633results about How to "Uniform irradiation" patented technology

A galvanometer mirror rotates in one direction when the galvanometer mirror is used. A spot can be scanned on an irradiated surface at a more constant speed by rotating the galvanometer mirror and by using the inertia. Moreover, it is preferable to make the galvanometer mirror heavy because the inertia becomes higher so that the spot is scanned at a more constant speed. In addition, in a polygon mirror of this invention, mirrors are arranged so as not to contact each other because a change time of the scanning position between the mirrors is provided. By moving the irradiated object with timing together when the laser light is not irradiated, the laser process can be performed efficiently.

Devices and methods are disclosed for treatment to tissue surrounding a body cavity or other intracorporeal site, such as after removal of tissue, e.g. cancer. Such a device includes a treatment location on a distal portion of the device with one or more radiation shielding components that partially encircle a radiation source at the treatment location to control emitted radiation from the radiation source. The device minimizes radiation damage to healthy tissue surrounding the body cavity or other site while irradiating tissue not shielded by the radiation shielding components. A device embodying features of the invention can include a sealing member at a location on a shaft of the device proximal to a treatment location to seal the passageway leading to the body cavity.

A mold having an uneven structure is provided, wherein surface roughness Ra of the uneven structure, a maximum value Ra′(max) and a minimum value Ra′(min) of line roughness Ra′ satisfy the following Expression (1).

0.13≦(Ra′(max)−Ra′(min))/Ra≦0.82  (1)

The invention relates to a headlight projection module (10) for a vehicle, which is used for generating preset light distribution. The headlight projection module (10) has a light source (11) for emitting light, a primary lens (12) for concentrating a part of the emitted light, and a secondary lens (14) for projecting a part of the concentrated light in a light emitting direction (3) of the projection module. In order to enable the headlight projection module (10) to realize maximally effective structure and to illuminate a non-circular secondary optical unit (14) as uniform as possible with the whole surface, it is suggested that an optically active micro-structure (24) that refracts light be arranged in the beam path of the concentrated light in a virtual object position of the secondary optical unit (14). The micro-structure (24) has dimensions of the function-determining structural elements (26, 27) in the micrometer range, especially a height difference of the single structural elements (26, 27).

An apparatus and method for photodynamic therapy or photodynamic diagnosis using an illuminator comprising a plurality of light sources generally conforming to a contoured surface and irradiating the contoured surface with substantially uniform intensity visible light. The light sources may comprise generally U-shaped fluorescent tubes that are driven by electronic ballasts. Adjustment of the ballast voltage controls the output power of the tubes. The tubes are supported by a sheet-metal or plastic housing and are covered by a polycarbonate shield which directs cooling airflow within the unit and prevents glass-patient contact in the event of tube breakage. An aluminum reflector located behind the tubes increases both the output irradiance and the uniformity of the output distribution. The spacing of the U-shaped tubes is varied to increase the output at the edges of the illuminator to make the output more uniform. Also, different portions of the tubes are cooled at different amounts, to improve uniformity. A light sensor monitors output from the U-shaped tubes to provide a signal for adjusting the output from the tubes.

The speed of the laser scanned by the scanning means such as a galvanometer mirror or a polygon mirror is not constant in the center portion and in the end portion of the scanning width. As a result, the object, for example an amorphous semiconductor film, is irradiated with the excessive energy and therefore there is a risk that the amorphous semiconductor film is peeled. In the present invention, in the case where the laser spot of the energy beam output continuously on the irradiated object is scanned by moving it back and forth with the use of the scanning means or the like, the beam is irradiated to the outside of the element-forming region when the scanning speed of the spot is not the predetermined value, for example when the speed is not constant, and accelerates, decelerates, or is zero, for example in the positions where the scanning direction changes, or where the scanning starts or ends.

