JP6243162B2 - Light emitting element module - Google Patents

Description

  The present invention relates to a light emitting element module.

  Various structures have been proposed as light emitting element modules that require waterproofness. For example, in the light-emitting element module described in Patent Document 1, the housing that houses the substrate on which the light source is mounted has an opening between the flat plate and a part of the periphery of the substrate so as to surround the substrate. And a side plate erected on the flat plate. And the resin is filled inside the side plate of the housing so as to cover the surface of the substrate.

JP 2011-233356 A

  In the conventional light emitting element module, the resin is sealed to the lower side of the substrate in the region inside the side plate of the housing. In such a structure, it takes time to dry the resin, and it is required to further improve the ease of production. That is, it is required to easily manufacture while ensuring sufficient waterproof performance. As described above, there is a demand for a light-emitting element module that can be easily manufactured and can ensure sufficient waterproof performance.

  A light-emitting element module according to one embodiment of the present invention controls a light-emitting element that generates light, a substrate on which the light-emitting element is mounted, a mounting surface side of the substrate, and emission of light generated by the light-emitting element. A light control unit, a sealing unit disposed on the mounting surface side of the substrate so as to surround at least the light emitting element when viewed in a direction perpendicular to the mounting surface, and a pressing structure for applying a pressing force to the sealing unit; The sealing part seals at least the space between the substrate and the light control part on the inner peripheral side of the sealing part by a pressing force.

  According to such a form, the sealing portion is disposed on the mounting surface side of the substrate so as to surround at least the light emitting element when viewed in the direction perpendicular to the mounting surface. The sealing portion seals at least a space between the substrate and the light control portion on the inner peripheral side of the sealing portion by a pressing force applied by the pressing structure. That is, the sealing unit can prevent water from entering the space by sealing the space around the light emitting element between the substrate and the light control unit. In addition, since the sealing portion is disposed so as to surround the light emitting element when viewed in the direction perpendicular to the mounting surface and the pressing structure applies only a pressing force, the manufacturing can be easily performed. . As described above, manufacturing can be easily performed and sufficient waterproof performance can be ensured.

  In the light emitting element module according to another aspect, the sealing portion may be constituted by a sealing member separate from the member including the light control portion.

  In the light emitting element module according to another aspect, the sealing member may include an adhesive layer on the light control unit side.

  In the light emitting element module according to another aspect, the sealing member may be made of foamed silicone.

  In the light emitting element module according to another aspect, the sealing portion may be disposed so as to overlap the light control portion when viewed in a direction perpendicular to the mounting surface.

  A light emitting element module according to another aspect further includes a cover member that covers the mounting surface side of the substrate, and the cover member is formed with an opening in which the light control unit is disposed on the inner peripheral side, and the inner edge of the opening And the light control unit may be separated in a direction parallel to the mounting surface, so that at least a part of the mounting surface of the substrate may be exposed.

  The light emitting element module which concerns on another form is further provided with the cover member which covers the mounting surface side of a board | substrate, and a board | substrate and a cover member may be connected by the fastening member.

  In the light emitting element module according to another aspect, the tightening member is a screw, and the substrate and the cover member may be coupled by tightening the screw from the surface opposite to the mounting surface of the substrate toward the cover member. .

  According to one aspect of the present invention, it is possible to easily manufacture and secure a sufficient waterproof performance.

FIG. 1 is a perspective view of the light emitting element module according to the embodiment. FIG. 2 is a plan view of the light emitting element module according to the embodiment. FIG. 3 is an exploded perspective view of the light emitting element module according to the embodiment on a plane side. FIG. 4 is an exploded perspective view of the bottom surface side of the light emitting element module according to the embodiment. FIG. 5 is a cross-sectional view taken along line VV shown in FIG. FIG. 6A is a schematic view showing a structure near the sealing member, and FIG. 6B is a schematic view showing an adhesive layer. FIG. 7 is a schematic view of a light emitting element module according to a modification. FIG. 8 is a table showing specifications and evaluation results of the light-emitting element module according to the example. FIG. 9 is a table showing the evaluation results of the light emitting element module according to the example. FIG. 10 is a diagram illustrating an evaluation result of the light emitting element module according to the example.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the description of the drawings, the same or equivalent elements are denoted by the same reference numerals, and redundant description is omitted.

  First, with reference to FIGS. 1-4, the structure of the light emitting element module 1 which concerns on this embodiment is demonstrated. The light emitting element module 1 is, for example, a light emitting element module used for a signboard or a channel character installed outside a store. When it is installed outdoors, there is a problem that water enters the light emitting element module 1 due to rain, dew condensation in winter, etc., and the light emitting element module 1 is sufficient to prevent such intrusion of water. It has a good waterproof performance.

  As shown in FIGS. 1 to 5, the light emitting element module 1 includes a light emitting element 11 that generates light, a substrate 12 on which the light emitting element 11 is mounted, and a mounting surface 12 a side of the substrate 12. And a light control unit 13 that controls emission of light generated in step S4, and a seal that is disposed on the mounting surface 12a side of the substrate 12 so as to surround at least the light emitting element 11 when viewed in a direction perpendicular to the mounting surface 12a. Part 14, a cover member 16 that covers the mounting surface 12 a side of the substrate 12, and a pressing structure 17 that applies a pressing force to the sealing part 14. In the present embodiment, the “optical axis” is the optical axis of outgoing light emitted from the light emitting element module 1. In addition, although the X axis, the Y axis, and the Z axis are set for each drawing, they are set for convenience of explanation. In the present embodiment, the Z axis is set in the optical axis direction, which is the direction in which the optical axis RL extends. The light from the light emitting element module 1 is emitted in the positive direction of the Z axis, the light emission side (that is, the Z axis positive side) is “table”, and the opposite side (that is, the Z axis negative side) is “ These words are used as the “back”.

  The light emitting element 11 is a light emitter that generates light when supplied with driving power. As the light emitting element 11, for example, a light emitting diode (LED) that generates light by flowing a current through a compound such as gallium arsenide or gallium nitride is used. In addition, you may use the thing provided with the fluorescent substance in order to obtain lights other than the luminescent color of LED itself as the light emitting element 11. FIG. For example, the light-emitting element 11 may be one in which the LED is covered with a resin material or sheet mixed with a phosphor, or one in which a phosphor is applied to the light-emitting surface of the LED. Here, one light emitting element 11 may be mounted on the substrate 12, or a plurality of light emitting elements 11 may be mounted on the substrate 12. When the number of the light emitting elements 11 is one, the light emitting elements 11 are arranged on the mounting surface 12 a of the substrate 12 so that the optical axis thereof coincides with the optical axis RL of the light emitting element module 1.

