6 results about "Back reflector" patented technology

The utility model belongs to the technical field of seed germination observation, especially is involved in an agricultural seed germination observation box. The technology includes the box, be provided with a plurality of baffle in the box, the baffle divides the box into a plurality of for placing the compartment of seedling tray, the top of box is covered with the installation shell, is equipped with a plurality of first through -hole that communicates with the installation shell connection in the box, two pieces of reflector plate are fixed in the top of installation shell, the left and right inner side wall of installation shell all are equipped with the light source board, the front reflector plate is used for the light of left light source board reflection into the box, the back reflector plate is used for the light of right light source board reflection into the box. Start light source board, two pieces of light source board emit light, the light is reflected and irradiated into the compartment through the reflector plate in the installation shell, only two pieces of light source board are used in a box, compared with the light source board of each compartment of existing installation reduces the cost. Through the light reflection and the heat conduction principle of water to improve the automation of seed germination observation box.

An optical system includes a backlight configured to emit light from an emission surface thereof, and a front reflector. The backlight includes at least one light source configured to emit a first light having at least a first wavelength. The front reflector is disposed on a back reflector and defines a recycling optical cavity therebetween. The front reflector defines at least one opening therein. When a test material is disposed in the recycling optical cavity, the test material is configured to emit a second light having at least a second wavelength in response to a stimulus. The emitted second light exits the optical system through the at least one opening of the front reflector after being recycled in the recycling optical cavity. The recycling affects an optical intensity of the exiting light.

An optical system includes a front optical film and a back reflector defining a light recycling optical cavity therebetween. The optical cavity is configured to receive a test sample. The optical system includes a light source disposed on the front optical film side of the optical cavity and configured to emit first and second lights having respective intensities I1b and I1g and respective first and second wavelengths toward the optical cavity, such that when the test sample is disposed in the recycling optical cavity and the emitted first and second lights are recycled in the optical cavity while being at least partially absorbed by the test sample, at least portions of the recycling emitted first and second lights exit the optical cavity through the front optical film as respective exiting first and second lights having respective optical intensities I2b and I2g. I2g / I1g is greater than I2b / I1b by at least 10%.

Frame for supporting a head-mounted display on a user, comprising: a first portion positioned for a first user's eye, comprising: a first casing for optical components, the first casing comprising: a first casing reflector mount for a first casing reflector; a first back mount for a back reflector, the back mount defining a plane for the back reflector and a corresponding back reflector axis perpendicular to the plane; a first front mount for a combiner, the front mount defining a plane for the combiner and a corresponding combiner axis perpendicular to the plane; the back mount positioned to position the back reflector in close proximity to the user's first eyebrow; the casing comprising: a second portion positioned for the other eye, comprising: a second casing for a second optical component, the second casing comprising: a second casing reflector mount for a second casing reflector; and A second back mount for the back reflector, the back mount defining a plane for the back reflector and a corresponding back reflector perpendicular to the plane; a second front mount for the second combiner for the other eye, the front mount defining a plane for the combiner and a corresponding combiner axis perpendicular to the plane; the second back mount is positioned to position the second back reflector close to the user's other eyebrow, and as a result the second casing extends from the inner end close to the other eyebrow. A frame is disclosed comprising: a second portion having an outer end adjacent to the other temple of the ser; a bridge member having an extension between the first casing and the second casing, thereby defining a frame transverse axis, and being positioned to be mounted substantially parallel to the user's cross-section; the frame transverse axis having an X-axis perpendicular thereto for alignment with the user's forward-looking axis when mounted, and each of the back mounts and each of the front mounts extending downward from the bridge member.

The invention provides a laminated cell and a preparation method thereof, and the laminated cell comprises a bottom cell which at least comprises a substrate and a back reflector structure located at one side of the substrate, the back reflector structure comprises a first transparent conductive layer, a barrier layer, a first anti-reflection layer and a first metal layer, the barrier layer is located at one side, far away from the substrate, of the first transparent conductive layer, and the first anti-reflection layer is located at the other side of the first transparent conductive layer; the first anti-reflection layer is located on the side, away from the first transparent conductive layer, of the barrier layer, and the first metal layer is located on the side, away from the substrate, of the first anti-reflection layer and / or the side, away from the substrate, of the first transparent conductive layer and makes contact with the first transparent conductive layer. The middle layer is located on the side, away from the back reflector structure, of the substrate; and the perovskite top cell is positioned on one side, far away from the bottom cell, of the middle layer. The stability of the laminated cell can be improved.

There is provided a microfluidic chip for sensing an analyte in a sample by colorimetry. The microfluidic chip comprises: an inlet adapted to receive the sample; an incubation chamber having an incubation chamber inlet fluidly connected to the inlet downstream thereof, to incubate the analyte in the sample; a filter barrier fluidly connected to the incubation chamber, downstream of the incubation chamber inlet; a sensing chamber fluidly connected to the incubation chamber, downstream of the filter barrier, the sensing chamber having a plasmonic nanosurface, the plasmonic nanosurface including nanostructures protruding from the plasmonic nanosurface, the nanostructures having a size that is smaller than that of the diffraction limit of light, the nanostructures having a metallic layer that is plasmon-supported on top of a back reflector layer; and an outlet fluidly connected to the sensing chamber downstream thereof.