JP6299471B2 - Blind spot assist device - Google Patents

Description

  The present invention relates to a blind spot assisting device that projects an image of a blind spot area obstructed by an obstacle such as a front pillar in a vehicle.

  2. Description of the Related Art Conventionally, for example, a device disclosed in Patent Document 1 is known as a visual device that displays a blind spot caused by an obstacle such as a front pillar in a vehicle. The visual recognition device includes a first mirror that reflects the front of the vehicle and a second mirror that reflects light incident on the first mirror toward the driver, and an image that the driver can see through the direct visual recognition area that sandwiches the front pillar of the vehicle. The first mirror and / or the second mirror can be adjusted so that the images reflected on the second mirror are continuous.

JP 2006-231998 A

  However, in the visual recognition device according to Patent Document 1, it is necessary to adjust the positional relationship between the first and second mirrors so as not to obstruct the second mirror and the landscape when viewed from the driver. There was a problem that it was complicated. In addition, when the blind spot is reflected on the second mirror, there is a problem that outside light is reflected by the second mirror in addition to the light indicating the image of the blind spot area and enters the eyes of the driver, thereby impairing visibility.

  The present invention has been made in view of the above problems, and can more easily project an image of a blind spot area continuously with an image directly viewed by a viewer, and improve visibility. An object of the present invention is to provide a blind spot assisting device capable of achieving the above.

In order to achieve the above object, a blind spot assisting device according to the present invention is a blind spot assisting device that displays an image of a blind spot area blocked by an obstacle,
Arranged so that a semi-transmission mirror that receives light representing the image, is provided on the viewer side, reflects a part of the light, and transmits a part of the light, and a mirror that reflects the light to the semi-transmission mirror face each other. A pair of mirrors,
A first light-shielding portion that is provided on the viewer side of the semi-transmissive mirror and blocks light incident on the semi-transmissive mirror at a predetermined angle from the viewer side;
A second light-shielding portion that is provided at an incident-side end portion of the semi-transmissive mirror and shields light incident on the mirror at a predetermined angle without passing through the semi-transmissive mirror from the viewer side. It is characterized by.

  According to the present invention, it is possible to more easily display the image of the blind spot area continuously with the image directly viewed by the viewer, and to improve the visibility.

It is a figure which shows the general view of the driver's seat vicinity of the vehicle by which the blind spot auxiliary device which concerns on embodiment of this invention is arrange | positioned. It is a top view which shows the general view of a blind spot auxiliary device same as the above. It is a perspective view which shows a blind spot auxiliary device same as the above. It is a figure which shows a blind spot auxiliary | assistance apparatus same as the above. It is a figure which shows a blind spot auxiliary | assistance apparatus same as the above.

  A blind spot assisting apparatus according to an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a view showing an overview of the vicinity of a driver's seat of a vehicle 1 in which a blind spot assisting device 100 according to the present embodiment is arranged. As shown in FIG. 1, the vehicle 1 includes a steering 10, a windshield glass 20, side glasses 30 and 40, and front pillars 50 and 60. Reference numerals 21 and 22 denote light-shielding black ceramic (black ceramic) portions that are printed on the periphery of the windshield glass 20.

  In the vehicle 1, a viewer (mainly a driver) directly sees the scenery in the area where the windshield glass 20 (excluding the black ceramic portion 21) and the side glasses 30 and 40 are arranged, while the front pillar 50, In the area where 60 and the black sera parts 21 and 22 are arranged, the front pillars 50 and 60 and the black sera parts 21 and 22 block the visual field of the viewer, resulting in a blind spot area where the landscape cannot be seen directly. That is, the front pillars 50 and 60 and the black ceramic portions 21 and 22 correspond to obstacles in the present invention.

Next, the configuration of the blind spot assisting device 100 according to the present embodiment will be described based on FIGS. 2 is a plan view showing an overview of the blind spot assisting device 100, and FIG. 3 is a perspective view showing the blind spot assisting device 100. As shown in FIG.
As shown in FIGS. 1 and 2, the blind spot assisting device 100 is disposed via a holder member (not shown) on the front pillar 50 on the right side (driver side) when viewed from the viewer side. The image of the blind spot area blocked by 21 is projected. The blind spot assisting device 100 is disposed so as to face the front pillar 50 and the black ceramic portion 21 when viewed from the viewer.

