WO2022230551A1 - 発光装置、光源ユニット、及び、移動体 - Google Patents
発光装置、光源ユニット、及び、移動体 Download PDFInfo
- Publication number
- WO2022230551A1 WO2022230551A1 PCT/JP2022/015429 JP2022015429W WO2022230551A1 WO 2022230551 A1 WO2022230551 A1 WO 2022230551A1 JP 2022015429 W JP2022015429 W JP 2022015429W WO 2022230551 A1 WO2022230551 A1 WO 2022230551A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light
- lens
- light source
- emitting device
- support
- Prior art date
Links
- 238000003384 imaging method Methods 0.000 claims abstract description 81
- 239000000758 substrate Substances 0.000 claims description 144
- 230000003287 optical effect Effects 0.000 claims description 30
- 239000004417 polycarbonate Substances 0.000 claims description 13
- 229920000515 polycarbonate Polymers 0.000 claims description 12
- 238000000465 moulding Methods 0.000 claims description 9
- 230000000903 blocking effect Effects 0.000 claims description 8
- 238000007740 vapor deposition Methods 0.000 claims description 4
- 230000004048 modification Effects 0.000 description 57
- 238000012986 modification Methods 0.000 description 57
- 239000000463 material Substances 0.000 description 42
- 230000017525 heat dissipation Effects 0.000 description 23
- 239000011347 resin Substances 0.000 description 17
- 229920005989 resin Polymers 0.000 description 17
- 239000000853 adhesive Substances 0.000 description 16
- 230000001070 adhesive effect Effects 0.000 description 16
- 238000012856 packing Methods 0.000 description 14
- 230000009467 reduction Effects 0.000 description 13
- 230000005855 radiation Effects 0.000 description 11
- 239000000470 constituent Substances 0.000 description 6
- 238000012544 monitoring process Methods 0.000 description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000009826 distribution Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000011521 glass Substances 0.000 description 5
- 239000007769 metal material Substances 0.000 description 5
- 239000004065 semiconductor Substances 0.000 description 5
- 238000002834 transmittance Methods 0.000 description 5
- 230000002238 attenuated effect Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000005401 electroluminescence Methods 0.000 description 3
- 238000001579 optical reflectometry Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000029058 respiratory gaseous exchange Effects 0.000 description 3
- 229910000679 solder Inorganic materials 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- 239000004734 Polyphenylene sulfide Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 229920001707 polybutylene terephthalate Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 229920000069 polyphenylene sulfide Polymers 0.000 description 2
- 238000002310 reflectometry Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
- B60R1/12—Mirror assemblies combined with other articles, e.g. clocks
- B60R1/1207—Mirror assemblies combined with other articles, e.g. clocks with lamps; with turn indicators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/0017—Devices integrating an element dedicated to another function
- B60Q1/0023—Devices integrating an element dedicated to another function the element being a sensor, e.g. distance sensor, camera
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
- B60Q1/24—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments for lighting other areas than only the way ahead
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/25—Projection lenses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
- F21S45/10—Protection of lighting devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
- F21S8/08—Lighting devices intended for fixed installation with a standard
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
- F21V29/503—Cooling arrangements characterised by the adaptation for cooling of specific components of light sources
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V31/00—Gas-tight or water-tight arrangements
- F21V31/03—Gas-tight or water-tight arrangements with provision for venting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
- F21W2102/40—Exterior vehicle lighting devices for illuminating purposes the light being emitted to facilitate access to the vehicle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
- F21Y2115/15—Organic light-emitting diodes [OLED]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/30—Semiconductor lasers
Definitions
- the present invention relates to a light emitting device, a light source unit, and a moving object.
- Patent Document 1 there is a light-emitting device that is placed in a vehicle, which is an example of a moving object, and emits light toward the road surface around the vehicle.
- Patent Document 1 discloses a lighting device, which is an example of a light-emitting device that is provided in a side mirror and illuminates the feet of passengers outside the vehicle.
- side mirrors may have a light emitting device that emits light and an imaging device that captures an image of the road surface.
- This type of imaging device generates an image of a road surface by detecting reflected light from a road surface, an obstacle, or the like, of light emitted from a light emitting device.
- the present invention provides a light-emitting device and the like that can suppress the occurrence of halation in an image generated by an imaging device.
- a light-emitting device is supported by a second support supported by a first support in parallel with an imaging device on the side of the first support, and receives light detected by the imaging device.
- a light emitting device that emits light comprising: a light source unit that emits the light; and a lens that receives the light emitted by the light source unit and emits the incident light. is provided with a light reducing portion that reduces at least a part of the light emitted toward the first support member out of the light that has entered the lens.
- a light-emitting device is supported by a second support supported by the first support side by side with the imaging device, and is detected by the imaging device.
- a light source for emitting the light
- a lens for receiving the light emitted by the light source and for emitting the incident light
- a lens for emitting the incident light.
- a light-attenuating section that reflects or diffuses at least a part of the light directed toward the first support among the emitted light.
- a light-emitting device is supported by a second support supported by the first support side by side with the imaging device, and is detected by the imaging device.
- a light emitting device for emitting light emitted from the Of the light emitted from the light source the amount of light directed toward the portion of the lens located on the side of the first support is the amount of light directed toward the portion of the lens located on the side opposite to the first support. less than quantity.
- a light source unit includes the above-described light-emitting device and the above-described imaging device.
- a moving body includes the light source unit described above, the main body portion that is the first support described above, and the side mirror that is the second support described above, and The light emitting device is attached to the side mirror so as to emit the light toward the road surface, and the imaging device detects the light reflected by the road surface to generate an image of the road surface. do.
- the light-emitting device and the like it is possible to suppress the occurrence of halation in the image captured by the imaging device.
- FIG. 1 is a front view showing a moving body according to Embodiment 1.
- FIG. FIG. 2 is a side view showing an enlarged side mirror included in the mobile body according to the first embodiment.
- FIG. 3 is a cross-sectional view showing the light source unit according to Embodiment 1, taken along line III-III in FIG. 4A is a diagram showing the inner surface side of the lens according to Embodiment 1.
- FIG. 4B is a diagram showing the outer surface side of the lens according to Embodiment 1.
- FIG. 5 is a cross-sectional view showing a light-emitting device according to a modification of Embodiment 1.
- FIG. FIG. 6 is a cross-sectional view showing a light-emitting device according to Embodiment 2.
- FIG. 1 is a front view showing a moving body according to Embodiment 1.
- FIG. FIG. 2 is a side view showing an enlarged side mirror included in the mobile body according to the first embodiment.
- FIG. 3 is a cross-
- FIG. 7 is a cross-sectional view showing a light-emitting device according to Embodiment 3.
- FIG. 8 is a cross-sectional view showing a light-emitting device according to Modification 1 of Embodiment 3.
- FIG. 9 is a cross-sectional view showing a light-emitting device according to Modification 2 of Embodiment 3.
- FIG. 10 is a cross-sectional view showing a light-emitting device according to Modification 3 of Embodiment 3.
- FIG. 11 is a cross-sectional view showing a light-emitting device according to Modification 4 of Embodiment 3.
- FIG. 12 is a cross-sectional view showing a light source unit according to Modification 4 of Embodiment 3.
- FIG. 13 is a bottom view showing a lens for a light emitting unit according to Modification 4 of Embodiment 3.
- FIG. 14 is a cross-sectional view showing a light source unit according to Modification 5 of Embodiment 3.
- FIG. 15 is a cross-sectional view showing a light-emitting device according to Modification 6 of Embodiment 3.
- FIG. 16 is a cross-sectional view showing a light-emitting device according to Modification 7 of Embodiment 3.
- FIG. 17 is a cross-sectional view showing a light-emitting device according to Modification 8 of Embodiment 3.
- FIG. 18 is a cross-sectional view showing a light source unit according to Modification 8 of Embodiment 3.
- FIG. 19 is a cross-sectional view showing a light-emitting device according to Modification 9 of Embodiment 3.
- FIG. 20 is a front view showing a monitoring system according to Embodiment 4.
- FIG. 21 is a cross-sectional view showing a light-emitting device according to Embodiment 5.
- FIG. 22 is an exploded perspective view showing a light emitting device according to Embodiment 5.
- FIG. 23 is a bottom view showing a shield and a light source unit according to Embodiment 5.
- FIG. FIG. 24 is a top view showing a shield according to Embodiment 5.
- FIG. 25 is a top view showing a shield according to a modification of Embodiment 5.
- each figure is a schematic diagram and is not necessarily strictly illustrated.
- Each drawing is a schematic drawing in which emphasis, omission, and ratio adjustment are performed as appropriate to illustrate the present invention, and may differ from the actual shape, positional relationship, and ratio.
- symbol is attached
- the Z-axis direction is, for example, the vertical direction, and the positive direction side of the Z-axis may be described as upward, and the negative direction side of the Z-axis may be described as downward.
- the Y-axis direction and the X-axis direction are directions orthogonal to each other on a plane (horizontal plane) perpendicular to the Z-axis.
- the Y-axis direction may be described as the side of the moving body (first support).
- the positive direction of the X-axis is described as the direction in which the mobile body advances (forward in the direction of travel), and the negative direction of the X-axis is described as the direction opposite to the direction in which the mobile body travels (backward in the direction of travel).
- horizontal direction means not only a completely horizontal direction but also an error of several percent that occurs during manufacturing or placement.
- FIGS. 14 to 19 and cross-sectional views shown in FIG. 21, which will be described below, are cross-sectional views corresponding to FIG.
- FIG. 1 is a front view showing a moving body 200 according to Embodiment 1.
- FIG. 2 is a side view showing an enlarged side mirror 220 included in mobile body 200 according to the first embodiment.
- the moving body 200 is a moving body such as an automobile, a motorcycle, etc., which is equipped with the light source unit 100 .
- mobile object 200 is a vehicle (more specifically, an automobile).
- the light source unit 100 is arranged on the outer surface of the moving body 200, for example.
- the moving body 200 includes, for example, a position near the outer surface of the main body (first support) 210 in the horizontal direction including the front-rear direction and the lateral direction, and the light source unit 100 has a light-emitting device.
- the light source unit 100 is installed at a position where the light 300 can be emitted onto the road surface around the moving body 200 when the device 180 emits the light 300 downward.
- the outer surface refers not only to the outer surface of the main body 210 of the moving body 200 including horizontal outer surfaces such as the front, back, left, and right, but also to the outer surface located on the side of the main body 210, such as a side mirror. It also includes the side surface of the (second support) 220, the lower surface of the side mirror 220, or the outer surface of the door of the moving body 200. Further, the moving body 200 having the light source unit 100 on its outer surface means not only when the light source unit 100 is disposed on the outer surface, but also when it is disposed near the outer surface and inside the moving body 200. Including cases where
- the moving body 200 includes a body portion 210 , side mirrors 220 and a light source unit 100 .
- the main body part 210 is a supporting body that supports the side mirrors 220, and is the main body of the vehicle that the driver gets into and drives.
- the body portion 210 supports the side mirrors 220 on both sides of the body portion 210 .
- the side mirror 220 is a support that supports the light source unit 100 and is a mirror attached to the side of the main body 210 .
- the side mirror 220 is supported by the body portion 210 on the side of the body portion 210 and extends to the side of the body portion 210 .
- Side mirror 220 supports light source unit 100 .
- the moving body 200 includes the light source unit 100 in each of the side mirrors 220 positioned on both sides of the main body 210 (both sides in the Y-axis direction). 100 may be provided.
- the light emitting device 180 is a device that is supported side by side with the imaging device 190 by a second support supported by the first support and emits light 300 that is detected by the imaging device 190 .
- the first support is the main body portion 210 and the second support is the side mirror 220 .
- the light source unit 100 is attached to the side mirror 220, emits light 300 toward the road surface, and detects reflected light of the emitted light 300 from the road surface, thereby capturing an image of the road surface.
- the light source unit 100 is arranged below the side mirror 220 .
- FIG. 3 is a cross-sectional view showing a cross section of the light source unit 100 according to Embodiment 1 taken along line III-III in FIG.
- the light source unit 100 includes a light emitting device 180 and an imaging device 190 .
- the light emitting device 180 is a device that emits light 300 that is detected by the imaging device 190 . Specifically, the light emitting device 180 is attached to the side mirror 220 so as to emit the light 300 toward the road surface (downward).
- the light 300 emitted by the light emitting device 180 is, for example, near-infrared light (for example, light with a wavelength of about 700 nm to 2500 nm). It is illuminated to image the surrounding road surface.
- the light emitting device 180 includes a lid portion 110 , a terminal portion 113 , a packing 114 , a heat sink 115 , a heat dissipation sheet 116 , a light source portion 120 , a lens 130 and a substrate 140 .
- the lid portion 110 is a lid body for attaching the light emitting device 180 to the side mirror 220 .
- a mounting portion 111 is formed in the lid portion 110, and a screw hole for mounting a screw 112 is formed in the mounting portion 111, for example.
