WO1982002959A1 - Device allowing the visualization of an image carried by a transparent medium - Google Patents

Device allowing the visualization of an image carried by a transparent medium Download PDF

Info

Publication number
WO1982002959A1
WO1982002959A1 PCT/CH1982/000027 CH8200027W WO8202959A1 WO 1982002959 A1 WO1982002959 A1 WO 1982002959A1 CH 8200027 W CH8200027 W CH 8200027W WO 8202959 A1 WO8202959 A1 WO 8202959A1
Authority
WO
WIPO (PCT)
Prior art keywords
plate
image
face
reflective
device allowing
Prior art date
Application number
PCT/CH1982/000027
Other languages
French (fr)
Inventor
Hugo Coulon
Original Assignee
Hugo Coulon
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 Hugo Coulon filed Critical Hugo Coulon
Publication of WO1982002959A1 publication Critical patent/WO1982002959A1/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0055—Reflecting element, sheet or layer
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/02—Viewing or reading apparatus
    • G02B27/022—Viewing apparatus
    • G02B27/024—Viewing apparatus comprising a light source, e.g. for viewing photographic slides, X-ray transparancies
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086—Positioning aspects
    • G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package

Definitions

  • the present invention relates to a device for observing an image carried by a transparent support and which, therefore, is mainly intended to allow the observation of photographic or radiological negatives or slides, for example.
  • Lighting devices comprising a plate of transparent material lit by the edge. Such devices are intended to make visible, by a contrasting effect, patterns presented by the anterior face of said plate.
  • the object of the present invention is to use a device of the same kind for the observation of photographic negatives or slides.
  • the single figure is a perspective view, with partial section, of a device allowing the observation of images carried by a transparent support.
  • the device shown comprises a plate 1 of artificial glass, known in the trade under the name of PLEXIGLAS (registered trademark), forming a light guide, whose lateral faces such as 2 are perfectly polished, and which is surrounded by a metal frame 3.
  • This frame encloses, along one of its sides, a lighting device constituted by a neon tube 4 and by a parabolic reflector 5.
  • the means ensuring the lighting of the plate 1, by its edge could be different (incandescent lamp, luminescent source or other), and that they could also extend along more than one sides of the plate, or even along all four sides of it.
  • the rear face 6 of the plate is coated with a reflective layer 7 affixed directly on it. This layer 7 could be replaced by a mirror applied against the face 6, provided that the contact is close to the point of actually making an optical contact, for example with intermediate application of Canada balsam.
  • the device further comprises a transparent sheet 8, forming a cover, articulated by means of a piano hinge 9 to the front face 3a of the part of the frame 3 covering the inner edge of the plate 1.
  • This cover 8 can occupy a position folded down, as shown in the drawing, and, by a rotation in the direction of the arrow 10 around the hinge 9, a second position in which its upper edge, designated by 11, slightly rounded, comes to hang on the front face 3a , of the part of the frame 3 covering the upper edge of the plate 1.
  • This part 3a of the frame 3 is chamfered at 12 to receive the edge 11 of the cover 8 while the same chamfer 12 of the front face 3a of the part of the frame 3 covering the lower edge of the plate is intended to receive the transparent film supporting the image to be observed.
  • the cover 8 is raised, applying the image tightly against the front face 13 of the plate 1.
  • the image, view, text or other is then made visible by the lighting to which the plate 1 is subjected.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

The image to be visualized is placed against the front face (13) of a transparent plate (1) of plastic material, forming a light guide, lit through its cross section (2) by a neon tube (4) and a parabolic projector (5). The rear face (6) of the plate (1) being coated with a reflecting material layer (7), the image, a photographic negative or a slide, is lit and thus made visible.

