TWM558367U

TWM558367U - Vehicular head-up display using geometrical optical structure to shield ambient light

Info

Publication number: TWM558367U
Application number: TW106217331U
Authority: TW
Inventors: 陳紀暐; 林威志
Original assignee: 英錡科技股份有限公司
Priority date: 2017-11-22
Filing date: 2017-11-22
Publication date: 2018-04-11

Abstract

A vehicular head-up display using a geometrical optical structure to shield ambient light is arranged in a vehicle and includes an image forming unit, a reflection mirror, and a light shield plate. The image forming unit is arranged under a roof of the vehicle. The reflection mirror is arranged below a windshield in the front of the vehicle, and a reflection surface of the reflection mirror faces backward and upward with respect to the vehicle. The light shield plate is arranged below the windshield in which the reflection mirror is between the light shield plate and the windshield, and a light shield surface of the light shield plate faces forward and upward with respect to the vehicle. The light shield plate shields light rays which come from the ambient light and are introduced by the reflection mirror to enter the vehicle to project onto a user's eyes. Light rays emitted by the image forming unit are projected onto the reflection surface of the reflection mirror; light rays reflected from the reflection mirror are projected onto the windshield; light rays reflected from the windshield are projected onto the user's eyes so that the user sees a virtual image formed in front of the windshield.

Description

使用幾何光學結構遮蔽環境光之車用抬頭顯示器Head-up display for vehicles that use ambient optical structures to shield ambient light

本創作是有關於一種車用抬頭顯示器，且特別是有關於一種可遮蔽環境光之車用抬頭顯示器。The present invention relates to a head-up display for a vehicle, and more particularly to a head-up display for a vehicle that can shield ambient light.

圖1為一種現有之車用抬頭顯示器之示意圖。請參見圖1，車用抬頭顯示器1設於車輛2內，包括投影成像單元11以及反射鏡12，其中投影成像單元11用以產生實像，反射鏡12用以對投影成像單元11產生的實像進行光學反射及/或放大。投影成像單元11以及反射鏡12採用分離之設計，即投影成像單元11設於車輛2之車頂21；反射鏡12設於車輛2前方之擋風玻璃22的下方，且反射鏡12之反射面面向車輛2後上方，在本例中反射鏡12之反射面以與水平夾30度之角度面向車輛2後上方。投影成像單元11發出之光線投射到反射鏡12之反射面，反射鏡12反射之光線投射到擋風玻璃22，擋風玻璃22反射之光線投射到使用者（如駕駛者或乘客）的眼睛E1而讓使用者看到擋風玻璃22前方形成的虛像P1。虛像P1形成在駕駛者之行車視線上，使駕駛者可以在注意道路路況的同時，從虛像中獲得行車所需資訊。1 is a schematic view of a conventional vehicle head-up display. Referring to FIG. 1, the vehicle heads-up display 1 is disposed in the vehicle 2, and includes a projection imaging unit 11 and a mirror 12, wherein the projection imaging unit 11 is used to generate a real image, and the mirror 12 is used to perform real image generated by the projection imaging unit 11. Optical reflection and / or amplification. The projection imaging unit 11 and the mirror 12 are of a separate design, that is, the projection imaging unit 11 is disposed on the roof 21 of the vehicle 2; the mirror 12 is disposed below the windshield 22 in front of the vehicle 2, and the reflecting surface of the mirror 12 Facing the rear upper side of the vehicle 2, in this example the reflecting surface of the mirror 12 faces the rear upper side of the vehicle 2 at an angle of 30 degrees from the horizontal clip. The light emitted by the projection imaging unit 11 is projected onto the reflecting surface of the mirror 12, and the light reflected by the mirror 12 is projected onto the windshield 22, and the light reflected by the windshield 22 is projected onto the eye E1 of the user (such as a driver or a passenger). The user is allowed to see the virtual image P1 formed in front of the windshield 22. The virtual image P1 is formed on the driver's line of sight, so that the driver can obtain the information required for driving from the virtual image while paying attention to the road condition.

