JP2012130710A - Dental treatment light - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a treatment light for medical treatment, for dental treatment in particular, which can be easily adapted to various optical conditions or customer demands and can allow selection of a sanitarily preferable form.SOLUTION: The medical or dental treatment light includes a housing and a plurality of LED light sources 200, the LED light sources are reversibly detachably connected with an energy supply means. In this case, the LED light sources are connected to each other in a series circuit preferably, and/or preferably the energy supply means is arranged inside the housing.

Description

  The present invention relates to a treatment lighting apparatus for medical use, particularly dentistry.

  In order to ensure an optimal medical procedure, for example in the case of a surgical or dental procedure, it is essential to properly illuminate the treatment site. In that case, in order to protect the patient on the one hand, but on the other hand to optimize the lighting, various ambient conditions are noted and they are adopted in different standards. For example, these standards specify the shape of the light field, a predetermined minimum value for the color reproduction index of illumination, and a minimum value for illumination intensity.

  Nevertheless, within the framework of the standard and even in special cases, a large number of application requests are also taken into account, in order to enable a competitive adaptation to customer requirements from the perspective of the luminaire manufacturer. A number of luminaire models are presented. For example, in order to obtain a sufficient contrast ratio, it may be necessary to adapt the maximum available illumination intensity to the spatial conditions of the treatment room. Furthermore, emphasis on the positioning of the treatment luminaire may lead to a predetermined light path from the luminaire to the object plane, which presupposes a special positioning of the light emitting means, for example.

  Another peripheral condition for using the luminaire for medical purposes is that the luminaire must also meet special hygiene requirements. It is therefore desirable for the luminaire to allow easy cleaning.

  The object of the present invention is therefore to improve the appropriate medical, in particular dentistry, treatment luminaire and to make it easily adaptable to various optical conditions or customer requirements. A hygienic preferred form is also selected.

  This problem is solved by the features of claim 1. The development of the invention is the subject of the dependent claims.

  According to the present invention, a medical or dental treatment illumination apparatus has a housing and a plurality of LED light sources. In that case, the LED light source is reversibly connected to the energy supply means for the LED light source.

  Multiple LED light sources so that the use of large area reflectors (and conversely this is common in the case of dental treatment luminaires with light sources that are not semiconductor based) can be omitted Has been placed. Thus, using an LED light source provides a degree of freedom in the placement of the light source, which provides a significant advantage in adaptability of light emission for reflector-based luminaires. Furthermore, the LED light source, which is reversibly removably coupled to the energy supply means for driving, further increases this adaptability. Thus, the possibility is provided to replace one or more LED light sources, preferably all LED light sources arranged in the housing, in a simple manner to meet the application requirements. In particular, each of the LED light sources has an appropriate connection means, which allows a reversibly removable connection with the energy supply means.

  Furthermore, the energy supply means is preferably arranged inside the housing. Thus, in a simple manner, adaptation to different LED light sources, in particular to a modified number of LED light sources, can be achieved by connecting means arranged inside the housing.

  In a preferred form, the light sources are connected to each other in a series circuit, particularly preferably by a flex conductor. This combines a series of advantages. For example, the length of the current supply path can thereby be reduced in a ring-shaped arrangement for guiding the current. Additional LED light emitting means can be easily integrated into a ring-shaped arrangement for guiding the current. This is because it is only necessary to close the current supply path to the adjacent LED light source. In addition, the magnitude of the supply current can thus be easily incorporated into a ring-shaped arrangement for guiding the current in this way, so that when expanding the treatment luminaire, for example, more than to the energy supply means Complex adaptations can be effectively avoided.

  In the development of the present invention, the LED light source has bridge means, and the bridge means is formed to maintain the connection current circuit when the LED light source fails. This makes it possible, for example, to avoid interruption of the series circuit, so that the remaining functional LED light source is further connected to the energy supply means.

  The ambient conditions for optimal medical lighting equipment are documented within a set of standards, of which the most important for dental purposes is now EN ISO 9680; , Defining the light field within the optimal object plane to treat, preferably including the location of the medical procedure.

  In the development of the invention, the LED light source illuminates a common light field in the object plane, preferably only the common light field.

  Further facilitating the simple mounting and interchangeability of the LED light source, and further the LED light source can be arranged on a common support, which is coupled to a housing, for example.

  Preferably, the support has suitable fixing means for coupling the LED light source with the support. Furthermore, this can likewise be provided for LED light sources.

