To accurately identify a vehicle state. An apparatus identifies a vehicle state and includes a controller connected with an angular velocity sensor and an acceleration sensor, where the controller acquires acceleration per unit time along a vehicle's longitudinal direction axis from the acceleration sensor, determines acceleration variation over a certain period of time, acquires angular velocity per unit time around vehicle's roll axis from the angular velocity sensor, determines the angular velocity variation during the certain period of time, and identifies the vehicle as a first state when the acceleration variation is greater than a first threshold value and the angular velocity variation is greater than a second threshold value, and identifies the vehicle as a second state when the acceleration variation is less than the first threshold value and the angular velocity variation is less than the second threshold value, and outputs the identified result.

A method of illumination includes energizing a light source of a lighting apparatus to emit a plurality of light rays. The method also includes directing a first light ray of the plurality of light rays into a first upper passageway. The method also includes directing a second light ray of the plurality of light rays into a first lower passageway. The method also includes redirecting the first light ray from the first upper passageway into a second upper passageway. The method also includes redirecting the second light ray from the second upper passageway into a second lower passageway.

A headlight control apparatus (1) for performing control on a headlight device (7) which includes a pair of headlight units (3, 5) each including a light source (9) and an image forming section (16R, 16G, 16B) capable of forming an image and disposed in a light path of light from the light source to illuminate light (101, 105) for projecting the image onto a road surface, wherein the headlight control apparatus forms the image in the image forming section such that a first image (103) projected onto the road surface by one of the headlight units includes a second image (107) projected onto the road surface by the other headlight unit.

A pitch angle calculation device includes a first acceleration acquisition unit that acquires an acceleration Gx in a longitudinal axis (x) direction of a vehicle; a second acceleration acquisition unit that acquires an acceleration Gy in a vertical axis (y) direction of a vehicle; a third acceleration acquisition unit that acquires an acceleration in an advancement direction of a vehicle; and a pitch angle calculation unit that calculates a pitch angle formed between the longitudinal axis direction and the vertical axis direction by using the acceleration Gx, the acceleration Gy and the acceleration .

A high-definition lamp unit emits lamp beam with a light distribution containing a cut-off line. A sensor is provided to detect a dynamic component of a pitch angle of a vehicle body during travel. A controller shifts the level of a cut-off line of the light distribution up and down, with reference to a predetermined level defined as a base, corresponding to the dynamic component of the pitch angle of the vehicle body.

A high-definition lamp unit has a plurality of individually controllable pixels, and illuminates a road face with beam with a light distribution pattern corresponding to states of the pixels. The sensor is provided to enable detection of a pitch angle of a vehicle body. A controller controls on/off of the pixels according to the pattern to be drawn on the road face, and corrects the states of the pixels PIX according to the pitch angle.

A headlight optical axis control apparatus calculates an inclination angle of a vehicle with respect to a road surface from a ratio of a difference between acceleration signals in the front-and-rear direction measured at two time points (kn, kn+1) to a difference between acceleration signals in the up-and-down direction measured at the two time points (kn, kn+1), the two time points being in the vicinity of a time when the attitude of a vehicle body becomes equivalent to a stationary state, in a period from a time when the travelling vehicle stops to a time when the vehicle body comes to a halt.

To accurately identify a vehicle state. An apparatus identifies a vehicle state and includes a controller connected with an angular velocity sensor and an acceleration sensor, where the controller acquires acceleration per unit time along a vehicle's longitudinal direction axis from the acceleration sensor, determines acceleration variation over a certain period of time, acquires angular velocity per unit time around vehicle's roll axis from the angular velocity sensor, determines the angular velocity variation during the certain period of time, and identifies the vehicle as a first state when the acceleration variation is greater than a first threshold value and the angular velocity variation is greater than a second threshold value, and identifies the vehicle as a second state when the acceleration variation is less than the first threshold value and the angular velocity variation is less than the second threshold value, and outputs the identified result.

A vehicle lamp includes: a light source unit including at least one light source configured to generate light; a lens that is arranged closer to a front of the vehicle lamp as compared to the light source unit, the lens configured to transmit the light generated by the light source unit; and a shield that is arranged between the light source unit and the lens, and configured to receive the light generated by the light source and allow at least a portion of the received light to pass therethrough, wherein the shield includes a plurality of pixels having respective light transmittances that are configured to be variably controlled, and wherein each of the plurality of pixels is configured to allow independent control of respective light transmittances.

A control device of a vehicle lamp device includes a reception unit and a control unit. The control unit includes a timing determination unit configured to determine a driving timing of an actuator configured to change a posture of the vehicle lamp device. The timing determination unit drives the actuator when an acquisition number of the output values of the acceleration sensor reaches a first number while a vehicle speed is less than a predetermined value, and drives the actuator when the acquisition number of the output values of the acceleration sensor reaches a second number smaller than the first number while the vehicle speed is equal to or greater than the predetermined value.