  The substrate 12 is a rectangular plate-like member on which the light emitting element 11 is mounted. For example, an aluminum substrate, a copper substrate, a glass epoxy substrate, a glass composite substrate, or the like can be used. In the present embodiment, the substrate 12 is disposed so that the mounting surface 12a extends in the X-axis direction and the Y-axis direction so as to be orthogonal to the optical axis RL, and the rectangle in which the Y-axis direction is the longitudinal direction. The shape is not particularly limited, and any shape such as a square shape or a circular shape may be adopted. The surface of the substrate 12 is configured as a mounting surface 12a on which the light emitting element 11 and the light control unit 13 are mounted. A wiring pattern (not shown) made of copper foil is provided on the mounting surface 12a. The wiring pattern is a wiring that supplies driving power to the light emitting element 11, and is electrically connected to a power source (not shown) outside the substrate 12 through the wire 21. The wire 21 is used to electrically connect the plurality of light emitting element modules 1 in series or in parallel. In each figure, only the electrode part 22 connected to the wire 21 is shown in the wiring pattern.

  Two electrode portions 22 are provided at positions on both ends in the longitudinal direction (Y-axis direction) of the mounting surface 12a of the substrate 12 (see particularly FIG. 3). The electrode portion 22 is connected to the wire 21 by soldering, and a solder portion 23 is formed by the soldering. The wires 21 connected to the electrode portions 22 are drawn outward from the edge portions on both sides in the longitudinal direction (Y-axis direction) of the substrate 12. However, the position where the electrode portion 22 is provided and the direction in which the wire 21 is pulled out are not particularly limited, and the electrode portion 22 is provided on the end side in the short direction (X-axis direction) of the substrate 12 so that the short direction ( The wire 21 may be pulled out in the (X-axis direction). Note that an electrode portion (not shown) connected to the light emitting element 11 is provided at the center of the mounting surface 12a. By connecting the light emitting element 11 to this electrode portion, driving power is supplied to the light emitting element 11.

  In addition, semicircular cutouts 12c are formed at the four corners of the substrate 12 (see FIGS. 3 and 5). Further, the substrate 12 is formed with through holes 15A and 15B through which the screws 53A and 53B constituting the pressing structure 17 are inserted. The arrangement of the through holes 15A and 15B will be described later together with the pressing structure 17. Further, a bottomed hole 12 d for aligning the light control unit 13 is formed in the mounting surface 12 a of the substrate 12. However, in the present invention, the shape is not essential, and the present invention is not limited to such a form.

  The light control unit 13 controls emission of light generated by the light emitting element 11 so that the light emitting element module 1 can emit emitted light according to desired characteristics. That is, the light control unit 13 transmits the light generated in the light emitting element 11 into the light control unit 13 to control how the light spreads, and in the state where the light intensity at each orientation angle is controlled. To do. In the present specification, the light at the previous stage generated by the light emitting element 11 and transmitted through the light control unit 13 is referred to as “light generated by the light emitting element”. The light emitted in a state controlled by the light control unit 13 corresponds to “emitted light” emitted as the light emitting element module 1. The light control unit 13 is configured by a hemispherical dome-shaped lens disposed on the mounting surface 12 a side of the substrate 12. In order to control the emitted light emitted from the light emitting element module 1, the light control unit 13 may be a convex lens, or a lens in which a part of the convex lens is formed in a concave lens shape. The light control unit 13 is disposed on the light emitting surface side of the light emitting element 11 so as to cover the light emitting element 11 at a position where the central axis coincides with the optical axis RL. The light control unit 13 is formed on the back side (Z-axis negative side) and is incident on the incident surface 13a on which light generated by the light emitting element 11 is incident. The light control unit 13 is formed on the front side (Z-axis positive side) and transmits through the light control unit 13. And an emission surface 13b (see FIG. 5) for emitting the emitted light as emission light.

  The emission surface 13b is formed in a substantially hemispherical dome shape, and is a surface that emits light that has passed through the light control unit 13 as emitted light so as to be directed to a member to be illuminated (for example, a signboard of a store). The exit surface 13b is formed to be curved with an arbitrary curvature radius, but is formed substantially parallel to the entrance surface 13a in the vicinity of the optical axis RL. The shape of the exit surface 13b is not particularly limited, and may be changed as appropriate according to the application and required characteristics of the light emitting element module 1. For example, the radius of curvature may be changed, and the portion parallel to the entrance surface 13a Need not be provided.

  The incident surface 13a includes a flat surface portion 13c formed in a flat shape and a guide portion 13d formed in a concave shape at the center position of the flat surface portion 13c (see FIGS. 4 and 5). The flat surface portion 13c faces the mounting surface 12a of the substrate 12 in parallel and is disposed at a position separated from the mounting surface 12a. The flat surface portion 13c can scatter light by being a rough surface (uneven surface). For example, when the flat surface portion 13c of the incident surface 13a is not a rough surface, the light that has not been transmitted through the light control portion 13 and reflected by the light emission surface 13b is reflected by the flat surface portion 13c, so that the emitted light emitted from the light control portion 13 May increase in part near the optical axis RL (see, for example, the part indicated by a two-dot chain line in FIG. 10), and ring-shaped unevenness may occur. On the other hand, by making the flat surface portion 13c of the incident surface 13a rough, the light reflected by the output surface 13b can be scattered by the flat surface portion 13c, thereby suppressing the occurrence of ring-shaped unevenness as described above. be able to. A guide portion 13d, which is a recess for guiding light generated by the light emitting element 11 to the emission surface 13b side, is formed at the center of the flat portion 13c. The guide portion 13d is configured as a depression with the optical axis RL as the central axis. In a state where the light emitting element 11 and the light control unit 13 are mounted on the mounting surface 12 a of the substrate 12, the guide unit 13 d is located immediately above the light emitting element 11.

