JP4973692B2 - Optical sensor device for moving body - Google Patents

Description

  The present invention relates to a moving body photosensor device having a light receiving element.

  Conventionally, as disclosed in Patent Document 1, for example, a composite sensor (a moving body photosensor device) in which a plurality of sensors having light receiving elements are mounted on one substrate has been proposed. FIG. 1B of Patent Document 1 simply shows that a solar radiation sensor / illuminance sensor in which a solar radiation sensor and an auto light sensor (illuminance sensor) are integrated is mounted on a substrate. Yes.

JP 2005-241339 A

  By the way, Patent Document 1 does not describe any specific explanation for integrally configuring the solar radiation sensor and the illuminance sensor, and has a configuration that satisfies the functions required by the solar radiation sensor and the illuminance sensor. It is unclear whether or not it is.

  In the case of a solar radiation sensor, a function for detecting whether the sun is located in the upper left direction or the upper right direction of the vehicle is required. For example, when sunlight is radiated from the upper left direction of the vehicle, the sensible temperature of a person riding on the left side of the vehicle will be on the right side of the vehicle due to direct sunlight even though the vehicle temperature is constant. Increased compared to the temperature of the person on board. In such a case, the temperature of the air conditioner installed on the left side of the vehicle is adjusted to be lower than the set temperature of the air conditioner installed on the right side of the vehicle so that the sensible temperature of the passenger is constant. It is required to do. As described above, in order to automatically adjust the set temperature of the air conditioner, the solar radiation sensor is required to have a function of detecting whether the sun is located in the upper left direction or the upper right direction of the vehicle.

  On the other hand, the illuminance sensor is required to have a function of detecting the illuminance around the vehicle and the illuminance in front of the vehicle. For example, when the vehicle is in a situation where it enters a tunnel in the daytime, the illumination in the forward direction of the vehicle is dark although the illuminance around the vehicle is bright. Also, when the vehicle is in a situation where it can escape from the tunnel in the daytime, the illuminance in the forward direction of the vehicle is bright even though the illuminance around the vehicle is dark, so that it is required to turn off the light. To further illustrate, when the vehicle passes under the bridge, the illuminance around the vehicle temporarily becomes dark, but since the illuminance around the vehicle immediately becomes brighter, it is determined that lighting is not necessary. Is required. As described above, in order to automatically control the driving of the light, the illuminance sensor is required to have a function of detecting the illuminance around the vehicle and the illuminance in the forward direction of the vehicle.

  As described above, since the functions required by the solar radiation sensor and the illuminance sensor are different and there is no description in Patent Document 1 that satisfies the functions required by each sensor, It cannot be said that the optical sensor device is a moving body optical sensor device that satisfies the functions required by the solar radiation sensor and the illuminance sensor and that is configured integrally with the solar radiation sensor and the illuminance sensor.

  Therefore, in view of the above problems, the present invention has an object to provide an optical sensor device for a moving body that satisfies the functions required by a solar radiation sensor and an illuminance sensor, and in which the solar radiation sensor and the illuminance sensor are integrated. To do.

In order to achieve the above-described object, the invention according to claim 1 is an optical sensor for a moving body having at least three light receiving elements and a refraction part that refracts light and is disposed above the light receiving elements. In the apparatus, an incident surface on which light in the refracting portion is incident is inclined so as to approach the light receiving element from the edge portion toward the apex, and the incident surface includes a plurality of edges connecting the edge portion and the apex. It is divided into at least three inclined surfaces via a lane marking, and the entire light receiving surface of at least one light receiving element is opposed to each inclined surface, and is installed in the moving body as an inclined surface. A first inclined surface in which the area projected on the first vertical surface facing the forward direction, which is the traveling direction of the moving body, is larger than the area projected on the first vertical surface in the other inclined surfaces, and the upper left of the moving body The projected area on the second vertical plane facing the direction is another slope The second inclined surface larger than the area projected on the second vertical surface in FIG. 5 and the area projected on the third vertical surface facing the upper right direction of the moving body are projected on the third vertical surface on the other inclined surfaces. And a third inclined surface larger than the area.

  As described above, according to the present invention, in a state in which the moving body photosensor device is installed on the moving body, at least a part of the incident surface on which the light is incident has the largest light incident area along the front direction. It is divided into an inclined surface, a second inclined surface having the largest light incident area along the upper left direction, and a third inclined surface having the largest light incident area along the upper right direction. Therefore, the light receiving element facing the first inclined surface (hereinafter referred to as the first light receiving element) mainly receives light along the front direction, and the light receiving element facing the second inclined surface (hereinafter referred to as the second light receiving element). Is configured to receive light mainly along the upper left direction, and a light receiving element (hereinafter referred to as a third light receiving element) facing the third inclined surface mainly receives light along the upper right direction. That is, the light receiving range of the first light receiving element is mainly limited to the forward direction, the light receiving range of the second light receiving element is mainly limited to the upper left direction, and the light receiving range of the third light receiving element is mainly limited to the upper right direction. ing.

Thus, since the directivity of each light receiving element is set to a different angle, the calculation is based on the output signal of each light receiving element and the directivity angle (front direction, upper left direction, upper right direction) of each light receiving element. The solar radiation amount, the solar elevation angle, and the solar azimuth angle can be obtained. Therefore, the mobile photosensor device according to the present invention is a mobile photosensor device that satisfies the functions required of a solar radiation sensor. In addition, with the configuration described above, the illuminance in the forward direction of the moving body is detected by the first light receiving element, and the illuminance above the moving body (illuminance around the moving body) is detected by the second light receiving element and the third light receiving element. Can be detected. Since the second light receiving element receives light along the upper left direction and the third light receiving element receives light along the upper right direction, the output signal of the second light receiving element and the output signal of the third light receiving element are combined. The illuminance in the upward direction can be detected. As a result, the photosensor device for a moving body according to the present invention is a photosensor device for a mobile body that satisfies the function of detecting the illuminance around the mobile body required by the illuminance sensor and the illuminance in front of the mobile body. Yes. From the above, the photosensor device for a moving body according to the present invention is a photosensor device for a mobile body that satisfies the functions required by the solar radiation sensor and the illuminance sensor, and in which the solar radiation sensor and the illuminance sensor are integrated. Yes.

The invention according to claim 2 is an optical sensor device for a moving body having at least three light receiving elements and a refracting part that refracts light and is disposed above the light receiving element. The incident surface on which light is incident is divided into at least three inclined surfaces, and the entire light receiving surface of at least one light receiving element is opposed to each inclined surface, and the inclined surface is installed on the moving body. The first inclined surface having an area projected on the first vertical surface facing the forward direction that is the traveling direction of the moving body is larger than the area projected on the first vertical surface in the other inclined surfaces, and the moving body A second inclined surface having an area projected on the second vertical surface facing the upper left direction of the other than the area projected on the second vertical surface of the other inclined surfaces, and a third surface facing the upper right direction of the moving body The area projected on the vertical plane is the third vertical plane on the other inclined plane. Look including a third inclined surface is larger than the projected area, has a radiation unit for irradiating the pulsed light on the windshield of the moving body, the light receiving element is pulse-like light reflected by the windshield Is received.

