DE102021001535A1 - desk light - Google Patents

Abstract

The invention relates to a lamp (10), in particular a desk lamp for illuminating sheet music or other objects, with at least one housing, with at least one illuminant (3) arranged in the housing, and with at least one holder (3) connected to the housing 2) for fastening the lamp (10). It is proposed that the at least one holder (2) is movably connected to the housing and has at least one magnet (8) by means of which the lamp (10) is fastened to a magnetic surface can be.

Description

State of the art

The invention relates to a desk lamp.

Previous lights for illuminating sheet music, which are attached, for example, to music stands, music stands or music holders, predominantly use a non-positive connection for attachment, for example a clamp. Many models and variants are already known and available on the market in many variants. These lights use various light sources, such as LEDs (light-emitting diodes). Their energy source is usually a battery or an accumulator. Versions with a mains connection are rarer. They also have an on/off switch, sometimes options for adjusting the brightness and light color and, in rare cases, photovoltaic modules for photoelectric charging of their energy stores. What many music lights have in common is that they have a so-called gooseneck, which is an elongated, flexible rod with the light source attached to the end, which allows it to be flexibly positioned. Another principle for illuminating notes on music stands is described in Patent DE000008307426U1 "Note lamp for a music holder". The lamp disclosed there is fastened to the music stand on the music support surface via a friction fit (clamping). It usually lights up the notes from below, has a battery, an electric on/off switch and devices to prevent unwanted glare.

Advantages of the Invention

The innovation consists of an elongated housing, for example, which can be composed of several parts. The housing can be made of a variety of materials, or a combination of different materials - aluminum and wood, for example. Energy storage, electronics, lamps and wiring are compactly accommodated in this housing. At least one recess is incorporated in the housing, in which at least one light source is seated. This lamp has suitable optics to distribute the light evenly over the notes, even though the lamp is aimed at the notes at a shallow angle. The bulbs can sit in a recess to achieve glare protection. The energy storage device can be easily charged via a USB port, for example, and has protection against overcharging, deep discharge and short circuits. In addition, its energy output is even, which means that a constant brightness of the lamps is achieved. A rotary handle or another device is attached that can be operated from the outside, with which the light can be switched on and off and its brightness can be dimmed. Furthermore, it is conceivable that the luminous color of the illuminant can be changed via switches or other devices.

In this housing there is at least one movable, pull-out device, which is magnetic and via which the innovation can be attached to magnetic surfaces such as metal music stands. This device can, for example, consist of two small arms, each of which has a magnet installed. The device can be partially or fully stowed inside the housing, so that a compact transport size is achieved. This device is used, among other things, to position the lamps in front of the lower edge of the music stand and - depending on their length - to achieve a different lighting angle for the notes. Variants are also conceivable in which the innovation has rigid, immovable devices for magnetic attachment.

Innovations of the invention compared to the prior art:

Compared to the state of the art, this invention has a special innovation through the combination of new properties. The basic size is extremely compact and it is attached using extendable brackets and magnetic forces. In addition, unlike the available music lights, the innovation is attached to the music stand from below and lights up. Furthermore, this invention has a special lens that distributes the light evenly over the sheet of music despite the flat illumination angle. The energy storage device can be charged quickly and easily via a USB connection, for example. Finally, the light sources are supplied with a regulated, constant flow of energy, which means that constant brightness can be achieved. Also new in this context is that the lamps can be cooled via the housing itself. Instead of using separate heat sinks, the lamps are attached to specially designed surfaces of the housing, e.g. the bottom of the housing. For this purpose, the surface area in the vicinity of the lamps can be increased by e.g. grooves, notches, etc. These surfaces and the housing can be obtained together from a solid material, or they can be mechanically and thermally connected to one another subsequently via a material connection, for example welding or soldering. In order for heat to be transported away from the light sources more quickly, the surface area on which the light sources are attached must be large enough.

character list

Further advantages result from the following description of the drawing. In the drawings an embodiment of the invention is shown. The drawings, the description and the claims contain numerous features in combination. The person skilled in the art will expediently also consider the features individually and combine them into further meaningful combinations.

• 1 eine erfindungsgemäße Pultleuchte an einem Notenpult,
• 2 einen Teilausschnitt des Notenpults und die erfindungsgemäße Pultleuchte,
• 3 die erfindungsgemäße Pultleuchte mit ausgefahrenen Halterungen in einer Ansicht von schräg hinten,
• 4 die erfindungsgemäße Pultleuchte mit eingefahrenen Halterungen in einer Ansicht von schräg hinten,
• 5 die erfindungsgemäße Pultleuchte mit ausgefahrenen Halterungen in einer Ansicht von schräg vorne und
• 6 die erfindungsgemäße Pultleuchte mit ausgefahrenen Halterungen in einer Ansicht von schräg unten.

