[go: up one dir, main page]

FR2761170A1 - Preventing red eye in photography - Google Patents

Preventing red eye in photography Download PDF

Info

Publication number
FR2761170A1
FR2761170A1 FR9703529A FR9703529A FR2761170A1 FR 2761170 A1 FR2761170 A1 FR 2761170A1 FR 9703529 A FR9703529 A FR 9703529A FR 9703529 A FR9703529 A FR 9703529A FR 2761170 A1 FR2761170 A1 FR 2761170A1
Authority
FR
France
Prior art keywords
reflector
flash
diffuser
flash tube
photography
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
FR9703529A
Other languages
French (fr)
Inventor
Xavier Vigla
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 FR9703529A priority Critical patent/FR2761170A1/en
Publication of FR2761170A1 publication Critical patent/FR2761170A1/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
    • G03B15/00—Special procedures for taking photographs; Apparatus therefor
    • G03B15/02—Illuminating scene
    • G03B15/03—Combinations of cameras with lighting apparatus; Flash units
    • G03B15/05—Combinations of cameras with electronic flash apparatus; Electronic flash units
    • 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
    • G03B2215/00—Special procedures for taking photographs; Apparatus therefor
    • G03B2215/05—Combinations of cameras with electronic flash units
    • G03B2215/0514—Separate unit
    • G03B2215/0517—Housing
    • G03B2215/0525—Reflector
    • G03B2215/0535—Built-in diffusor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Stroboscope Apparatuses (AREA)

Abstract

A small diffuser (3) which is black, opaque and concave is placed about three millimetres in front of the flash tube (2). the diffuser is about three millimetres wide and has a radius of concavity of about fifteen millimetres. Light from the flash tube (2) which would otherwise be projected directly forward is diffused by the diffuser and reflected back to the main mirror from where it is shone on to the subject from all angles. The diffuser (3) may be used whatever the focus and does not involve any loss of light.

Description

La présente invention consiste en un dispositif destiné à éliminer le phénomène des yeux rouges qui apparat souvent sur les photos d'amateurs représentant des personnes et notamment des enfants et des animaux domestiques. The present invention consists of a device intended to eliminate the phenomenon of red eyes which often appears on the photos of amateurs representing people and in particular children and domestic animals.

Ce genre d'imperfection se produit généralement en utilisant un appareil compact muni d'un flash incorporé -Fig 1
Beaucoup d'appareils compacts sont équipés d'un voyant anti yeux rouges qui se révèle cependant inefficaces ,et dans la plupart de ces cas : les yeux restent rouges. Ce dispositif étant basé sur la contraction de la pupilie.This kind of imperfection generally occurs using a compact camera with a built-in flash -Fig 1
Many compact devices are equipped with an anti-red eye indicator which proves however ineffective, and in most of these cases: the eyes remain red. This device is based on the contraction of the pupil.

Le dispositif mis en jeu par cette invention permet de remédier à cet inconvénient : on utilise un petit réflecteur noir, concave. opaque, que l'on place devant le tube flash, ce petit réflecteur a pour effet d'agir comme un diffuseur et de renvoyer la puissance de l'éclair dans le grand réflecteur. The device used by this invention overcomes this drawback: a small, concave black reflector is used. opaque, which is placed in front of the flash tube, this small reflector has the effect of acting as a diffuser and returning the power of lightning in the large reflector.

C'est donc le grand réflecteur qui enverra la puissance de l'éclair sur le sujet photographié. It is therefore the large reflector which will send the power of lightning to the subject photographed.

Les dessins annexés illustrent l'invention:
La figure 1 représente un appareil standard compact muni de son flash.The accompanying drawings illustrate the invention:
Figure 1 shows a standard compact device with its flash.

La figure 2 représente le flash: vue de face.Figure 2 shows the flash: front view.

La figure 3 représente ce même flash: vue en coupe.Figure 3 shows the same flash: sectional view.

La figure 4 représente le flash: vue de face avec le dispositif de l'invention.Figure 4 shows the flash: front view with the device of the invention.

La figure 5 représente le flash: vue en coupe avec le dispositif de l'invention. Figure 5 shows the flash: sectional view with the device of the invention.

La figure 6 représente le flash: vue en coupe avec le dispositif de l'invention, avec le parcours de la lumière.Figure 6 shows the flash: sectional view with the device of the invention, with the path of light.

