188 results about "Far-red" patented technology

A linear surgical stapler includes an upper staple cartridge receiving half-section, a lower staple cartridge receiving half-section and a staple cartridge assembly. The staple cartridge assembly includes a cutting groove in which a reciprocating movement cutter is mounted. The cutter includes a bottom surface and a knife blade located at a far end of the cutter. The staple cartridge assembly includes a restricting member mounted therein and an elastic stopper. The elastic stopper abuts against the restricting member when the staple cartridge assembly is in an initial state. The restricting member breaks away from the staple cartridge assembly when the staple cartridge assembly is in a firing complete state, thereby preventing the cutter from sliding towards the far end of the staple cartridge. As a result, misfiring throughout the whole operation of the linear surgical stapler is prevented.

Photoelectric conversion regions (130, 140) are formed from both sides of a semiconductor substrate 100, so that the photoelectric conversion regions (130, 140) can be easily formed at a deep position from the surfaces of the semiconductor substrate 100 without using a high-energy ion implanter and a thick resist. With this configuration, long-wavelength input light from a visible light region to a far-red light region can be efficiently absorbed from the outside. Thus it is possible to improve the light receiving sensitivity of a solid-state image device and increase the number of pixels of the solid-state image device without reducing sensitivity in a unit pixel.

A durable highly reflective silver mirror characterized by high reflectance in a broad spectral range of about 300 nm in the UV to the far infrared (˜10000 nm), as well as exceptional environmental durability. A high absorptivity metal underlayer is used which prevents the formation of a galvanic cell with a silver layer while increasing the reflectance of the silver layer. Environmentally durable overcoat layers are provided to enhance mechanical and chemical durability and protect the silver layer from corrosion and tarnishing, for use in a wide variety of surroundings or climates, including harsh or extreme environments.

A plant growing system of the present invention includes: a first light source for irradiating red light to a plant; a second light source for irradiating far-red light to the plant; a control part that controls irradiation operations of the first light source and the second light source; and a time setting part that sets a time zone in which the control part operates the irradiation of the first light source and the second light source. The time setting part is designed such that the first light source starts red light irradiation before sunset; and the second light source starts far-red light irradiation after the red light irradiation.

The invention discloses a light-emitting diode (LED) four-color light supplemental device of a plant. The light supplemental device of the plant comprises a red-light LED array, a blue-light LED array, a far-red-light LED array, a green-light LED array, a substrate 5 and a control circuit, wherein the red-light LED array, the blue-light LED array, the far-red-light LED array and the green-light LED array are sequentially and fixedly arranged on the substrate 5, and the control circuit is used for controlling the red-light LED, the blue-light LED, the far-red-light LED, and the green-light LED to supplement light. According to the light supplemental device of the plant and a light supplemental method of the plant, the four-color light LED with a specific specification is selected, not only are colored lights which have a plurality of wavelengths and specific effects on plants by means of centralization of a variety of photosynthesis considered, but also economy and practicability are further taken into account. Meanwhile, considering the comfort of the human eyes, the four-color light LED with normal colors such as red, blue, far-red and green are selected. When the color lights are selected, according to the power of the selected LED with various colors, a reasonable ratio of R / B, R / FR and R / G can be obtained through the control circuit, thus the photosynthesis of the plant and the comfort requirement of the eyes of human can be met, and the requirements of orientation of cultivation of the plant with the need of participation of human can be better met.

Disclosed are: a lighting environment control facility capable of controlling light to be irradiated on cultivated crops to an optimum condition for the growth of the crops, thereby activating a natural defense of the crops against pests; a pest control method capable of determining whether or not to control pests of cultivated crops and controlling the pests on the basis of the determination; and an intensive cultivation method. The facility is used for pesticide-free cultivation, and includes a crop cultivation house which is formed of a light transmissive material and in which crops are cultivated, and a lighting control unit that controls the light to be irradiated upon the crops in the crop cultivation house. The lighting control unit is adapted to control spectral radiance (B1) of a wavelength range of blue light, spectral radiance (R1) of a wavelength range of red light, and spectral radiance (FR1) of a wavelength range of far-red light among the light to be irradiated on the crops that are cultivated in the crop cultivation house so as to be a predetermined condition.