  The light control unit 13 is formed with an annular part 26 formed over the entire circumference of the outer edge of the light control part 13 and flange parts 27A and 27B projecting outward from the annular part 26 in the radial direction. In this embodiment, the light control unit 13, the annular portion 26, and the flange portions 27A and 27B are configured as one member formed integrally. Such a “member including a light control unit” is referred to as a “lens member 28” in the following description. The lens member 28 may be manufactured by a method such as molding using a mold or cutting and polishing. As the material of the lens member 28 (that is, the material of the light control unit 13), for example, glass, acrylic resin, polycarbonate resin, silicone resin, or the like may be applied. In this embodiment, for example, as shown in FIG. 6, when a boundary line L <b> 1 that extends the flat portion 13 c to the outer peripheral side is set, an area on the emission surface 13 b side (Z-axis positive side) from the flat portion 13 c and the boundary line L <b> 1. May be regarded as the light control unit 13. Further, a portion protruding from the outer edge of the light control unit 13 to the outer peripheral side when viewed from the optical axis direction, that is, a portion on the outer peripheral side from the boundary line L2 shown in FIG. 6 may be regarded as the flange portions 27A and 27B. A portion between the boundary line L1 and the boundary line L2 may be regarded as the annular portion 26. However, in the present embodiment, the portion is referred to as an “annular portion”, but it may be a rectangular shape or other polygonal shape instead of a circular shape. Further, the “flange portion” does not need to be circular, and may be rectangular or other polygonal shapes.

  The annular portion 26 is formed so as to surround the outer periphery of the flat portion 13c. In the present embodiment, the annular portion 26 protrudes to the substrate 12 side (Z-axis negative side) from the plane portion 13c. The flange portions 27 </ b> A and 27 </ b> B are portions that project in an arc shape radially outward from the outer edge portion of the light control unit 13. In the present embodiment, a pair of flange portions 27A and 27B are provided. The flange portion 27A and the flange portion 27B are provided in regions facing each other across the optical axis RL. The flange portions 27 </ b> A and 27 </ b> B constitute a part of the pressing structure 17, and the entire lens member 28 is pressed toward the substrate 12 through the flange portion 27 when a pressing force is applied from another member. The detailed description of the flange portions 27A and 27B will be described later together with the pressing structure 17. In the present embodiment, in a state where the lens member 28 (that is, the light control unit 13) is mounted on the mounting surface 12a of the substrate 12, the incident surface 13a of the light control unit 13, the mounting surface 12a of the substrate 12, and the annular portion A space SP is formed between the space 26 and the terminal 26.

  The sealing unit 14 seals at least the space SP between the substrate 12 and the light control unit 13 on the inner peripheral side of the sealing unit 14 by the pressing force applied by the pressing structure 17. The sealing unit 14 seals a region on the inner peripheral side of the sealing unit 14, which is a region where the light emitting element 11 is disposed, in the space SP between the substrate 12 and the light control unit 13. Intrusion of water from a region on the outer peripheral side of the sealing portion 14 is prevented. The sealing unit 14 is disposed between the lens member 28 having the light control unit 13 and the substrate 12, that is, at the position on the incident surface 13 a side of the light control unit 13 and on the mounting surface 12 a side of the substrate 12. The sealing portion 14 is configured in an annular shape, and is arranged so that its central axis coincides with the optical axis RL. Since the light emitting element 11 is disposed on the optical axis RL, the sealing portion 14 is disposed so as to surround the light emitting element 11 when viewed in the direction perpendicular to the mounting surface 12a. The position of the light emitting element 11 and the position of the sealing portion 14 in the optical axis direction may be shifted up and down by providing a step on the mounting surface 12a. When viewed in a direction perpendicular to the mounting surface 12 a, the sealing portion 14 is disposed so as to surround the light emitting element 11.

  In the present embodiment, the sealing portion 14 is configured by a sealing member 29 that is separate from the lens member 28 (a member including the light control unit 13). The sealing member 29 is a member that functions as the “sealing portion” as described above, and is configured as one component independent of the “member including the light control portion (that is, the lens member)”. Note that the “sealing portion” in the claims corresponds to the sealing member 29 in the present embodiment, but the scope of the term is not limited to this, for example, when it is formed integrally with the lens member May refer to a part of the lens member (the deformation mode will be described later). In the following description of the present embodiment, the “sealing portion” and the “sealing member” will be described as words indicating the same thing.

  Here, the structure of the sealing member 29 will be described in more detail with reference to FIG. FIG. 6A is an enlarged schematic view of the peripheral structure of the sealing member 29 and a schematic view thereof. In order to facilitate understanding of the structure, the roughness of the flat surface portion 13c is shown deformed with respect to the cross-sectional view shown in FIG.

  As shown in FIG. 6A, the sealing member 29 is a member formed in an annular shape, and both end surfaces 29a and 29b in the optical axis direction (Z-axis direction) are planar. An end surface 29 a on the front side (Z-axis positive side) of the sealing member 29 is in contact with the lens member 28, and an end surface 29 b on the back side (Z-axis negative side) is in contact with the substrate 12. By applying a pressing force to the sealing member 29 by the pressing structure 17, the end surface 29 a comes into close contact with the lens member 28, and the end surface 29 b comes into close contact with the substrate 12. Accordingly, the sealing member 29 prevents water from entering from the boundary portion between the sealing member 29 and the lens member 28, and prevents water from entering from the boundary portion between the sealing member 29 and the substrate 12. The sealing member 29 is disposed so as to overlap the light control unit 13 when viewed from the optical axis direction. Therefore, the end surface 29a on the front side (Z-axis positive side) of the sealing member 29 is in surface contact with the flat portion 13c configured as a rough surface. An end surface 29b on the back side (Z-axis negative side) of the sealing member is in surface contact with the mounting surface 12a of the substrate 12. The outer diameter of the sealing member 29 substantially coincides with the outer diameter of the flat portion 13c (that is, the inner diameter of the annular portion 26). 6, the outer peripheral surface 29c of the sealing member 29 may be separated from the inner peripheral surface 26a of the annular portion 26, or may be brought into contact as shown in FIG. The inner diameter of the sealing member 29 is set such that the inner peripheral surface 29d is spaced at least radially outward with respect to the light emitting element 11, and is larger than the diameter of the guide portion 13d in this embodiment. In a state where the light control unit 13, the sealing member 29, and the light emitting element 11 are mounted on the mounting surface 12 a of the substrate 12, the light emitting element 11 is disposed in a region on the inner peripheral side with respect to the inner peripheral surface 29 d of the sealing member 29. Has been. That is, the sealing member 29 is arranged on the mounting surface 12a of the substrate 12 so as to surround the light emitting element 11 when viewed in the direction perpendicular to the mounting surface 12a.

  The thickness of the sealing member 29 in a state where no pressing force is applied is the size of the space SP in the optical axis direction (the dimension between the flat surface portion 13c and the mounting surface 12a of the substrate 12; (Dimensions indicated by) are set to the above dimensions. Therefore, the sealing member 29 is compressed by pressing the lens member 28 against the substrate 12 by the pressing structure 17 with the sealing member 29 sandwiched between the substrate 12 and the lens member 28. As a result, the end face 29 a comes into close contact with the lens member 28, and the end face 29 b comes into close contact with the substrate 12.

