JP2021028918A - Optical device and system - Google Patents

Abstract

To provide positioning of an optical element and an irradiation target range.SOLUTION: An optical device includes a support B1 and an optical element 3 arranged on the support B1 and emitting light 890. The support B1 includes at least one positioning unit 7. At least one positioning unit 7 is used to position the optical element 3 and an irradiation target range 811 by fixing to a part of a member 810 having the irradiation target range 811 to be irradiated with the light 890 from the optical element 3.SELECTED DRAWING: Figure 1

Description

The present disclosure relates to optical devices and systems.

Conventional optical devices include, for example, a substrate, a light emitting element, a wiring pattern, a bonding layer, and a sealing resin. The wiring pattern is formed on the substrate. The light emitting elements are arranged in a wiring pattern via a bonding layer. The encapsulating resin is placed on the substrate and covers the light emitting element and the wiring pattern. When the light emitting element emits light, light is emitted from the optical device.

Japanese Unexamined Patent Publication No. 2014-82236

The present disclosure has been conceived under the above circumstances, and its main subject is to provide a more preferable optical device.

According to the first aspect of the present disclosure, the support comprises an optical element arranged on the support and emitting light, the support includes at least one positioning portion, and the at least one positioning portion is included. Provided is an optical device for positioning the optical element and the irradiation target range by fixing the light from the optical element to a part of a member having an irradiation target range. ..

According to the second aspect of the present disclosure, the optical device provided by the first aspect of the present disclosure, the wiring board on which the optical device is arranged, the joint portion for joining the optical device and the wiring board, and the irradiation. A system is provided that comprises said member having a target range.

Other features and advantages of the present disclosure will become more apparent with the detailed description given below with reference to the accompanying drawings.

It is a figure which shows a part of the system of 1st Embodiment. It is a figure which shows a part of the system of 1st Embodiment. It is a perspective view of the optical apparatus of 1st Embodiment. It is sectional drawing of the optical apparatus of 1st Embodiment. It is a top view of the optical apparatus of 1st Embodiment. It is a top view of the optical apparatus of 1st Embodiment. It is a top view of the optical apparatus of 1st Embodiment. It is a top view of the optical apparatus of 1st Embodiment. It is a top view of the optical apparatus of 1st Embodiment. It is a top view which shows the inner surface of the 2nd member of the optical apparatus of 1st Embodiment. It is a back view of the optical apparatus of 1st Embodiment. It is sectional drawing which shows typically enlarged part of the optical apparatus of 1st Embodiment. It is a top view of the modification of the optical apparatus of 1st Embodiment. It is a top view of the modification of the optical apparatus of 1st Embodiment. It is a top view of the modification of the optical apparatus of 1st Embodiment. It is sectional drawing of the optical element of the optical apparatus of 1st Embodiment. It is sectional drawing of the modification of the system of 1st Embodiment. It is sectional drawing at one time point of the manufacturing method of the optical apparatus shown in FIG. It is sectional drawing of the modification of the system of 1st Embodiment. It is sectional drawing of the modification of the system of 1st Embodiment. It is sectional drawing of the modification of the system of 1st Embodiment. It is sectional drawing of the modification of the system of 1st Embodiment. It is sectional drawing of the modification of the system of 1st Embodiment. It is sectional drawing of the modification of the system of 1st Embodiment. It is sectional drawing of the modification of the system of 1st Embodiment. It is sectional drawing of the modification of the system of 1st Embodiment. It is sectional drawing of the modification of the system of 1st Embodiment. It is sectional drawing of the modification of the system of 1st Embodiment.

Hereinafter, embodiments of the present disclosure will be specifically described with reference to the drawings.

In the present disclosure, "something A is formed on a certain thing B" and "something A is formed on a certain thing B" means "something A is formed" unless otherwise specified. It includes "being formed directly on the object B" and "being formed on the object B by the object A while interposing another object between the object A and the object B". Similarly, "something A is placed on a certain thing B" and "something A is placed on a certain thing B" means "something A is placed on a certain thing B" unless otherwise specified. It includes "being placed directly on B" and "being placed on a certain thing B while having another thing intervening between a certain thing A and a certain thing B". Similarly, "something A is laminated on a certain thing B" and "something A is laminated on a certain thing B" means "something A is laminated on a certain thing B" unless otherwise specified. It includes "being laminated directly on B" and "being laminated on a certain object B while having another object intervening between an object A and an object B". The polygon may include a complete polygon and a shape similar to a polygon. The circular shape may include a perfect circle and a shape similar to a circle.

<First Embodiment>
The first embodiment of the present disclosure will be described with reference to FIGS. 1 to 18.

FIG. 1 is a diagram showing a part of the system of the first embodiment. The system 800 shown in the figure includes an optical device A1, a wiring board 801, conductive portions 802, 803, a joint portion 805, and a member 810.

The optical device A1 may include an optical element 3 and a support B1. In the example shown in FIG. 1, the optical element 3 is arranged on the support B1 and emits light 890. Examples of light 890 may include, for example, laser light, visible light, and infrared light. In the present disclosure, the light 890 will be described as a laser beam, but the light 890 may be visible light or infrared light. The specific configuration of the optical device A1 will be described later.

The wiring board 801 is, for example, an insulating board. The wiring board 801 can be, for example, a flexible substrate or a glass epoxy substrate. The conductive portion 802 is arranged on the wiring board 801. The conductive portion 802 is made of a conductive material. The material constituting the conductive portion 802 is, for example, Cu. The material constituting the conductive portion 802 may be a material other than Cu. The conductive portion 802 is sometimes referred to as a wiring pattern. The conductive portion 803 is arranged on the wiring board 801. The conductive portion 803 is made of, for example, a conductive material, and can perform, for example, a heat dissipation function.

The joining portion 805 is for joining the optical device A1 to the wiring board 801. The joint 805 is made of, for example, a conductive material and is derived from, for example, solder. In the example shown in FIG. 1, the optical device A1 is arranged on the wiring board 801 via the joint portion 805. The joint 805 may be made of an insulating material.

The member 810 is fixed to the optical device A1. In the present embodiment, the member 810 includes an irradiation target range 811, a main body 812, and a plurality of positioning portions 813.

The irradiation target range 811 is irradiated with light 890 from the optical element 3. The irradiation target range 811 is a target range for irradiating the light 890 from the optical element 3. The shape of the irradiation target range 811 in a plan view may be any shape. For example, the shape of the irradiation target range 811 in a plan view may be rectangular, circular, or triangular. The irradiation target range 811 may be composed of optical components. Specific examples of the optical components that make up the irradiation target range 811 include, for example, mirrors, lenses, optical fibers, and transparent plates. In the example shown in FIG. 1, the irradiation target range 811 is fixed to the main body 812. In the example shown in FIG. 1, the optical component constituting the irradiation target range 811 is a transparent plate.

The main body 812 is typically a housing for electronic components. The material constituting the housing is, for example, resin. The main body 812 is not limited to the housing of electronic components. The irradiation target range 811 and the main body 812 do not have to be separate bodies, and the irradiation target range 811 and the main body 812 may be integrated.

The plurality of positioning units 813 (only one is shown in FIG. 1) are fixed to each of the plurality of positioning units 7 (described later) in the optical device A1. Each of the plurality of positioning portions 813 may be a concave portion or a convex portion. In the example shown in FIG. 1, each of the plurality of positioning portions 813 is a recess. Unlike the example shown in FIG. 1, a plurality of positioning portions 813 may be convex portions. In one modification, some of the plurality of positioning portions 813 may be concave portions, and some of the remaining may be convex portions. In another modification, the member 810 may not have a plurality of positioning portions 813 but may have only one positioning portion 813.

As shown in FIG. 2, the system 800 may further include an optical device 820. The optical device 820 is, for example, a light receiving device and includes a light receiving element. The light 890 from the optical device A1 is reflected by the target body 830 via the irradiation target range 811 and then received by the optical device 820.

FIG. 3 is a perspective view of the optical device of the first embodiment. FIG. 4 is a cross-sectional view of the optical device of the first embodiment. FIG. 5 is a plan view of the optical device of the first embodiment. FIG. 6 is a plan view of the optical device of the first embodiment. FIG. 11 is a back view of the optical device of the first embodiment.

The optical device A1 shown in these figures includes a first member 1, a second member 2, an optical element 3, a first conductive portion 41, a second conductive portion 43, a plurality of third conductive portions 45, and the like. It includes a first wire 51, a second wire 52, a functional element 58, a member 6, an insulating portion 81, and joining portions 83, 85, and 87. In FIG. 6, the member 6 is transparently shown. In the present disclosure, the first member 1, the second member 2, the first conductive portion 41, the second conductive portion 43, a plurality of third conductive portions 45, the member 6, the insulating portion 81, and the joint portion. The 85 and 87 form the support B1.

