公开(公告)号：US20190310349A1

公开(公告)日：2019-10-10

申请号：US15948091

申请日：2018-04-09

Applicant: VISTEON GLOBAL TECHNOLOGIES, INC.

Inventor： THORSTEN WILMER ,  GIANG-NAM NGUYEN ,  MATTHIAS SCHULZE

IPC: G01S7/484 ,  G01S17/93 ,  G01S17/02

Abstract: A LIDAR apparatus includes a laser source generating a beam of laser light and an imaging device generating an image signal of a pattern of points overlaid upon an image of one or more objects. A controller includes an object detection module receiving the image signal and determining if the object is a protected object, such as a person susceptible to vision impairment from exposure to laser light. A laser intensity module provides an intensity control signal to the laser source and causes the laser source to vary the intensity of the laser light directed toward each of the protected objects. A spatial light modulator may modulate the first beam to project the pattern of points. An SUM control module varies the intensity of the laser light by providing the SIN with an intensity control signal describing one or more low intensity regions corresponding to each of the protected objects,

公开(公告)号：US20190116344A1

公开(公告)日：2019-04-18

申请号：US15785691

申请日：2017-10-17

Applicant: VISTEON GLOBAL TECHNOLOGIES, INC.

Inventor： GIANG-NAM NGUYEN ,  PATRICK NEBOUT ,  BENOIT CHAUVEAU

IPC: H04N9/31 ,  G02B27/01 ,  G02F1/29 ,  B60K35/00

Abstract: A multi-image head-up display device for displaying a plurality of virtual images at different projection distances from a driver of a vehicle includes a picture generating unit with an illumination source that may include a plurality of lasers of different colors to illuminate a spatial light modulator with a first light beam. The spatial light modulator includes blocks of modulating elements to diffract the first light beam to form first and second real images upon first and second respective projection surfaces, each spaced apart from the spatial light modulator by a different focal length. The blocks may be configured as Fourier and/or Fresnel diffractive optical elements. A projection assembly may magnify and direct the real images to the viewer as virtual images each having a different projection distance from the viewer. A method for generating a plurality of virtual images with a head-up display device is also provided.