Vehicle image projection system

Abstract

To provide a vehicle image projection system which enables an occupant to more intuitively recognize an air conditioning state of an air conditioner.SOLUTION: A vehicle image projection system 1 generally comprises at least one projector 2 having a pattern part 3 having at least one pattern corresponding to an air conditioning state of an air conditioner 95 of a vehicle 9 and at least one projection unit 4 which projects a projection image of the pattern onto a projection area in the vehicle 9. The vehicle image projection system 1 projects the projection image corresponding to the air conditioning state and thus enables an occupant to more intuitively recognize the air conditioning state of the air conditioner compared to a case where this structure is not adopted.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a vehicle image projection system. [Background technology]

[0002] As a conventional technology, there is known an air outlet structure for a vehicle air conditioner, which includes a first air outlet provided at the lower or upper edge of a protrusion that protrudes toward the rear of the vehicle at the front of the cabin and blows air toward the cabin, and a second air outlet provided on the protrusion further rearward of the vehicle than the first air outlet and changes the wind direction of the air flow blown out from the first air outlet by blowing air in a direction that intersects with the air flow blown out from the first air outlet (see, for example, Patent Document 1).

[0003] In this air outlet structure of a vehicle air conditioner, the air flow blown out from the second air outlet joins the air flow blown out from the first air outlet from the side, changing the direction of the air flow blown out from the first air outlet, eliminating the need to install a register at the front of the cabin to change the direction of the air, and resulting in an excellent design. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2015-020566 Summary of the Invention [Problem to be solved by the invention]

[0005] The air outlet structure of such conventional vehicle air conditioners makes its presence invisible to occupants, and since settings such as airflow direction are all concentrated on the control panel, it is difficult for occupants to intuitively understand the air conditioning status of the air conditioner.

[0006] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a vehicle image projection system that allows a passenger to easily and intuitively recognize the air conditioning state of an air conditioner. [Means for solving the problem]

[0007] One aspect of the present invention provides a vehicle image projection system including a pattern portion having at least one pattern corresponding to the air conditioning state of the vehicle's air conditioning unit, and at least one image projection device having at least one projection portion that projects a projected image of the pattern onto a projection area inside the vehicle. [Effects of the Invention]

[0008] According to the present invention, it becomes easier for a passenger to intuitively recognize the air conditioning state of the air conditioner. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1(a) is a diagram showing an example of the interior of a vehicle in which a vehicle image projection system according to the first embodiment is installed, and FIG. 1(b) is an example of a block diagram of the vehicle image projection system. [Figure 2] FIG. 2(a) is a front view showing an example of the projector according to the first embodiment, and FIG. 2(b) is an example of the handle. [Figure 3] FIG. 3(a) shows an example of the arrangement of the projectors according to the first embodiment, and FIG. 3(b) shows an example of the rear side of the display. [Figure 4] FIG. 4(a) is a diagram showing an example of a handle when the projector according to the first embodiment projects a moving projection image, and FIGS. 4(b) to 4(d) are diagrams showing an example of the projection image moving within the same projection area. [Figure 5] FIG. 5(a) is a diagram showing an example of a handle when the projector according to the first embodiment projects a moving projection image, and FIGS. 5(b) to 5(d) are diagrams showing an example in which the projection image moves while changing the projection area. [Figure 6] FIG. 6(a) is a diagram showing an example of the handle portion when the projector according to the first embodiment projects the airflow volume, and FIG. 6(b) is a diagram showing an example of the handle portion when the projector projects the set temperature. [Figure 7]FIG. 7(a) is a diagram showing an example of the arrangement of the projector according to the second embodiment, and FIGS. 7(b) and 7(c) are diagrams for explaining an example of the installation of the projector. DETAILED DESCRIPTION OF THE INVENTION

[0010] (Summary of the embodiment) The vehicle image projection system according to the embodiment is generally configured to include at least one image projection device having a pattern portion having at least one pattern corresponding to the air conditioning state of the vehicle's air conditioning unit, and at least one projection portion that projects a projection image of the pattern onto a projection area inside the vehicle.

