349results about How to "Increase exposure time" patented technology

A rapid iris acquisition, tracking, and imaging system can be used at longer standoff distances and over larger capture volumes, without the active cooperation of subjects. The captured iris images can be used for biometric identification. Light illuminates the subjects' eyes. Reflections from the eyes are used to steer a high resolution camera to the eyes in order to capture images of the irises.

A rapid iris acquisition, tracking, and imaging system can be used at longer standoff distances and over larger capture volumes, without the active cooperation of subjects. The captured iris images can be used for biometric identification. Light illuminates the subjects' eyes. Eye reflection from the eyes is used to steer a high resolution camera to the eyes in order to capture images of the irises.

An instrument for scanning a specimen has a two-dimensional sensor array, the sensor array containing a mosaic colour filter array or a scanning colour filter array. The instrument can be operated in fluorescence or in brightfield. The scanning colour filter array has the same colour throughout each row with adjacent rows having different colours.

An electron beam drawing mask includes a pattern supporting film for transmitting an electron beam therethrough; an electron beam scattering body pattern formed over the pattern supporting film; and a support member for supporting the pattern supporting film and the electron beam scattering body pattern. The pattern supporting film has a film thickness of 0.005 to 0.2 micron, a film material density of 1.0 to 5.0 g / cm<3 >and an elastic modulus of 0.8x10<11 >Pa or higher. The electron beam scattering body pattern has a film thickness of 0.2 to 2 micron, a film material density of 1.0 to 5.0 g / cm<3>, and an elastic modulus of 0.8x10<11 >Pa or higher.

Disclosed are water-soluble gel-based compositions for the delivery of recombinant adeno-associated virus (rAAV) vectors that express nucleic acid segments encoding therapeutic constructs including peptides, polypeptides, ribozymes, and catalytic RNA molecules, to selected cells and tissues of vertebrate animals. Also disclosed are gel-based rAAV compositions are useful in the treatment of mammalian, and in particular, human diseases, including for example, cardiac disease or dysfunction, and musculoskeletal disorders and congenital myopathies, including, for example, muscular dystrophy, acid maltase deficiency (Pompe's disease), and the like. In illustrative embodiments, the invention provides rAAV vectors comprised within a biocompatible gel composition for enhanced viral delivery / transfection to mammalian tissues, and in particular to vertebrate muscle tissues such as a human heart or diaphragm tissue.

The present invention provides a rapid, high quality iris imaging system. In one embodiment, on-axis illumination is used. A single steering mechanism steers both the camera and the illumination, without parallax issues. The illumination beam can be combined along the camera's optical axis before or after the fine steering and focus correction mechanism. In a pre-correction configuration, the iris illumination spot can be reduced in size to be only slightly larger than the iris. In both the pre and post-correction configuration, the eye safety limits will be most critical at the subject, which allows for maximization of the illumination flux.

The invention relates to a method for automatically switching over a night scene mode and an image pickup device, wherein the method for automatically switching over the night scene mode comprises the following steps: obtaining the relevant parameters of pixel brightness in a preview image, and calculating the brightness of the preview image; and opening the night scene mode when the brightness of the preview image is lower than a first threshold value. The embodiment of the invention obtains the brightness of the current ambient environment of the shot scenes by the preview image; when the brightness of the ambient environment is lower than the first threshold value, the night scene mode of the image pickup device is opened and the exposure time of a photoreceptor in the image pickup device is increased so as to increase the image brightness and cause that a user automatically obtains the image with the reasonable brightness.

A vascular access device having a fluid chamber in which UV-C radiation is emitted to irradiate pathogens contained in an infusate flowing though the fluid chamber.

An instrument and method for scanning at least a portion of a large specimen preferably causes the specimen to move relative to a two-dimensional detector array at a constant speed. The detector array takes one image of the specimen for each line that the detector moves. A controller controls a shutter of the detector array to open to take images and to pass the images to a processor, which is preferably a computer. The instrument takes one partial image of each part of the specimen that is being scanned and then combines those images with other images to produce a contiguous image.

An ultraviolet-and-ozone disinfection apparatus 200 providing an improvement on disinfection, includes a disinfection tank 202, a mercury UV lamp 210 enclosed by a quartz tube 208 for generating UV light with air trapped between them undergoing UV irradiation to generate ozone, an ozone transmitting tube 216, a spiral water transmitting tube 215 wrapping around the quartz tube in a spiral manner to achieve sufficient disinfection by mixing ozone in water, a sleeve barrel enclosing the spiral tube. Along the entire flow path, water is exposed to UV radiation to achieve sufficient disinfection and reduce excessive ozone that is harmful to human health.