Embodiments of the present invention relate to a pulse oximeter sensor. Specifically, embodiments of the present invention include emitting infrared light from a first light source into tissue, the infrared light including an infrared wavelength spectrum useful for measuring oxygen saturation in a patient with high saturation, emitting far red light from a second light source into the tissue, the far red light including a wavelength between 700 and 790 nanometers, and detecting the infrared light and far red light from the first and second light sources with a detector after the light has been scattered by the tissue.

The invention relates to a novel intraluminal tumor cryosurgery ablation catheter and an operation method thereof. The novel intraluminal tumor cryosurgery ablation catheter comprises a balloon, an air inlet pipeline, an air return pipeline, a vacuum pipeline, and an air inlet connector, an air return connector and a vacuum connector, which are respectively connected with near ends of the air inlet pipeline, the air return pipeline and the vacuum pipeline in seal mode, wherein the vacuum pipeline is located on the exteriors of the air inlet pipeline and the air return pipeline. The novel intraluminal tumor cryosurgery ablation catheter further comprises a buffer unit, wherein the buffer unit is arranged at the far end of the air inlet pipeline, and arranged in the balloon, the buffer unit is provided with a buffer air outlet, the near end of the buffer unit is connected with the far end of the air inlet pipeline or the air return pipeline in seal mode, the far end face of the balloon is in a concave shape, the far end of the buffer unit is connected with the far end of the balloon in seal mode, and a connection point between the far end of the buffer unit and the balloon is arranged at the middle of the concave portion of the far end of the balloon or in the far end of the balloon. The novel intraluminal tumor cryosurgery ablation catheter cooperates with an endoscope so as to adapt to complex cavity environments, and the far end of the balloon is large in contact area, and thereby guarantees a large freezing range.

The invention relates to a method for acquirement an image of a single atom and especially relates to a detection method capable of realizing direct acquirement of an image of a single atom. The detection method capable of realizing direct acquirement of an image of a single atom solves the problem that during single atom imaging, detection is difficult because of strong background signals. The detection method capable of realizing direct acquirement of an image of a single atom comprises the following steps that 1, a quadrate quartz-made glass vacuum room is treated; 2, a light field part and a magnetic field part of a magneto-optical trap system are constructed; 3, a far red-detuned micro-optical dipolar trap is constructed; 4, after an exciting light is superposed with one of three light beams which are orthogonal, fluorescent lights produced by caesium atoms are collected by a lens unit, are reflected to an interference filter by a polarization beam splitter and enter into multimode fibers; and 5, the fluorescent lights produced by caesium atoms are collected by an aspherical mirror and are reflected to a camera of a charge-coupled device by a total reflective mirror forming an angle of 45 degrees with the horizontal plane; and an image of a single atom is obtained by adjustment of an imaging zone of the camera of the charge-coupled device. The detection method provided bythe invention can realize direct acquirement of an image of a single atom and can be widely utilized for the fields of control and measurement of a single atom, and quantum information.

The present invention relates to a lighting device (100) to stimulate plant growth and bio-rhythm of a plant. The lighting device (100) comprising a solid state light source (102) arranged to emit direct red light having a wavelength of 600 to 680 nm, preferably 640 to 680 nm, and a wavelength converting member (106) arranged to receive at least part of said direct red light emitted from said solid state light source (102) and to convert said received direct red light to far-red light having a maximum emission wavelength of 700 to 760 nm, preferably 720 to 760 nm.

This light emitting device is provided with: a light emitting element which emits excitation light; and a far-red phosphor which is excited by the light of the light emitting element and emits light that has a peak wavelength within the range of 700-800 nm. The far-red phosphor has a median diameter within the range of 1-20 μm.

