42 results about "Microscope light source" patented technology

The invention discloses a large-visual-field high-resolution microscopic imaging method based on optimal Hadamard codes. The large-visual-field high-resolution microscopic imaging method includes generating a required optimal Hadamard code matrix by a computer, taking an LED array as a microscope light source, displaying optimal Hadamard code patterns, shooting a series of low-resolution microscopic images of a to-be-tested sample at different illumination angles by a camera, solving the low-resolution microscopic image of the to-be-tested sample under single-angle illumination according to the optimal Hadamard code matrix, and compositing the large-visual-field low-resolution microscopic images into a large-visual-field high-resolution image by the aid of a frequency domain aperture synthesis technology. The large-visual-field high-resolution microscopic imaging method has the advantages that required exposure time of the camera can be shortened, system image collection speed can be increased, noise can be suppressed, and quality of image collected by a system can be improved.

The present invention relates to a method for measuring porosity of non-woven fabric and its measurement system. Said measurement method includes the following steps: firstly, sampling non-woven fabric, then cottecting non-woven fabric image, processing non-woven fabric image and measuring non-woven fabric porosity. Said measurement system includes microscope, light source, CCD camera, interface attachment, image collecting card and computer.

The present invention is concerned with a system for sorting target particles from a flow of particles. The system has a microscope, a light source, a CCD camera, microfluidic chip device with microfluidic channels, a detection apparatus for detecting the target particles with predefined specific features, a response generating apparatus for generating a signal in response to the detection of the target particles, and an optical tweezing system for controlling movement of optical traps, the optical tweezing system is operably linked to the response signal.

The present invention relates to a microscope capillary electrophoresis apparatus. It is mainly formed from capillary electrophoresis system, electrophoresis pattern collection system and image collection system, in which the capillary electrophoresis system includes two liquid bottles, capillary tube and high-voltage power supply, the electrophoresis pattern collection system includes light source and photoelectric converter, and the image collection system includes a microscope light source, a microscope, an image collector and an image display processor.

The invention relates to a method used for automatically controlling a digital microscope light source, comprising the steps as follows: 1) image data is obtained by an image sensor at the microscope end according to an exposure time value memorized in a register and the image data is sent to a controller, and then sent to a computer end by a microscope end transmission module; 2) the computer transmission module of the computer end receives the image data sent by the microscope end and sends the data to a processing module; 3) the processing module carries out the calculation according to the received data combined with prearranged arithmetic so as to work out the brightness value of the obtained image, and compares the brightness value with the image brightness value range and / or the exposure time value range which are memorized in a computer end memory unit in advance, and then an instruction generation unit generates an instruction used for displaying and outputting images and an instruction used for adjusting the exposure time or adjusting the brightness of the light source of the microscope; 4) according to the instructions generated in the step 3), the step 1) or step 5) is carried out; 5) the image is output and displayed.

The invention provides a system and a method for controlling the light source of a slit lamp microscope. In image previewing, the light source is adjusted to the brightness comfortable for eyes to carry out eye controlled focus through operating a brightness adjusting knob; and during image shooting, the brightness of the light source is maximal through the control of a CPU (Central Processing Unit). In image shooting, the duration of the maximal brightness of the light source is the same as the camera exposure time. After the images shooting is finished, the CPU controls the brightness of the light source to be restored to be brightness adjusted in image previewing. The brightness required in image previewing and imaging of the light source of the slit lamp can be considered at the same time, so that the definition of the shot images and the checking efficiency are improved effectively.

The power input to the light source of a microscope is varied as necessary to maintain a constant degree of detector saturation as the objective is moved toward a best-focus position. Focus is found by tracking the source's intensity necessary to maintain the detector irradiance at a constant level. The in-focus position is reached when the power input (and correspondingly the intensity of the light emitted by the source) reaches a minimum. The concept can be applied in a similar manner to minimize or eliminate tilt in a sample.

The invention relates to the technical field of fluorescent microscopes, and particularly relates to a multiband fluorescent microscope light source and color filter module group linkage device comprising a color filter module, a light source module and a control module. The color filter module comprises first code tags, and a first code reading sensor is arranged on a base. The light source module comprises second code tags, a second code reading sensor used for reading the second code tags is arranged on a fixing frame, and a driving device is connected on a rotating disc. The control module comprises a control mainboard which is respectively connected with the first code reading sensor, the second code reading sensor and the driving device. According to the fluorescent microscope light source and color filter module group linkage device, cost is reduced and debugging is convenient so as to be suitable for mass production and assembling; the appearance design is beautiful and user-friendly, and the internal structure is reasonable and convenient for assembling and debugging; and the diversified and customized requirements can be met, and the device has fool-proof measures and is low in weight, small in size, convenient for installation and reliable.