The printer has at least two printing stations which cause images to be printed on a substrate. The printer is capable of registration adjustment. First and second patterns of spaced registration marks are printed onto the substrate by operation of the printing stations. The second pattern partially overlaps the first pattern to form a composite pattern of registration marks. The composite pattern is illuminated and the reflectivity thereof is examined at wavelengths complementary to the colors of the first and second patterns to obtain a reflectivity signature for the composite pattern. The reflectivity signature of the composite pattern (120) is compared with a predetermined signature to determine an adjustment factor for the printer.

In one aspect, the invention relates to a method suitable for administering protein therapeutic molecules orally, sublingually, topically, intravenously, subcutaneously, nasally, vaginally, rectally or by inhalation so as to avoid inactivation, by using VHH polypeptides derived from Camelidae antibodies. The invention further relates to the said therapeutic molecules. The invention further a method for delivering therapeutic molecules to the interior of cells. The invention further relates to anti-IgE therapeutic molecules.In one aspect, the present invention relates to a method wherein an immunoglobulin single variable domain (such as a Nanobody) and / or construct thereof are absorbed in pulmonary tissue. More particularly, the invention provides systemic delivery of an immunoglobulin single variable domain and / or construct thereof via the pulmonary route.

The invention discloses an air purifier with a sterilization function. The air purifier comprises a shell, a dust filter device, an air suction device, an ultraviolet lamp and an electronic control circuit. The dust filter device, the air suction device, the ultraviolet lamp and the electronic control circuit are arranged in the shell, an air inlet and an air outlet are formed in the shell, and the electronic control circuit is connected with a control fan and the ultraviolet lamp. The air purifier is characterized in that a spiral air channel is arranged in the shell, the air suction device is arranged at an end of the spiral air channel, and the ultraviolet lamp is inserted in the middle of the combined spiral air channel and is arranged along the axial direction of the spiral air channel. The air purifier has the advantages that the air purifier is simple in structure and can stably and smoothly run, and excellent sterilization and dust removal effects can be realized.

The invention provides a plant growth light with a high-efficiency high-power LED as a light source, which comprises a support, a constant-current power source, a control circuit and an LED light source. The LED light source adopts 1 to 10 red light LED light-emitting diodes and blue light LED light-emitting diodes of between 1 and 5 watts and is formed by packaging of red and blue single chips or composite chips, the LED light source is adhered on an aluminum-based printed circuit board through a high thermally conductive adhesive, the center of the LED light source is provided with a light-emitting lens, the aluminum-based printed circuit board is fixedly connected with a flat panel radiator, and two sides of the flat panel radiator have high-efficiency reflecting shades. The plant growth light has low power consumption, long service life of the light source, higher light efficiency and good application prospect, and is capable of effectively controlling illumination required by the plant growth and controlling optical wavelength, duty ratio and frequency quantitively.

An imaging device for recognition (100) includes an image pickup unit (101) that sequentially generates a plurality of images by shooting an object, a face recognition unit (105) that recognizes, in each of the plurality of images, an object region in which the object is located in the image, a face tracking unit (106) that tracks the object region across the plurality of images, an area calculation unit (109) that calculates an area of the object region, and an exposure control unit (102) that sets a first exposure time for the image pickup unit (101) in the case where the area is smaller than a first threshold, and sets a second exposure time longer than the first exposure time in the case where the area is equal to or larger than the first threshold.

The invention relates to diffracted light image changing high speed laser write through method. It includes the following steps: do electrostatic image for incidence parallel light reaches beam-splitting element though diaphragm; gathering the beam-slitting light to produce interference fringe optical field; orderly photoengraving interference fringe with different trend to form micro light grating image. Its features are that it is adopted solid state ultraviolet laser to produce laser beam; and it is used TTL signal control to realize laser beam pulse output; the two sets of the laser beam have zero optical path difference; optical system and photoresist dry plate are moved on two one dimension directions which are vertical with each other; photolithography is adopted continual motion, continual pulse exposing type. Thus the invention realizes high speed laser write through photolithography system to make diffracted light changing image original edition manufacturing shorten between many hours to seventeen hours. It really enters industrialization application period, and is the important breakthrough of digitalization advanced manufacturing technique in laser holographic technique field.

Water to be desalinated or otherwise purified is enriched by having hydrate-forming substance dissolved into it, without causing hydrate to form. Hydrate kernels are brought into contact with the enriched water to be treated, and the hydrate kernels grow outwardly into the water to be treated by incorporating dissolved molecules of the hydrate-forming substance and water from the water to be treated. Thus, substantially solid, generally spherical hydrate masses, which are preferred for hydrate-based desalination or purification, can be formed. Hydrate-forming substances can be dissolved into the water to be treated under conditions not conducive to formation of hydrate, such that hydrate does not form, using vigorous means. Hydrate-forming substance is also preferably dissolved into the water to be treated under conditions suitable for hydrate to form, but without causing hydrate to form, e.g., by being infused into the water to be treated using infusion membranes.