  Furthermore, the support can have a fixed surface or fixed point for the LED light source, which is as follows: each of the LED light sources is relative to a common center point of a common light field in the object plane In particular, the optical axes of the respective LED light sources are directed to a common center point of the light field because they are arranged to be oriented.

  In the development of the invention, each of the LED light sources is configured to completely illuminate a common light field. In this case, preferably the LED light source can also be formed to illuminate only a common light field.

  With this configuration, for example, the light source can be easily arranged on the support member without special measures for optical adjustment, in which case the arrangement inside the housing is simultaneously pre-set by the support member. The advantage of being defined is obtained. Thus, a predetermined type of arrangement of LED light sources is provided, which can ensure that in each case a light field that meets the standard is generated.

  In combination with the possibility of reversibly detachably coupling the LED light source provided in accordance with the invention with the energy supply means, it is also possible to change the maximum possible illumination of the light field in a rapid manner. A very flexible adaptation to customer requirements is given.

  Particularly preferably, in this case, the support can be formed so as to release heat of the LED light source. Preferably, conducting heat between the LED light source and the support is performed by an adhesive foil, for example a flexible heat conducting foil that is self-adhering.

  In particular, this makes it possible, on the one hand, to reversibly and removably couple the light source, in which case the adhesive foil has to be replaced after several removal and fixing processes. On the other hand, this can also result in compensation for manufacturing tolerances of the support member.

  For example, the adhesive foil can have a thickness selected appropriately, preferably between 0.2 and 3 mm. Furthermore, the adhesive foil also supports the electrical insulation of the LED light source with respect to the housing, so that it can comply with the appropriate standards with less space demand, for example for air- / creeping sections for electrical insulation. it can.

  However, the present invention is not limited to heat conduction by the adhesive foil. Furthermore, for example, a housing for the heat-conducting paste or liquid can be provided on the support, which further enables a reversibly removable connection with the support. In that case, for example, the LED light source can be inserted into a tank formed on the support, which simultaneously contains means for promoting heat conduction. For example, it can be a heat conductive paste or a suitable liquid that increases the contact area of the LED light source.

  Furthermore, for example, the support can have fixing means for the energy supply means of the LED light source. Accordingly, the support simultaneously realizes a compact arrangement of the energy supply means, which energy supply means are also configured to allow heat to escape via the energy supply connection means.

  Furthermore, the fixing means can be formed such that a cascade arrangement of the energy supply means is realized. For example, the support can have a plurality of, preferably the same type of fixing means, which is formed to couple a plurality of independent energy supply means for the LED light source with the support. Yes.

  In the development of the idea of the present invention, the LED light source is divided into several parts. Preferably, the LED light source has optical means. Particularly preferably, the LED light source has a sheet bar, which has connection means. In that case, the connecting means can be a plug connector, particularly preferably for a flex conductor. In that case, preferably the connecting means, in particular the plug connector, can be formed in such a way that a series circuit with each of the reversibly removable LED light sources is provided.

  In the embodiment, the LED light source has a plurality of LED light emitting means, and is preferably formed as a substantially point light source or a light source having an area as small as possible. In the development of the present invention, the LED light emitting means are each configured to emit light having different color locations relative to each other.

  In this case, the LED light-emitting means are connected in series circuit with the light emission of a predetermined color location, thus forming a number of series circuits for LED light-emitting means of different color locations, The LED light emitting means of a predetermined color location are connected to each other and to the energy supply means so as to be reversibly removable.

  In a preferred embodiment of the present invention, the plurality of LED light emitting means of the LED light source are arranged on a common substrate, and the substrate is formed so as to release heat. It can be a metal substrate, for example. Preferably, the substrate can be formed such that a coupling by shape with the support is achieved. In particular, the metal substrate can also be formed in combination with, for example, an adhesive foil, a heat conductive paste or a cooling liquid to assist in increasing the contact surface.

  Further, in the development of the idea of the present invention, the energy supply means can be formed so as to control the light intensity of the LED light emitting means in a closed loop control or an open loop control. Preferably, the closed loop or open loop control for the light emitting means of different color locations is performed independently of each other.

  Furthermore, the form of treatment luminaire with LED light emitting means provides other advantages. Usually, the housing for the treatment luminaire can be chosen relatively compact. However, in this compact housing-as compared to conventional light emitting means-it is possible to maintain the temperature required to drive the LED light emitting means on the basis of less heat radiation, and the air into the housing There is no need to introduce flow.

  In the development of the invention, the treatment luminaire has a housing, which housing is substantially completely closed and preferably has a completely closed cover of the light exit surface; The cover is formed integrally, for example. For example, the cover can be provided with a scratch-resistant nano or silicate coating.