The pulsed light emitted from the irradiation unit is irradiated radially from the irradiation unit. The radially irradiated pulsed light is incident on the windshield of the moving body. Depending on the incident angle, some light is transmitted through the windshield, and some light is reflected by the windshield. A part of the reflected pulsed light enters the light receiving element. As described above, since the pulsed light is emitted radially from the irradiating unit, the region of light reflected by the windshield and incident on the light receiving element in the windshield has a certain width. . Hereinafter, the function and effect of the invention according to claim 2 will be described using such a region as a reflection region. When raindrops are not attached to the reflection region, all of the pulsed light incident on the reflection region is reflected by the windshield, and the reflected pulsed light enters the light receiving element. In such a case, the amount of pulsed light incident on the light receiving element is maximized. Unlike the case described above, when raindrops are attached to a part of the reflective area, the pulsed light incident on the area where the raindrops are attached is formed of glass. Since the refractive index of the windshield and the refractive index of the raindrop are close to each other, the light is transmitted to the outside through the windshield and the raindrop. Of course, of the pulsed light incident on the reflective area, the pulsed light incident on the area where no raindrops are attached is reflected by the windshield, and the reflected pulsed light is incident on the light receiving element. . Therefore, when raindrops are attached to a part of the reflection region, the incident amount of pulsed light incident on the light receiving element is reduced as compared with the case where no raindrops are attached to the reflection region. In this way, the amount of incident pulsed light incident on the light receiving element varies depending on the presence or absence of raindrops, so raindrops adhere to the reflective area by determining fluctuations in the output signal of the light receiving element due to pulsed light. It can be determined whether or not. That is, it can be determined whether or not it is raining. In addition, the fluctuation | variation of the output signal of the light receiving element by pulsed light can be discriminate | determined by differentiating the output signal of an irradiation part. The light of the irradiating part is pulsed, and sunlight, street lights, etc. are continuous light. Therefore, by differentiating the output signal of the irradiation unit, it is possible to remove continuous light components such as sunlight and street lamps and extract only the pulsed light components. It can be determined whether or not raindrops are attached to the reflection region by increasing or decreasing the amplitude of the extracted pulsed light component. Of course, when the amount of raindrops adhering to the reflection region increases, the incident amount of pulsed light incident on the light receiving element decreases. Therefore, it is possible to determine the amount of raindrops adhering to the reflection region by determining the degree of reduction in the output signal of the light receiving element due to the pulsed light. Since rain randomly falls on the windshield, it is expected that the ratio of raindrops adhering to the windshield and the ratio of raindrops adhering to the reflection area will be approximately equal. Therefore, it is possible to determine the amount of raindrops adhering to the windshield by determining the degree of reduction in the output signal of the light receiving element due to pulsed light. That is, it is possible to determine the amount of rainfall. Thus, in the invention according to claim 2, the rain sensor is constituted by the light receiving element and the irradiation unit, and the solar radiation sensor, the illuminance sensor, and the rain sensor share the light receiving element. It has become. Thereby, since the number of light receiving elements is reduced as compared with a configuration in which each of the solar radiation sensor, the illuminance sensor, and the rain sensor independently includes the light receiving elements, the cost can be reduced.

As the refracting portion, for example, a prism can be employed as described in claim 3 . Further, as the refracting portion, for example, as described in claim 4 , a Fresnel lens in which a plurality of saw-like grooves are formed on each inclined surface can be adopted.

  The refraction angle of the prism can be adjusted by appropriately setting the inclination angle of the entire prism. Therefore, when a prism is employed as the refracting portion, a thickness sufficient to adjust the tilt angle (refractive angle) must be secured in advance. On the other hand, the refraction angle of the Fresnel lens can be adjusted by appropriately setting the inclination angle of the groove. Therefore, when a Fresnel lens is used as the refracting portion, it is not necessary to ensure a thickness sufficient to adjust the refraction angle. As described above, when the Fresnel lens is employed as the refracting portion, the thickness of the refracting portion can be reduced as compared with the case where a prism is employed as the refracting portion. Therefore, the physique of the mobile photosensor device can be reduced.

As described in claim 5 , the light receiving element is formed on the same plane of the semiconductor substrate, the refracting portion is formed of a resin having transparency, the semiconductor substrate is mounted on the lead frame, and the lead frame, the semiconductor substrate, Is preferably integrally molded with a resin forming the refracting portion. According to this, compared with the moving body optical sensor device in which the light receiving element and the refracting portion are separated from each other, the physique of the moving body optical sensor device can be reduced by the distance. In addition, unlike the moving body optical sensor device in which the light receiving element and the refracting part are separated from each other, it is possible to suppress the relative position of the light receiving element and the refracting part from changing.

Since the operational effect of the invention described in claim 6 is the same as that of the invention described in claim 2 , the description thereof is omitted.

  A processing unit that processes an output signal of the light receiving element and a connector unit that electrically connects the processing unit and an external device, wherein the connector unit transmits and receives radio waves. In addition, a configuration including an antenna that generates electric power by receiving radio waves is preferable. According to this, transmission / reception of signals between the moving body photosensor device and the external device and power feeding of the moving body photosensor device can be performed in a non-contact manner.

  According to the eighth aspect of the present invention, it is preferable that the moving body has a flat portion facing the windshield, and the flat portion has a bonding portion provided on the surface facing the windshield. According to this, the optical sensor device for moving bodies can be bonded and fixed to the windshield of the moving body via the bonding portion.

  Since the intensity of light along an arbitrary direction can be calculated by synthesizing output signals of light receiving elements that receive light along different directions, the amount of solar radiation, the solar elevation angle, The solar azimuth angle can be calculated based on the output signal of the light receiving element that has received light along at least three directions. In addition, as described in claim 10, the illuminance in the forward direction of the moving body and the illuminance above the moving body can be calculated based on the output signal of the light receiving element that has received light along at least two directions. it can. The three directions described above correspond to, for example, the front direction, the upper left direction, and the upper right direction.