[0011] This vehicle image projection system projects a pattern that indicates the air conditioning status of the air conditioner, making it easier for occupants to intuitively recognize the air conditioning status of the air conditioner compared to when this configuration is not adopted.

[0012] [First embodiment] (Overview of Vehicle Image Projection System 1) FIG. 1(a) is a diagram showing an example of the interior of a vehicle in which a vehicle image projection system according to a first embodiment is installed, and FIG. 1(b) is an example of a block diagram of the vehicle image projection system. FIG. 2(a) is a front view showing an example of a projector according to the first embodiment, and FIG. 2(b) is an example of a handle. FIG. 3(a) shows an example of the layout of the projector according to the first embodiment, and FIG. 3(b) is an example of the back side of the display. Note that in each diagram according to the embodiments described below, the ratios and shapes between figures may differ from the actual ratios and shapes. Also, in FIG. 1(b), arrows indicate the flow of main signals. Below, we will first explain the overview of the vehicle image projection system 1 and the projector 2 as a vehicle image projection device.

[0013] The vehicle image projection system 1 is generally configured to include a pattern unit 3 having at least one pattern corresponding to the air conditioning state of the air conditioning unit 95 of the vehicle 9, and at least one projector 2 having at least one projection unit 4 that projects a projection image of the pattern onto a projection area inside the vehicle 9.

[0014] For example, when projecting one air conditioning status, the vehicle image projection system 1 includes one pattern and one projection unit 4 for projecting the one pattern. When the projector 2 includes the pattern and the projection unit 4, the vehicle image projection system 1 includes one projector 2.

[0015] Furthermore, when projecting a plurality of air conditioning states, for example, the vehicle image projection system 1 is provided with a plurality of patterns and a plurality of projection units 4 for projecting the plurality of patterns. When the projector 2 has the plurality of patterns and the plurality of projection units 4, the vehicle image projection system 1 is provided with one projector 2. Furthermore, when the projector 2 is provided with only a portion of the plurality of patterns and the plurality of projection units 4, the vehicle image projection system 1 is provided with a plurality of projectors 2 that can project a plurality of air conditioning states.

[0016] As shown in FIG. 1(a), the vehicle image projection system 1 includes at least one projector 2 on the driver's seat 90 side of the vehicle 9 that projects a projection image 202 corresponding to the air conditioning status on the driver's seat 90 side onto a panel 93 on the driver's seat 90 side, and at least one projector 2 on the passenger's seat 91 side that projects a projection image 203 corresponding to the air conditioning status on the passenger's seat 91 side onto a panel 93 on the passenger's seat 91 side.

[0017] 1(a), 3(a) and 3(b), the vehicle image projection system 1 includes at least one projector 2 that is disposed on the back 51 side of the display surface 50 of the display 5 that is disposed in front of the driver's seat 90 and the passenger seat 91 of the vehicle 9, and projects a projection image from the back 51 side onto a projection area. As described above, the vehicle image projection system 1 of this embodiment is provided with two projectors 2, for example.

[0018] The projection area of ​​this projector 2 is a design surface 930 of a panel 93 arranged on the rear 51 side of the display 5. The projection area is a projection area 200 on the driver's seat 90 side and a projection area 201 on the passenger seat 91 side.

[0019] As shown in Figures 1(a) and 1(b), the projector 2 of this embodiment is generally configured to include a pattern unit 3 having multiple patterns corresponding to the air conditioning state of the air conditioning unit 95, multiple projection units 4 that project projection images corresponding to the multiple patterns onto a projection area, and a control unit 10 that controls the multiple projection units 4 based on a control signal S7 output from the air conditioning unit 95 to project projection images corresponding to the air conditioning state.

[0020] 1(a), the panel 93 on the driver's seat 90 side is, for example, a right panel 931 on the driver's seat 90 side of the design surface 930 of the panel 93. The panel 93 on the passenger's seat 91 side is, for example, a left panel 932 on the passenger's seat 91 side of the design surface 930 of the panel 93.