The invention discloses a temperature measurement method, which comprises the following steps: S101, obtaining a first temperature value of at least one to-be-measured target in a view field area; S102, obtaining a distance value corresponding to the to-be-measured target in the view field area; and S103, according to the distance value obtained in the step S102, calculating the temperature errorthrough a pre-calibrated function relationship between the distance and the temperature error, and correcting the first temperature value by using the temperature error to obtain a second temperaturevalue, wherein the second temperature value is the temperature of the to-be-measured target. According to the invention, a depth camera and an infrared detector are used for collecting the same view field area, and the position of a to-be-detected target in a far-infrared image is determined according to the pixel points of the to-be-detected target in a depth image, further the temperature valueobtained in the far infrared image is corrected according to the distance value obtained in the depth image to obtain the accurate temperature value of the to-be-detected target, and the temperature measurement accuracy is improved through the synergistic effect of the depth camera and the infrared detector.

Provided herein are improved fluorogenic compounds and probes that can be used as reagents for measuring, detecting and / or screening peroxynitrite. The fluorogenic compounds of the invention can produce fluorescence colors, such as green, yellow, red, or far-red. Also provided herein are fluorogenic compounds for selectively staining peroxynitrite in the mitochondria of living cells. Provided also herein are methods that can be used to measure, directly or indirectly, the presence and / or amount of peroxynitrite in chemical samples and biological samples such as cells and tissues in living organisms. Also provided are high-throughput screening methods for detecting or screening peroxynitrite or compounds that can increase or decrease the level of peroxynitrite in chemical and biological samples.

The invention discloses a method for testing the growth of cucumbers by LED (light-emitting diode) continuous light and intermittent light with different frequencies. The method comprises a method for testing the growth of cucumber seedlings by the LED continuous light and the intermittent light with different frequencies and a method for testing photosynthetic fluorescence of the cucumber seedlings by the LED continuous light and the intermittent light with different frequencies; under the conditions that the LED light source is red light, far-red light, green light and blue light with the ratio of 3:1:1:1 and the duty ratio is 90%, the proper frequency for treating the cucumber seedlings is 100,000 Hz based on the seedling morphological index, and the proper frequency for treating the cucumber seedlings is 0.1 Hz based on the material accumulation aspect. Based on the chlorophyll content and the photosynthetic fluorescence characteristic, 100,000 Hz treatment can increase the chlorophyll content of the cucumber seedlings, the maximal quantum yield of a photosystem II and non-photochemical quenching qN, and photosynthesis is conducted successfully, so that the net photosynthetic rate is obviously increased.

A plant growing system of the present invention includes: a first light source for irradiating red light to a plant; a second light source for irradiating far-red light to the plant; a control part that controls irradiation operations of the first light source and the second light source; and a time setting part that sets a time zone in which the control part operates the irradiation of the first light source and the second light source. The time setting part is designed such that the first light source starts red light irradiation before sunset; and the second light source starts far-red light irradiation after the red light irradiation.

The invention provides a plant growth lamp driven by solar energy, in particular to a plant growth lamp with specific spectrum wavelength particularly designed for growing development of plant, belonging to agricultural engineering technical field. The invention discloses a plant growth lamp driven by solar energy, comprising a solar battery module, a light source panel consisting of three LED semiconductor light sources, and a light quality regulating and controlling device, wherein, the light source panel consists of a red LED semiconductor light source with wavelength of 630nm, a blue LED semiconductor light source with wavelength of 460nm and a far-red LED semiconductor light source with wavelength of 730nm which are in cross combined distribution. The LED light sources have an improving function to the growth of plant, can reduce the temperature increment brought by heating of a common light source, and can reduce manufacturing cost; the LED light sources also can sufficiently use the solar energy to provide energy for plant production under man-made environment, and can reduce dependence to conventional energy and electric energy.