Description

Dispositif permettant l'observation d'une image portée par un support transparent. Device allowing the observation of an image carried by a transparent support.
La présente invention a pour objet un dispositif permettant l'observation d'une image portée par un support transparent et qui, par conséquent, est principalement destiné à permettre l'observation de négatifs photographiques ou radiologiques ou de diapositives, par exemple.The present invention relates to a device for observing an image carried by a transparent support and which, therefore, is mainly intended to allow the observation of photographic or radiological negatives or slides, for example.
On connaît des dispositifs d'éclairage comportant une plaque de matière transparente éclairée par la tranche. De tels dispositifs sont destinés à rendre visibles, par un effet de contraste, des motifs que présente la face antérieure de ladite plaque.Lighting devices are known comprising a plate of transparent material lit by the edge. Such devices are intended to make visible, by a contrasting effect, patterns presented by the anterior face of said plate.
Le but de la présente invention est d'utiliser un dispositif du même genre pour l'observation de négatifs photographiques ou de diapositives.The object of the present invention is to use a device of the same kind for the observation of photographic negatives or slides.
Ce but est atteint grâce aux moyens définis dans la revendication 1. Le dessin représente, à titre d'exemple, une forme d'exécution de l'objet de l'invention.This object is achieved by the means defined in claim 1. The drawing represents, by way of example, an embodiment of the subject of the invention.
La figure unique est une vue en perspective, avec coupe partielle, d'un dispositif permettant l'observation d'images portées par un support transparent.The single figure is a perspective view, with partial section, of a device allowing the observation of images carried by a transparent support.
Le dispositif représenté comprend une plaque 1 de verre artificiel, connu dans le commerce sous le nom de PLEXIGLAS (marque déposée), formant guide de lumière, dont les faces latérales telles que 2 sont parfaitement polies, et qui est entourée d'un cadre métallique 3. Ce cadre enferme, le long d'un de ses côtés, un dispositif d'éclairage constitué par un tube au néon 4 et par un réflecteur parabolique 5.The device shown comprises a plate 1 of artificial glass, known in the trade under the name of PLEXIGLAS (registered trademark), forming a light guide, whose lateral faces such as 2 are perfectly polished, and which is surrounded by a metal frame 3. This frame encloses, along one of its sides, a lighting device constituted by a neon tube 4 and by a parabolic reflector 5.
Il est à remarquer que les moyens assurant l'éclairage de la plaque 1, par sa tranche, pourraient être différents (lampe à incandescence, source luminescente ou autre), et qu'ils pourraient également s'étendre le long de plus d'un des côtés de la plaque, voire le long des quatre côtés de celle-ci. La face postérieure 6 de la plaque est revêtue d'une couche réfléchissante 7 apposée directement sur elle. Cette couche 7 pourrait être remplacée par un miroir appliqué contre la face 6, pour autant que le contact soit étroit au point de réaliser réellement un contact optique, par exemple avec application intermédiaire de baume du Canada.It should be noted that the means ensuring the lighting of the plate 1, by its edge, could be different (incandescent lamp, luminescent source or other), and that they could also extend along more than one sides of the plate, or even along all four sides of it. The rear face 6 of the plate is coated with a reflective layer 7 affixed directly on it. This layer 7 could be replaced by a mirror applied against the face 6, provided that the contact is close to the point of actually making an optical contact, for example with intermediate application of Canada balsam.
Le dispositif comprend en outre une feuille transparente 8, formant couvercle, articulée au moyen d'une charnière-piano 9 à la face antérieure 3a de la partie du cadre 3 recouvrant le bord intérieur de la plaque 1. Ce couvercle 8 peut occuper une position rabattue, comme représenté au dessin, et, par une rotation dans la direction de la flèche 10 autour de la charnière 9, une deuxième position dans laquelle son bord supérieur, désigné par 11, légèrement arrondi, vient s'accrocher à la face antérieure 3a, de la partie du cadre 3 recouvrant le bord supérieur de la plaque 1. Cette partie 3a du cadre 3 est chanfreinée en 12 pour recevoir le bord 11 du couvercle 8 alors que le même chanfrein 12 de la face antérieure 3a de la partie du cadre 3 recouvrant le bord inférieur de la plaque est destiné à recevoir le film transparent supportant l'image à observer. Lorsque l'image est en place dans le chanfrein inférieur 12, le couvercle 8 est relevé, appliquant l'image étroitement contre la face antérieure 13 de la plaque 1.The device further comprises a transparent sheet 8, forming a cover, articulated by means of a piano hinge 9 to the front face 3a of the part of the frame 3 covering the inner edge of the plate 1. This cover 8 can occupy a position folded down, as shown in the drawing, and, by a rotation in the direction of the arrow 10 around the hinge 9, a second position in which its upper edge, designated by 11, slightly rounded, comes to hang on the front face 3a , of the part of the frame 3 covering the upper edge of the plate 1. This part 3a of the frame 3 is chamfered at 12 to receive the edge 11 of the cover 8 while the same chamfer 12 of the front face 3a of the part of the frame 3 covering the lower edge of the plate is intended to receive the transparent film supporting the image to be observed. When the image is in place in the lower chamfer 12, the cover 8 is raised, applying the image tightly against the front face 13 of the plate 1.
L'image, vue, texte ou autre, est alors rendue visible par l'éclairage auquel est soumise la plaque 1. The image, view, text or other, is then made visible by the lighting to which the plate 1 is subjected.