  In the present embodiment, the sealing member 29 includes a base layer 33 on the substrate 12 side and an adhesive layer 34 on the light control unit 13 side. The base layer 33 is a layer corresponding to the base portion of the sealing member 29, is made of an elastic member, and has a function of supporting the adhesive layer 34. The material of the base layer 33 can be selected from the viewpoints of heat resistance and color change. For example, transparent or translucent silicone or elastomer may be applied. Further, the hardness of the base layer 33 of the sealing member 29 is deformed following the concavo-convex shape of the wiring pattern formed on the mounting surface 12a of the substrate 12, and the Shore A hardness is 70 so that it can be in close contact with the mounting surface 12a. The following may be used. The thickness of the base layer 33 is set larger than that of the adhesive layer 34. The base layer 33 and the adhesive layer 34 are set to have the same shape and the same size as viewed from the optical axis direction, but they may have different shapes and sizes.

  The adhesive layer 34 has a viscosity of at least a surface portion having a predetermined value or more, and can be adhered in close contact with the contact surface. That is, the adhesive layer 34 is a layer that constitutes the end surface 29a of the sealing member 29, and deforms following the uneven shape of the flat surface portion 13c that is configured as a rough surface of the light control portion 13, and the flat surface portion This is a layer that can be in close contact with 13c. In the present embodiment, a double-sided tape 36 provided on the base layer 33 is applied as the adhesive layer 34. As shown in FIG. 6B, the double-sided tape 36 includes an adhesive layer 36a that adheres to the end surface 33a of the base layer 33, an adhesive layer 36b that adheres to the flat surface portion 13c that is a rough surface, an adhesive layer 36a, And a base material 36c separating the adhesive layer 36b. An adhesive that can adhere to the base layer 33 may be applied as the adhesive of the adhesive layer 36a. For example, a silicone-based adhesive can be used, and the light control unit 13 can be used as an adhesive of the adhesive layer 36b. On the other hand, an adhesive that can be adhered may be applied. For example, an acrylic adhesive may be used. Moreover, as the base material 36c, polyester or a nonwoven fabric can be used, for example. The adhesive layer 36b can be in close contact with the flat surface portion 13c so as to bite into the uneven shape of the flat surface portion 13c which is a rough surface (see, for example, the adhesive layer 34 in FIG. 6A). Therefore, the surface which contacts the rough surface which is a contact surface can be enlarged. In addition, although the double-sided tape 36 was illustrated as the adhesion layer 34, it is not limited to this, It is good also as a layer formed with a single adhesive.

  Returning to FIGS. 1 to 5, the configuration of the cover member 16 will be described. The cover member 16 protects each component mounted on the mounting surface 12a by covering the mounting surface 12a side of the substrate 12 while exposing the emission surface 13b of the light control unit 13. The cover member 16 is a substantially rectangular plate-like member that covers the mounting surface 12a side of the substrate 12, and a synthetic resin such as polycarbonate resin, acrylic resin, or ABS resin can be used as the material. The cover member 16 includes a base portion 41 that covers the mounting surface 12 a of the substrate 12, and a side wall portion 42 that surrounds the outer periphery of the substrate 12. The base portion 41 is disposed such that the back side (Z-axis negative side) back surface 41a faces the mounting surface 12a of the substrate 12 in parallel. The base portion 41 has a shape corresponding to the substrate 12 and has a rectangular shape whose longitudinal direction is the Y-axis direction. However, the base portion 41 may be appropriately changed according to the shape of the substrate 12. Good. The side wall part 42 is formed so as to cover the four side surfaces of the substrate 12 by extending from the four outer peripheral edge parts of the base part 41 to the back side (Z-axis negative side). That is, the length between the inner walls of the side wall portions 42 facing each other in the longitudinal direction (Y-axis direction) of the cover member 16 is substantially the same as the length in the longitudinal direction of the substrate 12. The length between the inner walls of the side wall portions 42 facing each other substantially coincides with the length in the short direction of the substrate 12. Further, of the four side wall portions 42 of the cover member 16, projecting portions 42 a projecting inward are formed in accordance with the semicircular shape of the notch portions 12 c paired in one diagonal direction ( (See FIG. 4). The protrusion 42a restricts displacement of the cover member 16 attached to the substrate 12 in the XY axis direction. In order to improve workability, a latch capable of fitting the substrate 12 to the protrusion 42a so that the position of the substrate 12 relative to the cover member 16 does not shift even if the entire light emitting element module 1 is turned in the positive direction of the Z axis. A structure may be provided.

  The base portion 41 of the cover member 16 has an opening 43 in which the light control unit 13 is disposed on the inner peripheral side, a potting portion 44 for potting the periphery of the solder portion 23 with the filler PT, and a drawer for pulling out the wire 21 Part 46 is formed. The base portion 41 is provided with bosses 47A and 47B for tightening the screws 53A and 53B. The configuration of the bosses 47A and 47B will be described later together with the description of the pressing structure 17.

  The opening 43 is a through-hole penetrating between the front surface 41 b and the back surface 41 a of the base portion 41 and is formed at the center position of the base portion 41. The opening 43 has a circular shape centered on the optical axis RL when viewed from the optical axis direction. A lens member 28 is disposed on the inner peripheral side of the opening 43. The light control unit 13 of the lens member 28 passes through the opening 43 and protrudes to the Z axis positive side from the surface 41 b of the base unit 41. The inner diameter of the opening 43 is larger than the outer diameter of the light control unit 13 (the outer diameter of the portion that spreads most outward in the radial direction). Accordingly, the inner edge 43a of the opening 43 and the light control unit 13 are separated in a direction parallel to the mounting surface 12a of the substrate 12 (that is, the XY axis direction and the direction orthogonal to the optical axis direction). Thus, at least a part of the mounting surface 12a of the substrate 12 is exposed in a region between the inner edge 43a of the opening 43 and the outer edge of the light control unit 13 when viewed from the optical axis direction (see FIG. 2). The opening 43 is provided with claw portions 51A and 51B protruding from the inner edge portion 43a to the inner peripheral side. The configuration of the claw portions 51A and 51B will be described later together with the description of the pressing structure 17.