- the light emitting device 180 is attached to the side mirror 220 by screwing the screw 112 into the attachment portion 111 .
- the material of the lid portion 110 is not particularly limited, for example, a resin material such as PBT (Polybutyleneterephthalate) or polycarbonate, or a metal material is adopted.
- the terminal section 113 is a terminal for supplying electric power supplied from an external power supply (not shown) or the like to the light source section 120 .
- the terminal portion 113 and the light source portion 120 are electrically connected by metal wiring or the like (not shown).
- the heat sink 115 is arranged on the back surface 142 side of the substrate 140 opposite to the principal surface 141 on which the light source unit 120 is arranged, and is a heat dissipation member for dissipating heat generated by the light source unit 120 .
- the heat sink 115 is supported by the lid portion 110 .
- the heat sink 115 for example, aluminum metal, stainless steel, or the like having high thermal conductivity is adopted.
- a substrate 140 is mounted on the heat sink 115 with a heat dissipation sheet 116 interposed therebetween.
- the heat dissipation sheet 116 is a sheet-like member for facilitating heat dissipation from the substrate 140 to the heat sink 115 generated by the light source section 120 .
- a material used for the heat dissipation sheet 116 is not particularly limited, and for example, a resin material or the like is used. Moreover, the heat dissipation sheet 116 may have electrical insulation.
- the substrate 140 is a substrate on which the light source section 120 is placed.
- the substrate 140 is arranged in contact with the lens 130 on the main surface 141 on which the light source unit 120 is placed.
- the material of the substrate 140 is not particularly limited, for example, a metal substrate, a ceramic substrate, a resin substrate, or the like is adopted. Note that the substrate 140 may be a flexible substrate or a rigid substrate.
- the light source unit 120 is a light source that emits light 300 .
- the light source unit 120 emits near-infrared light as the light 300, for example.
- the light source unit 120 has, for example, a solid semiconductor light source such as an LED (Light Emitting Diode).
- the lens 130 is an optical member into which the light 300 emitted by the light source unit 120 is incident and which emits the incident light 300 .
- the lens 130 is arranged to cover the lower side of the light source unit 120, receives the light 300 emitted from the light source unit 120, controls the light distribution of the incident light 300, and emits the light toward the road surface.
- It is a projection lens that In this embodiment, the lens 130 has a bowl shape that protrudes downward and is open at the top.
- the light source section 120 and the substrate 140 are accommodated in the lens 130 .
- the upper part of the lens 130 is closed by the lid part 110 .
- the lens 130 (more specifically, the base material of the lens 130) is made of, for example, a translucent glass material or a transparent resin material such as acrylic or polycarbonate.
- the shape of the lens 130 is a convex shape protruding downward, but it is not particularly limited, and may be, for example, a planar shape.
- a part of the lens 130 has a light reduction device that reduces at least part of the light 300 emitted toward the main body 210 (in FIG. 3, the Y-axis negative direction side) out of the light 300 incident on the lens 130.
- a section 400 is provided.
- the main body 210 side is a line segment parallel to the longitudinal direction of the moving body 200 (in this embodiment, the direction parallel to the X axis). is the portion closer to the main body portion 210 when the is divided into two equal parts.
- the dimming section 400 is provided in a portion of the lens 130 when the moving body 200 is viewed from the front, which is positioned on the main body section 210 side.
- the dimming portion 400 is a portion located closer to the main body portion 210 than the optical axis 310 (the dashed line shown in FIG. 3) of the light 300 emitted from the light source portion 120 in the cross-sectional view shown in FIG. is provided in Accordingly, the dimming section 400 dims the light 301 directed toward the main body section 210 among the light 300 emitted from the light source section 120 . Therefore, the light reduction unit 400 reduces the light 301 directed toward the main unit 210 from the light 300 incident on the lens 130 and emits the reduced light.
- the light 302 directed to the side opposite to the main body section 210 side is emitted from the lens 130 without being dimmed. Therefore, according to the lens 130 , the light 301 emitted toward the body section 210 out of the light 300 incident on the lens 130 is attenuated by the dimming section 400 and directed toward the opposite side of the body section 210 . The emitted light 302 is not dimmed.
- the dimming part 400 is a part of the lens 130 and is a part that dims the light 300 .
- the dimming portion 400 has a structure formed by texturing, vapor deposition, two-color molding, insert molding, or laser irradiation.
- part of the lens 130 is provided with the light reducing portion 400 which is a structure formed by texturing, vapor deposition, two-color molding, insert molding, or laser irradiation.
- the lens 130 is textured to form unevenness on the surface (at least one of the inner surface 131 and the outer surface 132), thereby forming the light reducing portion 400. Accordingly, the dimming unit 400 dims the light 300 by diffusing it.
- light reduction means that the amount of light (for example, light energy or luminous flux) per unit area when the light 300 is emitted from the lens 130 is reduced, for example, compared to the case where the light reduction section 400 is not provided. means to decline. That is, the light attenuation section 400 has a lower transmittance with respect to the light 300 than other portions of the lens 130 other than the light attenuation section 400 .
- the lens 130 is vapor-deposited to form a thin film such as a metal film on the surface (at least one of the inner surface 131 and the outer surface 132), thereby forming the dimming portion 400. Accordingly, the dimming unit 400 absorbs or reflects the light 300 to dim it.
- the lens 130 is subjected to two-color molding to form a portion that absorbs, reflects, or diffuses the light 300 on the surface (at least one of the inner surface 131 and the outer surface 132) or inside the lens 130.
- the dimming portion 400 is formed. Accordingly, the dimming unit 400 absorbs, reflects, or diffuses the light 300 to dim it.
- the lens 130 is irradiated with a laser, so that the surface (at least one of the inner surface 131 and the outer surface 132) or the inside of the lens 130 is colored to form a portion that absorbs the light 300.
- a dimming portion 400 is formed. Accordingly, the dimming unit 400 absorbs the light 300 to dim it.
- the light reduction portion 400 is formed by roughening the surface (at least one of the inner surface 131 and the outer surface 132) of the lens 130 by laser irradiation. Accordingly, the dimming unit 400 dims the light 300 by scattering it.
- the light reduction unit 400 reduces the light 300 emitted from the lens 130 by, for example, absorbing, reflecting, or diffusing the light 300 incident on the lens 130 .
- FIG. 4A is a diagram showing the inner surface 131 side of the lens 130 according to Embodiment 1.
- FIG. 4B is a diagram showing the outer surface 132 side of the lens 130 according to Embodiment 1.
- FIG. 4A is a diagram showing the inner surface 131 side of the lens 130 according to Embodiment 1.
- FIG. 4B is a diagram showing the outer surface 132 side of the lens 130 according to Embodiment 1.
- the dimming section 400 is provided, for example, on the surface (inner surface 131) of the lens 130 facing the light source section 120.
- the dimming section 400 is provided on the surface (outer surface 132) of the lens 130 opposite to the surface facing the light source section 120 side.
- an inner surface dimming portion 401 that is part of the dimming portion 400 is provided on the inner surface 131 side
- an external dimming portion 402 that is part of the dimming portion 400 is provided on the outer surface 132 side.
- the dimming section 400 may include only the inner dimming section 401 or only the outer dimming section 402, out of the inner dimming section 401 and the outer dimming section 402. and may have both.
- FIG. 3 shows an example in which the light reduction section 400 is provided near the inner surface 131 and the outer surface 132 of the lens 130, the light reduction section 400 may be provided inside the lens 130. .
- a cushioning material 117 which is an elastic member such as sponge, is provided.
- the packing 114 is a cushioning material positioned between the lens 130 and the heat sink 115 .
- the packing 114 is made of, for example, an elastic resin material such as rubber.
- the imaging device 190 is a camera that detects the light 300 emitted by the light emitting device 180 .
- the imaging device 190 is attached to the side mirror 220 so as to detect the reflected light of the light 300 reflected by the road surface, and detects the light 300 reflected by the road surface around the moving object 200. By doing so, an image of the road surface is generated.
- the light source unit 120 is, for example, a near-infrared light source that emits near-infrared light (that is, the light 300 is near-infrared light), and the imaging device 190 emits light from the light-emitting device 180. Near-infrared light, specifically, near-infrared light emitted from the light source unit 120 and reflected on the road surface is detected.
- the imaging device 190 has an imaging element for detecting the light 300, such as a CCD (Charge Coupled Device) image sensor, a CMOS (Complementary Metal Oxide Semiconductor) image sensor, or the like.
- an imaging element for detecting the light 300 such as a CCD (Charge Coupled Device) image sensor, a CMOS (Complementary Metal Oxide Semiconductor) image sensor, or the like.
- the main body section 210, the light emitting device 180, and the imaging device 190 are arranged side by side in this order.
- the body section 210, the imaging device 190, and the light emitting device 180 may be arranged side by side in this order.
- the imaging device 190 may be located on the opposite side of the light emitting device 180 from the direction in which the light emitting device 180 emits the light 300 (downward and in the negative Z-axis direction in the present embodiment). In this embodiment, imaging device 190 is positioned above light emitting device 180 .
- light-emitting device 180 is supported by side mirror 220 supported by main body 210 alongside imaging device 190 on the side of main body 210 , and is detected by imaging device 190 . It is a light emitting device that emits light 300 that The light emitting device 180 includes a light source unit 120 that emits light 300 and a lens 130 that receives the light 300 emitted by the light source unit 120 and emits the incident light 300 . A part of the lens 130 is provided with a light reducing section 400 that reduces at least part of the light 300 emitted toward the main body 210 out of the light 300 incident on the lens 130 .
- the inventors of the present application have made intensive studies and found that, when the light 300 emitted from the light emitting device 180 and once reflected by the main body 210 enters the imaging device 190, halation occurs under the influence of the light. I found out. Therefore, the light-reducing section 400 of the light-emitting device 180 reduces at least part of the light directed toward the main body section 210 from the light 300 incident on the lens 130 and emits the light. With this, the amount of light 300 reflected by the main body 210 can be reduced. Therefore, according to the light-emitting device 180, the occurrence of halation in the image generated by the imaging device 190 can be suppressed.
- the dimming section 400 is provided on the surface (inner surface 131) of the lens 130 facing the light source section 120.
- the dimming section 400 is provided on the surface (outer surface 132) opposite to the surface (inner surface 131) of the lens 130 facing the light source section 120 side.
- the structure can be simplified compared to the case where the light emitting device 180 is separately provided with a structure for dimming the light 300 .
- the dimming portion 400 is provided in a part of the lens 130 by texturing, vapor deposition, two-color molding, insert molding, or laser irradiation.
- the dimming portion 400 can be easily formed on the lens 130 .
- the dimming unit 400 absorbs, reflects, or diffuses the light 300 incident on the lens 130 , thereby dimming the light emitted from the lens 130 .
- the dimming section 400 can reduce the amount of light per unit area directed toward the main body section 210 .
- the light source unit 120 emits near-infrared light as the light 300 .
- the light 300 When the light 300 is near-infrared light, it is difficult for the user to see the light 300 visually. Therefore, for example, even if an attempt is made to place a member that suppresses reflection at a position of the body portion 210 or the like where the light 300 is irradiated, it is not possible to know where the light 300 is irradiated, so the member is placed at an appropriate position. hard to do. Therefore, by adopting a configuration such as the light emitting device 180 that reduces the amount of light directed toward the main body 210, the occurrence of halation can be suppressed even when the light 300 is difficult to see. That is, the light emitting device 180 is particularly suitable when the light 300 is near-infrared light.
- the light source unit 100 includes a light emitting device 180 and an imaging device 190 .
- the light emitting device 180 can reduce the amount of the light 300 reflected by the main body 210, so that the occurrence of halation in the image generated by the imaging device 190 can be suppressed.
- the moving body 200 includes the light source unit 100, the main body portion 210 as the first support described above, and the side mirror 220 as the second support described above.
- Light emitting device 180 is attached to side mirror 220 so as to emit light 300 toward the road surface.
- the imaging device 190 generates an image of the road surface by detecting the light 300 reflected by the road surface.
- the moving body 200 can generate an image of the road surface around the moving body 200 in which halation is suppressed by the light source unit 100 .
- FIG. 5 is a cross-sectional view showing a light-emitting device 180a according to a modification of Embodiment 1.
- FIG. 5 is a cross-sectional view showing a light-emitting device 180a according to a modification of Embodiment 1.
- a moving body and a light source unit according to a modification of Embodiment 1 are the same as in Embodiment 1 except for the configuration of the light emitting device.
- the light emitting device 180a is supported side by side with the imaging device 190 by a second support supported by the first support, and emits light to be detected by the imaging device 190 .
- the light emitting device 180a is a device that emits light 300 downward (road surface).
- the light emitting device 180a includes a lid portion 110, a terminal portion 113, a packing 114, a heat sink 115, a heat radiation sheet 116, a light source portion 120, a lens 1300, a substrate 140, and a dimming portion 400a.
- the lens 1300 is an optical member into which the light 300 emitted by the light source unit 120 is incident and which emits the incident light 300 .