然而，如圖2所示，這種車用抬頭顯示器1因為反射鏡12之反射面以一特定角度面向車輛2後上方，所以在特定方向、角度的環境光（如太陽光）會有機會藉由反射鏡12引入車輛2內並直接照射到駕駛者或乘客的眼睛E1，造成駕駛者或乘客的不適，甚至於影響行車安全。However, as shown in FIG. 2, the vehicular head-up display 1 has a chance to borrow ambient light (such as sunlight) in a specific direction and angle because the reflecting surface of the mirror 12 faces the rear of the vehicle 2 at a specific angle. The mirror 12 is introduced into the vehicle 2 and directly illuminates the eyes E1 of the driver or passenger, causing discomfort to the driver or passenger, and even affecting driving safety.

本創作的目的在提出一種使用幾何光學結構遮蔽環境光之車用抬頭顯示器，以期改善反射鏡引入車輛內之環境光直接照射到駕駛者或乘客的眼睛之問題。The purpose of this creation is to propose a vehicle head-up display that uses a geometric optical structure to shield ambient light in order to improve the problem that ambient light introduced into the vehicle directly into the eyes of the driver or passenger.

為達到上述目的，本創作提出一種使用幾何光學結構遮蔽環境光之車用抬頭顯示器，設於車輛內，包括投影成像單元、反射鏡以及遮光板。投影成像單元設於車輛之車頂。反射鏡設於車輛前方之擋風玻璃的下方，反射鏡之反射面面向車輛後上方。遮光板設於擋風玻璃的下方，且反射鏡位於遮光板與擋風玻璃之間，遮光板之遮光面面向車輛前上方。遮光板對環境光中藉由反射鏡引入車輛內並照射到使用者眼睛之光線進行遮蔽。投影成像單元發出之光線投射到反射鏡之反射面，反射鏡反射之光線投射到擋風玻璃，擋風玻璃反射之光線投射到使用者眼睛而讓使用者看到擋風玻璃前方形成的虛像。In order to achieve the above object, the present invention proposes a vehicle head-up display that uses a geometric optical structure to shield ambient light, and is disposed in a vehicle, including a projection imaging unit, a mirror, and a visor. The projection imaging unit is located on the roof of the vehicle. The mirror is disposed below the windshield in front of the vehicle, and the reflecting surface of the mirror faces the rear of the vehicle. The visor is disposed under the windshield, and the mirror is located between the visor and the windshield, and the opaque surface of the visor faces the front upper side of the vehicle. The visor shields ambient light from the light introduced into the vehicle by the mirror and illuminating the user's eyes. The light emitted by the projection imaging unit is projected onto the reflecting surface of the mirror, and the light reflected by the mirror is projected onto the windshield, and the light reflected by the windshield is projected onto the user's eyes to allow the user to see the virtual image formed in front of the windshield.

在本創作一實施例中，遮光板之遮光面形成有吸光（light absorbing）層。In an embodiment of the present invention, the light shielding surface of the visor is formed with a light absorbing layer.

在本創作一實施例中，反射鏡之反射面為平面。在本創作另一實施例中，反射鏡之反射面為曲面。In an embodiment of the present invention, the reflecting surface of the mirror is a flat surface. In another embodiment of the present invention, the reflecting surface of the mirror is a curved surface.

在本創作一實施例中，反射鏡之反射面以與水平夾23度之角度面向車輛後上方。遮光板之遮光面以與水平夾63度之角度面向車輛前上方。此外，反射鏡之反射面的一端可與遮光板之遮光面的一端互相連接。In an embodiment of the present invention, the reflecting surface of the mirror faces the rear upper side of the vehicle at an angle of 23 degrees from the horizontal clip. The light-shielding surface of the visor faces the front upper side of the vehicle at an angle of 63 degrees from the horizontal clip. In addition, one end of the reflecting surface of the mirror may be connected to one end of the light shielding surface of the light shielding plate.

為讓本創作上述和其他目的、特徵和優點能更明顯易懂，下文特舉較佳實施例，並配合所附圖式，作詳細說明如下。The above and other objects, features and advantages of the present invention will become more apparent and understood.

