CN216158870U

CN216158870U - Light-emitting device for oral cavity lamp

Info

Publication number: CN216158870U
Application number: CN202121405118.4U
Authority: CN
Inventors: 侯志文
Original assignee: Foshan Bangning Electronic Technology Co ltd
Current assignee: Foshan Bangning Electronic Technology Co ltd
Priority date: 2021-06-23
Filing date: 2021-06-23
Publication date: 2022-04-01
Anticipated expiration: 2031-06-23

Abstract

The utility model discloses a light-emitting device for an oral lamp, which comprises a shell, a light-emitting assembly and a light filter arranged in the shell, wherein the light-emitting assembly comprises a first light-emitting element and a second light-emitting element, and the first light-emitting element and the second light-emitting element respectively correspond to the front side and the back side of the light filter; the shell is provided with a light outlet and a light inlet for the light-emitting component to enter, the light filter is arranged in an inclined mode, so that light rays of one light inlet penetrate through the back face of the light filter and exit the light outlet, and light rays of the other light inlet are refracted through the front face of the light filter and exit the light outlet. The utility model has simple structure, can emit light rays with different color temperatures, and does not need a switcher.

Description

Light-emitting device for oral cavity lamp

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a light-emitting device for an oral lamp.

Background

The light-emitting device is a core component of the dental oral lamp. When a dentist performs a treatment operation on the mouth of a patient, the mouth lamp is required to irradiate the mouth of the patient so as to provide illumination. In general, the light emitting device is set to 5000K standard color temperature to simulate normal natural sunlight. In practical application, however, different dentists have their own preferred light colors, and the light feeling is different, and the required color temperature of the light is also different.

Therefore, it is significant to develop a light emitting device with adjustable color temperature. Generally, the color temperature is below 3300K, the color of the light is reddish, which gives a warm feeling, and has a steady atmosphere and a warm feeling; the color temperature is in the middle of 3000-6000K, so that people have no particularly obvious visual psychological effect under the color tone, and have a refreshing feeling; the color temperature is more than 6000K, the light color is blue, and the feeling of cool and clear is given to people. Under general conditions, the colour temperature can set up and carry out normal operation at 3000 ~ 6000K, and when the operation time is too long, individual doctor can reduce the colour temperature and make the oral cavity lamp send warm chromatic light, improves comfortable doctor's comfort level, reduces fatigue.

On the other hand, the conventional dental filling resin materials are particularly sensitive to the blue component in white light, and particularly work under an LED white light lamp, the resin curing speed is high, so that the filling and shaping steps are not finished within the optimal working time for a doctor. In the operation using the dental filling resin, it is necessary to reduce the color temperature of the light source and reduce the blue light component. In the conventional oral cavity lamp, a filter switcher is installed to switch light sources of different colors.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a lighting device for an oral cavity lamp, which has a simple structure, can emit light rays with different color temperatures, and does not require a switch.

In order to solve the technical problem, the utility model provides a light-emitting device for an oral cavity lamp, which comprises a shell, a light-emitting assembly and a filter arranged in the shell, wherein the light-emitting assembly comprises a first light-emitting element and a second light-emitting element, and the first light-emitting element and the second light-emitting element respectively correspond to the front side and the back side of the filter;

the shell is provided with a light outlet and a light inlet for the light-emitting component to enter, the light filter is arranged in an inclined mode, so that light rays of one light inlet penetrate through the back face of the light filter and exit the light outlet, and light rays of the other light inlet are refracted through the front face of the light filter and exit the light outlet.

As an improvement of the above scheme, the housing is provided with lenses at both the light outlet and the light inlet.

As an improvement of the above, the housing is provided with a lens slot for mounting the lens.

As an improvement of the scheme, the lens arranged at the light outlet is an outer convex fly eye lens, and the lens arranged at the light inlet is a collimating lens.

As an improvement of the scheme, a filter clamping groove for mounting the optical filter is arranged in the shell.

As an improvement of the above scheme, the first light-emitting element and the second light-emitting element both comprise lamp beads and lamp bead substrates, and the lamp beads are arranged corresponding to the light inlet holes.

