DE102011014615A1 - Bulkhead light for partial partitioning of light of outdoor lamp, particularly streetlight or garden lamp, from entering living area with blinds, has element designed as polarization filter and is mounted front of outdoor lamp - Google Patents

Abstract

The bulkhead light has an element designed as a polarization filter (A) and is mounted front of an outdoor lamp (2), in an optical path (2.1) of the outdoor lamp. Another element is designed as another polarization filter (B), which is stationary in the region of a window (3.1) of a living area (3), where the window is mounted in the beam path of the outdoor lamp. The former polarization filter mounted on a disk of the outdoor lamp has a flat, cylindrical or curved shape, while the latter polarization filter has a flat or curved shape and is mounted on a window pane (3.2) of the window. An independent claim is provided for a method for partial partitioning of light, particularly from outdoor lamp.

Description

The invention relates to a light bulkhead for at least partially shielding the light of an outdoor lamp such as a street lamp or a garden lamp against entry into a living space, comprising at least one element influencing the beam path.

Furthermore, the invention relates to a method for at least partially shielding the light of an outdoor lamp, such as a street lamp or garden lamp.

Beyond the scope of photography is already the use of polarizing filters from the DE 23 59 833 C3 for sighting devices known. The polarization filters described therein at least serve to partially block off light entering the grain tunnel.

The invention has for its object to position a polarizing filter such that different levels of foreclosure of light one and the same light source is ensured by different observers.

The object is achieved by a light barrier, comprising a first element, which is designed as a polarizing filter A, which is mounted in front of the outdoor lamp in a beam path of the outdoor lamp and / or a second element, which is designed as a polarizing filter B, the stationary in Area of a window or privacy of a living room or lounge, such as a room, a conservatory or a balcony in a beam path of the outdoor light is attached.

The object is achieved according to the invention by a method by which a polarizing filter A is mounted in front of an outdoor lamp, a downstream in the beam path of the outdoor lamp polarization filter B in the area of any window or privacy of a living room or lounge as a room, a conservatory or a Terrace is mounted and both polarizing filters A and B are aligned with respect to their filtering effect to each other so that the light emitted by the outdoor light light is at least partially sealed off before entering the living room.

Especially with the example of street lamps or the garden lighting of neighbors, the advantages of the invention are well explained. Street lights and their illumination are important in the dark. Since the light of these street lamps standing on the roadside illuminates not only the street but also the living spaces of adjoining houses, it has hitherto been customary to provide the streetlight with a glare shield such as, for example, a metal sheet or the like, and thus at least partially seal it off. However, this foreclosure can only be done to the side that is averted the street or sidewalk to be illuminated. So the page, which is related to the street lamp opposite the street or the sidewalk. Because the illumination of the road itself must be guaranteed. Thus, an illumination of the living spaces, which lie on the side of the street lamp facing the street, that is to say those which lie opposite the street lantern with respect to the street, can not be prevented.

By using the light block according to the invention or its attachment to an outdoor lamp or a window is achieved that each resident can individually or completely isolate the incident in his living room light of the street lamp, without foreclosing the remaining light that is reflected from the environment or hide. This is a major benefit both in the dark and in the daytime. In the dark, only the light actively radiated by the street lamp and incident into the living space is effectively sealed off, while the light reflected from the surroundings can be observed. During the day it behaves similarly, the difference to the variant without inventive Lichtschott is less large. The incidence of daylight from the environment is ensured except for the part of the street lamp which, when switched on, forms the luminous zone. The scene recognizable by the observer thus almost corresponds to that without a light barrier. Thus, the observer can see the surroundings in the dark, and especially during the day, d. H. The reflected light from the environment falls as usual in the living room. Thus, the brightness in the living room at daybreak increases with increasing daylight as usual, which is not the case in the case of the use of known light barriers such as roller blinds or curtains.

The arranged on the outdoor light polarizing filter A and the outdoor lamp with polarizing filter A ensures each resident an individual foreclosure of light by attaching an individual polarizing filter B at his window. The polarization filter A is mounted in a beam path of the outdoor lamp in such a way that a polarization filter B can be arbitrarily brought into the beam path between the polarization filter A and the resident or observer located in the living space and thus various residential spaces can be individually partitioned off. The polarization filter A is preferably located at a distance of not more than 1 m to the outdoor light and has, for example, a size of at least 5 cm ² . Significantly larger than the luminous zone of the outdoor luminaire, the polarizing filter A must not be there. The final size of the polarizing filter A ultimately depends on the size of the luminous zone to be sealed off and the distance to the luminous zone. In principle, the entire light zone of the outdoor light can be provided with the polarization filter A or sealed off, since the partitioning is done only in combination with the polarization filter B, so that the basic illumination is not affected by the outdoor light initially.

The arranged at the window polarization filter B or the window or privacy with polarizing filter B ensures each resident an individual foreclosure of the polarized light of an outdoor lamp. The polarization filter B is arranged in the beam path of the light of the outdoor lamp between the provided with the polarization filter A outdoor light and the living room, so that the light of the outdoor lamp by means of the polarization filter B is individually abgeschottd.