- the dimming part 400 a is a part of the lens 1300 and is a part that dims the light 300 .
- the dimming unit 400a absorbs, reflects, or diffuses the light 300 incident on the lens 1300, thereby dimming the light emitted from the lens 1300.
- the lens 1300 may have a base material of the lens 1300 in which the concave portion is formed in the inner surface 131, and the dimming portion 400a injected into the concave portion and integrally formed with the base material.
- the lens 1300 may be manufactured by forming the dimming portion 400a in the concave portion using a material mainly composed of the same material as the base material of the lens 1300 .
- Embodiment 2 Next, Embodiment 2 will be described. In addition, in the description of the second embodiment, the description will focus on the points of difference from the first embodiment. Some descriptions may be simplified or omitted.
- FIG. 6 is a cross-sectional view showing a light emitting device 181 according to Embodiment 2.
- FIG. 6 is a cross-sectional view showing a light emitting device 181 according to Embodiment 2.
- the moving body and light source unit according to Embodiment 2 are the same as those in Embodiment 1 except for the configuration of the light emitting device.
- the light emitting device 181 is supported side by side with the imaging device 190 by a second support supported by the first support, and emits light to be detected by the imaging device 190 .
- the light emitting device 181 is a device that emits light 300 downward (road surface).
- the light emitting device 181 includes a lid portion 110, a terminal portion 113, a packing 114, a heat sink 115, a heat radiation sheet 116, a light source portion 120, a lens 130a, a substrate 140, and a dimming portion 403.
- the lens 130a is an optical member into which the light 300 emitted by the light source unit 120 is incident and which emits the incident light 300. Specifically, the lens 130a is arranged to cover the lower side of the light source unit 120, receives the light 300 emitted from the light source unit 120, controls the light distribution of the incident light 300, and emits the light toward the road surface. It is a projection lens that The lens 130a is made of, for example, a translucent glass material or a transparent resin material such as acrylic or polycarbonate.
- the lens 130a is not provided with the dimming section 400. Therefore, the transmittance of the light 300 does not change depending on the position of the lens 130a.
- a dimming portion 403 is placed on the outer surface 132 of the lens 130a.
- the dimming section 403 is a member that reflects or diffuses at least a portion of the light 301 directed toward the main body section 210 out of the light 300 emitted from the lens 130a. Specifically, the dimming portion 403 reflects or diffuses at least part of the light 301 emitted from the outer surface 132 in the direction from the inner surface 131 to the outer surface 132 of the lens 130a. In this embodiment, the dimming section 403 has light reflectivity with respect to the light 300 .
- the dimming section 403 is provided in a portion of the lens 130a when the moving body 200 is viewed from the front, which is positioned on the main body section 210 side.
- the dimming section 403 is arranged to cover a part below the lens 130a and a part on the body section 210 side.
- the dimming section 403 is arranged in contact with the outer surface 132 of the lens 130a on the side opposite to the light source section 120 side.
- the light reduction section 403 is located outside (below) the side opposite to the light source section 120 side of the lens 130a, and in the cross-sectional view shown in FIG.
- the dimming section 403 dims the light directed toward the main body section 210 among the light 300 emitted from the light source section 120 .
- the light 301 directed toward the main body unit 210 is emitted from the lens 130a and passes through the light reduction unit 403 (more specifically, the light reduction unit 403 and the lens 130a). interface), repeats reflection between the substrate 140 and the lens 130a, and emerges from the lens 130a in a direction opposite to the body portion 210.
- the light reduction unit 403 more specifically, the light reduction unit 403 and the lens 130a. interface
- the dimming section 403 dims the light directed toward the main body section 210 out of the light 300 emitted from the lens 130a.
- the dimming portion 403 is arranged in contact with the outer surface 132 of the lens 130a on the side opposite to the light source portion 120 side.
- the dimming section 403 may be positioned outside the lens 130a on the side opposite to the light source section 120, and may not be in contact with the lens 130a.
- the dimming part 403 may cover not only the outer surface 132 positioned below the lens 130a, but also the outer surface positioned laterally of the lens 130a.
- the dimming portion 403 is made of, for example, a metal material having light reflectivity with respect to the light 300 .
- the dimming portion 403 is made of a resin material or the like containing a light diffusing agent such as silica particles or titanium particles for diffusing the light 300 .
- the dimming section 403 may have optical transparency with respect to the light 300 . In this case, if the light attenuation section 403 has optical transparency with respect to the light 300, the amount of the light 300 emitted from the light attenuation section 403 may be reduced by reflecting or diffusing the light 300. .
- the light-emitting device 181 uses the second support (for example, the side mirror 220) supported by the first support (for example, the main body portion 210). It is a light emitting device 181 that is supported side by side with the imaging device 190 and that emits light 300 that is detected by the imaging device 190 .
- the light emitting device 181 includes a light source unit 120 that emits light 300, a lens 130a that receives the light 300 emitted by the light source unit 120 and emits the incident light 300, and a lens 130a that emits the light 300 emitted from the lens 130a. and a dimming portion 403 that reflects or diffuses at least part of the light 300 directed toward the first support side (the Y-axis negative direction side in this embodiment).
- the dimming section 403 can reduce at least part of the light directed toward the main body section 210 in the light 300 emitted from the lens 130a. Therefore, the amount of light 300 reflected by main body 210 can be reduced. Thereby, according to the light-emitting device 181, the occurrence of halation in the image generated by the imaging device 190 can be suppressed. Also, the dimming section 403 reduces the amount of the light 300 directed toward the main body section 210 by reflecting or diffusing the light 300 . For example, when the light attenuation part 403 absorbs the light 300 to reduce the amount of the light 300 directed to the main body part 210, the light attenuation part 403 generates heat.
- the light attenuation part 403 if the light attenuation part 403 reflects or diffuses the light 300 to reduce the amount of the light 300 directed to the main body part 210 , the light attenuation part 403 absorbs the light 300 so that the main body part 210 The amount of heat generated can be reduced compared to a configuration that reduces the amount of directed light 300 . Therefore, the light reduction unit 403 reflects or diffuses the light 300 to reduce the amount of the light 300 directed toward the main body unit 210, thereby suppressing the occurrence of halation in the image generated by the imaging device 190 and preventing heat generation. can be suppressed.
- the dimming section 403 is arranged in contact with the surface (outer surface 132) of the lens 130a opposite to the light source section 120 side (more specifically, the inner surface 131).
- the main body portion 210 can pass through the gap compared to the case where there is a gap between the lens 130a and the dimming portion 403.
- the generation of light leaking to the side is suppressed. Therefore, the occurrence of halation is further suppressed.
- Embodiment 3 Next, Embodiment 3 will be described. In addition, in the description of Embodiment 3, the description will focus on the points of difference from Embodiments 1 and 2, and the configurations substantially similar to those described in Embodiments 1 and 2 will be given the same reference numerals. , and the explanation may be partially simplified or omitted.
- FIG. 7 is a cross-sectional view showing a light emitting device 182 according to Embodiment 3. As shown in FIG.
- the moving body and light source unit according to Embodiment 3 are the same as those in Embodiment 1 except for the configuration of the light emitting device.
- the light emitting device 182 is supported side by side with the imaging device 190 by a second support supported by the first support, and emits light to be detected by the imaging device 190 .
- the light emitting device 182 is a device that emits light 300 downward (road surface).
- the light emitting device 182 includes a lid portion 110, a terminal portion 113, a packing 114, a heat sink 115, a heat radiation sheet 116, a light source portion 120, a lens 130a, a substrate 140, and a shield 404.
- the shield 404 is arranged between the light source unit 120 and the lens 130a, and blocks at least part of the light 301 emitted from the light source unit 120 toward the portion of the lens 130a located on the main unit 210 side.
- the shield 404 is provided at a portion located closer to the main unit 210 than the optical axis 310 (one-dot chain line shown in FIG. 7) of the light 300 emitted from the light source unit 120 in the cross-sectional view shown in FIG. .
- the amount of light, of the light 300 emitted from the light source section 120, directed toward the portion of the lens 130a located on the main body section 210 is located on the side opposite to the main body section 210 of the lens 130a. less than the amount of light directed to the area where In the present embodiment, light emitting device 182 uses shield 404 to reduce the amount of light 300 emitted from light source section 120 toward the portion of lens 130a located in body section 210 so as to reduce the amount of light toward the body section of lens 130a. 210 is configured to be less than the amount of light directed to the portion located on the opposite side.
- the member employed for the shield 404 is not particularly limited as long as it absorbs, reflects, or diffuses at least part of the light 301 directed toward the portion of the lens 130a located on the main body 210 side.
- the shielding object 404 is formed of, for example, a metal material or the like having light reflectivity with respect to the light 300 .
- the shield 404 is made of a resin material or the like containing a light diffusing agent such as silica particles or titanium particles for diffusing the light 300 .
- the shield 404 is made of a resin material or the like containing a light absorbing agent such as a pigment that absorbs the light 300 .
- the shield 404 may have optical transparency with respect to the light 300 . If the shield 404 is made of a material that is optically transparent to the light 300, the shield 404 may, for example, diffuse the light 300 to reduce the amount of the light 300 emitted from the shield 404. It is sufficient if it is configured so that
- the shape of the shield 404 is not particularly limited.
- the shield 404 may have a flat plate shape or a semi-cylindrical shape.
- shield 404 is an electronic component arranged on substrate 140 .
- the shield 404 is an electronic component arranged (mounted) on the main surface 141 of the substrate 140 on which the light source unit 120 is placed (mounted).
- the type of electronic component is not particularly limited.
- the electronic parts are tall parts such as capacitors, parts with leads, and the like.
- the shield 404 is higher than the light source section 120 from the main surface 141 of the substrate 140, for example. According to this, the shield 404 is directed toward the main unit 210 from the light source unit 120 of the light 300 emitted from the light source unit 120, and is emitted from the light source unit 120 toward the lens 130a. Much of 301 can be reflected, absorbed or diffused.
- the shield 404 may be arranged so as to cover the lower side of the light source section 120 .
- the light-emitting device 182 allows the second support (for example, the side mirror 220) supported by the first support (for example, the main body portion 210) to It is a light emitting device that is supported side by side with the imaging device 190 and emits light 300 that is imaged by the imaging device 190 .
- the light emitting device 182 includes a light source unit 120 that emits light 300, and a lens 130a that receives the light 300 emitted by the light source unit 120 and emits the incident light 300.
- the amount of light directed toward the portion of the lens 130a located on the first support side is less than the amount of light directed to the portion located on the opposite side.
- the light emitting device 182 further includes a shield 404 arranged between the light source section 120 and the lens 130a.
- the shield 404 absorbs, reflects, or diffuses at least part of the light 300 emitted from the light source section 120 directed toward the portion of the lens 130a located on the body section 210 side.
- the shield 404 can reduce at least part of the light directed toward the main body 210 in the light 300 emitted from the lens 130a. Therefore, the amount of light 300 reflected by main body 210 can be reduced. Thereby, according to the light-emitting device 182, the occurrence of halation in the image generated by the imaging device 190 can be suppressed.
- the light emitting device 182 further includes a substrate 140 on which the light source section 120 is mounted.
- Shield 404 is an electronic component placed on substrate 140 .
- a plurality of electronic components are mounted on the substrate 140 in order to appropriately supply power to the light source unit 120, for example.
- electronic components of this kind there is an electronic component with a tall height. Therefore, an electronic component mounted on the substrate 140 is adopted as the shield 404 . According to this, only by appropriately setting the arrangement layout of the electronic components on the substrate 140, the light of the light 300 emitted from the lens 130a directed toward the main unit 210 can be easily obtained without adding new components. can be reduced at least in part.
- FIG. 8 is a cross-sectional view showing a light-emitting device 183 according to Modification 1 of Embodiment 3. As shown in FIG.
- the light emitting device 183 includes a lid portion 110, a terminal portion 113, a packing 114, a heat sink 115, a heat dissipation sheet 116, a light source portion 120, a lens 130a, a substrate 140, and a shield 405.
- the shield 405 is disposed between the light source unit 120 and the lens 130a, and blocks at least part of the light 301 emitted from the light source unit 120 toward the portion of the lens 130a located on the body unit 210 side.
- the shield 405 is arranged on the substrate 140 through the substrate 140 .
- the shield 405 is an electronic component having pins penetrating through the main surface 141 and the back surface 142 of the substrate 140 .
- the shielding object 405 is arranged between the light source unit 120 and the lens 130a. It is only necessary to have a portion that at least partially absorbs, reflects, or diffuses.
- the shield 405 is a connector that is electrically connected to the terminal portion 113 by wiring or the like (not shown). Power is supplied to the light source unit 120 from an external power supply (not shown) or the like through a shield 405 that is a connector.
- the type of the electronic component that is the shield provided in the light emitting device according to the present invention is not particularly limited.
- the pin of the shield 405 (the portion located on the main surface 141 side of the substrate 140 shown in FIG. 8) may be covered with a covering member such as a resin that shields the light 300, for example.
