WO1994015143B1 - Lighting system for spotlights, projectors and enlarging apparatuses - Google Patents

Lighting system for spotlights, projectors and enlarging apparatuses

Info

Publication number
WO1994015143B1
WO1994015143B1 PCT/CZ1993/000031 CZ9300031W WO9415143B1 WO 1994015143 B1 WO1994015143 B1 WO 1994015143B1 CZ 9300031 W CZ9300031 W CZ 9300031W WO 9415143 B1 WO9415143 B1 WO 9415143B1
Authority
WO
WIPO (PCT)
Prior art keywords
lenses
concave spherical
mirror
lighting system
main
Prior art date
Application number
PCT/CZ1993/000031
Other languages
French (fr)
Other versions
WO1994015143A1 (en
Filing date
Publication date
Priority claimed from CS923780A external-priority patent/CZ378092A3/en
Priority to RU9395113302A priority Critical patent/RU2079044C1/en
Priority to PL93309183A priority patent/PL172274B1/en
Priority to AU56221/94A priority patent/AU679018B2/en
Priority to UA95062742A priority patent/UA26461C2/en
Priority to DE69305654T priority patent/DE69305654T2/en
Priority to JP6514654A priority patent/JP2665274B2/en
Priority to KR1019950702137A priority patent/KR100204645B1/en
Application filed filed Critical
Priority to BR9307682-7A priority patent/BR9307682A/en
Priority to US08/347,379 priority patent/US5647664A/en
Priority to EP94901730A priority patent/EP0674757B1/en
Publication of WO1994015143A1 publication Critical patent/WO1994015143A1/en
Publication of WO1994015143B1 publication Critical patent/WO1994015143B1/en
Priority to NO19950988A priority patent/NO310254B1/en
Priority to FI951200A priority patent/FI107077B/en
Priority to DK199500657A priority patent/DK174451B1/en

Links

Abstract

The invention concerns a lighting system for spotlights, for automobile headlights, for medical and industrial spotlights. It consists of the light source (1), particularly the halogen light bulb, auxiliary mirror (2), the main mirror (3), consisting of a system of concave spherical mirrors (31), and a composite lens (4). All of these elements lie on the main optical axis (0). If a system of condensers (5) and an objective (7) is added to the basic part, the system can be used for cinema projectors and slide projectors.

