une fenêtre de projection, ces fenêtres de projection étant sensiblement perpendiculaires entre elles et la première située sur l'axe optique de l'objectif de projection, tandis que la seconde est située sur l'axe d'un objectif auxiliaire qui forme sur un dépoli faisant office de visionneuse, I'image de la diapositive suivante.According to the invention which is the subject of the main patent, two light sources each illuminate a projection window, these projection windows being substantially perpendicular to each other and the first located on the optical axis of the projection objective, while the second is located on the axis of an auxiliary objective which forms on a frosted image serving as a viewer, the image of the next slide.

Ce résultat est obtenu grâce à un miroir plan mobile, dont le déplacement permet la projection de l'une ou de l'autre diapositive situées dans les fenêtres de projection, avec effet de fondu enchainé, I'autre face de ce miroir permettant le fonctionnement de la visionneuse.This result is obtained thanks to a movable plane mirror, the displacement of which allows the projection of one or the other slide located in the projection windows, with fade-in effect, the other face of this mirror allowing the operation of the viewer.

Cette visionneuse joue un rôle auxiliaire, le but étant de visionner la diapositive qui va suivre et les images s'y succèdent sans effet de fondu en chainé. This viewer plays an auxiliary role, the aim being to view the next slide and the images follow one after the other without fading effect in the chain.

Le but de la présente addition est d'accrohtre considérablement la portée de l'invention objet du brevet principal en introduisant d'autres modes d'utilisation et de limiter les contraintes qui s'y rapportent. The purpose of this addition is to considerably increase the scope of the invention which is the subject of the main patent by introducing other modes of use and to limit the constraints which relate to it.

En effet, une projection de diapositive nécessite de disposer d'un écran mural ou sur pied et de faire l'obscurité dans la salle, ce qui représente des contraintes peu compatibles avec une mise en oeuvre rapide et pratique.Indeed, a slide projection requires having a wall or standing screen and making it dark in the room, which represents constraints that are hardly compatible with rapid and practical implementation.

L'invention se propose d'obvier à ces inconvénients grâce à l'incorporation dans l'appareil d'un écran de rétroprojection de dimensions suffisantes pour assurer une confortable vision des diapositives, en plein jour, pour quelques personnes, sans autres préparatifs que l'ouverture du dépoli de l'appareil, et ceci en conservant l'avantage essentiel que constitue l'absence de "trou noir" entre les vues successives.The invention proposes to overcome these drawbacks by incorporating into the apparatus a rear projection screen of sufficient dimensions to ensure comfortable viewing of the slides, in broad daylight, for a few people, without any other preparations than the opening of the frosted device, and this retaining the essential advantage of the absence of "black hole" between successive views.

Il existe dans le commerce des projecteurs de diapositives classiques qui se montent dans une mallette comportant un écran dépoli et le plus souvent un miroir de renvoi permettant d'obtenir l'image dans le bon sens, et plus récemment, un projecteur a été introduit avec miroir de renvoi et écran incorporé.There are commercially available conventional slide projectors which are mounted in a case comprising a frosted screen and most often a deflection mirror making it possible to obtain the image in the right direction, and more recently, a projector has been introduced with deflection mirror and incorporated screen.

La présente invention est nouvelle en ce sens que les voies optiques de projection et de rétroprojection sont différentes avec pour chacune un objectif parfaitement adapté à sa fonction, avec évidemment le principe de l'enchainement sans "trou noir" aussi bien en projection qu'en rétroprojection.The present invention is new in the sense that the optical projection and rear projection paths are different, each with an objective perfectly suited to its function, with obviously the principle of the sequence without "black hole" in projection as well as rear projection.

L'invention sera mieux comprise en considérant la figure 1 qui représente l'appareil en vue de dessus et reprend les éléments décrits dans le brevet principal avec les sources lumineuses 1 et 2 éclairant les fenêtres de projection 3 et 4 sensiblement perpendiculaires entre elles et adjacentes, la fenêtre 4 étant située sur l'axe de l'objectif de rétroprojection 9 formant une image sur un écran transparent dépoli incorporé 10.The invention will be better understood by considering FIG. 1 which represents the apparatus in top view and repeats the elements described in the main patent with the light sources 1 and 2 lighting the projection windows 3 and 4 substantially perpendicular to each other and adjacent , the window 4 being located on the axis of the rear projection objective 9 forming an image on a built-in frosted transparent screen 10.