It is sectional drawing which follows the perpendicular direction which shows schematic structure of the optical sensor apparatus for moving bodies which concerns on 1st Embodiment. It is sectional drawing which follows the horizontal direction which shows schematic structure of the optical sensor apparatus for moving bodies which concerns on 1st Embodiment. It is a top view which shows schematic structure of the optical sensor apparatus for moving bodies which concerns on 1st Embodiment. It is explanatory drawing for demonstrating an elevation angle and a left-right angle, (a) shows an elevation angle, (b) shows a left-right angle. It is a graph which shows the output characteristic of each light receiving element, (a) shows the elevation angle dependence of an output signal, (b) shows the right-and-left angle dependence of an output signal. It is a top view which shows the modification of the optical sensor apparatus for moving bodies which concerns on 1st Embodiment. It is sectional drawing which follows the horizontal direction which shows the modification of the optical sensor apparatus for moving bodies which concerns on 1st Embodiment. It is a figure for demonstrating the modification of a light-receiving part, (a) shows sectional drawing of a refractive part and a light-receiving part, (b) shows the top view of a refractive part and a light-receiving part. It is sectional drawing which shows the modification of a refractive part. It is a top view which shows the deformability of a connector part. It is sectional drawing which follows the perpendicular direction which shows schematic structure of the optical sensor apparatus for moving bodies which concerns on 2nd Embodiment. It is a top view which shows schematic structure of the optical sensor apparatus for moving bodies which concerns on 2nd Embodiment. It is sectional drawing which follows the perpendicular direction which shows schematic structure of the optical sensor apparatus for moving bodies which concerns on 3rd Embodiment. It is a top view which shows schematic structure of the optical sensor apparatus for moving bodies which concerns on 3rd Embodiment. It is a top view which shows the modification of the optical sensor apparatus for moving bodies which concerns on 3rd Embodiment.

  DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment in which an optical sensor device for a moving body 100 according to the present invention is installed on a windshield (front glass) of a vehicle will be described with reference to the drawings.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
(First embodiment)
FIG. 1 is a cross-sectional view along the vertical direction showing a schematic configuration of the moving body photosensor device according to the first embodiment. FIG. 2 is a cross-sectional view along the horizontal direction showing a schematic configuration of the moving body photosensor device according to the first embodiment. FIG. 3 is a plan view showing a schematic configuration of the moving body photosensor device according to the first embodiment. FIG. 4 is an explanatory diagram for explaining the elevation angle and the left and right angles, where (a) shows the elevation angle and (b) shows the left and right angles. FIG. 5 is a graph showing the output characteristics of each light receiving element, where (a) shows the elevation angle dependency of the output signal, and (b) shows the left-right angle dependency of the output signal. In FIG. 3, a wiring 14 to be described later is omitted for convenience.

  First, the elevation angle and the left and right angles will be described with reference to FIG. As shown in FIG. 4A, the elevation angle indicates an angle from the horizontal plane upward, and the left and right angles indicate the front angle of the vehicle in the azimuth angle as shown in FIG. 4B. In the present embodiment, the front direction described in the claims indicates a direction with an elevation angle of 0 ° and a left-right angle of 0 °, and the upper left direction described in the claims indicates a direction with an elevation angle of 70 ° and a horizontal angle of −50 °. The upper right direction described in the claims indicates a direction with an elevation angle of 70 ° and a left / right angle of + 50 °. Needless to say, the forward direction, the upper left direction, and the upper right direction are merely examples, and it is needless to say that each direction is not limited to the above example. For example, the forward direction is a direction with an elevation angle of 10 ° and a lateral angle of 0 °, the upper left direction is a direction of an elevation angle of 45 °, a lateral angle of −40 °, and the upper right direction is a direction of an elevation angle of 45 ° lateral angle + 40 °. May be.

  As shown in FIGS. 1 and 2, the moving body photosensor device 100 includes a light receiving unit 10 that converts light into an electrical signal and a refraction unit 30 that refracts light as main parts. The moving body photosensor device 100 according to this embodiment includes a mounting unit 40 that mounts the light receiving unit 10 and holds the refraction unit 30, a processing unit 50 that processes an output signal of the light receiving unit 10, and the processing unit. 50, a connector part 60 for electrically connecting an external device, the connector part 60, the processing part 50, and the mounting part 40, and a wiring board 70 for electrically connecting them, and the wiring board 70 A connector unit 60, a processing unit 50, and a storage unit 80 for storing the mounting unit 40.

  As illustrated in FIGS. 1 to 3, the light receiving unit 10 includes a first light receiving element 11, a second light receiving element 12, and a third light receiving element 13. Each is electrically connected to the mounting unit 40 via the wiring 14, and output signals of the light receiving elements 11 to 13 are input to the processing unit 50 via the wiring 14, the mounting unit 40, and the wiring substrate 70. It is like that. Each of the light receiving elements 11 to 13 according to the present embodiment is an electronic substrate on which a photodiode is formed on one surface, and the back surface of the one surface on which the photodiode is formed on the electronic substrate is wired via an adhesive (not shown). The substrate 70 is fixed to the surface facing the windshield X.

  As shown in FIG. 3, the refracting unit 30 is a prism in which an incident surface 30 a on which light is incident is divided into three inclined surfaces 31 to 33. The incident surface 30a of the refracting portion 30 faces the inner surface of the windshield X, and light outside the vehicle enters the incident surface 30a via the windshield X. Since the refracting unit 30 is a feature point of the moving body photosensor device 100 according to the present embodiment, it will be described in detail later.

  The mounting unit 40 mounts the light receiving unit 10. A plurality of pads (not shown) are formed on the mounting surface 40a on which the light receiving unit 10 is mounted in the mounting unit 40, and a plurality of pads (respectively) corresponding to the pads formed on the mounting surface 40a are formed on the back surface of the mounting surface 40a. (Not shown) is formed. The pads formed on the mounting surface 40a and the pads formed on the back surface of the mounting surface 40a are electrically connected via wiring patterns (not shown) formed inside the mounting portion 40, respectively. Yes. The pad formed on the mounting surface 40a is electrically connected to each of the light receiving elements 11 to 13 through the wiring 14, and the pad formed on the back surface of the mounting surface 40a is the pad ( It is mechanically and electrically connected via a bump (not shown) and a bump (not shown). The electrical connector portion between the light receiving elements 11 to 13 and the mounting portion 40 and the electrical connector portion between the mounting portion 40 and the wiring board 70 are covered and protected by a coating resin 15 having transparency. The mounting portion 40 according to the present embodiment has a box-like shape having an opening 40b, and in the central direction of the opening 40b for holding the refracting portion 30 on the wall surface constituting the opening 40b. A holding portion (not shown) having an urging force toward it is provided. The mounting surface 40a described above corresponds to the inner surface of the bottom of the mounting portion 40 having a box shape.

  The processing unit 50 processes the output signal of the light receiving unit 10. The processing unit 50 is mechanically and electrically connected to the wiring substrate 70 via bumps, and is electrically connected to the light receiving unit 10 via the bumps, wiring substrate 70, mounting unit 40, and wiring 14. It is connected to the. The processing unit 50 calculates the absolute value of the output signal of the light receiving unit 10 based on the in-vehicle information input from the connector unit 60.