  As shown in FIGS. 2 and 3, the blind spot assisting device 100 includes a pair of parallel plane mirrors (a pair of mirrors) 110 and a light shielding member 120 having a plurality of louvers (first light shielding portions) 121 to 126. Prepare.

  The pair of parallel plane mirrors 110 are arranged such that a semi-transmission plane mirror (semi-transmission mirror) 111 that reflects a part of incident light and transmits a part thereof, and a plane mirror (mirror) 112 face each other in parallel. It is constituted by being done. The transflective flat mirror 111 and the flat mirror 112 are fixed in a parallel positional relationship by being arranged on a holder member (not shown). It should be noted that the pair of mirrors of the present invention need not be arranged completely in parallel as long as they are arranged so as to face each other, and may be curved mirrors instead of plane mirrors.

  The transflective flat mirror 111 is disposed on the viewer side, and by depositing a metal such as aluminum on the surface of a base material made of a translucent resin material such as polyethylene terephthalate, polycarbonate, polyethylene, acrylic, etc. A reflectance adjustment layer is formed so as to have reflectance. The reflectance (transmittance) is adjusted depending on the thickness and type of the reflectance adjusting layer. The light quantity ratio between the transmitted light and the reflected light in the transflective flat mirror 111 of this embodiment is transmitted light: reflected light = 1: 9. The transflective flat mirror 111 may be formed by coating the surface of a base material with a dielectric multilayer film. The transflective flat mirror 111 has a base 111a facing the flat mirror 112 and an extending portion 111b extending from the base 111a. The transflective flat mirror 111 and the flat mirror 112 are stepped in the horizontal direction. Are arranged as follows.

  The plane mirror 112 is arranged so that the plane (reflection surface) thereof is parallel to the plane (semi-transmission reflection surface) of the semi-transmission plane mirror 111. For example, the substrate made of the above-described translucent resin material is used. It is a flat aluminum vapor deposition mirror formed by vapor-depositing a metal such as aluminum on the surface.

  The semi-transmissive flat mirror 111 and the flat mirror 112 have their respective planes (semi-transmissive reflective surface and reflective surface) perpendicular to the traveling direction of light L (indicated by arrows in FIG. 3) in the pair of parallel flat mirrors 110. It is formed in a substantially wedge shape so that the width in the direction gradually decreases in the traveling direction of the light L in the pair of parallel flat mirrors 110. This is to reduce the size and weight by removing unnecessary portions that are out of the visual field range of the viewer. Further, the transflective flat mirror 111 and the flat mirror 112 are similar in plane shape to each other (including a case where they are substantially similar), and the light traveling direction L in the pair of parallel flat mirrors 110 of the flat mirror 112 is the same. The width in the vertical direction is formed to be larger than the width in the vertical direction with respect to the traveling direction of the light L in the pair of parallel flat mirrors 110 of the semi-transmissive flat mirror 111. When the blind spot assisting device 100 is viewed from obliquely below or obliquely above, a light shielding wall (not shown) (for example, comprising a part of the holder member) that shields light between the semi-transmissive planar mirror 111 and the planar mirror 112 in the vertical direction. This is to suppress the reflection. Further, the incident side end (incident side side) E10 of the transflective flat mirror 111 and the incident side end (incident side side) E11 of the flat mirror 112 are along the glass surface of the windshield glass 20. Is inclined. This is because it can be placed close to the glass surface of the windshield glass 20.

  The light shielding member 120 is a non-translucent member provided on the viewer-side plane of the transflective flat mirror 111, and is made of, for example, a black synthetic resin material. The light shielding member 120 is provided with a plurality of louvers 121 to 126 along a viewer-side plane of the semi-transmissive flat mirror 111 on a frame 127 corresponding to the outer shape of the semi-transmissive flat mirror 111. The louvers 121 to 126 are non-light-transmitting plate-like parts made of the same material as the light shielding member 120. In FIG. 2, the frame portion 127 is omitted for easy understanding of the drawing. In addition, the louvers 121 to 126 are disposed at a predetermined angle with respect to the viewer-side plane of the semi-transmissive flat mirror 111 so that the tip portions thereof face the viewer. The operation of the louvers 121 to 126 will be described in detail later.