[0021] 1(a), the air conditioning device 95 has a long and narrow air outlet 901 in front of the driver's seat 90 of the vehicle 9, and a long and narrow air outlet 902 in front of the passenger seat 91. The air outlet 901 and the air outlet 902 do not have a mechanism for setting the air volume or air direction by operating fins or the like by the passenger, and are configured so that conditioned air 903 and conditioned air 904 adjusted to a set temperature are blown out in a set direction.

[0022] For example, the air conditioning device 95 outputs a control signal S7 that switches between the projection image 202 and the projection image 203 projected by the vehicle image projection system 1 according to the set air volume, air direction, set temperature, etc. The control unit 10 controls the projectors 2 on the driver's seat 90 side and the passenger's seat 91 side based on the control signal S7.

[0023] (Projector 2 configuration) In this embodiment, the projectors 2 on the driver's seat 90 side and the passenger's seat 91 side have, as an example, a plurality of patterns that indicate the airflow direction as the air conditioning status. As an example, the projectors 2 have the same configuration but are arranged on the display 5 with their orientations changed, and therefore will be described below as having the same configuration, but may be different.

[0024] As an example, the control unit 10 of this embodiment controls two projectors 2 collectively as shown in FIG. 1(b), but is not limited to this, and each projector 2 may have its own control unit.

[0025] 2(a), the housing 20 of the projector 2 is an elongated rectangle, and has through holes 21a to 21c on its front surface 21. The projection units 4 are arranged in the through holes 21a to 21c, respectively.

[0026] As shown in Figures 3(a) and 3(b), the display 5 is attached to a panel 93 via an attachment member 933. The two projectors 2 are attached to the back 51 of the display 5 with the through-holes 21a to 21c facing outward. The projectors 2 project the projection images 202 and 203 onto a design surface 930 on the back 51 side of the display 5. The projectors 2 may also project the projection images 202 and 203 onto a ceiling 96, a right pillar 97, a left pillar 98, or the like.

[0027] The location of the projector 2 is not limited to the display 5, but may be on the ceiling 96, right pillar 97, left pillar 98, or the like of the vehicle 9.

[0028] (Configuration of handle 3) 2(b), the pattern unit 3 has a plurality of patterns divided into regions. The control unit 10 controls the projection unit 4 in response to a control signal S7, and is configured to switch the pattern to be projected by switching the region onto which the projection light output from the projection unit 4 is irradiated.

[0029] As shown in FIG. 2(b), the handle portion 3 of this embodiment has a handle that indicates the airflow direction as an air conditioning state.

[0030] The pattern portion 3 on the driver's seat 90 side has, as an example, a transparent substrate 30 on which patterns 31 to 33 are formed. The pattern portion 3 on the passenger's seat 91 side has, as an example, a transparent substrate 30 on which patterns 34 to 36 are formed. These patterns 31 to 36 are formed by a light-transmitting region that transmits light and a light-blocking region that blocks light. As an example, the light-transmitting region and the light-blocking region are formed on a front surface 300 of the transparent substrate 30, as shown in FIG. 1(b). The front surface 300 of the transparent substrate 30 faces a projection lens unit 42, which will be described later, and the back surface 301 faces a condenser lens unit 41, which will be described later.

[0031] As shown in FIG. 2(b), the transparent substrate 30 on the driver's seat 90 side has a surface 300 divided into a first region 30a, a second region 30b, and a third region 30c. A pattern 31 is formed in the first region 30a. A pattern 32 is formed in the second region 30b. A pattern 33 is formed in the third region 30c. Patterns 31 to 33 are formed by dividing one transparent substrate 30 into three regions, but this is not limited to this, and a transparent substrate may be prepared for each pattern. Similarly to the driver's seat 90 side, the transparent substrate 30 on the passenger seat 91 side has patterns 34 to 36 divided into three regions.