The first member 1 shown in FIG. 4 and the like is made of an insulating material or a conductive material. In the example shown in FIG. 4 and the like, the first member 1 is made of an insulating material. Examples of such an insulating material include an insulating resin or ceramic. Insulating resins include, for example, epoxy resins (which may include, for example, glass or paper), phenolic resins, polyimides, polyesters and the like. Examples of ceramics include Al ₂ O ₃ , SiC, and Al N. The first member 1 may have an insulating film formed on a substrate made of a conductive material such as aluminum. The first member 1 has a rectangular shape in a plan view (direction Z1 view).

As shown in FIGS. 4 and 6, the first member 1 has a first surface 11, a second surface 12, a first side surface 1A, a second side surface 1B, a third side surface 1C, and a fourth side surface 1D. The first surface 11, the second surface 12, the first side surface 1A, the second side surface 1B, the third side surface 1C, and the fourth side surface 1D are all rectangular, for example.

As shown in FIG. 4, the first surface 11 and the second surface 12 are separated from each other in the direction Z1 orthogonal to the first surface 11 and face opposite to each other. Both the first surface 11 and the second surface 12 are flat. The first surface 11 constitutes the first surface of the support B1.

As shown in FIG. 6, the first side surface 1A and the second side surface 1B are separated from each other in the first direction X1 and face opposite to each other. The first direction X1 is orthogonal to the direction Z1. Both the first side surface 1A and the second side surface 1B are connected to the first surface 11 and the second surface 12. Both the first side surface 1A and the second side surface 1B are flat.

The third side surface 1C and the fourth side surface 1D are separated from each other in the second direction Y1 and face opposite to each other. The second direction Y1 is orthogonal to the first direction X1 and the direction Z1. Both the third side surface 1C and the fourth side surface 1D are connected to the first surface 11 and the second surface 12. Both the third side surface 1C and the fourth side surface 1D are flat.

FIG. 7 is a plan view of the optical device of the first embodiment. In FIG. 7, a part of the configuration is seen through. As shown in FIGS. 4 and 7, a plurality of through holes are formed in the first member 1. The plurality of through holes formed in the first member 1 includes a plurality of first through holes 14 and one second through hole 15.

Each of the plurality of first through holes 14 penetrates the first member 1 and reaches the first surface 11 to the second surface 12 of the first member 1. As shown in FIG. 7, the shape of the plurality of first through holes 14 in a plan view may be circular. Alternatively, unlike FIG. 7, the shape of the plurality of first through holes 14 in a plan view may be a shape other than a circular shape (rectangular shape or triangular shape). FIG. 7 shows an example in which a plurality of first through holes 14 are formed, but unlike FIG. 7, only one first through hole may be formed. As shown in FIGS. 4 and 12 (the through hole is enlarged and shown), the plurality of first through holes 14 have an inner surface 14S. The inner surfaces 14S of the plurality of first through holes 14 are connected to the first surface 11 and the second surface 12. In the example shown in FIG. 12 and the like, the inner surfaces 14S of the plurality of first through holes 14 extend so as to intersect the direction Z1. In the figure, the inner surface 14S and the first surface 11 of the plurality of first through holes 14 form an acute-angled portion in the first member 1, and the inner surfaces 14S and the second of the plurality of first through holes 14 are formed. A portion forming an acute angle is formed on the first member 1 by the surface 12. Unlike FIG. 4 and the like, the inner surface 14S and the first surface 11 of the plurality of first through holes 14 form an obtuse angle portion in the first member 1, and the inner surfaces 14S of the plurality of first through holes 14 are formed. And the second surface 12 form an acute-angled portion of the first member 1. Alternatively, unlike the example shown in FIG. 4 and the like, the inner surfaces 14S of the plurality of first through holes 14 may extend along the direction Z1. In this case, the inner surface 14S and the first surface 11 of the plurality of first through holes 14 form a 90-degree portion on the first member 1, and the inner surfaces 14S and the second of the plurality of first through holes 14 are formed. The surface 12 can form a 90 degree portion on the first member 1.

Each of the second through holes 15 penetrates the first member 1 and reaches from the first surface 11 to the second surface 12 of the first member 1. As shown in FIG. 7, the shape of the second through hole 15 in a plan view may be circular. Alternatively, unlike FIG. 7, the shape of the second through hole 15 in a plan view may be a shape other than a circular shape (rectangular shape or triangular shape). FIG. 7 shows an example in which one second through hole 15 is formed, but unlike FIG. 7, a plurality of second through holes may be formed. The second through hole 15 has an inner surface 15S. The inner surface 15S of the second through hole 15 is connected to the first surface 11 and the second surface 12. In the examples shown in FIGS. 4 and 12, the inner surface 15S of the second through hole 15 extends so as to intersect the direction Z1. In the figure, the inner surface 15S and the first surface 11 of the second through hole 15 form an acute-angled portion of the first member 1, and the inner surface 15S and the second surface 12 of the second through hole 15 form an acute angle. , A portion having an acute angle is formed on the first member 1. Unlike FIG. 4 and the like, the inner surface 15S and the first surface 11 of the second through hole 15 form an acute-angled portion of the first member 1, and the inner surface 15S and the second surface of the second through hole 15 are formed. A portion forming an acute angle is formed in the first member 1 by the 12th member. Alternatively, unlike the example shown in FIG. 4 and the like, the inner surface 15S of the second through hole 15 may extend along the direction Z1. In this case, the inner surface 15S and the first surface 11 of the second through hole 15 form a 90-degree portion on the first member 1, and the inner surface 15S and the second surface 12 of the second through hole 15 form a 90-degree portion. , A portion forming a 90 degree can be formed on the first member 1.

As shown in FIGS. 4, 7, and 12, a gap 17 is formed in the first member 1. The gap 17 penetrates the first member 1 and reaches the first surface 11 to the second surface 12 of the first member 1. The void 17 is hollow. As shown in FIG. 7, the shape of the gap 17 in a plan view may be circular. Alternatively, unlike FIG. 7, the shape of the void 17 in a plan view may be a shape other than a circular shape (rectangular shape or triangular shape). FIG. 7 shows an example in which one void 17 is formed, but unlike FIG. 7, a plurality of voids 17 may be formed. As shown in FIG. 12, the void 17 has an inner surface 17S. The inner surface 17S of the gap 17 is connected to the first surface 11 and the second surface 12. In the example shown in FIG. 12, the inner surface 17S of the gap 17 extends along the direction Z1. Unlike the example shown in the figure, the inner surface 17S of the gap 17 may extend so as to intersect the direction Z1.

As shown in FIGS. 5 and 6, the first member 1 has a first region R1 and a second region R2. The first region R1 and the second region R2 are adjacent to each other in the first direction X1 with the virtual straight line LL in the plan view. The virtual straight line LL passes through the center C1 of the first member 1 in a plan view and extends in the second direction Y1.

The second member 2 is made of an insulating material or a conductive material. The second member 2 shown in FIG. 4 is made of an insulating material. Examples of such an insulating material include an insulating resin or ceramic. Insulating resins include, for example, epoxy resins (which may include, for example, glass or paper), phenolic resins, polyimides, polyesters and the like. Examples of ceramics include Al ₂ O ₃ , SiC, and Al N. The second member 2 may have an insulating film formed on a substrate made of a conductive material such as aluminum. The second member 2 has a rectangular shape in a plan view.

As shown in FIGS. 4 and 6, the second member 2 has a front surface 21, a back surface 22, a first side surface 2A, a second side surface 2B, a third side surface 2C, and a fourth side surface 2D. The front surface 21, the back surface 22, the first side surface 2A, the second side surface 2B, the third side surface 2C, and the fourth side surface 2D are all rectangular, for example.

As shown in FIG. 4, the front surface 21 and the back surface 22 are separated from each other in the direction Z1 orthogonal to the front surface 21 and face opposite to each other. Both the front surface 21 and the back surface 22 are flat.

As shown in FIG. 6, the first side surface 2A and the second side surface 2B are separated from each other in the first direction X1 and face opposite to each other. The first direction X1 is orthogonal to the direction Z1. Both the first side surface 2A and the second side surface 2B are connected to the front surface 21 and the back surface 22. Both the first side surface 2A and the second side surface 2B are flat.

