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30results about How to "Rich experience" patented technology

Optical anti-counterfeiting device based on nanocrystal cellulose

The invention discloses an optical anti-counterfeiting device based on nanocrystal cellulose. The optical anti-counterfeiting device based on the nanocrystal cellulose comprises a nanocrystal cellulose film adhering to a double-sided adhesive film. A preparation method of the optical anti-counterfeiting device comprises the steps that first, a bleached fibrous material and sulfuric acid with the concentration of 64wt% are stirred at 45 DEG C for 90 min to 120 min for hydrolytic acidification, and ten-fold deionized water is added to terminate the reaction; second, centrifugal separation is carried out, concentrated suspension at the bottom is collected, the suspension is dialyzed through a dialysis membrane with the molecular weight ranging from 12000 dalton to 14000 dalton till the solution pH is equal to seven, the dialyzed suspension is made into a colloidal solution with the weight concentration ranging from 0.5wt% to 8wt% through ultrasonic dispersion; third, a fluorescent brightener is added in the colloidal solution, the mixture is evenly mixed, and the concentration of the fluorescent brightener ranges from 50 ppm to 150 ppm; fourth, the obtained colloidal solution is placed on a polystyrene petri dish and aired at room temperature so that the nanocrystal cellulose film can be obtained, and the nanocrystal cellulose film is bonded to a double-sided adhesive tape base material. The optical anti-counterfeiting device has multiple complicated dominance and recessiveness anti-counterfeiting characteristics, on-site recognition can be carried out by a simple means, and the optical anti-counterfeiting device cannot be easily counterfeited by other people.
Owner:张玉平

Digital panorama based three-dimensional indoor ranging system and device

The invention discloses a digital panorama based three-dimensional indoor ranging system and device. The digital panorama based three-dimensional indoor ranging system comprises a panoramic client and a panoramic server; the panoramic client is used for displaying a digital panorama for a user, capturing coordinates of two points on the digital panorama and transmitting the coordinates of the two points on the digital panorama to the panoramic server, wherein the two points on the digital panorama are selected by the user; the panoramic server is used for transforming the coordinates of the two points on the digital panorama into coordinates of two corresponding points on an indoor space presented by the digital panorama and calculating the distance between the two points on the indoor space according to the coordinates of the two points on the indoor space. According to the digital panorama based three-dimensional indoor ranging system and device, the actual distance between any two points in the digital panorama on the actual indoor space can be accurately calculated and accordingly the accurate ranging on the indoor space in the digital panorama is implemented and the user can fully feel and understand the distance and size information of the indoor space displayed through the digital panorama conveniently.
Owner:北京一拍科技有限公司

Electronic cigarette

The invention relates to an electronic cigarette, which comprises a main unit and an atomizer, wherein the main unit comprises a shell, a battery, a circuit board and a switch; the battery and the circuit board are both arranged in the shell; the edge of the outer wall of the shell is of an arc shape; the inner wall of the shell is provided with a framework integrated with the wall surface of theshell; the framework is provided with a battery jar; a battery is arranged in the battery jar; the circuit board is matched with the inner wall of the shell and the battery to form an arc-shaped circuit board structure; the battery, the switch and the atomizer are all connected with the circuit board; and the battery supplies power to the atomizer. The edge of the outer wall of the shell of the electronic cigarette is designed as the arc shape, so that diversified design of the appearance of the electronic cigarette is facilitated, and a user can have more choices and a better experience; thecircuit board in the main unit is of the arc-shaped structure matched with the shell and the battery, and occupies a relatively small space, so as to achieve a reasonable and perfect layout of electronic elements inside the main unit of the electronic cigarette; and a space and materials for the external shell of the electronic cigarette are relatively reduced, so that light weight and minimization of the electronic cigarette are facilitated.
Owner:SHENZHEN YOUME NETWORK TECH CO LTD

Three-dimensional indoor ranging system and equipment based on digital panorama

The invention discloses a digital panorama based three-dimensional indoor ranging system and device. The digital panorama based three-dimensional indoor ranging system comprises a panoramic client and a panoramic server; the panoramic client is used for displaying a digital panorama for a user, capturing coordinates of two points on the digital panorama and transmitting the coordinates of the two points on the digital panorama to the panoramic server, wherein the two points on the digital panorama are selected by the user; the panoramic server is used for transforming the coordinates of the two points on the digital panorama into coordinates of two corresponding points on an indoor space presented by the digital panorama and calculating the distance between the two points on the indoor space according to the coordinates of the two points on the indoor space. According to the digital panorama based three-dimensional indoor ranging system and device, the actual distance between any two points in the digital panorama on the actual indoor space can be accurately calculated and accordingly the accurate ranging on the indoor space in the digital panorama is implemented and the user can fully feel and understand the distance and size information of the indoor space displayed through the digital panorama conveniently.
Owner:北京一拍科技有限公司
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