6results about How to "Guaranteed optical properties" patented technology

The present application can provide an optical modulation device, an optical device including the same, or a manufacturing method, which can stably maintain designed optical characteristics even after a packaging process in which pressure is applied, such as an autoclave process. The present application can also provide an optical modulation device, an optical device including the same, or a manufacturing method, which can stably maintain an orientation state of an optical modulation layer while effectively securing adhesion between an upper substrate and a lower substrate.

The invention discloses a PMMA (polymethyl methacrylate) material atomic vapor pool for low-frequency electric field measurement and a manufacturing method thereof, the atomic vapor pool comprises a pool body made of PMMA material and a convex opening hermetically arranged on the pool body, the convex opening is communicated with an inner cavity of the pool body, and the convex opening is used for vacuumizing the interior of the pool body and filling alkali metal cesium atoms into the pool body. The structure is reliable, the cell body structure is made of a specific PMMA material, the conductivity of the PMMA material is small after cesium atoms are adsorbed, the low-frequency electric field shielding effect caused by adsorption of the cesium atoms is reduced under the condition that the optical property of the material and the influence of the electric field are not changed, the shielding effect is effectively reduced, and measurement of the space low-frequency electric field is achieved.

The object of the present invention is to provide a polarizer group in which the warping of a liquid crystal panel in a high temperature and high humidity environment is suppressed. The polarizer group of the present invention comprises: a first polarizer (21) with a thickness of 200 μm or more and 300 μm or less arranged on one side of a liquid crystal unit (10), and a second polarizer (22) with a thickness of 150 μm or less arranged on the other side of the liquid crystal unit. The first polarizer has: a phase difference layer (32) with a thickness of 100 μm or more, a polarizer (31) with a thickness of 10 μm or less arranged on one side of the phase difference layer, and an adhesive layer (33) arranged on the other side of the phase difference layer. The first polarizer is laminated on the liquid crystal unit via the adhesive layer.

The invention discloses a method for preparing super-long phosphorescent monodisperse SiO2 particles on a large scale. According to the method, firstly, an improved sol-gel method # imgabs0 # is adopted to introduce small organic molecules as a dopant into SiO2 particles, so that the interior of SiO2 has additional oxygen and nitrogen defect states, and then the prepared small organic molecule doped SiO2 particles are subjected to high-temperature calcination to obtain a fluorescent defect center and a stable excitation triplet state. The method has the advantages of low cost, high yield and large-scale preparation which is convenient to operate, and the prepared material has the advantages of long-life phosphorescence, high stability and low toxicity. Benefited from the characteristics of regular morphology and lasting luminescence, the material has wide application prospects in the fields of multi-mode information encryption, multi-optical response intelligent windows, photonic materials, photonic coatings and the like.

The present application provides a structure capable of easily imparting a hydrophobic function while maintaining the optical properties of a sensor device, and easily replacing the sensor device. A structure 100 mounted to the outer surface of a sensor device 400 having a curved surface shape on the outer surface includes a substrate 101, and a fine concavo-convex structure layer provided on both surfaces of the substrate 101, the fine concavo-convex structure layer having a first fine concavo-convex structure layer 102 on the side of the sensor device 400, and a second fine concavo-convex structure layer 103 on the side opposite to the side of the sensor device 400, the second fine concavo-convex structure layer 103 having hydrophobicity, the structure 100 having a three-dimensional shape following the curved surface shape of the outer surface.

Provided is a composition for forming a resist underlayer film, which satisfies various other characteristics such as curability, the amount of sublimate generated, planarization, and optical characteristics (reflection suppression during exposure) in addition to etching resistance and heat resistance. A composition for forming a resist underlayer film, the composition containing a novolac resin and a solvent, the novolac resin containing a structural unit (A) having an aromatic ring, the structural unit (A) including one or more structural units represented by formula (A), R1 being a hydrogen atom or a specific substituent, R2 being an optional specific substituent, and R3 being a hydrogen atom or a specific substituent. In the novolac resin, at least some of R1 and R2 are substituents having an alkynyl chain having 2-10 carbon atoms, n represents the number of substituents R2, when there are a plurality of n, the plurality of R2 may be the same as or different from each other, and * represents a linking bond. # imgabs0 #