DD214576A1 - WARNING LIGHT WITH ROTATION COLOR REFLECTOR AND LIGHT CURRENT LUMINAIRES - Google Patents

Abstract

The invention relates to a warning light with rotationally parabolic reflector and single lamps for Lichtrundumstrahlung. The object of the invention is a universal applicability of the lamp for all-round protection with minimal use of components without moving elements and the same ooptic appearance as a rotating beacon. By using the combination of a rotationally parabolic reflector with several individual lamps, the generation of short, clearly visible flashes of light for all-round protection is to be guaranteed. The object is achieved according to the invention in that a rotationally parabolic reflector is surrounded by a plurality of individual lamps driven in a local order by means of a periodic pulse generator, the location of the focal line of the reflector coinciding with the location of the individual lamps. Fields of application of the invention are known as warning devices at danger points and in special road users. It is also conceivable to achieve decorative effects in lighting fixtures.

Description

Title of the invention

Warning light with rotation parabolic reflector and single lamps for Lichtrundumabstrahlung

Field of application of the invention

^w The invention relates to an optical warning device zui labeling of hazard and restricted areas as well as special requirements carriers, in particular in road traffic. Furthermore, this luminaire construction can be used to achieve special light-emitting effects for general lighting tasks «

Characteristic of the known technical solutions

There are known basic warning devices for the identification of such danger spots. They are based on the use of beacons at the borders, the danger area or the application of special warning lights that emit a pulsating flash of light. These arrangements have several disadvantages that do not make sense of a use. Due to the use of powerful incandescent lamps, rotating beacons, usually in halogen design, when working in continuous operation are relatively power-intensive.

2 4-. ItRl 1983 * 0 * 8046

A minimization of the borrowing requirement usually occurs when pulsating warning lights are used. These warning lights are usually constructed similar headlights and radiate their light strongly depending on the direction in only one preferred direction. As light sources they have, for example, photo flash lamps, which make special demands on the dielectric strength of the overall structure. When securing the danger spot in several directions, a large number of warning lights must be set up and operated.

In DD-WP 137 287 G 08 B 5/38 is trying to eliminate the last drawback by a specially shaped reflector with multiple openings. However, this arrangement produces a rotating light with different intensity according to the reflector breakages _#

Another possibility for achieving the all-round radiation in a preferred plane consists in forming the light-permeable housing as a circulating collection lens system,

In the DD-WP 150 557 B 60 Q 1/50 - warning light with directional Lichtrundumabstrahlung - this possibility is described «

However, the light intensity of this arrangement is sufficient for technical use only when using extremely bright larapae.

The use of a arranged under and over the light source rotationally symmetric parabolic reflector also produces a Lichtrundumabstrahlung. However, the amount of scattered light of this lamp is too high.

URL 1983 * 078046

This is mainly caused by the light source, which must be adjusted at the focus of both reflectors. Otherwise, the structure of this system results in unfavorable spatial relationships relative to the effective reflector surface. Further principles of action consist in the combination of a parabolic reflector with a cone mirror (DE-OS 2 255 619 P 21 Q 3/02, DE-OS 2 327 P 21 Q 3/02) and a rotationally parabolic reflector with a ring lamp. These arrangements generate intense flashes of light in the entire horizontal lamp plane, but without the typical light pattern of a rotating beacon.

Object of the invention

The object of the invention is a universally applicable warning light for securing danger spots and specially marked vehicles, which can be easily and inexpensively manufactured and guaranteed all-round protection in construction without moving components. The aim is to guarantee the typical rising and falling light intensity curve of a rotating beacon.

Explanation of the essence of the invention

The invention has for its object to develop a warning light, which has a similar appearance * - like the rotating beacon, is operated due to the circuit in impulse mode with a power minimum and has no moving parts with reasonable component cost.

Furthermore, the scattered light component should be minimized outside the horizontal light emission plane and the geometric conditions should be improved.

By using the combination of a rotationally parabolic reflector with several periodically controlled individual lamps, the generation of a light image is to be guaranteed analogous to a mechanically controlled rotating beacon. The object is achieved in that a rotationally parabolic reflector is surrounded by several in a local order via a periodic pulse generator driven individual lamps, the location of the focal line of the reflector coincides with the location of the individual lamps.

embodiment

The invention will be explained below using an exemplary embodiment. 1 shows the spatial representation of the optical functional elements and a possible arrangement of the required switching element. The rotationally parabolic reflector is surrounded by η individual lamps 2. The mounting location of the individual lamps 2 is identical to the course of the focal line 3 of the rotationally-parabolic reflector 1. The individual lamps 2 are connected in an orderly order with the η - outputs of the periodic pulse generator 4.

When commissioning the periodic pulse generator 4 can be constructed on the basis of a ring counter, the individual lamps are controlled according to a predetermined scheme.

Figure 2 shows a variant in which the lamps 1 to η are driven individually in a locally progressive order. They produce flashes of light which cause a circumferential impression similar to a rotating beacon. In this case, the light beam path 5 is given in the horizontal plane.

Turning on the individual lamps of Figure 3 causes a temporal extension of the light beam with the same overall circumferential impression of the optical device.

Claims (3)

- 6 invention openings 1 «Rotating parabolic reflector warning lights and individual lamps for Lichtrundumabsicherung, characterized in that a rotationally parabolic reflector (1) surrounded by a plurality of locally in sequence on a periodic pulse generator (4) driven individual lamps (2) jj where the location of Brennpunlrtlinie (3) of the reflector (1) matches the location of the individual lamps (2) « 2 · Warning lamps according to item 1, characterized in that the individual lamp (2) is preferably arranged in the sectors of the main warning direction « 3 «warning light according to item 1, characterized in that the focal line (3) of the reflector (1) and the focal position (3) of the individual lamps (2) to achieve a higher proportion of scattered light slightly different from each other. "For this 2 pages drawings"