  Preferably, the cover is configured to be autoclavable, for example the maximum dimension of the cover can be taken into account, so that the integral part of the cover does not exceed the maximum dimension defined by the usual cleaning device . This is the case for an integral region, for example with dimensions smaller than 21 × 30 cm.

  It is thus possible to realize a treatment luminaire that is optimally shaped from a hygienic point of view, the treatment luminaire having a surface that must be easily cleaned, and additional ambient air during operation. Will not cause any serious pollution.

  In that case, a substantially completely closed housing means that the housing is completely closed except for the opening for the energy supply conductor, the communication means, the display means or the operating member. It means that. In this particular case, the LED light source is completely arranged inside a closed housing.

  In order to further improve the hygienic properties, for example, the operating member of the treatment luminaire can be removed. Further, the operation member can be formed so as to be autoclavable. Particularly preferably, a plurality of attachment positions for attaching the operation member can be provided, and further, flexible use of the luminaire can be achieved by changing the attachment position.

  In the development of the present invention, the treatment lighting apparatus has an operation member that can be operated without contact. It can be, for example, a sensor means that senses movement, which sensor means is preferably configured to turn on or off one or more of the LED light sources. Furthermore, for example, a non-contact control of the light emission dimming of the treatment luminaire can be provided.

  Furthermore, the treatment luminaire can have, for example, removable grips or mirrors, which can preferably be made autoclavable as well, in order to improve the hygienic properties of the luminaire. In each case, the detachability results in improved cleanability and, in addition, various mounting positions for grips or mirrors can be arranged as well, so that customer demand Increased flexibility is obtained when adapted to and in the use of treatment luminaires.

  Furthermore, the treatment luminaire can have a camera or an orienteering laser. This provides the possibility of obtaining an enlarged display of the treatment site as a live display when the procedure is difficult; and for detecting individual images during the procedure, eg for documentation or lighting purposes It can also be provided. The exact centering of the treatment luminaire can then be improved and controlled, for example, by an orienteering laser.

  Hereinafter, the present invention will be described in detail with reference to the accompanying drawings, in which case the same reference numerals are provided to the same members in all the displays.

It is a perspective view which shows in detail the Example of the treatment lighting fixture which has the light source comprised in several parts. 1 is a diagram schematically showing a treatment lighting apparatus according to the present invention in cross section or top view. It is an exploded view which shows in detail mounting a some LED light source on a support body. FIG. 3 is a perspective view detailing a rear shell of a luminaire housing having an LED light source on a support coupled with the housing. Fig. 4 shows an embodiment for attaching a mirror or grip to a treatment luminaire.

  Medical and in particular dentistry treatment luminaires are configured to optimally illuminate the treatment site and thus generate a spatially limited light field in the object plane. The spatial limitation is then determined by reducing the illumination intensity in the surrounding area as defined, for example as defined in the standard EN ISO 9680. However, apart from the determination of standards, in many cases it is necessary to adapt the treatment luminaire to the needs of the user.

  The treatment luminaire shown schematically in FIG. 1 makes this possible in a simple manner.

  According to the present invention, the treatment luminaire has a plurality of LED light sources 200, which are reversibly detachably connected to energy supply means for driving the LED light sources 200. The example shows three LED light sources 200, which are arranged in a matched, in this case tank-shaped housing 500, and in which other LED light sources are mounted. You can also. In particular, for this purpose, at least one other mounting position can be provided in the housing, for example with fixing means. The housing can be formed from plastic material, for example from glass fiber reinforced plastic, but can also be formed from metal, for example. However, forming completely from a uniform material, preferably plastic, offers the possibility of omitting the bonding of the various materials, thereby improving the shape stability of the housing over a wide temperature range.

  The form according to the invention of the treatment luminaire makes it possible, for example, to change the number of LED light sources 200 and thereby adapt the total light emission of the treatment luminaire to the needs of the user. Furthermore, the form according to the invention also realizes the idea of modifying the built-in position of the LED light source 200 in a particularly efficient manner; i.e. by changing the built-in position when total light emission is defined, Since the incident angle to the spatially limited light field in the plane can be changed, it is possible to avoid the occurrence of shadows in some cases.

  For example, at least one of the LED light sources 200 is reversibly removably connected to the energy supply means, but preferably each of the LED light sources 200 is reversibly removably connected to the energy supply means.

  In a preferred development of the invention, a plurality of LED light sources 200 are connected in series circuit with the energy supply means.

  Furthermore, in this embodiment, the energy supply means of the treatment luminaire is located inside the housing 500, which helps to efficiently form the adaptability of the treatment luminaire.

