HEAD-UP DISPLAY DEVICE

To provide a head-up display device capable of properly displaying a virtual image.SOLUTION: In a head-up display device, a transparent cover 23 blocks an opening portion 11, and transmits enlarged display light reflected by a reflection mirror 22. In the opening portion 11, an end-leaf portion F sh...

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Bibliographic Details
Main Authors MIYAZAWA TOMOHIRO, MURATA NAOHISA
Format Patent
LanguageEnglish
Japanese
Published 10.04.2024
Subjects
ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES
ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES
ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES
AUXILIARY DRIVES FOR VEHICLES
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
INSTRUMENTATION OR DASHBOARDS FOR VEHICLES
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PERFORMING OPERATIONS
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
TRANSPORTING
VEHICLES IN GENERAL
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Summary:To provide a head-up display device capable of properly displaying a virtual image.SOLUTION: In a head-up display device, a transparent cover 23 blocks an opening portion 11, and transmits enlarged display light reflected by a reflection mirror 22. In the opening portion 11, an end-leaf portion F shielding light is raised on the opposite side to an eye point EP side of the opening portion 11. The transparent cover 23 includes a curved portion 230 formed in a curved shape. the curved portion 230 has an inside surface portion 232 located on the reflection mirror 22 side, and an outside surface portion 231 located on the opposite side to the reflection mirror 22 side and condensing external light on the end-leaf portion F. The thickness in a third direction Z of the inside surface portion 232 and the outside surface portion 231 is formed to increase from the end-leaf F side toward the eye-point EP, within a range on the eye-point EP side than the lowest point Q2 in the third direction Z of the transparent cover 23.SELECTED DRAWING: Figure 5 【課題】虚像を適正に表示することができるヘッドアップディスプレイ装置を提供する。【解決手段】ヘッドアップディスプレイ装置において、透明カバー２３は、開口部１１を閉塞し、かつ、反射ミラー２２により反射された拡大表示光を透過する。開口部１１は、光を遮蔽する見返し部Ｆが、当該開口部１１のアイポイントＥＰ側とは反対側に立設されている。透明カバー２３は、湾曲状に形成された湾曲部２３０を含んで構成される。湾曲部２３０は、反射ミラー２２側に位置する内側面部２３２、及び、反射ミラー２２側とは反対側に位置し外光を見返し部Ｆに集光する外側面部２３１を有する。そして、内側面部２３２と外側面部２３１との第３方向Ｚの厚みは、透明カバー２３の第３方向Ｚの最下点Ｑ２よりもアイポイントＥＰ側の範囲において、見返し部Ｆ側からアイポイントＥＰ側に向けて厚くなるように形成されている。【選択図】図５
Bibliography:Application Number: JP20220155992