DE7411726U - LIGHTING ELEMENT - Google Patents

Description

R 73 PaGm 74/1

Rotaflex (Great.Britain) Limited, Rotaflex House, 241 City Road, London EC1 / England

Be lighting fixtures

The invention relates to a lighting fixture, for example a point radiator or a light effect lamp.

There are lighting fixtures or lights that are parabolic Require reflector while others require an elliptical reflector. For example, a simple spotlight requires on a so-called "barn door" light of the lamp housing with a parabolic reflector. For example, elliptical reflectors are used in conjunction with with a lens attachment or with an additional device. Switch of pattern or contour panels and the like.

If you want to change the basic characteristics of light effects, you have so far been required to stock up on different, self-contained Having lighting fixtures or luminaires on hand, and this entails considerable costs. You can do one keep a limited range of additional equipment available,

7411726 07.0i.77

t I «(1 <

ι ι ι * * »a ·

• t

for example, color-change filters and lens attachments. like. _ir order but to have the full effect area available, which has been mentioned above, lamp housing must parabolic reflectors and other to be kept with elliptical reflectors.

The present invention relates to a lighting fixture, whose housing is provided with an elliptical reflector and with devices that are known per se are determined by interchangeable additional equipment on the housing. The lighting fixture according to the invention is characterized in that the housing is additionally provided with a parabolic reflector, at least one of the two reflectors can be removed from the housing.

This modification makes it possible to use a basic series of Provide lighting fixtures, regardless of whether a parabolic or an elliptical reflector is required, wherein a single base lamp housing provides the required light source. This can be used for a wide range of lighting effects can be provided without having to equip two or more lamp housing units are needed.

The parabolic reflector is preferably arranged in a removable manner in front of the elliptical reflector and shields it. Of the elliptical reflector can thus always remain in the intended position on the lamp housing.

7411726 07.Oi, 77

■ t · ι · a ι

»It t ■ · a ■

Extension rods for permanent attachment are also preferred provided on the lamp housing, which extends from the housing extend forward and lie parallel to the optical axis of the reflectors and for receiving and attaching additional equipment serve in front of the reflectors.

The invention is explained in more detail below using an exemplary embodiment with reference to the drawings. In the Drawings are:

1 and 2 are an axial section and a front view of a lamp housing base unit, respectively

Figures 3 to 6 are diagrams showing some possible combinations of Show units that can be attached to the lamp housing base unit.

The base lamp housing L, which is shown in Figs. 1 and 2, has a body 1 with a lamp socket 2 for a bulb 3, an elliptical reflector 4, a parabolic reflector 5 and a rear cover plate 6. The body 1 is in cross section round and has four equally spaced, axially perforated eyelets or lugs 7 for receiving fastening screws, Grub screws or rods, with two diametrically opposed eyelets 7 receiving screw bolts 8 »around the Take up reflectors 4, 5 and hold them in the intended position with the aid of nuts 9.

The housing is shown in a position in which the parabolic

7411726 07.0477

t t I

Reflector 5 comes into function and shields the elliptical reflector in order to form a simple point radiator. Of the The parabolic reflector 5 can, however, be removed so that the elliptical reflector 4 can be punctured if necessary. Wern a low voltage bulb 3 is used is a gradation ^ -

• arranged ^ converter required, and this can be removed from the housing '"" "---' and be connected to the lamp socket by a cable, but preferably it sits directly behind the lamp housing, such as which is shown in FIG. 3. The lamp housing L and the converter T are together on a stirrup-like holder 1o appropriate.

In Fig. 4, the units T and L are shown still with the parabolic reflector 5 in function, supplemented by a so-called Barn-door end-cap assembly B with hinged panels 11 having non-reflective surfaces. In Fig. 5 a variant of an adjustable headlight is shown in which the units T and L, now with the parabolic removed Reflector, supplemented by a socket F and a holder H for a lens. More holders H can be added, e.g. for a color filter and for Fresnel lenses. The socket F is shown with an adjustable plate frame diaphragm, but has an alternative arrangement of a diaphragm for generating round bundles of rays of variable diameter. Another variant is shown in Fig. 6, in which a motorized effects unit E is arranged in front of the unit L, in connection with an effects cassette C, a rotating color wheel W and again with a

Holder H with a projection lens. The lamp housing can expediently connected to the converter via nuts or sleeves threaded at both ends or via spacers that are threaded onto rear extensions of the bolts 8; and also corresponding to threaded front extensions Screw bolts are screwed onto the body of the converter.

Units E and F are preferably attached to the lamp housing by extension rods 12 that are integral with the units are connected and which protrude from them for vengeance in front and behind. The rear extensions go through the eyelets or lugs 7 on the lamp housing that are not from the screw bolts are penetrated. The upper of the two rods 12 is after at the rear longer than the other and has a snap ring 15 at its rear end, the unintentional Removal prevented by the approach 7. This arrangement allows units E and F to be pulled forward, to pull the lower rod out of the area of the lamp housing, and then the unit can be swung around the upper rod to gain access to the lamp housing to change the bulb or for any other reason.

The units can be releasably locked in their normal working positions, for example by means of a screw that extends through a threaded hole in the lower rod 12 to engage with the inner end against the inside of the groove in

to put the relevant approach 7.

The extensions of the rods 12 to the front form a storage for the holder H, which can be secured by screws 13. The flap unit B does not need any auxiliary fastenings at the front and is provided with its own mounting rods extending from extend the unit out to the rear.

7411726 07.0477

Claims (1)

t,
|| f • . C. 5
K «I U '. . Vl 'J II. 4 I |> .1 (I "^.
ν ·., ... ι 4 ,, ι ^ j
W * »». ■ J ♦ «ι ^ J / -
! i 7411726 04/07/77 "ι - 7 - ■ Β fi'ffH HÜ ¹ \ 1. Beleuohtungskötfpea: whose housing with an elliptical Reflector as well as interchangeable with facilities for attaching Additional equipment is provided in front of the reflector, thereby gekennzeic h η e t that the housing (L) also with a parabolic reflector (5) is provided, at least one of the two reflectors (4,5) can be removed from the housing (L), 2. Lighting fixture according to claim 1, characterized shows that the two reflectors (4,5) together on Housing (L) are arranged and a reflector (5) in front of the other reflector (4) and shields it. 3.Lighting body according to claim 2, characterized shows that the elliptical reflector (4) is fixed and the parabolic reflector (5) can be easily removed from the lamp housing (L is attached. 4. Lighting fixture according to one of claims 1 to 3, characterized in that for fixed attachment of additional equipment (B, F _# H, F, E, C, W) in front of the reflectors (4,5) on the housing (L) in front of _n extending and parallel to the optical axis of the reflectors (4,5) running Ver Extension rods (12) are provided.