  In a preferred embodiment, the LED light source 200 is configured to illuminate a common light field in the object plane, for example only a common light field that preferably represents a spatially limited light field in the treatment plane. Has been.

  For ease of installation, the LED light source is disposed on the support 510 in this embodiment. This support preferably defines the location of the LED light source 200 in the housing 500 and is preferably coupled to the housing 500, for example, reversibly and removably. In a preferred development, the support 510—and preferably also the housing 500—has appropriate fastening means.

  The support 510 can be formed from, for example, a metal, preferably aluminum, but can also be formed from plastic, particularly glass fiber reinforced plastic.

  Further, the support 510 can have a fixing means for fixing the LED light source 200. In the embodiment shown in FIG. 1, a reversibly removable connection of the LED light source 200 to the support 510 is provided. For this purpose, since the support body has holes, the LED light source 200 and the support body 510 can be connected to each other using, for example, a screw. You can also The support also has a fixed pin that is configured to engage the LED light source 200 and thereby define the orientation of the LED light source 200 using the corresponding opening. . Using the openings and pins, for example, encoding can be achieved, which instructs or eliminates the attachment of a given LED light source 200 to a predetermined installation position. Thus, in deployment, the securing means for the at least two LED light sources 200 are different, and preferably the pin arrangement for at least two of the LED light sources 200 is different.

  In the illustrated embodiment, the support 510 has a fixed surface 515 for the LED light source 200 that is oriented with respect to the common center point of the common light field in the object plane. It is arranged to be attached. Further, in the embodiment, the fixing surface 515 is formed so as to couple the LED light source 200 to the support body by shape coupling.

  In a preferred development of the present invention, the support 510 is formed to release heat from the LED light source 200. Further, as shown in FIG. 2, an adhesive foil 530 that assists in releasing heat is disposed between the LED light source 200 and the support 510. The adhesive foil 530, on the other hand, provides the possibility of achieving excellent thermal coupling between the support 510 and the LED light source 200. On the other hand, the adhesive foil 530 can be formed to provide a shape-wise connection between the support 510 and the LED light source 200 when the thickness is appropriately selected. In particular, possible tolerances of the support 510 or the LED light source 200 can thereby be compensated. Accordingly, the adhesive foil 530 preferably has a thickness between 0.01 and 5 mm, particularly preferably in a region between 0.2 and 3 mm. At the same time, by using the adhesive foil, the possibility of further reversibly detachably coupling between the support 510 and the LED light source 200 is not affected. In particular, since the adhesive foil 530 is renewed only after a series of bonding or detaching processes, this bonding can be reversibly removed for the application case described above-adaptation of the light emission of the treatment luminaire. It is assumed that it will be considered.

  Particularly preferably, the housing 500 can be similarly configured to dissipate heat, and this particularly relates to the back shell of the housing 500 described below. In this case, the support 510 can be formed to have a suitable notch for inserting the LED light source 200, for example. In that case, the support 510 is preferably dimensioned so that the LED light source 200 can make heat-dissipating contact with the housing 500. For example, a suitable adhesive foil 530 can form a contact that releases heat to the housing 500. The corresponding embodiment shown in FIG. 3 is described more precisely below.

  According to the development of the present invention shown in FIG. 2, the LED light source 200 is formed in several parts. In this case, the LED light source 200 has a plurality of LED light emitting means 100, which can be disposed on a common substrate, for example. Preferably, this substrate is formed so as to release heat in common with the LED light emitting means 100, and can be made of metal, for example. Further, in this embodiment, the LED light emitting means 100 is connected to the seat bar 210. In this preferred form, the sheet bar 210 has a notch for the common substrate of the LED light emitting means 100 so that this substrate is directed directly to the support 510, for example by means of an adhesive foil 530. 510 can be combined.

  The example shows an FR4-seat bar (class 4 “flame retardant”), which has a scraper to limit the opening angle of the light cone emitted from the LED light emitting means 100. This scraping portion is formed as an extension of a notch for the common substrate of the LED light emitting means 100 in the illustrated embodiment, and the optical means 220 of the LED light source 200 with which the opening angle is associated. Selected to be adapted. For example, the opening angle can be selected such that only the lens associated with the light emission of the LED light emitting means 100 is illuminated. In the illustrated embodiment, the opening angle is preferably between 170 ° and 20 °, but particularly preferably between 150 ° and 110 °.

  In the development of the present invention, the components of the LED light source 200 are blackened or darkened, for example, to attenuate diffused light. This is especially true for the cutting area.

