JP2020046679A5 - Head-up display device and optics - Google Patents

Head-up display device and optics Download PDF

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Publication number
JP2020046679A5
JP2020046679A5 JP2019219338A JP2019219338A JP2020046679A5 JP 2020046679 A5 JP2020046679 A5 JP 2020046679A5 JP 2019219338 A JP2019219338 A JP 2019219338A JP 2019219338 A JP2019219338 A JP 2019219338A JP 2020046679 A5 JP2020046679 A5 JP 2020046679A5
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optical
head
display device
reflection mirror
optical system
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JP2019219338A
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JP2020046679A (en
JP7018922B2 (en
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Priority to JP2021150406A priority patent/JP7200317B2/en
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Publication of JP7018922B2 publication Critical patent/JP7018922B2/en
Priority to JP2022203923A priority patent/JP2023041669A/en
Priority to JP2024035977A priority patent/JP2024061798A/en
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Claims (14)

ヘッドアップディスプレイ装置であって、
画像を表示する表示素子と、
前記表示素子からの光に基づいて虚像を表示させるための光学系と、を備え、
前記光学系は、光路上に配置された反射ミラーを含み、
前記反射ミラーの水平断面形状は、前記反射ミラーが光路上に配置された状態において、鉛直方向を基準として、上部と下部との平均曲率半径が異なる形状である、
ヘッドアップディスプレイ装置。 It is a head-up display device
A display device for displaying the images,
An optical system for displaying a virtual image based on the light from the display element is provided.
Before SL optical science system includes a reflecting mirror disposed on the optical path,
The horizontal cross-sectional shape of the reflection mirror is a shape in which the average radius of curvature of the upper part and the lower part is different with respect to the vertical direction when the reflection mirror is arranged on the optical path.
Head-up display device. 請求項１に記載のヘッドアップディスプレイ装置であって、The head-up display device according to claim 1.
前記反射ミラーは、光路上において、前記表示素子と投射面との間に配置され、The reflection mirror is arranged between the display element and the projection surface on the optical path.
前記光学系は、前記表示素子と前記反射ミラーとの間に配置された光学素子を含む、The optical system includes an optical element arranged between the display element and the reflection mirror.
ヘッドアップディスプレイ装置。Head-up display device. 請求項２に記載のヘッドアップディスプレイ装置であって、The head-up display device according to claim 2.
前記反射ミラーと前記表示素子との配置の距離は、前記反射ミラーからの反射光が前記表示素子と前記光学素子によって遮られない範囲内で短い距離である、The distance between the reflection mirror and the display element is short within a range in which the reflected light from the reflection mirror is not blocked by the display element and the optical element.
ヘッドアップディスプレイ装置。Head-up display device. 請求項２または３に記載のヘッドアップディスプレイ装置であって、The head-up display device according to claim 2 or 3.
前記光学素子は、水平方向の平均曲率半径と垂直方向の平均曲率半径とが異なる、The optical element has a different average radius of curvature in the horizontal direction and an average radius of curvature in the vertical direction.
ヘッドアップディスプレイ装置。Head-up display device. 請求項２〜４のいずれかに記載のヘッドアップディスプレイ装置であって、The head-up display device according to any one of claims 2 to 4.
前記光学素子の光軸方向での光学的距離は、前記光学素子の上部における光束が経由する光学的距離が、前記光学素子の下部における光束が経由する光学的距離よりも短い、The optical distance of the optical element in the optical axis direction is such that the optical distance through which the light beam passes in the upper part of the optical element is shorter than the optical distance through which the light beam passes through in the lower part of the optical element.
ヘッドアップディスプレイ装置。Head-up display device. 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であって、The head-up display device according to any one of claims 1 to 5.
前記表示素子の表示領域の中心が、前記反射ミラーの中心より、鉛直方向を基準として、下側となるように配置される、The center of the display area of the display element is arranged so as to be lower than the center of the reflection mirror with respect to the vertical direction.