- a covering member such as a resin that shields the light 300, for example.
- FIG. 9 is a cross-sectional view showing a light-emitting device 184 according to Modification 2 of Embodiment 3. As shown in FIG.
- the light emitting device 184 includes a lid portion 110, a terminal portion 113, a packing 114, a heat sink 115a, a heat dissipation sheet 116, a light source portion 120, a lens 130a, and a substrate 140.
- the heat sink 115a is arranged on the back surface 142 side of the substrate 140 opposite to the main surface 141 on which the light source unit 120 is arranged, and is a heat dissipation member for dissipating heat generated in the light source unit 120. be.
- the heat sink 115 a is supported by the lid portion 110 .
- the heat sink 115a for example, highly thermally conductive aluminum metal, stainless steel, or the like is adopted.
- a substrate 140 is mounted on the heat sink 115a with a heat dissipation sheet 116 interposed therebetween.
- the heat sink 115 a has a shield 406 .
- the heat sink 115a and the shield 406 are integrally formed.
- the shield 406 is disposed between the light source unit 120 and the lens 130a, and blocks at least part of the light 301 emitted from the light source unit 120 toward the portion of the lens 130a located on the body unit 210 side.
- shield 406 is provided to penetrate substrate 140 .
- the shape of the shield 406 is pin-shaped in the present embodiment, but is not particularly limited.
- the light emitting device 184 includes the light source unit 120, the lens 130a, the substrate 140 on which the light source unit 120 is mounted, and the heat sink 115a on which the substrate 140 is mounted.
- the shield 406 is part of the heat sink 115a, penetrates the substrate 140, and is arranged between the light source section 120 and the lens 130a.
- FIG. 10 is a cross-sectional view showing a light-emitting device 185 according to Modification 3 of Embodiment 3. As shown in FIG.
- the light emitting device 185 includes a lid portion 110, a terminal portion 113, a packing 114, a heat sink 115, a heat dissipation sheet 116, a light source portion 120, a lens 130a, a substrate 140, and a shield 407.
- the shield 407 is arranged between the light source unit 120 and the lens 130a, and blocks at least a part of the light 301 emitted from the light source unit 120 toward the portion of the lens 130a located on the body unit 210 side.
- the shield 407 is arranged in contact with the inner surface 131 of the lens 130a.
- the shield 407 is directly bonded to the inner surface 131 of the lens 130a by, for example, heat crimping without using an adhesive or the like.
- the position where the shield 407 arranged between the light source unit 120 and the lens 130a is attached to the light emitting device 185 may be, for example, the substrate 140, the lens 130a, or the heat sink 115 or the like. It may be a member, and is not particularly limited.
- FIG. 11 is a cross-sectional view showing a light emitting device 186 according to Modification 4 of Embodiment 3. As shown in FIG.
- the light emitting device 186 includes a lid portion 110, a terminal portion 113, a packing 114, a heat sink 115, a heat dissipation sheet 116, a light source portion 120a, a lens 130a, and a substrate 140.
- FIG. 12 is a cross-sectional view showing a light source section 120a according to Modification 4 of Embodiment 3.
- FIG. 12 is a cross-sectional view showing a light source section 120a according to Modification 4 of Embodiment 3.
- the light source unit 120a is a light source that emits light 300.
- the light source unit 120a emits near-infrared light as the light 300, for example.
- the light source section 120a includes a mounting board 122, a light emitting section 123, and a lens 124 for the light emitting section.
- the mounting board 122 is a board on which the light emitting part 123 that emits the light 300 is mounted.
- the mounting substrate 122 is connected to the substrate 140 via the bonding portion 121, which is an bonding member such as solder, on the connecting surface 122c opposite to the mounting surface 122b on which the light emitting portion 123 is mounted.
- the light emitting section 123 is a light source that emits light 300 .
- the light emitting unit 123 has, for example, a solid semiconductor light source such as an LED.
- a light emitting unit lens 124 is arranged in the light emitting unit 123 in a direction in which the light emitting unit 123 emits the light 300 .
- the optical axis of the light 300 emitted from the light emitting section 123 is parallel to the Z axis.
- the light emitting unit lens 124 is an optical member into which the light 300 emitted by the light emitting unit 123 is incident and which emits the incident light 300 .
- the light emitting unit lens 124 is arranged so as to cover the light emitting side (lower side in the present embodiment) of the light emitting unit 123, and the light 300 emitted by the light emitting unit 123 is incident thereon. It is a lens that controls the light distribution of the light 300 and emits it toward the road surface.
- the light emitting unit lens 124 is made of, for example, a translucent glass material or a transparent resin material such as silicone, acrylic, or polycarbonate.
- the light emitting section lens 124 is formed with an inclined surface 125 in order to reduce at least part of the light 300 directed toward the main body section 210 out of the light 300 emitted from the light emitting section 123 .
- the inclined surface 125 is a flat surface formed on the lens 124 for the light emitting section, and is a light reducing section that reduces at least part of the light 300 directed toward the main body section 210 side.
- the inclined surface 125 is provided in a portion of the light emitting unit lens 124 when the moving body 200 is viewed from the front, which is located on the main body unit 210 side.
- the normal (normal vector) of inclined surface 125 faces main body 210 .
- the inclined surface 125 is a plane that is inclined with respect to the optical axis of the light 300 emitted by the light emitting section 123 (the axis parallel to the Z-axis in this modified example).
- the portion located on the side opposite to the main unit 210 side is curved. According to this, the light 302 directed to the side opposite to the main body part 210 side is emitted without being reflected. Therefore, according to the light emitting unit lens 124 in which the inclined surface 125 is formed, the light 301 directed toward the main unit 210 of the light 300 emitted from the light emitting unit 123 is attenuated by the inclined surface 125, and the main unit Light 302 going away from 210 is not dimmed.
- the light 300 emitted from the light source section 120a is emitted toward the side opposite to the main body section 210 side.
- the optical axis 310a of the light 300 emitted from the light source section 120a is on the opposite side of the main body section 210 when viewed from the light source section 120 with respect to the optical axis 310 of the light 300 emitted from the light source section 120. tilt.
- FIG. 13 is a bottom view showing a light-emitting section lens 124 according to Modification 4 of Embodiment 3.
- FIG. 13 is a bottom view showing a light-emitting section lens 124 according to Modification 4 of Embodiment 3.
- the light emitting unit lens 124 when the moving body 200 is viewed from the front, two inclined surfaces 125 are formed on the main unit 210 side portion.
- the light emitting lens 124 when viewed from the bottom, has a substantially triangular shape on the main body 210 side, and a semicircular shape on the side opposite to the main body 210 .
- the number of inclined surfaces 125 formed on the lens 124 for light emitting section is not particularly limited.
- the number of inclined surfaces 125 formed on the light emitting unit lens 124 may be one, or three or more.
- the light source unit 120a includes the light emitting unit 123 that emits the light 300, the light 300 emitted by the light emitting unit 123 is incident, and the incident light 300 is received by a lens (for example, the lens shown in FIG. 3). 130).
- the surface of the light emitting unit lens 124 located on the main body unit 210 side is a flat surface (an inclined surface 125).
- FIG. 14 is a cross-sectional view showing a light source section 120b according to Modification 5 of Embodiment 3. As shown in FIG. 14
- the inclined surface 125a formed in the light emitting section lens 124a is curved.
- the inclined surface 125a is a curved surface that is curved so as to protrude toward the light emitting section. Even if the inclined surface 125a has a curved shape, the light 301, which is part of the light 300 emitted from the light emitting unit 123 and directed toward the main body unit 210, is reflected by the inclined surface 125a. Therefore, at least part of the light 301 directed toward the main body 210 out of the light 300 emitted from the light emitting section 123 is emitted from the light emitting section lens 124a toward the side opposite to the main body 210 side.
- the radius of curvature of the inclined surface 125a is not particularly limited.
- the light source unit 120b includes the light emitting unit 123 that emits the light 300, the light 300 emitted by the light emitting unit 123 is incident, and the incident light 300 is received by a lens (for example, the lens shown in FIG. 3). 130).
- the light emitting unit lens 124 a has a curved surface that is curved such that the surface located on the main body unit 210 side protrudes toward the light emitting unit 123 .
- the light 301 directed toward the main body section 210 is reflected by the inclined surface 125a. Therefore, out of the light 300 emitted from the light emitting section 123, the light directed toward the main body section 210 is attenuated.
- FIG. 15 is a cross-sectional view showing a light emitting device 187 according to Modification 6 of Embodiment 3. As shown in FIG.
- the light emitting device 187 includes a lid portion 110, a terminal portion 113, a packing 114, a heat sink 115, a heat dissipation sheet 116, a light source portion 120, a lens 130b, and a substrate 140.
- the lens 130b is an optical member into which the light 300 emitted by the light source unit 120 is incident and which emits the incident light 300.
- a protrusion 408 is formed on the lens 130b.
- the protrusion 408 is formed on the lens 130b (more specifically, the inner surface 131 of the lens 130b), protrudes toward the substrate 140, and contacts the substrate 140 (more specifically, the main surface 141 of the substrate 140). It is convex.
- the protrusion 408 is formed only on a portion of the inner surface 131 of the lens 130 b that contacts the substrate 140 . As a result, when the substrate 140 is arranged, the substrate 140 is arranged so that the direction of the normal to the main surface 141 of the substrate 140 on which the light source unit 120 is placed faces the opposite side of the main body unit 210. .
- the optical axis 310b of the light 300 emitted by the light source unit 120 and the normal direction of the main surface 141 of the substrate 140 match. That is, the direction of the normal to the main surface 141 of the substrate 140 is the same as the direction in which the light source section 120 emits the light 300 . In this modified example, the direction of the normal to the main surface 141 is parallel to the optical axis 310b, and is in the positive direction of the Y-axis and the negative direction of the Z-axis. As described above, in the light emitting device 187, the normal line of the main surface 141 of the substrate 140 is arranged to face the opposite side of the main body 210 by the protruding portion 408. The light 300 is emitted to the side opposite to the portion 210 . Therefore, according to the light emitting device 187, the amount of light 300 directed toward the main body 210 can be reduced with a simple configuration.
- the shapes of the lenses 124 and 124 for the light emitting portion shown in FIGS. 11 to 14 are merely examples.
- the lens for the light emitting unit may be provided with three inclined surfaces, or may be arbitrarily changed such that the inclined surfaces are convex.
- FIG. 16 is a cross-sectional view showing a light emitting device 187a according to Modification 7 of Embodiment 3. As shown in FIG.
- the light emitting device 187a includes a lid portion 110, a terminal portion 113, a packing 114, a heat sink 115, a heat dissipation sheet 116, a light source portion 120, a lens 130a, and a substrate 140a.
- the substrate 140a is a substrate having a main surface 141a on which the light source section 120 is placed.
- a protrusion 408a is formed on the substrate 140a.
- the protrusion 408a is formed on the substrate 140a (more specifically, the main surface 141a of the substrate 140a), protrudes toward the lens 130a, and contacts the lens 130a (more specifically, the inner surface 131 of the lens 130a). It is convex.
- the protruding portion 408a is formed only on a portion of the main surface 141a of the substrate 140a that contacts the lens 130a. Accordingly, when the substrate 140a is arranged, the substrate 140a is arranged such that the direction of the normal line of the main surface 141a of the substrate 140a on which the light source unit 120 is mounted faces the side opposite to the main body unit 210. .
- the optical axis 310b of the light 300 emitted from the light source unit 120 coincides with the normal direction of the main surface 141a of the substrate 140a.
- the direction of the normal to the main surface 141a of the substrate 140a is the same as the direction in which the light source section 120 emits the light 300 .
- the direction of the normal to the main surface 141a of the substrate 140a is arranged to face the opposite side of the main body 210 by the projecting portion 408a.
- the light 300 is emitted to the side opposite to the portion 210 . Therefore, according to the light emitting device 187a, the amount of light 300 directed toward the main body 210 can be reduced with a simple configuration.
- FIG. 17 is a cross-sectional view showing a light-emitting device 188 according to Modification 8 of Embodiment 3. As shown in FIG.
- the light emitting device 188 includes a lid portion 110, a terminal portion 113, a packing 114, a heat sink 115, a heat radiation sheet 116, a light source portion 120c, a lens 130a, and a substrate 140.
- FIG. 18 is a cross-sectional view showing a light source section 120c according to Modification 8 of Embodiment 3.
- FIG. 18 is a cross-sectional view showing a light source section 120c according to Modification 8 of Embodiment 3.
- the light source unit 120c is a light source that emits the light 300.
- the light source unit 120c emits near-infrared light as the light 300, for example.
- the light source section 120c includes a mounting substrate 122a, a light emitting section 123, and a lens 124 for the light emitting section.
- the mounting board 122a is a board on which the light emitting section 123 that emits the light 300 is mounted.