  The optical means 220 can preferably be a lens or a lens arrangement, which is arranged directly on the sheet bar 210, for example, so that the LED light source 200 is regarded as a connected, preferably complete assembly. be able to. In this way, the light emission of the LED light source 200 can be integrated particularly easily into the optical concept of the treatment luminaire. This is because, simultaneously with the assembly of the LED light source 200, suitable optical means 220 can also be inserted into the treatment luminaire.

  According to a development not shown, the optical means can also have an n-edge prism formed as a light guide, so that collimation and color mixing of the light emitted from the LED light emitting means 100 is achieved simultaneously; In some cases, the number “n” of bent edges is preferably between 5 and 7. In this case, the LED light-emitting means can be directly coupled with the optical means and can therefore be joined in particular with the appropriate coupling surface of the prism. This can be realized, for example, as a beam widening optical system. Preferably, the prism is formed so as to project the light emitted from the prism onto a common plane. In this case, this plane can be used as a coupling plane for other beam widening optics, for example realized by a lens that generates a spatially limited light field that conforms to the standard in the object plane. it can. However, the beam widening optical system can be directly disposed on the light exit surface of the prism, or can be directly coupled to the prism.

  Preferably, one of the LED light sources 200, preferably each, has a connecting means 215, which is formed to achieve a reversibly detachable coupling with the energy supply means 520. . In the embodiment of FIG. 2, for this purpose, a plug connector is provided on the seat bar 220, which is configured to energize the associated LED light source 200, for example in at least two poles.

  In a preferred development, the connection means 215 is formed to connect a plurality of current circuits of the LED light source 200 with the energy supply means 520.

  For example, the LED light source 200 can include a plurality of LED light emitting means 100, and the LED light emitting means have light emission of different color locations. In this case, for example, the connecting means 215 can realize an independent current circuit for the LED light emitting means 100 each having a predetermined type of light emission, and the current circuit is connected to the energy supply means 520. Yes. For this purpose, a common plug connector can be provided, but the use of a plurality of plug connectors within the framework of the idea of the invention is in no way excluded. Particularly preferably, the current circuit for the LED light emitting means 100 having a predetermined type of light emission, each having a common color location, for example, is formed as a series current circuit.

  In the development of the idea of the present invention, the LED light source 200 is formed as a substantially point light source, the light source comprising, for example, a plurality of LED light emitting means 100, for example other color locations. Can have different light emission. Here, the concept of “substantially” results in a centrally symmetric arrangement (group) of LEDs, which has a deviation from the central symmetry, which is only brought about by the size of the individual LED light emitting means 100. is doing.

  The energy supply means 520 may be formed to control the light intensity of the LED light emitting means 100 in a closed loop or open loop manner in an embodiment. Thereby, a series of advantages can be obtained which are particularly important for the dental use of the treatment luminaire.

  For example, a given LED light source 100 can preferably be dimmed so that a given color component can be considered substantially filtered from the light emission spectrum of the treatment luminaire. For example, it can be a wavelength component in the blue (<520 nm), violet or UV spectral region that promotes curing of the dental treatment material. Therefore, by adjusting or fading out this wavelength component, a preferable curing time can be obtained, and it is not necessary to insert a mechanical filter into the optical path of the treatment lighting apparatus. This fading out of the wavelength components can be realized, for example, by selectively turning off the individual LED means 100 as well.

  It is also conceivable to control the color location of the total light emission of the LED light source 200 or the treatment luminaire by open-loop control or closed-loop control. It may be necessary to prepare a light emission similar to daylight, especially for color adjustment purposes. To that end, the treatment luminaire can have appropriate sensor means, through which the adjustment of the light emission of the individual LED light sources 200 or treatment luminaires can be carried out, preferably by means of the target value of the color location. . For example, it may be an optical sensor or a color sensor, preferably one or more photodiodes or RGB- or RGBW, for example formed to detect different wavelength components of the emitted light spectrum or light in the object plane. It can be a sensor. Further, for example, a temperature detecting means can be provided in order to obtain a measurement amount that can be used for open-loop control or closed-loop control of light emission, and preferably proportional to the light emission of the LED light-emitting means 100. In this development, NTC resistance ("Negative Temperature Coefficient") can be provided for this purpose.