  Next, the operation of the pair of parallel flat mirrors 110 will be described with reference to FIG. FIG. 2 shows a state in which the viewer is seated on the driver's seat, and 2 shows the viewer's viewpoint (eye point).

In FIG. 2, a blind spot area D that is blocked by a front pillar 50 (not shown, but also including the black ceramic portion 21) is generated in the front view of the viewer (viewpoint 2). Accordingly, the object M present in the blind spot area D cannot be directly viewed from the viewpoint 2.
On the other hand, the light L from the object M is incident on the pair of parallel plane mirrors 110 and is repeatedly reflected between the pair of parallel plane mirrors 110 while a part of the light L is emitted from the pair of parallel plane mirrors 110 ( The light passes through the semi-transmissive flat mirror 111). The light incident on the pair of parallel plane mirrors 110 and repeatedly reflected between the pair of parallel plane mirrors 110 is light having an inclination with respect to the parallel plane of the pair of parallel plane mirrors 110. Part of the light L emitted from the pair of parallel flat mirrors 110 reaches the viewpoint 2. Therefore, the image of the object M reflected on the plane mirror 112 can be viewed through the transflective plane mirror 111 continuously with the scenery that can be directly viewed from the viewpoint 2. In addition, in a small area on the back side of the front pillar 50 (the part indicated by hatching) in the blind spot area D, light from this area cannot enter the pair of parallel plane mirrors 110, and the image is displayed as a pair of parallel plane mirrors. 110, the image of the blind spot area D can be projected by the pair of parallel plane mirrors 110 in almost all other areas.
Note that when the image of the blind spot area D is projected by the pair of parallel plane mirrors 110, the viewer places the blind spot assisting device 100 at an arbitrary height of the front pillar 50 (a height suitable for the viewpoint 2) and a pair of parallel planes. The angle of the pair of parallel plane mirrors 110 is adjusted so that the image of the blind spot area D is reflected on the mirror 110, that is, the light L from the blind spot area D reaches the viewpoint 2. Since the positional relationship between the transflective flat mirror 111 and the flat mirror 112 is fixed in parallel with each other, the pair of parallel flat mirrors 110 can be arranged at the same time by a single arranging operation, and the pair of parallel mirrors 110 can be arranged by a single adjusting operation. The angles of the parallel plane mirrors 110 can be adjusted simultaneously.

  By the way, since the light L is repeatedly reflected between the pair of parallel plane mirrors 110, when the light L is incident n times on the semi-transmissive plane mirror 111, n light L indicating an image of the object M is one parallel plane. The light is emitted from the mirror 110. That is, light L indicating images of n objects M is emitted from the pair of parallel flat mirrors 110 along the horizontal direction of the viewpoint 2. Therefore, the viewer can view the image of the object M in a wide range in the left-right direction. Note that the luminance of the light L emitted from the pair of parallel plane mirrors 110 decreases as the number of reflections by the transflective plane mirror 111 increases.

  Next, the operation of the louvers 121 to 126 will be described with reference to FIG. 4 is a view of the blind spot assisting device 100 as viewed from the upper front side. In FIG. 4, the frame portion 127 of the light shielding member 120 is omitted in order to make the drawing easier to see.

