5results about How to "Increase reflection strength" patented technology

The utility model provides an LED packaging support, which relates to the technical field of packaging supports, and comprises a support seat, a support bottom plate is arranged at the bottom of the support seat, a heat-conducting fin is embedded at the bottom of the support seat, a heat dissipation plate is embedded on the support bottom plate below the heat-conducting fin, a second heat dissipation hole is arranged at the top of the heat dissipation plate, and the second heat dissipation hole is communicated with the heat dissipation plate. Heat at the bottoms of the lamp beads is adsorbed through the heat conducting fins, at the moment, under the action of the heat dissipation plate, the heat on the heat conducting fins is discharged out of the support bottom plate under the action of the first heat dissipation holes and the second heat dissipation holes for heat exchange, the temperature on the support base is lowered, and further under the action of the heat conducting fins, the bottom plate of the support base is of a sealed structure; according to the utility model, external water vapor can be effectively prevented from slowly permeating into the lamp bead through the gap of the packaging bracket, so that the conditions of agglomeration of fluorescent powder in the fluorescent glue, easy glue crack and stripping of the glue body and lamp failure are avoided, and the temperature performance of the device in use is improved.

The utility model relates to the technical field of reflector plates, in particular to a reflector plate capable of improving reflection intensity and preparation equipment, which comprises a base layer and an auxiliary component, particles are coated on the surface of the base layer, the auxiliary component comprises a reflecting layer, a bonding layer and a protective film layer, and light guide points are printed on the reflecting surface of the reflecting layer. The reflector plate not only has a traditional reflecting function, but also has a light guide function when the reflecting surface of the reflecting layer is matched with the transparent plate for use, and compared with the high cost of the light guide plate formed by printing the light guide points on the back surface of the transparent plate in the prior art, the technical cost of printing the light guide points on the reflecting layer is lower, and the light guide plate has the light guide function. Meanwhile, the safety of the reflecting layer can be improved and the service life can be prolonged through the protective film layer, and the performance can be further enhanced by coating particles on the surface of the base layer, so that the structure of the reflecting sheet can be optimally designed, and the reflecting strength can be improved and the cost can be reduced.

The present invention relates to a device for measuring the lateral coverage of vegetation, and belongs to the technical field of vegetation ecological monitoring. The device for measuring the lateral coverage of vegetation includes: a camera bracket, a camera fixing crossbar, two camera height adjustment brackets, two hanging background curtain brackets, a curtain and a curtain supporting crossbar, a camera fixing crossbar is clamped between the two camera height adjustment brackets, a camera bracket is slidably arranged on the camera fixing crossbar, an adjustment mechanism for adjusting the camera fixing crossbar to a horizontal state is arranged on the two camera height adjustment brackets, a curtain supporting crossbar is rotatably connected between the two hanging background curtain brackets, a curtain is fixed on the curtain supporting crossbar, and vegetation for measuring the lateral coverage is arranged between the camera height adjustment bracket and the hanging background curtain bracket. Beneficial effects: It can provide a reference for photos, facilitate the calculation of the projection length of plant height and branch length, and the extraction and calculation of coverage, and can quickly and accurately measure the lateral coverage of vegetation.

This invention discloses a Fe3O4@SiO2 / polyurethane composite photonic crystal sensor, its preparation method, and its applications, belonging to the field of photonic crystal sensor technology. This invention achieves spatial modulation of the C6 fluorescence signal and enhancement of the local photonic field by spectrally matching the reflection band of the structured photonic crystal with the C6 emission band. This results in significant fluorescence quenching response even under extremely low PA concentrations, overcoming the limitation of low sensitivity in traditional fluorescence detection. Compared with traditional HPLC or conventional fluorescence spectroscopy methods, the photonic crystal enhancement system of this invention can improve PA detection sensitivity by approximately 3-4 orders of magnitude, while exhibiting good reproducibility and environmental stability.

The invention relates to the technical field of fire detection, and discloses an active and passive integrated photoelectric smoke-sensing fire detection alarm, which comprises a main body, the bottom of the main body is fixedly connected with a support frame, the top of the main body is in bolted connection with a connecting disc, and the bottom of the connecting disc is fixedly connected with an optical sensor. According to the invention, even if only a small amount of smoke particles are attached to the flexible reflecting plate, relatively obvious light intensity change can be caused, so that the sensitivity of the alarm is improved, the intensity of light signals received by the optical sensor can be effectively improved through the swinging of the flexible reflecting plate, and the sensitivity of the alarm is improved. Therefore, the optical sensor can detect smog more quickly and more accurately, so that the missing report rate is effectively reduced, the fire alarm timeliness is improved, and meanwhile, the detection capability of the detector on weak smog signals can be improved.