  In that case, the energy supply means 520 preferably evaluates the deviation from the target value of the energy supply for the LED light emitting means 100 of different color locations based on the measurement provided by the sensor means to provide the energy supply. In order to adapt the light emission of the LED light source 200 by the open loop control and the closed loop control. This is achieved by open-loop or closed-loop control of the treatment luminaire and also of the intensity of light emission for emitting light of a predetermined color location. Thus, the light emission of the treatment luminaire, for example, represents a light emission that resembles a special daylight, and at the same time controls the intensity of the total light emission, and has a corresponding color resistance index, for a given color location. Can be determined. For example, when adjusting the color of a dental implant, it may be particularly preferable to increase the intensity of light emission while maintaining a predetermined color location.

  In that case, for example, the temperature detecting means or the NTC resistor can be arranged directly on the sheet bar of the LED light source 200. Connecting this means with the energy supply means 520 is preferably configured to be reversibly removable as well.

  Open loop control or closed loop control of the luminous intensity of the LED light emitting means 100 is preferably performed via pulse width modulation of energy supply. In particular, a plurality, preferably all, of the LED light sources 200 can be connected to the energy supply means 520 capable of pulse width modulation, particularly preferably in a series circuit.

  The development shown in FIG. 3 illustrates a treatment luminaire having features of the present invention. Preferably, the treatment luminaire has a housing that is substantially completely closed. This configuration is particularly useful for maintaining the hygienic perfection of the treatment luminaire. In particular, omitting the introduction of cooling air inside the housing represents a significant advantage for the cleaning cycle of the treatment luminaire. This is because in practice it is excluded that dust or dust particles can enter the interior space of the treatment luminaire. For example, since the housing can have a suitable seal, entry of disinfectant into, for example, the interior space of the process lighting fixture is also avoided.

  In that case, the tank-shaped rear shell 580 of the housing 500 is coupled to the substantially transparent cover 570 on the light exit surface, preferably reversibly and detachably. In particular, it has been found preferable if the cover 570 is removably coupled to the housing without tools, such as by a locking coupling. However, this does not preclude the use of threaded connections, as will become apparent below. Particularly preferably, a seal is attached between the cover 570 and the rear shell 580 of the housing.

  In the embodiment, the light emitting surface cover 570 is formed integrally. Furthermore, the cover 570 substantially surrounds the entire surface of the treatment lighting device facing the seat bar. Particularly preferably, the integrally formed portion of the cover 570 has dimensions that allow processing within a dental autoclave. Preferably, therefore, the cover has a surface dimension smaller than 21 cm × 30 cm. In this configuration, besides the particularly preferred accessibility to the LED light source 200, the treatment luminaire is cleaned very easily. In particular, in this embodiment, it is anticipated that substantial contamination will occur in the region of the cover 570 of the light exit surface of the treatment luminaire. In addition, the possibility to clean the cover 570 independently of other components of the treatment luminaire is provided. For example, the appropriate cleaning method can be supported by the autoclavable specifications of the cover 570.

  Further, similarly, the accessibility to the LED light source 200 is associated with the cover 570 of the light emitting surface of each LED light source 200 by an opening, and the opening can be separately removed by the cover. It can be improved by being closed. For example, a special blind cover can be provided for an unused mounting position of the LED light source 200.

  In the deployment of FIGS. 4a and 4b, the treatment luminaire has a tub-shaped back shell 580 of the housing 500, in which case the back shell has a support arm 575, which support arm is optically A fixing point for the tank-like cover 570 is formed in the same manner as the emission surface. A tub-like cover 570 on the light exit surface substantially completely surrounds the portion of the treatment luminaire facing the patient. Furthermore, the grip 550 simply represents the area of the treatment luminaire that faces the patient.

  In the illustrated embodiment of FIGS. 4a and 4b, the grip 550 is arranged so that it simultaneously serves as a securing means for the cover 570 of the light exit surface. In particular, the grip 550 is reversibly removably coupled in the same manner as the treatment lighting device housing 500. Preferably this can be achieved by a screw connection accessible from the outside, so that an opening of the treatment luminaire for removing the grip 550 can be avoided. For example, the grip can be screwed into the appropriate support arm 575 so that the gripping surface can be used to provide sufficient screwing force, which ensures a toolless connection. This also allows easy cleaning of the grip 550 independently of the other components of the treatment luminaire, so in this embodiment, optimal cleaning of the portion of the treatment luminaire toward the patient is possible. Is possible. The embodiment further shows a plurality of fixing points for the grip 550, which are arranged on a support arm 575, preferably formed on the left or right side of the housing 500. With this large number of fixing points, it is further possible to find grip arrangements that are optimally adapted to the treatment situation. At the same time, in the deployment shown in FIGS. 4 a-4 b, the cover 570 is secured to the housing using the coupling of the grip 550 to the housing 500.