C'est au niveau du miroir mobile plan 7, qui se déplace selon la bissectrice de l'angle des deux fenêtres, qu'intervient un mode de fonctionnement supplémentaire obtenu en inversant les positions de ce miroir de telle sorte que l'objectif de rétroprojection joue le rôle de l'objectif principal et que l'effet de fondu enchainé intéresse cette fois la rétroprojection effectuée sur l'écran dépoli incorporé.It is at the level of the movable plane mirror 7, which moves along the bisector of the angle of the two windows, that an additional operating mode is obtained, obtained by reversing the positions of this mirror so that the rear projection objective plays the role of the main objective and that the crossfade effect interests this time the rear projection carried out on the incorporated frosted screen.

La nouveauté ne réside donc pas dans la disposition des éléments mais dans
les mouvements qui animent les deux porte-vues et le miroir plan mobile.The novelty therefore does not lie in the arrangement of the elements but in
the movements that animate the two display cases and the movable plane mirror.

Les figures 2a, 2b et 2c montrent les trois phases de fonctionnement telles que prévues dans le brevet principal, tandis que les figures 2d, 2e et 2f correspondent au nouveau mode de fonctionnement.Figures 2a, 2b and 2c show the three operating phases as provided in the main patent, while Figures 2d, 2e and 2f correspond to the new mode of operation.

En 2a, la vue 2 est projetée sur l'écran extérieur, le miroir 3 est escamoté, la vue 1 est en phase de chargement et l'écran 4 n'est pas éclairé.In 2a, view 2 is projected onto the external screen, the mirror 3 is retracted, view 1 is in the loading phase and the screen 4 is not lit.

En 2b, les deux vues sont en position de projection et la vue 1, à venir, apparait sur l'écran 4.In 2b, the two views are in the projection position and view 1, to come, appears on the screen 4.

Le miroir 3, en se translatant, permet la projection de la vue 1 sur l'écran extérieur avec fondu enchainé de 2 vers 1.The mirror 3, by translating, allows the projection of view 1 on the external screen with crossfade from 2 to 1.

En 2c, la vue 1 est projetée sur l'écran extérieur et le porte-vues 2 est en position de chargement.In 2c, view 1 is projected onto the exterior screen and the view carrier 2 is in the loading position.

Pour le nouveau mode de fonctionnement, et sur la figure 2d qui correspond à la figure 2a en ce qui concerne la position des porte-vues, le miroir 3 est actif et la vue 2 est projetée sur l'écran incorporé.For the new mode of operation, and in FIG. 2d which corresponds to FIG. 2a as regards the position of the viewing frames, the mirror 3 is active and view 2 is projected on the incorporated screen.

Sur la figure 2e, les deux vues sont en position de projection et le déplacement du miroir 3 provoque le fondu enchainé de la vue 2 vers la vue 1 sur l'écran incorporé.In FIG. 2e, the two views are in the projection position and the movement of the mirror 3 causes the crossfade from view 2 to view 1 on the incorporated screen.

En 2f, le miroir 3 est retiré et la vue 1 projetée sur l'écran incorporé, tandis que le porte-vues 2 peut pivoter pour permettre le chargement de la vue suivante et le processus continue sans fin, les vues s'enchainent sur l'écran dépoli.In 2f, the mirror 3 is removed and the view 1 projected on the incorporated screen, while the view holder 2 can pivot to allow the loading of the next view and the process continues without end, the views are linked on the frosted screen.

Dans ce nouveau mode de fonctionnement, les mouvements du miroir plan sont donc rigoureusement inversés par rapport au premier mode de fonctionnement.In this new operating mode, the movements of the plane mirror are therefore rigorously reversed with respect to the first operating mode.

Dans un mode de réalisation préféré de l'inventeur, L'appareil se présente sous la forme représentée figure 3, forme d'utilisation particulièrement commode et facilement transportable. In a preferred embodiment of the inventor, the device is in the form shown in Figure 3, a form of use particularly convenient and easily transportable.

La partie supérieure de l'appareil comporte un écran dépoli pivotant, formant couvercle et tenu en position d'utilisation par un crantage. C'est précisément dans cette position d'utilisation qu'il est représenté en trait continu, la position repliée étant tracée en pointillé.The upper part of the device has a pivoting frosted screen, forming a cover and held in the use position by a notch. It is precisely in this position of use that it is shown in solid lines, the folded position being drawn in dotted lines.