With the application of both polarizing filters A, B, a light partition to be individually designed according to placement, size and effect in the beam path of the light of the outdoor light between the outdoor light and the observer can be realized.

Of course, the observer could provide a foreclosure of the incident light of the street lamp also by a conventional screen, such as a roller blind or a curtain. In this case, however, there would be a much greater darkening of the living space during the night. A perception of the nocturnal environment would be completely prevented. On the other hand, the room would remain dimmed until the observer actively or automatically removes the darkening. This is only associated with increased expenditure of technology, costs and a disturbing at least the sound background noise.

Due to the polarizing filters available so far, it is the application of the same in detail, so not paired, only a small foreclosure of light, as is the case with a very brightly colored sunglasses. This corresponds to a transmittance of about 40%.

If an attachment of the polarizing filter A to the outdoor light is not possible because the owner or the owner does not want this, then the possibility remains, the polarization filter A with sufficient distance to the outdoor lamp on the one hand and to the window on the other hand, for example, in the form of a Viewing guard. It must be ensured that the window is not in the direct beam path of the outdoor lamp, thus lying in the light shadow of the polarizing filter A. The polarization filter B can then be placed directly on the window as intended. Also in this case the environment is perceptible by the observer.

It may be advantageous for this purpose if the polarizing filter A has a flat or cylindrical or curved shape and is attached to the outdoor lamp. When the shape of the polarizing filter A is formed in the shape of the outdoor lamp or its luminous zone, efficient partitioning using a minimally large polarizing filter A is possible.

For this purpose, it may be advantageous if the polarization filter A is attached to a window of the outdoor lamp. The disk usually has a sufficient distance to the lamp itself, so that the temperature of the disk does not rise excessively in operation. It is also possible to use the holding means of the disk for fixing the polarization filter A.

It may also be advantageous if the polarizing filter B has a flat or curved shape and is attached to the window. Advantageously, the polarization filter B has a shape corresponding to the window or privacy protection flat, so that it can be attached to or in front of the window. This can be done by using a frame in which the polarizing filter B is gripped, the frame being fixed to the window by adhesives, screws or suction cups. Alternatively, the polarizing filter B can also be mounted directly via the aforementioned fastening means.

It may be advantageously provided that the polarizing filter B is attached to a window of the window. This would be advantageous when using Saugnäpfen, as they hold best on the smooth disk. This would also a minimum of construction costs achieved and the installation as a whole inconspicuous than a mounting on the window frame.

Of particular importance may be for the present invention, when the polarizing filter A and / or B is formed as a polarizing film and optionally has an adhesive layer. Currently available are polarizing filters with a film thickness of 0.3 mm and 0.8 mm. This allows the polarizing filter to be adapted to the shape of the outdoor light or the window. With the adhesive layer, the polarizing filter could be very easily attached or attached to the exterior light or to the window or the respective pane.

In connection with the design and arrangement according to the invention, it may be advantageous if the polarizing filter is glued to the disc. This prevents a gap between the polarizing filter and the disc in which moisture or condensate and / or dirt such as insects and the like could collect.

It may also be advantageous if the polarization filter is formed as an integral part of the disc. This would ensure the longevity of the respective light bulkhead on the one hand and a minimum of installation effort on the outdoor light or on the window on the other hand.

Further advantages and details of the invention are explained in the patent claims and in the description and illustrated in the figures. Show it:

1 Effect at night;

2 Mode of action during the day;

3 alternative placement of the polarizing filter;

4a Embodiments of the polarizing filter

4b alternative embodiments of the polarization filter.

A light 2.1 a street lamp 2 At night, it radiates around the surroundings as well as into one or the other window 3.1 a living space 3 ,

The street lamp 2 is on your window 3.1 facing side provided with a polarizing filter A, so that this in the beam path 2.1 the actively lit street lamp 2 is arranged. Depending on the width or circumference of the polarization filter A to 4a . 4b is the window 3.1 and at least part of the environment 5 like the cat 5 in the passing through the polarizing filter A beam path of the street lamp 2 , This becomes part of the environment 5 illuminated, leaving an observer 1a the environment 5 illuminated perceives. For other light sources 5 the environment like the moon is equivalent.

At the window 3.1 or on a disc 3.2 of the window 3.1 To illustrate the mode of operation, for example, only the lower half is provided with a polarization filter B which, with respect to its filter effect, is offset by 90 ° relative to the polarization filter A.

A standing observer 1a passing through the windowpane 3.2 without polarization filter B looks, sees the nocturnal environment 5 including the street lamp 2 , in particular a lighting zone 2.3 same because he is in the beam path 2.1 the actively lit street lamp 2 which is only filtered by the polarization filter A, thus not sealed off.

