JPWO2021161829A5 - - Google Patents
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- JPWO2021161829A5 JPWO2021161829A5 JP2022500325A JP2022500325A JPWO2021161829A5 JP WO2021161829 A5 JPWO2021161829 A5 JP WO2021161829A5 JP 2022500325 A JP2022500325 A JP 2022500325A JP 2022500325 A JP2022500325 A JP 2022500325A JP WO2021161829 A5 JPWO2021161829 A5 JP WO2021161829A5
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- 239000011521 glass Substances 0.000 claims 44
- 230000003287 optical effect Effects 0.000 claims 20
- 239000005340 laminated glass Substances 0.000 claims 8
- 230000005540 biological transmission Effects 0.000 claims 2
- 230000002093 peripheral effect Effects 0.000 claims 2
- 230000010287 polarization Effects 0.000 claims 2
Claims (21)
地面と水平かつ前記移動体が前進する時の進行方向と直交する方向をＸ軸、地面と水平かつ前記移動体が前進する時の進行方向をＹ軸、及び地面と垂直な方向をＺ軸とし、
前記視認者の視点と前記投影光の発光点と前記投影光が反射する点である反射点とを有する面を入射面とした時、
前記ヘッドアップディスプレイ装置は、
前記投影光を照射する映像部と、
前記映像部と前記投影部との間に設けられ、前記投影光に含まれる特定方向に振動する光を透過させる偏光部と、
前記偏光部を透過した投影光が投影される前記投影部と、を備え、
前記投影部は、前記投影光の入射側である室内側から室外側へ、第二ガラス板、位相差フィルム、第一ガラス板の順になるように配置された合わせガラスであり、
前記視認者の正面である視認者正面領域と、前記Ｘ軸方向のいずれかの方向に沿って、前記視認者正面領域よりも遠くなる領域である視認者斜め前方領域とを有し、
前記投影光は、少なくとも前記視認者斜め前方領域に投影され、
前記視認者から前記投影部を見た時のＸ軸を０°、前記位相差フィルムに沿った面を投影面とした時、
前記位相差フィルムは、前記投影面において、Ｘ軸に対してθｒ傾いた光軸を有し、前記光軸により前記投影面に入射する前記投影光の振動方向を変えるものであり、
前記特定方向は、前記入射面と平行な方向であることを特徴とするヘッドアップディスプレイ装置。 A head-up display device that is mounted on a moving body and allows a viewer who is a passenger of the moving body to recognize a virtual image based on a reflected image of projection light on a projection unit,
The direction parallel to the ground and perpendicular to the direction of movement of the moving body when moving forward is the X axis, the direction parallel to the ground and the direction of movement of the moving body when moving forward is the Y axis, and the direction perpendicular to the ground is the Z axis. ,
When the plane of incidence has a viewpoint of the viewer, a light emitting point of the projection light, and a reflection point where the projection light is reflected,
The head-up display device includes:
an image section that irradiates the projection light;
a polarizing section that is provided between the image section and the projection section and transmits light vibrating in a specific direction included in the projection light;
the projection section on which the projection light transmitted through the polarization section is projected;
The projection unit is laminated glass arranged in the order of a second glass plate, a retardation film, and a first glass plate from the indoor side, which is the incident side of the projection light, to the outdoor side,
The viewer has a front area in front of the viewer, and a diagonally front area in front of the viewer, which is a region further away from the viewer front area along any direction of the X-axis direction.
The projection light is projected onto at least an area diagonally in front of the viewer,
When the X-axis when looking at the projection unit from the viewer is 0°, and the plane along the retardation film is the projection plane,
The retardation film has an optical axis tilted by θr with respect to the X axis on the projection plane, and changes the vibration direction of the projection light incident on the projection plane by the optical axis,
A head-up display device, wherein the specific direction is a direction parallel to the incident surface.