在以下實施例中，相同或相似的元件符號代表相同或相似的元件。此外，以下實施例中所提到的方向用語，例如：上、下、左、右、前或後等，僅是參考附加圖式的方向，因此，使用的方向用語是用來說明的，而並非用來限制本創作。In the following embodiments, the same or similar component symbols represent the same or similar components. In addition, the directional terms mentioned in the following embodiments, for example, up, down, left, right, front or back, etc., refer only to the direction of the additional drawing, and therefore, the directional term used is used for explanation, and Not intended to limit this creation.

圖3為本創作之車用抬頭顯示器之一實施例示意圖。請參見圖3，車用抬頭顯示器3設於車輛2內，包括投影成像單元31、反射鏡32以及遮光板33，其中投影成像單元31用以產生實像，反射鏡32用以對投影成像單元31產生的實像進行光學反射及/或放大，遮光板33用以遮蔽反射鏡32引入車輛2內之環境光。在一實施例中，投影成像單元31可以是採用雷射掃描投影技術的微型投影機，但不限於此，例如可以改成是採用DLP（Digital Lighting Process）或LCoS（Liquid Crystal on Silicon）投影技術等的微型投影機；而反射鏡32可以是採用曲面反射面的反射鏡，但不限於此，例如可以改成是採用平面反射面的反射鏡。FIG. 3 is a schematic view showing an embodiment of the vehicle head-up display of the present invention. Referring to FIG. 3, the vehicular head-up display 3 is disposed in the vehicle 2, and includes a projection imaging unit 31, a mirror 32, and a visor 33, wherein the projection imaging unit 31 is used to generate a real image, and the mirror 32 is used to project the imaging unit 31. The resulting real image is optically reflected and/or amplified, and the visor 33 is used to shield the ambient light introduced by the mirror 32 into the vehicle 2. In an embodiment, the projection imaging unit 31 may be a micro projector using a laser scanning projection technology, but is not limited thereto, and may be changed to a DLP (Digital Lighting Process) or LCoS (Liquid Crystal on Silicon) projection technology. The mirror 32 may be a mirror using a curved reflecting surface, but is not limited thereto, and may be, for example, a mirror using a plane reflecting surface.

投影成像單元31、反射鏡32以及遮光板33採用分離之設計，即投影成像單元31設於車輛2之車頂21；反射鏡32設於車輛2前方之擋風玻璃22的下方，反射鏡32之反射面面向車輛2後上方，在本例中反射鏡32之反射面以與水平夾23度之角度面向車輛2後上方；遮光板33設於擋風玻璃22的下方，且反射鏡32位於遮光板33與擋風玻璃22之間，遮光板33之遮光面面向車輛2前上方，在本例中遮光板33之遮光面以與水平夾63度之角度面向車輛2前上方。此外，反射鏡32之反射面的一端可與遮光板33之遮光面的一端互相連接。The projection imaging unit 31, the mirror 32, and the visor 33 are of a separate design, that is, the projection imaging unit 31 is disposed on the roof 21 of the vehicle 2; the mirror 32 is disposed below the windshield 22 in front of the vehicle 2, and the mirror 32 is provided. The reflecting surface faces the rear of the vehicle 2, and in this example, the reflecting surface of the mirror 32 faces the rear of the vehicle 2 at an angle of 23 degrees with the horizontal clip; the visor 33 is disposed below the windshield 22, and the mirror 32 is located Between the visor 33 and the windshield 22, the light-shielding surface of the visor 33 faces the front upper side of the vehicle 2. In this example, the light-shielding surface of the visor 33 faces the front upper side of the vehicle 2 at an angle of 63 degrees from the horizontal clip. Further, one end of the reflecting surface of the mirror 32 may be connected to one end of the light shielding surface of the light shielding plate 33.

