RU1835477C - Lamp having transformable optic system - Google Patents

Abstract

Usage: in industrial, street and signal lights. SUBSTANCE: diffuser is formed of glass petals-segments 4 and a rigid frame 5, tightened by the upper ends with a clamping elastic nut 6, and the lower ends abutting in a conical socket 7 and interacting with the spring. 2 s.p. f-ly, 6 ill. 00 s SL -N VI

Description

The invention relates to the field of lighting engineering and can be used in outdoor lighting fixtures, for signaling and for lighting industrial facilities.

The purpose of the invention is to increase reliability, improve performance and expand the scope.

Figure 1 shows a General view of the lamp; Fig. 2 is a general view of a luminaire with an open segment, for example, for replacing a light source; Fig. 3 is a diagram illustrating illumination of a vertical surface in the case of using one segment-lobe with a reflective coating: Fig. 4 shows light distribution curves (directional, in plan) in the case of using segments with prismatic optics; figure 5 is a view A along the arrow in figure 1; figure 6 is a section bB in figure 1.

The luminaire consists of a base 1, on which an electric cartridge 2 with a light source 3 and a diffuser composed of separate glass, vertically oriented, convex translucent leaf-flaps 4 are mounted, and the petals are made in the form of segments, the upper ends of which are arranged in a single diffuser on a rigidly fixed frame 5 with a clamping elastic element in the form of a nut 6, and the lower ends abut against a conical socket 7 provided with a spring 8. A sector cut-out a is made on the clamping elastic nut 6, equal in width to The top edge of the petal segment.

The luminaire is assembled as follows.,.

The glass petals segments 4 are mounted in a conical socket 7, while the lower edge of the segment 4 is gripped by a spring 8 and is held in weight. The mechanical fixing frame 5 is rigidly connected at the bottom with the conical socket 7, and at the top with the base 1, on which the elastic nut 6 is screwed. To assemble the diffuser, the tops of the segments 4 are tightened together with the widened lower part of the elastic nut 6. As an option seals, the frame 5 can be fitted with an elastic, for example, a rubber tube, tightening (sealing) joints between the glass-petals. The conical seat can also be sealed.

To replace the light source, it is enough to unscrew the elastic nut 6 up, install a cut-out (Fig. 5) against the top of segment 4, while segment 4 moves.

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5

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5

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for example, to the right (FIG. 2), as shown by arrows, and spring 8 holds segment 4 by the edge of the inner protrusion. Cutout a in nut 6 allows you to tilt no more than one lobe segment 4 at a time.

If one of the petal segments 4 is coated from the inside with a reflective layer (e.g. aluminizing in vacuum), a luminaire with asymmetric lateral light distribution (Fig. 3) is obtained for illuminating vertical surfaces.

If instead of smooth transparent glasses we use pressed segments 4 with a refracting layer for the petals, we get a lamp with a given multidirectional light distribution

l f (.a),.;

where I is the power of light, candela;

a - angle of measurement of luminous intensity, degrees.

If transparent colored glass is used for the petal segments 4, a luminaire for light signaling is obtained.

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Claims (1)

The claims 1, A luminaire with a transformable optical system, comprising a base on which a lampholder with a light source and a diffuser are mounted, consisting of individual leaf-flaps covered by a clamping elastic element, which, in order to increase reliability, To improve operational properties and expand the scope of application, the petals are made in the form of glass, vertically oriented, convex translucent segments that are pulled together into a single diffuser on a rigidly fixed frame with a clamping elastic th element in the form of a nut, covering the tops of the segments, with the emphasis of the lower part of the segments in a conical socket,  equipped with a spring interacting with the lower edges of the petal segments, and a sector cut is made on the clamping elastic nut equal in width to the upper edge of the petal segment. 2, The luminaire according to claim 1, characterized in that the reflective coating or reflective prismatic layer is applied to the inner surface of one or more segments of the petals. 3, The luminaire according to claim 1, wherein the lobe segments are made of colored glass for the purpose of being used for light signaling. LLtrswi Fig. B -Visa 6 FIG. 5 mi " Phage 6