地面と水平かつ前記移動体が前進する時の進行方向と直交する方向をＸ軸、地面と水平かつ前記移動体が前進する時の進行方向をＹ軸、及び地面と垂直な方向をＺ軸とし、
前記視認者の視点と前記投影光の発光点と前記投影光が反射する点である反射点とを有する面を入射面とした時、
前記ヘッドアップディスプレイ装置は、
前記投影光を照射する映像部と、
前記映像部と前記投影部との間に設けられ、前記投影光に含まれる特定方向に振動する光を透過させる偏光部と、
前記偏光部を透過した投影光が投影される前記投影部と、を備え、
前記投影部は、前記投影光の入射側である室内側から室外側へ、第二ガラス板、位相差フィルム、第一ガラス板の順になるように配置された合わせガラスであり、
前記視認者の正面である視認者正面領域と、前記Ｘ軸方向のいずれかの方向に沿って、前記視認者正面領域よりも遠くなる領域である視認者斜め前方領域とを有し、
前記投影光は、少なくとも前記視認者斜め前方領域に投影され、
前記視認者から前記投影部を見た時のＸ軸を０°、前記位相差フィルムに沿った面を投影面とした時、
前記位相差フィルムは、前記投影面において、Ｘ軸に対してθｒ傾いた光軸を有し、前記投影面に入射する前記投影光の振動方向θαと前記光軸とがなす角度をｄθとした場合に、入射する前記投影光の振動方向を２ｄθ回転させるものであり、
前記振動方向θαは、前記投影面におけるＸ軸に対する前記入射面の角度をθｐとした場合に前記投影面において２θｒ－θｐの方向であることを特徴とするヘッドアップディスプレイ装置。 A head-up display device that is mounted on a moving body and allows a viewer who is a passenger of the moving body to recognize a virtual image based on a reflected image of projection light on a projection unit,
The direction parallel to the ground and perpendicular to the direction of movement of the moving body when moving forward is the X axis, the direction parallel to the ground and the direction of movement of the moving body when moving forward is the Y axis, and the direction perpendicular to the ground is the Z axis. ,
When the plane of incidence has a viewpoint of the viewer, a light emitting point of the projection light, and a reflection point where the projection light is reflected,
The head-up display device includes:
an image section that irradiates the projection light;
a polarizing section that is provided between the image section and the projection section and transmits light vibrating in a specific direction included in the projection light;
the projection section on which the projection light transmitted through the polarization section is projected;
The projection unit is laminated glass arranged in the order of a second glass plate, a retardation film, and a first glass plate from the indoor side, which is the incident side of the projection light, to the outdoor side,
The viewer has a front area in front of the viewer, and a diagonally front area in front of the viewer, which is a region further away from the viewer front area along any direction of the X-axis direction.
The projection light is projected onto at least an area diagonally in front of the viewer,
When the X-axis when looking at the projection unit from the viewer is 0°, and the plane along the retardation film is the projection plane,
The retardation film has an optical axis inclined by θr with respect to the X-axis on the projection plane, and dθ is an angle formed between the vibration direction θα of the projection light incident on the projection plane and the optical axis. In this case, the vibration direction of the incident projection light is rotated by 2dθ,
The head-up display device is characterized in that the vibration direction θα is a direction of 2θr−θp on the projection plane, where θp is an angle of the incidence plane with respect to the X-axis on the projection plane.
各視認者のそれぞれに対して、前記映像部と前記投影部との間に前記偏光部が設けられ、視認者毎に設けられた入射面である各入射面を有し、
それぞれの前記偏光部は、前記各入射面に対応した前記特定方向に振動する投影光を透過させる、請求項１～５のいずれかに記載のヘッドアップディスプレイ装置。 The viewer is multiple people,
For each viewer, the polarizing section is provided between the image section and the projection section, and has each entrance surface that is an entrance surface provided for each viewer,
6. The head-up display device according to claim 1, wherein each of the polarizing sections transmits the projection light vibrating in the specific direction corresponding to each of the incident surfaces.
それぞれの前記透過軸の向きが異なる請求項６に記載のヘッドアップディスプレイ装置。 The polarizing section has a transmission axis in which the vibration direction of the transmitted projection light is the specific direction,
The head-up display device according to claim 6, wherein the respective transmission axes have different directions.
前記投影位置の変更に伴う入射面の変更に対応して、前記偏光部が可動であり、前記偏光部を透過させる光の振動方向を変えることができる請求項１～８のいずれかに記載のヘッドアップディスプレイ装置。 In the projection unit, a projection position on which the projection light is projected can be changed;
9. The polarizer according to claim 1, wherein the polarizer is movable in response to a change in the plane of incidence accompanying a change in the projection position, and the vibration direction of the light transmitted through the polarizer can be changed. Head-up display device.