Toujours sur la partie supérieure se trouve le panier circulaire 32 connu sous le nom de "Carousel" et qui alimente les deux porte-vues.Also on the upper part is the circular basket 32 known as the "Carousel" and which feeds the two display holders.

Etant donné le plan de coupe, seule est visible la diapositive située sur l'axe de l'objectif de rét roprojection 34, I'autre diapositive se retrouve dans le marne plan optique par le jeu du miroir plan mobile 35 lorsque celui-ci est avancé en position de travail.Given the cutting plane, only the slide located on the axis of the rear projection objective 34 is visible, the other slide is found in the optical plane marl by the play of the movable plane mirror 35 when the latter is advanced in working position.

Un premier miroir plan fixe 36 et un deuxième miroir plan fixe 37 renvoient le faisceau lumineux sous l'angle convenable pour former l'image dans le plan de l'écran dépoli 31.A first fixed plane mirror 36 and a second fixed plane mirror 37 return the light beam at the appropriate angle to form the image in the plane of the frosted screen 31.

La disposition des organes non représentés sur cette figure est identique à celle montrée sur la figure 1.The arrangement of the bodies not shown in this figure is identical to that shown in Figure 1.

L'appareil représenté sur la figure 3 présente de nombreux modes d'utilisa tion
Pour le transport, le panier circulaire trouve place sous l'écran dépoli fermé, tenu par une fixation centrale prévue à cet effet.The device shown in Figure 3 has many modes of use
For transport, the circular basket is placed under the closed frosted screen, held by a central fixing provided for this purpose.

Pour le tri des diapositives et leur rangement dans le panier, ce dernier est monté sur l'appareil, le dépoli-couvercle refermé jouant alors le rôle de table lumineuse en utilisant les moyens d'éclairement de la source lumineuse 2 de la figure 1. Dès leur insertion dans le panier, les diapositives peuvent être projetées pour contrôle, I'autre source lumineuse et l'objectif de projection restant disponibles. For sorting the slides and storing them in the basket, the latter is mounted on the apparatus, the frosted-lid closed then acting as a light table by using the means for illuminating the light source 2 in FIG. 1. As soon as they are inserted in the basket, the slides can be projected for control, the other light source and the projection lens remaining available.

Pour la projection normale sur écran extérieur et en fondu enchaî- né, l'écran dépoli peut à volonté rester fermé ou s'ouvrir pour obtenir l'image de la diapositive suivante, système particulièrement utile aux conférenciers ou simplement pour vérifier le sens de cette diapositive avant projection devant les spectateurs.  For normal projection on an external screen and in crossfade, the frosted screen can remain closed or open at will to obtain the image of the next slide, a system particularly useful for speakers or simply to check the direction of this slide before projection in front of the spectators.

Pour la rétroprojection sur l'écran incorporé, celui-ci est ouvert et l'objectif de projection inutilisé. For rear projection on the built-in screen, it is open and the projection lens unused.

La réalisation d'un appareil conforme à la présente invention relève des techniques habituelles et est à la portée de l'homme de l'art qui pourra y apporter de nombreuses variantes ou enrechissements sans sortir du cadre de cette invention.The production of an apparatus in accordance with the present invention is part of the usual techniques and is within the reach of those skilled in the art who will be able to provide numerous variations or enhancements without departing from the scope of this invention.

Ceci est vrai notamment pour l'obtention des divers mouvements mécaniques nécessaires, pour la réalisation des moyens d'éclairement et pour les divers accessoires qui peuvent être ajoutés.This is true in particular for obtaining the various mechanical movements necessary, for producing the lighting means and for the various accessories which can be added.

Parmi ceux-ci, on peut citer le magnétophone à cassette qui trouverait place dans l'appareil et servirait à sonoriser et à commander le déroulement du programme.Among these, we can cite the cassette recorder which would find a place in the device and would be used to sound and to control the progress of the program.