- the mounting substrate 122a is connected to the substrate 140 via the bonding portion 121, which is an bonding member such as solder, on the connecting surface 122c opposite to the mounting surface 122d on which the light emitting portion 123 is mounted.
- the mounting board 122a is arranged so that the direction of the normal to the mounting surface 122d of the mounting board 122a on which the light emitting section 123 is mounted faces the side opposite to the main body section 210.
- the main surface 141 of the substrate 140 and the connection surface 122c of the mounting substrate 122a are parallel.
- the connection surface 122c of the mounting board 122a and the mounting surface 122d of the mounting board 122a are not parallel but cross each other.
- the main surface 141 of the substrate 140 and the mounting surface 122d of the mounting substrate 122a are not parallel but cross each other.
- the optical axis 310b of the light 300 emitted by the light source section 120c and the normal direction of the mounting surface 122d of the mounting board 122a match. That is, the direction of the normal to the mounting surface 122d of the mounting substrate 122a is the same as the direction in which the light source section 120c emits the light 300.
- FIG. As described above, in the light emitting device 188, the mounting surface 122d is provided on the mounting substrate 122a so that the normal to the mounting surface 122d of the mounting substrate 122a faces the opposite side of the main body 210. The portion 120 c emits the light 300 to the side opposite to the body portion 210 . Therefore, according to the light emitting device 188, the amount of light 300 directed toward the main body 210 can be reduced with a simple configuration.
- connection surface 122c and the mounting surface 122d is not particularly limited as long as it is an angle at which the light 300 is applied to the road surface.
- FIG. 19 is a cross-sectional view showing a light-emitting device 189 according to Modification 9 of Embodiment 3. As shown in FIG. Note that FIG. 19 shows an enlarged view of the vicinity of the light source unit 120 included in the light emitting device 189 according to the ninth modification of the third embodiment.
- the light-emitting device 189 has the same components as the light-emitting device 188 except for the light source section and the adhesive section.
- the mounting substrate 122 has the bonding portion 121a, which is an bonding member such as solder, on the connection surface 122c opposite to the mounting surface 122b on which the light-emitting portion 123 is mounted. , 121b, and 121c.
- the bonding portions 121a, 121b, and 121c are bonding members that bond the substrate 140 on which the light source portion 120 is mounted and the substrate 140 between the light source portion 120 and the substrate 140, respectively. be.
- the adhesive portion 121a, the adhesive portion 121b, and the adhesive portion 121c are arranged side by side in this order.
- the adhesive portion 121a is positioned closer to the main body portion 210 than the adhesive portions 121b and 121c.
- the adhesive portion 121b is positioned closer to the main body portion 210 than the adhesive portion 121c.
- the adhesive portion 121a is wider from the substrate 140 to the light source portion 120 than the adhesive portions 121b and 121c. More specifically, the adhesive portion 121a is longer than the adhesive portions 121b and 121c from the main surface 141 of the substrate 140 to the connection surface 122c of the mounting substrate 122 included in the light source section 120 . Further, the bonding portion 121b has a wider width from the substrate 140 to the light source portion 120 than the bonding portion 121c.
- the plurality of bonding portions (bonding portions 121a, 121b, and 121c) provided in the light emitting device 189 are wider from the substrate 140 to the light source portion 120 as they are located closer to the main body portion 210 side.
- the bonding portions included in the light emitting device 189 include a first bonding portion (eg, bonding portion 121a) located on the main body portion 210 side and a second bonding portion (eg, bonding portion 121a) located on the side opposite to the main body portion 210 side. part 121c);
- the first bonding portion is wider from the substrate 140 to the light source portion 120 than the second bonding portion.
- the first bonding portion is longer in the Z-axis direction than the second bonding portion.
- the adhesive portions 121a, 121b, and 121c form a light reducing portion that is a structure for reducing the light 300 directed toward the main body portion 210 side.
- the mounting substrate 122 is arranged so that the direction of the normal line faces the opposite side of the main body portion 210 .
- the optical axis 310b of the light 300 emitted by the light source unit 120 and the normal direction of the mounting surface 122b of the mounting board 122 match. That is, the direction of the normal to the mounting surface 122 b of the mounting substrate 122 is the same as the direction in which the light source section 120 emits the light 300 .
- the normal to the mounting surface 122b of the mounting substrate 122 is arranged to face the opposite side of the main body 210 by the bonding portions 121a, 121b, and 121c. , the light source unit 120 emits light 300 to the side opposite to the main body unit 210 . Therefore, according to the light emitting device 189, the amount of light 300 directed toward the main body 210 can be reduced with a simple configuration.
- Embodiment 4 Next, Embodiment 4 will be described.
- the description will focus on the differences from the first to third embodiments, and the same reference numerals will be used for substantially the same configurations as those described in the first to third embodiments. , and the explanation may be partially simplified or omitted.
- FIG. 20 is a front view showing a monitoring system 201 according to Embodiment 4.
- FIG. 20 is a front view showing a monitoring system 201 according to Embodiment 4.
- a monitoring system 201 is an imaging system that includes the light source unit 100 .
- the monitoring system 201 includes a column (first support) 211 , a support (second support) 221 , a stepped portion 230 and the light source unit 100 .
- the strut 211 is a columnar member such as a telegraph pole that supports the support part 221 .
- the strut 211 supports the supporting portion 221 on the side of the strut 211 .
- the support part 221 is a support that supports the light source unit 100 and is a member that is attached to the side of the column 211 .
- the support part 221 is, for example, a street light (lighting fixture) attached to a utility pole.
- the support part 221 is supported by the support 211 on the side of the support 211 and extends on the side of the support 211 .
- the support portion 221 supports the light source unit 100 via the step portion 230 .
- the light-emitting device and the light source unit according to each embodiment are configured not only for the moving body 200 but also for the monitoring system 201 or the like such that the light emitted from the light-emitting device is reflected by the first support. is suitable for systems with
- the column 211, the light emitting device 180, and the imaging device 190 are arranged side by side in this order.
- the column 211, the imaging device 190, and the light emitting device 180 may be arranged side by side in this order.
- the imaging device 190 may be located on the opposite side of the light emitting device 180 from the direction in which the light emitting device 180 emits the light 300 (downward and in the negative Z-axis direction in the present embodiment). In this embodiment, imaging device 190 is positioned above light emitting device 180 .
- the monitoring system 201 includes a stepped portion 230 having a plurality of surfaces with different heights in the direction in which the light 300 is emitted from the light emitting device 180 .
- the light emitting device 180 and the imaging device 190 are arranged on different surfaces among the plurality of surfaces.
- Embodiment 5 Next, Embodiment 5 will be described. In addition, in the description of the fifth embodiment, the description will focus on the differences from the first to fourth embodiments. , and the explanation may be partially simplified or omitted.
- FIG. 21 is a cross-sectional view showing a light emitting device 500 according to Embodiment 5.
- FIG. 22 is an exploded perspective view showing a light emitting device 500 according to Embodiment 5.
- FIG. 21 is a cross-sectional view showing a light emitting device 500 according to Embodiment 5.
- FIG. 22 is an exploded perspective view showing a light emitting device 500 according to Embodiment 5.
- the light emitting device 500 further includes a lid portion 110, a terminal portion 113, a packing 114, a cushioning material 117, and the like, similar to the light emitting device 180 shown in FIG. good too. 22, the substrate 140c, the shield 510, and the lens 130c included in the light emitting device 500 are illustrated, and the illustration of other components is omitted.
- the moving body and light source unit according to Embodiment 5 are the same as those in Embodiment 1 except for the configuration of the light emitting device.
- the light emitting device 500 is supported side by side with the imaging device 190 by a second support supported by the first support, and emits light to be detected by the imaging device 190 .
- the light emitting device 500 is a device that emits light downward (road surface).
- the light emitting device 500 includes a heat sink 115b, a heat radiation sheet 116a, a light source section 120, a lens 130c, a substrate 140c, and a shield 510.
- the light emitting device 500 is a device that is supported side by side with the imaging device 190 by a second support supported by the first support and emits light 300 that is detected by the imaging device 190 . .
- the first support is the body portion 210 shown in FIG. 1, and the second support is the side mirror 220 shown in FIG.
- the light-emitting device 500 is arranged between the main unit 210 and the imaging device 190 when viewed from the moving direction of the moving object 200 .
- the light emitting device 500 emits light toward the road surface (downward).
- the imaging device 190 captures an image of the road surface around the moving body 200 by detecting the reflected light from the road surface of the light.
- the light emitting device 500 and the imaging device 190 may be arranged side by side in the traveling direction of the moving object 200 .
- the first support is the strut 211 shown in FIG. 20
- the second support is the support 221 shown in FIG.
- the heat sink 115b is arranged on the back surface 142 side, which is the surface opposite to the main surface (mounting surface) 141, which is the surface on which the light source unit 120 is arranged, of the substrate 140c, and dissipates the heat generated by the light source unit 120. It is a heat dissipation member for For the heat sink 115b, for example, highly thermally conductive aluminum metal, stainless steel, or the like is adopted. A substrate 140c is mounted on the heat sink 115b via a heat dissipation sheet 116a.
- the heat radiation sheet 116a is a sheet-like member for facilitating radiation of heat generated in the light source section 120 from the substrate 140c to the heat sink 115b.
- a material used for the heat dissipation sheet 116a is not particularly limited, and for example, a resin material or the like is used. Moreover, the heat dissipation sheet 116a may have electrical insulation.
- the substrate 140c is a substrate on which the light source unit 120 is placed.
- the substrate 140c is arranged in contact with the lens 130c on the main surface 141 on which the light source unit 120 is placed.
- the material of the substrate 140c is not particularly limited, but for example, a metal substrate, a ceramic substrate, a resin substrate, or the like is adopted.
- the substrate 140c may be a flexible substrate or a rigid substrate.
- the lens 130c is an optical member into which the light emitted by the light source unit 120 is incident and which emits the incident light. Specifically, the lens 130c is arranged to cover the lower side of the light source unit 120, receives the light emitted from the light source unit 120, controls the distribution of the incident light, and emits the light toward the road surface. It is a lens for light.
- the heat sink 115b, the heat radiation sheet 116a, the light source section 120 and the substrate 140c are accommodated in the lens 130c.
- the lens 130c (more specifically, the base material of the lens 130c) is made of, for example, a translucent glass material or a transparent resin material such as acrylic or polycarbonate.
- the shape of the lens 130c is a convex shape protruding downward, but it is not particularly limited, and may be, for example, a planar shape.
- the shielding object 510 is arranged between the light source unit 120 and the lens 130c, and absorbs at least part of the light emitted from the light source unit 120 directed to the portion of the lens 130c located on the first support unit side. , reflecting or diffusing members.
- the shield 510 has high reflectivity with respect to light emitted from the light source section 120 .
- FIG. 23 is a bottom view showing the shield 510 and the light source section 120 according to Embodiment 5.
- FIG. FIG. 24 is a top view showing shield 510 according to the fifth embodiment.
- the shield 510 includes a light shielding portion 520 and a flat plate portion 530 .
- the light shielding portion 520 is positioned between the lens 130c and the light source portion 120 and closer to the first support side (the Y-axis negative direction side in the present embodiment) than the light source portion 120. It is a light-shielding portion that absorbs, reflects, or diffuses at least part of the light directed toward the portion of the lens 130c located on the first support side.
- the light shielding section 520 is provided at a portion located on the Y-axis negative direction side with respect to the optical axis of the light emitted from the light source section 120 .
- the light shielding part 520 has, for example, a curved shape (for example, a half-bowl shape) along the inner surface 131 of the lens 130c.
- the light shielding part 520 may be in contact with the light source part 120, but it is preferable that it is not in contact with the light source part 120.
- the shield 510 and the light source unit 120 out of contact, it is possible to prevent the heat generated by the light source unit 120 from being transferred to the shield 510 and remaining in the space surrounded by the lens 130c and the substrate 140c.
- the distance between the light blocking section 520 and the light source section 120 may be set arbitrarily and is not particularly limited.
- the distance between the light blocking section 520 and the light source section 120 is, for example, 1 mm or more.
- an opening 560 which is a through hole, is provided in the central portion of the shield 510 in plan view (bottom view).
- the light source unit 120 is arranged at a position overlapping the opening 560 when viewed from above. Light emitted from the light source unit 120 is emitted to the outside of the light emitting device 500 through the opening 560 and the lens 130c.
- the light shielding portion 520 is provided, for example, so as to cover the first support side half of the opening 560 which is circular in plan view.
- the amount of light directed toward the first support is smaller than the amount of light directed toward the side opposite to the first support.
- the light blocking section 520 may or may not cover the light source section 120 in plan view.
- the light shielding part 520 is continuously provided from a position at least partially overlapping with the light source part 120 when the main surface 141 of the substrate 140c is viewed from above to between the light source part 120 and the first support. . That is, for example, the light shielding part 520 continuously covers from a position below the light source part 120 and overlapping with the light source part 120 when the main surface 141 of the substrate 140c is viewed from above to the side of the light source part 120. .
