Headlight

Patent metadata

Field	Value
Publication number	US-2019179072-A1
Application number	US-201716324517-A
Country	US
Kind code	A1
Filing date	Aug 9, 2017
Priority date	Aug 9, 2016
Publication date	Jun 13, 2019
Grant date	—

Abstract

A spotlight ( 1 ) is described for illuminating a film, studio, stage, event, and/or theatre environment. The spotlight comprises: a reflector arrangement ( 11 ) having a reflective inner surface ( 113 ), which delimits a reflector interior ( 114 ); a number of passive light guides ( 12 ) having feed points ( 121 ), which are arranged outside the reflector interior ( 114 ), and having light output points ( 122 ), which are arranged inside the reflector interior ( 114 ).

First claim

1 . A spotlight for illuminating a film, studio, stage, event, and/or theatre environment, comprising:
a reflector arrangement having a reflective inner surface, which delimits a reflector interior; and a number of passive light guides having feed points, which are arranged outside the reflector interior, and having light output points, which are arranged inside the reflector interior.

2 . A spotlight according to claim 1 , furthermore comprising an electrically operated light source arrangement, which is arranged outside the reflector interior and is designed to generate light and feed it in at the feed points of the passive light guides.

3 . A spotlight according to claim 1 , wherein the reflective inner surface of the reflector arrangement is formed in the manner of a truncated cone growing in diameter in the direction of the light exit or similar to a paraboloid.

4 . A spotlight according to claim 1 , wherein the reflector arrangement is a curved reflector and/or the light guides are each formed rod-shaped.

5 . A spotlight according to claim 1 , wherein the light guides penetrate the inner surface of the reflector arrangement.

6 . (canceled)

7 . A spotlight according to claim 1 , wherein the passive light guides are arranged along an imaginary circle and the longitudinal extensions are each oriented perpendicularly in relation to the peripheral profile of the imaginary circle.

8 . (canceled)

9 . A according to claim 1 , wherein the light output points are arranged concentrically in relation to the inner surface of the reflector arrangement.

10 . A spotlight according to claim 1 , wherein the passive light guides each have a polygonal cross section.

11 . (canceled)

12 . (canceled)

13 . A spotlight according to claim 1 , wherein the light output points of the passive light guides are formed by an essentially planar light guide terminus face, the surface normal of which is oriented at an angle of less than 30° to the longitudinal extension of the respective light guide.

14 . (canceled)

15 . A spotlight according to claim 1 , furthermore comprising a lens arrangement arranged in the reflector interior having at least two lens elements oriented concentrically in relation to one another, which can optionally be arranged movably in relation to one another.

16 . A spotlight according to claim 15 , wherein the lens elements are formed as diffusion lenses, and/or wherein the lens elements each have a wavy structure, wherein, optionally, the wavy structures can be provided on the inner surfaces of the diffusion lenses.

17 . (canceled)

18 . A spotlight according to claim 1 , furthermore comprising a pre-reflector ( 116 ), which is arranged between the light output points of the passive light guides and the base of the reflector arrangement.

19 . A spotlight according to claim 2 , wherein the light source arrangement has a support, on the front side of which LEDs are arranged, which generate the light.

20 . A spotlight according to claim 19 , wherein the LEDs or subgroups thereof are electrically connected to one another via a number of current paths.

21 . A spotlight according to claim 20 , wherein the current paths are also arranged on the front side of the support and/or wherein the current paths each have a wedge-shaped profile, the tip of which points essentially into the centre of the front side.

22 . (canceled)

23 . A spotlight according to claim 19 , comprising:
LEDs having first LEDs of a first colour and second LEDs of a second colour, which are each installed on the front side of the support; wherein: the front side has a structure pattern, which is formed from a plurality of adjoining hexagonal cells of equal size; and each of the LEDs is arranged in a separate hexagonal cell.

24 . (canceled)

25 . (canceled)

26 . (canceled)

27 . A spotlight according to claim 23 , wherein the geometrical centre point of the distribution of the first LEDs and the geometrical centre point of the distribution of the second LEDs are coincident with the centre point of the front side.

28 . (canceled)

29 . (canceled)

30 . (canceled)

31 . (canceled)

32 . A spotlight according to claim 19 , furthermore comprising:
a primary lens arrangement, which is positioned at a distance between 50 μm and 1 mm from the LEDs, wherein the primary lens arrangement comprises at least one lens element for each of the LEDs.

33 . (canceled)

34 . (canceled)

35 . A spotlight according to claim 32 , wherein the primary lens arrangement is designed to output at least 70% of the light generated by the LEDs in a light cone having an aperture angle of less than 35°.

36 . A spotlight according to claim 32 , wherein the lens elements are installed on the front side of a support of the primary lens arrangement facing away from the front side of the support, and wherein
the front side of the support has a structure pattern, which is formed from a plurality of adjoining hexagonal cells of equal size; each of the lens elements is arranged in a separate hexagonal cell.

37 . (canceled)

38 . (canceled)

Assignees

• Arnold & Richter Cinetech

Inventors

• Muschaweck Julius

Classifications

• G02B6/0008 Primary

  the light being emitted at the end of the fibre · CPC title

• F21Y2103/33

  annular · CPC title

• F21W2131/406

  for theatres, stages or film studios · CPC title

• F21Y2113/10

  of different colours · CPC title

• F21Y2105/12

  characterised by the geometrical disposition of the light-generating elements, e.g. arranging light-generating elements in differing patterns or densities · CPC title