投影成像單元31發出之光線投射到反射鏡32之反射面，反射鏡32反射之光線投射到擋風玻璃22，擋風玻璃22反射之光線投射到使用者（如駕駛者或乘客）的眼睛E2而讓使用者看到擋風玻璃22前方形成的虛像P2。虛像P2形成在駕駛者之行車視線上，使駕駛者可以在注意道路路況的同時，從虛像中獲得行車所需資訊。需要注意的是，遮光板33之設置方式必須不會遮蔽由投影成像單元31投射到反射鏡32之光線以及進一步由擋風玻璃22投射到使用者眼睛E2之光線。The light emitted by the projection imaging unit 31 is projected onto the reflecting surface of the mirror 32. The light reflected by the mirror 32 is projected onto the windshield 22, and the light reflected by the windshield 22 is projected onto the eye E2 of the user (such as a driver or passenger). The user is allowed to see the virtual image P2 formed in front of the windshield 22. The virtual image P2 is formed on the driver's line of sight, so that the driver can obtain the information required for driving from the virtual image while paying attention to the road condition. It should be noted that the visor 33 must be disposed in such a manner as not to obscure the light projected by the projection imaging unit 31 onto the mirror 32 and the light that is further projected by the windshield 22 to the user's eye E2.

如圖4所示，本創作之車用抬頭顯示器3因為反射鏡32之反射面以一特定角度面向車輛2後上方，使得在特定方向、角度的環境光（如太陽光）會有機會藉由反射鏡32引入車輛2內，但卻會被遮光板33遮蔽而不會直接照射到駕駛者或乘客的眼睛E2，使駕駛者或乘客不會產生不舒服感或影響行車安全。需要說明的是，在本例中遮光板33之遮光面形成有吸光層34，吸光層34可將反射鏡32引入車輛2內之環境光吸收，避免反射鏡32引入車輛2內之環境光有機會進一步藉由遮光板33反射到擋風玻璃22而降低虛像P2的顯示品質。As shown in FIG. 4, the present vehicle head-up display 3 has an opportunity to face ambient light (such as sunlight) in a specific direction and angle because the reflecting surface of the mirror 32 faces the rear of the vehicle 2 at a specific angle. The mirror 32 is introduced into the vehicle 2, but is shielded by the visor 33 without directly illuminating the eyes E2 of the driver or the passenger, so that the driver or the passenger does not feel uncomfortable or affects driving safety. It should be noted that, in this example, the light shielding surface of the visor 33 is formed with a light absorbing layer 34, and the light absorbing layer 34 can absorb the ambient light absorbed by the mirror 32 into the vehicle 2, thereby preventing the ambient light of the mirror 32 from being introduced into the vehicle 2. The opportunity is further reduced by the visor 33 to the windshield 22 to reduce the display quality of the virtual image P2.

雖然本創作已以較佳實施例揭露如上，然其並非用以限定本創作，任何本領域技術人員，在不脫離本創作的精神和範圍內，當可作些許更動與潤飾，因此本創作的保護範圍當視所附的申請專利範圍所界定者為準。Although the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the present invention, and any person skilled in the art can make some changes and refinements without departing from the spirit and scope of the present invention. The scope of protection is subject to the definition of the scope of the attached patent application.

1‧‧‧車用抬頭顯示器
11‧‧‧投影成像單元
12‧‧‧反射鏡
2‧‧‧車輛
21‧‧‧車頂
22‧‧‧擋風玻璃
3‧‧‧車用抬頭顯示器
31‧‧‧投影成像單元
32‧‧‧反射鏡
33‧‧‧遮光板
34‧‧‧吸光層
E1、E2‧‧‧眼睛
P1、P2‧‧‧虛像1‧‧‧Car head-up display
11‧‧‧Projection imaging unit
12‧‧‧Mirror
2‧‧‧ Vehicles
21‧‧‧Car roof
22‧‧‧ windshield
3‧‧‧Car head-up display
31‧‧‧Projection imaging unit
32‧‧‧Mirror
33‧‧ ‧ visor
34‧‧‧Light absorbing layer
E1, E2‧‧ eyes
P1, P2‧‧‧ virtual image

圖1為一種現有之車用抬頭顯示器之示意圖；圖2為圖1所示之車用抬頭顯示器受到環境光影響之示意圖；圖3為本創作之車用抬頭顯示器之一實施例示意圖；以及圖4為圖3所示之車用抬頭顯示器受到環境光影響之示意圖。1 is a schematic view of a conventional vehicle head-up display; FIG. 2 is a schematic view of the vehicle head-up display shown in FIG. 1 affected by ambient light; FIG. 3 is a schematic view of an embodiment of the vehicle head-up display of the present invention; 4 is a schematic diagram of the vehicle head-up display shown in FIG. 3 affected by ambient light.