- the position overlapping with the light source unit 120 may be, for example, a position overlapping with the center of the light source unit 120 in plan view (for example, the optical axis 310 of light emitted from the light source unit 120), or may be a position overlapping with the light source unit 120 in plan view. It may be on the first support side from the center.
- the light shielding section 520 has a projecting section 521 that partially covers (overlaps) the light source section 120 when viewed from below.
- the size and shape of the protrusion 521 are not particularly limited.
- the size of the projecting portion 521 may be smaller than the light source portion 120 in plan view, for example.
- the protrusion 521 can prevent the light emitted from the light source unit 120, which has the highest light intensity and is directed directly below the light source unit 120, from being directly emitted from the lens 130c. Therefore, uneven brightness of light detected by the imaging device 190 can be suppressed.
- the size of the protrusion 521 for example, the length (width) in the X-axis direction shown in FIG. 23 is about 2 mm.
- the flat plate portion 530 is a flat plate portion placed on the main surface 141 between the lens 130c and the main surface 141 of the substrate 140c.
- the light shielding portion 520 and the flat plate portion 530 are integrally provided.
- the member employed for the shield 510 is not particularly limited as long as it absorbs, reflects, or diffuses at least part of the light emitted from the light source section 120 .
- the shield 510 is made of, for example, a metal material or the like that reflects light emitted from the light source section 120 .
- the shield 510 is made of a resin material or the like containing a light diffusing agent such as silica particles or titanium particles for diffusing (or refracting) the light emitted from the light source section 120 .
- the shield 510 is made of a resin material or the like containing a light absorbing agent such as a pigment that absorbs the light emitted from the light source section 120 .
- the shield 510 may be made of PC (polycarbonate).
- shield 510 may be constructed of a material that includes polycarbonate, for example.
- the shield 510 may be made of PP (polypropylene), PPS (polyphenylene sulfide), or PMMA (polymethyl methacrylate, so-called acrylic).
- the light shielding portion 520 and the flat plate portion 530 may be made of the same material or may be made of different materials. When the light shielding portion 520 and the flat plate portion 530 are made of different materials, it is sufficient that the light shielding portion 520 can absorb, reflect, or diffuse the light emitted from the light source portion 120, and the flat plate portion 530 is optional. configuration.
- the structure capable of absorbing, reflecting, or diffusing may be a structure capable of absorbing part of the light and reflecting another part of the light, or a structure capable of absorbing a part of the light and reflecting the other part of the light. A configuration that can diffuse part of the light may be used, or a configuration for absorbing, reflecting, or diffusing may be arbitrarily combined.
- the shield 510 may have a structure capable of at least one of absorption, reflection, and diffusion.
- the respective thicknesses of the light shielding portion 520 and the flat plate portion 530 are not particularly limited.
- the thickness of the flat plate portion 530 (for example, the thickness of the thinnest portion) is about 1 mm.
- the shield 510 should be able to absorb, reflect, or diffuse at least part of the light, for example, absorb, reflect, or diffuse 70% to 90% of the light.
- the shield 510 may reflect 70% or more of the light emitted by the light source unit 120 . Also, for example, the shield 510 may reflect 80% or more of the light emitted by the light source unit 120 . Also, for example, the shield 510 may reflect 90% or more of the light emitted by the light source section 120 .
- the shield 510 may transmit 20% or less of the light emitted by the light source section 120 . Further, for example, the shield 510 may transmit 5% or less of the light emitted by the light source section 120 . Further, for example, the shield 510 may transmit 1% or less of the light emitted by the light source section 120 .
- the transmittances of 20% and 5% here indicate the transmittance of light when the shielding object 510 has a thickness of 2 mm, for example.
- the color of the shielding object 510 may be black, white, or another color, and is not particularly limited, but is preferably white. This makes it difficult for the shield 510 to generate heat due to light.
- the surface of the shield 510 may be provided with a concave portion (gradual change portion) extending to the outer edge in plan view.
- the shield 510 for example, the flat plate portion 530
- the shield 510 may be provided with a portion (gradual change portion) in which the thickness decreases from the central portion toward the outer edge in plan view. According to this, there is an effect of increasing the surface rigidity, the vibration resistance can be improved, and the occurrence of deformation such as warping due to contraction can be suppressed.
- a concave portion may be formed on the surface of the lens 130c facing the concave portion.
- the shield 510 may be provided with beams (so-called ribs). Specifically, a beam may be provided on the edge of the flat plate portion 530 on the side of the first support. According to this, the generation of abnormal noise in the light emitting device 500 is suppressed.
- both the above-described gradually changing portion and the above-described beam may be provided on the flat plate portion 530 . According to this, the generation of abnormal noise in the light emitting device 500 is further suppressed.
- a through hole 541 is formed through the shield 510 (more specifically, the flat plate portion 530) in the direction normal to the main surface of the flat plate portion 530 (the Z-axis direction in the present embodiment).
- a through-hole 542 is formed through the substrate 140c in the direction normal to the main surface 141 (the Z-axis direction in this embodiment).
- a through-hole 543 is formed in the heat dissipation sheet 116a so as to penetrate in the direction normal to the main surface of the heat dissipation sheet 116a (the Z-axis direction in the present embodiment).
- the heat sink 115b is formed with a through hole 544 penetrating in the direction normal to the main surface of the heat sink 115b (the Z-axis direction in this embodiment).
- These through holes 541 to 544 are arranged so as to overlap each other when viewed from below.
- An engaging portion 550 provided on the lens 130c is passed through these through holes 541 to 544 and disposed.
- the engaging portion 550 is a columnar portion provided on the lens 130c.
- the configuration in which the engaging portion 550 is arranged to pass through the through holes 541 to 544 facilitates the alignment of the heat sink 115b, the heat radiation sheet 116a, the substrate 140c, the shield 510, and the lens 130c.
- the engaging portion 550 is passed through the through holes 541 to 544 and arranged (that is, after each component is positioned), the engaging portion 550 is subjected to heat caulking or the like so as to separate from the through holes 541 to 544. It is processed (deformed) so that it does not come off.
- the heat sink 115b, the heat radiation sheet 116a, the substrate 140c, and the shield 510 are provided with two through holes 541 to 544, respectively. good.
- the lens 130c may be provided with the engaging portions 550 corresponding to the number of the through holes 541-544.
- the arrangement of the through holes 541 to 544 may be arbitrary and is not particularly limited.
- the shield 510 may be provided with two through-holes 541 so as to be opposite to each other (for example, diagonally) with respect to the opening 560 in plan view.
- through holes different from the through holes 541 to 544 may be further provided in the heat sink 115b, the heat dissipation sheet 116a, the substrate 140c, and the shield 510 so as to communicate with each other.
- the air in the area surrounded by the lens 130c and the substrate 140c can travel through the ventilation holes to the inside and outside of the area, so that the area can be prevented from being filled with heat.
- two breathing holes may be provided in each of the heat sink 115b, the heat radiation sheet 116a, the substrate 140c, and the shield 510.
- FIG. According to this, positive pressure is applied to one ventilation hole and negative pressure is applied to the other ventilation hole, that is, the two ventilation holes function as an inlet and an outlet for the air in the area. , it is possible to further suppress heat buildup in the area.
- an air-permeable but water-impermeable seal (a so-called waterproof sheet) may be placed in the breathing hole.
- the shield 510 may be formed with a pin (for example, a convex portion) so that it can be positioned with respect to the lens 130c.
- the lens 130c may be formed with a concave portion that engages with the convex portion.
- the second support (for example, the side mirror 220) supported by the first support (for example, the main body portion 210) allows the first support to It is a light emitting device that is supported side by side with the imaging device 190 and emits light to be imaged by the imaging device 190 .
- the light emitting device 500 includes a light source unit 120 that emits the light, and a lens 130c that receives the light emitted by the light source unit 120 and emits the incident light.
- the amount of light directed toward the portion of the lens 130c located on the first support side is is less than the amount of light going to the part located on the opposite side.
- the light emitting device 500 further includes a shield 510 arranged between the light source section 120 and the lens 130c.
- the shield 510 absorbs, reflects, or diffuses at least part of the light emitted from the light source section 120 directed toward the portion of the lens 130c located on the first support side.
- the light emitting device 500 further includes a substrate 140c having a mounting surface (principal surface 141) on which the light source section 120 is mounted.
- the shielding object 510 is positioned, for example, between the lens 130c and the light source unit 120 and closer to the first support than the light source unit 120, and out of the light emitted from the light source unit 120, the first support in the lens 130c.
- a light blocking portion 520 that absorbs, reflects, or diffuses at least part of the light directed toward a portion located on the body side, and a flat plate portion 530 that is placed on the main surface 141 between the lens 130c and the main surface 141. have.
- the light that is emitted from the light source section 120 and directed toward the first support can be reduced by the light shielding section 520 .
- an assembling device such as a robot equipped with a suction head or the like that assembles the light emitting device 500 can easily suction the flat plate portion 530 with the suction head. Therefore, the flat plate portion 530 makes it easier to manufacture the light emitting device 500 .
- the flat plate portion 530 is positioned between the substrate 140c and the lens 130c, specifically, the flat plate portion 530 is sandwiched between the substrate 140c and the lens 130c, the positional deviation of the shield 510 is less likely to occur. . Therefore, the optical characteristics of the light-emitting device 500 are less likely to change due to vibration or the like.
- the light shielding section 520 is continuously provided from a position at least partially overlapping with the light source section 120 when the main surface 141 is viewed from above to between the light source section 120 and the first support.
- the light emitted from the light source section 120 can be made more difficult to reach the first support by the light shielding section 520 . Therefore, according to the light-emitting device 500, halation is less likely to occur.
- the shield 510 contains polycarbonate. That is, shield 510 is made of polycarbonate.
- the surface can be processed or the shape can be changed.
- FIG. 25 is a bottom view showing a shield 511 according to a modification of Embodiment 5.
- FIG. 25 is a bottom view showing a shield 511 according to a modification of Embodiment 5.
- the shielding object 511 is arranged between the light source unit 120 and the lens 130c in the same way as the shielding object 510, and of the light emitted from the light source unit 120, the shielding object 511 is directed toward the portion of the lens 130c located on the first support side.
- a member that absorbs, reflects, or diffuses at least part of light For example, the shield 511 has high reflectivity with respect to the light emitted from the light source section 120 .
- the shield 511 has a light shielding portion 520a and a flat plate portion 530.
- the light shielding portion 520a is located between the lens 130c and the light source portion 120 and closer to the first support side (in the present embodiment, the Y-axis negative direction side) than the light source portion 120. , which absorbs, reflects, or diffuses at least part of the light emitted from the light source unit 120 directed toward the portion of the lens 130c located on the first support side.
- the light shielding portion 520a is provided at a portion located on the Y-axis negative direction side of the optical axis of the light emitted by the light source portion 120 .
- the light shielding portion 520a has, for example, a curved shape (for example, a half-bowl shape) along the inner surface 131 of the lens 130c.
- the second support for example, the side mirror 220 supported by the first support (for example, the main body 210 of the moving body 200) allows the first support to It is a light emitting device that is supported side by side with the imaging device 190 and emits light to be imaged by the imaging device 190 .
- the light blocking section 520a blocks the light directed toward the rear side of the moving body 200 from the light source section 120 in the traveling direction of the moving body 200 from the light directed toward the portion of the lens 130c located on the moving body 200 side. It absorbs, reflects, or diffuses more than light directed forward in the direction of travel of 200 .
- the light shielding part 520a moves more than the light source part 120 for the light directed to the front side of the traveling direction of the moving body 200 from the light source part 120, among the light directed to the portion of the lens 130c located on the moving body 200 side.
- the amount of light that is absorbed, reflected, or diffused is smaller than that of the light traveling forward in the traveling direction of the body 200 .
- the area of the first light shielding portion 522 located on the front side in the traveling direction of the moving object 200 in the light shielding portion 520a is the area located on the front side in the traveling direction of the moving object 200 in the light shielding portion 520a. is smaller than the area of the second light shielding portion 523 . That is, the first light shielding part 522 has a smaller area than the second light shielding part 523 to shield the light emitted from the light source unit 120 .
- the light directed forward in the traveling direction of the moving body 200 is not so much blocked by the light blocking section 520a.
- the side mirror 220 may be attached to the main body 210 differently depending on whether the mobile object 200 is left-handed or right-handed.
- the end of the side mirror 220 opposite to the main body 210 is likely to be positioned forward in the traveling direction of the mobile body 200 compared to the case of a right-hand drive.
- the side mirror 220 is positioned in this way, the amount of light emitted from the light emitting device to the front side in the traveling direction of the moving body 200 is reduced, for example, when the side mirror 220 is attached to the side mirror 220 in the case of a right-hand drive. It is smaller than the amount of light emitted forward in the traveling direction of the body 200 . Therefore, when viewed from directly below the imaging device 190, the road surface on the forward side in the traveling direction of the moving body 200 is difficult to be properly imaged.
