JP3172647U - Reflection unit and light source module thereof - Google Patents

Abstract

The present invention provides a reflection unit and a light source module thereof that effectively prevent a dropout due to a small contact area and improve the installation quality ratio of the reflection component.
A reflection unit is used in combination with a light guide component, and the light guide component includes a light incident portion and a light exit portion. The light exit portion includes a concave tank recessed toward the light entrance portion, the reflection unit includes a fixing component 162 and a reflection component 164, and the fixing component is installed at a peripheral edge of the uppermost end of the light output portion, A reflective component is installed on the fixed component to seal the first concave tank 1482 to form a conical light transmission space 19.
[Selection] Figure 2

Description

  The present invention relates to a light source module, and more particularly to a light source module of a kind of light emitting diode.

  A light emitting diode (LED) is a kind of semiconductor component that achieves a light emitting effect by converting electrical energy into light energy mainly by a semiconductor compound. As a result, it has the advantages of long life, improved stability and reduced electricity consumption, and is now widely applied in residential, office, outdoor and portable lighting, and conventional non-directional light sources such as fluorescent lamps and incandescent lamps Have migrated from.

  Since the light emitting diode is a point light source and has high directivity, the irradiation surface of the light emitting diode is narrower than that of a known light source. Therefore, it is applied to short-distance and small-area lighting, for example, table lamps.

  In order to apply light-emitting diodes to other lighting fixtures, such as incandescent bulbs or candlelights, many manufacturers reinforce the problem that the light intensity becomes too low by assembling and arranging multiple light-emitting diodes to concentrate light emission. is doing.

  The problem to be solved is that if the number of light-emitting diodes used increases, the power required to drive the light-emitting diodes increases, and a power saving effect cannot be achieved. Because it is much more expensive than a light source, the user's willingness to use a light emitting diode illuminator is reduced.

  The present invention is used in combination with a light guide component, and the light guide component includes a light entrance portion and a light exit portion. The light exit portion includes a concave tank that is recessed toward the light entrance portion, the reflection unit includes a fixed component and a reflective component, and the fixed component is installed at a peripheral edge of the light output portion uppermost end, and the reflective component The most important feature is that it is installed on the fixed part to seal the first concave tank to form a conical light transmission space.

  The reflection unit and the light source module of the present invention have the advantages of effectively preventing the situation of falling off due to a small contact area and improving the installation good rate of the reflection parts.

It is a three-dimensional view of the light source module of the first embodiment of the present invention. It is sectional drawing of the light source module of 1st Example of this invention. It is another one-dimensional view of the light source module of the first embodiment of the present invention. It is a distribution map of the light intensity which a light ray passes through this light guide component. It is a distribution map of the light intensity which a light ray passes through the light source module. It is a three-dimensional view of the light source module of the second embodiment of the present invention. It is sectional drawing of the light source module of the 3rd Example of this invention. It is a three-dimensional view of the light source module of the fourth embodiment of the present invention.

  In view of the disadvantages of the known technology, the reflection unit is used in combination with a light guide component, and the reflection unit reflects the light intensity distribution of the light beam emitted from the light emitting component and reflecting the light beam that has passed through the light guide component. It is an object of the present invention to provide a reflection unit used for changing.

  It is another object of the present invention to provide a light source module that effectively expands the emission angle of a light beam that has passed therethrough.

  To achieve the above object, the present invention provides a reflection unit. The reflection unit is used in combination with a light guide component, and the light guide component includes a light entrance portion and a light exit portion. The light exit portion includes a concave tank that is recessed toward the light entrance portion. The reflection unit includes a fixed component and a reflective component, and the fixed component is installed at the peripheral edge of the uppermost end of the light-emitting portion, and the reflective component is installed on the fixed component to seal the first concave tank and has a conical shape. Forming an optical transmission space.

  The present invention further provides a light source module. The light source module includes a light guide component, at least one light emitting component, and one reflection unit. The light guide component includes a light guide part, a light entrance part and a light exit part. The light incident part is connected to one side of the light guide part, the light output part is connected to another side of the light guide part, the light output part includes a flat surface and a first concave tank, the first concave tank Is recessed from the center of the plane toward the light guide. The light emitting component is installed in the light incident part. The reflection unit includes a fixed component and a reflective component, and the fixed component is installed at the peripheral edge of the uppermost end of the light output unit, and the reflective component is installed on the fixed component to seal the first concave tank and An optical transmission space is formed.

In the present invention, the fixed component is installed on the peripheral edge of the uppermost end of the light output part of the light guide component, and the reflective component is installed on the fixed component. In this way, it is possible to effectively prevent a situation where the reflective component and the light guide component contact with each other due to a small contact area.