  FIG. 5 further shows a removable mirror 560, which is also coupled to the housing 500 or arranged on a common support arm, in which case the support arm is preferably a treatment luminaire. It has a cardan joint for rocking and is connected to this treatment luminaire. Particularly preferably, the mirror 560 can be autoclaved as well.

In the development of the invention, the treatment luminaire has, in addition to the grip 550 or the mirror 560, for example, other removable operating members 540, which are for example for adjusting dimming or color location, It has a rotating ring. Particularly preferably, the rotating ring provides a large number of locking positions, thus providing reproducibility of the adjustment. That is, for example, each locking position can be coupled with a defined light emission of the treatment luminaire, which can be combined with a continuous change in light emission, for example in the context of a dedicated treatment mode. It is also possible to select significantly different light emission characteristics. The development relates to user-specific storage of light emission values within the treatment luminaire, for example in addition to factory-side preconditioning. Further, the operation member can be formed so as to be autoclavable in the same manner.
Furthermore, in a particularly preferred variant, the luminaire has a toggle switch for turning the luminaire on or off, which can be integrated, for example, in the axis of rotation of the rotating ring described above.

  The treatment mode of the luminaire can include increasing the intensity of light emission within the wavelength region of 400 to 460 nm, for example, to detect oral cancer. To detect the stimulated green fluorescence of the oral mucosa, the practitioner must wear dichroic glasses, or the luminaire must have appropriate proof, as explained below. Don't be.

  Furthermore, for example, an increase in the intensity of light emission can be provided in the region of 405 nm in order to detect caries within the treatment mode. In that case, the metabolite of the caries bacteria is evidenced by red fluorescence. A treatment luminaire can also be formed to verify this metabolite, as described below.

  Furthermore, in order to be able to distinguish natural tooth material from artificial one within the treatment mode, light emission can take place mainly in monochrome. Recognition can be done by different reflection behaviors of artificial or natural tooth materials. For example, a treatment luminaire can be configured to detect reflected light at various angles for that purpose.

  In an embodiment, the treatment lighting apparatus has an operation member that can be operated without contact. It can be, for example, an optical sensor, which senses movement, for example, turns the treatment luminaire on or off, preferably in a fixed detection area, or a dimming stage or treatment mode Select without contact. Furthermore, non-contact operating members or suitable sensor means can be configured to detect if there is a shadow in the light path to the object plane and possibly adapt the number of active LED light sources 200. Can do. In that case, for example, the LED light source 200 that mainly illuminates the shadowed area is turned off, possibly increasing the light emission of the remaining LED light source 200, or the LED light source that has not been previously used in the treatment luminaire. 200 can be configured to turn on. This can ensure that the treatment site is optimally and adequately illuminated in each case.

  This is particularly effective because each of the LED light sources 200 is configured to fully illuminate a common, spatially limited light field in the object plane, in particular only this light field. To be realized.

  In the development of the invention, the operating member is integrated in the LED light source 200, so that the treatment luminaire only complements the functionality of a given treatment mode, for example by replacing or incorporating the appropriate LED light source 200. be able to.

  In the development of the invention, the treatment luminaire has an image detection unit, for example a camera. Preferably, the camera can also be arranged on the support 510, for example by exchanging it with one of the LED light sources 200, so that the arrangement and exchangeability of the LED light source 200 described above also applies to the image detection unit or the camera. Conceivable. The camera can then be configured to detect individual images or connected film sequences.

  Preferably it is a semiconductor-based image detection unit, for example a CCD chip. Particularly preferably, an objective lens associated with the image detection unit or camera is inserted in an adjustable dome that can penetrate the cover 570 of the light exit surface, for example. In this case, the adjustment of the camera or the image detection unit can be carried out manually or alternatively by remote operation, for example via a separate operating member.

  In particular, in order to protocol treatment progress, optimal illumination is associated with optimal orientation of the image detection unit or camera, at which time the camera is in the light path between the treatment luminaire and the object plane. It is avoided that shadows can be created by intrusion and that the blind effect in camera orientation by luminaires must be taken into account.

  In addition to documentation purposes, it may also be desired that an enlarged display of the treatment site is made “in real time”, in which case optimal illumination is always provided. To that end, the treatment lighting device can be combined with an image reproduction device, for example to provide a suitable connection means. For example, a monitor can be provided at the location of the mirror.

  Furthermore, the camera can also be used for verification purposes within the above-described treatment modes, so that the image detection unit, for example, in particular for verifying a predetermined wavelength or for detecting light at a predetermined incident angle. Is formed.