- the light on the forward side in the moving direction of the moving body 200 is not blocked (absorbed, reflected, or diffused) by the light shielding unit 520a. Even when the installation position of the side mirror 220 with respect to the vehicle is changed, it is possible to prevent the road surface on the front side of the traveling direction of the moving body 200 from being properly imaged when viewed from directly below the imaging device 190 .
- the side of the shield 510 located in the positive Y-axis direction of the light shielding portion 520 is linear when viewed from above.
- the side of the shield 511 located in the positive Y-axis direction of the light shielding portion 520a is bent at the center of the side.
- an imaginary line extending in the positive X-axis direction from the side (the side included in the second light shielding portion 523) located on the negative X-axis direction side of the relevant side (see FIG. 25). ) and the side (the side included in the first light shielding portion 522) located in the positive X-axis direction of the side concerned is greater than zero. That is, the two-dot chain line shown in FIG. 25 and the virtual line (three points dashed line) is larger than 0.
- ⁇ is approximately 0 at the shield 510 .
- the angle ⁇ may be set arbitrarily.
- the angle ⁇ may be 5 degrees or more, or 10 degrees or more.
- the angle ⁇ may be 30 degrees or less.
- the light shielding portion 520a blocks light directed toward the rear side of the moving body 200 from the light source portion 120 in the traveling direction of the moving body 200 from the light directed toward the portion of the lens 130c located on the moving body 200 side.
- the area of the first light shielding portion 522 is smaller than the area of the second light shielding portion 523 has been described in order to absorb, reflect, or diffuse more light than the light traveling forward in the direction of travel.
- optical characteristics such as reflectance and transmittance are different between the first light-shielding portion 522 and the second light-shielding portion 523.
- the unit 520a directs light toward the moving object 200-side portion of the lens 130c toward the moving object 200 toward the rear of the moving object 200 relative to the light source unit 120 in the traveling direction of the moving object 200. It may be absorbed, reflected, or diffused more than light directed forward.
- the light shielding part 520a may not have the first light shielding part 522 and may have only the second light shielding part 523.
- the light blocking section 520a may block only the light directed toward the rear side of the traveling direction of the moving body 200 from the light source section 120, among the light directed toward the portion of the lens 130c located on the moving body 200 side.
- the light shielding part 520a may be located between the light source part 120 and the lens 130c, closer to the moving body 200 than the light source part 120, and to the rear side of the moving body 200 in the traveling direction.
- an LED was exemplified as a specific example of the light source provided in the light emitting unit, but a semiconductor light emitting device such as a semiconductor laser, or a solid light emitting device such as an organic EL (Electro Luminescence) device or an inorganic EL device may be used. may be employed as the light source.
- a semiconductor light emitting device such as a semiconductor laser, or a solid light emitting device such as an organic EL (Electro Luminescence) device or an inorganic EL device may be used.
- an organic EL Electro Luminescence
- first support and the second support may not be separate bodies, and may be integrally formed.
- the light source unit may be implemented as an LED module with an SMD (Surface Mount Device) structure, or an LED module with a so-called COB (Chip On Board) structure in which an LED chip is directly mounted on a substrate.
- SMD Surface Mount Device
- COB Chip On Board
- At least one of the inner surface and the outer surface of the lens of the light emitting device, which is located on the vehicle side and through which the light from the light source is emitted, may be provided with a concave portion. According to this, the light emitted from the light source is refracted or reflected by the concave portion and is less likely to travel toward the vehicle.
- the concave portion provided in this manner is smoothly connected to the surface of the other portion of the lens. This suppresses halation.
- the thickness of the lens is not particularly limited, it may be, for example, 0.5 mm or more at the thinnest part. This improves the moldability of the lens.
- the method of attaching the light source unit 100 to the second support is not limited to this.
- the light source unit, the light emitting device, and/or the imaging device may be arranged on the second support with the optical axis arbitrarily tilted with respect to the Z-axis direction (for example, the vertical direction).
- the optical axis of the light source unit (more specifically, the light emitting device) is inclined by about 10° to 20° so as to face the side opposite to the first support (for example, the main body portion 210) with respect to the vertical direction.
- the light source unit may be arranged on the second support (for example, the side mirror 220) so as to do so.
- the light emitting unit included in the light emitting device 500 may be any one of the light source units 120a to 120c instead of the light source unit 120.
- the light emitting device 500 may include dimming units 400 , 400 a and 403 .
- each component included in the light source unit according to each embodiment and modification may be realized by being combined arbitrarily within the scope of the present invention.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Multimedia (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
Abstract
Description
[構成]
図1は、実施の形態1に係る移動体200を示す正面図である。図2は、実施の形態1に係る移動体200が備えるサイドミラー220を拡大して示す側面図である。
以上説明したように、実施の形態1に係る発光装置180は、本体部210が支持するサイドミラー220によって、本体部210の側方に撮像装置190と並んで支持され、撮像装置190に検出される光300を出射する発光装置である。発光装置180は、光300を出射する光源部120と、光源部120が出射した光300が入射され、且つ、入射された光300を出射するレンズ130と、を備える。レンズ130の一部には、レンズ130に入射された光300のうちの本体部210側に向けて出射される光300の少なくとも一部を減じる減光部400が設けられている。
続いて、実施の形態1の変形例について説明する。なお、実施の形態1の変形例の説明においては、実施の形態1との差異点を中心に説明し、実施の形態1で説明した構成と実質的に同様の構成についてはそれぞれ同様の符号を付し、説明を一部簡略化又は省略する場合がある。
続いて、実施の形態2について説明する。なお、実施の形態2の説明においては、実施の形態1との差異点を中心に説明し、実施の形態1で説明した構成と実質的に同様の構成についてはそれぞれ同様の符号を付し、説明を一部簡略化又は省略する場合がある。
図6は、実施の形態2に係る発光装置181を示す断面図である。
以上説明したように、実施の形態2に係る発光装置181は、第1支持体(例えば、本体部210)が支持する第2支持体(例えば、サイドミラー220)によって、当該第1支持体の側方に撮像装置190と並んで支持され、撮像装置190に検出される光300を出射する発光装置181である。発光装置181は、光300を出射する光源部120と、光源部120が出射した光300が入射され、且つ、入射された光300を出射するレンズ130aと、レンズ130aから出射された光300のうちの第1支持体側(本実施の形態では、Y軸負方向側)に向かう光300の少なくとも一部を反射又は拡散する減光部403と、を備える。
続いて、実施の形態3について説明する。なお、実施の形態3の説明においては、実施の形態1及び2との差異点を中心に説明し、実施の形態1及び2で説明した構成と実質的に同様の構成についてはそれぞれ同様の符号を付し、説明を一部簡略化又は省略する場合がある。
図7は、実施の形態3に係る発光装置182を示す断面図である。
以上説明したように、実施の形態3に係る発光装置182は、第1支持体(例えば、本体部210)が支持する第2支持体(例えば、サイドミラー220)によって、当該第1支持体の側方に撮像装置190と並んで支持され、撮像装置190に撮像される光300を出射する発光装置である。発光装置182は、光300を出射する光源部120と、光源部120が出射した光300が入射され、且つ、入射された光300を出射するレンズ130aと、を備える。光源部120から出射された光300のうち、レンズ130aにおける第1支持体側(本実施の形態では、Y軸負方向側)に位置する部分に向かう光の量は、レンズ130aにおける第1支持体側とは反対側に位置する部分に向かう光の量よりも少ない。
続いて、実施の形態3の各変形例について説明する。なお、実施の形態3の変形例の説明においては、実施の形態3及び各変形例との差異点を中心に説明し、実施の形態3及び各変形例で説明した構成と実質的に同様の構成についてはそれぞれ同様の符号を付し、説明を一部簡略化又は省略する場合がある。
図8は、実施の形態3の変形例1に係る発光装置183を示す断面図である。
図9は、実施の形態3の変形例2に係る発光装置184を示す断面図である。
図10は、実施の形態3の変形例3に係る発光装置185を示す断面図である。
図11は、実施の形態3の変形例4に係る発光装置186を示す断面図である。
図14は、実施の形態3の変形例5に係る光源部120bを示す断面図である。
図15は、実施の形態3の変形例6に係る発光装置187を示す断面図である。
図16は、実施の形態3の変形例7に係る発光装置187aを示す断面図である。
図17は、実施の形態3の変形例8に係る発光装置188を示す断面図である。
図19は、実施の形態3の変形例9に係る発光装置189を示す断面図である。なお、図19においては、実施の形態3の変形例9に係る発光装置189が備える光源部120近傍を拡大して示している。発光装置189は、光源部及び接着部以外の構成要素が発光装置188と同様である。
続いて、実施の形態4について説明する。なお、実施の形態4の説明においては、実施の形態1~3との差異点を中心に説明し、実施の形態1~3で説明した構成と実質的に同様の構成についてはそれぞれ同様の符号を付し、説明を一部簡略化又は省略する場合がある。
続いて、実施の形態5について説明する。なお、実施の形態5の説明においては、実施の形態1~4との差異点を中心に説明し、実施の形態1~4で説明した構成と実質的に同様の構成についてはそれぞれ同様の符号を付し、説明を一部簡略化又は省略する場合がある。
図21は、実施の形態5に係る発光装置500を示す断面図である。図22は、実施の形態5に係る発光装置500を示す分解斜視図である。
以上説明したように、実施の形態5に係る発光装置500は、第1支持体(例えば、本体部210)が支持する第2支持体(例えば、サイドミラー220)によって、当該第1支持体の側方に撮像装置190と並んで支持され、撮像装置190に撮像される光を出射する発光装置である。発光装置500は、当該光を出射する光源部120と、光源部120が出射した光が入射され、且つ、入射された光を出射するレンズ130cと、を備える。光源部120から出射された光のうち、レンズ130cにおける第1支持体側(本実施の形態では、Y軸負方向側)に位置する部分に向かう光の量は、レンズ130cにおける第1支持体側とは反対側に位置する部分に向かう光の量よりも少ない。また、発光装置500は、さらに、光源部120とレンズ130cとの間に配置された遮蔽物510を備える。遮蔽物510は、光源部120から出射された光のうち、レンズ130cにおける第1支持体側に位置する部分に向かう光の少なくとも一部を吸収、反射、又は、拡散する。発光装置500は、さらに、光源部120が載置される載置面(主面141)を有する基板140cを備える。遮蔽物510は、例えば、レンズ130cと光源部120との間であって、光源部120よりも第1支持体側に位置し、光源部120から出射された光のうち、レンズ130cにおける第1支持体側に位置する部分に向かう光の少なくとも一部を吸収、反射、又は、拡散する遮光部520と、レンズ130cと主面141との間で主面141に載置される平板部530と、を有する。