  1 and 2 are a three-dimensional view and a cross-sectional view, respectively, of the light source module of the first embodiment of the present invention. The light source module 10 includes at least one light emitting component 12, one light guide component 14, and one reflection unit 16. The light-emitting component 12 has an optical axis I, and the light-emitting component 12 is used as a light-emitting source of the light source module 10 to provide a light source necessary for lighting the light source module 10. The number of the light emitting components 12 is one or many, but in this embodiment, one is taken as an example. Further, the light emitting component 12 is a light emitting diode or a polycrystalline packaging light emitting diode, and more preferably, the light emitting component 12 is a high power light emitting diode or a high power polycrystalline packaging light emitting diode.

  The light guide component 14 is installed on the light emitting component 12, the light guide component 14 is symmetrical with respect to the axis, and the central axis of the light guide component 14 and the optical axis I overlap. The light guide component 14 includes a light guide part 142, a light entrance part 144, a reduction part 146, and a light exit part 148. The light guide component 14 is made of polymethyl methacrylate (PMMA), acrylic (acryl), polycarbonate (PC), polyethylene terephthalate (PET), polyolefin (Polyolefin), a synthetic resin or a translucent material such as glass, and is injection molded. The column is formed by etching, hot press molding or cutting. Further, the translucent material may be transparent or non-transparent, and allows at least a part or all of the light emitted from the light emitting component 12 to pass therethrough. In addition, the light-transmitting material may be added with a single color or various colors to convert the light beam of the light guide component 14 into a necessary light color.

  The light guide 142 is a substantially cylindrical body, and is not limited to this in actual implementation. The light incident part 144 is connected to one side of the light guide part 142, and the light emitting component 12 is installed in the light incident part 144 and emits a light beam toward the light incident part 144. The diameter of the light incident portion 144 decreases as the distance from the light guide portion 142 increases, and in this way, the probability of total internal reflection (TIR) that a light ray enters the light incident portion 144 is increased. In addition, the probability of transmitting a light beam to the light guide unit 142 is increased.

  The reduced portion 146 is connected to the opposite side of the light guide portion 142 to the light incident portion 144, and the diameter of the reduced portion 146 gradually decreases as the distance from the light guide portion 142 increases.

  The light exit portion 148 is connected to the light guide portion 142 on the side opposite to the light entrance portion 144 connection side, and the diameter of the light exit portion 148 increases as the distance from the reduction portion 146 increases. The end of the light exit portion 148 includes a flat surface 1481 and a first concave tank 1482, and the first concave tank 1482 is recessed in a funnel shape from the central portion of the flat surface 1481 toward the light incident portion 144. The tank 1482 and the light output portion 148 form a first light output surface 1484 mutually. The central portion of the first concave tank 1482 further includes a second concave tank 1486 that is recessed in a conical shape toward the light incident part 144, and the second concave tank 1486 and the light output part 148 mutually communicate with the second light output part. Surface 1488 is formed. Among them, the opening angle θ2 of the second concave tank 1486 is smaller than the opening angle θ1 of the first concave tank 1482.

  The light guide component 14 further includes a bottom 150. The bottom 150 is connected to one side of the light incident portion 144 opposite to the side where the light guide 142 is connected, and the central portion of the bottom 150 is the light exit portion. A storage tank 1502 that is recessed toward the direction of 148, the light incident portion 144 and the storage tank 1502 form a light incident surface, and the light incident surface is directed toward the bottom 150. Projecting, that is, projecting away from the light exiting portion 148. In this way, the light rays incident from the light incident surface gather. The light emitting component 12 is installed in the storage tank 1502 and emits light toward the light incident surface. The bottom part 150 further includes a plurality of support parts 1504. As shown in FIG. 3, the plurality of support parts 1504 are installed on the bottom part 150 at substantially equal intervals, which are used to support the light guide part 14. The light guide component 14 is placed right above the light emitting component 12 to prevent the light emitting component 12 from being damaged.

  The light beam emitted from the light emitting component 12 is incident on the light guide component 14 from the light incident surface of the light incident portion 144, and the light incident portion 144 totally reflects the incident light in the light guide portion. 142, the light guide unit 142 guides the light beam to the reduction unit 146, and the reduction unit 146 reflects a part of the light beam and transmits it to the first light exit surface 1484 and the second light exit surface 1488. The light exits from the first light exit surface or the second light exit surface. Among them, the light intensity distribution diagram through which light passes through the light guide component is as shown in FIG. 4. The thick line in the figure is used to display the vertical light intensity distribution, and the thin line represents the horizontal light intensity distribution. Used for.