As an improvement of the above scheme, the lamp bead substrate is provided with a heat radiating seat connected to the shell, and the lamp bead substrate is clamped between the shell and the heat radiating seat.

As the improvement of above-mentioned scheme, one side of radiating seat is equipped with and is used for installing in the spherical convex surface that has the device base plate of spherical concave surface, and the opposite side is equipped with the confession the heat conduction plane of lamp pearl base plate laminating, the radiating seat still set with the clamping piece of spherical convex surface looks adaptation.

As an improvement of the above scheme, the housing includes a main housing and a housing cover, the main housing and the housing cover are both provided with protruding blocks for defining the position of the optical filter, the main housing and the housing cover are closed, and the optical filter is sandwiched between the two protruding blocks.

As an improvement of the above scheme, the optical filter is a dichroic filter or a prism;

the color temperature of the first light emitting element is different from the color temperature of the second light emitting element.

The implementation of the utility model has the following beneficial effects:

the utility model discloses a light-emitting device for an oral cavity lamp, which comprises a shell, a light-emitting assembly and a light filter, wherein the light-emitting assembly comprises a first light-emitting element and a second light-emitting element, the first light-emitting element and the second light-emitting element respectively correspond to the front side and the back side of the light filter, and the light filter is arranged to ensure that the first light-emitting element and the second light-emitting element can emit light holes through the light filter so as to realize the switching of two light rays;

moreover, when the light-emitting components emit light simultaneously, the color temperature of the light of the lamp beads is mixed, so that the effect of adjusting the color temperature is achieved; meanwhile, the brightness of the lamp beads of each light-emitting element is adjusted to mix and adjust light rays with various color temperatures.

Therefore, the utility model has high integration level, and the single device can realize the adjustment of the color temperature. The occupied space is small, and the oral cavity lamp can be made more compact.

Drawings

FIG. 1 is a perspective view of a light emitting device of the present invention;

FIG. 2 is a schematic cross-sectional view of a light emitting device of the present invention;

fig. 3 is an exploded view of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, 2 and 3, the present invention provides a light emitting device for an oral cavity lamp, including a housing 1, a light emitting assembly and a filter 2 disposed in the housing 1, wherein the light emitting assembly includes a first light emitting element 3a and a second light emitting element 3b, and the first light emitting element 3a and the second light emitting element 3b correspond to the front and back surfaces of the filter 2 respectively;

the housing 1 is provided with a light exit hole 11 and a light entrance hole for the light emitting component to enter, the optical filter 2 is disposed in an inclined manner, so that the light of one light entrance hole 12a passes through the back of the optical filter 2 and exits the light exit hole 11, and the light of the other light entrance hole 12b exits the light exit hole 11 through the refraction of the front of the optical filter 2.

Specifically, the first light emitting element 3a and the second light emitting element 3b both include a lamp bead 31 and a lamp bead substrate 32, and the lamp bead 31 corresponds to the light inlet. For the quantity of lamp pearl 31, can integrate a plurality of lamp pearls 31 to realize the regulation and control of colour temperature and luminance more accurately.

In order to better enable the light generated by the lamp beads 31 to exit the light outlet 11. And the shell is provided with a lens 4 at each of the light outlet hole 11 and the light inlet hole.

The housing 1 includes a main housing 13 and a housing cover 14, and the light outlet 11 and the light inlet are disposed on the main housing 13. When the first light emitting element 3a or the second light emitting element 3b works alone for a long time, the temperature inside the housing 1 is locally raised and expanded, and the optical filter 2 is generally thin, and may be broken or deformed to affect the refraction effect. Therefore, the main housing 13 and the housing cover 14 are both provided with the protruding blocks 15 for limiting the position of the optical filter 2, the main housing 13 and the housing cover 14 are closed, and the optical filter 2 is sandwiched between the two protruding blocks 15. The space inside the housing 1 is prevented from being insulated by the optical filter 2.