Le fait que l'objectif de rétroprojection soit séparé de celui de projection permet d'en adapter parfaitement la distance focale, celui de projection pouvant être quelconque et même à focale variable The fact that the rear projection lens is separate from that of projection makes it possible to perfectly adapt the focal distance, that of projection can be arbitrary and even at variable focal length

Claims (4)

Revendications de brevetPatent claims 1. Projecteur selon la revendication 1 du brevet principal et rétroprojecteur sur écran incorporé, avec effet de fondu enchaîné, comportant deux fenêtres de projection adjacentes (3 et 4) et sensiblement perpendiculaires entre elles déterminant ainsi un volume dans lequel pénètre un miroir plan mobile (7) orienté selon la bissectrice de l'angle desdites fenêtres de projection, caractérisé en ce que la première de ces fenêtres de projection (3) est située sur l'axe optique de l'objectif de projection (8) tandis que la seconde (4) est située sur l'axe optique d'un objectif de rétroprojection (9), le mouvement du miroir plan mobile double face (7) permettant la projection alternée des diapositives situées dans les fenêtres de projection avec effet de fondu enchaîné soit dans un premier mode d'utilisation à travers l'objec- tif de projection (8) sur un écran extérieur, soit dans un deuxième mode d'utilisation à travers l'objectif de rétroprojection (9) vers un écran dépoli incorporé (îo).  1. Projector according to claim 1 of the main patent and overhead projector on incorporated screen, with crossfade effect, comprising two adjacent projection windows (3 and 4) and substantially perpendicular to each other thus determining a volume into which a movable plane mirror ( 7) oriented along the bisector of the angle of said projection windows, characterized in that the first of these projection windows (3) is located on the optical axis of the projection objective (8) while the second ( 4) is located on the optical axis of a rear projection objective (9), the movement of the movable double-sided plane mirror (7) allowing the alternating projection of the slides located in the projection windows with fading effect either in a first mode of use through the projection objective (8) on an external screen, or in a second mode of use through the rear projection lens (9) to an incorporated frosted screen (îo). 2. Projecteur et rétroprojecteur conforme à la revendication I, caractérisé en ce que dans le premier mode d'utilisation avec projection sur écran extérieur, L'objectif de rétroprojection (9) et l'écran dépoli incorporé (10) qui lui correspond, permettent la présentation de la diapositive qui doit suivre celle présentée sur l'écran extérieur. 2. Projector and overhead projector according to claim I, characterized in that in the first mode of use with projection on an external screen, the rear projection objective (9) and the incorporated frosted screen (10) which corresponds to it, allow the presentation of the slide which must follow that presented on the external screen. 3. Projecteur et rétroprojecteur conforme à la revendication 1, caractérisé par l'introduction sur le trajet du faisceau lumineux issu de l'objectif de rétroprojection (34) d'au moins deux miroirs plans (36 et 37) permettant d'obtenir l'image sur un écran dépoli incliné (31), pouvant pivoter pour donner en position fermée un appareil parallèlépipédique facilement transportable. 3. Projector and overhead projector according to claim 1, characterized by the introduction into the path of the light beam from the rear projection lens (34) of at least two plane mirrors (36 and 37) to obtain the image on an inclined frosted screen (31), which can pivot to give in the closed position an easily transportable parallelepiped device. 4. Projecteur et rétroprojecteur conforme aux revendications 1 et 3, caractérisé en ce que l'écran dépoli (31'), en position fermée, constitue une table lumineuse éclairée par le faisceau lumineux issu de l'objectif de rétroprojection pour permettre le tri et le classement des diapositives.  4. Projector and overhead projector according to claims 1 and 3, characterized in that the frosted screen (31 '), in the closed position, constitutes a light table illuminated by the light beam coming from the overhead projection lens to allow sorting and the classification of the slides.
FR8507252A 1985-05-07 1985-05-07 Apparatus for projecting and back-projecting slides with lap-dissolve (cross-fade) effect Pending FR2581771A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8507252A FR2581771A2 (en) 1985-05-07 1985-05-07 Apparatus for projecting and back-projecting slides with lap-dissolve (cross-fade) effect

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8507252A FR2581771A2 (en) 1985-05-07 1985-05-07 Apparatus for projecting and back-projecting slides with lap-dissolve (cross-fade) effect

Publications (1)

Publication Number Publication Date
FR2581771A2 true FR2581771A2 (en) 1986-11-14

Family

ID=9319233

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8507252A Pending FR2581771A2 (en) 1985-05-07 1985-05-07 Apparatus for projecting and back-projecting slides with lap-dissolve (cross-fade) effect

Country Status (1)