  The connector unit 60 electrically connects the processing unit 50 and an external device (ECU mounted on the vehicle). The connector part 60 is in a fitting relationship with a terminal (not shown) of a wire harness that is electrically connected to the ECU, and mechanically and electrically connects the wire harness to the optical sensor device 100 for moving body. Fulfills the function. The connector part 60 is mechanically and electrically connected to the wiring board 70 via the lead 61, and is electrically connected to the connector part 60 via the lead 61, the wiring board 70, and the bump. Yes. From the vehicle ECU, the inclination angle of the windshield X, the transmittance of the windshield X, and the like, which are in-vehicle information, are input to the connector unit 60. These in-vehicle information is input from the connector unit 60 to the processing unit 50 via the leads 61, the wiring board 70, and the bumps, and the processing unit 50 determines the absolute output signal of the light receiving unit 10 based on the in-vehicle information. A value is calculated. The absolute value of the output signal of the light receiving unit 10 calculated by the processing unit 50 is input to the ECU via the bump, the wiring board 70, the lead 61, the connector unit 60, and the wire harness. The ECU is required to automatically adjust the set temperature of the air conditioner mounted on the vehicle based on the output signal of the processing unit 50, and the information required to automatically control the driving of the light mounted on the vehicle. Is calculated.

  The wiring board 70 mounts the mounting part 40, the processing part 50, and the connector part 60, and fulfills a function of electrically connecting them. The wiring board 70 according to the present embodiment is a double-sided printed board having an insulating substrate, wiring patterns formed on both surfaces of the insulating substrate, and pads corresponding to end portions of the wiring pattern. A through hole is formed in the inner layer of the insulating substrate to electrically connect the wiring pattern formed on the front surface and the wiring pattern formed on the back surface.

  The storage unit 80 stores the mounting unit 40, the processing unit 50, the connector unit 60, and the wiring board 70. As shown in FIG. 1, the storage portion 80 has a box shape and has two openings 81 and 82. From one opening 81, the connection part with the wire harness in the connector part 60 is exposed outside, and from the other opening 82, the incident surface 30a of the refracting part 30 is exposed outside. An adhesive portion 83 is provided on the facing surface 80 a facing the windshield X, and the moving body photosensor device 100 is fixed to the windshield X via the adhesive portion 83. In addition, the flat part as described in a claim corresponds to the opposing surface 80a.

  Next, the refraction part 30 which is a characteristic point of the optical sensor device for a moving body 100 according to this embodiment will be described in detail. As shown in FIGS. 1 to 3, the incident surface 30a of the refracting portion 30 is inclined so as to be separated from the windshield X from the circular edge portion 30c toward the apex 30d. It is divided into three inclined surfaces 31 to 33 via three partition lines connecting the vertex 30d, and the facing surface 30b facing the light receiving unit 10 which is the back surface of the incident surface 30a is parallel to the inner surface of the windshield X. It has become. In other words, when the incident surface 30a is expressed in other words, the incident surface 30a corresponds to a side surface of a cone formed by a straight line extending radially from the vertex 30d to a virtual bottom surface having the edge 30c as a circumference, It can be said that the side surface is divided into three by the lane markings described above. In the present embodiment, the first inclined surface 31 faces the entire light receiving surface of the first light receiving element 11 via the facing surface 30b, and the second inclined surface 32 of the second light receiving element 12 passes through the facing surface 30b. The third inclined surface 33 faces the entire light receiving surface of the third light receiving element 13 via the facing surface 30b.

  If the angle determined by the elevation angle and the azimuth angle is a solid angle, the solid angles of the three inclined surfaces 31 to 33 are different from each other. Therefore, the projection planes of the three inclined surfaces 31 to 33 projected on the plane perpendicular to the arbitrary solid angle excluding the solid angle perpendicular to the virtual plane including the edge portion 30c must always have a magnitude relationship. Has come to occur.

  If the surface facing the front direction is the first vertical surface, the surface facing the upper left direction is the second vertical surface, and the surface facing the upper right direction is the third vertical surface, the inclination of the first inclined surface 31 is The area projected on the first vertical surface of the first inclined surface 31 is determined to be larger than the area projected on the first vertical surface of the other inclined surfaces 32 and 33, and the inclination of the second inclined surface 32 is the second The area projected on the second vertical surface of the inclined surface 32 is determined to be larger than the area projected on the second vertical surface of the other inclined surfaces 33 and 31, and the inclination of the third inclined surface 33 is the third inclined surface. The area projected on the third vertical surface of the surface 33 is determined to be larger than the area projected on the third vertical surface of the other inclined surfaces 31 and 32. Thereby, more light along the front direction enters the first inclined surface 31 than the other inclined surfaces 32 and 33, and light along the upper left direction enters the second inclined surface 32 with the other inclined surfaces 33 and 33. More than 31 light enters, and the light along the upper right direction enters the third inclined surface 33 more than the other inclined surfaces 31 and 32. Thereby, more light along the front direction is incident on the first light receiving element 11 than the second light receiving element 12 and the third light receiving element 13 by the first inclined surface 31, and the second inclined surface 32 causes the upper left direction. More light is incident on the second light receiving element 12 than the third light receiving element 13 and the first light receiving element 11, and the third inclined surface 33 causes light along the upper right direction to be incident on the first light receiving element 11 and the second light receiving element. More than the element 12, the light is incident on the third light receiving element 13. In other words, the light receiving range of the first light receiving element 11 is mainly limited to the front direction by the first inclined surface 31, and the light receiving range of the second light receiving element 12 is mainly limited to the upper left direction by the second inclined surface 32. With the third inclined surface 33, the light receiving range of the third light receiving element 13 is mainly limited to the upper right direction.

  Next, the dependence of the light receiving elements 11 to 13 on the incident angle of light will be described with reference to FIG. The vertical axis of the graph shown in FIG. 5A indicates the relative sensitivity (%) of the light receiving elements 11 to 13 when the output signal of the light receiving elements 11 to 13 is 100%, and the horizontal axis is The elevation angle of the incident angle of light is shown. The vertical axis of the graph shown in FIG. 5B indicates the relative sensitivity (%) of the light receiving elements 11 to 13 as in the vertical axis of FIG. 5A, and the horizontal axis indicates the left and right angles of the incident angle of light. Indicates.

  As shown in FIGS. 5A and 5B, the sensitivity of each of the light receiving elements 11 to 13 has a characteristic that takes a peak value with respect to a certain incident angle and gently attenuates from the peak value. As shown in FIG. 5A, when the incident angle of light is parallel to the elevation angle of 0 °, the sensitivity of the first light receiving element 11 is the highest, and the second light receiving element 12 and the third light receiving element 13 have the highest sensitivity. Sensitivity is low. Accordingly, it can be seen that the sensitivity of the first light receiving element 11 is high and the sensitivity of the second light receiving element 12 and the third light receiving element 13 is low with respect to light incident from the horizontal direction. On the other hand, when the incident angle of light is parallel to the elevation angle of 70 °, the sensitivity of the second light receiving element 12 and the third light receiving element 13 is the highest, and the sensitivity of the first light receiving element 11 is decreased. Yes. Thereby, it turns out that the sensitivity of the 2nd light receiving element 12 and the 3rd light receiving element 13 is high, and the sensitivity of the 1st light receiving element 11 is low with respect to the light which enters the vehicle from the upper direction.

