32 results about "Foot-candle" patented technology

This invention generally relates to automated shade systems. An automated shade system comprises one or more motorized window coverings, sensors, and controllers that use one or more algorithms to control operation of the automated shade control system. These algorithms may include information such as: 3-D models of a building and surrounding structures; shadow information; lighting and radiation information; ASHRAE clear sky algorithms; log information related to manual overrides; occupant preference information; motion information; real-time sky conditions; solar radiation on a building; a total foot-candle load on a structure; brightness overrides; actual and / or calculated BTU load; time-of-year information; and microclimate analysis.

A flowering process-modeling candle with a rotated shadow, candlelight and music comprises a base, wherein a rotation mechanism is arranged in the base, a fixed holder is arranged on the base, a modeling barrel is arranged in the fixed holder, a tension spring is arranged between the modeling barrel and the fixed holder, candle inserting supporting plates are evenly distributed on the outer side of the modeling barrel, small candles are arranged on the candle inserting supporting plates, a hollow top cover is arranged at the top of the candling barrel, a candle inserting member is arranged on the hollow top cover, a main candle is arranged in the candle inserting member, binding line through holes are arranged on two sides of the candle inserting member, and binding lines are arranged in the binding line through holes, fixed on the candle inserting member, and connected with the rotation mechanism to enable the modeling barrel to tightly press the tension spring so that the candle inserting supporting plates are in folded states; a control panel, a light emitting diode (LED) lamp, a music player and an automatic power switch are arranged in the modeling barrel, wherein the LED lamp is installed on the control panel, the control panel is respectively connected with the music player and the automatic power switch, and a power interrupting inserting sheet is arranged on the fixed holder. The flowering process-modeling candle is simple in structure, low in manufacture cost, safe in usage, complete in functions, and good in usage effect.

The invention discloses a method for quantitatively analyzing blue light hazard and rhythm effect according to the color temperature of a light source. Firstly, a common and easily-obtained color temperature value of the light source is obtained; next, according to KB=1.48538*10<-7>*Tc-1.24574*10<-4>, KC=6.81334*10<-4>*Tc-0.50954, a blue light hazard factor and a rhythm factor of the tested lightsource are respectively calculated; and whether the bio-safety of light of the test light source is qualified or not is judged according to the condition that blue light hazard factor and the rhythm factor exceeding common white candle light by 10% are taken as safety thresholds (blue light hazard factor K<B-candle>=2.36689*10<-4>W / ml and the rhythm factor K<C-candle>=1.359), when the bio-safety is unqualified, the percentage exceeding the safety threshold is given. The simplified calculation method for the blue light hazard factor and the rhythm factor of the light source and the safety threshold of the two factors are given, and the method is simple in operation and clear in physical significance.

The invention discloses a method for producing series special waxes for candlelight. The method comprises: hydrorefining Fischer-Tropsch synthetic wax to obtain Fischer-Tropsch refined wax; separatingthe Fischer-Tropsch refined wax to obtain a plurality of distillate waxes; selecting the et distillate wax from the distillate waxes, heating the target distillate wax to completely melt, naturally cooling, carrying out programmed cooling to achieve a specified temperature so as to form a solid state with a crystal structure, heating to a first temperature, and collecting a first distillate oil melted at the first temperature at a constant temperature; continuously heating to a second temperature, and collecting a second distillate oil melted at the second temperature at a constant temperature so as to be used as a first candlelight wax product; and continuously heating to different preset temperatures, and collecting distillate oils melted at the preset temperatures at a constant temperature until the distillate wax is completely melted. According to the invention, the method does not require deoiling processing, and has characteristics of simple processing technology, low operationtemperature, low energy consumption and low investment cost, wherein the thermal stress of the wax is small so as to achieve the low color change of the product.

The invention discloses a method for analyzing a blue light hazard and a rhythm effect according to a color coordinate Z value of a light source. The method comprises the following steps of firstly, obtaining a color coordinate Z value of a 1931 CIE-XYZ standard colorimetric system according to spectral distribution data of a visible spectrum of 380-780 nm of a tested light source; respectively computing a blue light hazard factor and a rhythm factor of the tested light source according to (formula); and finally, judging whether biological safety of the tested light source is qualified or notby taking more than 10% of the blue light hazard factor and the rhythm factor of the candlelight of a common white candle as safety thresholds (the blue light hazard factor of the candlelight is (formula) and the rhythm factor is (formula)), and giving a percentage exceeding the safety thresholds when the biological safety is unqualified. The invention provides a simplified calculation method forthe blue light hazard factor and the rhythm factor of the light source and the safety thresholds of the two factors, the operation is relatively simple, and the physical significance is clear.

The invention provides a light emitting apparatus. The light emitting apparatus includes: a light source; an electronic driver for driving the light source to emit light; a light beam shaping elementused for shaping a light beam of light emitted by the light source; a beam angle adjustment mechanism configured to change a positional relationship between the light source and the beam shaping element; and a sensor configured to provide a signal indicative of a setting of the beam angle adjustment mechanism. The electronic driver is configured to adjust the luminous flux emitted by the light source according to a signal provided by the sensor. The light emitting apparatus can keep the candlelight power of the central light beam of the emitted light constant when the angle of the light beam is changed.