DE102008053624A1 - Lamp / ECG system with defined operating parameters - Google Patents

Abstract

Disclosed is a lighting system with at least one lamp and at least one electronic ballast operating the at least one lamp, wherein at least one communication unit connectable to the electronic ballast is adapted to communicate at least one production-specific lamp parameter to the electronic ballast, and the electronic ballast has a control unit , which is designed to control the electronic ballast such that the lamp parameter communicated by the communication unit has a defined value or is within a defined value range, and such a communication unit and a method for operating such a lighting system.

Description

Technical area

This The invention relates to a lighting system with at least one lamp and at least one of the at least one lamp operating electronic Ballast and a method for operating such Lighting system, the lamp with a customized Lamp parameter is operated.

State of the art

at highly specified lighting systems, especially in the medical field Range of surgical microscopes or endoscopes, is providing a certain luminous flux or a specific luminance essential to optimal operation of the lighting system guarantee. Such lighting systems exist in usually an electronic ballast and a lamp connectable to the electronic ballast, wherein preferably short arc discharge lamps are used.

Around the light emitted from the discharge arc into a light guide for example, from an endoscope or generally light in a certain direction, can around the glass bulb Reflector be arranged.

In spite of given rated power of the lamp, the luminous flux or the Luminance of the light emitted by the lamp considerably vary. For example, the scattering of the luminous flux at a conventional xenon short arc discharge lamp with a Rated power of 180 W in the range of +/- 30% or higher lie.

Around however, to produce lamps with smaller deviations, because you are at the limit of the technically feasible, other solutions being found. So far, therefore, the lamps are after production measured and only the proportion of lamps used, the required Corresponds to parameters. This procedure or a possible Increase sorting according to so-called performance classes the production costs are unnecessary.

In the prior art, the CA 2325304 It has therefore been proposed to monitor the operating parameters of the lamps during operation and to adjust them accordingly in order to create constantly optimum operating conditions. For this purpose, a sensor with a memory attached to the lamp, which determines the operating parameters, in particular the temperature of the lamp, and transmits to a lamp operating device.

adversely However, in this known solution is also that the Lamps dependent on individual lamp parameters, in particular Luminous flux or luminance at a given rated power, differences that are manufacturing and not operational, so that Also in this case, a sorting in performance classes needed would be to meet the increased market demands. This sorting and the associated reject rate result in a significant increase in costs.

Presentation of the invention

task Therefore, it is an illumination system with at least one lamp and at least one electronic ballast (ECG) and a method for operating such a lighting system to provide, with the lamps of other performance classes meet the requirements of the market.

These Task is solved by the use of at least one Communication unit that is designed to at least one Production-specific lamp parameters to the at least one ECG to submit, and at least one control unit, the is designed to control the at least one electronic ballast in such a way that the lamp parameter communicated by the communication unit has a certain value or in a certain value range lies.

As a production-specific lamp parameters in particular the release of a defined luminous flux for a given nominal power is to be mentioned. For example, in surgical lights or En doskoplampen certain luminous powers are met. For this purpose, in the production of such lamps in a last manufacturing step, the luminous flux of the lamp is measured or controlled by a predetermined aperture, for example of 3 mm.

there the communication unit is designed to be connectable to the TOE to be. Such a connection can advantageously over a line or a contact made.

Of the from the communication unit to the TOE communicated production-specific Lamp parameter is preferably before a arranged in the ECG control unit issued, which is designed to control the ECG.

there can the communication unit according to the invention continue to be designed so that the production-specific lamp parameters can be stored in the communication unit.

In In another embodiment, the communication unit designed as a variable resistor, in particular as a potentiometer, wherein the communication unit or in this case the variable Resistor can be arranged directly on the lamp. However, it is also possible that the potentiometer or the variable Resistor is arranged in a separate unit.

at a production-related remeasurement of the lamp can then be dependent of the measured values, the variable resistor is set in this way that the electronic ballast is caused to dim or the lamp to increase the luminous flux of the lamp.

In In another embodiment, the communication unit provided by connecting lines by means of jumpers be that the lamp their production-specific lamp parameters to the TOE.

there is particularly preferred when not in multi-pole lamps Power supply required lines connected by jumpers become.

In Another embodiment is a five-pole Plug of a lamp used in which two poles or lines be used for the power supply, currency rend the three remaining unused lines by means of jumpers can be connected in such a way that five different Lamp parameter states transmitted to the TOE can be. For a production-side or customer-specific final measurement The lamps can be set according to these jumpers.