Country Link
FR (1) FR2581771A2 (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0431718A2 (en) * 1989-12-07 1991-06-12 Gerd Schulte Slide projector
US5085505A (en) * 1989-12-28 1992-02-04 Nipox Kabushiki Kaisha Overhead projector
WO2004023234A2 (en) * 2002-09-05 2004-03-18 Lg Electronics Inc. Recording medium having data structure for managing reproduction of slideshows recorded thereon and recording and reproducing methods and apparatuses
US7639921B2 (en) 2002-11-20 2009-12-29 Lg Electronics Inc. Recording medium having data structure for managing reproduction of still images recorded thereon and recording and reproducing methods and apparatuses
US7664371B2 (en) 2002-09-06 2010-02-16 Lg Electronics Inc. Recording medium having data structure for managing reproduction of still images recorded thereon and recording and reproducing methods and apparatuses
US7672566B2 (en) 2003-01-20 2010-03-02 Lg Electronics Inc. Recording medium having data structure for managing reproduction of still pictures recorded thereon and recording and reproducing methods and apparatuses
US7734154B2 (en) 2003-02-14 2010-06-08 Lg Electronics Inc. Recording medium having data structure for managing reproduction duration of still pictures recorded thereon and recording and reproducing methods and apparatuses
US7747133B2 (en) 2002-09-07 2010-06-29 Lg Electronics Inc. Recording medium having data structure for managing reproduction of still images from a clip file recorded thereon and recording and reproducing methods and apparatuses
US7801421B2 (en) 2003-01-20 2010-09-21 Lg Electronics Inc. Recording medium having data structure for managing reproduction of still pictures recorded thereon and recording and reproducing methods and apparatuses
US8041179B2 (en) 2003-02-24 2011-10-18 Lg Electronics Inc. Methods and apparatuses for reproducing and recording still picture and audio data and recording medium having data structure for managing reproduction of still picture and audio data
US8055117B2 (en) 2003-02-15 2011-11-08 Lg Electronics Inc. Recording medium having data structure for managing reproduction duration of still pictures recorded thereon and recording and reproducing methods and apparatuses
US8145033B2 (en) 2003-02-05 2012-03-27 Lg Electronics Inc. Recording medium having data structure for managing reproducton duration of still pictures recorded thereon and recording and reproducing methods and apparatuses

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0431718A3 (en) * 1989-12-07 1992-05-06 Gerd Schulte Slide projector
EP0431718A2 (en) * 1989-12-07 1991-06-12 Gerd Schulte Slide projector
US5085505A (en) * 1989-12-28 1992-02-04 Nipox Kabushiki Kaisha Overhead projector
WO2004023234A2 (en) * 2002-09-05 2004-03-18 Lg Electronics Inc. Recording medium having data structure for managing reproduction of slideshows recorded thereon and recording and reproducing methods and apparatuses
WO2004023234A3 (en) * 2002-09-05 2004-06-24 Lg Electronics Inc Recording medium having data structure for managing reproduction of slideshows recorded thereon and recording and reproducing methods and apparatuses
US8098978B2 (en) 2002-09-05 2012-01-17 Lg Electronics Inc. Recording medium having data structure for managing reproduction of still images recorded thereon and recording and reproducing methods and apparatuses
US7974516B2 (en) 2002-09-05 2011-07-05 Lg Electronics Inc. Recording medium having data structure of playlist marks for managing reproduction of still images recorded thereon and recording and reproducing methods and apparatuses
US7787755B2 (en) 2002-09-05 2010-08-31 Lg Electronics Inc. Recording medium having data structure for managing reproduction of slideshows recorded thereon and recording and reproducing methods and apparatuses
US7664371B2 (en) 2002-09-06 2010-02-16 Lg Electronics Inc. Recording medium having data structure for managing reproduction of still images recorded thereon and recording and reproducing methods and apparatuses
US7747133B2 (en) 2002-09-07 2010-06-29 Lg Electronics Inc. Recording medium having data structure for managing reproduction of still images from a clip file recorded thereon and recording and reproducing methods and apparatuses
US7639921B2 (en) 2002-11-20 2009-12-29 Lg Electronics Inc. Recording medium having data structure for managing reproduction of still images recorded thereon and recording and reproducing methods and apparatuses
US8005346B2 (en) 2002-11-20 2011-08-23 Lg Electronics Inc. Recording medium having data structure for managing reproduction of data recorded thereon and recording and reproducing methods and apparatuses
US7801421B2 (en) 2003-01-20 2010-09-21 Lg Electronics Inc. Recording medium having data structure for managing reproduction of still pictures recorded thereon and recording and reproducing methods and apparatuses
US7684675B2 (en) 2003-01-20 2010-03-23 Lg Electronics, Inc. Recording medium having data structure for managing reproduction of still pictures recorded thereon and recording and reproducing methods and apparatuses
US8050538B2 (en) 2003-01-20 2011-11-01 Lg Electronics Inc. Recording medium having data structure for managing reproduction of still pictures recorded thereon and recording and reproducing methods and apparatuses
US7672566B2 (en) 2003-01-20 2010-03-02 Lg Electronics Inc. Recording medium having data structure for managing reproduction of still pictures recorded thereon and recording and reproducing methods and apparatuses
US8532461B2 (en) 2003-01-20 2013-09-10 Lg Electronics Inc. Recording medium having data structure for managing reproduction of still pictures recorded thereon and recording and reproducing methods and apparatuses
US8649665B2 (en) 2003-01-20 2014-02-11 Lg Electronics, Inc. Recording medium having data structure for managing reproduction of still pictures recorded thereon and recording and reproducing methods and apparatuses
US8676037B2 (en) 2003-01-20 2014-03-18 Lg Electronics, Inc. Recording medium having data structure for managing reproduction of still pictures recorded thereon and recording and reproducing methods and apparatuses
US8145033B2 (en) 2003-02-05 2012-03-27 Lg Electronics Inc. Recording medium having data structure for managing reproducton duration of still pictures recorded thereon and recording and reproducing methods and apparatuses
US7734154B2 (en) 2003-02-14 2010-06-08 Lg Electronics Inc. Recording medium having data structure for managing reproduction duration of still pictures recorded thereon and recording and reproducing methods and apparatuses
US8055117B2 (en) 2003-02-15 2011-11-08 Lg Electronics Inc. Recording medium having data structure for managing reproduction duration of still pictures recorded thereon and recording and reproducing methods and apparatuses
US8041179B2 (en) 2003-02-24 2011-10-18 Lg Electronics Inc. Methods and apparatuses for reproducing and recording still picture and audio data and recording medium having data structure for managing reproduction of still picture and audio data

