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1. WO2020139084 - LIGHT SOURCE FOR OPHTHALMIC APPLICATIONS

Publication Number WO/2020/139084
Publication Date 02.07.2020
International Application No. PCT/NL2019/050859
International Filing Date 19.12.2019
IPC
F21K 9/64 2016.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
KNON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
9Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes or lasers
60Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
64using wavelength conversion means distinct or spaced from the light-generating element, e.g. a remote phosphor layer
G03B 21/20 2006.01
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
BAPPARATUS 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
21Projectors or projection-type viewers; Accessories therefor
14Details
20Lamp housings
H04N 9/31 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
9Details of colour television systems
12Picture reproducers
31Projection devices for colour picture display
CPC
A61F 9/008
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
9Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
007Methods or devices for eye surgery
008using laser
G03B 21/204
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
BAPPARATUS 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
21Projectors or projection-type viewers; Accessories therefor
14Details
20Lamp housings
2006characterised by the light source
2033LED or laser light sources
204using secondary light emission, e.g. luminescence or fluorescence
G03B 33/12
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
BAPPARATUS 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
33Colour photography, other than mere exposure or projection of a colour film
10Simultaneous recording or projection
12using beam-splitting or beam-combining systems, e.g. dichroic mirrors
Applicants
  • CREA IP B.V. [NL]/[NL]
Inventors
  • DAM-HUISMAN, Adriaantje Coliene
Agents
  • NEDERLANDSCH OCTROOIBUREAU
Priority Data
202232228.12.2018NL
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) LIGHT SOURCE FOR OPHTHALMIC APPLICATIONS
(FR) SOURCE DE LUMIÈRE DESTINÉE À DES APPLICATIONS OPHTALMIQUES
Abstract
(EN)
A light source for providing a light beam to an ophthalmic instrument with a predetermined spectral content, with a first light source device (1) for providing a first beam of light (9a) along a first optical axis and with a radiation opening angle (a). A mirror body (6) has a mirror aperture (6a) aligned with the first optical axis for allowing the first beam of light (9a) to partially pass, and a mirror surface (6b) adjacent to the mirror aperture (6a) for directing radiation from the first beam of light (9a) back to the layer of wavelength conversion material (1a). Also, a second light source device (7) may be present for providing a second beam of light (9a) along a second optical axis, and a dichroic mirror (3) for combining the first beam of light (9a) and the second beam of light (9b) into a combined beam of light (9c).
(FR)
La présente invention concerne une source de lumière servant à fournir un faisceau de lumière à un instrument ophtalmique ayant une teneur spectrale prédéterminée, ayant un premier dispositif de source de lumière (1) servant à fournir un premier faisceau de lumière (9a) le long d'un premier axe optique et ayant un angle d'ouverture de rayonnement (a). Un corps de miroir (6) a une ouverture de miroir (6a) alignée sur le premier axe optique servant à permettre au premier faisceau de lumière (9a) de passer partiellement, et une surface de miroir (6b) adjacente à l'ouverture de miroir (6a) servant à rediriger un rayonnement du premier faisceau de lumière (9a) à la couche de matériau de conversion de longueur d'onde (1a). En outre, un second dispositif de source de lumière (7) peut être présent et sert à fournir un second faisceau de lumière (9a) le long d'un second axe optique, et un miroir dichroïque (3) servant à combiner le premier faisceau de lumière (9a) et le second faisceau de lumière (9b) en un faisceau de lumière combiné (9c).
Also published as
Latest bibliographic data on file with the International Bureau