  Further, as shown in FIG. 5B, when the incident angle of light is parallel to the right / left angle of 0 °, the sensitivity of the first light receiving element 11 is the highest, and the second light receiving element 12 and the third light receiving element. The sensitivity of the element 13 is low. Thereby, it turns out that the sensitivity of the 1st light receiving element 11 is high with respect to the light which injects from the front of a vehicle, and the sensitivity of the 2nd light receiving element 12 and the 3rd light receiving element 13 is low. On the other hand, when the incident angle of light is parallel to the left-right angle of −50 °, the sensitivity of the second light receiving element 12 is the highest, and the sensitivity of the third light receiving element 13 and the first light receiving element 11 is low. It has become. Accordingly, it can be seen that the sensitivity of the second light receiving element 12 is high and the sensitivity of the third light receiving element 13 and the first light receiving element 11 is low with respect to light incident from the left side of the vehicle. When the light incident angle is parallel to the left / right angle + 50 °, the sensitivity of the third light receiving element 13 is the highest, and the sensitivity of the first light receiving element 11 and the second light receiving element 12 is low. Thus, it can be seen that the sensitivity of the third light receiving element 13 is high and the sensitivity of the first light receiving element 11 and the second light receiving element 12 is low with respect to light incident from the right side of the vehicle.

  From the above, it can be seen that the sensitivity of the first light receiving element 11 is the highest when the incident angle of light is 0 ° in elevation and 0 ° in the horizontal direction, that is, along the front direction. In other words, it can be seen that the light receiving range of the first light receiving element 11 is mainly limited to the forward direction. It can also be seen that the sensitivity of the second light receiving element 12 is the highest when the incident angle of light is 70 ° elevation angle and −50 ° right angle, that is, along the upper left direction. In other words, it can be seen that the light receiving range of the second light receiving element 12 is mainly limited to the upper left direction. It can also be seen that the sensitivity of the third light receiving element 13 is the highest when the incident angle of light is an elevation angle of 70 ° left-right angle + 50 °, that is, along the upper right direction. In other words, it can be seen that the light receiving range of the third light receiving element 13 is mainly limited to the upper right direction.

  Next, functions and effects of the moving body photosensor device 100 according to the present embodiment will be described. As described above, the light receiving range of the first light receiving element 11 is mainly limited to the front direction by the first inclined surface 31, and the light receiving range of the second light receiving element 12 is mainly limited to the upper left direction by the second inclined surface 32. The third inclined surface 33 has a configuration in which the light receiving range of the third light receiving element 13 is mainly limited to the upper right direction.

  Thereby, by calculating based on the output signal of each light receiving element 11-13 and the directivity angle (front direction, upper left direction, upper right direction) of each light receiving element 11-13, the solar radiation amount, the solar radiation elevation angle, and the solar radiation direction The angle can be determined. Therefore, the moving body photosensor device 100 according to the present embodiment is a moving body photosensor device that satisfies the functions required of the solar radiation sensor.

  Further, with the configuration described above, the illuminance in the forward direction can be detected by the first light receiving element 11, and the illuminance in the upper left direction and the upper right direction can be detected by the second light receiving element 12 or the third light receiving element 13. When the sun is located in the upper left direction or the upper right direction, the output signal of either the second light receiving element 12 or the third light receiving element 13 has a property that depends on the position of the sun, The output signal of the third light receiving element 13 has a property that depends on the illuminance around the vehicle. Therefore, by combining the intensity of the output signal of the second light receiving element 12 and the intensity of the output signal of the third light receiving element 13 in the ECU, an output signal that depends on the ambient illuminance can be obtained. Thereby, the optical sensor device 100 for moving bodies which concerns on this embodiment is a photosensor device for moving bodies which satisfy | fills the function requested | required of an illuminance sensor.

  As described above, the moving body photosensor device 100 according to the present embodiment is a moving body photosensor device in which the functions required by the solar radiation sensor and the illuminance sensor are satisfied, and the solar radiation sensor and the illuminance sensor are integrated. It has become.

  In the present embodiment, the incident surface 30a is divided into three inclined surfaces 31 to 33, and the respective inclined surfaces 31 to 33 and the entire light receiving surface of any one of the light receiving elements 11 to 13 are disposed via the opposing surface 30b. The example which opposes. However, the number of inclined surfaces and the number of light receiving elements are not limited to the above example. For example, as illustrated in FIG. 6, the light receiving unit 10 may include four light receiving elements 11 to 13 and 16 and the incident surface 30 a may be divided into four inclined surfaces 31 to 34. In this case, the fourth inclined surface 34 and the entire light receiving surface of the fourth light receiving element 16 are opposed to each other through the facing surface 30b, and the light receiving range of the fourth light receiving element 16 is mainly due to the fourth inclined surface 34. The elevation angle is limited to 90 ° and the left / right angle is 0 °. FIG. 6 is a plan view showing a modification of the moving body photosensor device according to the first embodiment. In FIG. 6, the wiring 14 is omitted for convenience.

  In the present embodiment, as shown in FIG. 1, the light receiving unit 10 and the refracting unit 30 are separated from each other, and the relative position is determined by the mounting unit 40. However, for example, as illustrated in FIG. 7, a configuration in which the light receiving unit 10 and the mounting unit 40 are integrally molded with a transparent resin that configures the refraction unit 30 may be employed. In the case of this modification, the light receiving unit 10 includes a semiconductor substrate 17 and light receiving elements 11 to 13 formed on the semiconductor substrate 17, the mounting unit 40 includes a lead frame, and the refraction unit 30 includes an acrylic resin. It is constituted by. According to this, the physique of the moving body photosensor device 100 is made smaller by the separated distance compared to the moving body photosensor device 100 configured by separating the light receiving unit 10 and the refracting unit 30 from each other. Can do. In addition, unlike the moving body optical sensor device 100 in which the light receiving unit 10 and the refraction unit 30 are separated from each other, it is possible to suppress the relative position of the light reception unit 10 and the refraction unit 30 from changing. it can. FIG. 7 is a cross-sectional view along the horizontal direction showing a modification of the moving body photosensor device according to the first embodiment. In FIG. 7, the processing unit 50, the wiring board 70, and the storage unit 80 are omitted for convenience.

  In the present embodiment, the light receiving unit 10 includes three light receiving elements 11 to 13, and the entire light receiving surface of the first light receiving element 11 is opposed to the first inclined surface 31 via the facing surface 30 b, and the second light receiving light is received. In the example, the entire light receiving surface of the element 12 faces the second inclined surface 32, and the entire light receiving surface of the third light receiving element 13 faces the third inclined surface 33. However, for example, as shown in FIGS. 8A and 8B, the light receiving unit 10 includes a semiconductor substrate 17 and at least three or more light receiving elements 18 formed on the semiconductor substrate 17. It is also possible to adopt a configuration in which the light receiving surfaces of a plurality of light receiving elements face one inclined surface. FIGS. 8A and 8B are diagrams for explaining a modification of the light receiving unit. FIG. 8A is a cross-sectional view of the refracting unit and the light receiving unit, and FIG.

