One or more systems, devices, apparatus, computer-implemented methods, and/or system-implemented methods are provided that can facilitate artificial weathering of an object. In one example, an artificial weathering system can comprise a radiation generator configured to apply a constant radiation level to one or more surfaces of an object, and a controller configured to individually control a surface temperature at the one or more surfaces during the irradiation. The controller can be configured to maintain an ambient temperature range, that would be observed in a non-artificial environment, of a chamber containing the object during the irradiation. In another example, an artificial weathering system can comprise a controller configured to control an effect of radiation received at one or more surfaces of an object by controlling airflow directed towards the one or more surfaces, where the airflow is controlled based upon a surface temperature at the one or more surfaces.

Accelerated outdoor exposure test equipment is disclosed. In the accelerated outdoor exposure test equipment, a specimen is moved for an accelerated outdoor test or an artificial radiation source to irradiate artificial light is moved at sunrise or sunset. Accordingly, the specimen is exposed to natural light such as sunlight during daytime and exposed to artificial light during nighttime.

An irradiance adjustment device comprising a radiation source and at least one neutral density filter disposed adjacent to the radiation source, wherein the neutral density filter can be moved into or out of the beam path of the radiation source.

A semiconductor device disclosed in an embodiment comprises: a light emitting unit comprising a light emitting structure layer which has a first conductivity type semiconductor layer, a second conductivity type semiconductor layer, and an active layer between the first conductivity type semiconductor layer and the second conductivity type semiconductor layer; and a sensor unit disposed on the light emitting unit, wherein the sensor unit comprises: a sensing material changing in resistance with light emitted by the light emitting unit; a first sensor electrode comprising a first pad portion and a first extension part extending from the first pad portion and contacting the sensing material; and a second sensor electrode comprising a first pad portion and a second extension part extending toward the first extension part from the second pad portion and contacting the sensing material. The sensor unit senses an external gas in response to the light generated from the light emitting unit.

The weather resistance testing apparatus includes a pressurizable container, a sample holder, and a light irradiation device having a light source. The pressurizable container has a quartz glass plate that can transmit light. The sample holder is disposed in the pressurizable container and can hold a sample. In this weather resistance testing apparatus, the light irradiation device is disposed outside the pressurizable container and irradiates the sample with light from the light source via the quartz glass plate.

An aging apparatus wherein a chamber has a cylindrical shape, a chamber shelf is rotatably disposed in an interior of the chamber, and the chamber shelf enables a plurality of aging target objects to be installed in the direction of a rotating shaft.

One or more systems, devices, apparatus, computer-implemented methods, and/or system-implemented methods are provided that can facilitate artificial weathering of an object. In one example, an artificial weathering system can comprise a radiation generator configured to apply a constant radiation level to one or more surfaces of an object, and a controller configured to individually control a surface temperature at the one or more surfaces during the irradiation. The controller can be configured to maintain an ambient temperature range, that would be observed in a non-artificial environment, of a chamber containing the object during the irradiation. In another example, an artificial weathering system can comprise a controller configured to control an effect of radiation received at one or more surfaces of an object by controlling airflow directed towards the one or more surfaces, where the airflow is controlled based upon a surface temperature at the one or more surfaces.

The present disclosure provides an ultraviolet light filter for use in photostability testing chambers, and in particular, filters that are designed to allow for air ventilation and maintenance of desired temperatures at the sample level during light exposure testing.

The present disclosure relates to a method and system for testing weather resistance of a photovoltaic module. The method includes sequential steps of: according to a predetermined appearance inspection standard, performing an appearance defect inspection on the photovoltaic module; testing a light attenuation rate of the photovoltaic module, and when the light attenuation rate is smaller than a predetermined attenuation threshold, under a predetermined test condition, checking an output power of the photovoltaic module; simulating a climate environment, and performing an environmental weather resistance test on the photovoltaic module; according to the appearance inspection standard, performing an appearance defect inspection on the photovoltaic module; testing the light attenuation rate of the photovoltaic module, and when the light attenuation rate is smaller than the attenuation threshold, checking the output power of the photovoltaic module under the predetermined test condition; and ending testing of weather resistance.

The apparatus and method for testing the ability of materials to protect photolabile materials provides an accurate measurement by directly observing the degradation level in a photolabile material. The apparatus is an assembly having primary and secondary cells and a light source. The primary and secondary cells are arranged in different configurations with respect to one another such that any light that reaches the photolabile materials must first go through the protective material under test. The method includes placing a protective material under test in the primary cell; placing a photolabile material in the secondary cell; subjecting the assembly to a light source for a predetermined amount of time; and removing and testing the photolabile material for degradation.