地面と水平かつ前記移動体が前進する時の進行方向と直交する方向をＸ軸、地面と水平かつ前記移動体が前進する時の進行方向をＹ軸、及び地面と垂直な方向をＺ軸とし、
前記視認者の視点と前記投影光の発光点と前記投影光が反射する点である反射点とを有する面を入射面とした時、
前記ヘッドアップディスプレイシステムは、
前記投影光を照射する映像部と、
前記映像部と前記投影部との間に設けられ、前記投影光に含まれる特定方向に振動する光を透過させる偏光部と、
前記投影光が投影される前記投影部と、を備え、
前記投影部は、前記投影光の入射側である室内側から室外側へ、第二ガラス板、位相差フィルム、第一ガラス板の順になるように配置された合わせガラスであり、
前記視認者の正面である視認者正面領域と、前記Ｘ軸方向のいずれかの方向に沿って、前記視認者正面領域よりも遠くなる領域である視認者斜め前方領域とを有し、
前記投影光は、少なくとも前記視認者斜め前方領域に投影され、
前記視認者から前記投影部を見た時のＸ軸を０°、前記位相差フィルムに沿った面を投影面とした時、
前記位相差フィルムは、前記投影面において、Ｘ軸に対してθｒ傾いた光軸を有し、前記光軸により前記投影面に入射する前記投影光の振動方向を変えるものであり、
前記偏光部が可動であり、前記偏光部を透過させる光の振動方向を変えることにより、以下の（Ａ）及び（Ｂ）を切り替え可能であることを特徴とする。
（Ａ）前記第二ガラス板へ入射する光の振動方向を、前記入射面と平行な方向とする。
（Ｂ）前記位相差フィルムが、前記投影面に入射する前記投影光の振動方向θαと前記光軸とがなす角度をｄθとした場合に、入射する前記投影光の振動方向を２ｄθ回転させるものであるとして、前記第二ガラス板を透過した光の振動方向を、前記投影面におけるＸ軸に対する前記入射面の角度をθｐとした場合に前記投影面において２θｒ－θｐの方向となるようにする。 A head-up display system that is mounted on a moving body and allows a viewer who is a passenger of the moving body to view a virtual image based on a reflected image of projection light on a projection unit,
The direction parallel to the ground and perpendicular to the direction of movement of the moving body when moving forward is the X axis, the direction parallel to the ground and the direction of movement of the moving body when moving forward is the Y axis, and the direction perpendicular to the ground is the Z axis. ,
When the plane of incidence has a viewpoint of the viewer, a light emitting point of the projection light, and a reflection point where the projection light is reflected,
The head-up display system includes:
an image section that irradiates the projection light;
a polarizing section that is provided between the image section and the projection section and transmits light vibrating in a specific direction included in the projection light;
the projection unit onto which the projection light is projected;
The projection unit is laminated glass arranged in the order of a second glass plate, a retardation film, and a first glass plate from the indoor side, which is the incident side of the projection light, to the outdoor side,
The viewer has a front area in front of the viewer, and a diagonally front area in front of the viewer, which is a region further away from the viewer front area along any direction of the X-axis direction.
The projection light is projected onto at least an area diagonally in front of the viewer,
When the X-axis when looking at the projection unit from the viewer is 0°, and the plane along the retardation film is the projection plane,
The retardation film has an optical axis tilted by θr with respect to the X axis on the projection plane, and changes the vibration direction of the projection light incident on the projection plane by the optical axis,
The polarizing section is movable, and the following (A) and (B) can be switched by changing the vibration direction of the light transmitted through the polarizing section.
(A) The vibration direction of the light incident on the second glass plate is parallel to the incident surface.
(B) The retardation film rotates the vibration direction of the incident projection light by 2dθ, where dθ is the angle between the vibration direction θα of the projection light incident on the projection surface and the optical axis. Assuming that, the vibration direction of the light transmitted through the second glass plate is set in the direction of 2θr−θp on the projection plane, where θp is the angle of the incidence plane with respect to the X axis on the projection plane. .
前記投影位置の変更に伴う入射面の変更に対応して、前記偏光部が可動であり、前記偏光部を透過する投影光の振動方向を変えることができる請求項１０に記載のヘッドアップディスプレイシステム。 In the projection unit, a projection position on which the projection light is projected can be changed;
The head-up display system according to claim 10, wherein the polarizing section is movable and can change the vibration direction of the projection light that passes through the polarizing section in response to a change in the incident surface due to a change in the projection position. .