  As shown in FIGS. 1 and 2, the reflection unit 16 includes a fixed component 162 and a reflective component 164. The fixing component 162 is installed at the peripheral edge of the light emitting portion 148 at the uppermost end. In this embodiment, the fixing component 162 includes an annular convex portion. The fixed part 162 is made of a light-transmitting material such as polymethyl methacrylate (PMMA), acrylic (acrylic), polycarbonate (PC), polyethylene terephthalate (PET), polyolefin (Polyolefin), synthetic resin or glass, The fixed component 162 and the light guide component 14 are bonded to the peripheral edge of the uppermost end of the light output portion 148 by integral molding or at least one adhesive (not shown). In the present embodiment, the plurality of fixed parts 162 and the light guide part 14 are integrally molded.

  The reflective component 164 is installed on the fixed component 162 to seal the first concave tank 1482 and the second concave tank 1486, and the light source module 10 is conical between the light guide component 14 and the reflective component 164. And an optical transmission space 19 using air as an optical transmission medium. The light beam emitted from the first light output surface 1484 or the second light output surface 1488 is transmitted to the reflection component 164 through the light transmission space 19, and the reflection component 164 reflects the light beam and transmits the light beam to the first light output surface 19. The light enters the light guide component 14 through the one light exit surface 1484 or the second light exit surface 1488, and then exits through the peripheral surface of the light exit portion 148. Among them, the depression angle between the light beam emitted from the first light exit surface 1484 or the second light exit surface 1488 and the light beam incident from the first light exit surface 1484 or the second light exit surface 1488 is approximately an acute angle. In this way, the light refracting light output angle can be effectively expanded, and the light output angle of the light source module 10 is further increased. FIG. 5 shows a light intensity distribution diagram in which the light beam passes through the light source module 10.

  The reflective component 164 is, for example, a metal piece, a filter piece, or a plastic or glass piece coated with a glue provided with a resin material. Among them, the filter piece is a reflection type filter piece, and the glue is a color having a good reflection effect such as white or silver, and is limited when necessary or by adjusting the color of the reflective component 16 in the implementation. .

  Further, a tape material 18 is further included between the reflective component 164 and the fixed component 162 and used to adhere the reflective component 164 to the plurality of fixed components 162. The tape material 18 is preferably a double-sided tape.

  FIG. 6 is a three-dimensional view of the light source module of the second embodiment of the present invention. The light source module 10a of this embodiment is almost the same as the first embodiment described above. In different places, the fixed component 162a includes at least four convex columns 163a, and the plurality of convex columns 163a are installed at the peripheral edge of the uppermost end of the light output portion 148 at equal intervals. The plurality of convex columns 163a are adhered to the peripheral edge of the uppermost end of the light output portion 148 with an adhesive (not shown), or the plurality of convex columns 163a and the light guide component 14 are integrally molded. In the present embodiment, the plurality of convex columns 163a and the light guide component 14 are integrally formed as an example. The reflective component 164 is a tape material (not shown) installed on the plurality of convex columns 163 a to seal the first concave tank 1482 and the second concave tank 1486, and the light source module 10 a is connected to the light guide component 14. And an optical transmission space 19 which is formed in a conical shape between the reflecting parts 164 and uses air as an optical transmission medium. In this way, the light output angle of the light source module 20a is effectively expanded, and the situation where the plurality of convex pillars 163a drop off due to the small contact area between the reflective component 164 and the light guide component 14 is effectively prevented. And the installation non-defective rate of this reflective component 164 is improved.

  FIG. 7 is a cross-sectional view of a light source module according to a third embodiment of the present invention. The light source module 20 includes at least one light emitting component 22, one light guide component 24, and one reflection unit 26. The light emitting component 22 has an optical axis I, and the light emitting component 22 is mainly used to provide a light source necessary when the light source module 20 is turned on. The number of the light emitting components 22 is one or many, and in the present embodiment, one light emitting component 22 is taken as an example. The light emitting component 22 is a light emitting diode or a polycrystalline packaging light emitting diode, and the light emitting component 22 is preferably a high power light emitting diode or a high power polycrystalline packaging light emitting diode.

