A method for ascertaining a distance between a vehicle and a projection surface, onto which a characteristic light pattern is projected using a headlight of the vehicle, includes detecting, in an image of the characteristic light pattern captured by an image capturing unit, a characteristic structure produced by a first light-producing unit by evaluating a geometric location relationship in the captured image between the trajectory and characteristic structures of a characteristic light pattern that are located in an environment along the trajectory; calculating a point on the ray path that is correlated with a position of the detected characteristic structure on the trajectory in accordance with the transformation rule; and calculating the distance between the vehicle and the projection surface from the calculated point on the ray path.

An excimer bulb assembly, with an excimer bulb, at least one integral captured reflector, and an integral filter such that the excimer bulb only emits substantial UV radiation between 200 nm and 230 nm, using a filter that passes light from about 200 nm to 234 nm (+/−2 nm).

An excimer bulb assembly, with an excimer bulb, at least one integral captured reflector, and an integral filter such that the excimer bulb only emits substantial UV radiation between 200 nm and 230 nm, using a filter that passes light from about 200 nm to 234 nm (+/−2 nm).

An excimer bulb assembly, with an excimer bulb, at least one integral captured reflector, and an integral filter such that the excimer bulb only emits substantial UV radiation between 200 nm and 230 nm, using a filter that passes light from about 200 nm to 234 nm (+/−2 nm).

An excimer bulb assembly, with an excimer bulb, at least one integral captured reflector, and an integral filter such that the excimer bulb only emits substantial UV radiation between 200 nm and 230 nm, using a filter that passes light from about 200 nm to 234 nm (+/−2 nm).

A Far UV C excimer bulb assembly including an excimer bulb, and at least two filters. The excimer bulb emits a path of light in at least two wavelengths. The at least two filters remove all wavelengths of light that are hazardous to human tissue. The at least two filters may each be placed perpendicular to the path of the light generated by the excimer bulb. The at least two filters may be a single, curved or cylindrical filter. The assembly may further include a mirror which may also be curved.

A Far UV C excimer bulb assembly including an excimer bulb, and at least two filters. The excimer bulb emits a path of light in at least two wavelengths. The at least two filters remove all wavelengths of light that are hazardous to human tissue. The at least two filters may each be placed perpendicular to the path of the light generated by the excimer bulb. The at least two filters may be a single, curved or cylindrical filter. The assembly may further include a mirror which may also be curved.

An optical volume measurement device includes a main body, a pair of photographic lenses, an optical distance measuring unit and an optical projecting unit. The photographic lenses are disposed on the main body. Each of the photographic lenses has an image acquiring area extended forwardly therefrom and captures images within the image acquiring area separately, and a resolution distance range is formed in front of each photographic lens. Each photographic lens identifies the image within the resolution distance range, and image acquiring areas are overlapped to form a measurement area within the resolution distance range. The optical projecting unit is disposed on the main body and forwardly project an optical alignment indicator in a projection area. The projection area is located in the measurement area within the resolution distance range.

An optical volume measurement device includes a main body, a pair of photographic lenses, an optical distance measuring unit and an optical projecting unit. The photographic lenses are disposed on the main body. Each of the photographic lenses has an image acquiring area extended forwardly therefrom and captures images within the image acquiring area separately, and a resolution distance range is formed in front of each photographic lens. Each photographic lens identifies the image within the resolution distance range, and image acquiring areas are overlapped to form a measurement area within the resolution distance range. The optical projecting unit is disposed on the main body and forwardly project an optical alignment indicator in a projection area. The projection area is located in the measurement area within the resolution distance range.

Embodiments described herein relate to a photonic apparatus for processing optical signals within an integrated optical pathway. The photonic apparatus a light perception device that perceives light from a surrounding environment of the apparatus. The photonic apparatus also includes an optical neural network (ONN) connected with the light perception device via an optical relay. The optical neural network configured to perform optical processing on the light according to a deep learning algorithm and using optical components.