The third side surface 2C and the fourth side surface 2D are separated from each other in the second direction Y1 and face opposite to each other. The second direction Y1 is orthogonal to the first direction X1 and the direction Z1. Both the third side surface 2C and the fourth side surface 2D are connected to the front surface 21 and the back surface 22. Both the third side surface 2C and the fourth side surface 2D are flat.

As shown in FIGS. 4 and 6, the first side surface 2A, the second side surface 2B, the third side surface 2C, and the fourth side surface 2D of the second member 2 are the first side surface 1A of the first member 1, respectively. , The second side surface 1B, the third side surface 1C, and the fourth side surface 1D may be flush with each other.

As shown in FIGS. 4, 6, 7, and the like, the second member 2 has an inner surface 24 surrounding the optical element 3. The inner surface 24 extends along the direction Z1. Unlike the present embodiment, the inner surface 24 may extend so as to intersect the direction Z1. The inner surface 24 is connected to the front surface 21 and the back surface 22. The inner surface 24 has a first site 241, a second site 242, a third site 243, a fourth site 244, a fifth site 245, a sixth site 246, a seventh site 247, and an eighth site 248. And have.

FIG. 10 is a plan view showing an inner surface 24 of a second member of the optical device of the first embodiment. In the example shown in the figure, the first part 241 and the third part 243, the fifth part 245, and the seventh part 247 are all curved in a plan view. In the present disclosure, the first part 241 and the third part 243, the fifth part 245, and the seventh part 247 are all curved from the optical element 3 toward the outside of the second member 2 in a plan view. ing. In the present disclosure, the first part 241 and the third part 243, the fifth part 245, and the seventh part 247 are each a part of a circular arc having a diameter R11 centered on the center C1 of the first member 1. .. Unlike the example shown in FIG. 24, the first part 241 and the third part 243, the fifth part 245, and the seventh part 247 are not curved in a plan view and may be linear. ..

In the example shown in FIG. 10, the second part 242, the fourth part 244, the sixth part 246, and the eighth part 248 are all curved in a plan view. In the present disclosure, the second part 242, the fourth part 244, the sixth part 246, and the eighth part 248 are all curved from the optical element 3 toward the outside of the second member 2 in a plan view. There is. In the present disclosure, the second part 242, the fourth part 244, the sixth part 246, and the eighth part 248 are each part of a circular arc having a diameter R12 (diameter R12 is smaller than the diameter R11). Is. The second site 242 is connected to the first site 241 and the third site 243, the fourth site 244 is connected to the third site 243 and the fifth site 245, and the sixth site 246 is connected to the fifth site 245. And the 7th site 247, and the 8th site 248 is connected to the 7th site 247 and the 1st site 241. Unlike the example shown in FIG. 10, the second part 242, the fourth part 244, the sixth part 246, and the eighth part 248 are not curved in a plan view and may be linear. ..

Unlike the example shown in FIG. 10, the inner surface 24 of the second member 2 may have a circular shape or a rectangular shape.

The joint portion 85 shown in FIG. 4 and the like is interposed between the first member 1 and the second member 2, and joins the first member 1 and the second member 2. The joint 85 is made of, for example, an epoxy-based, silicone-based, or acrylic-based material.

The optical elements 3 shown in FIGS. 4, 6 and the like are arranged on the first surface 11 of the first member 1. The optical element 3 irradiates light 890. The light 890 can be laser light, visible light, or infrared light. In the example shown in the figure, the light 890 is a laser beam.

In the examples shown in FIGS. 6 and 7, the area where the optical element 3 and the first region R1 overlap in the plan view is larger than half the area of the optical element 3 in the plan view. Unlike the examples shown in FIGS. 6 and 7, the area where the optical element 3 and the first region R1 overlap in the plan view may be the same as half the area of the optical element 3 in the plan view. Alternatively, the area where the optical element 3 and the first region R1 overlap in the plan view may be smaller than half the area of the optical element 3 in the plan view.

The optical element 3 disclosed in FIG. 6 is a laser diode, and more specifically, it is a VCSEL (Vertical Cavity Surface Emitting Laser) type laser diode. The optical element 3 is not limited to the VCSEL type laser diode. The optical element 3 disclosed in FIGS. 4 and 6 has, for example, a rectangular shape having a length of 100 to 1400 μm and a width of 100 to 1400 μm in a plan view. The thickness (dimension in direction Z1) of the optical element 3 disclosed in FIGS. 4 and 6 is, for example, 50 to 200 μm.

As shown in FIG. 6, the optical element 3 may include a plurality of light emitting units 35. The plurality of light emitting units 35 are arranged at different positions in a plan view. The plurality of light emitting units 35 are separated from each other in a plan view. Each of the plurality of light emitting units 35 irradiates light. The optical element 3 irradiates the planar light 890 along the direction Z1 by including the plurality of light emitting units 35. The light 890 emitted from the optical element 3 reaches the irradiation target range 811 (see FIG. 1) of the member 810.

As shown in FIGS. 4, 6 and 7, the optical element 3 includes a front surface 31, a back surface 32, a first side surface 3A, a second side surface 3B, a third side surface 3C, and a fourth side surface 3D. Including.

The front surface 31 and the back surface 32 are separated from each other in the direction Z1 orthogonal to the front surface 31 and face opposite to each other. Both the front surface 31 and the back surface 32 are flat. A plurality of light emitting units 35 are arranged on the front surface 31 side of the back surface 32.

The first side surface 3A and the second side surface 3B are separated from each other in the first direction X1 and face opposite to each other. The first direction X1 is orthogonal to the direction Z1. Both the first side surface 3A and the second side surface 3B are connected to the front surface 31 and the back surface 32. Both the first side surface 3A and the second side surface 3B are flat.

The third side surface 3C and the fourth side surface 3D are separated from each other in the second direction Y1 and face opposite to each other. The second direction Y1 is orthogonal to the first direction X1 and the direction Z1. Both the third side surface 3C and the fourth side surface 3D are connected to the front surface 31 and the back surface 32. Both the third side surface 3C and the fourth side surface 3D are flat.

An example of a specific structure of the optical element 3 will be described. FIG. 16 is a cross-sectional view of the optical element 3 of the optical device of the first embodiment, and shows an example of a cross-sectional view of a VCSEL type laser diode. In the example shown in FIG. 16, the optical element 3 includes a substrate 311 and a first semiconductor layer 312, a second semiconductor layer 313, an active layer 315, an insulating layer 317, a current constriction layer 318, and a first conductive layer. A layer 33 and a second conductive layer 34 are provided.

The substrate 311 is made of a semiconductor. The semiconductor constituting the substrate 311 is, for example, GaAs. The semiconductor constituting the substrate 311 may be other than GaAs.

The active layer 315 is composed of a compound semiconductor that emits light having a wavelength in the 980 nm band (hereinafter referred to as “λa”) by spontaneous emission and stimulated emission, for example. The active layer 315 is located between the first semiconductor layer 312 and the second semiconductor layer 313.

The first semiconductor layer 312 is typically a DBR (Distributed Bragg Reflector) layer, and is formed on the substrate 311. The first semiconductor layer 312 is made of a semiconductor having a first conductive type. In this embodiment, the first conductive type is n type. The first semiconductor layer 312 is configured as a DBR for efficiently reflecting the light emitted from the active layer 315. More specifically, the first semiconductor layer 312 is configured by stacking a plurality of pairs of AlGaAs layers having a thickness of λa / 4 and having two layers having different reflectances.

The second semiconductor layer 313 is typically a DBR layer, and is made of a semiconductor having a second conductive type. In this embodiment, the second conductive type is a p type. Unlike the present embodiment, the first conductive type may be p-type and the second conductive type may be n-type. The first semiconductor layer 312 is located between the second semiconductor layer 313 and the substrate 311. The second semiconductor layer 313 is configured as a DBR for efficiently reflecting the light emitted from the active layer 315. More specifically, the second semiconductor layer 313 is formed by superimposing a plurality of pairs of two layers, which are AlGaAs layers having a thickness of λa / 4 and have different reflectances.

The second semiconductor layer 313 has a surface 3131. The surface 3131 faces the side opposite to the side where the first semiconductor layer 312 is located.

As shown in FIG. 16, the current constriction layer 318 is located in the second semiconductor layer 313. The current constriction layer 318 is composed of, for example, a layer containing a large amount of Al and easily oxidized. The current constriction layer 318 is formed by oxidizing this easily oxidizable layer. The current constriction layer 318 does not necessarily have to be formed by oxidation, but may be formed by other methods (eg, ion implantation). An opening 3181 is formed in the current constriction layer 318. Current flows through the opening.