  In this embodiment, the example which employ | adopted the prism as the refractive part 30 was shown. However, for example, as shown in FIG. 9, a Fresnel lens in which a plurality of saw-like grooves 35 are formed on each inclined surface can be adopted as the refracting portion 30.

  The refraction angle of the prism can be adjusted by appropriately setting the inclination angle of the entire prism. Therefore, when a prism is employed as the refracting portion 30, a thickness sufficient to adjust the inclination angle (refraction angle) must be secured in advance. On the other hand, the refraction angle of the Fresnel lens can be adjusted by appropriately setting the inclination angle of the groove 35. Therefore, when a Fresnel lens is used as the refracting portion 30, it is not necessary to secure a thickness sufficient to adjust the refraction angle in advance. As described above, when the Fresnel lens is employed as the refracting portion 30, the thickness of the refracting portion 30 can be reduced as compared with the case where a prism is employed as the refracting portion 30. Therefore, the physique of the mobile photosensor device 100 can be reduced. FIG. 9 is a cross-sectional view showing a modification of the refracting portion.

  In this embodiment, the connector part 60 is in a fitting relationship with a wire harness (not shown) that is electrically connected to the ECU of the vehicle, and the wire harness is mechanically connected to the optical sensor device 100 for a moving body, and An example of a configuration that performs the function of electrical connection is shown. However, when the end portion of the wire harness is a coil antenna that transmits and receives radio waves, a coil antenna can be adopted as the connector portion 60 as shown in FIG. 10, for example. The coil antenna functions to generate electric power by transmitting and receiving radio waves and receiving radio waves. According to this, transmission / reception of signals between the moving body photosensor device 100 and the wire harness and power feeding of the moving body photosensor device 100 can be performed in a non-contact manner. FIG. 10 is a plan view showing the deformability of the connector portion.

  In the present embodiment, the incident surface 30a of the refracting portion 30 is inclined so as to be separated from the windshield X from the circular edge portion 30c toward the vertex 30d, and connects the edge portion 30c and the vertex 30d. The example divided | segmented into the three inclined surfaces 31-33 through one division line was shown. However, the incident surface 30a of the refracting part 30 is inclined so as to approach the windshield X from the vertex 30d toward the edge 30c, and through three partition lines connecting the edge 30c and the vertex 30d, The structure divided | segmented into the three inclined surfaces 31-33 is also employable. Needless to say, even in the case of the above-described modification, the number of incident surfaces 30a to be divided is not limited to the above example.

  In this embodiment, the edge part 30c showed the example which is circular shape. However, the shape of the edge portion 30c is not limited to the above example, and for example, a polygonal shape such as a triangular shape or a quadrangular shape may be employed.

(Second Embodiment)
Next, 2nd Embodiment of this invention is described based on FIG.11 and FIG.12. FIG. 11 is a cross-sectional view along the vertical direction showing a schematic configuration of the moving body photosensor device according to the second embodiment, and corresponds to FIG. 1 shown in the first embodiment. FIG. 12 is a plan view showing a schematic configuration of the moving body photosensor device according to the second embodiment, and corresponds to FIG. 3 shown in the first embodiment. In FIG. 12, the wiring 14 and the adjustment unit 37 are omitted for convenience.

  Since the mobile photosensor device 100 according to the second embodiment is often in common with that according to the first embodiment, the detailed description of the common parts will be omitted below, and different parts will be described mainly. In addition, the same code | symbol shall be provided to the element same as the element shown in 1st Embodiment.

  The moving body photosensor device 100 according to the present embodiment is mainly characterized in that the moving body photosensor device 100 according to the first embodiment includes a light emitting unit 90.

  The light emitting unit 90 includes a light emitting element 91 that converts an electrical signal into an optical signal, and leads 92 that mechanically and electrically connect the light emitting element 91 and the wiring board 70. The light emitting element 91 is electrically connected to the processing unit 50 via the lead 92 and the wiring board 70, and a pulsed drive signal is input to the light emitting element 91 from the processing unit 50. . Thereby, pulsed light is emitted from the light emitting element 91. Note that the irradiation unit described in the claims includes the light emitting unit 90 and the processing unit 50 according to the present embodiment.

  In addition to the configuration shown in the first embodiment, the refraction unit 30 according to the present embodiment condenses the light emitted from the light emitting element 91, the light collecting unit 36, and the windshield X. And a gel-like adjusting portion 37 for adjusting the refractive index of the windshield X and the refracting portion 30.

  In addition to the functions shown in the first embodiment, the processing unit 50 according to the present embodiment has a function of inputting a pulsed electric signal to the light emitting element 91.

  Similar to the configuration shown in the first embodiment, the storage unit 80 according to this embodiment has a box shape and includes two openings 81 and 82. From one opening 81, the connection part with the wire harness in the connector part 60 is exposed to the outside, and from the other opening 82, the incident surface 30a of the refracting part 30 and the windshield X in the light collecting part 36 face each other. The surface is exposed to the outside via the adjustment unit 37. In the first embodiment, the bonding portion 83 is provided on the facing surface 80a of the storage unit 80. However, in the present embodiment, the bonding portion 83 is provided on the surface facing the windshield X in the wiring board 70. It has a configuration. Note that the flat portion described in the claims corresponds to the surface of the wiring board 70 facing the windshield X.

  Next, feature points of the moving body photosensor device 100 according to the present embodiment will be described. As described above, the windshield X is irradiated with pulsed light from the light emitting element 91. The pulsed light emitted from the light emitting element 91 is emitted radially from the light emitting element 91. The radially irradiated pulsed light is incident on the windshield X of the vehicle. Depending on the incident angle, some light is transmitted through the windshield X, and some light is reflected by the windshield X. A part of the reflected pulsed light enters the light receiving elements 11 to 13. As described above, since the pulsed light is irradiated radially from the irradiating unit, the area of the light reflected by the windshield X and incident on the light receiving element in the windshield X has a certain width. Become. Hereinafter, the function and effect of the moving body photosensor device 100 according to the present embodiment will be described using such a region as a reflection region.

  When raindrops are not attached to the reflection region, all of the pulsed light incident on the reflection region is reflected by the windshield X, and the reflected pulsed light is incident on each of the light receiving elements 11 to 13. In such a case, the amount of pulsed light incident on each of the light receiving elements 11 to 13 is maximized.

  Unlike the case described above, when raindrops are attached to a part of the reflective area, the pulsed light incident on the area where the raindrops are attached is formed of glass. Since the refractive index of the windshield X and the refractive index of the raindrop are close to each other, the windshield X is transmitted to the outside through the windshield X and the raindrop. Of course, of the pulsed light incident on the reflection region, the pulsed light incident on the region where no raindrops are attached is reflected by the windshield X, and the reflected pulsed light is received by the light receiving elements 11-11. 13 respectively. Therefore, when raindrops are attached to a part of the reflection region, the incident amount of pulsed light incident on the light receiving elements 11 to 13 is reduced as compared with the case where no raindrops are attached to the reflection region. Thus, since the incident amount of the pulsed light incident on each of the light receiving elements 11 to 13 varies depending on the presence or absence of raindrops, the variation in the output signal of each of the light receiving elements 11 to 13 due to the pulsed light is discriminated. Thus, it can be determined whether or not raindrops are attached to the reflection region.