Claims

AMENDED CLAIMS[received by the International Bureau on 17 June 1994 (17.06.94); original claims 1, 2 and 5-7 amended; remaining claims unchanged (3 pages)]
1. The lighting system for lighting fittings, projectors and enlarging apparatuses for providing an intensive and uniform illumination in an area of a given size and at a given distance, consisting of a light source (1), an auxiliary mirror (2), main mirror (3) and a raster lens (4) with converging optical elements (41) directing the light rays, coming from the light source (1), into the required plane (6), where it creates the light spot, characterized in that the reflexing area of said main mirror (3) is created as a raster of concave spherical mirrors (31), whose vertexes (32) are arranged on the surface, which has a shape of a rotational conic section, the axis of its rotation being its optical axis (O ) , having in the meridian plane a shape of a non-circle curve, optical axis (0 ) of said main mirror (3) being identical with the main optical axis (0) , on which both the centre of said light source (1) and the auxiliary mirror (2) are arranged, the particular reflecting areas of the concave spherical mirrors (31) having a focal length and an inclination of their optical axes (30) to project an image of the light source (1) to the vertexes (42) of geometrically corresponding lenses (41) of the raster lens (4), these particular lenses (41) projecting images of corresponding elemental surfaces of concave spherical mirror (31) of the main mirror (3) into the required plane of the light spot (6) .
2. The lighting system according to claim 1, characterized in that the projection, in a direction of the main optical axis (0) , of every concave spherical mirror (31) of the main mirror (3) into the imaginary plane, which is perpendicular to the main optical axis (0), corresponds to the shape of the light spot (6), said concave spherical mirrors (31) abut tightly to each other by their side walls, and the shape and size of each particular lens (41) of the raster lens (4) correspond as much as possible to the shape and size of the imaged field of the light source (1), where each image of the light source (1), created 'by the particular concave spherical mirror (31), passes through the lens (41), the location of which in the raster lens (4) geometrically corresponds to the location of said concave spherical mirror (31) in the main mirror (3), said lenses (41) having the same shape and size and abutting tightly to each other by their side walls.
3. The lighting system according to claims 1 and 2, characterized in that the concave spherical mirrors (31) are arranged in zones, where a group of concave spherical mirrors (31) of one zone has the same radius of curvature, which differs from that of a group of concave spherical mirrors (31) of another zone.
4. The lighting system according to claims 1 and 2, characterized in that the lenses (41) are arranged in zones, where a group of lenses (41) of one zone is extended along the main optical axix (0) in comparison with group of lenses (41) of a different zone, and the radii of curvature of lenses (41) in one zone differ from the same in other zones.
5. The lighting system according to claims 1 to 4, characterized in that the vertexes (42) of the lenses (41) of the raster lens (4) are arranged in one plane, which is perpendicular to the main optical axis (0), and their optical axes (40) are parallel with this main optical axis (0), the lenses (41) being planoconvex.
6. The lighting system according to claims 1 to 4, characterized in that the back surfaces (43) of lenses (41) of the raster lens (4) are inclined against their optical axes (40). - 18 -
7. The lighting system according to Claims 1 to 4, characterized in that the back surface of the raster lens (4) is concave.
8. The lighting system according to claims 1 to 7, characterized in that in front of the light spot (6) plane a condenser system (5) is being arranged.
PCT/CZ1993/000031 1992-12-21 1993-12-20 Lighting system for spotlights, projectors and enlarging apparatuses WO1994015143A1 (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
EP94901730A EP0674757B1 (en) 1992-12-21 1993-12-20 Lighting system for spotlights, projectors and enlarging apparatuses
KR1019950702137A KR100204645B1 (en) 1992-12-21 1993-12-20 Lighting system for spotlights and the like
AU56221/94A AU679018B2 (en) 1992-12-21 1993-12-20 Lighting system for spotlights, projectors and enlarging apparatuses
UA95062742A UA26461C2 (en) 1992-12-21 1993-12-20 LIGHTING SYSTEM FOR OPTICAL ELEMENTS, PROJECTORS AND PHOTOGRAPHERS
BR9307682-7A BR9307682A (en) 1992-12-21 1993-12-20 Lighting system for manual headlamps, projectors and magnifying devices
JP6514654A JP2665274B2 (en) 1992-12-21 1993-12-20 Lighting equipment for irradiation lamps, projectors and photo enlargers
PL93309183A PL172274B1 (en) 1992-12-21 1993-12-20 Illuminating system for use in lighting fittings, projectors and enlargers
RU9395113302A RU2079044C1 (en) 1992-12-21 1993-12-20 Lighting system for optical elements, projectors and photographic enlarger
DE69305654T DE69305654T2 (en) 1992-12-21 1993-12-20 LIGHTING SYSTEM FOR SPOTLIGHTS, HEADLIGHTS AND MAGNIFICATION DEVICES
US08/347,379 US5647664A (en) 1992-12-21 1993-12-20 Lighting system for spotlights and the like
FI951200A FI107077B (en) 1992-12-21 1995-03-15 Lighting systems for lighting devices, projectors and magnifiers
NO19950988A NO310254B1 (en) 1992-12-21 1995-03-15 Lighting system for spotlights, projectors and magnifiers
DK199500657A DK174451B1 (en) 1992-12-21 1995-06-09 Lighting equipment for car lights, projectors and magnifiers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CSPV3780-92 1992-12-21
CS923780A CZ378092A3 (en) 1992-12-21 1992-12-21 Lighting system for lighting fittings, projection and enlarging apparatus

Publications (2)

Publication Number Publication Date
WO1994015143A1 WO1994015143A1 (en) 1994-07-07
WO1994015143B1 true WO1994015143B1 (en) 1994-08-18

Family

ID=5378886

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CZ1993/000031 WO1994015143A1 (en) 1992-12-21 1993-12-20 Lighting system for spotlights, projectors and enlarging apparatuses

Country Status (21)

Country Link
US (1) US5647664A (en)
EP (1) EP0674757B1 (en)
JP (1) JP2665274B2 (en)
KR (1) KR100204645B1 (en)
CN (1) CN1031528C (en)
AT (1) ATE144607T1 (en)
AU (1) AU679018B2 (en)
BR (1) BR9307682A (en)
CA (1) CA2147130C (en)
CZ (1) CZ378092A3 (en)
DE (1) DE69305654T2 (en)
DK (1) DK174451B1 (en)
ES (1) ES2094634T3 (en)
FI (1) FI107077B (en)
HU (1) HU217757B (en)
NO (1) NO310254B1 (en)
PL (1) PL172274B1 (en)
RU (1) RU2079044C1 (en)
SI (1) SI9300668A (en)
SK (1) SK277928B6 (en)
WO (1) WO1994015143A1 (en)

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