  The potting portions 44 are respectively provided at positions corresponding to the solder portions 23 provided on the mounting surface 12 a of the substrate 12, that is, positions at both ends in the longitudinal direction (Y-axis direction) of the cover member 16. In the potting portion 44, an opening 48 penetrating between the front surface 41b and the back surface 41a is formed so that the solder portion 23 can be coated with the filler PT (colored in gray in FIGS. 1 and 5). Yes. The opening 48 has a rectangular shape when viewed from the optical axis direction. Further, in order to easily store the filler PT in the opening portion 48, side wall portions 49 protruding from the surface 41b so as to surround the opening portion 48 are formed at the four edge portions of the opening portion 48. The filler PT is not particularly limited as long as waterproof performance can be ensured. For example, a silicone resin, a modified silicone resin, a polyurethane resin, an acrylic resin, or the like can be used.

  The lead-out portion 46 is formed between the end portion in the longitudinal direction (Y-axis direction) of the cover member 16 and the potting portion 44. The lead portion 46 includes a plurality of guide grooves 51 for drawing the wire 21 from the solder portion 23 in the longitudinal direction (Y-axis direction) of the substrate 12. A region corresponding to the lead-out portion 46 protrudes to the front side (Z-axis positive side) from the surface 41b of the base portion 41, and a guide groove 51 is formed on the back surface 41a side of the protruding region. In the present embodiment, the three guide grooves 51 are formed with respect to the one extraction portion 46. However, since there are two wires 21 to be extracted, two guide grooves 51 may be provided. The guide groove 51 is a groove having a U-shaped cross section that extends in the longitudinal direction (Y-axis direction) of the cover member 16. The size and shape of the guide groove 51 are set according to the wire 21. The guide groove 51 extends from the outer peripheral surface of the side wall portion 42 of the cover member 16 to the opening 48 of the potting portion 44.

  Next, the pressing structure 17 will be described. The sealing of the space SP between the mounting surface 12a (substrate 12) and the incident surface 13a (light control unit 13) by the sealing unit 14 is realized by a pressing structure 17 that applies a pressing force to the sealing unit 14. ing. The “pressing structure” in the claims corresponds to the pressing structure 17 in the present embodiment, but the range covered by the term is not limited to this, and any structure can be used as long as a pressing force can be applied to the sealing portion 14. It is possible to adopt (the deformation mode will be described later). Specifically, the pressing structure 17 of the present embodiment includes the flange portions 27A and 27B of the lens member 28, the claw portions 51A and 51B of the cover member 16 that presses the flange portions 27A and 27B toward the substrate 12, and the sealing portion. 14 and a pressing force generator 52 that generates a pressing force to be applied to.

  As described above, the flange portions 27A and 27B of the lens member 28 are configured to project outward from the light control unit 13 in the radial direction. The flange portions 27A and 27B extend in parallel with the flat surface portion 13c. In the present embodiment, the size of the flange portion 27A and the flange portion 27B in the circumferential direction is set to a size that occupies about one quarter of the entire circumference of the light control unit 13, but is not particularly limited, and will be described later. Any size may be set as long as the size enough to make contact with the claw portion is secured. In addition, the size of the flange portion 27A and the flange portion 27B protruding in the radial direction may be set to any size as long as a contact allowance with a later-described claw portion can be secured. On the front side (Z-axis positive side) of the flange portion 27A, a rib 31 is provided at a central position in the circumferential direction. In addition, a columnar protruding portion 32 protruding toward the substrate 12 is provided on the back side (Z-axis negative side) of the flange portion 27A and the flange portion 27B. The flange portion 27A is provided with two protruding portions 32, and the flange portion 27B is provided with one protruding portion 32. The two protruding portions 32 of the flange portion 27A are provided in the vicinity of both end portions in the circumferential direction of the flange portion 27A, and the one protruding portion 32 of the flange portion 27B is provided at a central position in the circumferential direction of the flange portion 27B. However, the quantity and position of the protrusions 32 are not particularly limited, and may be changed as appropriate. The protrusions 32 provided on the flange portion 27A and the flange portion 27B are inserted into the bottomed holes 12d formed on the mounting surface 12a of the substrate 12, respectively. The tip of the protruding portion 32 is positioned close to the bottom surface of the bottomed hole 12d, whereby the lens member 28 is positioned in the optical axis direction. Thus, by providing the positioning structure in the optical axis direction, it is possible to suppress application of excessive pressing force to the sealing portion 14, and the lens member 28 is inclined with respect to the optical axis RL. It can also be suppressed that a non-uniform pressing force is applied to the sealing member 29. Moreover, the positioning of the lens member 28 with respect to the board | substrate 12 can be easily performed by such a protrusion part 32 and the bottomed hole 12d at the time of an assembly. The flange 27A is provided with a rib 31 on the front side (Z-axis positive side). By using the rib 31 as a mark, the lens member 28 can be easily assembled to the substrate 12.

  When the reference line L3 extending in one diagonal direction of the substrate 12 and the cover member 16 is set (see FIG. 2), the lens member 28 is the substrate so that the flange portions 27A and 27B are disposed on the reference line L3. 12 is implemented. In the present embodiment, the flange portions 27A and 27B are arranged so that the center positions in the circumferential direction of the flange portions 27A and 27B coincide with the reference line L3.

  The claw portions 51 </ b> A and 51 </ b> B protrude from the position on the upper end side of the inner edge portion 43 a of the opening portion 43 of the cover member 16 to the inner peripheral side. The front-side (Z-axis positive side) surfaces of the claw portions 51A and 51B are coincident with the surface 41b of the base portion 41, but may not be coincident. The surface on the back side (Z-axis negative side) of the claw portions 51A, 51B functions as a contact surface that contacts the surface on the front side (Z-axis positive side) of the flange portions 27A, 27B (see, for example, FIG. 6A). The portion 41 is disposed on the front side (Z-axis positive side) with respect to the back surface 41a. When viewed from the optical axis direction, the claw portion 51A and the claw portion 51B are disposed at positions facing each other across the optical axis RL. The claw portion 51A and the claw portion 51B are formed at positions corresponding to the reference line L3, the claw portion 51A is provided at a position where the flange portion 27A can be pressed, and the claw portion 51B can press the flange portion 27B. Provided in position. Two claw portions 51A are provided for one flange portion 27A, and two claw portions 51B are provided for one flange portion 27B. The pair of claw portions 51A is provided at a position close to the reference line L3 and in a shape and a position that are symmetrical with the reference line L3 (see FIG. 2). The pair of claw portions 51B are provided in a shape and a position that are symmetrical to the reference line L3 at a position close to the reference line L3 (see FIG. 2). Thus, pressing force can be transmitted in a well-balanced manner by pressing the two flange portions 27A and 27B with the two claw portions 51A and 51B. Moreover, the front-end | tip part of nail | claw part 51A, 51B may contact | abut with the outer-periphery edge vicinity of the light control part 13, and can align the light control part 13. FIG.