The insulating layer 317 is formed on the second semiconductor layer 313. The insulating layer 317 is made of, for example, SiO ₂ .

The first conductive layer 33 is formed on the insulating layer 317. The first conductive layer 33 is made of a conductive material (for example, metal).

As shown in FIG. 16, an opening 331A is formed in the first conductive layer 33.

The opening 331A exposes the insulating layer 317 and overlaps the active layer 315 in direction Z1. As can be seen from FIG. 16, the opening 331A overlaps the opening 3181 in the current constriction layer 318 in direction Z1. Each of the plurality of openings 331A defines the shape of the plurality of light emitting units 35 in a plan view.

As shown in FIG. 16, the first conductive layer 33 includes the portions 3333 and 339.

The portion 3333 penetrates the insulating layer 317. A current flows between the portion 3333 and the second semiconductor layer 313. The portion 339 is conductive to the surface 3131. A first wire 51 (see FIG. 6) is joined to the portion 339.

The second conductive layer 34 is formed on the lower surface of the substrate 311 in FIG. 16. The second conductive layer 34 is made of a conductive material (for example, metal). The substrate 311 is located between the second conductive layer 34 and the first semiconductor layer 312.

Unlike those shown in FIGS. 6 and 7, the optical element 3 may be the one shown in FIG. The number of light emitting units 35 of the optical element 3 of FIG. 13 is smaller than the number of light emitting units 35 of the optical element 3 of FIG. Alternatively, the optical element 3 may have only one light emitting unit 35 (see FIG. 14).

In the example shown in FIG. 4 and the like, at least a part of the first conductive portion 41, the second conductive portion 43, and the plurality of third conductive portions 45 is a current for supplying electric power to the optical element 3. Construct a route. The first conductive portion 41, the second conductive portion 43, and the plurality of third conductive portions 45 are made of, for example, a single type or a plurality of types of metals such as Cu, Ni, Ti, and Au. The first conductive portion 41, the second conductive portion 43, and the plurality of third conductive portions 45 can be formed by plating, for example, but are not limited thereto.

In the present embodiment, as shown in FIG. 12, each of the first conductive portion 41 and the second conductive portion 43 includes a plurality of layers. Specifically, the first conductive portion 41 and the second conductive portion 43 include a first conductive layer 491, a second conductive layer 492, and a third conductive layer 493, respectively. The first conductive layer 491 is made of, for example, Cu, the second conductive layer 492 is made of, for example, Ni, and the third conductive layer 493 is made of, for example, Au. A Pd layer may be arranged between the second conductive layer 492 and the third conductive layer 493. The thickness of the first conductive layer 491 is, for example, 20 to 40 μm, the thickness of the second conductive layer 492 is, for example, 1 to 10 μm, and the thickness of the third conductive layer 493 is, for example, 0. It is 05 to 0.2 μm.

FIG. 8 is a diagram in which the second member 2, the optical element 3, the first wire 51, the second wire 52, the functional element 58, and the like are omitted from FIG. 7. As shown in FIGS. 4 and 6 to 8, the first conductive portion 41 is formed on the first surface 11 of the first member 1. The first conductive portion 41 includes a first conductive portion 411 and a second conductive portion 412.

An optical element 3 is arranged at the first conductive portion 411. The first conductive portion 411 conducts to the second conductive layer 34 of the optical element 3.

As shown in FIGS. 8 and 9, the first conductive portion 411 has edges 411A to 411F. Edge 411A extends along the second direction Y1. The edge 411B connects to the edge 411A and extends along the first direction X1. The edge 411C connects to the edge 411B and extends along the second direction Y1. The edge 411D extends along the first direction X1. The edge 411E is connected to the edge 411D and extends along the second direction Y1. The edge 411F is connected to the edge 411E and the edge 411A and extends along the first direction X1.

The first conductive portion 411 has a first defective portion 4111, a second defective portion 4112, and a defective portion 4113. The first defective portion 4111, the second defective portion 4112, and the defective portion 4113 have a defective shape in a plan view. The first defective portion 4111, the second defective portion 4112, and the defective portion 4113 may be an opening formed in the first conductive portion 411 or a recess formed in the first conductive portion 411. In a specific example of the present disclosure, the first defective portion 4111 is an opening, the second defective portion 4112 is a recess recessed from the edge 411C, and the defective portion 4113 is a recess recessed from the edge 411D. The first defective portion 4111 and the second defective portion 4112 can be used as marks when the optical element 3 is arranged in the first conductive portion 41. At least a part of the defective portion 4113 overlaps the void 17 in a plan view.

In the present disclosure, an example is shown in which the first conductive portion 41 has two defective portions (first defective portion 4111 and second defective portion 4112), but the first conductive portion 41 has one defective portion or three or more defective portions. It may have a defective site. Alternatively, the first conductive portion 41 may not have a defective portion. Although the present disclosure shows an example in which the first conductive portion 41 has one defective portion 4113, the first conductive portion 41 may have two or more defective portions. Alternatively, the first conductive portion 41 may not have a defective portion. The defective portion and the position of the defective portion in the first conductive portion 41 are not limited to those shown in the figure, and can be changed.

The first wire 51 is joined to the second conductive portion 412. The second conductive portion 412 conducts to the first conductive layer 33 of the optical element 3 via the first wire 51. In a plan view, the area of the second conductive portion 412 is smaller than the area of the first conductive portion 411.

As shown in FIG. 8, the second conductive portion 412 has edges 412A-412D. The edge 412A extends along the second direction Y1. The edge 412B connects to the edge 412A and extends along the first direction X1. The edge 412C connects to the edge 412B and extends along the second direction Y1. The edge 412D is connected to the edge 412C and extends along the first direction X1.

As shown in FIGS. 4 and 11, the second conductive portion 43 is formed on the second surface 12 of the first member 1. As shown in FIG. 11, the second conductive portion 43 includes a first conductive portion 431, a second conductive portion 432, a third conductive portion 433, and a conductive portion 435. The first conductive portion 431, the second conductive portion 432, the third conductive portion 433, and the conductive portion 435 are separated from each other.

The first conductive portion 431 conducts to the first conductive portion 411 via the third conductive portion 45. The first conductive portion 431 has edges 431A to 431D. The edge 431A extends along the second direction Y1. The edge 431B connects to the edge 431A and extends along the first direction X1. The edge 431C connects to the edge 431B and extends along the second direction Y1. The edge 431D connects to the edge 431C and the edge 431A and extends along the first direction X1.

The second conductive portion 432 conducts to the second conductive portion 412 via the third conductive portion 45. The second conductive portion 432 has edges 432A to 432D. Edge 432A extends along the second direction Y1. The edge 432B connects to the edge 432A and extends along the first direction X1. The edge 432C is connected to the edge 432B and extends along the second direction Y1. The edge 432D is connected to the edge 432C and the edge 432A and extends along the first direction X1.

In the present disclosure, the third conductive portion 433 does not conduct with the first conductive portion 411 and the second conductive portion 412. Unlike the present disclosure, the third conductive portion 433 may be conductive to the first conductive portion 411 via the third conductive portion 45. The third conductive portion 433 has edges 433A to 433D. The edge 433A extends along the second direction Y1. The edge 433B connects to the edge 433A and extends along the first direction X1. The edge 433C connects to the edge 433B and extends along the second direction Y1. The edge 433D is connected to the edge 433C and the edge 433A and extends along the first direction X1.

In the present disclosure, the conductive portion 435 does not conduct with the first conductive portion 411 and the second conductive portion 412. Unlike the present disclosure, the conductive portion 435 may be conducted to the first conductive portion 411 via the third conductive portion 45. The conductive portion 435 has edges 435A-435D. The edge 435A extends along the second direction Y1. The edge 435B connects to the edge 435A and extends along the first direction X1. The edge 435C is connected to the edge 435B and has an arc shape. The edge 435D is connected to the edge 435C and the edge 435A and extends along the first direction X1.

As shown in FIGS. 11 and 12, the conductive portion 435 has a defective portion 4351. The defective portion 4351 has a defective shape in a plan view. The defective portion 4351 may be an opening formed in the conductive portion 435 or a recess formed in the conductive portion 435. In a specific example of the present disclosure, the missing portion 4351 is an opening. At least a part of the defective portion 4351 overlaps the void 17 in a plan view. In the example shown in FIG. 11, the edge 4352 of the defective portion 4351 has a closed shape surrounding the gap 17 in a plan view. The shape in FIG. 11 is a circular shape. Unlike FIG. 11, the edge 4352 of the defective portion 4351 may have a shape other than circular. Unlike FIG. 11, the edge 4352 of the defective portion 4351 does not have to be closed.