  In addition, the fluctuation | variation of each output signal of the light receiving elements 11-13 by pulsed light can be discriminate | determined by differentiating the output signal of the light emitting element 91. FIG. The light from the light emitting element 91 is pulsed, and sunlight, street lights, etc. are continuous light. Therefore, by differentiating the output signal of the light emitting element 91, it is possible to remove continuous light components such as sunlight and street lamps and extract only pulsed light components. It can be determined whether or not raindrops are attached to the reflection region by increasing or decreasing the amplitude of the extracted pulsed light component. That is, it can be determined whether or not it is raining.

  Of course, when the amount of raindrops adhering to the reflection region increases, the incident amount of pulsed light incident on each of the light receiving elements 11 to 13 decreases. Therefore, the amount of raindrops adhering to the reflection region can be determined by determining the degree of reduction of the output signals of the light receiving elements 11 to 13 by the pulsed light. Since rain falls on the windshield X at random, it is expected that the ratio of raindrops adhering to the windshield X and the ratio of raindrops adhering to the reflection area are almost equal. Therefore, it is possible to determine the amount of raindrops adhering to the windshield X by determining the degree of reduction of the output signals of the light receiving elements 11 to 13 by pulsed light. That is, it is possible to determine the amount of rainfall.

  Thus, in the moving body photosensor device 100 according to the present embodiment, the light receiving elements 11 to 13 and the light emitting element 91 constitute a rain sensor, and the solar radiation sensor, the illuminance sensor, and the rain sensor are light receiving elements. It is a photosensor device for a moving body that shares 11 to 13. As a result, the moving body photosensor device 100 according to the present embodiment has a larger number of light receiving elements than the moving body photosensor device in which each of the solar radiation sensor, the illuminance sensor, and the rain sensor includes a light receiving element independently. Thus, the optical sensor device for a moving body is reduced.

(Third embodiment)
Next, a third embodiment of the present invention will be described with reference to FIGS. FIG. 13 is a cross-sectional view along the vertical direction showing a schematic configuration of the moving body photosensor device according to the third embodiment, and corresponds to FIG. 1 shown in the first embodiment. FIG. 14 is a plan view showing a schematic configuration of the moving body photosensor device according to the third embodiment, and corresponds to FIG. 3 shown in the first embodiment. In FIG. 14, the wiring 14 is omitted for convenience.

  Since the mobile photosensor device according to the third embodiment is often in common with the above-described embodiments, detailed description of the common parts will be omitted, and different parts will be described mainly. In addition, the same code | symbol shall be provided to the element same as the element shown to each above-mentioned embodiment.

  For example, in the first embodiment, the configuration in which the light receiving ranges of the light receiving elements 11 to 13 are limited by the refraction unit 30 is shown. On the other hand, the present embodiment is characterized in that the light receiving range of each of the light receiving elements 11 to 13 is limited by the mounting portion 40 without the refracting portion 30.

  As shown in FIGS. 13 and 14, the mounting surface 40a of the mounting portion 40 is inclined so as to be separated from the windshield X from the circular edge portion 40c toward the apex 40d, and the edge portion 40c. It is divided into three inclined surfaces 41 to 43 through three partition lines connecting the vertex 40d. In other words, when the mounting surface 40a is expressed in other words, the mounting surface 40a corresponds to a side surface of a cone formed by a straight line extending radially from the vertex 40d to a virtual bottom surface having the edge 40c as a circumference, It can be said that the side surface is divided into three by the lane markings described above. In the present embodiment, the first light receiving element 11 is mounted on the first inclined surface 41, the second light receiving element 12 is mounted on the second inclined surface 42, and the third light receiving element 13 is mounted on the third inclined surface 33. Yes.

  The three inclined surfaces 41 to 43 described above have different solid angles. Therefore, the projection planes of the three inclined surfaces 41 to 43 projected on the plane perpendicular to the arbitrary solid angle excluding the solid angle perpendicular to the virtual plane including the edge portion 40c must always have a magnitude relationship. Has come to occur.

  In the present embodiment, the inclination of the first inclined surface 41 is such that the area projected on the first vertical surface of the first inclined surface 41 is larger than the area projected on the first vertical surface of the other inclined surfaces 42 and 43. The inclination of the second inclined surface 42 is set so that the area projected on the second vertical surface of the second inclined surface 42 is larger than the area projected on the second vertical surface of the other inclined surfaces 43 and 41. The area projected on the third vertical surface of the other inclined surfaces 41 and 42 is determined by the area of the third inclined surface 43 being projected onto the third vertical surface perpendicular to the upper right direction on the third inclined surface 43. It is determined to be larger than. Thereby, more light along the front direction enters the first inclined surface 41 than the other inclined surfaces 42 and 43, and light along the upper left direction enters the second inclined surface 42 with the other inclined surfaces 43 and 43. More than 41 are incident, and light along the upper right direction is incident on the third inclined surface 43 more than the other inclined surfaces 41 and 42. Thereby, more light along the front direction is incident on the first light receiving element 11 than the second light receiving element 12 and the third light receiving element 13 by the first inclined surface 41, and in the upper left direction by the second inclined surface 42. More light is incident on the second light receiving element 12 than the third light receiving element 13 and the first light receiving element 11, and light along the upper right direction is incident on the first light receiving element 11 and the second light receiving light by the third inclined surface 43. More than the element 12, the light is incident on the third light receiving element 13. In other words, the first inclined surface 41 limits the light receiving range of the first light receiving element 11 to the forward direction, the second inclined surface 42 limits the light receiving range of the second light receiving element 12 to the upper left direction, and the third By the inclined surface 43, the light receiving range of the third light receiving element 13 is limited to the upper right direction.

  As described above, in the mobile photosensor device 100 according to the present embodiment, similarly to the mobile photosensor device 100 shown in the first embodiment, the light receiving range of the first light receiving element 11 is limited to the forward direction. The light receiving range of the second light receiving element 12 is limited to the upper left direction, and the light receiving range of the third light receiving element 13 is limited to the upper right direction. Therefore, the same effect as the effect shown with the 1st child form can be obtained.

  In the present embodiment, the mounting surface 40a is divided into three inclined surfaces 41 to 43, the first light receiving element 11 is mounted on the first inclined surface 41, the second light receiving element 12 is mounted on the second inclined surface 42, An example in which the third light receiving element 13 is mounted on the third inclined surface 43 is shown. However, the number of inclined surfaces and the number of light receiving elements are not limited to the above example. For example, as shown in FIG. 15, a configuration in which the mounting surface 40 a is divided into four inclined surfaces 41 to 44 can be adopted. In this case, the fourth light receiving element 16 is mounted on the fourth inclined surface 44, and the light receiving range of the fourth light receiving element 16 is mainly limited to the direction of the elevation angle of 90 ° and the horizontal angle of 0 ° by the fourth inclined surface 44. ing. FIG. 15 is a plan view showing a modification of the moving body photosensor device according to the third embodiment. In FIG. 15, the wiring 14 is omitted for convenience.