地面と水平かつ前記移動体が前進する時の進行方向と直交する方向をＸ軸、地面と水平かつ前記移動体が前進する時の進行方向をＹ軸、及び地面と垂直な方向をＺ軸とし、
前記視認者の視点と前記投影光の発光点と前記投影光が反射する点である反射点とを有する面を入射面とした時、
前記ヘッドアップディスプレイ装置は、
振動方向がＸ軸方向である前記投影光を照射する映像部と、
前記投影光が投影される投影部と、を備え、
前記投影部は、前記視認者よりも、前記移動体が前進する時の進行方向に配置され、前記投影光の入射側に配置される第二ガラス板と、前記投影光の出射側に配置される第一ガラス板と、前記第二ガラス板と、前記第一ガラス板との間に配置される、位相差フィルムとを、備える合わせガラスからなり、
前記第一ガラス板は、室外側に露出される第一主面と、前記第一主面の反対側の第二主面とを備え、
前記第二ガラス板は、室内側に露出される第四主面と、前記第四主面の反対側の第三主面とを備え、
前記投影光を、前記位相差フィルムへ入射させることによって、前記投影光の振動方向を前記入射面に対して平行方向へ変換することができ、
前記投影部は、前記視認者の正面である視認者正面領域と、Ｘ軸方向のいずれかの方向に沿って、前記視認者正面領域に対して遠くなる領域である視認者斜め前方領域を有し、
前記視認者が前記視認者正面領域に形成された反射像を見る場合に、前記視認者正面領域に配置される前記位相差フィルムは、前記第四主面との平行面において前記位相差フィルムの光軸がＸ軸に対して４５°±５°であり、
前記視認者が前記視認者斜め前方領域に形成された反射像を見る場合に、前記視認者斜め前方領域に配置される前記位相差フィルムは、前記第四主面との平行面において前記位相差フィルムの光軸がＸ軸に対して４５°±５°からずれる方向に傾いており、
前記虚像は、前記第二ガラス板の前記第四主面に形成された反射像に基づき、
前記視認者正面領域及び前記視認者斜め前方領域のいずれにおいても、前記第一ガラス板の前記第一主面から出射される光は、主として前記入射面に対して平行方向に振動する前記投影光である、ことを特徴とする、ヘッドアップディスプレイ装置。 A head-up display device that is mounted on a moving body and allows a viewer who is a passenger of the moving body to view a virtual image based on a reflected image of projection light on a projection unit,
The direction parallel to the ground and perpendicular to the direction of movement of the moving body when moving forward is the X axis, the direction parallel to the ground and the direction of movement of the moving body when moving forward is the Y axis, and the direction perpendicular to the ground is the Z axis. ,
When the plane of incidence has a viewpoint of the viewer, a light emitting point of the projection light, and a reflection point where the projection light is reflected,
The head-up display device includes:
an image unit that irradiates the projection light with a vibration direction in the X-axis direction;
a projection section on which the projection light is projected;
The projection unit is arranged in a direction in which the moving body moves forward relative to the viewer, and includes a second glass plate arranged on an incident side of the projection light, and a second glass plate arranged on an exit side of the projection light. a laminated glass comprising a first glass plate, a retardation film disposed between the second glass plate and the first glass plate,
The first glass plate includes a first main surface exposed to the outdoor side and a second main surface opposite to the first main surface,
The second glass plate includes a fourth main surface exposed to the indoor side, and a third main surface opposite to the fourth main surface,
By making the projection light incident on the retardation film, the vibration direction of the projection light can be converted to a direction parallel to the incident surface,
The projection unit has a viewer-front area that is in front of the viewer, and a viewer-oblique front area that is a region that is farther away from the viewer-front area along any direction of the X-axis direction. death,
When the viewer views the reflected image formed in the viewer's front area, the retardation film disposed in the viewer's front area has a surface parallel to the fourth principal surface of the retardation film. The optical axis is 45°±5° with respect to the X axis,
When the viewer views a reflected image formed in the region diagonally in front of the viewer, the retardation film disposed in the region diagonally in front of the viewer has the retardation in a plane parallel to the fourth principal surface. The optical axis of the film is tilted in a direction that deviates from 45°±5° with respect to the X axis,
The virtual image is based on a reflected image formed on the fourth principal surface of the second glass plate,
In both the region in front of the viewer and the region diagonally in front of the viewer, the light emitted from the first main surface of the first glass plate is the projection light mainly vibrating in a direction parallel to the incident surface. A head-up display device characterized by:
地面と水平かつ前記移動体が前進する時の進行方向と直交する方向をＸ軸、地面と水平かつ前記移動体が前進する時の進行方向をＹ軸、及び地面と垂直な方向をＺ軸とし、
前記視認者の視点と前記投影光の発光点と前記投影光が反射する点である反射点とを有する面を入射面とした時、
前記ヘッドアップディスプレイ装置は、
振動方向がＹＺ平面に平行な方向である前記投影光を照射する映像部と、
前記投影光が投影される投影部と、を備え、
前記投影部は、前記視認者よりも、前記移動体が前進する時の進行方向に配置され、前記投影光の入射側に配置される第二ガラス板と、前記投影光の出射側に配置される第一ガラス板と、前記第二ガラス板と、前記第一ガラス板との間に配置される、位相差フィルムとを、備える合わせガラスからなり、
