35 results about "Diamond color" patented technology

The invention discloses an Ia type diamond color quick grading method based on a spectrum. The Ia type diamond color quick grading method based on the spectrum comprises that balanced compound light is emitted on a to-be detected diamond, and the compound light which is reflected through the to-be detected diamond is collected through an integrating sphere. After the light collected by the integrating sphere is split, a charge coupled device (CCD) detector is used for detecting so as to obtain a reflectance spectrum of the to-be detected diamond. After the reflectance spectrum of the to-be detected diamond is uniformized, a nitrogen absorption band is selected from the uniformized reflectance spectrum, and then the area of the nitrogen absorption band is calculated. Compared the area of the nitrogen absorption band with a standard threshold value file, the color of the to-be detected diamond is graded. According to the Ia type diamond color quick grading method based on the spectrum, the nitrogen absorption band is selected from the reflectance spectrum of the collected to-be detected diamond and the area of the nitrogen absorption band is calculated, then the area of the nitrogen absorption band is compared with the standard threshold value file, and so that the grading of the color of the diamond is achieved. The Ia type diamond color quick grading method based on the spectrum is simple in operation, quick and accurate in testing, high in consistency and capable of being widely used in the jewelry identification industry.

The invention relates to the field of nano-diamond color centers, in particular to a preparation method for implanting and doping nano-diamond transition metal color centers, comprising the following steps: growing a nano-diamond film on the surface of a quartz substrate to form a diamond substrate, and removing surface graphite from the diamond substrate Afterwards, ultrasonic cleaning is carried out; the nano-diamond colloid solution and transition metal powder are evenly mixed to prepare a mixed crystal planting liquid; the diamond substrate is placed in the prepared mixed crystal planting liquid, and ultrasonic crystal planting is performed to obtain a diamond substrate with uniform distribution of mixed crystal seeds Re-grow a nano-diamond film on the surface of the diamond substrate after the crystal planting is completed; then perform high-temperature annealing and remove the surface graphite treatment to obtain a relatively pure diamond with a transition metal color center. The invention implants evenly distributed mixed crystal seeds on the surface of the diamond substrate by means of ultrasonic crystal planting, introduces transition metal elements into the diamond growth environment, and conveniently and efficiently realizes the preparation of nano-diamond transition metal color centers.

The invention discloses a cast-in-place King Kong colored continuous blind road, which comprises components A and B, and the mass ratio of the A and B components is 1:4 to 6; the manufacturing method of the cast-in-place King Kong colored continuous blind road comprises the following Steps: S1, grass-roots treatment; S2, placing the tactile path mold; S3, mixing component A and component B according to the proportion, drying the surface, putting it into the above-mentioned tactile path mold, and pressing it flat; S4, after drying with step S3, Apply sealant to the surface. The tactile pavement mold can be laid on the base layer, and then the tactile pavement can be formed, which completely solves the need to reserve a place for the paving of traditional tactile paving bricks, thereby avoiding the trouble of secondary paving in pavement construction usually due to the barrier of traditional tactile paving bricks, and greatly reducing road construction. Labor costs and material loss, and shorten the construction period. Simultaneously, the manufacturing method of the cast-in-place diamond colored continuous blind walkway has the characteristics of short construction time, short curing time, good wear resistance and anti-slip effects, and strong antifouling ability.

The invention discloses a measurement instrument for removing influence of a size factor on color accuracy of a diamond. The measurement instrument comprises an integration ball with detecting equipment. A sample positioning device is mounted on an integration ball main body; and a sample positioning groove for bearing the diamond is arranged in the sample positioning device. According to the measurement instrument provided by the invention, the diamond color measurement is carried out by using an improved integration ball of an optical instrument, so that the problem of influencing the measurement accuracy by color difference, caused by different diamond sizes and different generated light ranges in the diamond color measurement, can be solved.

The invention relates to the field of diamond color centers, in particular to a method for preparing high-brightness silicon-vacancy color centers in nano-diamonds. Based on the gas doping method, tetramethylsilane gas is introduced into the microwave plasma chemical vapor deposition equipment to grow silicon-doped nano-diamond film on the substrate. The diamond grain size is less than 100nm, and the substrate is deposited by mechanical stripping or wet etching. The bottom is removed to obtain a self-supporting film and ground to obtain nano-diamond powder. The nano-diamond powder is annealed in an air atmosphere at 550-650 ° C for 5-10 minutes to obtain a silicon vacancy color center whose 738nm fluorescence peak is similar to that of diamond under room temperature excitation conditions. Raman peak intensity ratio is greater than 10. Thus, controllable doping of silicon atoms in nano-diamonds can obtain silicon vacancy color centers, and realize the preparation of silicon vacancy color centers that emit light with high brightness at room temperature. The nano-diamond prepared by the invention has very strong SiV luminescence performance, and can be used in the fields of bioluminescence labeling, high-precision temperature magnetic measurement and the like.

The invention discloses a diamond color center gyroscope based on Aharonov-Anandan geometric phase and an angular velocity measuring method. The gyroscope comprises a reflector, a permanent magnet, a substrate, a diamond sample, first microwave coils, second microwave coils, multiple area array CCDs, multiple filters, a third microwave coil, a first convex lens, a laser device, a polarizing sheet, a dichroscope and a second convex lens. The method for measuring angular velocity by means of the diamond color center gyroscope is further provided. The gyroscope has the advantages of being small in size, large in measuring range and the like, and therefore the gyroscope has potential application in producing ammunition.