Claims

一種使用幾何光學結構遮蔽環境光之車用抬頭顯示器，設於一車輛內，包括：一投影成像單元，設於該車輛之一車頂；一反射鏡，設於該車輛前方之一擋風玻璃的下方，該反射鏡之反射面面向該車輛後上方；以及一遮光板，設於該擋風玻璃的下方，且該反射鏡位於該遮光板與該擋風玻璃之間，該遮光板之遮光面面向該車輛前上方，該遮光板對環境光中藉由該反射鏡引入該車輛內並照射到使用者眼睛之光線進行遮蔽；其中，該投影成像單元發出之光線投射到該反射鏡之反射面，該反射鏡反射之光線投射到該擋風玻璃，該擋風玻璃反射之光線投射到使用者眼睛而讓使用者看到該擋風玻璃前方形成的虛像。A vehicle head-up display using a geometric optical structure to shield ambient light, disposed in a vehicle, comprising: a projection imaging unit disposed on a roof of the vehicle; a mirror disposed on a windshield in front of the vehicle a reflector surface of the mirror facing the rear of the vehicle; and a visor disposed under the windshield, the mirror being located between the visor and the windshield, the visor shielding Facing the front of the vehicle, the visor shields the ambient light from being introduced into the vehicle by the mirror and illuminating the eyes of the user; wherein the light emitted by the projection imaging unit is reflected to the reflector The light reflected by the mirror is projected onto the windshield, and the light reflected by the windshield is projected onto the user's eyes to allow the user to see the virtual image formed in front of the windshield.

如申請專利範圍第1項所述之使用幾何光學結構遮蔽環境光之車用抬頭顯示器，其中，該遮光板之遮光面形成有一吸光層。The vehicle head-up display for shielding ambient light using a geometrical optical structure according to the first aspect of the invention, wherein the light-shielding surface of the light-shielding plate is formed with a light-absorbing layer.

如申請專利範圍第1項所述之使用幾何光學結構遮蔽環境光之車用抬頭顯示器，其中，該反射鏡之反射面為平面。A vehicle head-up display using a geometrical optical structure to shield ambient light as described in claim 1, wherein the reflecting surface of the mirror is a flat surface.

如申請專利範圍第1項所述之使用幾何光學結構遮蔽環境光之車用抬頭顯示器，其中，該反射鏡之反射面為曲面。The vehicle head-up display for shielding ambient light using a geometrical optical structure according to the first aspect of the invention, wherein the reflective surface of the mirror is a curved surface.

如申請專利範圍第1項所述之使用幾何光學結構遮蔽環境光之車用抬頭顯示器，其中，該反射鏡之反射面以與水平夾23度之角度面向該車輛後上方。A vehicle head-up display for shielding ambient light using a geometrical optical structure according to the first aspect of the invention, wherein the reflecting surface of the mirror faces the rear upper side of the vehicle at an angle of 23 degrees from the horizontal clip.

如申請專利範圍第5項所述之使用幾何光學結構遮蔽環境光之車用抬頭顯示器，其中，該遮光板之遮光面以與水平夾63度之角度面向該車輛前上方。A vehicle head-up display for shielding ambient light using a geometrical optical structure according to claim 5, wherein the light-shielding surface of the visor faces the front upper portion of the vehicle at an angle of 63 degrees from the horizontal clip.

如申請專利範圍第6項所述之使用幾何光學結構遮蔽環境光之車用抬頭顯示器，其中，該反射鏡之反射面的一端與該遮光板之遮光面的一端互相連接。A vehicle head-up display for shielding ambient light using a geometrical optical structure according to claim 6, wherein one end of the reflecting surface of the reflecting mirror and one end of the light-shielding surface of the light shielding plate are connected to each other.