The invention relates to a device and a method for measuring focal length, rear cut-off distance and resolution of a non-coaxial optical system. The device at least comprises a light source, a parallel light tube, a curved mirror, an off-axis lens assembly and a measuring microscope. The light source is arranged at the front end of the parallel light tube. The focal plane of an objective lens between the light source and the parallel light tube is provided with a Porro board or a resolution board for supplying an object image plane. The curved mirror is arranged at the outlet side of the parallel light tube. The object image plane which is radiated by the light source emits a parallel light beam through the parallel light tube. The parallel light beam is received by the curved mirror. The parallel light beam enters the measuring microscope for the object image plane through the off-axis lens assembly. The measuring microscope is utilized for reading numbers and measuring. The device and the method can improve quality in measuring the focal length, the rear cut-off distance and the resolution of the non-coaxial optical system. Furthermore the device and the method can improve adjusting efficiency and reduce labor intensity of adjusting personnel.

A microscope includes: a first epi-illumination light-source unit to perform fluorescence observation; a second transmitted-illumination light-source unit to perform transmission observation, the second transmitted-illumination light-source unit including a light source provided with a light emitting element that emits excitation light and a fluorescent substance that emits fluorescence upon irradiation with the excitation light; and an incidence limiting section configured to limit an incidence of light on the light source from an outside of the second light source unit during a light-off period of the light emitting element. The incidence limiting section is configured to remove an incidence limitation of the light from the outside while the light emitting element is being lit.

The invention discloses an adjustable ophthalmic operation head fixator. The fixator comprises an outer ring, an inner ring is arranged in the outer ring, a first clamping block is arranged at one endof the inner ring, a second clamping block is arranged at the other end of the inner ring, a nut is arranged on one side of the second clamping block, and an adjusting screw rod is arranged in the nut. According to the fixator, a head position can be fixed, and the deflection of the head position of a patient is avoided; local anesthesia is a common operation mode for the ophthalmology department, has the advantages of being convenient, rapid, low in risk and the like, and meanwhile has the defects that the head position of the patient is prone to shift and suddenly move and the like; due tothe fact that an ophthalmic operation is performed under a microscope, the head position deviation or movement can cause the view movement and a not coaxial microscope light source during operation, and then difficulties are caused to the operation, and even serious complications are caused; and the fixator can fix the head position, prevent the deflection of the head position of the patient during operation, prevent the situation that an operator repeatedly adjusts the head position during operation to prolong the operation time, and reduce the complications during operation.

The invention provides a full-automatic slide making, dyeing and reading all-in-one machine. A slide making device comprises an insertion tube and a driving part used for driving the insertion tube; the dyeing device comprises a Pasteur dyeing module and a p16 dyeing module, the Pasteur dyeing module comprises a rotary liquid adding disc, the rotary liquid adding disc is connected with the liquid adding module through a liquid adding pipeline, the p16 dyeing module comprises a liquid transferring device, and the liquid transferring device has a translational degree of freedom and a rotational degree of freedom; the pipetting device is used for sucking the coloring agent and dropwise adding the coloring agent to the to-be-dyed glass slide; the automatic glass slide loading and recycling device comprises a flexible mechanical claw, a longitudinal screw rod sliding table and a transverse screw rod sliding table so as to realize X-axis, Y-axis and Z-axis movement; the flexible mechanical claw comprises mechanical claw fingers used for clamping objects in various shapes. The transmission device comprises a conveyor belt, a plurality of grooves are formed in the conveyor belt, the shapes of the grooves are the same as those of the glass slide clamps, and a round hole corresponding to the round hole of each glass slide clamp is formed in the center of each groove and used for illumination of a microscope light source during reading.

The power input to the light source of a microscope is varied as necessary to maintain a constant degree of detector saturation as the objective is moved toward a best-focus position. Focus is found by tracking the source's intensity necessary to maintain the detector irradiance at a constant level. The in-focus position is reached when the power input (and correspondingly the intensity of the light emitted by the source) reaches a minimum. The concept can be applied in a similar manner to minimize or eliminate tilt in a sample.

Disclosed are a fluorescence microscope light source apparatus and a fluorescence microscope capable of obtaining high-luminance light in a wavelength of 500 to 550 nm and having reduced background noise when a sample is observed. The fluorescence microscope light source apparatus to be installed in a fluorescence microscope including an illumination light bandpass filter includes: a laser diode that emits blue light as excitation light; a phosphor that converts the excitation light from the laser diode into illumination fluorescence with a wavelength region of 500 to 550 nm; an optical system that extracts the illumination fluorescence from the phosphor; a first condenser lens that condenses the excitation light onto the phosphor; a light guide body having one end face on which the illumination fluorescence is incident and the other end face from which the illumination fluorescence exits; and a second condenser lens that condenses the illumination fluorescence onto the one end face of the light guide body. A band-elimination filter that blocks or attenuates light, out of the illumination fluorescence, in a wavelength region including a transmission maximum wavelength and including no transmission minimum wavelength in the illumination light bandpass filter is provided on a light path of the illumination fluorescence.