  In the present embodiment, an example in which one light receiving element is mounted on one inclined surface of the mounting portion 40 has been described. However, a configuration in which a plurality of light receiving elements are mounted on one inclined surface of the mounting portion 40 may be employed.

  In the present embodiment, the mounting surface 40a of the mounting portion 40 is inclined so as to be separated from the windshield X from the edge portion 40c toward the vertex 40d, and three division lines connecting the edge portion 40c and the vertex 40d. The example divided | segmented into the three inclined surfaces 41-43 via was shown. However, an inclination is formed so that the mounting surface 40a of the mounting portion 40 approaches the windshield X from the vertex 40d toward the edge 40c, and through three partition lines connecting the edge 40c and the vertex 40d, The structure divided | segmented into the three inclined surfaces 41-43 is also employable. Needless to say, even in the case of the above modification, the number of the mounting surface 40a to be divided is not limited to the above example.

  In this embodiment, the edge part 40c showed the example which is circular shape. However, the shape of the edge portion 40c is not limited to the above example, and for example, a polygonal shape such as a triangular shape or a quadrangular shape may be employed.

  In addition, the structure which has the light emission part 90 shown in 2nd Embodiment can also be employ | adopted for the optical sensor apparatus 100 for moving bodies which concerns on this embodiment. In this case, the same effect as the effect shown in the second embodiment can be obtained.

  The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.

  In 1st Embodiment-3rd Embodiment, the example with which the optical sensor apparatus 100 for moving bodies was mounted | worn with the windshield X was shown. However, for example, the moving body optical sensor device 100 may be installed in a vehicle rearview mirror so that light enters the light receiving unit 10 through the windshield X. In this case, the bonding portion 83 is provided on the back surface of the facing surface 80 a on the outer surface of the storage portion 80.

DESCRIPTION OF SYMBOLS 10 ... Light receiving part 11-13 ... 1st light receiving element-3rd light receiving element 30 ... Refraction part 31-33 ... 1st inclined surface-3rd inclined surface 40 ... Mounting part 41- 43: first to third inclined surfaces 50: processing unit 90: light emitting unit 91: light emitting element 100: photosensor device for moving body

Claims (10)

At least three light receiving elements;
A movable body photosensor device having a refracting portion that refracts light, disposed above the light receiving element,
The incident surface on which the light in the refracting portion is incident is inclined so as to approach the light receiving element from the edge toward the vertex, and the incident surface has a plurality of sections connecting the edge and the vertex. Divided into at least three inclined planes via a line ,
The entire light receiving surface of at least one light receiving element is opposed to each inclined surface,
As the inclined surface, in a state of being installed on a moving body,
A first inclined surface in which an area projected on a first vertical surface facing in a forward direction that is a traveling direction of the moving body is larger than an area projected on a first vertical surface in the other inclined surfaces;
A second inclined surface in which the area projected on the second vertical surface facing the upper left direction of the moving body is larger than the area projected on the second vertical surface in the other inclined surfaces;
A third inclined surface having an area projected on a third vertical surface facing the upper right direction of the movable body is larger than an area projected on the third vertical surface in the other inclined surfaces; An optical sensor device for a moving body. At least three light receiving elements;
A movable body photosensor device having a refracting portion that refracts light, disposed above the light receiving element,
An incident surface on which light in the refracting portion is incident is divided into at least three inclined surfaces;
The entire light receiving surface of at least one light receiving element is opposed to each inclined surface,
As the inclined surface, in a state of being installed on a moving body,
A first inclined surface in which an area projected on a first vertical surface facing in a forward direction that is a traveling direction of the moving body is larger than an area projected on a first vertical surface in the other inclined surfaces;
A second inclined surface in which the area projected on the second vertical surface facing the upper left direction of the moving body is larger than the area projected on the second vertical surface in the other inclined surfaces;
The area projected on a third vertical plane facing the upper right direction of the moving body, viewed contains a third inclined surface greater than the area projected on a third vertical plane in the other of the inclined surface,
An irradiation unit for irradiating the windshield of the moving body with pulsed light;
The light receiving element, characterized the be that moving body optical sensor device that receives pulsed light reflected by the windshield. The refraction unit, mobile object optical sensor device according to claim 1 or claim 2, characterized in that a prism. The refractive elements are each the inclined surface, serrated grooves mobile object optical sensor device according to claim 1 or claim 2, wherein the Fresnel lens der Rukoto which are plurally formed. The light receiving element is formed on the same plane of a semiconductor substrate,
The refraction part is formed of a resin having transparency,
The semiconductor substrate is mounted on a lead frame,
5. The optical sensor device for a moving body according to claim 1, wherein the lead frame and the semiconductor substrate are integrally molded by the resin forming the refracting portion. 6. . At least three light receiving elements;
A moving body photosensor device having a mounting portion on which the light receiving element is mounted,
The mounting surface on which the light receiving element is mounted in the mounting portion is divided into at least three inclined surfaces,
At least one of the entire light receiving elements is mounted on one of the inclined surfaces,
As the inclined surface, in a state of being installed on a moving body,
A first inclined surface in which an area projected on a first vertical surface facing in a forward direction that is a traveling direction of the moving body is larger than an area projected on a first vertical surface in the other inclined surfaces;
A second inclined surface in which the area projected on the second vertical surface facing the upper left direction of the moving body is larger than the area projected on the second vertical surface in the other inclined surfaces;
An area projected on a third vertical surface facing the upper right direction of the moving body, and a third inclined surface larger than an area projected on the third vertical surface in the other inclined surfaces;
An irradiation unit for irradiating the windshield of the moving body with pulsed light;
The light receiving element, characterized the be that moving body optical sensor device that receives pulsed light reflected by the windshield. A processing unit for processing an output signal of the light receiving element;
A connector part for electrically connecting the processing part and an external device,
The mobile optical sensor device according to claim 1, wherein the connector includes an antenna that transmits and receives radio waves and generates electric power by receiving radio waves. The surface facing the windshield of the moving body has a flat portion that is flat,
8. The moving body photosensor device according to claim 1, wherein an adhesive portion is provided on a surface of the flat portion facing the windshield.   The movement according to claim 1, wherein the amount of solar radiation, the solar elevation angle, and the solar azimuth angle are calculated based on an output signal of a light receiving element that has received light along at least three directions. Body photosensor device.   The illuminance in the forward direction of the moving body and the illuminance above the moving body are calculated based on an output signal of the light receiving element that has received light along at least two directions. The optical sensor device for moving bodies according to the item.

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