  In addition to the light L from the blind spot area D, external light also enters the pair of parallel flat mirrors 110 from the viewer (viewpoint 2) side. Of the external light incident on the pair of parallel plane mirrors 110 from the viewer side, as shown in FIG. 4, the semitransparent plane is inclined particularly toward the incident side of the light L with respect to the normal P of the plane of the semitransparent plane mirror 111. A part of the light incident on the mirror 111 (hereinafter referred to as the first stray light SL1) is reflected toward the viewpoint 2 by the semi-transmissive flat mirror 111, or a part of the light is transmitted through the semi-transmissive flat mirror 111 and is planar. It is reflected by the mirror 112 and is emitted again from the semi-transmissive flat mirror 111 toward the viewpoint 2, which becomes a factor of reducing the visibility of the image of the object M reflected on the flat mirror 112. In contrast, the blind spot assisting device 100 provides high visibility by blocking the first stray light SL1 incident on the semi-transmissive flat mirror 111 by providing louvers 121 to 126 on the viewer-side plane of the semi-transmissive flat mirror 111. Can be secured. Note that the length and number of the louvers 121 to 126 serve to block the first stray light SL1 that can be reflected toward the viewpoint 2 by the transflective flat mirror 111, and do not excessively block the view from the viewpoint 2. As appropriate. That is, the longer the length of the louvers 121 to 126, the more the first stray light SL1 can be blocked by one louver, but the louvers themselves may block the view from the viewpoint 2. On the other hand, the length of each louver can be reduced by providing a plurality of louvers 121-126. In this embodiment, the six louvers 121 to 126 fulfill the function of blocking the first stray light SL1. Although it is desirable that all of the first stray light SL1 is blocked by the louvers 121 to 126, the effect of improving the visibility can be obtained even when part of the first stray light SL1 is blocked.

  Of the louvers 121 to 126 of the light shielding member 120, the louver 121 positioned closest to the incident side of the semi-transmissive mirror 111 has one end (an end portion farther from the viewpoint 2) at the incident side end of the semi-transmissive mirror 111. Extending from E10 to the plane mirror 112 side, the semi-transparent plane mirror 111 is formed to include a light-shielding base 121a on the viewer side and a light-shielding extended part (second light-shielding part) 121b on the plane mirror 112 side. That is, the light shielding extension part 121 b is formed integrally with the louver 121.

  For example, when the extending portion 111b of the semi-transmissive flat mirror 111 is shortened due to a design reason such that there is not enough space around the blind spot assisting device 100, particularly between the windshield glass 20, a pair of viewers from the viewer side. Of the external light incident on the parallel plane mirror 110, as shown in FIG. 4, light incident on the plane mirror 112 at an incident angle greater than or equal to a predetermined angle without passing through the semi-transparent mirror 111 (hereinafter referred to as the second light). Stray light SL <b> 2) is reflected toward the viewpoint 2 by the plane mirror 112, and becomes a factor of reducing the visibility of the image of the object M reflected on the plane mirror 112. On the other hand, the blind spot assisting device 100 provides high visibility by blocking the second stray light SL2 incident on the plane mirror 112 by providing the extended light shielding portion 121b at the incident side end E10 of the transflective plane mirror 111. Can be secured. Specifically, the extended light-shielding part 121b is incident on the incident side end E11 of the plane mirror 112 from the viewer's viewpoint 2 from the incident side end E10 of the transflective flat mirror 111, and at the incident side end E11. The optical path R1 reflected on the viewer side is provided up to a position where it is blocked. Thus, the second stray light SL2 that is reflected by the plane mirror 112 and reaches the viewpoint 2 can be blocked without increasing the size of the blind spot assisting device 100 by extending the transflective plane mirror 111 or increasing the number of louvers. . Note that light from the direction of the blind spot region D is incident on the inner side surface (the plane on the plane mirror 112 side) of the light shielding extension portion 121b, and may be stray light when reflected toward the plane mirror 112. The inner surface of the part 121b is preferably subjected to antireflection treatment such as black coating. In the present embodiment, the light shielding extension 121b is provided so as to be linear with the light shielding base 121a. However, the light shielding extension 121b may be refracted from the light shielding base 121a. For example, the light shielding extension 121 b may be extended perpendicularly to the plane of the semi-transmissive flat mirror 111.

  Next, the arrangement positions and angles of the louvers 121 to 126 will be described with reference to FIGS. FIG. 5 is a view of the blind spot assisting device 100 as viewed from the upper front side. In FIG. 5, the frame portion 127 of the light shielding member 120 is omitted in order to make the drawing easier to see.

