A HUD includes a plate that connects an emission-surface of the LCD and a heat sink, is formed of a material having a higher thermal conductivity than air, and is provided with an emission-surface exhaust heat path that is formed to: include a holding region fixed to a periphery of the emission-surface directly or via a material having a higher thermal conductivity than air, and an intermediate region connecting the holding region and the heat sink; connect an end portion, which is opposite to the holding region, of the intermediate region with the heat sink directly or via a material having a higher thermal conductivity than air; extend from the emission-surface to the heat sink via the plate; and have a thermal gradient greater than that of a heat transfer path for transferring heat from the emission-surface to the heat sink by using air as a medium.

A display system that is configured for integration into a vehicle comprises a light source and an optical subsystem optically coupled to the light source. The optical subsystem includes a reflector and at least one semi-reflective optic, wherein the optical subsystem is configured to direct light rays to provide a plurality of virtual images that appear to a viewer concurrently at a respective plurality of different optical depths, by causing light of each of the virtual images to travel a different distance within the optical subsystem before exiting the optical subsystem on a path toward eyes of the viewer.

The present invention relates to a head-up display device comprising: a. a transparent carrier comprising an inlet optical interface and an outlet optical interface, b. a reflector element arranged on one portion of the outer facet of the inlet optical interface, c. A source for projecting information, which source is capable of emitting, in the direction of the reflector element, a light beam polarized according to a main polarization and referred to as the incident beam, the incident beam arriving on the reflector element at an incidence angle and defining, with the reflector element, an incidence plane, the main polarization being a polarization contained within the incidence plane, referred to as P-polarization, the reflector element having a greater reflectivity, over a range of incidence angles including the incidence angle, for P-polarized light than for a rectilinear polarization light perpendicular to the incidence plane, which is referred to as S-polarization.

A head-up display apparatus displays a virtual image suitably overlapped with actual scenery in accordance with a running condition of a vehicle. The head-up display apparatus acquires various kinds of vehicle information which can be detected by a vehicle and the display of the video image is based on the vehicle information. A mirror is configured to reflect the video image formed by the video image display to project onto the windshield. A mirror driver is configured to change an angle of the mirror and a display distance adjusting mechanism is configured to adjust a display distance of the virtual image with respect to the driver. The angle of the mirror is adjusted via the mirror driver based on the vehicle information such that the virtual image can be displayed with respect to the driver to be overlapped with the scenery.

The invention relates to an image generating device (20) comprising: at least one light source (23), a screen (21) designed to be backlit by said light source, and a reflector (25) arranged between said light source and screen such that an inner face (25A) of the reflector reflects at least some of the light emitted by the light source. The reflector (25) has a thermal conductivity greater than 1 W.Math.m.sup.1.Math.K.sup.1. The invention also relates to a head-up display comprising an image generating device of this type.

The invention relates to an image generating device (20) comprising: at least one light source (23), a screen (21) designed to be backlit by said light source, and a reflector (25) arranged between said light source and screen and designed to reflect at least some of the light emitted by the light source. According to the invention, the reflector defines a housing (280) designed to receive the screen such that the reflector has a zone (290) of thermal contact with the screen. The invention also relates to a head-up display comprising an image generating device of this type.

The present invention provides a head-up display apparatus capable of properly presenting information to a wide area. A head-up display apparatus includes: an image light output unit configured to output a first image display light formed by a visible light laser and a second image display light formed by an ultraviolet light laser; a screen that diffuses and transmits the first image display light, and transmits the second image display light without diffusing the second image display light; and a mirror that reflects the first and the second image display lights transmitted through the screen towards a windshield that presents a virtual image to a user by reflecting the visible light laser and presents a real image to the user by receiving the ultraviolet light laser and emitting light by itself.

A method for pairing a key fob with a control unit is provided. The key fob executes an ID authenticated key agreement protocol with a pairing device based on a key fob identification to authenticate one another and to generate a first encryption key. The pairing device encrypts a control unit identification using the first encryption key. The key fob receives the encrypted control unit identification transmitted from the pairing device. The key fob then executes an ID authenticated key agreement protocol with the control unit based on the control unit identification to authenticate one another and to generate a second encryption key. The key fob then receives an operational key transmitted from the control unit that is encrypted with the second encryption key.

A head-up display device displays a near virtual image and a far virtual image formed at different positions. The head-up display device includes an extension optical element, in addition to a first display surface that luminously displays a near display image and a second display surface that luminously displays a far display image. The extension optical element includes a reflective surface disposed on an optical path of light of the far display image. The extension optical element makes a far optical path distance of the far display image longer than a near optical path distance of the near display image by reflection of light by the reflective surface. The extension optical element has a transmission part that transmits light of the near display image in an area overlapping an optical path of light of the near display image.

In various embodiments, methods, systems, and vehicles are provided that include a head-up display and a locator system. In an exemplary embodiment, the head-up display system includes a housing; a light source disposed within the housing; and one or more mirrors disposed within the housing. Also in certain embodiments, the locator system includes: a galvanic mirror disposed outside, and in proximity to, the housing; a laser formed on the galvanic mirror; and a receiver formed on the galvanic mirror.