[0032] Pattern 31 is a pattern in which the tip of the arrow points to the left on the paper surface of FIG. 2(b). This pattern 31 is projected by projection light 401 from the rear surface 301 of transparent substrate 30. Therefore, when pattern 31 is projected, as shown in FIG. 1(a), it is projected as a projection image 202 in which the wind direction is reversed from left to right. Note that pattern 34 on the passenger seat 91 side is, for example, the same pattern as pattern 31.

[0033] Pattern 32 is a pattern in which the tip of the arrow points to the right on the paper surface of FIG. 2(b). This pattern 32 is projected by projection light 402 from the rear surface 301 of transparent substrate 30. Therefore, when pattern 32 is projected, as shown in FIG. 1(a), it is projected as a projection image 202 in which the wind direction is reversed from right to left. Note that pattern 35 on the passenger seat 91 side is, for example, the same pattern as pattern 32.

[0034] Pattern 33 has an arrowhead on the right side pointing right and an arrowhead on the left side pointing left in the plane of FIG. 2(b). This pattern 33, like the other patterns, is projected by projection light 403 from the rear surface 301 of transparent substrate 30. Therefore, when pattern 33 is projected, it appears as a projection image 202 in which the wind direction is split to the left and right. This pattern 33 indicates that the wind direction is changing from right to left and from left to right, that is, a swinging motion is being performed. Note that pattern 36 on the passenger seat 91 side is, as an example, a pattern similar to pattern 33.

[0035] Since the projector 2 of this embodiment has a pattern that indicates the airflow direction that changes from left to right, right to left, and left and right as the air conditioning status, the same pattern may be placed on the driver's seat 90 and the passenger seat 91. Note that the pattern may be different on the driver's seat 90 side and the passenger seat 91 side.

[0036] As a modified example, the pattern portion 3 may be configured as a liquid crystal display, an organic EL (Electro-Luminescence) display, etc. In this case, the projector 2 displays and projects a pattern corresponding to the control signal S7 acquired from the air conditioner 95 on the liquid crystal display, the organic EL display, etc.

[0037] Other patterns FIG. 4(a) is a diagram showing an example of the handle when the projector according to the first embodiment projects a moving projection image, and FIGS. 4(b) to 4(d) are diagrams showing an example of the projection image moving within the same projection area. FIG. 5(a) is a diagram showing an example of the handle when the projector according to the first embodiment projects a moving projection image, and FIGS. 5(b) to 5(d) are diagrams showing an example of the projection image moving while changing the projection area. FIG. 6(a) is a diagram showing an example of the handle when the projector according to the first embodiment projects an airflow volume, and FIG. 6(b) is a diagram showing an example of the handle when projecting a set temperature. Below, a projection image 202 onto a projection area 200 on the driver's seat 90 side will be described as an example.

[0038] The control unit 10 controls the projection unit 4 to change the air conditioning status using multiple patterns or by changing the projection area in response to the control signal S7. Figures 4(a) to 4(d) show an example in which the air conditioning status change is shown using multiple patterns. Figures 5(a) to 5(d) show an example in which the air conditioning status change is shown by changing the projection area.

[0039] The handle portion 3 shown in FIG. 4(a) has handles 31 to 33, each of which has an arrow indicating the wind direction whose tip gradually changes position from right to left. As shown in FIGS. 4(a) and 4(b), handle 31 is formed in the first region 30a and is projected onto the projection region 200 of the right panel 931 as a projection image 202a. As shown in FIGS. 4(a) and 4(c), handle 32 is formed in the second region 30b and is projected onto the projection region 200 of the right panel 931 as a projection image 202b. As shown in FIGS. 4(a) and 4(d), handle 33 is formed in the third region 30c and is projected onto the projection region 200 of the right panel 931 as a projection image 202c.

[0040] As shown in Figures 4(b) to 4(d), the control unit 10 repeatedly projects the patterns 31, 32, and 33 in this order onto the same projection area 200 based on the control signal S7 obtained from the air conditioning device 95, thereby repeatedly moving the tip of the arrow from left to right and displaying an animation of the wind direction.