When the planes of the pair of parallel flat mirrors 110 are viewed from the viewpoint 2, each of the louvers 121 to 126 is viewed as a vertical line in the front field of view including the blind spot area D. Similarly, the incident-side end E11 of the flat mirror 112 is visually recognized as a vertical line in the forward field of view when viewed from the viewpoint 2. Further, the incident side end E11 of the plane mirror 112 is reflected by the semi-transmissive plane mirror 111, and the images E12 to E14 of the plurality of incident side ends E11 reflected on the plane mirror 112 are similarly viewed from the viewpoint 2 in the forward field of view. It is visually recognized as a vertical line. If all of these lines are viewed separately, the visibility of the blind spot assisting device 100 may be impaired. On the other hand, in the present embodiment, of the louvers 121 to 126, the louvers 123 to 126 are viewed from the viewpoint 2 that is defined as the reference viewpoint position, and the incident side end E11 or the incident side end E11 of the plane mirror 112 is viewed. Even if it is arranged so as to overlap with the images E12 to E14 and the louvers 121 to 126 are provided by reducing the vertical lines in the front field of view, good visibility is ensured.
Specifically, as shown in FIG. 3, when viewed from the plane side of the pair of parallel plane mirrors 110, the louvers 123 to 126 are parallel to the incident side end (incident side side) E11 of the plane mirror 112. Provide an angle.
Then, as shown in FIG. 5, the louver 123 is arranged on a straight line S1 connecting the viewpoint 2 and the incident side end E11 so as to overlap the incident side end E11 when viewed from the viewpoint 2. The straight line S1 reflects the light L in the order of the region (first time) in which the background is viewed through the semi-transmissive flat mirror 111 as viewed from the viewpoint 2, the semi-transmissive flat mirror 111, and the flat mirror 112 in this order, and again (2 The second) is a boundary with a region where an image incident on the semi-transmissive flat mirror 111 is visually recognized.
Further, the louver 124 is perpendicular to the plane of the pair of parallel plane mirrors 110 from the viewpoint 2 and the incident side end E11 so as to overlap the image E12 of the incident side end E11 reflected on the plane mirror 112 when viewed from the viewpoint 2. It arrange | positions on the straight line S2 which connects the point E21 which moved the space | interval A of the semi-transmission plane mirror 111 and the plane mirror 112 to twice in the direction. In the straight line S2, the light L is reflected in the order of the image incident on the semi-transmissive flat mirror 111 for the second time, the semi-transmissive flat mirror 111, and the flat mirror 112 in this order, and is incident on the semi-transmissive flat mirror 111 again (third time). This is because the image E12 of the incident side end E11 of the flat mirror 112 is visually recognized on the straight line S2, which is a boundary with the region where the image is visually recognized.
In addition, the louver 125 is spaced from the viewpoint 2 and the point E21 in a direction perpendicular to the plane of the pair of parallel plane mirrors 110 so as to overlap the image E13 of the incident side end E11 reflected on the plane mirror 112 when viewed from the viewpoint 2. A is arranged on a straight line S3 connecting point E31 that has moved two more times. In the straight line S3, the light L is reflected in the order of the image which is incident on the semi-transmissive flat mirror 111 for the third time, and further in the order of the semi-transmissive flat mirror 111 and the flat mirror 112, and is incident on the semi-transmissive flat mirror 111 again (fourth time). This is because the image E13 of the incident side end E11 of the plane mirror 112 is visually recognized on the straight line S3.
In addition, the louver 126 is spaced from the viewpoint 2 and the point E31 in the direction perpendicular to the plane of the pair of parallel plane mirrors 110 so as to overlap the image E14 of the incident side end E11 reflected on the plane mirror 112 when viewed from the viewpoint 2. A is arranged on a straight line S4 connecting point E41 that has been moved twice more. The straight line S4 is reflected in the order of the image which is incident on the semi-transmissive flat mirror 111 for the fourth time, and further the semi-transmissive flat mirror 111 and the plane mirror 112 in this order, and the image which is incident on the semi-transmissive flat mirror 111 again (fifth time) is visually recognized. This is because the image E13 of the incident side end E11 of the plane mirror 112 is visually recognized on the straight line S4.