Each of the plurality of third conductive portions 45 shown in FIGS. 4, 7, 11, and 12 penetrates the first member 1 and is connected to the first conductive portion 41 and the second conductive portion 43. The plurality of third conductive portions 45 are arranged in any one of the plurality of first through holes 14 or the second through holes 15. An example of the material constituting the third conductive portion 45 is not limited, but is a material (for example, Cu) constituting the first conductive layer 491 in the first conductive portion 41 or the first conductive layer 491 in the second conductive portion 43. ) May be the same. The third conductive portion 45 can be formed by plating, for example, without limitation.

As shown in FIG. 7, the plurality of third conductive portions 45 include at least one first portion 45A and at least one second portion 45B.

The at least one first portion 45A is connected to the first conductive portion 411 of the first conductive portion 41 and the first conductive portion 431 of the second conductive portion 43, respectively. As shown in FIG. 7, one or some of at least one of the first portions 45A may overlap the optical element 3 in a plan view.

At least one second portion 45B is connected to the second conductive portion 412 of the first conductive portion 41 and the second conductive portion 432 of the second conductive portion 43. Preferably, the number of at least one first portion 45A is greater than the number of at least one second portion 45B. The number of at least one first portion 45A is, for example, 5 to 30. The number of at least one second portion 45B is, for example, 1-3. As shown in FIG. 7, the number of at least one first portion 45A overlapping the optical element 3 may be larger than the number of at least one second portion 45B. The number of at least one first portion 45A and the number of at least one second portion 45B can be appropriately changed.

As shown in FIG. 4, the joint portion 83 is interposed between the optical element 3 and the first conductive portion 411. The joint 83 is made of, for example, a conductive material. The joint 83 is derived from, for example, a silver paste. Unlike the present embodiment, the joint portion 83 may be made of an insulating material. In the present embodiment, the joint portion 83 is in contact with the side surface of the optical element 3 (first side surface 3A, second side surface 3B, third side surface 3C, or fourth side surface 3D) and the first conductive portion 411. preferable. This is preferable in that the joint portion 83 can hold the optical element 3 more firmly.

The insulating portion 81 shown in FIG. 8 or the like is formed on the first surface 11 of the first member 1. The insulating portion 81 may be, for example, a resist layer. The insulating portion 81 exposes a part of the first conductive portion 41 (specifically, a part of the first conductive portion 411 and a part of the second conductive portion 412). The insulating portion 81 includes an edge 81A and an edge 81B. The edge 81A has a shape along the first side surface 1A, the second side surface 1B, the third side surface 1C, and the fourth side surface 1D of the first member 1. The edge 81B surrounds the optical element 3 in a plan view.

The functional element 58 shown in FIG. 6 and the like is arranged at the first conductive portion 411 in the first conductive portion 41. The functional element 58 is, for example, a semiconductor element, and more specifically, it may be a Zener diode. The optical device A1 does not have to include the functional element 58.

The first wire 51 shown in FIGS. 6 and 7 is made of a conductive material. The conductive material constituting the first wire 51 contains, for example, at least one of Cu, Ag, and Au. In the examples shown in FIGS. 6 and 7, in a plan view, the first wire 51 extends so as to intersect the first direction X1. Unlike the examples shown in FIGS. 6 and 7, the first wire 51 may extend along the first direction X1 or may extend along the second direction Y1. The first wire 51 has a first end 511 and a second end 512. The first end 511 of the first wire 51 is bonded to the optical element 3 (specifically, the first conductive layer 33), and in a plan view, two light emitting parts 35 out of the plurality of light emitting parts 35. Located between. The first end 511 is arranged on the second side surface 3B side, but the first end 511 may be arranged on the third side surface 3C side. The second end 512 of the first wire 51 is joined to the second conductive portion 412 of the first conductive portion 41. The second end 512 of the first wire 51 is located in the second region R2 in a plan view. As shown in FIG. 6, the second end 512 of the first wire 51 may be located between the first end 511 of the first wire 51 and the gap 17 of the first member 1 in the first direction X1. Good. As shown in FIG. 6, the second end 512 of the first wire 51 may be located between the optical element 3 and the gap 17 of the first member 1 in the first direction X1. As shown in FIG. 6, the second end 512 of the first wire 51 may be located between the optical element 3 and the positioning portion 7 in the first direction X1.

The second wire 52 shown in FIGS. 6 and 7 and the like is made of a conductive material. The conductive material constituting the second wire 52 contains, for example, at least one of Cu, Ag, and Au. In the examples shown in FIGS. 6 and 7, in a plan view, the second wire 52 extends along the second direction Y1. Unlike the examples shown in FIGS. 6 and 7, the second wire 52 may extend along the first direction X1 or may extend across the second direction Y1. The second wire 52 has a first end 521 and a second end 522. The first end 521 of the second wire 52 is joined to the functional element 58. The second end 522 of the second wire 52 is joined to the second conductive portion 412 of the first conductive portion 41. The second end 522 of the second wire 52 is located in the second region R2 in a plan view. As shown in FIG. 6, the second end 522 of the second wire 52 may be located between the first end 511 of the second wire 52 and the gap 17 of the first member 1 in the first direction X1. Good. As shown in FIG. 6, the second end 522 of the second wire 52 may be located between the optical element 3 and the gap 17 of the first member 1 in the first direction X1. As shown in FIG. 6, the second end 522 of the second wire 52 may be located between the optical element 3 and the positioning portion 7 in the first direction X1.

Unlike the examples shown in FIGS. 6 and 7, as shown in FIG. 15, the third wire 53 may be joined to the optical element 3 and the first conductive portion 411. Alternatively, the optical element 3 may be electrically connected to the first conductive portion 41 without using a wire.

The member 6 shown in FIG. 2 and the like is fixed to the first member 1. More specifically, the member 6 is fixed to the first member 1 via the second member 2. The member 6 has a portion that overlaps with the optical element 3 in a plan view. The member 6 transmits the light 890 from the optical element 3. The member 6 may be made of an insulating material. Examples of the member 6 constituting the member 6 include polyphthalamide, an epoxy resin, and a silicone-based material.

The front surface 61 and the back surface 62 are separated from each other in the direction Z1 orthogonal to the front surface 61 and face opposite to each other. Both the front surface 61 and the back surface 62 are flat.

The first side surface 6A and the second side surface 6B are separated from each other in the first direction X1 and face each other. The first direction X1 is orthogonal to the direction Z1. Both the first side surface 6A and the second side surface 6B are connected to the front surface 61 and the back surface 62. Both the first side surface 6A and the second side surface 6B are flat.

The third side surface 6C and the fourth side surface 6D are separated from each other in the second direction Y1 and face opposite to each other. The second direction Y1 is orthogonal to the first direction X1 and the direction Z1. Both the third side surface 6C and the fourth side surface 6D are connected to the front surface 61 and the back surface 62. Both the third side surface 6C and the fourth side surface 6D are flat.

As shown in FIG. 5 and the like, the first side surface 6A, the second side surface 6B, the third side surface 6C, and the fourth side surface 6D of the member 6 are the first side surface 1A and the second side surface of the first member 1, respectively. It may be flush with 1B, the third side surface 1C, and the fourth side surface 1D.

The joint portion 87 is interposed between the member 6 and the second member 2, and joins the member 6 and the second member 2. The joint 87 is made of, for example, an epoxy-based, silicone-based, or acrylic-based material.

As shown in FIGS. 2 to 4, and the like, the support B1 (in the same figure, the first member 1, the second member 2, the first conductive portion 41, the second conductive portion 43, and a plurality of third conductive portions). The portion 45, the member 6, the insulating portion 81, and the joint portions 85 and 87) includes a plurality of positioning portions 7. The plurality of positioning portions 7 are for positioning the optical element 3 and the irradiation target range 811 by fixing them to a part of the member 810. Specifically, the plurality of positioning portions 7 can be fixed to the plurality of positioning portions 812 of the member 810, respectively. Each of the plurality of positioning portions 7 may be a concave portion or a convex portion. In the examples shown in FIGS. 4 and 5, the plurality of positioning portions 7 are convex portions. Unlike the examples shown in FIGS. 4 and 5, the plurality of positioning portions 7 may be recessed. In one modification, some of the plurality of positioning portions 7 may be concave portions, and some of the remaining may be convex portions. In another modification, the support B1 may not have a plurality of positioning portions 7 but may have only one positioning portion 7. As shown in FIG. 2, the bonding layer 815 may be arranged between the positioning unit 7 and the positioning unit 813. The bonding layer 815 is made of, for example, an epoxy-based, silicone-based, or acrylic-based material.