[0041] The control unit 10 also changes the speed at which patterns 31, 32, and 33 are switched based on a control signal S7 received from the air conditioner 95. That is, when the air volume is small, the speed at which patterns are switched is decreased. When the air volume is large, the speed at which patterns are switched is increased.

[0042] The passenger can recognize the airflow direction from left to right by the repeated movement of the projected image, and the airflow volume from the speed of the movement. In other words, the passenger can intuitively recognize the airflow direction and volume as the air conditioning status.

[0043] The handle portion 3 shown in FIG. 5(a) has identical handles 31 to 33, each with an arrow pointing to the left. As shown in FIGS. 5(a) and 5(b), handle 31 is formed in the first region 30a and projected as projected image 202a onto the projection region 200a of the right panel 931. As shown in FIGS. 5(a) and 5(c), handle 32 is formed in the second region 30b and projected as projected image 202b onto the projection region 200b of the right panel 931. As shown in FIGS. 5(a) and 5(d), handle 33 is formed in the third region 30c and projected as projected image 202c onto the projection region 200c of the right panel 931.

[0044] The projection areas 200a to 200c move from left to right as shown in FIGS. 5(b) to 5(d).

[0045] As shown in Figures 5(b) to 5(d), the control unit 10 repeatedly projects patterns 31, 32, and 33 onto the projection areas 200a to 200c in this order based on the control signal S7 obtained from the air conditioning device 95, thereby repeatedly moving the projection image 202 from left to right and displaying an animation of the wind direction.

[0046] The control unit 10 also changes the speed at which patterns 31, 32, and 33 are switched based on a control signal S7 received from the air conditioner 95. That is, when the air volume is small, the speed at which patterns are switched is decreased. When the air volume is large, the speed at which patterns are switched is increased.

[0047] The passenger can recognize the airflow direction from left to right by the repeated movement of the projected image, and the airflow volume from the speed of the movement. In other words, the passenger can intuitively recognize the airflow direction and volume as the air conditioning status.

[0048] The pattern portion 3 shown in Fig. 6(a) has patterns 31 to 35 that indicate the airflow volume as an air conditioning state. Patterns 31 to 35 are rectangular patterns of different heights, and the airflow volume increases as the height increases. The projected image 202 is a projected image that is an inverted version of patterns 31 to 35.

[0049] The control unit 10 projects a pattern corresponding to the air volume onto the projection area 200 based on a control signal S7 obtained from the air conditioner 95. The projection image 202 enables the occupant to recognize the air volume.

[0050] The pattern portion 3 shown in Fig. 6(b) has patterns 31 to 33 which indicate the set temperature as the air conditioning state. Patterns 31 to 35 are rectangular patterns that gradually increase in height from right to left, and the set temperature increases as the height increases. Note that the projected image 202 is a projected image inverted from patterns 31 to 33.

[0051] The control unit 10 projects a pattern corresponding to the set temperature onto the projection area 200 based on a control signal S7 obtained from the air conditioner 95. The projected image 202 allows the passenger to recognize the set temperature.

[0052] As a modified example, the air conditioning state may be, for example, the type and amount of aroma, the operating state of an air purifier, etc. The handle portion 3 has a handle corresponding to these air conditioning states.

[0053] (Configuration of projection unit 4) As shown in FIG. 1(b), the projector 2 on the driver's seat 90 side and the passenger's seat 91 side has a plurality of projection units 4. Each projection unit 4 has a light source unit 40, a condenser lens unit 41, and a projection lens unit 42. A projection unit 4 is provided for each of the handles 31 to 33 and the handles 34 to 36. Therefore, the projector 2 has three projection units 4.

[0054] The light source unit 40 of the projector 2 on the driver's seat 90 side has a light emitting element 40a that outputs projection light 401 for projecting the pattern 31, a light emitting element 40b that outputs projection light 402 for projecting the pattern 32, and a light emitting element 40c that outputs projection light 403 for projecting the pattern 33. These light emitting elements 40a to 40c are arranged in a straight line at equal intervals on a substrate 400.