  The light guide component 24 is installed on the light emitting component 22. In the present embodiment, the light guide component 24 is a substantially cylindrical body, but is not limited to this when actually implemented. The light guide component 24 is made of a translucent material such as polymethyl methacrylate, acrylic, polycarbonate, polyethylene terephthalate, polyolefin, synthetic resin or glass, and is manufactured by a method such as injection molding, etching, hot press molding or cutting. Further, the light-transmitting material may be transparent or non-transparent in the columnar body, and at least a part or all of the light emitted from the light-emitting component 22 is allowed to pass therethrough. In addition, the light-transmitting material is added with a single color or various colors to change the light beam passing through the light guide component 24 into a necessary light color.

  The light guide component 24 includes a light guide part 242, a light entrance part 244, a light exit part 248 and a bottom part 250, and the light entrance part 244 and the light exit part 248 are adjacent to both sides of the light guide part 242.

  The end of the light exit portion 248 includes a flat surface 2481 and a first concave tank 2482, and the first concave tank 2482 is recessed from the flat surface 2481 toward the light incident portion 244 to form a first light exit surface 2484. In the present embodiment, the first concave tank 2482 has a conical shape.

  The bottom portion 250 is connected to the side of the light incident portion 244 opposite to the side where the light guide portion 242 is connected. The bottom portion 250 includes a storage tank 2502, and the storage tank 2502 extends from the bottom portion 250 to the light output section. The light emitting component 22 is installed in the storage tank 2502. The bottom portion 250 further includes a plurality of support components 2504. The plurality of support components 2504 are installed on the bottom portion 250 at substantially equal intervals and used to support the light guide component 24. The light emitting component 22 is installed directly above and prevents the light emitting component 22 from being pressed and damaged.

  The reflection unit 26 includes a fixed component 262 and a reflective component 264, and the fixed component 262 is installed at the peripheral edge of the light emitting unit 248 at the uppermost end. In this embodiment, the fixing component 262 is an annular convex portion. The fixed component 262 is made of a light-transmitting material such as polymethyl methacrylate, acrylic, polycarbonate, polyethylene terephthalate, polyolefin, synthetic resin, or glass, and the fixed component 262 and the light guide component 24 are integrally molded, or At least one adhesive (not shown) is adhered to the peripheral edge of the uppermost end of the light output portion 248. In this embodiment, the fixed component 262 and the light guide component 24 are integrally molded.

  The reflective component 264 is installed on the fixed component 262, the first concave tank 2482 is sealed, the light source module 20 is formed in a conical shape between the light guide component 24 and the reflective component 264, and air is light-transmitted. An optical transmission space 29 is provided as a transmission medium quality. The reflective component 264 is, for example, a metal piece, a filter piece, or a plastic or glass piece coated with a glue provided with a resin material, and the filter piece is preferably a reflective filter piece, and the glue is white or silvery and has a good reflection Colors with effects are preferred. When actually implemented, the actual need or the color of the reflective component 264 is adjusted and limited. In addition, the reflective component 264 is further bonded to the fixed component 262 with a tape material (not shown). In this way, the contact area between the reflective component 26 and the light guide component 24 is effectively increased, and the situation where the reflective component 26 falls off because the contact area with the light guide component 24 is small is prevented.

  FIG. 8 is a three-dimensional view of a light source module according to a fourth embodiment of the present invention. The light source module 20a of the present embodiment is substantially the same as that of the third embodiment described above, but different portions are a light output portion 248a of the light guide component 24a and a fixed component 264a of the reflection unit 26a. The central portion of the first concave tank 2482a of the light exit part 248a further includes a second concave tank 2486a having a conical recess toward the light incident part 244, and the opening angle of the second concave tank 2486a is the first concave tank 2486a. It is smaller than the opening angle of the one-concave tank 2482a.

  The fixed component 262a includes at least four convex columns 263a, and the plurality of convex columns 263a are installed at the peripheral edge of the light emitting portion 248a at the uppermost end at equal intervals. The plurality of convex columns 263a are adhered to the peripheral edge of the uppermost end of the light output portion 248 with an adhesive (not shown), or the plurality of convex columns 263a and the light guide component 24a are integrally formed. In this embodiment, the plurality of convex columns 263a and the light guide component 24a are integrally formed. The reflective component 264 is a tape material (not shown) installed on the plurality of convex columns 263a, seals the first concave tank 2482a and the second concave tank 2486a, and connects the light guide component 24a to the light source module 20a. In addition, a light transmission space using air as a light transmission medium is provided between the reflective component 264 and thus effectively prevents a situation where the reflective component 264 and the light guide component 24a are dropped due to a small contact area. And the installation non-defective rate of the reflective component 264 is increased.

