5 results about "Lux" patented technology

This invention discloses a method for cultivating Spirulina, relating to the field of microalgae biotechnology, aiming to overcome the shortcomings of existing technologies in terms of low Spirulina biomass yield and protein content. The method includes: in a first cultivation stage, inoculating Spirulina into a basal culture medium and conducting photoautotrophic cultivation at a light intensity of 5000-10000 lux until the optical density (OD560) reaches 0.6-0.8; in a second cultivation stage, reducing the light intensity to 1000-3000 lux and adding calcium alginate-encapsulated sodium bicarbonate microspheres, cultivating until the algal cell dry weight reaches 1.5-2.0 g / L; in a third cultivation stage, increasing the light intensity to 8000-12000 lux and adding sodium nitrate slow-release granules supported on anion exchange resin. This invention can achieve a synergistic increase in Spirulina biomass dry weight and protein content.

The application discloses a kind of based on AR-HUD's anti-car-sickness method, device, equipment and storage medium, it is related to the technical field of vehicle;A kind of based on AR-HUD's anti-car-sickness method includes: obtaining initial ambient light intensity and AR picture display state;If the initial ambient light intensity is greater than or equal to 5000 lux, and the AR picture display state is non strong light state, according to the AR picture display state, AR picture parameter is adjusted to high;If the initial ambient light intensity is less than or equal to 1000 lux, and the AR picture display state is non weak light state, according to the AR picture display state and the initial ambient light intensity, AR picture parameter is adjusted to low.In strong light state, the brightness of AR picture reaches higher brightness, and contrast ratio and saturation degree all need to reach higher proportion, in weak light state, the brightness of AR picture reaches lower brightness, and contrast ratio and saturation degree all need to reach lower proportion, so that adjusted AR picture can be adapted to the environment where vehicle is located, reduce the probability of user car sickness.

The system aims to improve usability by ensuring the desired illumination level for each area through simple operation. [Solution] The device comprises an arm, a connecting part, and a pair of lighting units, the pair of lighting units being rotatable to be in at least a first and second configuration with different positional relationships, the first and second regions being areas with radii of 30 cm and 50 cm, respectively, centered on a reference position on the work surface, and the third region being a square area with sides of 30 cm, with the reference position on the work surface as one vertex, the first region being illuminated with 1000 lux or more by the pair of lighting units in the first configuration and the second region being illuminated with 500 lux or more, and the third region being illuminated with 1500 lux or more by the pair of lighting units in the second configuration.

The application provides a camera-based light sensing method, system, electronic device and storage medium. An ambient light source parameter in a current environment is obtained based on a camera in a smart device. A standard ambient brightness of the current environment is obtained. A target current ambient brightness of the current environment is determined according to the standard brightness and the current ambient brightness. A target fitting equation coefficient matching the color temperature of the current environment is determined from a plurality of fitting equation coefficients. A target fitting equation is generated according to the target fitting equation coefficient and an initial fitting equation. The plurality of fitting equation coefficients are obtained by fitting sample environment data and the initial fitting equation. LUX in the current environment is predicted according to the target fitting equation and the target current ambient brightness. The luminosity of the screen of the smart device is adjusted according to the LUX value in the current environment. The application realizes the light sensing function of the smart device by using the camera, thereby achieving the purpose of saving cost.

This invention discloses a doped organic room-temperature phosphorescent material with both high brightness and ultra-long lifetime, its preparation method, and its application, relating to the field of organic room-temperature phosphorescent materials technology. The series of phosphorescent emitters DCMCy-1 and DCMCy-3 provided by this invention have novel molecular structures; an organic room-temperature phosphorescent material includes a phosphorescent emitter and a 5-methoxynaphthone triplet-state sensitizing matrix. Through molecular engineering, this invention introduces dicyanomethylene groups and intramolecular weak interactions into the phosphorescent emitter structure to enhance its rigidity and suppress non-radiative decay from within the molecule; by selecting a quasi-planar, special triplet-state photosensitive matrix, it enhances triplet energy transfer between the matrix and the phosphorescent emitter while suppressing non-radiative decay from outside the molecule, resulting in an organic room-temperature phosphorescent material with both ultra-long lifetime and high brightness, which is applied to a visible fluorescent / phosphorescent dual-anti-counterfeiting icon under an ambient light illuminance of 50 lux.