前記第一ガラス板は、室外側に露出される第一主面と、前記第一主面の反対側の第二主面とを備え、
前記第二ガラス板は、室内側に露出される第四主面と、前記第四主面の反対側の第三主面とを備え、
前記投影光を、前記位相差フィルムへ入射させることによって、前記投影光の振動方向を前記入射面に対して垂直方向へ変換することができ、
前記投影部は、前記視認者の正面である視認者正面領域と、Ｘ軸方向のいずれかの方向に沿って、前記視認者正面領域に対して遠くなる領域である視認者斜め前方領域を有し、
前記視認者が前記視認者正面領域に形成された反射像を見る場合に、前記視認者正面領域に配置される前記位相差フィルムは、前記第四主面との平行面において前記位相差フィルムの光軸がＸ軸に対して４５°±５°であり、
前記視認者が前記視認者斜め前方領域に形成された反射像を見る場合に、前記視認者斜め前方領域に配置される前記位相差フィルムは、前記第四主面との平行面において前記位相差フィルムの光軸がＸ軸に対して４５°±５°からずれる方向に傾いており、
前記虚像は、前記第一ガラス板の前記第一主面に形成された反射像に基づき、
前記視認者正面領域及び前記視認者斜め前方領域のいずれにおいても、前記第一ガラス板の前記第一主面で反射される光は、主として前記入射面に対して垂直方向に振動する前記投影光である、ことを特徴とする、ヘッドアップディスプレイ装置。 A head-up display device that is mounted on a moving body and allows a viewer who is a passenger of the moving body to view a virtual image based on a reflected image of projection light on a projection unit,
The direction parallel to the ground and perpendicular to the direction of movement of the moving body when moving forward is the X axis, the direction parallel to the ground and the direction of movement of the moving body when moving forward is the Y axis, and the direction perpendicular to the ground is the Z axis. ,
When the plane of incidence has a viewpoint of the viewer, a light emitting point of the projection light, and a reflection point where the projection light is reflected,
The head-up display device includes:
an image unit that irradiates the projection light whose vibration direction is parallel to the YZ plane;
a projection section on which the projection light is projected;
The projection unit is arranged in a direction in which the moving body moves forward relative to the viewer, and includes a second glass plate arranged on an incident side of the projection light, and a second glass plate arranged on an exit side of the projection light. a laminated glass comprising a first glass plate, a retardation film disposed between the second glass plate and the first glass plate,
The first glass plate includes a first main surface exposed to the outdoor side and a second main surface opposite to the first main surface,
The second glass plate includes a fourth main surface exposed to the indoor side, and a third main surface opposite to the fourth main surface,
By making the projection light incident on the retardation film, the vibration direction of the projection light can be converted to a direction perpendicular to the incident surface,
The projection unit has a viewer-front area that is in front of the viewer, and a viewer-oblique front area that is a region that is farther away from the viewer-front area along any direction of the X-axis direction. death,
When the viewer views the reflected image formed in the viewer's front area, the retardation film disposed in the viewer's front area has a surface parallel to the fourth principal surface of the retardation film. The optical axis is 45°±5° with respect to the X axis,
When the viewer views the reflected image formed in the region diagonally in front of the viewer, the retardation film disposed in the region diagonally in front of the viewer has the retardation film in a plane parallel to the fourth principal surface. The optical axis of the film is tilted in a direction that deviates from 45°±5° with respect to the X axis,
The virtual image is based on a reflected image formed on the first main surface of the first glass plate,
In both the area in front of the viewer and the area diagonally in front of the viewer, the light reflected by the first main surface of the first glass plate is the projection light that mainly vibrates in a direction perpendicular to the incident surface. A head-up display device characterized by:
前記縦軸に沿った複数の地点において、前記位相差フィルムの光軸と前記横軸とがなす角は一定であり、
前記横軸方向に沿って、前記位相差フィルムの光軸と前記横軸とがなす角が一定傾向で変化することを特徴とする位相差フィルム。 An integral retardation film having a vertical axis in the vertical direction and a horizontal axis in the horizontal direction,
At a plurality of points along the vertical axis, the angle between the optical axis of the retardation film and the horizontal axis is constant,
A retardation film characterized in that an angle formed between an optical axis of the retardation film and the horizontal axis changes with a constant tendency along the horizontal axis direction.