Show it:

• 1 a desk lamp according to the invention on a music stand,
• 2 a partial section of the music stand and the stand light according to the invention,
• 3 the desk lamp according to the invention with the brackets extended in an oblique view from behind,
• 4 the desk lamp according to the invention with retracted brackets in an oblique view from behind,
• 5 the desk lamp according to the invention with extended brackets in an oblique view from the front and
• 6 the desk lamp according to the invention with extended brackets in an oblique view from below.

Description of the embodiment

The invention will be illustrated using an exemplary embodiment that is in the 3 until 5 shown in different views.

The exemplary embodiment consists of an elongated, partially rounded housing 1, which consists partly of wood (brown) and partly of aluminum (silver). It has two magnetic holders 2 made of aluminum, which can be taken out of the housing 1 and stowed back in it - compare top right (extended) and top left (retracted). This housing contains an energy store, two light-emitting diodes with associated optics, circuit boards for controlling the charging processes of the energy store and for the brightness of the light-emitting diodes, a switchable potentiometer and electrically insulated lines. In addition, the magnetic holders 2 can be located in the housing, for example for transport. There are two oval recesses 3 on the top of the housing, under which there are optics and LEDs. On the side facing the musicians there is a rotary switch 4 for adjusting the brightness of the lamps. On the same surface there is a recess, behind which there is a light-based display of the state of the energy storage device during a charging process. On the underside of the housing, which is made of aluminium, there is a recess 6 which accommodates a connection for the power supply to the charging board. Two further, symmetrical recesses 7, also in the underside of the housing, are used for ventilation and thus for cooling the light-emitting diodes.

Examples of possible uses:

This embodiment is particularly suitable for illuminating notes on a music stand, see . In addition, there are a number of other possible uses, some of which should be mentioned here as examples. The lamp can be used, for example, to illuminate worktops if it is attached to magnetic objects on the side or above the work area. Furthermore, this exemplary embodiment can also be placed on a horizontal surface and there illuminate cookbooks while cooking, fashion items in shop windows, walls for indirect illumination of rooms, or other items. Using an adapter, it can be attached to a bicycle handlebar as a bicycle lamp and serve as a front light. Of course, it can also simply be carried in the hand as a flashlight.

Reference List

1

Housing

2

Movable bracket/magnetic arm

3

optics and lighting

4

Rotary switch to adjust the brightness

5

Display of the state of charge of the energy storage device during charging

6

Recess for voltage connection to charge the energy storage device

7

ventilation opening

8th

magnet

10

lamp

12

teacher's desk

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited by the applicant was 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.

Patent Literature Cited

• DE 000008307426 U1 [0002]

Claims (10)

Lamp (10), in particular a desk lamp for illuminating sheet music or other objects, having at least one housing (1), having at least one lighting means (3) arranged in the housing (1), and having at least one lamp (3) connected to the housing (1) connected holder (2) for fastening the lamp (10), characterized in that the at least one holder (2) is movably connected to the housing (1) and has at least one magnet (8), by means of which the lamp (10) can be attached to a magnetic surface. Shine (10) after claim 1 , characterized in that the housing (1) has at least one receiving area for at least substantially complete receiving of the at least one holder (2), into which the at least one holder (2) can be moved, in particular pivoted, for transport. Shine (10) after claim 1 or 2 , characterized in that the housing (1) has at least a first housing part and a second housing part, the at least one lamp (3) being arranged directly on the second housing part and the second housing part forming a heat sink for the at least one lamp (3). Shine (10) after claim 3 , characterized in that the second housing part consists of a metallic material and forms at least one outside of the housing (1). Lamp (10) according to one of the preceding claims, characterized by a controller, in particular a rotary switch (4), for setting the brightness of the at least one lamp (3). Lamp (10) according to one of the preceding claims, characterized by optics arranged in a beam path of the lamp (3) for uniform illumination of the illuminated objects, in particular despite a flat illumination angle. Lamp (10) according to one of the preceding claims, characterized in that the housing (1) has at least one recess on an upper side, which is provided for an exit of a beam path of the lighting means (3). Lamp (10) according to one of the preceding claims, characterized in that the at least one lighting means (3) is provided for upward emission. System with a desk (12), in particular a music desk, and with a light (10) according to one of the preceding claims, wherein the light (10) is arranged below a mount, in particular a music mount. system after claim 9 , characterized in that the lamp (10) is connected to the desk (12) by means of the magnet (8).

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