Similarly, when the planes of the pair of parallel plane mirrors 110 are viewed from the viewpoint 2, the incident side end E10 of the semi-transmissive plane mirror 111 is also viewed as a vertical line in the forward field of view as viewed from the viewpoint 2. In contrast, in the present embodiment, among the louvers 121 to 126, the louver 121 is arranged so as to overlap with the semi-transmissive flat mirror 111 when viewed from the viewpoint 2 defined as the reference viewpoint position, and the vertical direction in the front field of view. Even if it is the structure which provides the louvers 121-126 by reducing this line, favorable visibility is ensured.
Specifically, as shown in FIG. 3, first, the louver 121 is provided so as to overlap the incident side end (incident side side) E <b> 10 of the semi-transmissive flat mirror 111.
Then, as shown in FIG. 5, the louver 121 is arranged on a straight line S0 connecting the viewpoint 2 and the incident side end E10 so as to overlap the incident side end E10 when viewed from the viewpoint 2. The straight line S <b> 1 is a boundary between a region where the background is visually recognized directly from the viewpoint 2 and a region where the background is visually recognized via the semi-transmissive flat mirror 111.

  Of the louvers 121 to 126, the louver 122 is provided between the louver 121 and the louver 123 in order to reduce the length of the louver 121. The angle θ2 of the louver 122 with respect to the plane of the semi-transmissive flat mirror 111 is the same as the angle θ1 of the louver 121 with respect to the plane of the semi-transmissive flat mirror 111 (θ1 = θ2).

  As described above, when the louvers 121 to 126 are arranged, the angles θ1 to θ6 of the louvers 121 to 126 with respect to the plane of the semi-transmissive flat mirror 111 are changed from the incident side to the outgoing side (the light L of the pair of parallel flat mirrors 110). It is provided so as to increase stepwise (toward the traveling direction) (θ1 = θ2 <θ3 <θ4 <θ5 <θ6).

The blind spot assisting device 100 configured as described above is a blind spot assisting device 100 that displays an image of the blind spot area D that is blocked by an obstacle in the vehicle 1.
The light L representing the image is incident, the semi-transparent flat mirror 111 provided on the viewer side that reflects part of the light L and transmits part of the light L, and the flat mirror 112 that reflects the light L to the semi-transmissive flat mirror 111. A pair of parallel flat mirrors 110 arranged so as to face each other;
Louvers 121 to 126 that are provided on the viewer side of the semi-transmissive flat mirror 111 and block the first stray light SL1 that enters the semi-transmissive flat mirror 111 from the viewer side at a predetermined angle;
A light-shielding extending portion that is provided at the incident-side end E10 of the semi-transmissive flat mirror 111 and blocks the second stray light SL2 that is incident on the flat mirror 112 at a predetermined angle without passing through the semi-transmissive flat mirror 111 from the viewer side. 121b.
Accordingly, since the semi-transmissive flat mirror 111 is used as one of the pair of parallel flat mirrors 110, the viewer can visually recognize the image and landscape of the object M reflected on the flat mirror 112 through the semi-transmissive flat mirror 111. The degree of freedom of the arrangement position of the parallel plane mirror 110 is increased, and the image of the blind spot area D can be projected more easily and continuously with the image (landscape) that the viewer can directly visually recognize. In addition, since a camera that captures the blind spot area D and a display that displays the captured image are unnecessary, the cost is lower than when these are used. Further, the louvers 121 to 126 prevent the first stray light SL1 from entering the transflective flat mirror 111, and the light shielding extension 121b prevents the second stray light SL2 from entering the flat mirror 112. And visibility can be improved.

The light shielding extension 121b is formed integrally with the louver 121.
According to this, a 2nd light-shielding part can be provided easily.

