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Projection display equipment for vehicles

A projection display and vehicle technology, applied in vehicle components, static indicators, instruments, etc., can solve problems such as reducing display quality, and achieve the effect of improving display quality and suppressing the increase in quantity

Active Publication Date: 2020-01-17
YAZAKI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, among various aberrations, the aberration caused by the three-dimensional distortion of the displayed image (virtual image) due to the "curvature of the image plane" is assumed to be a factor that degrades the display quality

Method used

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  • Projection display equipment for vehicles
  • Projection display equipment for vehicles
  • Projection display equipment for vehicles

Examples

Experimental program
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Effect test

Deformed example 1

[0072] image 3 The positional relationship among the concave mirror 30B, the object, and the intermediate image to be used in Modification 1 is shown. That is, in Modification 1, using image 3 The concave mirror 30B shown in place of figure 1 Convex mirror 30 is shown.

[0073] Also, in Modification 1, the optical path is formed such that the image 3 The display device 20 corresponding to the shown "object" is disposed at a position farther from the reflective surface of the concave mirror 30B than the focal plane, which includes the focal point f2 of the concave mirror 30B, as image 3 shown. image 3 Point c in represents the spherical center of the reflecting surface of the convex mirror 30B.

[0074] In modification 1, such as image 3 As shown, the intermediate image 40B is formed as a real image at a position farther from the reflective surface of the concave mirror 30B than the focal point f2 of the concave mirror 30B. The beam of intermediate image 40B, i.e.,...

Deformed example 2

[0078] Figure 4 The positional relationship between the convex lens 30C, the object, and the intermediate image to be used in Modification 2 is shown. also, Figure 5 An optical path of a projection display device for a vehicle according to Modification 2 is shown.

[0079] That is, in Modification 2, using Figure 4 The convex lens 30C shown in place of figure 1 shown in the convex mirror 30, and as Figure 5 The light path is formed as shown. Both faces of the convex lens 30C may have a convex shape, or only one face thereof may have a convex shape and the other face may have a planar shape.

[0080] Also, in Modification 2, the optical path is as Figure 5 formed as shown such that with Figure 4 The display device 20 corresponding to the shown "object" is disposed at a position farther from the convex lens 30C than the focal plane including the focal point f3a of the convex lens 30C, as shown in Figure 4 shown.

[0081] In modification 2, such as Figure 4 As s...

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Abstract

A projection display apparatus for a vehicle, comprising: an intermediate image forming optical part; a display device configured to project light including a display image to the intermediate image forming optical part and form the intermediate image as a virtual image or a real image; and a HUD an optical system that receives light of an intermediate image formed by an intermediate image forming optical part, guides the light to a reflective surface of a windshield of a vehicle or a light reflective part in the vicinity of the windshield, and projects the light such that The displayed image can be visually recognized as a virtual image at a predetermined eye point. The intermediate image forming optical member forms an intermediate image on the display device in a state where at least a part of the intermediate image is bent from a flat surface.

Description

[0001] Cross References to Existing Applications [0002] This application is based on and claims priority from Japanese Patent Application (Application No. 2016-065763) filed on March 29, 2016, the entire contents of which are incorporated herein by reference. technical field [0003] The present invention relates to a projection display apparatus for a vehicle that performs display by using, for example, light reflection of a windshield (window glass) provided in front of a driver in the vehicle. Background technique [0004] In the case of displaying information requested by the driver in a vehicle such as vehicle speed and guidance displays on a navigation system, head-up display (HUD) devices have been used in some instances to enhance the visibility of the display when the driver is viewing the display while driving. visibility of the display. [0005] In a head-up display device for a general vehicle, an optical path is formed such that an image of light including va...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B27/01
CPCG02B27/0101G02B2027/011G02B17/0642B60K2370/334B60K2370/1531B60K35/00G09G3/002G09G2380/10
Inventor 成岛范昭渡边健良
Owner YAZAKI CORP
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