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WO1998020277A1 - Optique de renvoi et statif special pour camera video montee sur lampe dentaire - Google Patents

Optique de renvoi et statif special pour camera video montee sur lampe dentaire Download PDF

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Publication number
WO1998020277A1
WO1998020277A1 PCT/DE1997/002532 DE9702532W WO9820277A1 WO 1998020277 A1 WO1998020277 A1 WO 1998020277A1 DE 9702532 W DE9702532 W DE 9702532W WO 9820277 A1 WO9820277 A1 WO 9820277A1
Authority
WO
WIPO (PCT)
Prior art keywords
dental
camera
lamp
video camera
optics
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.)
Ceased
Application number
PCT/DE1997/002532
Other languages
German (de)
English (en)
Inventor
Benno Raddatz
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 AU53062/98A priority Critical patent/AU5306298A/en
Publication of WO1998020277A1 publication Critical patent/WO1998020277A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/56—Cameras or camera modules comprising electronic image sensors; Control thereof provided with illuminating means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details

Definitions

  • the invention is a deflection optics and a special tripod for one
  • Video camera that can be quickly removed from any dental light.
  • intraoral cameras are increasingly being used in dentistry in addition to normal video and photo cameras.
  • the lens is inserted more or less far into the patient's mouth.
  • the illumination of the object - tooth or oral mucosa - is usually done by cold light, light generated by distant halogen lamps, which is guided to the front lens of the lens by means of glass fibers.
  • the intraoral video camera must be operated either by the dentist or his assistant.
  • the treatment must always be interrupted during your application, since either the unobstructed view of the teeth etc. is obstructed or the lens (intraoral) must be removed from the mouth for cleaning due to fogging or dirt (saliva, drilling chips etc.). Since the camera itself is operated with an electrical voltage (usually 12 volts), there is a residual risk of a power accident in the patient's mouth.
  • these intraoral cameras have the following disadvantages:
  • the camera optics is contaminated by contact with the patient's mouth and must therefore be disinfected, better, sterilized after each use.
  • the dentist When using the intraoral cameras, the dentist must interrupt the treatment and take the camera in hand.
  • the extra-oral cameras in the dental field are usually normal camcorders (camera-recorder combinations), which are attached to a separate tripod (floor or ceiling tripods) or have to be held by the dentist himself with the hand. Either the dental dental light or a separate light source outside the patient's mouth serves as lighting.
  • These "normal" video cameras have the following disadvantages in the dental sector.
  • the practitioner or his assistant need both hands for the admission.
  • the patient is given a view of the patient for the duration of the admission
  • the invention uses the mobility and illuminance of any dental lamp to achieve optimal video recordings without interrupting the treatment process.
  • the invention makes it possible to achieve an optimally illuminated and shadow-free recording of an object, regardless of the recording distance, since the light source is arranged around the optical axis of the receiving lens and the light beams always run parallel to the optical axis.
  • the optical axis of the objective is moved into the center of the beam path of the dental lamp by the double beam deflection of the periscope optics and the pull-out second mirror (FIG. 1). This avoids parallax errors (FIG. 2) and the image is always taken in the center of the light cone of the dental lamp.
  • An intraoral intake e.g. the back surface of a tooth can easily be done with a mouth mirror (Fig. 5/1).
  • the light-mounted video camera with deflection optics makes an intraoral camera unnecessary. This eliminates any contamination of the lens with saliva or blood and therefore disinfection of the lens is necessary. A risk of infection of the patient due to soiled optics is completely excluded.
  • the extraoral "intraoral camera” has the advantage that no electromagnetic voltages can occur in the patient's mouth (short circuits, etc.)
  • CMOS complementary metal-oxide-semiconductor
  • any dental lamp can be retrofitted with the invention.
  • the quick-change tripod makes more cameras - e.g. B. in each treatment room another camera - superfluous, since only a tripod is mounted (glued) on each dental lamp and a cable for the video connections / power supply and possibly audio must be laid.
  • the tooth to be treated is shaded by dental instruments or the doctor's fingers, it is also impossible to obtain a perfect image.
  • the dentist and assistant have constant control of the video recording and thus continuous observation and documentation of the dental treatment is possible without interrupting the treatment process.
  • Another advantage is that the double beam deflection (periscope optics) means that all objects are imaged correctly on the observation monitor.
  • the parallax is the angle between the optical axis of the lens, the object to be photographed and the viewfinder.
  • the parallax error - what you see through the viewfinder does not match what is being photographed - is the bigger the closer you get to the object.
  • Transferred to the dental light means that the closer a camera that is mounted on the light comes to the patient's mouth, the further the central beam of the light and the optical axis of the video camera diverge (FIG. 7). In photography, this problem was solved with the SLR technique.
  • Fig. 1 camera optics on light
  • A optical axis
  • ZS central beam of the dental lamp
  • SS beam path of the dental lamp
  • D optimal working distance: 700mm Fig. 4 focusing with pins
  • Fig. 7 camera tunnel (.. outer housing) with an internally rotatable camera
  • A jaw position of the lying patient

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Endoscopes (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