In the examples shown in FIGS. 2 to 6 and the like, the plurality of positioning portions 7 are a part of the member 6. As shown in FIG. 6, the plurality of positioning units 7 may be arranged at positions different from those of the optical element 3 in a plan view. As shown in the figure, at least a part of any one of the plurality of positioning portions 7 may overlap the second region R2 in a plan view. In the direction Z1, the optical element 3 is located between the plurality of positioning portions 7 and the first surface 11. The plurality of positioning portions 7 have surfaces 7S facing in a direction intersecting the direction Z1. The surfaces 7S of the plurality of positioning portions 7 are the outermost edges of the optical device A1 having a closed shape of the support B1 in a plan view (in FIG. 6, for example, the first side surface 1A, the second side surface 1B, and the third surface). It may be located inside the side surface 1C and the fourth side surface 1D).

As shown in FIGS. 5 and 6, the plurality of positioning units 7 include a first positioning unit 71 and a second positioning unit 72. As shown in FIG. 6, the first positioning portion 71 overlaps the first conductive portion 411 of the first conductive portion 41 in a plan view, and the second positioning portion 72 is a first conductive portion 41 in a plan view. It overlaps with the second conductive portion 412 of. As shown in FIG. 6, the second end 512 of the first wire 51 is located between the first end 511 of the first wire 51 and the first positioning portion 71 and the second positioning portion 72 in the first direction X1. It may be located.

Unlike the example shown in FIG. 4, as shown in FIG. 2, the positioning portion 7 may have the engaging portion 74, and the member 810 may have the engaging portion 814. The engaging portion 74 and the engaging portion 814 can engage with each other.

When the optical device A1 is manufactured, it is manufactured by manufacturing the intermediate shown in FIG. 18 and dicing the first member 1, the second member 2, the member 6, and the like. In the figure, the dicing line is shown by a two-dot chain line extending in the vertical direction.

In the present embodiment, the positioning unit 7 positions the optical element 3 and the irradiation target range 811 by fixing the positioning unit 7 to a part of the member 810 having the irradiation target range 811 to which the light 890 from the optical element 3 is irradiated. It is for doing. According to such a configuration, the optical element 3 and the irradiation target range 811 can be positioned, so that the light 890 from the optical element 3 can reach the irradiation target range 811 more efficiently. As a result, the power consumption of the optical device A1 can be further reduced.

For example, in the present embodiment, the optical element 3 and the irradiation target range 811 are positioned by positioning the member 6 and the member 810. Since the member 6 can be arranged based on the position of the optical element 3, the configuration of the present embodiment is preferable because the positioning of the optical element 3 and the irradiation target range 811 can be realized with higher accuracy.

In particular, as described with reference to FIG. 6 and the like, when the light 890 emitted from the optical element 3 is planar light, the surface emitting the planar light (in FIG. 6, the surface of the optical element 3). It is possible to avoid making the size of (which substantially matches 31) excessively large. As a result, it is possible to prevent the optical element 3 from becoming excessively large in a plan view as much as possible.

In the present embodiment, the first member 1 is formed with a gap 17 penetrating from the first surface 11 to the second surface 12, and the gap 17 is hollow. According to such a configuration, when the optical device A1 is mounted on the wiring board 801 even if the space on the first surface 11 is filled with gas (air), the gas is passed through the void 17 through the void 17. It can be emitted to the outside of the optical device A1. As a result, it is possible to avoid as much as possible a problem that two parts (for example, the member 6 and the second member 2) of the optical device A1 are peeled off when the optical device A1 is mounted.

In the present embodiment, the second end 512 of the first wire 51 is between the first end 511 of the first wire 51 and the gap 17 of the first member 1 in the first direction X1 orthogonal to the first surface 11. Is located in. Such a configuration is suitable for arranging the gap 17 at a position as far as possible from the optical element 3 in a plan view. As a result, even if the liquid used for dicing (for example, water) enters the gap 17 from the second surface 12 side of the first member 1 during dicing during the production of the optical device A1, the liquid enters the optical element 3. It is possible to avoid reaching as much as possible.

In the present embodiment, the second end 522 of the second wire 52 is located between the optical element 3 and the gap 17 of the first member 1 in the first direction X1 orthogonal to the first surface 11. Such a configuration is suitable for arranging the gap 17 at a position as far as possible from the optical element 3 in a plan view. As a result, even if the liquid used for dicing (for example, water) enters the gap 17 from the second surface 12 side of the first member 1 during dicing during the production of the optical device A1, the liquid enters the optical element 3. It is possible to avoid reaching as much as possible.

In the present embodiment, the second end 522 of the second wire 52 is located between the optical element 3 and the positioning portion 7 in the first direction X1. Such a configuration is suitable for arranging the positioning portion 7 while reducing the distance between the second end 522 of the second wire 52 and the optical element 3 in the first direction X1. As a result, the optical device A1 having the positioning unit 7 can be miniaturized.

In the present embodiment, at least a part of the defective portion 4351 of the conductive portion 435 in the second conductive portion 43 overlaps the gap 17 in a plan view. According to such a configuration, during dicing during the production of the optical device A1, the portion forming the defective portion 4351 of the second conductive portion 43 can dam the liquid (for example, water) used for dicing. As a result, it is possible to prevent the liquid from entering the void 17 as much as possible. As a result, it is possible to prevent the liquid from reaching the optical element 3 as much as possible.

In the present embodiment, the edge 4352 of the defective portion 4351 of the conductive portion 435 in the second conductive portion 43 has a closed shape surrounding the gap 17 in a plan view. According to such a configuration, it is possible to more preferably suppress the liquid from reaching the optical element 3.

In the present embodiment, in a plan view, the first wire 51 extends so as to intersect the first direction X1. According to such a configuration, it is suitable to reduce the area of the second conductive portion 412 in the first conductive portion 41 in a plan view. As a result, the area of the first conductive portion 411 in a plan view can be further increased. As a result, the heat generated by the optical element 3 can be more efficiently released to the outside of the optical device A1.

In the present embodiment, the first end 511 of the first wire 51 is joined to the optical element 3 and is located between two light emitting parts 35 among the plurality of light emitting parts 35 in a plan view. .. According to such a configuration, the light 890 from the two light emitting units 35 makes the contrast of the light between the vicinity where the first end 511 of the surface 31 is located and the other region of the surface 31 smaller. As a result, it is possible to prevent the vicinity of the first end 511 from becoming extremely dark.

In the present embodiment, the plurality of third conductive portions 45 include at least one first portion 45A connected to the first conductive portion 411 of the first conductive portion 41. According to such a configuration, the heat generated by the optical element 3 can be more efficiently discharged to the outside of the optical device A1 via the first conductive portion 41 and the first portion 45A.

In the present embodiment, the number of at least one first portion 45A is larger than the number of at least one second portion 45B. According to such a configuration, the heat generated by the optical element 3 can be more efficiently discharged to the outside of the optical device A1 via the first conductive portion 41 and the first portion 45A.

In the present embodiment, the inner surface 24 includes a first portion 241 and a second portion 242. The second portion 242 is connected to the first portion 241 and is curved from the optical element 3 toward the outside of the second member 2 in a plan view. According to such a configuration, in the present embodiment, for example, the area of the surface 21 of the second member 2 can be increased as compared with the case where the second portion 242 is composed of three rectangular sides. As a result, the joint area between the surface 21 of the second member 2 and the member 6 can be made larger, and the joint strength between the second member 2 and the member 6 can be improved. The same applies to the fourth site 244, the sixth site 246, and the eighth site 248.

In the present embodiment, it is possible to prevent the collet (not shown) for arranging the functional element 58 from coming into contact with the second portion 242 during the manufacture of the optical device A1.

<Modification example>
A modified example will be described with reference to FIGS. 19 to 27.

In the following description, the same or similar configurations as above are designated by the same reference numerals as above, and the description thereof will be omitted as appropriate. The above description can be appropriately applied to the configurations with the same reference numerals as those described above. The techniques disclosed in the following modifications can be freely combined with the above embodiments and other modifications.

The modified example shown in FIG. 19 is different from the optical device A1 in that the positioning portion 813 is a convex portion and the positioning portion 7 is a concave portion. As described above, the combination of the convex portion and the concave portion of the positioning portion 813 and the positioning portion 7 can be appropriately changed.

In the modified example shown in FIG. 20, in the optical device A3, the side surface of the member 6 (for example, the first side surface 6A and the second side surface 6B) is the side surface of the first member 1 (for example, the first side surface 1A and the second side surface 1B). ), It differs from the optical device A1 in that it is located inside.

