DE8316218U1 - INTERIOR LAMP FOR A HIGH PRESSURE LAMP - Google Patents

Description

FH 83/1 - 3 -

"Interior light for a high pressure lamp"

The innovation concerns an interior light for a high pressure lamp with clear glass bulb, preferably in the form of a festoon, and with a reflector arrangement.

High-pressure lamps with large luminous flux are mainly used

used in outdoor luminaires or used for hall lighting

puts. For the lighting of offices and the like also find ■

such lamps of lower power despite high luminous efficacy,

and excellent color rendering properties due to their j

large, approximately punctiform luminance is hardly used. f

It is the task of the innovation to provide a luminaire for equipping ■;

to create with a high pressure lamp, especially for loading 1

lighting for offices that are highly efficient - |

on the one hand for general room lighting and at the same time I

Can be used for direct lighting of work surfaces |

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This object is achieved according to the invention by an, for example, wedge-shaped, frame-like housing with a mirror reflector running in the longitudinal direction of the housing, parabolically curved in cross-section s and merging into a serade i toward the wedge tip, which mirrors the mirror reflector in the longitudinal direction | comprises achsparailei arranged, located in its focal line \ high-pressure lamp and an obliquely radiating light conditions \ distribution in the ceiling area above the luminaire has, f so-like with a bottom reflector, which also has an obliquely radiating light distribution and both sides of a lower. half the high-pressure lamp recessed in the mirror reflector
opening is arranged to i directional radiation of a part of the \ of the high-pressure lamp outgoing light on a work surface. i

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FH 83/1

The interior light according to the innovation is advantageous in that it is in the area between the ceiling and the floor, for example can be attached to a desk and indirectly illuminates the lighting by illuminating the ceiling Takes over the space and at the same time shines directly on the desk surface. This allows the usual ceiling lighting can be reduced to a minimum. Developments and advantageous refinements of the innovation are objects of the subclaims.

The innovation is explained in more detail below with the aid of the drawing.

Fig. 1 shows a cross section through the lamp, while in Fig. 2 a view from below in the direction of the drawn Arrow A is shown.

The lamp has a, for example, wedge-shaped housing 1, which is held on its broad side 1 a by means of a support arm 2. A high pressure lamp 3, preferably with a clear glass bulb and in a festoon shape, is held between sockets 4 parallel to the wedge tip 1b of the housing. To the Hociidrucklampe is a parabolically curved, a straight line extending in the longitudinal housing direction SpiegelrefIektor 5 reasonable ί assigns having an obliquely radiating light distribution curve due to its shape and the light in the ceiling \ area (arrow B) selectively radiates upward. ¹ y

Below the high pressure lamp there is an opening 5a on part 1 of its length in the mirror reflector. This is \ surrounded by a lower reflector 6, which is reflected by the high! Pressure lamp also directs light passing through the opening in an oblique beam counter to the direction of arrow A onto a work surface, for example a desk surface. In addition, a masking device can be installed in the opening.

FH 83/1

device 7, for example a diaphragm or a gray wedge, be arranged. This allows the illuminance on the work surface to be changed individually. The lower opening of the frame-like housing is also closed by means of a glass pane 8 as a UV filter. An additional
Blinds allow »to influence the direction of light and glare.

With the luminaire, on the one hand, indirect lighting of the working level is achieved via the ceiling and, on the other hand, around 10 to 20 % of the light emitted by the high-pressure lamp is emitted directly down onto the working level.

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Claims (7)

· · · · ■■ M • ι Licentia Patent-Verwaltungs-GmbH 6000 Frankfurt 70, Theodor-Stern-Kai 1 FH 83/1 May 30, 1983 spa-wö claims for protection: 1. Interior light :; for a high pressure lamp with clear glass bulb, preferably in the form of a festoon, and with a reflector arrangement, characterized by an example wedge-shaped, frame-like housing (1) with a parabolic curved cross-section running in the longitudinal direction of the housing and towards the wedge tip (1b) towards a straight line upper mirror reflector (5), which is arranged axially parallel in the longitudinal direction, includes high pressure lamp (3) located in its focal line and an oblique light distribution in the Ceiling area (arrow B) above the lamp, as well as with a lower reflector (6), which also has a has oblique light distribution, and on both sides an opening (5a) recessed below the high-pressure lamp (3) in the mirror reflector (5) for directed radiation part of the light emanating from the high-pressure lamp (3) onto a work surface (opposite Arrow A) is arranged. FH 83/1 - 2 - 2. Interior light according to claim 1, characterized in that the opening (5a) in the upper mirror reflector (5) a size for the passage of about 10 to 20% of the has light emitted by the high pressure lamp (3). 3. Interior light according to claim 1 and 2, characterized in that that the light passage surface of the opening (5a) is provided with shielding means (7). 4. Interior light according to claim 3, characterized in that I that the dimming means (7) are designed as a blind. I. 5. Interior light according to claim 3, characterized in that jf that the screening means (7) are designed as a diaphragm. ΐ 6. Interior light according to claim 3 _S, characterized in that '; that a gray wedge is arranged in the light exit surface i i ^st \ 7. Interior light according to claim 1 to 6, characterized-ί draws that the bottom of the case with a i Glass pane (8) as a UV filter and / or a blind is provided. * * Λ 11 * 1 ι ι ti ** · 'i * * ί III ♦ * I * if * * ·· ■ · It * # ί