[0055] As an example, the light emitting elements 40a to 40c are LED (Light Emission Diode) elements that output white projection light 401 to 403, but are not limited to this and may be LD (Laser Diode) elements, etc. Furthermore, as an example, the light emitting elements 40a to 40c output projection light 401 to 403 of the same color, but are not limited to this and at least one of them may output projection light of a different color.

[0056] The light source unit 40 of the projector 2 on the passenger seat 91 side has a light emitting element 40d that outputs projection light 404 for projecting pattern 34, a light emitting element 40e that outputs projection light 405 for projecting pattern 35, and a light emitting element 40f that outputs projection light 406 for projecting pattern 36. These light emitting elements 40d to 40f are arranged in a straight line at equal intervals on a substrate 400.

[0057] As an example, the light emitting elements 40d to 40f are LED elements that output white projection light 404 to 406, but are not limited to this and may be LD elements, etc. Furthermore, as an example, the light emitting elements 40d to 40f output projection light 404 to 406 of the same color, but are not limited to this and at least one of them may output projection light of a different color.

[0058] The condenser lens section 41 on the driver's seat 90 side has a condenser lens 41a that condenses projection light 401, a condenser lens 41b that condenses projection light 402, and a condenser lens 41c that condenses projection light 403. In the condenser lens section 41, the condenser lenses 41a to 41c are integrally formed, but the present invention is not limited to this and the condenser lenses may be formed separately.

[0059] Furthermore, the condenser lens section 41 on the passenger seat 91 side has a condenser lens 41d that condenses the projection light 404, a condenser lens 41e that condenses the projection light 405, and a condenser lens 41f that condenses the projection light 405. In the condenser lens section 41, the condenser lenses 41d to 41f are integrally formed, but the present invention is not limited to this and the condenser lenses 41d to 41f may be formed separately.

[0060] The projection lens unit 42 on the driver's seat 90 side has a projection lens 42a that magnifies and projects the pattern 31, a projection lens 42b that magnifies and projects the pattern 32, and a projection lens 42c that magnifies and projects the pattern 33. The projection lens unit 42 is formed with the projection lenses 42a to 42c integrally, but is not limited to this and may be formed separately. The projection lenses 42a to 42c are exposed through the through holes 21a to 21c of the housing 20.

[0061] The projection lens unit 42 on the passenger seat 91 side has a projection lens 42d that enlarges and projects the pattern 34, a projection lens 42e that enlarges and projects the pattern 35, and a projection lens 42f that enlarges and projects the pattern 36. In the projection lens unit 42, the projection lenses 42d to 42f are integrally formed, but the present invention is not limited to this and they may be formed separately.

[0062] As a modified example, the projection area 200 and the projection area 201 are not limited to the panel 93, but may be a floor mat or the like at the feet of the passenger.

[0063] (Configuration of control unit 10) The control unit 10 is a microcomputer that includes, for example, a CPU (Central Processing Unit) that performs calculations and processing on acquired data according to stored programs, and semiconductor memories such as RAM (Random Access Memory) and ROM (Read Only Memory). The ROM stores, for example, programs for operating the control unit 10. The RAM is used, for example, as a storage area for temporarily storing calculation results and the like.

[0064] 1(b), the control unit 10 is electrically connected to the light-emitting elements 40a to 40f. The control unit 10 is configured to control the turning on and off of the light-emitting elements 40a to 40c of the projector 2 on the driver's seat 90 side by outputting a first lighting control signal S1 to a third lighting control signal S3. The control unit 10 is also configured to control the turning on and off of the light-emitting elements 40d to 40f of the projector 2 on the passenger's seat 91 side by outputting a fourth lighting control signal S4 to a sixth lighting control signal S6.

[0065] The light emitting elements 40a to 40f of the projectors 2 on the driver's seat 90 side and the passenger's seat 91 side are turned on by inputting, for example, the first lighting control signal S1 to the sixth lighting control signal S6, and are turned off when no signal is input. The first lighting control signal S1 to the sixth lighting control signal S6 are, for example, PWM (Pulse Width Modulation) signals, but are not limited to this.