In the modified example shown in FIG. 21, in the optical device A4, the positioning portion 7 is formed not by a protrusion formed on the surface 61 of the member 6 but by a side surface of the member 6 (for example, a first side surface 6A or a second side surface 6B). It differs from the above-mentioned optical device A3 in that it is used. As described above, in this modification, the surface 7S of the positioning portion 7 is the outermost edge of the optical device A1 having the closed shape of the support B1 (for example, the first side surface 1A, the second side surface 1B, and the third side surface). It is located inside (consisting of 1C and 4th side surface 1D).

In the modified example shown in FIG. 22, the optical device A5 does not include the second member 2, and the shape of the member 6 is different from that of the optical device A1. In the modified example shown in FIG. 23, in the optical device A6, the positioning portion 7 is composed of the side surfaces of the member 6 (for example, the first side surface 6A and the second side surface 6B) instead of the protrusions formed on the surface 61 of the member 6. It differs from the above-mentioned optical device A5 in that it is used.

In the modified example shown in FIG. 24, the optical device A7 has mainly different configurations of the first member 1 and the second member 2 as compared with the optical device A3. The first member 1 shown in the figure is made of a conductive material. The first member 1 of this modification may be called, for example, a lead frame. The second member 2 is made of an insulating material or a conductive material. In this modification, the second member 2 is made of an insulating material. Examples of the insulating material constituting the second member 2 include resin. The second member 2 is formed by using, for example, a mold, but is not limited to the second member 2.

In the modified example shown in FIG. 25A, the optical device A8 is different from the optical device A6 in that the positioning portion 7 is not a part of the member 6 but a part of the second member 2. As shown in FIG. 25A, the member 6 is formed with a missing portion 611. The defective portion 611 is, for example, a recess or an opening. FIG. 25A shows an example in which the defective portion 611 is a concave portion. A positioning portion 7 is arranged in the defective portion 611.

The optical device A81 of the modified example shown in FIG. 25B is different from the optical device A8 shown in FIG. 25A in that it includes the resin portion 9, and is the same in other points. The resin portion 9 is preferably made of a material that transmits light 890 from the optical element 3. The resin portion 9 covers the optical element 3. The resin portion 9 may be made of, for example, a silicone-based, epoxy-based, or acrylic-based material. The resin portion 9 may be formed by an optical device other than the optical device A8 (that is, optical devices A1 to A7 and A9 to A10).

In the modified example shown in FIG. 26, the optical device A9 is different from the optical device A8 in that a part of the second member 2 in the lower part of the drawing constitutes the positioning portion 7. The positioning unit 7 can be fixed to the wiring board 801.

In the modified example shown in FIG. 27, the optical device A10 is different from the optical device A1 in that the positioning unit 7 is not provided.

The present disclosure is not limited to the embodiments described above. The specific configuration of each part of the present disclosure can be freely redesigned.

The present disclosure includes embodiments according to the following appendices.
[Appendix 1]
With the support
An optical element that is arranged on the support and emits light is provided.
The support includes at least one positioning portion, and the at least one positioning portion is fixed to a part of a member having an irradiation target range to be irradiated with light from the optical element, thereby forming the optical element. An optical device for positioning with the irradiation target range.
[Appendix 2]
The support has a first surface on which the optical element is arranged.
The optical device according to Appendix 1, wherein the optical element is located between the at least one positioning unit and the first surface in a direction orthogonal to the first surface.
[Appendix 3]
The optical device according to Appendix 2, wherein the at least one positioning unit has a surface facing a direction intersecting a direction orthogonal to the first surface.
[Appendix 4]
The optical device according to Appendix 3, wherein the surface of the at least one positioning unit is arranged at a position different from that of the optical element in a plan view.
[Appendix 5]
The support includes an edge that has a closed shape, and the edge of the support is located on the outermost side of the optical device in a plan view.
The optical device according to Appendix 3 or Appendix 4, wherein the surface of the at least one positioning portion is located inside the edge of the support in a plan view.
[Appendix 6]
The optical device according to any one of Supplementary Provisions 1 to 5, wherein the at least one positioning portion is a convex portion or a concave portion, respectively.
[Appendix 7]
The support
The first member on which the optical element is arranged and
The optical device according to Appendix 2, comprising a second member fixed to the first member and overlapping the optical element in a direction orthogonal to the first surface.
[Appendix 8]
The first member has a first surface and a second surface opposite to the first surface, and has an insulating property.
A first conductive portion formed on the first surface of the first member is further provided.
The optical element includes a first conductive layer and a second conductive layer that are insulated from each other.
The first conductive portion is described in Appendix 7, which includes a first conductive portion conducting the second conductive layer of the optical element and a second conductive portion conducting the first conductive layer of the optical element. Optical device.
[Appendix 9]
The first conductive portion in the first conductive portion includes at least one defective portion that is defective in a plan view.
The optical device according to Appendix 8, wherein each of the at least one defective portion of the first conductive portion is a recess formed in the first conductive portion or an opening formed in the conductive portion.
[Appendix 10]
The first member is formed with a gap penetrating from the first surface to the second surface.
The optical device according to Appendix 8 or Appendix 9, wherein the gap is hollow.
[Appendix 11]
The first conductive portion includes a defective portion that is defective in a plan view.
The optical device according to Appendix 10, wherein at least a part of the defective portion in the first conductive portion overlaps the void in a plan view.
[Appendix 12]
A first wire having a first end and a second end is further provided, the first end of the first wire is joined to the optical element, and the second end of the first wire is the first. It is joined to the second conductive part of one conductive part,
Note that the second end of the first wire is located between the first end of the first wire and the gap of the first member in a first direction orthogonal to the first surface. 10 or the optical device according to Appendix 11.
[Appendix 13]
A second conductive portion formed on the second surface of the first member is further provided.
The second conductive portion includes a conductive portion including a defective portion that is defective in a plan view.
The optical device according to any one of Supplementary note 10 to Supplementary note 12, wherein at least a part of the defective portion of the conductive portion in the second conductive portion overlaps the gap in a plan view.
[Appendix 14]
The optical device according to Appendix 13, wherein the edge of the defective portion of the conductive portion in the second conductive portion has a closed shape surrounding the void in a plan view.
[Appendix 15]
The first member includes a first region and a second region that are adjacent to each other in the first direction with a virtual straight line in between.
The virtual straight line passes through the center of the first member in a plan view and extends in the second direction.
The optics according to Appendix 8, wherein the first direction is orthogonal to a direction orthogonal to the first surface, and the second direction is orthogonal to a direction orthogonal to the first surface and the first direction. apparatus.
[Appendix 16]
In the plan view, the area where the optical element and the first region overlap is larger than half the area of the optical element in the plan view.
A first wire having a first end and a second end is further provided, the first end of the first wire is joined to the optical element, and the second end of the first wire is the first. It is joined to the second conductive part of one conductive part,
The optical device according to Appendix 15, wherein the second end of the first wire is located in the second region in a plan view.
[Appendix 17]
The optical device according to Appendix 16, wherein in a plan view, the first wire intersects and extends in the first direction.
[Appendix 18]
The optical device according to Appendix 16 or Appendix 17, wherein at least a part of the at least one positioning portion overlaps the second region in a plan view.
[Appendix 19]
The at least one positioning unit includes a first positioning unit and a second positioning unit.
The first positioning portion overlaps the first conductive portion of the first conductive portion in a plan view, and the second positioning portion overlaps the second conductive portion of the first conductive portion in a plan view. The optical device according to any one of Supplementary note 16 to Supplementary note 18, which is overlapped.
[Appendix 20]
The optical element includes a plurality of light emitting parts, the plurality of light emitting parts are separated from each other in a plan view, and each of the plurality of light emitting parts irradiates light.
A first wire having a first end and a second end is further provided, and the first end of the first wire is joined to the optical element, and in a plan view, among the plurality of light emitting portions. 16. The optical device according to Appendix 16, which is located between the two light emitting units of the above.
[Appendix 21]
A second conductive portion formed on the second surface of the first member, and
It is provided with at least one third conductive portion that penetrates the first member and is connected to the first conductive portion and the second conductive portion.
The optical device according to Appendix 8, wherein the at least one third conductive portion includes at least one first portion connected to the first conductive portion of the first conductive portion.
[Appendix 22]
The at least one third conductive portion includes at least one second portion connected to the second conductive portion of the first conductive portion.
21. The optical device according to Appendix 21, wherein the number of the at least one first portion is larger than the number of the at least one second portion.
[Appendix 23]
The second member has an inner surface surrounding the optical element and has an inner surface.
The inner surface includes a first portion and a second portion.
The optical device according to Appendix 7, wherein the second portion is connected to the first portion and is curved from the optical element toward the outside of the second member in a plan view.
[Appendix 24]
A member fixed to the first member and transmitting light from the optical element is further provided.
The optical device according to Appendix 7, wherein the member that transmits light has a portion that overlaps the optical element in a plan view.
[Appendix 25]
The optical device described in Appendix 1 and
The wiring board on which the optical device is placed and
A joint that joins the optical device and the wiring board,
A system comprising the member having the irradiation target range.