In a further advantageous embodiment is the Communication unit designed as an integrated circuit. In this type of training can be operating parameters be stored on the integrated circuit and of the ECGs are read out.

there the integrated circuit on the lamp itself or in a be formed separate connectable to the ECG unit.

As already indicated, the inventive Communication unit be attached directly to the lamp, it is however, it is also possible to use the communication unit as a separate with the ECG connectable device, the manufacturer with the production-specific lamp parameters of the associated Lamp is equipped and attached to a designated Interface with the electronic ballast connectable is.

Further Advantages and advantageous embodiments are in the Subclaims, the description and the figures shown.

Brief description of the figures

in the The invention is based on exemplary embodiments be described in more detail. Here are the in the figures Examples shown only preferred embodiments of the invention and should not be used to the scope to define the application.

It demonstrate:

1 a first preferred embodiment of a lighting system according to the invention;

2 a schematic representation of the definition options of the lamp parameters in the embodiment according to 1 ;

3 A second preferred embodiment of a lighting system according to the invention; and

4 a third preferred embodiment of a lighting system according to the invention.

Preferred embodiment the invention

1 shows an embodiment of a lamp according to the invention 2 holding a lamp body 4 and a plug 6 having. By means of the plug 6 is the lamp 2 connectable with an electronic ballast, not shown here.

Further shows 1 in that the lamp body 4 as a reflector lamp with a reflector 8th is trained. The lamp itself consists of a short arc high pressure discharge burner 10 that's on a first page 12 over the reflector 8th with a power supply element 14 which in turn is connected to a first pole of the five-pin connector 6 the lamp is connected. A second page 18 of the high pressure discharge burner 10 is with a pedestal 19 of the reflector 8th Connected and via a second power supply 20 powered. The second power supply 20 is with a second pole 22 of the five-pin connector 6 the lamp 2 connected. Furthermore, the plug has 6 three more poles 24 . 26 and 28 which are not used in the prior art.

By means of the plug 6 becomes the lamp 2 connected to the electronic ballast, not shown here and supplied with power of a given rated power.

That of the lamp 2 emitted light can through an opening 30 be coupled into a light guide, not shown here, for example, for an endoscope. However, for the operation of an endoscope or other lighted surgical equipment is a defined delivery of a luminous flux at the opening 30 necessary.

In this case, however, the luminous flux distribution varies due to the production of such lamps in some cases considerably. This means, for example, that for a sample of 571 lamp values, there is a luminous flux distribution summarized in the following table. > 500 lm, ≤600 lm: 14 lamps > 600 lm, ≤700 lm: 167 lamps > 700 lm, ≤800 lm: 278 lamps > 800 lm, ≤900 lm: 103 lamps > 900 lm, ≤100 lm: 9 lamps

Around a narrowing of this luminous flux distribution from a range of +/- 250 lm to reach for example +/- 100 lm, is proposed according to the invention, the production-specific, d. H. lamp-specific, adjust lamp performance parameters.

Reached a lamp so for example only 500 lm instead of the desired 700 lm, can be provided to overpower the lamp, d. H. for example, with a 110% electric power too operate.

However, if the light output is too high, for example in the region of 900 lm, it may be provided to dim the lamp to a certain percentage. As a result, the power of the lamp is adjusted so that the at the opening 30 provided luminous flux corresponds to the target value.

Around However, to carry out such a setting, one must appropriate communication unit be provided with the ECG is connectable and the measured power value of the lamp the ECG can pass so that the electronic ballast the lamp in a standard, over-valued or dimmed state.

Such a communication unit should advantageously connect via a line to the ECG be bar. In this case, the communication unit may be formed as a separate component, but it is also possible to arrange the communication unit to the lamp. It is particularly advantageous, for example, the already available at the base of the lamp and unused poles 24 . 26 . 28 on the one hand to establish a connection between the lamp and the electronic ballast, and on the other hand to enable transmission of the product-specific lamp parameters to the electronic ballast.

Of course however, an additional line may also be provided, which connects the communication unit with the TOE.

In the in 1 illustrated preferred embodiment, a communication unit in the form of a jumper 32 used, which is designed to poles 24 . 26 and 28 specifically to communicate certain lamp parameters to the TOE.

2 shows five different jumper positions, which are possible with three connectable contacts.

there For example, the jumper position A may be a default setting mean that corresponds to a 100% operation. Jumper position B can, as shown here, an overpowering, for example, to 110%, while jumper position C is a dimmed one Operation corresponds. The other jumper positions D and E can for example, to continue to use the dimming percentages to specify or different overpower states define.

there the jumpers can be checked by the manufacturer when measuring the Lamp, for example, at the end of the production process, set or, if applicable, customized by or at the customer's request To enable solutions.