[0066] The control unit 10 selects the patterns 31 to 36 to be turned on or off based on the control signal S7 obtained from the air conditioner 95, and outputs a lighting control signal for the light emitting elements to be turned on.

[0067] (Effects of the first embodiment) The vehicle image projection system 1 according to this embodiment makes it easier for the occupant to intuitively recognize the air conditioning state of the air conditioner. Specifically, the vehicle image projection system 1 projects the air conditioning state of the air conditioner 95 as the projection image 202 and the projection image 203, making it easier for the occupant to intuitively recognize the air conditioning state on the driver's seat 90 side and the passenger seat 91 side compared to a case where this configuration is not adopted.

[0068] The vehicle image projection system 1 can visually notify the occupants of information such as the air conditioning status, such as the wind direction, set temperature, air volume, and swing operation, by changing the pattern, projection area, color, etc. that is projected.

[0069] Compared to changing the color or brightness of the lighting, the vehicle image projection system 1 can intuitively notify the passengers of changes in the air conditioning state.

[0070] The vehicle image projection system 1 moves the projected image according to the air conditioning status, so compared to when this configuration is not adopted, it can display animation according to the air conditioning status, allowing occupants to intuitively recognize the air conditioning status.

[0071] [Second embodiment] The second embodiment differs from the first embodiment in that the projector is linked to a mechanism that changes the wind direction.

[0072] Fig. 7(a) is a diagram showing an example of the arrangement of a projector according to the second embodiment, and Fig. 7(b) and Fig. 7(c) are diagrams for explaining an example of the installation of the projector. In the embodiments described below, parts having the same functions and configurations as those in the first embodiment are given the same reference numerals as those in the first embodiment, and their description will be omitted.

[0073] Projector 2 is attached to a mechanism for changing the air conditioning state of air conditioner 95. This mechanism for changing the air conditioning state is a mechanism for changing the direction of air blown from air conditioner 95. Projector 2 projects an image in the direction of the air blown by the mechanism for changing the air conditioning state.

[0074] 7(a), the mechanism for changing the airflow direction is, for example, a register 905 that can change the direction in which conditioned air 907 is blown toward the rear seat 92. The vehicle 9 is provided with a register 905 that blows conditioned air 907 toward the rear seat 92 on the driver's seat 90 side, and a register 905 that blows conditioned air 907 toward the rear seat 92 on the passenger seat 91 side. The projected image projected onto the rear seat 92 on the driver's seat 90 side is projected image 202d. The projected image projected onto the rear seat 92 on the passenger seat 91 side is projected image 202e.

[0075] 7(b) and 7(c), the register 905 has a plurality of fins 906. The projector 2 is attached to these fins 906. Note that the projector 2 is not limited to being attached to the fins 906 of the register 905, and may be attached to a member that moves in conjunction with the fins 906.

[0076] As shown in FIGS. 7(b) and 7(c), the projector 2 is attached to the fins 906, so that the direction of the optical axis 204 and the direction of the air conditioning airflow 907 coincide with each other.

[0077] Projection area 205 onto which projection images 202d and 202e are projected moves on surface 920 of rear seat 92 according to the direction of fin 906, that is, the direction of air conditioning airflow 907. Passengers seated in rear seat 92 can intuitively recognize the direction of air conditioning airflow 907 by projection images 202d and 202e.

[0078] The projected images 202d and 202e may also indicate other air conditioning conditions such as the set temperature, air volume, etc. The occupant can intuitively recognize that the conditioned airflow 907 is being blown toward the surface 920 onto which the projected images 202d and 202e are projected, and can also intuitively recognize the set temperature and air volume from the projected images 202d and 202e.