Claims

R E V E N D I C A T I O N S : CLAIMS:
1. Dispositif permettant l'observation d'une image portée par un support transparent, caractérisé par le fait qu'il comporte un guide de lumière formé d'une plaque de matière translucide ou transparente éclairée par sa tranche, dont le fond est réfléchissant, la face antérieure de ladite plaque étant destinée à recevoir l'image à observer.1. Device allowing the observation of an image carried by a transparent support, characterized in that it comprises a light guide formed by a plate of translucent or transparent material illuminated by its edge, the bottom of which is reflective, the front face of said plate being intended to receive the image to be observed.
2. Dispositif suivant la revendication 1, caractérisé par le fait que le fond réfléchissant de ladite plaque est constitué par une couche de matière réfléchissante apposée directement sur la face postérieure de la plaque.2. Device according to claim 1, characterized in that the reflective bottom of said plate is constituted by a layer of reflective material affixed directly on the rear face of the plate.
3. Dispositif suivant la revendication 1, caractérisé par le fait que le fond réfléchissant de ladite plaque est constitué par un miroir appliqué contre la face postérieure de la plaque et qui est en contact optique avec elle.3. Device according to claim 1, characterized in that the reflective bottom of said plate is constituted by a mirror applied against the rear face of the plate and which is in optical contact with it.
4. Dispositif suivant la revendication 1, caractérisé par le fait, qu'il comprend une feuille de matière transparente articulée sur la face antérieure de la plaque et qui est destinée à occuper deux positions, l'une dans laquelle elle découvre ladite face antérieure, ce qui permet la mise en place et l'enlèvement de l' image, et l'autre dans laquelle elle est appliquée contre la face antérieure de la plaque, pressant l'image contre celle-ci. 4. Device according to claim 1, characterized in that it comprises a sheet of transparent material articulated on the front face of the plate and which is intended to occupy two positions, one in which it uncovers said anterior face, which allows the positioning and removal of the image, and the other in which it is applied against the anterior face of the plate, pressing the image against it.
PCT/CH1982/000027 1981-02-27 1982-02-23 Device allowing the visualization of an image carried by a transparent medium WO1982002959A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1325/81810227 1981-02-27
CH132581A CH640356A5 (en) 1981-02-27 1981-02-27 Device for observing an image by a transparent support reach.

Publications (1)

Publication Number Publication Date
WO1982002959A1 true WO1982002959A1 (en) 1982-09-02

Family

ID=4207802

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH1982/000027 WO1982002959A1 (en) 1981-02-27 1982-02-23 Device allowing the visualization of an image carried by a transparent medium

Country Status (3)

Country Link
EP (1) EP0073205A1 (en)
CH (1) CH640356A5 (en)
WO (1) WO1982002959A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2532774A1 (en) * 1982-09-04 1984-03-09 Heraeus Gmbh W C APPARATUS FOR CONTROLLING THE AUTHENTICITY OF THUMBNAILS, PARTICULARLY TO MAKE THE STAMP STAMP FILIGRANE VISIBLE
FR2551238A1 (en) * 1983-05-25 1985-03-01 Heraeus Gmbh W C SUPPORT FOR A CONTROLLER OF THE POST-STAMP WATERMARK
EP0603706A1 (en) * 1992-12-19 1994-06-29 Röhm GmbH Light guide plate for illuminating changeable information