A series of conjugated polymer-based nanoparticles having far-red / near infrared emission ranges are disclosed. Cross coupling methods to prepare the conjugated polymers and methods of nanoparticle preparation are also discussed. The conjugated polymer nanoparticles are used as FR / NIR fluorescent probes in in vitro and in vivo biosensing and bioimaging applications, and are also used in photoacoustic imaging as contrast agents. Finally, use of the conjugated polymer nanoparticles in photothermal therapy is described.

A method of altering a refractive property of a crosslinked acrylic polymer material by irradiating the material with a high energy pulsed laser beam to change its refractive index. The method is used to alter the refractive property, and hence the optical power, of an implantable intraocular lens after implantation in the patient's eye. In some examples, the wavelength of the laser beam is in the far red and near IR range and the light is absorbed by the crosslinked acrylic polymer via two-photon absorption at high laser pulse energy. The method also includes designing laser beam scan patterns that compensate for effects of multiphone absorption such as a shift in the depth of the laser pulse absorption location, and compensate for effects caused by high laser pulse energy such as thermal lensing. The method can be used to form a Fresnel lens in the optical zone.

The invention belongs to the field of plant tissue culture, and particularly relates to a method for promoting rooting of a butterfly orchid tissue cultured seedling by utilizing an LED light source. The method specifically comprises the following steps: (1) performing induced culture by taking a butterfly orchid flower as an explant to obtain a cluster bud; (2) multiplying and culturing the cluster bud obtained in the step (1), dividing the multiplied and cultured cluster buds into single buds and inoculating the single buds into a rooting culture medium; (3) culturing and rooting the cluster buds which are inoculated into the rooting culture medium in mixed light consisting of three single-color lights including red light, blue light and far-red light. According to the method, the treatment of the mixed light added with the far-red light promotes the growth of the roots of butterfly orchid seedlings, so that accumulation of dry matters is increased, and the growth of the underground parts is not inhibited; meanwhile, the method has the advantages of lowering the production cost and saving energy.

A method of despeckling light that includes mixing high-speckle far-red laser light with low-speckle green laser light in amounts selected to achieve a desired color point in a digital image. The far-red laser light may be red laser diodes with wavelengths in the range of 640 to 680 nm. The green laser light may include stimulated-Raman-scattering light from an optical fiber. The desired color point may be DCI red or Rec. 709 red.

The invention relates to a method and apparatus of photo-modulation reflection spectroscopy based on step scan. The apparatus comprises a Fourier transform infrared spectrograph measuring system, a laser used as pump light source, a lock-in amplifier and a low-pass filter which connect the Fourier transform infrared spectrograph detector and the circuit controlling plate, wherein the circuit-breaker on the light path between the sample and the laser can transfer the constant pump laser into the modulated laser and feedback it in the reference end of the lock-in amplifier to control the lock-in.

Provided are a far infrared imaging device that illuminates a specimen with far infrared light and detects an image of the specimen, which is a device capable of imaging a specimen speedily without using a high-power light source and without generating damage or a non-linear phenomenon in the specimen as a target to be imaged and a method using the same. A specimen is illuminated with the far infrared light in a line shape or in a shape of a plurality of points arranged in line on the specimen; and an image of the specimen is detected while moving the specimen in a direction perpendicular to the line illuminated by the far infrared light. The far infrared light is emitted by applying pulsed pump light from a femtosecond pulse light source to the far infrared light emission element.

The invention discloses a far red light gene loop expression control system, comprising a light sensor used for sensing a far red light source, a processor used for processing signals transmitted by the light sensor, and an effector used for responding the signals transmitted by the processor. The invention also discloses a gene loop remote regulation and control system, comprising the far red light gene loop expression control system, a control device used for sending out a remote control command, and a far red light source device. The invention further discloses application of the far red light gene loop expression control system and the gene loop remote regulation and control system in treatment of diabetes mellitus. The invention also discloses a eukaryotic expression vector, an engineering cell or an engineering cell transplantation vector which comprises the far red light gene loop expression control system. The far red light gene loop expression control system can rapidly regulate and control gene expression and has the characteristics of super-remote control, intelligent regulation and control on gene expression level, high regulating expression times, high space-time specificity, strong tissue penetration, good insulativity, no toxic and side effects, and the like.