An example lying observer 1b passing through the lower part of the windowpane 3.2 looks with polarizing filter B, also sees the nocturnal environment 5 , Only the street lamp 2 or the illuminated zone 2.3 the same is hidden or isolated for him because he is in the ray path 2.1 the actively lit street lamp 2 which is filtered by the polarizing filter A and the polarizing filter B, is thus sealed off. The light entry into the living room 3 is around this originally directly incident light of the luminous zone 2.3 reduced.

According to the embodiment 2 regarding the effect of the day is the entire disc 3.2 of the window 3.1 provided with the polarization filter B. The in the living room 3 present observers 1a takes the daylight environment 5 like cat 5 , Sun 5 and the relevant part 5 the street lamp 2 true, because of the environment 5 reflected or radiated and through the window 3.1 passing light filtered only by the polarizing filter B, thus not abgeschottet.

Only the light zone 2.3 the street lamp 2 is hidden because of this ray path 2.1 filtered by the polarization filter A and the polarization filter B and is sealed off due to the relative angular position of the two polarizing filters A, B.

After embodiment 3 is the polarizing filter A at a greater distance b to a garden light 2 , for example in the area of the property boundary at a garden fence 6 , The polarization filter A is slightly larger, so that the window 3.1 is completely covered by its light shadow A1. Thus, the observer 1a by applying a polarizing filter B to the window 3.1 the living space 3 Shut off or darken as required.

To 4a is the disc 2.2 an outdoor light 2 formed cylindrical, wherein the polarization filter A has a partially cylindrical shape. The polarization filter A covers only a partial circumference of the disc 2.2 from. On the polarizing filter A is an adhesive layer 4 provided that attaching to the disc 2.2 guaranteed.

To 4b the polarizing filter A is also cylindrical and surrounds the disc 2.2 Completely. The polarization filter A has as well as in 4a the same height h as the disc 2.2 ,

The two polarizing filters A, B can with respect to their angular position to each other, thus aligned their arbitrary filter effect so that different degrees of isolation can be ensured steplessly. For maximum isolation, both polarization filters A, B must be arranged at 90 ° to each other with respect to their angular position.

LIST OF REFERENCE NUMBERS

1a

Observer, eye

1b

Observer, eye

2

Outdoor light, street lamp, garden light

2.1

Light, beam path

2.2

Slice of 2

2.3

luminous zone

3

Living room, lounge, terrace, balcony

3.1

Window, privacy

3.2

windowpane

4

adhesive layer

5

Environment, light source, cat, tree

6

garden fence

A

polarizing filter

A1

light shadow

B

polarizing filter

b

distance

H

height

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 2359833 C3 [0003]

Claims (10)

Lichtschott for at least partial Abschotten of light ( 2.1 ) an outdoor light ( 2 ) against entry into a living space ( 3 ), comprising at least one the beam path ( 2.1 ) influencing element, characterized in that a) a first element is provided, which is designed as a polarizing filter A, the stationary in front of the outdoor lamp ( 2 ) in the beam path ( 2.1 ) of the outdoor light ( 2 ) and / or b) a second element is provided which is designed as a polarization filter B which is stationary in the region of a window ( 3.1 ) of a living space ( 3 ) in the beam path ( 2.1 ) of the outdoor light ( 2 ) is attached. Light barrier according to claim 1, characterized in that the polarizing filter A has a flat or cylindrical or curved shape and on the outdoor light ( 2 ) is attached. Light barrier according to claim 1 or 2, characterized in that the polarization filter A on a disc ( 2.2 ) of the outdoor light ( 2 ) is attached. Light barrier according to one of the preceding claims, characterized in that the polarization filter B has a flat or curved shape and on the window ( 3.1 ) is attached. Light barrier according to one of the preceding claims, characterized in that the polarization filter B on a window pane ( 3.2 ) of the window ( 3.1 ) is attached. Light barrier according to one of the preceding claims, characterized in that the polarization filter is designed as a polarizing film and optionally an adhesive layer ( 4 ) or that the polarizing filter on the disc ( 2.2 . 3.2 ) or that the polarizing filter as an integral part of the disc ( 2.2 . 3.2 ) is trained. Use of a light barrier according to claim 1 for polarizing light ( 2.1 ) an outdoor light ( 2 ) for at least partially sealing off a living space ( 3 ) against polarized light ( 2.1 ) an outdoor light ( 2 ) and / or to seal off a living space ( 3 ) against light ( 2.1 ) an outdoor light ( 2 ). Method for at least partial sealing of light ( 2.1 ) an outdoor light ( 2 ), characterized in that a) a polarizing filter A in front of the outdoor light ( 2 ), b) one in the beam path ( 2.1 ) of the outdoor light ( 2 ) downstream polarization filter B in the region of any window ( 3.1 ) of a living space ( 3 ) is mounted, c) both polarizing filters A and B are aligned with respect to their filtering effect to each other, that of the outdoor lamp ( 2 ) emitted light ( 2.1 ) before entering the living room ( 3 ) is at least partially sealed off. Outdoor light ( 2 ) with a light barrier according to claim 1, para. a). Privacy protection ( 3.1 ) or windows ( 3.1 ) with a light barrier according to claim 1, para. b).

Images