ヘッドアップディスプレイ装置。Head-up display device. 請求項１〜６のいずれかに記載のヘッドアップディスプレイ装置であって、The head-up display device according to any one of claims 1 to 6.
前記表示素子は、前記反射ミラーの光軸に対し傾斜して配置される、The display element is arranged so as to be inclined with respect to the optical axis of the reflection mirror.
ヘッドアップディスプレイ装置。Head-up display device. 請求項１〜７のいずれかに記載のヘッドアップディスプレイ装置であって、The head-up display device according to any one of claims 1 to 7.
光源からの光を前記表示素子に導く導光体を備え、A light guide body that guides the light from the light source to the display element is provided.
前記導光体は、前記光源からの光を反射する反射面を前記導光体の内側に有し、前記反射面は互いに分離している、The light guide has a reflecting surface inside the light guide that reflects light from the light source, and the reflecting surfaces are separated from each other.
ヘッドアップディスプレイ装置。Head-up display device. 表示素子からの光に基づいて虚像を表示させるための、ヘッドアップディスプレイ装置における光学系であって、An optical system in a head-up display device for displaying a virtual image based on light from a display element.
前記光学系は、光路上に配置された反射ミラーを含み、The optical system includes a reflective mirror arranged on the optical path.
前記反射ミラーの水平断面形状は、前記反射ミラーが光路上に配置された状態において、鉛直方向を基準として、上部と下部との平均曲率半径が異なる形状である、The horizontal cross-sectional shape of the reflection mirror is a shape in which the average radius of curvature of the upper part and the lower part is different with respect to the vertical direction when the reflection mirror is arranged on the optical path.
光学系。Optical system. 請求項９に記載の光学系であって、The optical system according to claim 9.
前記反射ミラーは、光路上において、前記表示素子と投射面との間に配置され、The reflection mirror is arranged between the display element and the projection surface on the optical path.
前記光学系は、前記表示素子と前記反射ミラーとの間に配置された光学素子を含む、The optical system includes an optical element arranged between the display element and the reflection mirror.
光学系。Optical system. 請求項１０に記載の光学系であって、The optical system according to claim 10.
前記反射ミラーと前記表示素子との配置の距離は、前記反射ミラーからの反射光が前記表示素子と前記光学素子によって遮られない範囲内で短い距離である、The distance between the reflection mirror and the display element is short within a range in which the reflected light from the reflection mirror is not blocked by the display element and the optical element.
光学系。Optical system. 請求項１０または１１に記載の光学系であって、The optical system according to claim 10 or 11.
前記光学素子は、水平方向の平均曲率半径と垂直方向の平均曲率半径とが異なる、The optical element has a different average radius of curvature in the horizontal direction and an average radius of curvature in the vertical direction.
光学系。Optical system. 請求項１０〜１２のいずれかに記載の光学系であって、The optical system according to any one of claims 10 to 12.
前記光学素子の光軸方向での光学的距離は、前記光学素子の上部における光束が経由する光学的距離が、前記光学素子の下部における光束が経由する光学的距離よりも短い、The optical distance of the optical element in the optical axis direction is such that the optical distance through which the light beam passes in the upper part of the optical element is shorter than the optical distance through which the light beam passes through in the lower part of the optical element.
光学系。Optical system. 請求項９〜１３のいずれかに記載の光学系であって、The optical system according to any one of claims 9 to 13.
前記反射ミラーは、前記反射ミラーの中心が、前記表示素子の表示領域の中心より、鉛直方向を基準として、上側となるように配置される、The reflection mirror is arranged so that the center of the reflection mirror is above the center of the display area of the display element with respect to the vertical direction.
光学系。Optical system.
JP2019219338A 2019-12-04 2019-12-04 Head-up display device Active JP7018922B2 (en)

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JP2019219338A JP7018922B2 (en) 2019-12-04 2019-12-04 Head-up display device
JP2021150406A JP7200317B2 (en) 2019-12-04 2021-09-15 head-up display device
JP2022203923A JP2023041669A (en) 2019-12-04 2022-12-21 head-up display device
JP2024035977A JP2024061798A (en) 2019-12-04 2024-03-08 Head-up display device

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