The invention discloses a method for inducing tomato to improve low temperature resistance. Tomato plants are irradiated with far-red light LED light sources to supplement light during the night, wherein the intensity of the far-red light is 10-50micron mol m-2s-1, the wavelength scope falls in the scope of 675-780nm, the wavelength of peak value lambda max is 735nm, and the power of the far-red light LED light source is 5-100watt. The far-red light LED light sources are installed on the upper portion of tomato plants, and the installation density is 1-5watt / square meter. LED lamps emitting far-infrared light source are employed to supplement light for plants during the night, so as to induce CBF1 expression of tomato cold-resistant genes, reduce the light inhibition of low temperature on tomato photosystems II, and improve photosynthesis efficiency and seedling rate. The method can be used for tomato seedling growing in winter and spring, and winter, spring and overwintering cultivating. The resistance to low temperature and severe cold of the tomato is improved, the energy consumption for heating is lowered, food safety is ensured, and tomato production is ensured.

An optical fiber propagation time measurement circuit. A light pulse is iteratively transmitted into a near end of a fiber under test (FUT) at a predetermined frequency and detected at a far end of the FUT after a propagation time. A repetitive propagation signal having a predetermined amplitude and a width corresponding the propagation time is developed by detection circuitry. The d.c. voltage average of the propagation signal is determined and used to compute the propagation time since the ratio of the d.c. voltage average to the predetermined amplitude is equal to the ratio of the propagation time to the period of the light pulses.

The invention belongs to the field of materials, and particularly relates to a special anti-ageing dimming red masterbatch for a solanaceous fruit vegetable greenhouse film and a preparation method of the anti-ageing dimming red masterbatch. The special anti-ageing dimming red masterbatch for the solanaceous fruit vegetable greenhouse film is obtained by especially selecting a red pigment, loading a light stabilizer and an antioxidant on a sustained-release agent, and adopting carrier resin as matrix. The special greenhouse film prepared by adding the masterbatch is not easy to fade, long in service life and moderate in light transmittance; red and orange light and far-red light of the transmitted spectrum are increased; and the nutrient quality of the solanaceous fruit vegetables can be obviously improved.

The invention relates to a zoom lens comprising a first lens group of positive focal power, a second lens group of negative focal power, a third lens group of positive focal power and a fourth lens group of positive focal power, which are sequentially arranged from an object end to an image end along an optical axis direction. All the first lens group, the second lens group, the third lens group and the fourth lens group can move along the optical axis direction in the zooming process so as to realize zoom. The zoom lens satisfies the condition formula: 0.15<|L3| / Lt<0.25, wherein L3 is a motion vector of the third lens group on an optical axis when the zoom lens zooms from a wide-angle end to a far end, and the motion vector is a positive value from the object end to the image end and is a negative value from the image end to the object end; and Lt is the total length of the zoom lens at the far end along the optical axis direction. The zoom lens provided by the invention has high zoom ratio and becomes thinner in the optical axis direction.

In the plant cultivation using artificial light, light can be effectively irradiated to the lower parts of leaves even with highlight irradiation. The light device for plant cultivation comprises a main light source of monochromatic light or mixed color which can emit a wavelength within the range of 400-700nm and has over 200Mumol / m2 / s light quantum beam density of photosynthesis, and a far-red light source emitting far-red light. The main light source and the far-red light source include semiconductor light-emitting elements.

The present invention is based, at least in part, on the isolation of intact pigment granules from the brown chromatophores in the skin of the cuttlefish, Sepia officinalis and the characterization of the optical properties of the isolated pigment granules. In particular, it has been discovered that the isolated pigment granules not only fluoresce in the far red wavelength of light when excited with blue / green light, but they also absorb and transmit or scatter light in the visible light range and are stable and optically active under ambient conditions.