  The pressing force generator 52 generates a pressing force by connecting the substrate 12 and the cover member 16 with a fastening member. In the present embodiment, screws 53A and 53B are used as the fastening members. The “clamping member” in the claims corresponds to the screws 53A and 53B in the present embodiment, but the scope of the term is not limited to this, and the substrate 12 and the cover member 16 are tightened. Any structure can be adopted as long as it can be connected, bolts and nuts may be adopted as fastening members, rivets may be adopted, and members according to the fitting structure (for example, members protruding from the cover member 16) The substrate 12 and the cover member 16 are connected by fitting into the through-holes of the substrate 12. In this case, the two members may be connected while the substrate 12 and the cover member 16 are tightened. In the present embodiment, the pressing force generator 52 generates pressing force by screwing the substrate 12 and the cover member 16, and specifically, formed on the screws 53 </ b> A and 53 </ b> B and the cover member 16. Bosses 47A and 47B and through holes 15A and 15B formed in the substrate 12 are provided. In the present embodiment, the board 12 and the cover member 16 are coupled by tightening the screws 53A and 53B from the back surface 12b of the substrate 12 (the surface opposite to the mounting surface 12a) toward the cover member 16. Accordingly, screw holes 47a are formed in the bosses 47A and 47B of the cover member 16, and the through holes 15A and 15B of the substrate 12 are insertion holes through which the screws 53A and 53B are passed. Boss 47A, 47B protrudes from the surface 14a of the base part 41 to the front side (Z-axis positive side). This ensures a sufficient length of the screw hole 47a. Note that the screw holes 47a may be simply formed in the base portion 41 without providing the bosses 47A and 47B. The screw holes 47a (that is, the bosses 47A and 47B) of the cover member 16 and the through holes 15A and 15B of the substrate 12 are arranged at the same position when viewed from the optical axis direction. The centers of the boss 47A and the through hole 15A are arranged on the reference line L3, and are provided at positions on the outer peripheral side of the claw portion 51A (see FIG. 2). The centers of the boss 47B and the through hole 15B are arranged on the reference line L3, and are provided at positions on the outer peripheral side of the claw portion 51B (see FIG. 2).

  According to the pressing structure 17 as described above, the lens member 28 is mounted on the mounting surface 12a of the substrate 12 in a state where the sealing member 29 is loaded in the region in the annular portion 26 of the lens member 28, and the substrate 12 The mounting surface 12 a is covered with a cover member 16. In this state, no pressing force is applied to the sealing member 29. Next, the screws 53A and 53B are fastened from the back surface 12b side of the substrate 12 to the screw holes 47a of the bosses 47A and 47B through the through holes 15A and 15B. By the tightening, the substrate 12 and the cover member 16 are moved so as to be close to each other in the optical axis direction. Accordingly, the claw portions 51A and 51B are also moved to the mounting surface 12a side of the substrate 12, and the flange portions 27A and 27B are pressed against the substrate 12 side by the claw portions 51A and 51B, whereby the entire lens member 28 is moved to the substrate 12. Move to the side. Thus, a pressing force is applied to the sealing member 29 by being sandwiched between the substrate 12 and the lens member 28. The flange portions 27A and 27B, the claw portions 51A and 51B, the bosses 47A and 47B, and the like are provided at locations close to the reference line L3. Therefore, the pressing force generated by tightening the screws 53A and 53B is efficiently transmitted to the claw portions 51A and 51B and the flange portions 27A and 27B. In addition, although screwing may be performed also on the reference line L4 side set in the diagonal direction intersecting with the reference line L3, workability can be improved by performing only on the reference line L3 side, and the number of parts Can be reduced.

  Next, functions and effects of the light emitting element module 1 according to the present embodiment will be described.

  As a light emitting element module according to a comparative example, a structure in which a substrate and a lens (light control unit) are insert-molded will be described. Since such a light emitting element module is manufactured by insert molding, the cost at the time of molding is increased. In insert molding, since the shape and size of the lens need to be determined as a specific one in relation to the mold, it is difficult to change the lens flexibly according to the application.

  Moreover, as a light emitting element module according to another comparative example, waterproof performance is ensured by potting from the outside between the inner edge of the opening formed in the cover member and the outer peripheral edge of the lens (light control unit). The structure made will be described. In such a light emitting element module, it is necessary to accurately pot around the lens so that the optical characteristics do not change. Therefore, it is necessary to use a dedicated robot instead of manual work, and the cost increases. In addition, when a robot is used, it is necessary to change the setting (program) of the robot when changing the shape and size of the lens, which takes time and cost. Further, in the potting around the lens described above, a colored material as a potting filler cannot be used for optical reasons, and a filler (for example, silicone) having advantageous optical characteristics that is strong against deterioration due to ultraviolet rays or the like. However, such fillers are difficult to dry (about 24 hours) and workability is poor. Further, in the potting locations other than the above-described potting locations (potting locations where the wires and the electrodes of the substrate are connected), optical properties are not required, but they are used for potting around the lens from the viewpoint of workability. The same filler is used and the workability is poor. That is, in any of the light emitting element modules according to any of the comparative examples described above, it is difficult to achieve both sufficient waterproof performance and ease of manufacture.

  In addition, as a light emitting element module according to another comparative example, a substrate is disposed in an inner region of a housing, and a resin is filled in the inner region of the housing, thereby ensuring waterproof performance by covering the entire substrate with resin. The structure (for example, the structure of Patent Document 1) will be described. In such a structure, since the flat plate and the mounting portion are disposed on the back surface of the substrate and the filler (resin) is sealed on the back surface side of the substrate, the heat dissipation effect may be reduced. In addition, when a defect is found in the product inspection, workability for replacement and repair is reduced, and rework performance may not be ensured. In addition, since the amount of filler to be sealed is large and the periphery of the light emitting element is also covered, it is necessary to use a filler that has advantageous optical characteristics and is difficult to dry. Therefore, it takes time to dry the filler, and it is required to improve the ease of production.

  On the other hand, in the light emitting element module 1 according to the present embodiment, the sealing portion 14 is disposed on the mounting surface 12a side of the substrate 12 so as to surround at least the light emitting element 11 when viewed in the direction perpendicular to the mounting surface 12a. Has been. Further, the sealing unit 14 seals the space SP between the substrate 12 and the light control unit 13 on the inner peripheral side of the sealing unit 14 by the pressing force applied by the pressing structure 17. That is, the sealing unit 14 can prevent water from entering the space around the light emitting element 11 between the mounting surface 12 a of the substrate 12 and the incident surface 13 a of the light control unit 13. Therefore, it is possible to prevent water from entering the light emitting element 11 and to prevent the optical characteristics from being affected by the water entering the light incident surface 13 a side of the light control unit 13. In addition, since the sealing portion 14 is disposed so as to surround the light emitting element 11 when viewed in the vertical direction with respect to the mounting surface 12a and the pressing structure 17 is used to apply a pressing force, the manufacturing is easily performed. It can be carried out.

