Abstract: A head-up display including a light source module, a spatial light modulator, an imaging screen group and a control unit is provided. The light source module is configured to project a light beam. The spatial light modulator is configured to modulate the light beam as a first image and a second image and project respective image lights of the first and second images. The imaging screen group is configured to reflect the image lights of the first and second images to the visible range of the user, such that the user can view the first and second images. The control unit is coupled to the spatial light modulator to input at least two modulation signals to control the beam-splitting mechanism of the spatial light modulator.

Abstract: A head-up display capable of adjusting an imaging position is provided. The head-up display includes an image generation module, a reflector, a holographic diffraction optical element and a control unit. The image generation module is configured to display and project an image. The reflector is configured to reflect the image and further project the image on a transparent screen through the reflector. The holographic diffraction optical element is disposed on the transparent screen to reflect the image to a visible range of the user's eyes. The control unit is coupled to the reflector or the transparent screen to adjust the viewing angle of the holographic diffraction optical element having a pre-determined angle with the reflector.

Abstract: A head-up display device used in augmented reality is provided. The head-up display device includes a set of reflectors, a first optical module and a reflector adjustment mechanism. The set of reflectors includes at least one moveable reflector. The first optical module is configured to project a first image to at least one moveable reflector and to further project the first image to a target position through the set of reflectors. The reflector adjustment mechanism is configured to adjust the position of at least one moveable reflector to change the height of the target position.

Abstract: A head-up display capable of adjusting an imaging position is provided. The head-up display includes an image generation module, a reflector, a holographic diffraction optical element and a control unit. The image generation module is configured to display and project an image. The reflector is configured to reflect the image and further project the image on a transparent screen through the reflector. The holographic diffraction optical element is disposed on the transparent screen to reflect the image to a visible range of the user's eyes. The control unit is coupled to the reflector or the transparent screen to adjust the viewing angle of the holographic diffraction optical element having a pre-determined angle with the reflector.

Abstract: A head-up display including a light source module, a spatial light modulator, an imaging screen group and a control unit is provided. The light source module is configured to project a light beam. The spatial light modulator is configured to modulate the light beam as a first image and a second image and project respective image lights of the first and second images. The imaging screen group is configured to reflect the image lights of the first and second images to the visible range of the user, such that the user can view the first and second images. The control unit is coupled to the spatial light modulator to input at least two modulation signals to control the beam-splitting mechanism of the spatial light modulator.

Abstract: A head-up display device used in augmented reality is provided. The head-up display device includes a set of reflectors, a first optical module and a reflector adjustment mechanism. The set of reflectors includes at least one moveable reflector. The first optical module is configured to project a first image to at least one moveable reflector and to further project the first image to a target position through the set of reflectors. The reflector adjustment mechanism is configured to adjust the position of at least one moveable reflector to change the height of the target position.

Abstract: A head-up display adapted for use with a windshield or a flat combiner includes an image-generating unit, a curved mirror and a concave mirror. The image-generating unit is operable to generate a light image propagating along a first optical path. The curved mirror is arranged downstream of the first optical path to form a first reflected light image propagating along a second optical path. The concave mirror is arranged downstream of the second optical path to form a second reflected light image propagating along a third optical path to be reflected onto the windshield or the flat combiner. The third optical path extends inclinedly relative to the second optical path and intersects with the first optical path.

Abstract: An optical disc drive including a chassis, a circuit board and a traverse is provided. The traverse includes a carrier, a pick-up head module, a spindle motor module and a flexible flat cable. The carrier has an opening. The pick-up head module is movably disposed in the opening. The spindle motor module disposed on the carrier is located at one side of the pick-up head module. The flexible flat cable disposed in the opening has two connection ends respectively connected to the pick-up head module and the circuit board. The pick-up head module located at a first position enables the flexible flat cable to have a bending portion protruding towards a direction opposite to the position of the spindle motor module. The pick-up head module located at a second position extends the bending portion. The first position is closer to the spindle motor module than the second position is.

Abstract: An optical disc drive includes a main body, a cover, an extension, and an elastic element. The cover includes a pivoting portion and is pivotably connected to the main body via the pivoting portion. The extension is connected to the pivoting portion. The cover is adapted for pivoting relative to the main body to drive the extension to move along a movement path. The elastic element is disposed on the main body and includes two first limiting portions opposite to each other. The movement path extends through a gap between the two first limiting portions. A distance between the two first limiting portions is smaller than an outer diameter of the extension.

Abstract: An optical disc drive includes a main body, a cover, an extension, and an elastic element. The cover includes a pivoting portion and is pivotably connected to the main body via the pivoting portion. The extension is connected to the pivoting portion. The cover is adapted for pivoting relative to the main body to drive the extension to move along a movement path. The elastic element is disposed on the main body and includes two first limiting portions opposite to each other. The movement path extends through a gap between the two first limiting portions. A distance between the two first limiting portions is smaller than an outer diameter of the extension.

Abstract: An optical disc drive including a chassis, a circuit board and a traverse is provided. The traverse includes a carrier, a pick-up head module, a spindle motor module and a flexible flat cable. The carrier has an opening. The pick-up head module is movably disposed in the opening. The spindle motor module disposed on the carrier is located at one side of the pick-up head module. The flexible flat cable disposed in the opening has two connection ends respectively connected to the pick-up head module and the circuit board. The pick-up head module located at a first position enables the flexible flat cable to have a bending portion protruding towards a direction opposite to the position of the spindle motor module. The pick-up head module located at a second position extends the bending portion. The first position is closer to the spindle motor module than the second position is.