Similar Documents

Publication Publication Date Title
FR2581771A2 (en) Apparatus for projecting and back-projecting slides with lap-dissolve (cross-fade) effect
KR960002207B1 (en) Portable lcd projector
FR2904435A1 (en) Endoscopic probe for housing e.g. LEDs, has objective comprising distal lens produced from circular lens, and specific parts of circular lens not passed through by light rays transmitted by objective to light-sensitive surface
FR2653567A1 (en) Monocular SLR camera with movable flash unit
FR2832892A1 (en) Special effects television camera having image acquiring system and image parallel telemetry unit each image point providing camera/image subject point distance
FR2752626A1 (en) Stereo camera
FR2722999A1 (en) IMAGE PROJECTOR FORMING TOY
FR2830336A1 (en) OPTICAL OBSERVATION INSTRUMENT WITH PHOTOGRAPHY FUNCTION
FR2468145A1 (en) ELECTRONIC FLASH
FR2649804A1 (en) RETRACTABLE ZOOM-FLASH DEVICE
FR2830338A1 (en) Photographing function included binocular telescope has power supply battery and electric power source circuit board, provided at outer side of telescopic optical system casing
EP0310477A1 (en) Terminal for visual and sound communication fitted with a booster illumination device
EP0224394A1 (en) Projector with a spherical screen, in particular for advertising purposes
EP0001951B1 (en) Projection apparatus permitting the recording of the projected image of an object
EP0159594A1 (en) Lighting apparatus having a high diffusion ability
FR2835928A1 (en) STRUCTURE FOR ASSEMBLING A PAIR OF BINOCULARS WITH PHOTOGRAPHY FUNCTION
EP0036341B1 (en) Optical system for the realization of special effects on films
FR2691814A1 (en) Method and apparatus for printing an image.
FR2543701A1 (en) READER-REPRODUCER, PARTICULARLY FOR MICROFILMS
CA1328364C (en) Device for reading and/or recording an audio signal on an auxiliary track of a motion picture film and lighting head for said device
EP0073205A1 (en) Device allowing the visualization of an image carried by a transparent medium
JP3643728B2 (en) Display device with liquid crystal panel
EP0139600A2 (en) Background projection device for making photographs
FR2515833A1 (en) Single objective transparency projector - has two internal projectors to merge successive views in single objective
FR2481817A1 (en) APPARATUS FOR PHOTOGRAPHIC REPRODUCTION OF ALL OR PART OF ANY DOCUMENT, ESPECIALLY SLIDE