A camera attachment for measuring a temperature of a surface, and related methods of measuring the temperature of the surface, employ a temperature reactive material that is thermally coupled with the surface and imaged to provide image data of the temperature reactive material that is analyzed to measure the temperature. A camera attachment for measuring a temperature of a surface includes a distal surface configured to be thermally coupled with the surface, a frame configured to be coupled with a camera that has a field of view, and a temperature reactive material coupled with the frame and thermally coupled with the distal surface. The frame positions the temperature reactive material within the field of view of the camera so that an image captured by the camera includes at least a portion of the temperature reactive material.

A camera attachment for measuring a temperature of a surface, and related methods of measuring the temperature of the surface, employ a temperature reactive material that is thermally coupled with the surface and imaged to provide image data of the temperature reactive material that is analyzed to measure the temperature. A camera attachment for measuring a temperature of a surface includes a distal surface configured to be thermally coupled with the surface, a frame configured to be coupled with a camera that has a field of view, and a temperature reactive material coupled with the frame and thermally coupled with the distal surface. The frame positions the temperature reactive material within the field of view of the camera so that an image captured by the camera includes at least a portion of the temperature reactive material.

A device for assessing sunscreen coverage on a person includes a casing a lens assembly extending from about a front facing surface of the casing and allowing transmissivity to light energy in a wavelength range of about 300 to about 400 nm. A filter is in optical communication with the lens assembly and having a high optical density above about 390 nm and a low optical density below about 390 nm. A sensor is in optical communication with the filter, the sensor having a signal/noise ratio that is greater than about 36 db. A controller is configured for receiving input from a user to control the device. A display screen may be in communication with a controller for displaying an image associated with the filtered light.

The present disclosure relates, according to some embodiments, to a method of determining a quantitatively measured photoprotection of a photoprotective composition, the method comprising: (a) distributing the photoprotective composition in a position in between a drawdown bar and at least one substrate to produce a distributed photoprotective composition; (b) drawing down the distributed photoprotective composition to a thickness on at least one substrate to produce a drawn down sample film; (c) drying the drawn down sample film to produce a dried sample film; (d) measuring a UV absorption of the dried sample film to produce a UV absorption spectrum; (e) determining the quantitatively measured photoprotection of the photoprotective composition from the UV absorption spectrum.

The present disclosure relates, according to some embodiments, to a method of determining a quantitatively measured photoprotection of a photoprotective composition, the method comprising: (a) distributing the photoprotective composition in a position in between a drawdown bar and at least one substrate to produce a distributed photoprotective composition; (b) drawing down the distributed photoprotective composition to a thickness on at least one substrate to produce a drawn down sample film; (c) drying the drawn down sample film to produce a dried sample film; (d) measuring a UV absorption of the dried sample film to produce a UV absorption spectrum; (e) determining the quantitatively measured photoprotection of the photoprotective composition from the UV absorption spectrum.

A detecting device for indicating the intensity of a predetermined type of radiation present in electromagnetic radiation incident on the detecting device can include: a filter element for filtering the incident electromagnetic radiation, wherein the filter element is configured to filter off electromagnetic radiation with a wavelength of above 590 nm from the incident electromagnetic radiation; a converging element configured to increase the density of photons of the predetermined type of radiation present in the incident electromagnetic radiation; and a sensor element of material arranged to receive the incident electromagnetic radiation that has passed through the filter element and the converging element for indicating the intensity of the predetermined type of radiation present in the incident electromagnetic radiation by change of the color of the sensor element of material, wherein the material is represented by the following formula: (M)8(MM)6O24(X,S)2:M (formula (I)).

A detecting device for indicating the intensity of a predetermined type of radiation present in electromagnetic radiation incident on the detecting device can include: a filter element for filtering the incident electromagnetic radiation, wherein the filter element is configured to filter off electromagnetic radiation with a wavelength of above 590 nm from the incident electromagnetic radiation; a converging element configured to increase the density of photons of the predetermined type of radiation present in the incident electromagnetic radiation; and a sensor element of material arranged to receive the incident electromagnetic radiation that has passed through the filter element and the converging element for indicating the intensity of the predetermined type of radiation present in the incident electromagnetic radiation by change of the color of the sensor element of material, wherein the material is represented by the following formula: (M)8(MM)6O24(X,S)2:M (formula (I)).

Described herein are systems and methods for coupling environmental hazard detection and actuation of a wearable chemical sensor at a molecular level. The chemical sensor may be a wearable chemical sensor implemented as a powder, cream, lacquer or other wearable construct. The wearable chemical sensor may detect exposure to various environmental hazards and provide an analog means (e.g., a range of color changes) of indicating the level of environmental hazard exposure.

Described herein are systems and methods for coupling environmental hazard detection and actuation of a wearable chemical sensor at a molecular level. The chemical sensor may be a wearable chemical sensor implemented as a powder, cream, lacquer or other wearable construct. The wearable chemical sensor may detect exposure to various environmental hazards and provide an analog means (e.g., a range of color changes) of indicating the level of environmental hazard exposure.

A workpiece unit includes a wafer, a tape stuck to the wafer, and an annular frame to which an outer circumferential edge of the tape is stuck and which has an opening defined centrally therein. The wafer is disposed in the opening in the annular frame and supported on the annular frame by the tape. An irreversible ultraviolet radiation detecting seal that discolors when irradiated with an ultraviolet radiation as an external stimulus is stuck to the annular frame.