1 1st member 11 1st surface 12 2nd surface 14 1st through hole 14S Inner surface 15 2nd through hole 15S Inner surface 17 Void 17S Inner surface 1A 1st side surface 1B 2nd side surface 1C 3rd side surface 1D 4th side surface 2 2nd member 21 Front surface 22 Back surface 24 Inner surface 241 1st part 242 2nd part 243 3rd part 244 4th part 245 5th part 246 6th part 247 7th part 248 8th part 2A 1st side surface 2B 2nd side surface 2C 3rd side surface 2D 4th side surface 3 Optical element 31 Surface 311 Substrate 312 1st semiconductor layer 313 2nd semiconductor layer 3131 Surface 315 Active layer 317 Insulation layer 318 Current constriction layer 3181 Opening 32 Back side 33 1st conductive layer 331A Opening 3333 Part 339 Part 34 2 Conductive layer 35 Light emitting part 3A 1st side surface 3B 2nd side surface 3C 3rd side surface 3D 4th side surface 41 1st conductive part 411 1st conductive part 4111 1st defective part 4112 2nd defective part 4113 Missing part 411A to 411F Edge 412 2nd conductive part 412A to 412D edge 43 2nd conductive part 431 1st conductive part 431A to 431D edge 432 2nd conductive part 432A to 432D edge 433 3rd conductive part 433A to 433D edge 435 conductive part 4351 defective part 4352 to 435D edge 45 Third conductive part 45A First part 45B Second part 491 First conductive layer 492 Second conductive layer 493 Third conductive layer 51 First wire 511 First end 512 Second end 52 Second wire 521 First end 522 First 2 End 53 3rd Wire 58 Functional Element 6 Member 61 Front Surface 611 Missing Part 62 Back Side 6A 1st Side 6B 2nd Side 6C 3rd Side 6D 4th Side 7 Positioning Part 71 1st Positioning Part 72 2nd Positioning Part 74 Engagement Part 7 S Surface 800 System 801 Wiring board 802 Conductive part 803 Conductive part 805 Joint part 81 Insulation part 810 Member 81 Irradiation target range 813 Positioning part 814 Engagement part 815 Joint layer 81A Edge 81B Edge 820 Optical device 83 Joint part 830 Object 85 Joint part 87 Joint part 890 Light 9 Resin part A1 to A10 Optical device B1 Support C1 Center LL Virtual straight line R1 First region R11 Diameter R2 Second region R12 Diameter X1 First direction Y1 Second direction Z1 direction

Claims (25)

With the support
An optical element that is arranged on the support and emits light is provided.
The support includes at least one positioning portion, and the at least one positioning portion is fixed to a part of a member having an irradiation target range to be irradiated with light from the optical element, thereby forming the optical element. An optical device for positioning with the irradiation target range. The support has a first surface on which the optical element is arranged.
The optical device according to claim 1, wherein the optical element is located between the at least one positioning unit and the first surface in a direction orthogonal to the first surface. The optical device according to claim 2, wherein the at least one positioning unit has a surface facing a direction intersecting a direction orthogonal to the first surface. The optical device according to claim 3, wherein the surface of the at least one positioning unit is arranged at a position different from that of the optical element in a plan view. The support includes an edge that has a closed shape, and the edge of the support is located on the outermost side of the optical device in a plan view.
The optical device according to claim 3 or 4, wherein the surface of the at least one positioning portion is located inside the edge of the support in a plan view. The optical device according to any one of claims 1 to 5, wherein each of the at least one positioning portion is a convex portion or a concave portion. The support
The first member on which the optical element is arranged and
The optical device according to claim 2, further comprising a second member fixed to the first member and overlapping the optical element in a direction orthogonal to the first surface. The first member has a first surface and a second surface opposite to the first surface, and has an insulating property.
A first conductive portion formed on the first surface of the first member is further provided.
The optical element includes a first conductive layer and a second conductive layer that are insulated from each other.
7. The first conductive portion includes a first conductive portion that conducts to the second conductive layer of the optical element and a second conductive portion that conducts to the first conductive layer of the optical element. The optical device described. The first conductive portion in the first conductive portion includes at least one defective portion that is defective in a plan view.
The optical device according to claim 8, wherein each of the at least one defective portion of the first conductive portion is a recess formed in the first conductive portion or an opening formed in the conductive portion. The first member is formed with a gap penetrating from the first surface to the second surface.
The optical device according to claim 8 or 9, wherein the gap is hollow. The first conductive portion includes a defective portion that is defective in a plan view.
The optical device according to claim 10, wherein at least a part of the defective portion in the first conductive portion overlaps the void in a plan view. A first wire having a first end and a second end is further provided, the first end of the first wire is joined to the optical element, and the second end of the first wire is the first. It is joined to the second conductive part of one conductive part,
A claim that the second end of the first wire is located between the first end of the first wire and the gap of the first member in a first direction orthogonal to the first surface. 10. The optical device according to claim 11. A second conductive portion formed on the second surface of the first member is further provided.
The second conductive portion includes a conductive portion including a defective portion that is defective in a plan view.
The optical device according to any one of claims 10 to 12, wherein at least a part of the defective portion of the conductive portion in the second conductive portion overlaps the void in a plan view. The optical device according to claim 13, wherein the edge of the defective portion of the conductive portion in the second conductive portion has a closed shape surrounding the void in a plan view. The first member includes a first region and a second region that are adjacent to each other in the first direction with a virtual straight line in between.
The virtual straight line passes through the center of the first member in a plan view and extends in the second direction.
The eighth aspect of claim 8, wherein the first direction is orthogonal to a direction orthogonal to the first surface, and the second direction is orthogonal to a direction orthogonal to the first surface and the first direction. Optical device. In the plan view, the area where the optical element and the first region overlap is larger than half the area of the optical element in the plan view.
A first wire having a first end and a second end is further provided, the first end of the first wire is joined to the optical element, and the second end of the first wire is the first. It is joined to the second conductive part of one conductive part,
The optical device according to claim 15, wherein the second end of the first wire is located in the second region in a plan view. The optical device according to claim 16, wherein the first wire extends so as to intersect in the first direction in a plan view. The optical device according to claim 16 or 17, wherein at least a part of the at least one positioning portion overlaps the second region in a plan view. The at least one positioning unit includes a first positioning unit and a second positioning unit.
The first positioning portion overlaps the first conductive portion of the first conductive portion in a plan view, and the second positioning portion overlaps the second conductive portion of the first conductive portion in a plan view. The optical device according to any one of claims 16 to 18, which overlaps. The optical element includes a plurality of light emitting parts, the plurality of light emitting parts are separated from each other in a plan view, and each of the plurality of light emitting parts irradiates light.
A first wire having a first end and a second end is further provided, and the first end of the first wire is joined to the optical element, and in a plan view, among the plurality of light emitting portions. The optical device according to claim 16, which is located between two light emitting units of the above. A second conductive portion formed on the second surface of the first member, and
It is provided with at least one third conductive portion that penetrates the first member and is connected to the first conductive portion and the second conductive portion.
The optical device according to claim 8, wherein the at least one third conductive portion includes at least one first portion connected to the first conductive portion of the first conductive portion. The at least one third conductive portion includes at least one second portion connected to the second conductive portion of the first conductive portion.
The optical device according to claim 21, wherein the number of the at least one first portion is larger than the number of the at least one second portion. The second member has an inner surface surrounding the optical element and has an inner surface.
The inner surface includes a first portion and a second portion.
The optical device according to claim 7, wherein the second portion is connected to the first portion and is curved from the optical element toward the outside of the second member in a plan view. A member fixed to the first member and transmitting light from the optical element is further provided.
The optical device according to claim 7, wherein the member that transmits light has a portion that overlaps with the optical element in a plan view. The optical device according to claim 1 and
The wiring board on which the optical device is placed and
A joint that joins the optical device and the wiring board,
A system comprising the member having the irradiation target range.

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