36results about How to "Easy for visual observation" patented technology

A hand-held device detects the presence of a preselected substance in the breath. A deformable housing forms a test chamber for interacting an indicator reagent with the breath. The contents of the test chamber are exposed to the breath introduced into the chamber. The presence of a substance in the breath causes the indicator reagent to undergo a visually ascertainable change. The indicator reagent is secured within the test chamber between a pair of filter plugs having plural detents prevent slippage of the filters. Additional embodiments lower the user's risk of being cut by glass shards, prevent reagent inhalation, enhance the visual aspects of the device, and physically indicate the presence of breath flowing through the device.

A vehicular mirror device includes a housing which is comprised of two housing components at least partially opposed to each other, and which is adapted to cover a mirror from the front during traveling of a vehicle. A collar is integrally and projectingly provided on one of the housing components to extend so that it is superposed onto the other housing component at opposed portions of both the housing components, and a plurality of recesses are provided in a juxtaposed manner in a tip end of the collar. This suppresses to the utmost the generation of a wind roar due to traveling wind flowing into between opposed portions of the housing components.

The invention provides an electrocardiograph signal baseline filtering method, and belongs to the technical field of electrocardiographs. The method solves the technical problem that existing electrocardiograph filtering methods are low in efficiency. On the basis of a principle of a mathematical morphology filtering method, baseline drift is removed; in the process of filtering out the baseline drift, erosion operation, dilation operation, opening operation and closing operation are mainly used; the most basic concept of mathematical morphology is a structural element equivalent to a probe which is constantly moved for matching; under the situation that the data amount is not large, the baseline drift can be removed quickly and thoroughly, and signals with the frequency about 10 Hz are removed by a Butterworth filter. The electrocardiograph signal baseline filtering method has the advantages that the filtering efficiency is high.

An assembly structured to inflate a retaining or pressure cuff of a medical device of the type associated with artificial airway tube and concurrently monitor pressure therein. A pump assembly is movably connected to a casing and structured to force fluid flow, for inflation of a pressure chamber of the casing. An indicator member is visually accessible through a casing window and is variably positionable dependent on and indicative of existing pressure within the retaining cuff. The existing pressure within the pressure chamber is substantially equivalent to that within the retaining cuff thereby facilitating the variable position of the indicator member being indicative of pressure within the retaining cuff. A junction between the casing and an inflation lumen is structured to allow disconnection and prevent reconnection between the casing and the lumen.

A gooseneck frame is attached to the forward ends of a pair of lift arms which extend forwardly from a vehicle such as a skid steer vehicle with the forward end of the gooseneck frame being secured to the forward end of a silt fence installing machine so that the silt fence installing machine is pulled through the ground in advance of the vehicle. An improved coulter disk includes a cylindrical hub which limits the downward movement of the coulter disc with respect to the ground.

A method is disclosed for singulating die from a semiconductor substrate (e.g. a semiconductor-on-insulator substrate or a bulk silicon substrate) containing an oxide layer (e.g. silicon dioxide or a silicate glass) and one or more semiconductor layers (e.g. monocrystalline or polycrystalline silicon) located above the oxide layer. The method etches trenches through the substrate and through each semiconductor layer about the die being singulated, with the trenches being offset from each other around at least a part of the die so that the oxide layer between the trenches holds the substrate and die together. The trenches can be anisotropically etched using a Deep Reactive Ion Etching (DRIE) process. After the trenches are etched, the oxide layer between the trenches can be etched away with an HF etchant to singulate the die. A release fixture can be located near one side of the substrate to receive the singulated die.

The invention discloses a method of plating a ZnO film on the surface of a metal material, and relates to the field of material surface modification. The method comprises the following steps: polishing the surface of the metal material, cleaning, putting in a magnetron sputtering furnace, and placing zinc oxide in a target, wherein the inter-electrode distance of the metal material and the zinc oxide is 3-5 cm; vacuumizing the magnetron sputtering furnace until the vacuum degree is 1.0*10<-4>Pa-5.0*10<-4>Pa, inflating argon until the pressure intensity if 1-10Pa, cleaning and activating the metal material; inflating the mixed gas of oxygen and argon until the pressure intensity is 20-35Pa, the sputtering power is 50-80W and the temperature in the magnetron sputtering furnace is 320-380 DEG C, and keeping the temperature; and turning off the power source, vacuumizing the magnetron sputtering furnace, cooling to room temperature, and discharging out of the furnace. The method disclosed by the invention is simple in process and low in cost; and the ZnO film has obvious luminescence characteristic in the abrasion process, and is low in friction coefficient and good in abrasive resistance.