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5980840A (en) * 1997-04-25 1999-11-09 Bp Amoco Corporation Autothermic reactor and process using oxygen ion--conducting dense ceramic membrane

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE531639A (en) *
CH192945A (en) * 1936-11-16 1937-09-15 Mueller Daley J Advertising device.
US3197902A (en) * 1962-08-22 1965-08-03 Emerson Electric Co Light responsive sign
US4059916A (en) * 1975-01-30 1977-11-29 Copal Company Limited Light diffusing device
GB2030750A (en) * 1978-10-04 1980-04-10 Pierre Lo International Ltd Illuminated signs

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE531639A (en) *
CH192945A (en) * 1936-11-16 1937-09-15 Mueller Daley J Advertising device.
US3197902A (en) * 1962-08-22 1965-08-03 Emerson Electric Co Light responsive sign
US4059916A (en) * 1975-01-30 1977-11-29 Copal Company Limited Light diffusing device
GB2030750A (en) * 1978-10-04 1980-04-10 Pierre Lo International Ltd Illuminated signs

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2532774A1 (en) * 1982-09-04 1984-03-09 Heraeus Gmbh W C APPARATUS FOR CONTROLLING THE AUTHENTICITY OF THUMBNAILS, PARTICULARLY TO MAKE THE STAMP STAMP FILIGRANE VISIBLE
FR2551238A1 (en) * 1983-05-25 1985-03-01 Heraeus Gmbh W C SUPPORT FOR A CONTROLLER OF THE POST-STAMP WATERMARK
EP0603706A1 (en) * 1992-12-19 1994-06-29 Röhm GmbH Light guide plate for illuminating changeable information

Also Published As

Publication number Publication date
EP0073205A1 (en) 1983-03-09
CH640356A5 (en) 1983-12-30

Similar Documents

Publication Publication Date Title
US5546687A (en) Apparatus for displaying an illuminated image including light intensifier and method therefor
US3694648A (en) Ornamental device
US5899012A (en) Framed artwork display
US5371656A (en) Apparatus for displaying an illuminated image and method therefor
FR2513739A1 (en) LIGHTING DEVICE, ESPECIALLY FLASH, WITH DIFFUSER PANEL
WO1982002959A1 (en) Device allowing the visualization of an image carried by a transparent medium
CH635445A5 (en) ROTATING SCREEN FOR THE RECEPTION OF OPTICAL IMAGES, ESPECIALLY ADVERTISING IMAGES.
EP0159594B1 (en) Lighting apparatus having a high diffusion ability
FR2581771A2 (en) Apparatus for projecting and back-projecting slides with lap-dissolve (cross-fade) effect
EP0224394A1 (en) Projector with a spherical screen, in particular for advertising purposes
FR2536504A1 (en) Device for illuminating a plate of transparent or translucent material, particularly in a vehicle instrument panel
FR2576441A1 (en) Light display device
US2042268A (en) Advertising sign
KR890015218A (en) Video printer
CH183084A (en) Device for the illumination by transparency of texts or images inscribed on a sheet of semi-transparent material.
BE556652A (en)
KR200356463Y1 (en) Room Mirror of Vehicle having Decoration
KR200276218Y1 (en) Room Mirror of Vehicle having Decoration
EP4288837A1 (en) Light box for photography and videography
EP4036642A1 (en) Light box for photography and videography
FR2542190A2 (en) DEVICE FOR PLACING CONTACT LENSES WITH OPTICAL POSITION CONTROL
CH718289A2 (en) Light box for photography and videography.
FR2683691A1 (en) Line-by-line document analyser, with linear photosensor
FR2567622A1 (en) LIGHTING PROJECTOR FOR DIFFUSED LIGHTING
CH450138A (en) Using an opal photograph

Legal Events

Date Code Title Description
AK Designated states

Designated state(s): DK JP NO US

AL Designated countries for regional patents

Designated state(s): AT BE DE FR GB LU NL SE