The invention discloses a lifting drying rack. The lifting drying rack comprises a lifting motor, a pull rope, a lifting rack and a drying rod, wherein the upper end of the stretchable lifting rack is fixed to a ceiling, and the drying rod is connected to the lower end of the lifting rack. The lifting drying rack further comprises a manual lifting mechanism provided with a rotatable second winding wheel, the lifting motor is arranged at the upper end of the lifting rack, an output shaft of the lifting motor is connected with a first winding wheel through a speed change mechanism, the lower end of the lifting rack is provided with a movable pulley, and the upper end of the lifting rack is provided with a fixed pulley; one end of the pull rope is fixedly wound on the first winding wheel in a stacked mode, the other end of the pull rope is sequentially wound around the movable pulley and the fixed pulley and then fixedly wound on the second winding wheel in a stacked mode. The lifting mechanism can be suitable for electrical operation and manual operation to ensure normal use of the drying rack in a power failure, saves labor for operation and is convenient to install.

The invention relates to an intelligent drilling television imaging instrument, which mainly consists of a main controller, an underground probe, an underground cable, a windlass, a hub, a stepper motor, a depth counter and a tripod. The main controller is used for collecting and storing the information such as image splicing, video, depth and azimuth angle; the underground cable is used for supplying power to the probe and transmitting a control order, video, angle and the like; the underground probe is used for shooting a picture and video and recording the underground azimuth angle and transmitting the information to an industrial control computer through the cable; the depth counter is used for recording the underground depth of the underground probe; the stepper motor is used for controlling the probe to ascend and descend at a constant speed. An open-type lens is directly arranged in the water, and no glass cover is arranged in front of the lens, so that a shot image of a well wall is clearer, and the color retention is more authentic; a combined-type light source is adopted, so that the well wall and the underground situation can be directly observed; by adopting the unique stepper motor and the depth counting hub device, the probe can be lowered and lifted at a constant speed, and the images are completely spliced; by introducing electronic rock core library software, an electronic rock core file is established.

Work is irradiated with polarized light generated by configuring in such a manner as to have a polarizer using a grating that separates polarized light from non-polarized light, a lamp and a condenser mirror that allow light to fall on the polarizer, a collimator lens that converts the incoming light into parallel beams, an integrator lens that uniformizes intensity distribution of light radiated from the polarizer, and a diffusion lens with functions to enlarge or contract the irradiated range to the work size, and by forming protrusions and recesses of the shape, material, and size that fit to the desired wavelength on a substrate such as quartz, etc. that transmit ultraviolet light, and by providing the light-polarizing performance by appropriately providing an incident angle. By carrying out this processing, the alignment film in the liquid crystal display element can be photo-aligned at high accuracy and uniformly.

The embodiment of the invention discloses a device for orientation of an air floating type liquid crystal substrate. The device comprises a heating platform, supports and supporting ejection needles, wherein a plurality of air holes are formed in the heating platform and used for delivering hot wind which is even in temperature and flows vertically upwards, the supports are arranged on the periphery of the heating platform and used for supporting and clamping the liquid crystal substrate to be oriented, the supporting ejection needles are evenly arranged in the heating platform, can move vertically with the supports in the same direction, and are used for supporting the bottom of the liquid crystal substrate for at least part time, and the air injection amount of the air holes is gradually reduced from the center of the heating platform to the edge of the heating platform. The embodiment of the invention further discloses a corresponding method for orientation. According to the device and method, the liquid crystal substrate is evenly heated and irradiated by ultraviolet light and the quality and the yield of the liquid crystal substrate can be improved.

To provide a method for manufacturing a plurality of types of illuminating devices having different specifications while reducing cost. A substrate includes a common flexible portion and a plurality of units bendable with respect to the common portion, where the common portion includes a pad that is extended in the horizontal direction in the plane of the drawing and that is arranged for every predefined interval. In the present manufacturing method, a substrate piece is created by cutting the substrate mounted with the light emitting element in a first direction, the common portion in the substrate piece is formed according to the illuminating device to be manufactured, the relative position of the individual portion with respect to the formed common portion is respectively positioned, and the wiring for supplying power to the pad in the substrate piece is formed.

An ultraviolet curing apparetus consists of a bearing unit for bearing a pair of mother board and an optical unit for curing a pair of said mother board. It is featured as forming optical unit by a backlight unit set at one side of bearing unit and used to let light shine on pair of said mother board uniformly, forming said backlight unit by a light source and a substrate.