Furthermore, in order to facilitate the replacement or mounting of the lens 4, the housing 1 is provided with a lens receiving groove 16 for mounting the lens, and accordingly, the lens 4 is provided with an outer edge 41 for insertion into the lens receiving groove. The filter disc clamping groove 17 for installing the optical filter 2 is arranged in the shell 1, the filter disc clamping groove 17 is convenient to assemble and disassemble the optical filter 2, and the filter disc clamping groove 17 with larger width can be preset so that the optical filter 2 can be added in a stacked mode.

Preferably, the lens 4 disposed at the light inlet is a collimating lens to converge and collimate the light emitted by the lamp bead 31, and the lens 4 disposed at the light outlet is an outward-convex fly-eye lens to form a rectangular light spot required by the oral lamp.

The lamp bead substrate 32 is provided with the heat radiating seat 5 connected to the outer side of the shell 1 in a matching mode, and the lamp bead substrate 32 is clamped between the shell 1 and the heat radiating seat 5, so that the cooling speed of the lamp bead 31 is increased, and the continuous working time of the LED lamp is prolonged.

In order to adjust the light emitting direction when the LED lamp is mounted on the device substrate 6 with the spherical concave surface, one side of the heat dissipation seat 5 is provided with a spherical convex surface 51 for mounting on the device substrate 6 with the spherical concave surface, the other side is provided with a heat conduction plane 52 for attaching the lamp bead substrate 32, and the heat dissipation seat 5 is also provided with a clamping piece 7 matched with the spherical convex surface. Therefore, the spherical convex surface 51 is designed so that the heat sink 5 can keep its contact with the spherical concave surface of the device substrate 6 while the spherical concave surface swings relatively. Since the connection between the heat sink 5 and the device substrate 6 is generally achieved by a bolt connection, i.e. a hole needs to be formed in the spherical concave surface, and since the swing of the heat sink needs to be formed with a through hole larger than the diameter of the bolt, the clip needs to be engaged to clamp the device substrate 6 between the heat sink 5 and the clip 7.

In order to better guide the heat of the lamp bead substrate 32 to the heat dissipation seat 5, a heat conduction silica gel strip is further arranged between the lamp bead substrate 32 and the heat dissipation seat 5.

Preferably, the filter 2 is a dichroic filter or a prism; the color temperature of the first light emitting element 3a is different from the color temperature of the second light emitting element 3 b.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the utility model.

Claims

1. A light-emitting device for an oral cavity lamp is characterized by comprising a shell, a light-emitting assembly and a light filter arranged in the shell, wherein the light-emitting assembly comprises a first light-emitting element and a second light-emitting element, and the first light-emitting element and the second light-emitting element respectively correspond to the front side and the back side of the light filter;

2. The light-emitting apparatus according to claim 1, wherein a lens is provided at each of the light exit hole and the light entrance hole on the housing.

3. A light emitting device according to claim 2, wherein said housing is provided with a lens receiving groove for mounting said lens.

4. The light-emitting device according to claim 2, wherein the lens disposed at the light exit hole is an outer fly's eye lens, and the lens disposed at the light entrance hole is a collimating lens.

5. The lighting device according to claim 1, wherein a filter card slot for mounting the filter is provided in the housing.

6. The lighting device of claim 1, wherein the first and second light emitting elements each comprise a lamp bead and a lamp bead substrate, and the lamp bead is disposed corresponding to the light inlet.

7. The lighting device of claim 6, wherein said lamp bead substrate is provided with a heat sink attached to said housing, said lamp bead substrate being sandwiched between said housing and said heat sink.

8. The lighting device as claimed in claim 7, wherein the heat sink has a spherical convex surface on one side for mounting on a device substrate having a spherical concave surface, and a heat conducting plane on the other side for attaching the lamp bead substrate, and the heat sink is further provided with a clip adapted to the spherical convex surface.

9. The lighting device according to claim 7, wherein the housing comprises a main housing and a housing cover, the main housing and the housing cover are each provided with a protrusion for defining the position of the optical filter, the main housing and the housing cover are closed, and the optical filter is sandwiched between the two protrusions.

10. The light-emitting device according to claim 1, wherein the filter is a dichroic filter or a prism;