La présente invention permet de transformer toute lampe dentaire en lampe d'opération avec caméra vidéo installée au centre. Par ailleurs, une caméra vidéo à optique de renvoi et statif spécial est montée sur la lampe dentaire. Le statif spécial permet d'ajuster la caméra de telle manière que son axe optique soit parallèle au rayon cenral de la lampe dentaire. L'axe optique de la caméra vidéo est dévié virtuellement vers le centre du faisceau lumineux grâce à l'optique de renvoi. Ainsi, les enregistrements vidéo sont toujours faits sous les meilleurs rapports d'éclairage en partant du milieu de la lampe dentaire et ne présentent absolument aucune ombre. Une équipe médecin/assistants bien exercée pourra à l'avenir procéder à une traitement par moniteur video d'une manière moins fatiguante pour les yeux.
PCT/DE1997/002532 1996-11-02 1997-10-31 Optique de renvoi et statif special pour camera video montee sur lampe dentaire Ceased WO1998020277A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU53062/98A AU5306298A (en) 1996-11-02 1997-10-31 Reflective optics and special stative for video camera mounted on a dental lamp

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29619074U DE29619074U1 (de) 1996-11-02 1996-11-02 Auf Dentalleuchte montierbare Miniatur-Video-Kamera mit Periskop-Optik
DE29619074.8 1996-11-02

Publications (1)

Publication Number Publication Date
WO1998020277A1 true WO1998020277A1 (fr) 1998-05-14

Family

ID=8031424

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1997/002532 Ceased WO1998020277A1 (fr) 1996-11-02 1997-10-31 Optique de renvoi et statif special pour camera video montee sur lampe dentaire

Country Status (3)

Country Link
AU (1) AU5306298A (fr)
DE (1) DE29619074U1 (fr)
WO (1) WO1998020277A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002017014A1 (fr) * 2000-08-23 2002-02-28 The Royal Alexandra Hospital For Children Camera chirurgicale portee sur la tete
EP1407723A3 (fr) * 2002-10-08 2004-06-09 CASTELLINI S.p.A. Unité dentaire
WO2004100815A3 (fr) * 2003-05-16 2005-02-10 Zeiss Carl Dispositif d'eclairage d'un champ operatoire
AU2001279497B2 (en) * 2000-08-23 2006-11-09 The Royal Alexandra Hospital For Children Surgical head camera
US8456568B2 (en) 2008-04-23 2013-06-04 Koninklijke Philips Electronics N.V. Illumination device with improved remote control
DE202013007639U1 (de) 2013-08-27 2013-11-13 Benno Raddatz Modulare Multifunktions-Behandlungs- und Operationsleuchte für die Medizin und Zahnmedizin

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19849660A1 (de) * 1998-10-29 2000-05-11 Hans Peter Schepperheyn Zahnärztliches Handstück
DE102015004970A1 (de) * 2015-04-20 2016-05-04 Drägerwerk AG & Co. KGaA Beleuchtungssystem mit einer Kamera

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2675462A (en) * 1949-05-10 1954-04-13 Emi Ltd Illuminating means for television apparatus
US4051534A (en) * 1976-10-27 1977-09-27 Honeywell Inc. Head attached television
DE8814303U1 (de) 1988-11-15 1989-01-12 Delma, elektro- und medizinische Apparatebau GmbH, 7200 Tuttlingen Gelenkig angeordnete Operationsleuchte
DE29621838U1 (de) 1996-05-03 1997-03-13 Sirona Dental Systems GmbH, 64625 Bensheim Videokamera zur Erstellung von Gesichts- und/oder Behandlungssequenz-Aufnahmen in der zahnärztlichen Praxis

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4915626A (en) * 1989-01-18 1990-04-10 Lemmey Edgar S Dental inspection and display apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2675462A (en) * 1949-05-10 1954-04-13 Emi Ltd Illuminating means for television apparatus
US4051534A (en) * 1976-10-27 1977-09-27 Honeywell Inc. Head attached television
DE8814303U1 (de) 1988-11-15 1989-01-12 Delma, elektro- und medizinische Apparatebau GmbH, 7200 Tuttlingen Gelenkig angeordnete Operationsleuchte
DE29621838U1 (de) 1996-05-03 1997-03-13 Sirona Dental Systems GmbH, 64625 Bensheim Videokamera zur Erstellung von Gesichts- und/oder Behandlungssequenz-Aufnahmen in der zahnärztlichen Praxis

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002017014A1 (fr) * 2000-08-23 2002-02-28 The Royal Alexandra Hospital For Children Camera chirurgicale portee sur la tete
US6927918B2 (en) 2000-08-23 2005-08-09 The Royal Alexandra Hospital For Children Surgical head camera
AU2001279497B2 (en) * 2000-08-23 2006-11-09 The Royal Alexandra Hospital For Children Surgical head camera
EP1407723A3 (fr) * 2002-10-08 2004-06-09 CASTELLINI S.p.A. Unité dentaire
WO2004100815A3 (fr) * 2003-05-16 2005-02-10 Zeiss Carl Dispositif d'eclairage d'un champ operatoire
US8456568B2 (en) 2008-04-23 2013-06-04 Koninklijke Philips Electronics N.V. Illumination device with improved remote control
US8786766B2 (en) 2008-04-23 2014-07-22 Koninklijke Philips N.V. Illumination device with improved remote control
DE202013007639U1 (de) 2013-08-27 2013-11-13 Benno Raddatz Modulare Multifunktions-Behandlungs- und Operationsleuchte für die Medizin und Zahnmedizin

Also Published As

Publication number Publication date
DE29619074U1 (de) 1997-03-06
AU5306298A (en) 1998-05-29

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