The invention relates to a stereomicroscope side lighting method and the dark-field stereomicroscope thereof. The method uses the beam emitted from the light source to lighting the observed sample from the side of the stereomicroscope stage, and the beam is satisfied the following characteristic: firstly,the beam and the observed sample are in a same plane spatial limit, secondly, the included angle between the beam and the symmetrical line O1O2 of the two object lens primary optic axis of the stereomicroscope is 80 to 100 degrees. The design consideration of the dark-field stereomicroscope which is an improvement for the traditional stereomicroscope, is enable the last light part directly emitted from the light source or through the optical instrument to change the direction to horizontally locate the observed sample stage, so that the symmetrical line O1O2 of the stage and the two object lens primary optic axis is arranged vertically. By using the method and the dark-field stereomicroscope thereof can effectively lighten the interference of the background light, greatly improve the contrast and the signal to noise ratio of the observed sample, especially fit for the liquid phase dissection observation.

A radiant heating arrangement with a high infrared heating capacity for treatment chambers provides a vacuum-compatible radiant heating system with which it is possible to achieve considerable radiation levels reliably. The radiant heating arrangement includes a tube that is permeable to infrared radiation. The tube extends into the treatment chamber and penetrates the wall of the chamber with at least one end. A source of infrared radiation is situated inside the tube with the inside of the tube being isolated from the atmosphere inside the treatment chamber.

The invention discloses a low-temperature negative pressure drying method and a low-temperature negative pressure drying device for textile materials and textiles. The device comprises a microwave source, a temperature sensor, a resonant cavity, an air-cooled or water-cooled device, a vacuum sensor, an air release valve, a humidity sensor, an air extraction valve, an air extraction pipeline, a vacuum pump, a vacuum pump motor, a stirrer, a panel, a controller, a shielding sealing door, a shell, an indicating lamp, a switch, a scattered article drying box and a cheese drying bracket; and the scattered textile materials or textiles are put into the scattered article drying box, or cheeses are stacked on the cheese drying bracket and then put into the resonant cavity, and the dried articles are heated and dried under the low-temperature negative pressure working condition. Relatively long bottleneck at the uniform velocity drying stage when single microwave is used for drying can be effectively overcome, over drying is avoided, and the whole drying process is quick and energy-saving; and the method and the device can particularly meet the drying requirements of special animal fibers, artificial fibers, synthetic fibers and like and the products thereof with special temperature requirements.

The invention discloses a device and method for detecting surface defects of a perforated plate workpiece. The system comprises a transfer system, a special-shaped illuminating light source, an industrial charge coupled device (CCD) image sensor, an image acquisition card and a processor. A to-be-detected perforated plate workpiece is horizontally arranged in the transfer system; the special-shaped illuminating light source adopts a shed-shaped structure light source of which the top is arc-shaped and the horizontal section is rectangular, and is arranged at the periphery of a lens of the industrial CCD image sensor; the industrial CCD image sensor comprises a camera main body, a lens and an interface C; the camera main body adopts an industrial CCD camera and is connected with the lens through the interface C; the lens is arranged on the inner side of the special-shaped illuminating light source and is perpendicular to the to-be-detected perforated plate workpiece; the image acquisition card serves as the connector of an image acquisition part and an image processing part; the processor is used for realizing the operation of corresponding codes in a programming environment, calculating and marking the defect positions and intuitively displaying the defect positions. According to the detection device disclosed by the invention, the surface defect positions can be accurately displayed, and the workpiece defect information is acquired instead of human eyes, therefore, the detection accuracy is high.

The invention discloses a greenhouse with an adjustable light reflection device. The greenhouse comprises the adjustable light reflection device, a light-transmission layer, a heat preservation enclosing structure and a movable heat preservation quilt. The adjustable light reflection device is located in the greenhouse and close to the north face of the greenhouse. The movable heat preservation quilt is arranged on the light-transmission layer. The adjustable light reflection device comprises a plurality of reflector modules, a left supporting rod, a right supporting rod, a traction chain, driving gears and a motor cabinet. The reflector modules are parallelly placed in the vertical direction and connected with the traction chain through the gears. A motor in the motor cabinet drives the driving gears to rotate so as to adjust reflector angles. By adoption of the greenhouse, the solar energy utilization rate of the unit floor area is increased, meanwhile, the intensity of sunlight received by plants is improved, the heat preservation performance and the sunlight uniformity of the greenhouse are ensured, and the greenhouse is simple in structure, low in cost, attractive in appearance, and large in popularization potentiality.