Protective cover of safety helmet, safety helmet and head-up display device

• Main Author: CHEN XIXUN
• Format: Patent
• Language: Chinese; English
• Published: 23.06.2023
• Subjects: HATS; HEAD COVERINGS; HEADWEAR; HUMAN NECESSITIES

The utility model discloses a protective cover of a safety helmet, which is used as a projection screen of a head-up display device. The shield comprises an objective lens and an eyepiece, and the eyepiece is arranged above the objective lens. The objective lens is used for reflecting a display image projected from the head-up display device below the front of the objective lens, the display image is projected to the eyepiece after being reflected by the objective lens, and then the display image is reflected to the rear of the eyepiece by the eyepiece. Therefore, electronic components mounted on the safety helmet can be reduced through the arrangement. The utility model further provides a safety helmet and a head-up display device using the protective cover. 本实用新型公开一种安全帽的护罩，并作为抬头显示装置的投射屏幕。护罩包含一物镜、一目镜，其中，目镜设置于物镜的上方。物镜用以反射从物镜的前下方的抬头显示装置所投射的显示影像，显示影像被物镜反射之后投射到目镜，接着，显示影像被目镜反射到目镜的后方。故前述设置可以减少安装在安全帽上的电子元件。本实用新型还进一步提供应用前述护罩的安全帽及抬头显示装置。