657results about How to "Observe clearly" patented technology

A diagnostic / treatment instrument such as a handpiece equipped with a dental treatment tool, etc. is provided with a light radiating unit that can distinctively detect a dental lesion, to facilitate the treatment of the lesion. A light source for emitting light that can distinctively detect the lesion is mounted near the head of the handpiece to which a diagnostic / treatment tool can be attached. The light emitted from the light source illuminates an area forward of the diagnostic / treatment tool. Alternatively, the light source comprises a plurality of light-emitting devices which are arranged around the periphery of the forward end of the handpiece head in such a manner as to encircle the diagnostic / treatment tool, and radiates light to illuminate the area forward of the diagnostic / treatment tool. When an oral cavity is illuminated with the light, a clinician can observe reflected fluorescent light by using a filtering function that passes the fluorescent light, and thus the clinician can perform the treatment while checking the lesion.

What is disclosed is a laryngoscope comprising a handgrip, a blade, and an image-capturing unit for capturing an image. The blade is connected to the handgrip, and the image-capturing unit is movably secured on the blade; in use, users may adjust the view of the laryngoscope by moving the image-capturing unit.

The present invention relates to a novel, small-scale, electrophoretic separation system based on photodefined polymers and electrode-defined sample injection. Diffusion and displacement coefficients may be modified by varying the gel concentration, the intensity of the incident UV radiation and the temperature at which the gel is run. The device is an major advance over current technology since it provides for a significant reduction in size of the micro-electrophoresis apparatus and a significant cost savings.

The invention provides a positioning and splicing device of an indicating grating, belongs to the technical field of photoelectric measurement, and aims to conveniently and accurately position the indicating grating before the indicating grating is spliced on an indicating grating carriage. The device comprises a supporting mechanism, a charge coupled device (CCD), an objective lens, a guide rail mechanism, a left pressing needle, a right pressing needle, a regulating mechanism, a light source, the indicating grating and a main grating, wherein the lower end of the CCD is connected to the objective lens; the guide rail mechanism is arranged below the objective lens and is fixedly arranged on the regulating mechanism; the left and right pressing needles are fixedly arranged on the guide rail mechanism; the indicating grating is pressed on the main grating by the left and right pressing needles; the main grating is fixedly arranged on the regulating mechanism; the regulating mechanism is fixedly arranged on a middle seat of the supporting mechanism; the light source is arranged at the bottom end of the supporting mechanism; and light emitted by the light source irradiates on the main grating and the indicating grating and is then imaged on the CCD via the objective lens. The positioning and splicing device is applied to the structure mounting process of a grating ruler, and the reliability of a grating ruler measuring mechanism is guaranteed.

The invention discloses an air-cooling device for a printing head of a 3D (three-dimensional) printing machine. The printing head is arranged at a slide rod of the printing machine in a sleeving manner by lug rings and axially slides; the air-cooling device is integrated on the printing head; a wire conveying mechanism is arranged in a seat housing cavity body of the printing head; a cooling fan aligned to the wire conveying mechanism is arranged on one axial side of the seat housing cavity body; a printing head nozzle is formed in the lower part of the seat housing cavity body; the seat housing cavity body is provided with air guide pipelines leading to the printing head nozzle. The air-cooling device improves heat dissipation of the printing head of the printing machine and enables occupied working space of the printing head to be further reduced, thereby being favorable for improving the portability of the folding-type 3D printing machine.

The invention is about the display method for waveform of digital oscillograph and the digital oscillograph. The invention is to collect the external dummy signal and transfer it to digital signal; receiving the digital signal and storing it as the digital signal data; receiving external response and generating the first window and second window data, according to which it gets the first and second window pantograph ratio; reading the digital signal data and pantograph the data according to the ratio to generate the first and second displaying data; the waveform and / or data corresponding to the first displaying data is displayed on first window; the second data is displayed on second window. So it can display the waveform on two windows in different time to make the oscillograph intuition and convenience.

An X-ray photography apparatus including: a turning arm that supports an X-ray generator and an X-ray detector while the X-ray generator and the X-ray detector are opposed to each other so that a head of a patient can be interposed therebetween; and a moving mechanism that turns the turning arm about a turning axis with respect to the head and moves the turning arm in a direction perpendicular to the turning axis with respect to the head. The X-ray photography apparatus further includes: an image processor that generates an X-ray image based on an electric signal output from the X-ray detector; and a photographic region designation receiving part that designates part of a row of teeth along a dental arch as a pseudo intraoral radiography region. The image processor generates plural tomographic images by applying convolution and filtered back projection to X-ray image data obtained by pseudo intraoral radiography.

The invention relates to a positioning device of an absolute type grating ruler photoelectric receiving device, belongs to the technical field of photoelectric measurement, and aims at solving the problems of poor reliability and low precision of a grating measuring mechanism in the prior art. The positioning device comprises a support structure, a device adjusting mechanism, an indicating grating adjusting mechanism and a CCD (charge coupled device), wherein the support structure consists of a base, a middle seat, an upper end support frame and a connecting rod, the device adjusting mechanism is fixedly arranged on the upper end support frame, and realizes the fixation and the adjustment of the photoelectric receiving device, the indicating grating adjusting mechanism is fixedly arranged at the middle seat and realizes the fixation and the adjustment of an indicating grating, the CCD is fixedly arranged on the base, the upper end of the CCD is connected with an objective lens, the relative positions of the photoelectric receiving device and the indicating grating are observed through the objective lens and the CCD, and further, the bonding is realized. The mechanical fine adjustment is adopted, in addition, the imaging of the CCD in a computer is utilized for observation, the operation is convenient, the observation is clear, the adjustment time is greatly reduced, and the reliability and the precision of the whole grating ruler measuring mechanism are also improved.

The invention discloses a method for image scaling and a pair of AR (Augmented Reality) glasses based on the method. The method comprises the following steps of S0 receiving image information and entering the step S1; S1 carrying out regional division and numbering on a screen of the AR glasses and then entering the step S2; S2 selecting an image region which needs amplification, showing the image region independently, screening out other image information and entering the step S3; S3 magnifying and displaying the selected image region, if continuing to amplify, returning to the step S2, if switching to a standby state, entering the step S4; and S4 shrinking the currently displayed image and moving to a corner of the screen of the AR glasses. According to the method provided by the invention, virtual and reality scenes are combined to facilitate people work and bring good life experience to people.

A method for evaluating an electrophotographic photoconductor in terms of filming occurrence is provided that comprises irradiating UV rays having a wavelength of 200 nm to 420 nm onto the electrophotographic photoconductor and measuring fluorescence emitted from the electrophotographic photoconductor.

The invention discloses a low signal to noise ratio image reconstruction method and system. Implementation of the low signal to noise ratio image reconstruction method includes the steps: averaging an original image to obtain an average image according to the phase and the direction; separating the average image according to the phase difference to obtain a separate image, and performing normalization processing on the separate image to obtain a normalized separate image; calculating the illumination optical vector estimated by a normalized separate image cross-correlation function; translating different normalized separate images according to the estimated illumination optical vector, and estimating the modulation intensity and the initial phase of the illumination optical vector; decomposing the original image to obtain a decomposed image, and according to the estimated illumination optical vector, performing frequency moving on the decomposed image to obtain a frequency moving image; performing Wiener filtering on the frequency moving image to obtain a super-resolution image; and performing establishing a target function, performing iteration updating on the target function, and obtaining a denoised image when the error is less than the preset value. The low signal to noise ratio image reconstruction method and system can improve the current time resolution, and can reduce the artificial artifact in the image.