[0079] (Effects of the second embodiment) In the vehicle image projection system 1 of this embodiment, the projector 2 is attached to the fin 906 of the register 905, so it is easier for passengers sitting in the rear seat 92 to visually recognize the direction of the air conditioning airflow 907 compared to when this configuration is not adopted.

[0080] According to the vehicle image projection system 1 of at least one of the embodiments described above, it becomes easier for the occupant to intuitively recognize the air conditioning state of the air conditioner.

[0081] Although several embodiments and modifications of the present invention have been described above, these embodiments and modifications are merely examples and do not limit the scope of the invention as claimed. These novel embodiments and modifications may be embodied in various other forms, and various omissions, substitutions, modifications, etc. may be made without departing from the spirit of the present invention. Furthermore, not all combinations of features described in these embodiments and modifications are necessarily essential to solving the problems of the invention. Furthermore, these embodiments and modifications are included within the scope and spirit of the invention, and are also included in the scope of the invention and its equivalents as defined in the claims. [Explanation of symbols]

[0082] 1...vehicle image projection system, 2...projector, 3...handle portion, 4...projection portion, 5...display, 9...vehicle, 10...control portion, 30a-30c...first area to third area, 31-36...handle, 40...light source portion, 40a-40f...light emitting element, 41...condensing lens portion, 41a-41f...condensing lenses, 42...projection lens portion, 42a-42f...projection lenses, 50...display surface, 51...back, 90...driver's seat, 91...passenger seat, 92 ...rear seat, 93...panel, 95...air conditioning unit, 200, 201, 205...projection area, projection areas 200a to 200c...projection area, 202, 203...projected image, 202a to 202e...projected image, 204...optical axis, 401 to 406...projected light, 901, 902...air outlet, 903, 904, 907...air conditioning air, 905...register, 906...fin, 920...surface, 930...design surface, 931...right panel, 932...left panel

Claims

1. A vehicle image projection system comprising at least one image projection device having a pattern portion having at least one pattern corresponding to the air conditioning state of a vehicle's air conditioning unit, and at least one projection portion that projects a projection image of the pattern onto a projection area inside the vehicle.

2. the image projection device is attached to a mechanism for changing the air conditioning state of the air conditioner, The vehicle image projection system of claim 1 .

3. the mechanism for changing the air conditioning state is a mechanism for changing the direction of airflow blown out from the air conditioning device, the image projection device projects the projection image in the direction of the wind direction changed by the mechanism for changing the air conditioning state. The vehicle image projection system of claim 2 .

4. The image projection device includes: the handle portion having a plurality of handles corresponding to the air conditioning states of the air conditioner; a plurality of the projection units that project the projection images corresponding to the plurality of patterns onto the projection area; a control unit that controls the plurality of projection units based on a control signal output from the air conditioner, and projects the projection image according to the air conditioning state; Equipped with The vehicle image projection system of claim 1 .

5. The handle portion is divided into a plurality of handles by regions, the control unit controls the projection unit in response to the control signal, and switches the pattern to be projected by switching the area onto which the projection light output from the projection unit is irradiated.

5. The vehicle image projection system according to claim 4.

6. The control unit controls the projection unit to change the patterns or the projection area according to the change in the air conditioning state in response to the control signal.

6. The vehicle image projection system according to claim 5.

7. The handle portion has a handle that indicates the airflow direction as the air conditioning state.

6. The vehicle image projection system according to claim 5.

8. the at least one image projection device is disposed on the rear side of a display surface of a display disposed in front of a driver's seat and a passenger seat of the vehicle, and projects the projection image from the rear side onto the projection area; 8. The vehicle image projection system according to claim 1.

9. the image projection device uses a design surface of a panel disposed on the back side of the display as the projection area; 9. The vehicle image projection system of claim 8.

10. at least one image projection device on the driver's seat side that projects the projection image according to the air conditioning state on the driver's seat side onto the panel on the driver's seat side of the vehicle; at least one image projection device on the passenger seat side that projects the projection image according to the air conditioning state on the passenger seat side onto the panel on the passenger seat side; Equipped with 10. The vehicle image projection system of claim 9.

Images