  Further, by adopting such a simple structure, it is not necessary to use insert molding as in the structure according to the comparative example described above, and high-precision potting is performed on the light control unit 13 using a robot. Since it is not necessary, the shape and size of the light control unit 13 can be flexibly selected according to the application. Moreover, since the waterproof performance with respect to the periphery of the light emitting element 11 related to the optical characteristics can be ensured without performing potting, it is not necessary to use a filler that is difficult to dry unlike the structure according to the above-described comparative example. Further, since the potting is not performed on the periphery of the light emitting element 11, the potting portion (potting portion 44) of the solder portion 23 to which the wire 21 is soldered is, for example, modified silicone resin, polyurethane resin, acrylic resin, or the like. It is possible to use a filler that is inexpensive and easy to dry. Therefore, the time for drying the filler can be shortened. Moreover, since the back surface 12b of the board | substrate 12 can be set as the structure which is not covered with another member and a filler, heat dissipation performance can be improved. In addition, even when a defect is found in the product inspection, the replacement work and the repair work can be easily performed, so that the rework performance can be improved. As described above, manufacturing can be easily performed and sufficient waterproof performance can be ensured.

  Further, in the light emitting element module 1 according to the present embodiment, the sealing portion 14 is configured by a sealing member 29 that is separate from the lens member 28 including the light control unit 13. In this way, by configuring the sealing member 14 and the lens member 28 including the light control unit 13 as separate members, the sealing member 29 is used as a common component regardless of the application, while the light control unit 13 The shape and size (that is, the shape and size of the lens member 28) can be flexibly selected according to the application.

  Moreover, in the light emitting element module 1 according to the present embodiment, the sealing member 29 includes the adhesive layer 34 on the light control unit 13 side. When the contact surface of the lens member 28 with respect to the sealing member 29 is a rough surface (plane portion 13c), the adhesive layer 34 of the sealing member 29 contacts the rough surface. Thereby, since the adhesiveness between the sealing member 29 and the lens member 28 (light control unit 13) is improved, the waterproof performance of the light emitting element module 1 can be further improved.

  Here, the inventors of the present invention, as a result of intensive research, ensure sufficient optical characteristics even if the sealing portion 14 is disposed on a part of the outer peripheral side of the incident surface 13a of the light control portion 13. I found that I can do it. Therefore, in the light emitting element module 1 according to the present embodiment, the sealing portion 14 is disposed so as to overlap the light control portion 13 when viewed in the direction perpendicular to the mounting surface 12a. Thereby, when viewed from the optical axis direction, it is not necessary to secure a space necessary only for disposing the sealing portion 14 (for example, the sealing portion 14 is disposed on the outer peripheral side of the light control portion 13). For this reason, it is not necessary to provide a large flange portion for this purpose, so that the light emitting element module 1 can be prevented from becoming large.

  The light emitting element module 1 according to the present embodiment further includes a cover member 16 that covers the mounting surface 12a side of the substrate 12, and the cover member 16 has an opening 43 in which the light control unit 13 is disposed on the inner peripheral side. And the inner edge 43a of the opening 43 and the light control unit 13 are separated in a direction parallel to the mounting surface 12a, so that at least a part of the mounting surface 12a of the substrate 12 is exposed. The substrate 12 is a member that generates heat when the light emitting element 11 emits light. Therefore, even if water permeates between the cover member 16 and the substrate 12, moisture can be released from the portion where the mounting surface 12 a of the substrate 12 is exposed by using the heat of the substrate 12.

  Moreover, the light emitting element module 1 according to the present embodiment further includes a cover member 16 that covers the mounting surface 12a side of the substrate 12, and the substrate 12 and the cover member 16 are connected by a fastening member. As the tightening member, a screw, a bolt and a nut, a rivet, a member related to a fitting structure, or the like can be employed. Thereby, the pressing structure 17 can be configured easily.

  Further, in the light emitting element module 1 according to the present embodiment, the tightening members are screws 53A and 53B, and by tightening the screws 53A and 53B from the back surface 12b of the substrate 12 toward the cover member 16, the substrate 12 and the cover are covered. The member 16 is connected. For example, when a configuration in which a screw is tightened from the cover member 16 side toward the substrate 12 (the present invention may include such a form as a modification), the through holes 15A and 15B of the substrate 12 are threaded. There is a need. However, when the threading operation fails, it is necessary to discard the expensive substrate 12. Further, since the substrate 12 has design restrictions and material restrictions, it is difficult to provide a boss or the like. On the other hand, when the configuration in which the screws 53A and 53B are tightened from the back surface 12b of the substrate 12 toward the cover member 16 is employed, the through hole of the cover member 16 may be a screw hole 47a. Since the cost of the cover member 16 is lower than that of the substrate 12, there is little influence on the cost when the threading operation fails. Further, since the cover member 16 has fewer design restrictions and material restrictions than the substrate 12, the screws 53A and 53B are provided by providing bosses 47A and 47B at portions corresponding to the through holes (screw holes 47a). Can be tightened sufficiently. Thereby, a pressing force can be generated reliably.

  The present invention has been described in detail based on the embodiments. However, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the scope of the invention. For example, the configuration in which the double-sided tape 36 is provided on the upper surface 14a of the sealing portion 14 has been described as a configuration for improving the adhesion between the sealing portion 14 and the flat portion 13c of the light control portion 13. The configuration for improving the adhesion with the rough surface of the lens is not limited to this.

  That is, as shown in FIG. 7A, a material having a high surface followability with respect to the incident surface 13a (rough surface) of the light control unit 13 is used as the material of the sealing member 129 constituting the sealing unit 114. By using, the adhesion between the sealing member 129 and the rough surface of the light control unit 13 may be improved. Specifically, the sealing member 129 may be made of foamed silicone. Thereby, it is not necessary to provide an adhesive layer such as a double-sided tape, and the sealing portion 114 can be formed of a single material. Further, as shown in FIG. 7B, the light control unit 13 and the sealing unit 214 may be formed as an integral member by forming the lens member 228 itself from an elastic material.