En référence à ces dessins, le dispositif consiste à placer à environ 3 millimétres (variation suivant les modèles) devant le tube éclair (2) et sur toute la longueur de ce tube -Fig 4-, un petit diffuseur (3) noir, concave, opaque, d'environ 3 millimètres de large et de rayon de concavité d'environ 15 millimètres. With reference to these drawings, the device consists of placing approximately 3 millimeters (variation depending on the model) in front of the flash tube (2) and over the entire length of this tube -Fig 4-, a small, concave black diffuser (3) , opaque, about 3 millimeters wide and about 15 millimeters in radius of concavity.

Ce petit diffuseur pnmaire (3) renverra la puissance de l'éclair vers le grand
réflecteur général (1) et de là, vers le sujet photographié.This small primary diffuser (3) will return the power of lightning to the large
general reflector (1) and from there to the photographed subject.

Autres définitions du parcours de la lumière:
Dés que la puissance de lumière du tube éclair (2) sera déclenché en direction du
petit réflecteur primaire (3) cette lumière sera diffusée et renvoyée vers le grand réflecteur général (1).Other definitions of the light path:
As soon as the light output of the flash tube (2) is triggered towards the
small primary reflector (3) this light will be diffused and returned to the large general reflector (1).

Cette lumière sera une lumière réfléchie qui se propagera dans tous les sens vers le
sujet photographié. This light will be a reflected light which will propagate in all directions towards the
subject photographed.

Le dispositif de l'invention n'aura aucune perte de puissance d'éclair renvoyé par le grand réflecteur (1). The device of the invention will have no loss of flash power returned by the large reflector (1).

Quelle que soit la focale, le rôle de cette protection est faite pour empêcher la lumière directe du tube flash d'aller au fond de l'oeil.Whatever the focal length, the role of this protection is made to prevent direct light from the flash tube from reaching the back of the eye.

Le dispositif selon l'invention est particulièrement destiné à éliminer le phénomène des yeux rouges . The device according to the invention is particularly intended to eliminate the phenomenon of red eyes.

Le réflecteur peut-être mobile en fonction de l'optique utilisé, sa distance vis à vis du tube pouvant être variable. Ce réflecteur peut être placé de la même façon pour flash droit, coudé ou annulaire et il servira dans la prise de vue photographique standard au flash, à la prise de vue vidéo et à la photographie numérique.The reflector can be mobile depending on the optics used, its distance from the tube can be variable. This reflector can be placed in the same way for straight, angled or annular flash and it will be used in standard photographic flash shooting, video shooting and digital photography.

Le réflecteur (3) se présente à environ 3 mm devant le tube flash et il a un rayon de concavité d'environ 15 mm.The reflector (3) is located approximately 3 mm in front of the flash tube and has a concavity radius of approximately 15 mm.

Ce réflecteur (3) peut être collé sur le tube flash ou ii peut être peint avec une peinture noire, mate, opaque ou autre matière. This reflector (3) can be glued to the flash tube or it can be painted with black, mat, opaque paint or other material.

Claims (3)

REVENDICA TIONSREVENDICA TIONS 1) Dispositif pour éliminer les yeux rouges en photographie, caractérisé en ce qu'on ajoute au flash un petit réflecteur (3) concave, noir, opaque devant le tube flash (2), ce réflecteur primaire (3) renvoyant la puissance de l'éclair dans ie grand réflecteur (1).  1) Device for eliminating red eyes in photography, characterized in that a small concave reflector (3), black, opaque in front of the flash tube (2) is added to the flash, this primary reflector (3) returning the power of the 'flash in the large reflector (1). La puissance du tube éclair (2) n'étant plus envoyée directement sur le sujet photographié mais uniquement par le grand réflecteur (1).The power of the flash tube (2) is no longer sent directly to the subject photographed but only through the large reflector (1). 2) Dispositif selon la revendication 1 caractérisé en ce que le réflecteur (3) est placé à environ 3 mm devant le tube flash et présente un rayon de concavité d'environ 15 mm. 2) Device according to claim 1 characterized in that the reflector (3) is placed about 3 mm in front of the flash tube and has a concavity radius of about 15 mm. 3) Dispositif selon la revendication 1 caractérisé en ce que le réflecteur (3) est collé sur le tube flash.  3) Device according to claim 1 characterized in that the reflector (3) is bonded to the flash tube.
FR9703529A 1997-03-24 1997-03-24 Preventing red eye in photography Pending FR2761170A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9703529A FR2761170A1 (en) 1997-03-24 1997-03-24 Preventing red eye in photography