  In an embodiment, the image detection unit is further used to control the light emission of the treatment luminaire. For example, the image detection unit can represent the sensor means described above, which sensor means detects the light emission of the treatment luminaire and quantifies the deviation from the target value. Furthermore, for example, shadows in the optical path can also be detected by the image detection unit, and particularly preferably, the three-dimensional information of illumination can be detected by a plurality of image detection units.

  In deployment, the luminaire can further have an orienteering laser. Thus, for example, the center point or limit point of the light field can be marked—preferably only for a short time—thus giving the optimal use of the treatment luminaire. For example, in cooperation with the image detection unit, the three-dimensional information of the illumination is similarly reconstructed, and preferably this information can be used to optimally adjust the spacing of the treatment luminaire relative to the object plane. However, other detection means for detecting the distance may be associated with the laser or treatment luminaire. For this purpose, the laser is pulsatingly driven, so a temporal evaluation of the reflected signal provides this information.

  Ultimately, the present invention provides a dental treatment luminaire that can be adapted very flexibly to the needs of the user and at the same time brings together excellent hygienic properties.

  Finally, it should be pointed out in particular that the features of the various embodiments or combinations of features disclosed in the figures are not excluded according to the invention.

Claims (15)

A housing (500) and a plurality of LED light sources (200)
In the treatment lighting apparatus for medical use or dentistry having
The LED light source (200) is reversibly removably coupled to the energy supply means (520) for the LED light source (200);
In that case the LED light sources (200) are connected to each other, preferably in a series circuit,
And / or preferably an energy supply means (520) is arranged inside the housing (500),
A medical or dental treatment lighting apparatus characterized by the above.   2. The medical or dentistry luminaire according to claim 1, characterized in that the LED light source (200) illuminates a common light field in the object plane, preferably only the common light field.   The LED light source (200) is disposed on a common support (510), the support is coupled to the housing (500), and preferably the LED light source (200) is connected to the support (510). The medical or dental medical treatment lighting apparatus according to claim 1, further comprising a fixing means for coupling.   The support (510) has a fixed surface (515) for the LED light source (200), the fixed surface being as follows: each LED light source (200) is common in the object plane 4. The medical or dental treatment illumination device according to claim 3, wherein the treatment illumination device is arranged so as to be directed to a common center point of the light emitting field.   The support (510) is configured to release heat from the LED light source (200), in which case preferably heat conduction between the light source (200) and the support (510) is achieved by the adhesive foil (530). The treatment lighting apparatus for medical use or dentistry according to any one of claims 3 and 4, wherein the treatment illumination apparatus is used.   The support (510) has fixing means (525) for the energy supply means (520) of the LED light source (200). Medical and dental treatment lighting fixtures.   The LED light source (200) is formed in several parts, preferably with optical means (220) and / or preferably each with a seat bar (210), said seat bar being connected means (215). The treatment lighting apparatus for medical use or dentistry according to any one of claims 1 to 6, characterized by comprising a plug connector.   The LED light source (200) has a plurality of LED light emitting means (100) and is preferably formed as a substantially point light source, in which case the LED light emitting means (100) is preferably 8. The medical or dentistry treatment lighting apparatus according to any one of claims 1 to 7, characterized in that it has light emission of different color locations.   The plurality of LED light emitting means (100) of the LED light source (200) are arranged on a common substrate, and the substrate is formed so as to release heat. Medical and dental treatment lighting equipment.   The energy supply means (520) is preferably for closed-loop control or open-loop control of the intensity of the LED light-emitting means (100) independently for the LED light-emitting means (100) each having light emission of a different color location. The medical or dental medical treatment lighting apparatus according to any one of claims 1 to 9, wherein the medical treatment / dental medical treatment lighting apparatus is formed.   The housing (500) is substantially completely closed and in particular has a completely closed cover of the light exit surface of the treatment luminaire, said cover being preferably autoclavable; The medical or dental medical treatment lighting apparatus according to any one of claims 1 to 10.   12. The treatment luminaire has a removable operating member (540), which is preferably autoclavable, according to any one of the preceding claims. Medical and dental treatment lighting equipment.   The treatment lighting apparatus has an operation member (540), and the operation member is formed to be operable in a non-contact manner, according to any one of claims 1 to 12. Medical and dental treatment lighting equipment.   14. The treatment luminaire has removable grips (550) or mirrors (560), which are preferably autoclavable, according to any one of the preceding claims. Medical and dental treatment lighting fixtures.   The treatment lighting apparatus according to any one of claims 1 to 14, wherein the treatment lighting apparatus includes a camera and / or an orienteering laser.

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