A dual color temperature vehicle lamp able to judge a driving environment based on invisible light includes a vehicle lamp body in the form of an LED. The vehicle lamp body includes a light emitting unit capable of performing a conversion of at least two kinds of color temperature light. A front end face of the vehicle lamp body is provided with at least one invisible light emitting source, at least one reflected light receiver, and a partition plate between the invisible light emitting source and the reflected light receiver. The invisible light emitting source is embedded in a recess at a front end of the vehicle lamp body. The vehicle lamp body includes a preamplifier circuit connected with the reflected light receiver, an MCU connected with the preamplifier circuit, and a wireless transceiver module connected with the MCU therein.

Multispectral images, including ultraviolet light and its interactions with ultraviolet light-interactive compounds, can be captured, processed, and represented to a user. Ultraviolet-light related information can be conveniently provided to a user to allow the user to have awareness of UV characteristics and the user's risk to UV exposure.

The invention provides systems and methods for wearable and tissue-mounted electronics for monitoring exposure of a subject or object to electromagnetic radiation, particularly electromagnetic radiation in the visible, ultraviolet and infrared portions of the electromagnetic spectrum. In some embodiments, the devices are purely passive devices where absorption of incident electromagnetic radiation by the device provides at least a portion of the power for the measurement of the radiant exposure or flux of the incident electromagnetic radiation. Devices of the invention may include near field communication components, for example, for enabling readout by an external device, such as a computer or mobile device.

Disclosed are a light emitting device configured to control the light output of a light emitting unit and a curing apparatus employing the same. The disclosed light emitting device may comprise: a main body having a window; a light source installed in the main body, for generating light of a predetermined wavelength and irradiating the generated light to the outside of the main body through the window; a photodetector installed in the main body, for receiving part of the light irradiated from the light source and monitoring the intensity of the light source; a light path converting unit installed between the light source and the photodetector, for transferring the part of the light irradiated from the light source to the photodetector; and an intensity adjusting unit for adjusting the intensity of the light source based on the signal detected from the photodetector.

A UV sensor head is provided capable of increasing sensing sensitivity. A UV sensor head 1 that converts ultraviolet light into visible light and guides the converted visible light toward an optical fiber 11 includes a wavelength conversion member having an inorganic matrix and phosphor particles dispersed in the inorganic matrix.

An excimer bulb assembly including an excimer bulb and a pass filter such that the excimer bulb assembly does not emit substantial UV radiation in wavelengths longer than 231 nm, 232 nm, 233 nm, 234 nm or 235 nm. The wavelengths are measured at an incident angle of zero (0) degrees to the filter plane. The pass filter is preferably constructed of a plurality of layers of hafnium oxide, and most preferably constructed of less than seventy five (75) layers of hafnium oxide. The excimer bulb, pass filter, and two electrical connectors may be adapted to form a cartridge which may be adapted to swivel along its main axis. The cartridge may further include a smart chip. The smart chip may retain and store information regarding the assembly and preferably retains hours of use of the excimer bulb.

The ultraviolet light that is harmful to the human body is efficiently detected to detect a risk. An ultraviolet ray receiving device includes a light source that emits light having a central wavelength of 220 nm or more and less than 230 nm, a filter that attenuates light in a wavelength band of 220 nm or more and less than 230 nm and transmits at least a part of a wavelength band of 230 nm or more and less than 320 nm, and a light receiving portion having sensitivity to both of light in a wavelength band of 220 nm or more and less than 230 nm and light in a wavelength band of 230 nm or more and less than 400 nm in which a band of light that transmits through the filter overlaps at least a part of a band that the light receiving portion has sensitivity.

A lithographic apparatus including a monitoring apparatus and an associated monitoring apparatus. The monitoring apparatus is configured for monitoring first radiation of a first wavelength. The monitoring apparatus has a first sensor apparatus including a diamond fluorescent material configured to absorb the first radiation and to emit second radiation being representative of the first radiation, the second radiation being of a second wavelength; and a second sensor apparatus configured to sense the second radiation.

An electronic device including a processor configured to receive a first radiation measurement and determine a skin surface condition information based on the first radiation measurement.

Provided are an optical receiver that can realize a reduction in the variation of sensitivity in the ultraviolet light region and a reduction in noise in the visible light region and the infrared light region, a portable electronic device, and a method of producing an optical receiver. The first light-receiving device (PD1) and the second light-receiving device (PD2) of the optical receiver (1) are each constituted by forming a second conductivity-type N-type well layer (N_well) on a first conductivity-type P-type substrate (P_sub), forming a first conductivity-type P-type well layer (P_well) in the N-type well layer (N_well), and forming a second conductivity-type N-type diffusion layer (N) in the P-type well layer (P_well). The P-type substrate P_sub, the N-type well layer (N_well), and the P-type well layer (P_well) are electrically at the same potential or are short-circuited.