Instead of in 1 However, it is also possible to apply a variable resistor between two of the contacts of the five-pin connector, which can transmit different lamp parameters to the ECG by means of the different resistance values.

3 shows such an embodiment of the lamp according to the invention, wherein compared to 1 only one other communication device is selected. Instead of in 1 described jumper solution shows 3 a potentiometer 34 that between the poles 24 and 28 defines an adjustable resistance value. When connecting the lamp 2 With the ECG, this resistance can be detected by the ECG and the lamp can be controlled accordingly. According to the solution with jumpers, different resistance values can define different lamp states.

Just the use of a potentiometer has the great advantage that for example in a final measurement or at the customer's customization The resistance values can be realized quickly and easily.

Instead of a variable resistor can also, as in 4 shown, an integrated circuit 36 used, for example, with the poles 24 . 28 is connected to transmit lamp parameter values stored on it to the TOE.

The Using an integrated circuit also has the advantage that not only a single lamp parameter can be mediated, but several parameters.

Instead of the exemplary embodiments illustrated in the figures, where the communication unit is connected to the lamp and possibly an already existing line of the lamp to the ECG used as connecting element between communication unit and ECG, It is also possible that the communication unit as Separate component is executed, which shipped with the lamp and can be connected to the TOE. For example, on the ECG be provided an interface that is designed to separate communication component or the separate communication component connecting connection and lamp parameter values of the Communication unit to the TOE to pass.

Also In this case, the programming or the setting of the Communication unit made by the manufacturer or the customer become.

Disclosed is a lighting system with at least one lamp and at least one at least one lamp operating electronic ballast, wherein at least one with the electroni is adapted to communicate at least one production-specific lamp parameters to the electronic ballast, and the electronic ballast comprises a control unit which is adapted to control the electronic ballast such that the lamp parameter communicated by the communication unit has a defined value or is within a defined range of values, as well as such a communication unit and a method for operating such a lighting system.

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• CA 2325304 [0006]

Claims (15)

Lighting system with at least one lamp and at least one of the at least one lamp operating electronic Ballast characterized by at least one with the at least one electronic ballast connectable Communication unit designed to have at least one production-specific one Lamp parameters to the electronic ballast to communicate and thereby, that the electronic ballast a control unit which is adapted to the electronic To control ballast so that the lamp so is operated that communicated by the communication unit Lamp parameter has a defined value or range of values. Lighting system according to claim 1, wherein the communication unit via at least one connecting line with the electronic ballast is connectable. Lighting system according to one of the preceding Claims, wherein the production-specific lamp parameters can be stored in the communication unit. Lighting system according to one of the preceding Claims, wherein the production-specific lamp parameters a luminous flux at a defined rated power, in particular by a predetermined opening of a diaphragm is. Lighting system according to one of the preceding Claims, wherein the communication unit as a separate Component is formed, which has at least one on the electronic ballast arranged interface can be connected to the electronic ballast. Lighting system according to one of the preceding Claims, wherein the communication unit directly to the Lamp is attached. Lighting system according to claim 6, wherein the lamp a pedestal with three or more poles having a connection to produce the electronic ballast, wherein two poles for a power supply of the lamp and the at least another pole for connecting the communication unit with the electronic ballast is designed. Lighting system according to one of the preceding Claims, wherein the communication unit is a variable Resistor, in particular a potentiometer, or an integrated Circuit is. Lighting system according to one of the preceding Claims, wherein the communication unit is a jumper. Communication unit with a a lamp operating electronic ballast is connectable and which is designed to be at least one production specific Lamp parameters to the electronic ballast to communicate. The communication unit of claim 10, wherein the Communication unit in a lighting system according to one of Claims 1 to 9 is arranged. Lamp with a communication unit that is designed, at least one production-specific lamp parameters to a control unit of a lamp operating electronic Ballast to communicate. A lamp according to claim 12, comprising a communication unit according to one of claims 10 or 11. Method for operating a lighting system with at least one lamp and at least one lamp operating electronic ballast characterized in that the electronic ballast with at least one communication unit connected to at least one production-specific lamp parameter to a control unit present in the electronic ballast to communicate; and the control unit the electronic ballast such that the lamp with the to a defined value or value range set lamp parameter is operated. A method according to claim 14, wherein a lighting system according to any one of claims 1 to 9 be is driven.