2results about How to "Avoid light pollution" patented technology

The utility model is suitable for the technical field of photovoltaic board, and it aims at solving the technical problem of low power generation efficiency and easy light pollution in the prior art. The utility model provides a building facade decoration type power generation photovoltaic board, which comprises a main photovoltaic mounting plate and an auxiliary photovoltaic mounting plate, photovoltaic boards are arranged on the main photovoltaic mounting plate and the auxiliary photovoltaic mounting plate, the utility model is provided with the auxiliary photovoltaic mounting plate and the main photovoltaic mounting plate, under normal conditions, the auxiliary photovoltaic mounting plate slides downward under the action of its own weight, the telescopic supporting rod is pulled out, and the telescopic supporting rod abuts against the supporting block, so that a certain angle is formed between the auxiliary photovoltaic mounting plate and the main photovoltaic mounting plate. Not only can the photovoltaic boards on the main photovoltaic mounting plate and the auxiliary photovoltaic mounting plate realize double power generation effect, but also the reflection of the smooth surface on the photovoltaic board can be blocked, effectively avoiding the reflection of the light to the pedestrians on the road and causing light pollution.

The utility model provides a kind of optical fiber communication transceiver module for preventing light pollution, it is related to optical fiber communication technical field, including module body, the side surface of module body is equipped with protective box, the inside of protective box is equipped with connecting plate, the surface of connecting plate is equipped with connecting rod, the surface of connecting rod is equipped with rotating sleeve, the surface of rotating sleeve is equipped with protection assembly, the surface of connecting rod is equipped with torsion spring, protective box, protection assembly and torsion spring are used, when inserting optical fiber line, protection assembly is pushed away, so that optical fiber line is inserted into interface, due to the effect of torsion spring, protection assembly will be against the edge of optical fiber line, when plugging optical fiber line, due to the design of rubber plate, optical fiber line is extruded deformation to rubber plate, so that optical fiber line can have activity space, and then come out from protective box, after plugging, torsion spring drives protection assembly to reset, realize the convenient operation of plug and play, torsion spring makes protection assembly automatically shield mounting port by elastic return, prevent external light source and dust from entering light path, avoid light pollution.