  As described above, in the present invention, the fixed component is installed on the peripheral edge of the light emitting part uppermost end of the light guide component, and the reflective component is installed on the fixed component. In this way, it is possible to effectively prevent a situation where the reflective component and the light guide component contact with each other due to a small contact area. In addition, the reflection component can be installed in a lighting fixture such as a light bulb or a candle light that is often found in the market. Applied.

  The above are only preferred embodiments of the present invention and do not limit the scope of implementation of the present invention. That is, all changes and modifications based on the claims of the present invention shall be included in the claims of the present invention.

DESCRIPTION OF SYMBOLS 10 Light source module 10a Light source module 12 Light-emitting component 14 Light guide component 142 Light guide part 144 Light incident part 146 Reduction part 148 Light exit part 1481 Plane 1482 First concave tank 1484 First light exit surface 1486 Second concave tank 1488 Second light exit surface 150 Bottom 1502 Storage tank 16 Reflection unit 162 Fixed component 163a Convex column 164 Reflective component 18 Tape material 19 Light transmission space 20 Light source module 20a Light source module 22 Light emitting component 24 Light guide component 242 Light guide portion 244 Light incident portion 248 Light exit portion 2481 Plane 2482 First concave tank 248a Light exiting part 2481a Plane 2482a First concave tank 2486a Second concave tank 250 Bottom 2502 Storage tank 26 Reflecting unit 262 Fixed part 262a Fixed part 263a Convex pillar 264 Reflective part 28 Tape material 29 Optical transmission space I Light Axis θ Aperture angle θ2 aperture angle

Claims (20)

In a reflection unit including a first concave tank that is used in combination with a light guide component, the light guide component includes a light incident portion and a light exit portion, and the light exit portion is recessed toward the light incident portion.
A fixing part to be installed at the peripheral edge of the light emitting unit uppermost end;
A reflection unit comprising a reflection component that is installed on the fixed component and seals the first concave tank to form a conical light transmission space.   2. The reflection unit according to claim 1, wherein the fixed component includes at least four convex columns, and the plurality of convex columns are installed at a peripheral edge of the uppermost end of the light-emitting portion at equal intervals.   The reflection unit according to claim 1, wherein the fixed component is a ring-shaped convex portion.   The reflection unit according to claim 1, wherein the reflection unit further includes a tape material, and is installed between the fixed component and the reflection component.   The reflection unit according to claim 4, wherein the tape material is a double-sided tape.   The reflection unit according to claim 1, wherein the plurality of fixed parts and the light guide part are integrally molded.   2. The reflection unit according to claim 1, wherein the reflection component is a plastic piece or glass piece coated with a reflection piece, a filter piece, or a glue provided with a resin material. In the light source module including the light guide component and the reflection unit,
A light guide;
A light incident part connected to one side of the light guide part;
A light guide part connected to another side of the light guide unit, including a flat surface and a first concave tank, the first concave tank including a light output part that is recessed from the center of the plane toward the light guide part;
A fixing part to be installed at the peripheral edge of the light emitting unit uppermost end;
A light source module comprising a reflection unit including a reflection component that is installed on the fixed component and seals the first concave tank to form a conical light transmission space.   The light source module according to claim 8, wherein the fixed component includes at least four convex columns, and the plurality of convex columns are installed in the light-emitting portion at equal intervals.   The light source module according to claim 8, wherein the fixed component is a ring-shaped convex portion.   The light source module according to claim 8, wherein the reflection unit further includes a tape material and is disposed between the flat surface and the reflection component.   The light source module according to claim 11, wherein the tape material is a double-sided tape.   The light source module according to claim 8, wherein the plurality of fixed parts and the light guide part are integrally molded.   The light source module according to claim 8, wherein the diameter of the light incident portion gradually decreases as the light guide portion is moved away.   9. The light source module further includes a reduction part, connecting the light guide part and the light output part, and the diameter of the reduction part gradually decreases as the light guide part is moved away. The light source module described.   The light source module according to claim 15, wherein the diameter of the light emitting portion gradually decreases as the distance from the reduced portion increases.   9. The light source module according to claim 8, wherein the light source module further includes a bottom portion and is connected to an opposite side of the light incident portion connected to the light guide portion, and the bottom portion includes a plurality of support parts. .   The light source module according to claim 17, wherein the light source module includes a storage tank, and the storage tank is recessed from the bottom toward the light exiting part.   The light exit portion further includes a second concave tank, and is installed at a central location of the first concave tank, wherein the opening angle of the second concave tank is smaller than the opening angle of the first concave tank. Item 9. The light source module according to Item 8.   9. The light source module according to claim 8, wherein the reflective component is a plastic piece or glass piece coated with a reflective piece, a filter piece, or a glue provided with a resin material.

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