続いて、実施の形態5の変形例について説明する。なお、実施の形態5の変形例の説明においては、実施の形態5との差異点を中心に説明し、実施の形態5で説明した構成と実質的に同様の構成についてはそれぞれ同様の符号を付し、説明を一部簡略化又は省略する場合がある。
以上、各実施の形態及び各変形例に係る発光装置等について説明したが、本発明は、上記各実施の形態及び各変形例に限定されるものではない。
115、115a、115b ヒートシンク
120、120a、120b、120c 光源部
121、121a、121b、121c 接着部
122、122a 実装基板
122b、122d 実装面
123 発光部
124、124a 発光部用レンズ
130、130a、130b、130c、1300 レンズ
131 内面
132 外面
140、140a、140c 基板
141、141a 主面(載置面)
180、180a、181、182、183、184、185、186、187、187a、188、189、500 発光装置
190 撮像装置
200 移動体
210 本体部(第1支持体)
211 支柱(第1支持体)
220 サイドミラー(第2支持体)
221 支持部(第2支持体)
300、301、302 光
310、310a、310b 光軸
400、400a、403 減光部
401 内面減光部
402 外面減光部
404、405、406、407、510、511 遮蔽物
408、408a 突出部
520、520a 遮光部
530 平板部
Claims (23)
- 第1支持体が支持する第2支持体によって、前記第1支持体の側方に撮像装置と並んで支持され、前記撮像装置に検出される光を出射する発光装置であって、
前記光を出射する光源部と、
前記光源部が出射した前記光が入射され、且つ、入射された前記光を出射するレンズと、を備え、
前記レンズの一部には、前記レンズに入射された前記光のうちの前記第1支持体側に向けて出射される光の少なくとも一部を減ずる減光部が設けられている
発光装置。 - 前記減光部は、前記レンズの前記光源部と対向する面に設けられている
請求項1に記載の発光装置。 - 前記減光部は、前記レンズの前記光源部側と対向する面とは反対側の面に設けられている
請求項1又は2に記載の発光装置。 - 前記減光部は、シボ加工、蒸着、2色成形、インサート成形、又は、レーザ照射により形成される構造を有する
請求項1~3のいずれか1項に記載の発光装置。 - 前記減光部は、前記レンズに入射される光を、吸収、反射、又は、拡散することで、前記レンズから出射する光を減光する
請求項1~4のいずれか1項に記載の発光装置。 - 第1支持体が支持する第2支持体によって、前記第1支持体の側方に撮像装置と並んで支持され、前記撮像装置に検出される光を出射する発光装置であって、
前記光を出射する光源部と、
前記光源部が出射した前記光が入射され、且つ、入射された前記光を出射するレンズと、
前記レンズから出射された前記光のうちの前記第1支持体側に向かう光の少なくとも一部を反射又は拡散する減光部と、を備える
発光装置。 - 前記減光部は、前記レンズの前記光源部側とは反対側の面に接触して配置されている
請求項6に記載の発光装置。 - 第1支持体が支持する第2支持体によって、前記第1支持体の側方に撮像装置と並んで支持され、前記撮像装置に検出される光を出射する発光装置であって、
前記光を出射する光源部と、
前記光源部が出射した前記光が入射され、且つ、入射された前記光を出射するレンズと、を備え、
前記光源部から出射された前記光のうち、前記レンズにおける前記第1支持体側に位置する部分に向かう光の量は、前記レンズにおける前記第1支持体側とは反対側に位置する部分に向かう光の量よりも少ない
発光装置。 - さらに、前記光源部と前記レンズとの間に配置された遮蔽物を備え、
前記遮蔽物は、前記光源部から出射された前記光のうち、前記レンズにおける前記第1支持体側に位置する部分に向かう光の少なくとも一部を吸収、反射、又は、拡散する
請求項8に記載の発光装置。 - さらに、前記光源部が載置される載置面を有する基板を備え、
前記遮蔽物は、
前記レンズと前記光源部との間であって、前記光源部よりも前記第1支持体側に位置し、前記光源部から出射された前記光のうち、前記レンズにおける前記第1支持体側に位置する部分に向かう光の少なくとも一部を吸収、反射、又は、拡散する遮光部と、
前記レンズと前記載置面との間で前記載置面に載置される平板部と、を有する
請求項9に記載の発光装置。 - 前記遮光部は、前記載置面を平面視した場合における前記光源部と少なくとも一部が重なる位置から、前記光源部と前記第1支持体との間まで連続して設けられている
請求項10に記載の発光装置。 - 前記第1支持体は、移動体の本体部であり、
前記第2支持体は、前記本体部に設けられたサイドミラーであり、
前記遮光部は、前記レンズにおける前記移動体側に位置する部分に向かう光のうち、前記光源部よりも前記移動体の進行方向後方側に向かう光を、前記光源部よりも前記移動体の進行方向前方側に向かう光よりも多く、吸収、反射、又は、拡散する
請求項10又は11に記載の発光装置。 - 前記遮蔽物は、ポリカーボネートを含む
請求項9~12のいずれか1項に記載の発光装置。 - さらに、前記光源部が載置される基板を備え、
前記遮蔽物は、前記基板に配置された電子部品である
請求項9に記載の発光装置。 - さらに、
前記光源部が載置される基板と、
前記基板が載置されるヒートシンクと、を備え、
前記遮蔽物は、前記ヒートシンクの一部であり、前記基板を貫通して前記光源部と前記レンズとの間に配置されている
請求項14に記載の発光装置。 - 前記光源部は、
前記光を出射する発光部と、
前記発光部が出射した前記光が入射され、且つ、入射された前記光を前記レンズに向けて出射する発光部用レンズと、を有し、
前記発光部用レンズは、
前記第1支持体側に位置する面が、前記発光部が出射した光の光軸に対して傾斜した平面、又は、前記発光部に向けて突出するように湾曲した湾曲面である
請求項8に記載の発光装置。 - さらに、前記光源部が載置される基板を備え、
前記基板は、前記基板における前記光源部が載置される主面の法線の向きが、前記第1支持体とは反対側に向くように配置されている
請求項8に記載の発光装置。 - さらに、(i)前記レンズに形成され、且つ、前記基板に向かって突出して前記基板と接触している、又は、(ii)前記基板に形成され、且つ、前記レンズに向かって突出して前記レンズと接触している突出部を有し、
前記突出部は、前記基板又は前記レンズにおいて前記第1支持体とは反対側に設けられている
請求項17に記載の発光装置。 - 前記光源部は、
前記光を出射する発光部と、
前記発光部が載置される実装基板と、を有し、
前記実装基板は、前記実装基板における前記発光部が載置される実装面の法線の向きが、前記第1支持体とは反対側に向くように配置されている
請求項8に記載の発光装置。 - さらに、前記光源部が載置される基板、及び、前記光源部と前記基板との間で、前記光源部と前記基板とを接着する接着部と、を備え、
前記接着部は、前記第1支持体側に位置する第1接着部と、前記第1支持体側とは反対側に位置する第2接着部と、を有し、
前記第1接着部は、前記第2接着部よりも前記基板から前記光源部までの幅が広い
請求項8に記載の発光装置。 - 前記光源部は、前記光として近赤外光を出射する
請求項1~20のいずれか1項に記載の発光装置。 - 請求項1~21のいずれか1項に記載の発光装置と、
前記撮像装置と、を備える
光源ユニット。 - 請求項22に記載の光源ユニットと、
前記第1支持体である本体部と、
前記第2支持体であるサイドミラーと、を備え、
前記発光装置は、前記光を路面に向けて出射するように、前記サイドミラーに取り付けられており、
前記撮像装置は、前記路面で反射された前記光を検出することで、前記路面の画像を生成する
移動体。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP22795467.4A EP4332432A1 (en) | 2021-04-26 | 2022-03-29 | Light emitting apparatus, light source unit, and mobile body |
US18/285,363 US20240183510A1 (en) | 2021-04-26 | 2022-03-29 | Light emitting apparatus, light source unit, and mobile body |
CN202290000348.9U CN221137873U (zh) | 2021-04-26 | 2022-03-29 | 发光装置、光源单元及移动体 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2021-073891 | 2021-04-26 | ||
JP2021073891A JP6960589B1 (ja) | 2021-04-26 | 2021-04-26 | 発光装置、光源ユニット、及び、移動体 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022230551A1 true WO2022230551A1 (ja) | 2022-11-03 |
Family
ID=78409686
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2022/015429 WO2022230551A1 (ja) | 2021-04-26 | 2022-03-29 | 発光装置、光源ユニット、及び、移動体 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20240183510A1 (ja) |
EP (1) | EP4332432A1 (ja) |
JP (1) | JP6960589B1 (ja) |
CN (1) | CN221137873U (ja) |
WO (1) | WO2022230551A1 (ja) |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6448053A (en) * | 1987-08-18 | 1989-02-22 | Matsushita Electric Ind Co Ltd | Video camera device |
JPH0388480A (ja) * | 1989-08-30 | 1991-04-12 | Sumitomo Metal Mining Co Ltd | ハレーション防止ccdカメラ装置 |
JP2005041240A (ja) * | 2003-05-23 | 2005-02-17 | Ichikoh Ind Ltd | カメラユニット付きアウターミラー |
JP2005266276A (ja) * | 2004-03-18 | 2005-09-29 | Sony Corp | カメラ |
JP2009300871A (ja) * | 2008-06-16 | 2009-12-24 | Edm Kk | 画像処理装置用照明装置及び方法 |
JP2010266528A (ja) * | 2009-05-12 | 2010-11-25 | Honda Motor Co Ltd | 車両用撮像装置および車両周辺監視装置 |
JP2011071093A (ja) * | 2009-06-01 | 2011-04-07 | Asahi Kasei Corp | 照明器具 |
JP2015071386A (ja) | 2013-10-04 | 2015-04-16 | 矢崎総業株式会社 | 車両用照明装置 |
JP2020019304A (ja) * | 2018-07-30 | 2020-02-06 | パナソニックIpマネジメント株式会社 | 光源ユニット及び車両 |
JP2020019303A (ja) * | 2018-07-30 | 2020-02-06 | パナソニックIpマネジメント株式会社 | 光源ユニット及び車両 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4231962B2 (ja) * | 2003-03-31 | 2009-03-04 | マツダ株式会社 | 車両用監視装置 |
JP2005085621A (ja) * | 2003-09-09 | 2005-03-31 | Nissan Motor Co Ltd | 車両用暗視装置 |
JP4335228B2 (ja) * | 2006-05-18 | 2009-09-30 | 株式会社村上開明堂 | カメラ内蔵型バックミラー |
JP2011184030A (ja) * | 2010-03-11 | 2011-09-22 | Koito Mfg Co Ltd | カメラを内蔵した車両用灯具 |
WO2016152682A1 (ja) * | 2015-03-23 | 2016-09-29 | 株式会社小糸製作所 | 車輌用撮像装置、車輌用灯具及び電子制御ユニット |
KR20150065169A (ko) * | 2015-05-19 | 2015-06-12 | 이스턴 마스텍 주식회사 | 자동차용 후방 카메라 |
US10873687B2 (en) * | 2018-12-19 | 2020-12-22 | Valeo North America, Inc. | IR illuminator to avoid camera field-of-view |
-
2021
- 2021-04-26 JP JP2021073891A patent/JP6960589B1/ja active Active
-
2022
- 2022-03-29 CN CN202290000348.9U patent/CN221137873U/zh active Active
- 2022-03-29 US US18/285,363 patent/US20240183510A1/en active Pending
- 2022-03-29 EP EP22795467.4A patent/EP4332432A1/en active Pending
- 2022-03-29 WO PCT/JP2022/015429 patent/WO2022230551A1/ja active Application Filing
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6448053A (en) * | 1987-08-18 | 1989-02-22 | Matsushita Electric Ind Co Ltd | Video camera device |
JPH0388480A (ja) * | 1989-08-30 | 1991-04-12 | Sumitomo Metal Mining Co Ltd | ハレーション防止ccdカメラ装置 |
JP2005041240A (ja) * | 2003-05-23 | 2005-02-17 | Ichikoh Ind Ltd | カメラユニット付きアウターミラー |
JP2005266276A (ja) * | 2004-03-18 | 2005-09-29 | Sony Corp | カメラ |
JP2009300871A (ja) * | 2008-06-16 | 2009-12-24 | Edm Kk | 画像処理装置用照明装置及び方法 |
JP2010266528A (ja) * | 2009-05-12 | 2010-11-25 | Honda Motor Co Ltd | 車両用撮像装置および車両周辺監視装置 |
JP2011071093A (ja) * | 2009-06-01 | 2011-04-07 | Asahi Kasei Corp | 照明器具 |
JP2015071386A (ja) | 2013-10-04 | 2015-04-16 | 矢崎総業株式会社 | 車両用照明装置 |
JP2020019304A (ja) * | 2018-07-30 | 2020-02-06 | パナソニックIpマネジメント株式会社 | 光源ユニット及び車両 |
JP2020019303A (ja) * | 2018-07-30 | 2020-02-06 | パナソニックIpマネジメント株式会社 | 光源ユニット及び車両 |
Also Published As
Publication number | Publication date |
---|---|
CN221137873U (zh) | 2024-06-14 |
JP2022168437A (ja) | 2022-11-08 |
EP4332432A1 (en) | 2024-03-06 |
US20240183510A1 (en) | 2024-06-06 |
JP6960589B1 (ja) | 2021-11-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN110753169B (zh) | 具有2部件元件的照相机 | |
JP2002036949A (ja) | 照明装置 | |
JPWO2017086251A1 (ja) | 灯具ユニット | |
US10976021B2 (en) | Light projecting device having high light utilization efficiency | |
WO2019177050A1 (ja) | 車両用前照灯 | |
JP2017208206A (ja) | 照明装置 | |
JP6624550B2 (ja) | 照明器具 | |
JP6990851B2 (ja) | 光源ユニット及び車両 | |
JP2005129354A (ja) | Led照明装置 | |
KR20130103603A (ko) | 자동차의 내부 조명을 위한 장치 | |
US10429027B2 (en) | Lamp unit, and lighting device and vehicle lamp using same | |
WO2022230551A1 (ja) | 発光装置、光源ユニット、及び、移動体 | |
JP7108853B2 (ja) | 光源ユニット及び車両 | |
TWI694934B (zh) | 微型化光線投射裝置 | |
CN112393198B (zh) | 微型化光线投射装置 | |
WO2023085066A1 (ja) | 光源ユニット及び車両 | |
JP2019012617A (ja) | 照明器具 | |
EP3403020A1 (en) | Lighting arrangement with exact positioning of an optical element | |
WO2024062910A1 (ja) | 発光装置、光源ユニット、および、車両 | |
CN112393195A (zh) | 光线投射装置 | |
JP2006173031A (ja) | 車両用照明装置 | |
JP7474683B2 (ja) | 車両用灯具 | |
US11567241B2 (en) | Light projection lens and mobile object | |
CN210107264U (zh) | 微型化光线投射装置 | |
JP6851016B2 (ja) | 照明装置および光学部材 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 22795467 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 18285363 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2022795467 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 2022795467 Country of ref document: EP Effective date: 20231127 |