公开(公告)号：EP3715919A1

公开(公告)日：2020-09-30

申请号：EP20159038.7

申请日：2020-02-24

申请人： YAZAKI CORPORATION

发明人： NARUSHIMA, Noriaki

IPC分类号： G02B3/00 ,  G02B3/02 ,  G02B27/01

摘要： The head-up display device (1) includes a light source (22); a condensing lens (23); a lens array (24) diffusing light from the condensing lens (23); a liquid-crystal display unit (10) emitting light from the lens array (24) as display light; and a reflecting member (30) reflecting the display light emitted from the liquid-crystal display unit (10) and projecting the display light on a windshield (103). The lens array (24) has, in an emitting surface (24b), a plurality of lens surfaces (24s) projecting toward the liquid-crystal display unit (10) and having an aspherical sectional shape, and, in the lens surface (24s), the curvature radius of a part (24t) emitting display light to be projected on an upper part (103t) of the windshield (103) is smaller than the curvature radius of a part (24u) emitting display light to be projected on a lower part (103u) of the windshield (103).

公开(公告)号：EP3677955A1

公开(公告)日：2020-07-08

申请号：EP19218947.0

申请日：2019-12-20

申请人： YAZAKI CORPORATION

发明人： NARUSHIMA, Noriaki

IPC分类号： G02F1/13357

摘要： A backlight unit (20) includes: a first light source (22a), a first front lens (25) configured to condense light emitted from the first light source (22a), a first rear lens (23) configured to condense light emitted from the first front lens (25), a second light source (22b) adjacent to the first light source (22a), a second front lens (26) configured to condense light emitted from the second light source (22b), a second rear lens (24) connected with the first rear lens (23) at an edges (El, E2) and configured to condense light emitted from the second front lens (26), and a diffusion member (27) facing a light-emitting surface (23b) of the first rear lens (23) and a light-emitting surface (24b) of the second rear lens (24). An outer edge portion of the light condensed by the first front lens (25) enters the edge (E2) of the second rear lens (24), and an outer edge portion of the light condensed by the second front lens (26) enters the edge (El) of the first rear lens (23) .