Abstract:
An optical sensor and an electronic device having an optical sensor. The optical sensor includes: an optical waveguide containing a photochromic material; a light emitter that emits visible light to be incident on the optical waveguide; and a light receiver that detects the visible light emitted from the light emitter and progressing through the optical waveguide. A transmittance of the optical waveguide in relation to the visible light may be changed by the photochromic material as the optical waveguide is exposed to UV light. The optical sensor and the electronic device having the same may be variously implemented according to exemplary embodiments.
Abstract:
The invention relates to a sensor for determining the energy of radiation of a type that is capable of converting oxygen into ozone, and to a use of such a sensor. According to the invention, the sensor contains a measuring chamber (1) that can be transirradiated by the radiation and has a gas inlet (4) and a gas outlet (6), means (8) for feeding an oxygen containing gas (9) into the measuring chamber, via the gas inlet, and for discharging the gas via the gas outlet, one ozone sensor element (10) for measuring the ozone content of the gas (9a) located in the measuring chamber or discharged via the gas outlet, and evaluating means (12) for determining the radiant energy from the measured ozone content. The sensor can be used, for example, to determine radiant energy in an optical imaging system operating with the radiation. Use, for example, in microlithography projection exposure systems.
Abstract:
A method of calculating a quantity of light by measuring, by using an adhering force measuring unit (71), the adhering force of an ultraviolet light-curable tape (11 or 21) relying upon the quantity of ultraviolet light with which the ultraviolet light-curable tape is irradiated from an ultraviolet light irradiation unit (61), and calculating, by using a calculation unit, the quantity of ultraviolet light corresponding to a predetermined adhering force, from the measured adhering force of the ultraviolet light-curable tape, and a device therefor. The predetermined adhering force may have been stored in advance in the storage unit or the predetermined adhering force may be determined in advance relying upon at least either one of the kind of the ultraviolet light-curable tape or the elapsed time of the ultraviolet light-curable tape. Then, the quantity of light necessary for the ultraviolet light-curable tape that is used is automatically calculated to avoid a problem caused by an insufficient quantity of light or an excess quantity of light.
Abstract:
An optical sensor and an electronic device having an optical sensor. The optical sensor includes: an optical waveguide containing a photochromic material; a light emitter that emits visible light to be incident on the optical waveguide; and a light receiver that detects the visible light emitted from the light emitter and progressing through the optical waveguide. A transmittance of the optical waveguide in relation to the visible light may be changed by the photochromic material as the optical waveguide is exposed to UV light. The optical sensor and the electronic device having the same may be variously implemented according to exemplary embodiments.
Abstract:
A method of calculating a quantity of light by measuring, by using an adhering force measuring unit (71), the adhering force of an ultraviolet light-curable tape (11 or 21) relying upon the quantity of ultraviolet light with which the ultraviolet light-curable tape is irradiated from an ultraviolet light irradiation unit (61), and calculating, by using a calculation unit, the quantity of ultraviolet light corresponding to a predetermined adhering force, from the measured adhering force of the ultraviolet light-curable tape, and a device therefor. The predetermined adhering force may have been stored in advance in the storage unit or the predetermined adhering force may be determined in advance relying upon at least either one of the kind of the ultraviolet light-curable tape or the elapsed time of the ultraviolet light-curable tape. Then, the quantity of light necessary for the ultraviolet light-curable tape that is used is automatically calculated to avoid a problem caused by an insufficient quantity of light or an excess quantity of light.
Abstract:
An ultraviolet radiation sensor that indicates a predetermined cumulative exposure to ultraviolet radiation is disclosed. The presently preferred sensor comprises a membrane, a base, an ultraviolet degradable adhesive, and an indicating mechanism. The ultraviolet degradable adhesive adheres a portion of the membrane to the base, thereby maintaining the membrane in a biased state. The ultraviolet degradable adhesive fails when a predetermined cumulative exposure has been attained. Upon failure of the adhesive, the membrane reflexively restores itself to an unbiased state and activates the indicating mechanism. In a preferred embodiment of the invention, the sensor is worn by a user to indicate when the skin of the user has been exposed to excessive ultraviolet radiation.
Abstract:
A matrix with a biologically active substance is exposed to UV radiation. The biologically active substance is selected to initiate photoconversions originating vitamin D synthesis. An optical parameter of the biologically active substance is being changed under UV irradiation. Change of the optical parameter is measured, thus measuring the amount of UV radiation that has caused the vitamin D synthesis occurred through photoconversion. Measuring occurs by way of a dosimeter.
Abstract:
A matrix with a biologically active substance is exposed to UV radiation. The biologically active substance is selected to initiate photoconversions originating vitamin D synthesis. An optical parameter of the biologically active substance is being changed under UV irradiation. Change of the optical parameter is measured, thus measuring the amount of UV radiation that has caused the vitamin D synthesis occurred through photoconversion. Measuring occurs by way of a dosimeter.