前記位相差フィルムが、請求項１７～１９のいずれかに記載の位相差フィルムであることを特徴とする車両用合わせガラス。 A laminated glass for a vehicle, comprising a first glass plate, a second glass plate, and a retardation film disposed between the first glass plate and the second glass plate,
A laminated glass for a vehicle, wherein the retardation film is the retardation film according to any one of claims 17 to 19.
地面と水平かつ前記移動体が前進する時の進行方向と直交する方向をＸ軸、地面と水平かつ前記移動体が前進する時の進行方向をＹ軸、及び地面と垂直な方向をＺ軸とし、
前記視認者の視点と前記投影光の発光点と前記投影光が反射する点である反射点とを有する面を入射面とした時、
前記ヘッドアップディスプレイシステムは、
前記投影光を照射する映像部と、
前記投影光が投影される投影部と、を備え、
前記投影部は、前記視認者よりも、前記移動体が前進する時の進行方向に配置され、前記投影光の入射側に配置される第二ガラス板と、前記投影光の出射側に配置される第一ガラス板と、前記第二ガラス板と、前記第一ガラス板との間に配置される、位相差フィルムとを、備える合わせガラスからなり、
前記第一ガラス板は、室外側に露出される第一主面と、前記第一主面の反対側の第二主面とを備え、
前記第二ガラス板は、室内側に露出される第四主面と、前記第四主面の反対側の第三主面とを備え、
前記投影光を、前記位相差フィルムへ入射させることによって、前記投影光の振動方向を前記入射面に対して平行方向又は垂直方向へ変換することができ、
前記投影部は、前記視認者の正面である視認者正面領域と、Ｘ軸方向のいずれかの方向に沿って、前記視認者正面領域に対して遠くなる領域である視認者斜め前方領域を有し、
前記視認者が前記視認者正面領域に形成された反射像を見る場合に、前記視認者正面領域に配置される前記位相差フィルムは、前記第四主面との平行面において前記位相差フィルムの光軸がＸ軸に対して４５°±５°であり、
前記視認者が前記視認者斜め前方領域に形成された反射像を見る場合に、前記視認者斜め前方領域に配置される前記位相差フィルムは、前記第四主面との平行面において前記位相差フィルムの光軸がＸ軸に対して４５°±５°からずれる方向に傾いており、
前記映像部は、振動方向がＸ軸方向である第一の投影光、及び、振動方向がＹＺ平面に平行な方向である第二の投影光を切り替えて照射することができ、
前記視認者が偏光板を介さずに虚像を視認する場合は、前記映像部から前記第一の投影光を照射し、前記虚像は、前記第二ガラス板の前記第四主面に形成された反射像に基づき、前記視認者正面領域及び前記視認者斜め前方領域のいずれにおいても、前記第一ガラス板の前記第一主面から出射される光は、主として前記入射面に対して平行方向に振動する投影光であり、
前記視認者が偏光板を介して虚像を視認する場合は、前記映像部から前記第二の投影光を照射し、前記虚像は、前記第一ガラス板の前記第一主面に形成された反射像に基づき、前記視認者正面領域及び前記視認者斜め前方領域のいずれにおいても、前記第一ガラス板の前記第一主面で反射される光は、主として前記入射面に対して垂直方向に振動する投影光である、ことを特徴とする、ヘッドアップディスプレイシステム。 A head-up display system that is mounted on a moving body and allows a viewer who is a passenger of the moving body to view a virtual image based on a reflected image of projection light on a projection unit,
The direction parallel to the ground and perpendicular to the direction of movement of the moving body when moving forward is the X axis, the direction parallel to the ground and the direction of movement of the moving body when moving forward is the Y axis, and the direction perpendicular to the ground is the Z axis. ,
When the plane of incidence has a viewpoint of the viewer, a light emitting point of the projection light, and a reflection point where the projection light is reflected,
The head-up display system includes:
an image section that irradiates the projection light;
a projection section on which the projection light is projected;
The projection unit is arranged in a direction in which the moving body moves forward relative to the viewer, and includes a second glass plate arranged on an incident side of the projection light, and a second glass plate arranged on an exit side of the projection light. a laminated glass comprising a first glass plate, a retardation film disposed between the second glass plate and the first glass plate,
The first glass plate includes a first main surface exposed to the outdoor side and a second main surface opposite to the first main surface,
The second glass plate includes a fourth main surface exposed to the indoor side, and a third main surface opposite to the fourth main surface,
By making the projection light incident on the retardation film, the vibration direction of the projection light can be converted to a direction parallel to or perpendicular to the incident surface,
The projection unit has a viewer-front area that is in front of the viewer, and a viewer-oblique front area that is a region that is farther away from the viewer-front area along any direction of the X-axis direction. death,