  In addition, this invention is not limited by the said embodiment and drawing. It goes without saying that changes (including deletion of components) can be added to the embodiment and the drawings. The second light shielding part of the present invention may be formed separately from the first light shielding part. Further, for example, the louvers 121 to 126 may be arranged via a shaft portion so that the angles of the louvers 121 to 126 can be adjusted manually. In this case, if all the louvers 121 to 126 are inclined close to the plane of the semi-transmissive flat mirror 111 and the planes of the semi-transmissive flat mirror 111 are covered by the louvers 121 to 126, the louvers are partially half-used when not in use. It is possible to prevent dust and dirt from adhering to the transmission flat mirror 111, and to prevent scratches and damage. Further, the light shielding member 120 including the louvers 121 to 126 may be made of a flexible material such as silicone. According to this, the light shielding member 120 can be easily attached and detached, it is easy to remove the dirt from the semi-transmissive flat mirror 111 by removing the light shielding member 120, and there are variations in color and design, which the viewer likes. Convenience is also high when exchanging depending on the situation. Further, when a viewer or the like mistakenly contacts the blind spot assisting device 100, the function as a buffer member can be achieved. In this embodiment, the space between the pair of parallel plane mirrors 110 is hollow, but a solid structure is formed by filling a transparent resin material (translucent member) between the pair of parallel plane mirrors 110. It is good. Thereby, dust and dirt can be prevented from adhering to the inner surfaces of the pair of parallel flat mirrors 110.

  The blind spot assisting device 100 of the present embodiment is disposed on the right front pillar 50 as viewed from the driver's seat side of the vehicle 1, but a similar blind spot assisting device is also disposed on the left front pillar 60. Also good. Further, as an obstacle in the vehicle, it may be a blind spot assisting device that is arranged on a center pillar, a rear pillar, or the like in addition to the front pillar and displays an image of a blind spot area blocked by these.

Further, the present invention can be widely applied as a blind spot assisting device that projects an image of a blind spot area blocked by an obstacle in fields other than vehicles. For example, when the blind spot assisting device of the present invention is used in a house, a large area blind spot assisting device is attached to the ceiling and only the incident part is exposed to the outside from the wall or the like. Can also see the sunlight from the ceiling indoors. It is particularly suitable for densely populated houses and houses with circumstances where ordinary windows cannot be attached.
Also, for example, in a high-rise building such as a tourist facility, a blind spot auxiliary device with a large area is embedded under the floor of a high floor, and only the light incident part is exposed outdoors, so that the blind spot auxiliary device under the floor directly puts the scenery under the eyes You can feel and emphasize the height of the building. In order to obtain the same effect, conventionally, it was necessary to provide a space under the floor. However, the blind spot assisting device of the present invention is suitable because it can be easily arranged in an existing building.
In addition, as an example to be used for the wall surface, the blind spot assisting device of the present invention is arranged at the corner of the fence at an intersection where the fence is standing near the road and the line of sight is bad. Can quickly recognize the existence of, and contribute to the prevention of encounter accidents.
As described above, the blind spot assisting device of the present invention secures a space for a light incident portion in a blind spot area that is obstructed by an obstacle that has not been visible until now without requiring energy such as electric power. It can be seen as if the obstacles are seen through a wide range, and its use can be widely applied both indoors and outdoors, and it can obtain various effects such as health, safety or impression. .

  The present invention is suitable for a blind spot assisting device that projects an image of a blind spot area obstructed by an obstacle.

1 Vehicle 2 Viewpoint 100 Blind Spot Auxiliary Device 110 Pair of Parallel Plane Mirrors
111 Transflective flat mirror (semi-transmissive mirror)
111a base 111b extension 112 flat mirror (mirror)
120 light shielding member 121-126 louver (first light shielding part)
121a light shielding base 121b light shielding extended part (second light shielding part)
127 frame

Claims (2)

A blind spot assisting device that projects an image of a blind spot area obstructed by an obstacle,
Arranged so that a semi-transmission mirror that receives light representing the image, is provided on the viewer side, reflects a part of the light, and transmits a part of the light, and a mirror that reflects the light to the semi-transmission mirror face each other. A pair of mirrors,
A first light-shielding portion that is provided on the viewer side of the semi-transmissive mirror and blocks light incident on the semi-transmissive mirror at a predetermined angle from the viewer side;
A second light-shielding portion that is provided at an incident-side end portion of the semi-transmissive mirror and shields light incident on the mirror at a predetermined angle without passing through the semi-transmissive mirror from the viewer side. A blind spot assist device characterized by.   2. The blind spot assisting device according to claim 1, wherein the second light shielding part is formed integrally with the first light shielding part.

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