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9703529A FR2761170A1 (en) 1997-03-24 1997-03-24 Preventing red eye in photography

Publications (1)

Publication Number Publication Date
FR2761170A1 true FR2761170A1 (en) 1998-09-25

Family

ID=9505090

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9703529A Pending FR2761170A1 (en) 1997-03-24 1997-03-24 Preventing red eye in photography

Country Status (1)

Country Link
FR (1) FR2761170A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024245534A1 (en) * 2023-05-30 2024-12-05 Huawei Technologies Co., Ltd. Adaptable illumination system for an optical system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4991063A (en) * 1990-06-18 1991-02-05 Eastman Kodak Company Photographic flash apparatus
EP0437076A1 (en) * 1989-12-21 1991-07-17 Canon Kabushiki Kaisha Red-eye phenomenon preventing device
US5337104A (en) * 1992-11-09 1994-08-09 Smith Neil D Apparatus and method for redirecting camera flash light so as to avoid red-eye
EP0729059A1 (en) * 1995-02-23 1996-08-28 Canon Kabushiki Kaisha Illumination device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0437076A1 (en) * 1989-12-21 1991-07-17 Canon Kabushiki Kaisha Red-eye phenomenon preventing device
US4991063A (en) * 1990-06-18 1991-02-05 Eastman Kodak Company Photographic flash apparatus
US5337104A (en) * 1992-11-09 1994-08-09 Smith Neil D Apparatus and method for redirecting camera flash light so as to avoid red-eye
EP0729059A1 (en) * 1995-02-23 1996-08-28 Canon Kabushiki Kaisha Illumination device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024245534A1 (en) * 2023-05-30 2024-12-05 Huawei Technologies Co., Ltd. Adaptable illumination system for an optical system

Similar Documents

Publication Publication Date Title
US3539798A (en) Shadowless projection systems
FR2423800A1 (en) FOCUS CONTROL SYSTEM FOR INTERCHANGEABLE LENSES WITH ADJUSTABLE FOCUS
FR2431655A1 (en) VARIABLE MASKING DEVICE FOR LIGHTING PROJECTORS
EA200200984A1 (en) DEVICE FOR RECEPTION OF PANORAMIC IMAGE
DE60224635D1 (en) Optical system, image display device and image capture device
FR2363053A1 (en) LIGHTING DEVICE, IN PARTICULAR PROJECTOR
EP1231494A3 (en) Imaging device
WO2002075348A3 (en) Omni-directional radiation source and object locator
SE0102332D0 (en) Optical system device
FR2761170A1 (en) Preventing red eye in photography
FR2697097B1 (en) Camera with zoom lens.
FR2667699A1 (en) IMPACT RESISTANT PHOTOGRAPHIC APPARATUS.
FR2643471A1 (en) PHOTOSENSOR DEVICE PROVIDED WITH A SEMI-REFLECTIVE ELEMENT PLACED IN A SIGHT HOLE UNDER A CAMERA
FR2422185A1 (en) IMPROVEMENTS MADE TO PROJECTION SCREENS BY TRANSPARENCY
US7499099B2 (en) Illumination apparatus and image-taking apparatus
FR2363813A1 (en) SHOOTING DEVICE, PRISM
FR2373031A1 (en) DEVICE INTENDED TO DETERMINE THE DIRECTION OF A REMOTE OBJECT
EP0024326A1 (en) Afocal optical device
CH640951A5 (en) ACCESSORY UNIT FOR FIXING ON A LENS.
JPH10253529A5 (en)
FR2414741A1 (en) PHOTOGRAPHY WITH REFLECTION LIGHT MEASURING SYSTEM TO DETERMINE THE CORRECT EXPOSURE
GB918233A (en) Improvements in and relating to range-view-finders
KR910012794A (en) Red eye phenomenon prevention device
RU2008103627A (en) 3-DIMENSIONAL DETECTOR OF IMAGES
TWI298419B (en) Imaging camera