13 results about "Red light" patented technology

A light source locating and visualization apparatus comprises one or more than one LEDs capable to radiate a red light source with a wavelength of 600˜650 nm to locate superficial veins or specific structures; and a method of locating superficial veins with a LED light source comprises to proceed a skin-tightly radiating by using the source locating and visualization apparatus to emitting a red LED light source with wavelength of 600˜656 nm; to produce a lateral scattering and illumination effect by way of emitting red LED light source penetrating through a fat structure to cause reflection and scattering; and to locate superficial veins by naked eyes due to said superficial veins capable of absorbing red light spectrum easily and appearing as a located blood vessel shadow under the lateral scattering and illumination effect; therefore, physicians and nurse are capable by naked eyes to see the size, curve, and bifurcation of subcutaneous blood vessels visually and then select an appropriate injection position along the blood vessel for intravenous puncture easily.

The invention discloses a high-color-rendering-index white light organic light-emitting device and a preparation method therefor. The device comprises a substrate, a positive electrode layer, an organic functional layer and a negative electrode layer from the bottom up in sequence; the organic functional layer comprises a hole transport layer, a blue light emitting layer and an electron transport layer from the bottom up in sequence; the blue light emitting layer is formed by the following two manners: (1) a host-guest doped structure formed by a host material doped with a blue fluorescent light emitting material, wherein the doping mass ratio of the blue fluorescent light emitting material is 1-20%; and (2) a non-doped structure which is formed by a single-layer host material close to the hole transport layer and a singe-layer blue fluorescent light emitting material close to the electron transport layer. According to the device, only one kind of the blue fluorescent light emitting material is adopted to generate blue light; in combination with the hole transport layer and the host material to form electroplex to generate orange light and red light so as to realize white light emission with high color rendering index; and meanwhile, the device structure and the preparation process are simplified, the production cost is lowered, and the spectrum stability of the device is improved.

The invention discloses multifunctional glasses integrating myopia prevention, beautifying, memory improvement and massage functions. The multifunctional glasses comprise a shell and a control device arranged in the shell, the shell consists of a front glasses shell and a back glasses shell, and a high-illumination light supplementing device and red light transillumination devices which are connected with the control device electrically are arranged in the back glasses shell. The multifunctional glasses integrating the myopia prevention, beautifying, memory improvement and massage functions has the advantages that the multifunctional glasses have the eyeball high-illumination light supplementing device, front peripheral retina defocusing lenses, eye movement guide devices, a periocular skin red light transillumination function and the like and eye care functions such as a visual patch function, vibratory massage and hot compress.

The invention relates to an organic light emitting device. The organic light emitting device comprises a red-light layer, wherein the red-light layer comprises a subjective material and an objective material, the subjective material comprises a first subjective material and a second subjective material, the first subjective material and the second subjective material can form an exciplex compound,and the red-light layer is fabricated according to the following steps of mixing the first subjective material and the second subjective material to form a subjective evaporation source and evaporating the subjective evaporation source and an objective evaporation source to form the red-light layer. In the organic light emitting device, the exciplex compound is formed, the doping concentration ofthe objective material can be reduced by an FRET energy transfer effect, the stability of the device can be improved, the light emitting efficiency is improved, and the efficiency roll-off phenomenonis effectively prevented; and the subjective material is mixed in advance, so that the complexity and the cost of evaporation equipment are reduced, the difficulty of an evaporation process is reduced, the proportion of the first subjective material and the second subjective material is easy to control, and the problem of proportion imbalance is prevented. The invention also discloses a fabrication method of the organic light emitting device and a display device.

The invention belongs to the technical field of streetlamps, and particularly relates to a streetlamp capable of monitoring illegal activities on roads. The streetlamp comprises a lamp cover, an illuminating lamp and a lamp pole. A sampling monitor is arranged in the middle of the upper half part of the front face of the lamp pole, and a speed measurement device is arranged in the middle of the front face of the lamp pole. The speed measurement device and the sampling monitor are in series connection and are electrically connected with a power source through a control chip. A buzzer is arranged on the lower half part of the front face of the lamp pole and is connected with adjacent traffic lights through the control chip. When the traffic lights change from green to yellow, the control chip controls the buzzer to give out an alarm, and warnings are given to pedestrians and drivers. The sampling monitor monitors the condition of road traveling and the condition of the pedestrians at any time, and the speed measurement device is used for measuring the traveling speed of drivers; when the traveling speed measured by the speed measurement device exceeds the set maximum speed, the control chip controls the sampling monitor to conduct sampling. Accordingly, the warnings are given to the pedestrians and the drivers, and the probability of running the red light is reduced; furious driving vehicles are also recorded, so that the streetlamp can assist the traffic police in handling the problem of illegal activities on roads.

The invention belongs to the field of optics, and discloses a double-beam laser Doppler velocity measurement system adopting a phase modulator. The double-beam laser Doppler velocity measurement system comprises an infrared semiconductor laser, a red light indicating semiconductor laser, a coupler, the phase modulator, a first collimating lens, a second collimating lens, a receiving lens and an infrared light detector, wherein the infrared semiconductor laser and the red light indicating semiconductor laser are connected with one end of the coupler by means of optical fibers respectively, theother end of the coupler is connected with the phase modulator by means of an optical fiber, the phase modulator divides conducted infrared laser into two uniform paths, the two paths of infrared laser are conducted to the front end of the first collimating lens and the front end of the second collimating lens by means of optical fibers respectively, and light reflected by a moving object is focused to the infrared light detector by means of the receiving lens. The double-beam laser Doppler velocity measurement system solves the problems of complex technology and high cost of an original velocity measurement system adopting an acousto-optic frequency shifter for frequency shift.

The invention discloses a ring with three colored light bulbs, which is composed of a ring and a light-emitting device to manufacture the ring. A circular tray is arranged on the ring of the ring, and a flat circular battery is glued on the tray. The positive electrode of the battery is connected to the One connection point of the three parallel bulbs is connected, the other connection point of the three light bulbs is respectively connected to the connection point at one end of the light control sheet, the other end connection point of the light control sheet is connected to one end wire of the micro switch, and the other end of the micro switch One end of the wire is connected to the negative pole of the battery. The button of the micro switch is arranged in the edge notch of the ring tray. A semi-circular transparent cover is made, and the cover opening of the transparent cover is matched with the edge of the ring tray and glued. Form a ring with 3 colored light bulbs. Close the switch button, the light control sheet controls the light bulb to emit red, yellow and blue lights alternately, and the transparent cover covers the tray to protect the light bulb. Flipping the switch makes the circuit an open circuit and the bulb is not lit.

The invention discloses a regulation and control system used for plant illumination. The system comprises a keyboard, a display module, a real-time clock module, a blue-light band-pass optical filter,a first photosensitive resistor sensor, a first amplification circuit, a red-light band-pass optical filter, a second photosensitive resistor sensor, a second amplification circuit, a first NTC thermosensitive resistor sensor, a third amplification circuit, a second NTC thermosensitive resistor sensor, a fourth amplification circuit, an A/D converter, a processing module, a first LED driving module, a second LED driving module, a red-light LED lamp and a blue-light LED lamp, the first NTC thermosensitive resistor sensor is arranged on a substrate of the red-light LED lamp, and the second NTCthermosensitive resistor sensor is arranged on a substrate of the blue-light LED lamp. According to the system, when light is insufficient, corresponding red and blue LED illumination light sources are turned on for supplementation so that illumination indexes can satisfy the requirement of plant growth, and the energy-saving effect is good.