DE8603984U1 - Light pointer for a railway signal box - Google Patents

Description

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Siemens Aktiengesellschaft Our mark

Berlin and Munich VPA 86 G 2 9 O 5 DE

Light pointer for a railway signal box

The innovation concerns a light pointer for a railway signal box, with at least one schematic representation of the outdoor facility.

In the case of extensive track diagram interlockings, especially in the case of central interlockings, the additional events can be caused by the the respective dispatcher can only be monitored with sufficient security with considerable difficulty, because a control and monitoring board in front of the dispatcher is considerably larger. This control and monitoring board carries the signal and track systems in a schematic representation and can additional information about the respective free and Show the occupied state by appropriate illumination of the relevant picture elements. The schematic Representation and the most varied of picture elements can be done on large panorama boards. Using of Videc projectors and assuming that these are quite large-scale systems, the Plant ^ complex composed of several partial images on a projection screen.

If now with such representations additional optisehe If markings are to be made, a large number of light pointers are required, which are extensive require electronic control and complex mechanics.

The innovation is therefore based on the task of creating a Light pointer for a railway signal box of the above

HSH-6-Jas / 02/11/86

• ail *

-2- VPA 86G2905DE

To create a way that allows, without great effort,
to provide a large number of light points that can be varied in their position * _t ,

According to the innovation, this object is achieved by a projection device which, in the course of the rays, essentially consists of a light source, a condenser, a
Heat protection filter, an electronically controllable mask
and a lens. Preferably, ^ electronically controllable masks in LCD technology are einge- i

that have a red-green-blue grid. One of the- | like light pointer advantageously offers different colored light points. |

An embodiment of the innovation is shown in the drawing \

and is briefly described below. ; The illustration shows schematically a light pointer in the form of a projection device with a light source 1.
In the beam path from left to right there is a con

Arranged densor 2, which is followed by a heat protection filter 3.
Provided that colored light points are to be generated, a color filter 4 is provided in the beam path. This is followed by an electronic one
controllable mask 5. This has the task of one or \

to release several points of light, which via a lens 6 f

on a projection screen not shown

long. f

The color filter 4 can be dispensed with if |

an electrically controllable mask 5 is provided, ' their light entry opening 51 or their light exit opening 52 is colored.

3 claims for protection
1 figure
35

Claims (3)

-3- VPA 86 G 2 9 O 5 DE claims for protection 1. Light pointer for a railway interlocking system, in which at least one schematic representation of the outdoor system takes place, characterized by a projection device, which in the beam path essentially consists of a light source (1), a condenser (2) , j a heat protection filter (3), an electronically controllable Mask (5) and an objective (6) consists. 10 2. Device according to claim 1, characterized that between the heat protection filter (3) and the electronically controllable mask (5) a color filter (4) is arranged. 3. Device according to claim 1, characterized An electrically controllable mask (5) with a colored light inlet or light outlet opening (51 or 52).