When the viewer views the reflected image formed in the viewer's front area, the retardation film disposed in the viewer's front area has a surface parallel to the fourth principal surface of the retardation film. The optical axis is 45°±5° with respect to the X axis,
When the viewer views a reflected image formed in the region diagonally in front of the viewer, the retardation film disposed in the region diagonally in front of the viewer has the retardation in a plane parallel to the fourth principal surface. The optical axis of the film is tilted in a direction that deviates from 45°±5° with respect to the X axis,
The image section can switch and irradiate a first projection light whose vibration direction is in the X-axis direction and a second projection light whose vibration direction is parallel to the YZ plane,
When the viewer views the virtual image without using a polarizing plate, the first projection light is irradiated from the image section, and the virtual image is formed on the fourth principal surface of the second glass plate. Based on the reflected image, in both the area in front of the viewer and the area diagonally in front of the viewer, the light emitted from the first main surface of the first glass plate is mainly parallel to the incident surface. It is a vibrating projection light,
When the viewer views a virtual image through a polarizing plate, the second projection light is irradiated from the image section, and the virtual image is generated by the reflection formed on the first principal surface of the first glass plate. Based on the image, in both the area in front of the viewer and the area diagonally in front of the viewer, the light reflected by the first principal surface of the first glass plate mainly vibrates in a direction perpendicular to the incident surface. A head-up display system characterized in that it is a projection light.
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| Application Number | Priority Date | Filing Date | Title |
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| JP2020022342 | 2020-02-13 | ||
| JP2020027920 | 2020-02-21 | ||
| JP2020140713 | 2020-08-24 | ||
| PCT/JP2021/003464 WO2021161829A1 (en) | 2020-02-13 | 2021-02-01 | Head-up display device, head-up display system, phase difference film, and laminated glass for vehicle |
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| Publication Number | Publication Date |
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| JPWO2021161829A1 JPWO2021161829A1 (en) | 2021-08-19 |
| JPWO2021161829A5 true JPWO2021161829A5 (en) | 2023-12-22 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH1195156A (en) * | 1997-06-30 | 1999-04-09 | Central Glass Co Ltd | Display device |
| JP5922459B2 (en) * | 2012-03-26 | 2016-05-24 | 株式会社有沢製作所 | Production method of retardation plate |
| DE102013206505B4 (en) * | 2013-04-12 | 2020-11-05 | Bayerische Motoren Werke Aktiengesellschaft | Translucent pane for displaying an image of a head-up display for polarized sunglasses, a head-up display arrangement and a vehicle with a head-up display arrangement |
| JP6179463B2 (en) * | 2014-05-28 | 2017-08-16 | 株式会社デンソー | Projection member and head-up display device |
| JP6114728B2 (en) * | 2014-09-29 | 2017-04-12 | 富士フイルム株式会社 | Projected image display member and projected image display system |
| JP2021152560A (en) * | 2018-06-22 | 2021-09-30 | セントラル硝子株式会社 | Head-up display device |
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2021
- 2021-02-01 JP JP2022500325A patent/JPWO2021161829A1/ja active Pending
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