The invention relates to an image fusion method based on gradient domain guided filtering and improved PCNN, and belongs to the field of image processing. Firstly, the source image is detected according to the three complementary image features of image structure, sharpness and contrast saliency, and an initial decision graph is obtained. This decision graph model can effectively and accurately measure the saliency of features, greatly improving the method's performance. Then, in order to make full use of the spatial consistency of the image and suppress the block effect in the image at the same time, the gradient domain-oriented filtering is used to optimize the initial decision graph, and the optimized decision graph is obtained; secondly, the optimized decision graph and the image to be fused are weighted operation to obtain the optimal decision map; finally, in order to make the fused image more in line with the visual characteristics of the human eye, the improved PCNN is used to process the optimized decision map to obtain the final fusion map. The invention solves the problems of complex method, low efficiency and excessive dependence on manual design of the traditional image fusion method, and at the same time, the fusion quality of the image is further improved.

The invention relates to a spectacle lens with high color contrast and a preparation method thereof. The lens is composed of a substrate and a strengthening film layer; the substrate is prepared by mixing and processing high molecular polymer, dispersant or solvent and ultraviolet absorber; the lens is formed from the substrate, and then the lens is soaked in liquid silicide, The silicide is coated on the surface of the lens and then dried by heat to form a strengthened film layer. The high color contrast spectacle lens of the present invention can relatively improve the color contrast resolution of the eyes, and effectively filter most of the harmful ultraviolet rays, making it easier to distinguish the scene, thereby effectively reducing the fatigue of the eyes; The effect of "polarizing film layer" can effectively block the scattered light that is harmful to vision, making the viewing scene clearer, so as to achieve the effect of easy visual observation and rich colors.

The invention discloses an optical particulate material sorting machine. The optical particulate material sorting machine comprises a transfer unit, a particulate material inspection unit, a distinguishing unit as well as an eliminating unit, wherein the transfer unit is at least used for transferring qualified products, defective products and particulate materials containing foreign materials while continuously flowing; the particulate material inspection unit is at least used for simultaneously inspecting the qualified products, the defective products and the particulate materials containing the foreign materials which are transferred while continuously flow and, and the distinguishing unit is at least used for distinguishing whether the particulate materials are separation objects according to the inspection result obtained by the particulate material inspection unit and different color information of the inspected particulate materials; the eliminating unit is at least used for simultaneously eliminating the distinguished separation objects during continuous flow according to distinguishing information obtained by the distinguishing unit. The optical particulate material sorting machine provided by the invention sets a threshold value by effectively utilizing triple element color spatial information of RGB (red, green, blue) which is close to the visions of human beings to, and the judgment and a technology of an operator are not needed.

The invention relates to a frame extracting method for conversion from an ultrahigh-frame-frequency image flow to a standard analog video flow. A triggering signal of the standard analog video flow issynchronized with a triggering signal of the ultrahigh-frame-frequency image flow; simultaneously, the phase relationship between the triggering signal of the ultrahigh-frame-frequency image flow andthe triggering signal of the standard analog video flow is adaptively adjusted; a frame of image signal is extracted from the ultrahigh-frame-frequency image flow according to an analog video period;the conflict between an ultrahigh-frame-frequency image processing time sequence and a standard analog video display time sequence can be effectively avoided; and thus, conversion from the ultrahigh-frame-frequency image flow to the standard analog video flow is realized. The method is implemented in an engineering manner; on the premise that the ultrahigh-frame-frequency image flow processing time sequence is not influenced and hardware storage resource consumption is not increased, conversion from the ultrahigh-frame-frequency image flow to the standard analog video flow can be realized; visual observation can be conveniently carried out; and the frame extracting method disclosed by the invention has good engineering applicability.

The present disclosure relates to lighting devices for illuminating body cavities in surgical spaces during surgical procedures. The lighting device comprises: a flexible elongated member comprising a proximal end portion and a distal end portion; a lighting module disposed at the distal end portion of the flexible elongated member, the lighting module comprising a set of lighting elements for emitting light and a control module disposed at the proximal end portion of the flexible elongate member, the control module comprising a set of user input elements for controlling the set of lighting elements of the lighting module, wherein the lighting module moveable with the flexible elongate member to an illumination position in the surgical space such that light from the set of illumination elements is emitted into the body cavity for illumination; and wherein the flexible elongate member is configurable for maintaining the lighting module in the lighting position in the surgical space when the control module is disposed on a fixed structure.