An image obtaining method and apparatus are provided. The method of obtaining an image by an image obtaining apparatus includes calculating entropy of an input image, determining an optimal exposure time at which the entropy reaches a maximum value, and obtaining an image based on the determined optimal exposure time.

An image obtaining method and apparatus are provided. The method of obtaining an image by an image obtaining apparatus includes calculating entropy of an input image, determining an optimal exposure time at which the entropy reaches a maximum value, and obtaining an image based on the determined optimal exposure time.

Scenes captured with an endoscope (201) of a teleoperated surgical system (200) and displayed on a display unit (251) maintain a consistent brightness even though optical output power of an illuminator (210) changes, and working distance (204) between tissue (203) and the distal tip of the endoscope changes. Teleoperated surgical system (200) also automatically detects when endoscope (201) contacts tissue (203) and adjusts the output optical power of illuminator (210) so that tissue damage does not occur.

A liquid crystal display (“LCD”) panel includes a first substrate including a pixel electrode defining pixel areas, a first alignment layer disposed on the pixel electrode and a first reactive mesogen layer disposed on the first alignment layer, a second substrate including a common electrode layer disposed on an entire portion of the second substrate facing the first substrate, a second alignment layer disposed on the common electrode layer and a second reactive mesogen layer disposed on the second alignment layer, and a liquid crystal layer disposed between the first and second substrates and including a first liquid crystal compound represented by Chemical Formula 1, a second liquid crystal compound represented by Chemical Formula 2 and a third liquid crystal compound represented by Chemical Formula 3:

A long-term solution for document and information storage is based on the storage of an image of the actual document, rather than on binary coding. Associated with the storing of this image are readers and writers that allow reading / writing in numerous formats as well as the supplementing of the stored image with other data such as digital data, bar code(s), metadata, retrieval information, and the like. This human readable format has the capability of removing the need for interpreting devices, hardware and / or software for retrieval of the stored image(s).

For controlling exposure in a camera, first and second brightness levels of first and second areas of a captured image are determined. First and second weight values for the first and second brightness levels are determined with an increase of the first weight value for a higher difference between the first and second brightness levels. Exposure control data is generated from the first and second weight values and the first and second brightness levels.

A device for the treatment of a liquid or gaseous medium, in particular water or air, using UV radiation, comprises a UV radiation source (24), with an axial longitudinal direction and an essentially perpendicular, in particular radial direction of irradiation (R), with several layers of transmissive treatment chambers (K1-K4), serially arranged one on the other in the radiation direction (R), separated from the UV radiation source (24) and from each other by a transparent, UV-transmissive separating layer (T1-T4) which is UV transparent. The chambers, beginning with a first treatment chamber (K1), adjacent to the UV radiation source, form a flow channel for the medium running in the longitudinal direction of the UV radiation source (24), the flow channel emptying (26) into the subsequent treatment chamber (K2, K3, K4) that is at a greater distance from the UV radiation source (24) in the direction of irradiation (R).

A particle imaging system and a method provided for analyzing particles in a fluid; the system comprising a means for capturing image data of the fluid within a sample cell, and a means for flow control, a valve and a pump, wherein the fluid within the sample cell is periodically stopped, or slowed down, for image capturing and moved rapidly between image capturing events. Advantageously, the present invention allows to increase exposure times, which is particularly significant for fluorescent imaging at low illumination levels.

A quantitative fluorescence image and appropriate brightness is acquired and observed. Provided is a fluorescence observation apparatus including: an illumination section that includes a light source for irradiating an observation target region with illumination light and excitation light; a fluorescence image acquisition section that acquires a fluorescence image from fluorescence produced in the observation target region; a white-light image acquisition section that acquires a reference image from return light returning from the observation target region; an exposure-time adjustment unit that adjusts the exposure time based on the luminance value of the reference image; a diaphragm control section and a semiconductor laser control section that control the intensity of the illumination light and that of the excitation light based on the exposure time; a first normalization section that normalizes the luminance of the reference image and the fluorescence image by the exposure time; a second normalization section that normalizes the luminance of the reference image and the fluorescence image by the light intensity; andan image correction section that corrects the fluorescence image by the reference image, by using at least one of the normalized reference image or fluorescence image.

A vascular access device having a fluid chamber in which UV-C radiation is emitted to irradiate pathogens contained in an infusate flowing though the fluid chamber.