  Further, the sealing portion may not be disposed between the light control portion and the substrate. For example, when viewed from the optical axis direction, the sealing portion may be disposed on the outer peripheral side of the light control unit so as not to overlap the light control unit, and may be disposed so as to overlap only the flange portion. In this case, the flange portion has a sufficient size to arrange the sealing portion, and is formed over the entire circumference of the light control portion.

  Further, the shape of the lens member is not particularly limited, and any configuration may be adopted. For example, in the above-described embodiment, the back surfaces of the flange portions 27A and 27B are disposed closer to the substrate 12 than the flat surface portion 13c that is the incident surface of the light control unit. And the incident surface of the light control unit may be the same surface, or the lower surface of the flange portion may be disposed at a position farther from the substrate than the incident surface of the light control unit. Moreover, the annular part is abbreviate | omitted and the light control part may be provided with the flange part directly.

  Moreover, you may provide the groove | channel and guide part for positioning a sealing part in a board | substrate, a flange part, and a light-control part. However, when a groove or a guide part is provided in the light control unit, the position and size do not affect the optical characteristics.

  Further, the pressing structure is not limited to the structure using screws as in the embodiment. The pressing may be performed using a slide structure, or the cover member and the substrate may be firmly sandwiched and fixed by adhesion or welding with the pressing force remaining. Further, a large flange portion of the lens member may be secured, and the flange portion and the substrate may be directly screwed.

  Although not included in the present invention, as a reference form, instead of the sealing portion of the present invention, an adhesive is applied around the light emitting element in a ring shape, and the lens member is fixed to the substrate with the tubular adhesive. By doing so, a structure for sealing the space around the light emitting element can be given.

[Example]
Hereinafter, although the light emitting element module which concerns on one form of this invention based on an Example is demonstrated concretely, the structure of a light emitting element module is not limited to the following Example.

(Waterproof)
Prepare a plurality of light emitting element modules (Examples 1 to 3) with different conditions regarding the Shore A hardness of the sealing member and the presence or absence of the double-sided tape provided on the sealing member, and perform a waterproof test on each. Evaluation was performed. Moreover, the light emitting element module which concerns on Example 4 which comprised the sealing member as shown to Fig.7 (a) with foaming silicone was prepared, and evaluation was performed. The waterproof test is to determine whether or not the water is immersed when immersed in water at a depth of 1 m for 60 minutes or 24 hours. The presence or absence of water immersion was confirmed by observing the inside of the lens with a microscope. The structure of Examples 1-3 is the same as that of the Example shown in FIG. 1 etc. except the composition of a sealing member.

  As shown in FIG. 8A, the light emitting element module according to Example 1 has a Shore A hardness of 70 as the sealing member and is not provided with a double-sided tape. In the light emitting element module according to Example 2, the Shore A hardness of the sealing member is 50, and no double-sided tape is provided. In the light emitting element module according to Example 3, the sealing member had a Shore A hardness of 50, and a double-sided tape (manufactured by DIC: # 8625) was provided. In the light emitting element module according to Example 4, the sealing member was made of light emitting silicone (manufactured by Sun Polymer Co., Ltd.). In each example, the same filler was used for the light emitting element, the lens member, the cover member, and the potting portion.

  As shown in FIG. 8 (b), the results of the waterproof test for Examples 1 to 3 were acceptable in all examples under the condition of 60 minutes, with no water immersion confirmed for all samples. . Moreover, in Example 3, water immersion was not confirmed about all the samples also on the conditions for 24 hours, but it was a pass. From the above, it was confirmed that the waterproof performance can be further improved by providing a double-sided tape on the sealing member. In addition, as shown in FIG. 9, in Example 4 using a sealing member made of foamed silicone, water immersion was not confirmed for all samples under both 60 minutes and 24 hours conditions, and passed.

(Optical characteristics)
As a comparative example, a light-emitting element module in which the sealing member is omitted from Example 3 is prepared. With respect to the light-emitting element module according to the comparative example and the light-emitting element module according to Example 3, It was measured. The orientation angle indicates an angle with respect to the optical axis RL and is an angle indicated by α in FIG. As shown in FIG. 10, when the optical characteristics of Example 3 (graph indicated by a solid line) and the optical characteristics of a comparative example (graph indicated by a dotted line) are compared, the result is as shown in FIG. It is understood that even if the entrance surface of the control unit and the sealing member are brought into contact with each other, substantially the same optical characteristics as those of the comparative example in which the sealing member is not disposed are obtained. Further, referring to the graph of Example 3, the point where the light intensity is partially increased as shown by the two-dot chain line in FIG. Thus, it is confirmed that good optical characteristics are obtained.

  DESCRIPTION OF SYMBOLS 1 ... Light emitting element module, 11 ... Light emitting element, 12 ... Board | substrate, 12a ... Mounting surface, 13 ... Light control part, 14, 214 ... Sealing part, 16 ... Cover member, 17 ... Press structure, 28 ... Lens member, 28 128 ... sealing member (sealing part), 34 ... adhesive layer, 36 ... double-sided tape (adhesive layer), 43 ... opening.

Claims (7)

A light emitting element for generating light;
A substrate on which the light emitting element is mounted;
A light control unit that is disposed on the mounting surface side of the substrate and controls emission of light generated by the light emitting element;
A sealing portion disposed on the mounting surface side of the substrate so as to surround at least the light emitting element when viewed in a direction perpendicular to the mounting surface;
A cover member covering the mounting surface side of the substrate;
A pressing structure that applies a pressing force to the sealing portion by a tightening member that connects the substrate and the cover member ;
The sealing unit is a light emitting element module that seals at least a space between the substrate and the light control unit on the inner peripheral side of the sealing unit by the pressing force.   The light emitting element module according to claim 1, wherein the sealing portion is configured by a sealing member separate from a member including the light control unit.   The light emitting element module according to claim 2, wherein the sealing member includes an adhesive layer on the light control unit side.   The light emitting element module according to claim 2, wherein the sealing member is made of foamed silicone.   The light emitting element module according to claim 1, wherein the sealing portion is disposed so as to overlap the light control portion when viewed in a direction perpendicular to the mounting surface. A cover member covering the mounting surface side of the substrate;
The cover member is formed with an opening on the inner peripheral side where the light control unit is disposed,
The inner edge part of the said opening part and the said light control part are spaced apart in the direction parallel to the said mounting surface, and at least one part of the said mounting surface of the said board | substrate is exposed. The light emitting device module according to 1. The fastening member is a screw,
These screws toward the surface opposite to the mounting surface of the substrate to the cover member, the substrate and the said cover member is connected, the light emitting device module of claim 1.