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HUD

A head-up display device and technology for displaying light, which are used in transportation and packaging, instruments, vehicle parts, etc., can solve the problems of difficulty in improving virtual image quality and low degree of freedom of correction, and achieve the effect of miniaturization and high image quality.

Active Publication Date: 2021-04-06
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, in the above-mentioned structure, there is only one surface having power in the mirror reflection surface from the image display element to the image reflection surface, and since the degree of freedom of correction of the aberration displayed by the virtual image is low, Difficulty improving the quality of virtual images

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0103] FOV[HxV] 5°x1.5° Entrance pupil size [mm x mm] 180x 40 Virtual image distance [mm] 2500 Image display area [mm x mm] 33.3x 10 Image display area tilt angle 12.1°

[0104] [Table 2]

[0105]

[0106] [table 3]

[0107] Example 1

[0108]

[0109] The symbols, meanings and description methods of each data described in the description of the first embodiment above are the same in the following embodiments as long as there is no particular limitation, so repeated descriptions will be omitted below.

Embodiment 2

[0113] FOV[HxV] 7°x1.5° Entrance pupil size [mm x mm] 180x 40 Virtual image distance [mm] 2500 Image display area [mm x mm] 50x 10.7 Image display area tilt angle 12.9°

[0114] [table 5]

[0115]

[0116] [Table 6]

[0117] Example 2

[0118]

Embodiment 3

[0122] FOV[HxV] 7°x2° Entrance pupil size [mm x mm] 180x 40 Virtual image distance [mm] 2500 Image display area [mm x mm] 44x 12.57 Image display area tilt angle 14.9°

[0123] [Table 8]

[0124]

[0125] [Table 9]

[0126] Example 3

[0127]

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PUM

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Abstract

The present invention provides a head-up display device capable of displaying a virtual image with high image quality while achieving miniaturization while securing an optical path length from an image display element to an image reflection surface. The head-up display device (3) includes: a first reflective mirror (6) with optical power; a second reflective mirror (7) with optical power; and a light shielding member provided with an opening (8), the opening (8) is configured Between the image display surface (5) of the image display element (10) and the second reflection mirror (7), the display light emitted from the image display surface (5) follows the first reflection mirror (6), the second reflection mirror ( 7) The first mirror (6) performs reflection in sequence, and passes through the opening (8) to reach the front window (image reflection surface) (2).

Description

technical field [0001] The present invention relates to a head-up display device for moving bodies such as automobiles. Background technique [0002] Conventionally, a head-up display device is known as a device for displaying information such as directions, attention calls, and driving speeds to drivers of motor vehicles or the like. The head-up display device projects a virtual image of the image to be displayed on the image reflection surface of the front window, combiner, etc., so that the driver can recognize the information necessary for the operation of the vehicle without taking his eyes off the field of view. Patent Document 1 is proposed as such a head-up display device. [0003] prior art literature [0004] Patent Document 1: Japanese Patent Laid-Open No. 2009-115908 [0005] Such a head-up display device must be installed in a limited space around the driver's seat of a mobile vehicle such as a motor vehicle, and thus needs to be compact. In addition, the vi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B27/01B60K35/00
CPCB60K35/00G02B27/0101G02B2027/0183B60K2360/334G02B2027/0118G02B2027/011G02B2027/015G02B2027/0141
Inventor 川名正直马场智之
Owner FUJIFILM CORP