The invention discloses a light source modulation method of a confocal scanning microscope. The method comprises: taking an intermediate linear part of a scanning window at an image window; and according to a quick resonance scanning mirror window and an image acquisition window, generating a modulation signal by using electronic hardware to realize real-time turning on or off of an imaging lightsource. Therefore, the light source power in a fast scanning direction is modulated to enable the radiation quantity of the light source to meet a linear distribution requirement on the biological sample surface; and the light source is turned off at the scanning area without data sampling, so that the light radiation amount of the sample surface is minimized.

The invention provides a phase difference microscopic imaging system which is simple in structure and low in cost. The phase difference microscopic imaging system comprises a microscope with an optical axis, a light source array, an image acquisition module and a calculation module. The microscope comprises an objective lens and a glass slide, the light source array is arranged at one side, away from the objective lens, of the glass slide and is used for emitting a first light beam and a second light beam which are symmetrically arranged relative to the optical axis, and the first beam and thesecond beam penetrate a sample and enter the microscope from the objective lens, wherein the first light beam and the second light beam form a limited angle with the optical axis after penetrating through the sample, the image acquisition module is arranged at the image side of the microscope and is used for acquiring a first image corresponding to the first light beam and a second image corresponding to the second light beam, and the calculation module is used for subtracting the gray value of the first image from the gray value of the second image and normalizing the gray value of the firstimage and the gray value of the second image to a [0, 255] gray interval to obtain a phase difference image. The present invention also provides an imaging method of the phase difference microscopicimaging system which is simple and is easy to operate.

The invention provides a light source lamp circuit on a stereomicroscope, comprising a fixed component and a slide component which are opposite; wherein the slide component comprises an object lens and an observation device. The invention is characterized in that the fixed component is formed by two independent ring-shaped conducting rails, the two ring-shaped conducting rails are respectively connected with a circuit board connected with the cathode and the anode of a power source; two spring thimbles and a plurality of lamp sets are arranged in the sliding component, the two spring thimbles are respectively connected with the cathode and the anode of an LED; when the slide component is arranged in the fixed component, the two spring thimbles are respectively contacted with the conducting rails for conduction, thus being convenient for a user to use the stereomicroscope at any angle; the light source can freely rotate along with main body without being restricted by a connecting wire, thus providing the main body with clear visual field; and if the LED is used as the lamp set, illuminating effect of the lamp set is improved.

This invention relates to light microscope cooling devices, including light-block. Characteristics:-set in the side of a mirror at its overall orientation for a cooling fin in the light microscope set at the bottom there is a hole in the bottom of the hole position on both sides of the door connecting a light socket; Set in the light microscope connected at the bottom of a heat sink. HEC also includes lamps in the door and the doors of the Halogen Lamps, lights and doors with lights door socket connections, Halogen Lamps from the light microscope set at the lower part of the hole is inserted inside. The present invention not only maintained a halogen lamps light microscope as the advantages, but also directional thermal insulation and the advantages of working long hours to resolve the microscope stent base fever and damage the issue of directional cooling effect as well, so, extend the life of the bulb; staff feel comfortable, simple and efficient operation of the replacement bulbs.

The invention relates to a method used for automatically controlling a digital microscope light source, comprising the steps as follows: 1) image data is obtained by an image sensor at the microscope end according to an exposure time value memorized in a register and the image data is sent to a controller, and then sent to a computer end by a microscope end transmission module; 2) the computer transmission module of the computer end receives the image data sent by the microscope end and sends the data to a processing module; 3) the processing module carries out the calculation according to the received data combined with prearranged arithmetic so as to work out the brightness value of the obtained image, and compares the brightness value with the image brightness value range and / or the exposure time value range which are memorized in a computer end memory unit in advance, and then an instruction generation unit generates an instruction used for displaying and outputting images and an instruction used for adjusting the exposure time or adjusting the brightness of the light source of the microscope; 4) according to the instructions generated in the step 3), the step 1) or step 5) iscarried out; 5) the image is output and displayed.

The present invention discloses a multi-waveband LED fluorescence microscope. The multi-waveband LED fluorescence microscope comprises a microscope main body and a multi-waveband LED light source system. The multi-waveband LED light source system is connected with a fluorescence light source interface of the microscope main body through a connection sleeve, the multi-waveband LED light source system comprises a LED base plate, N LED chips and / or LED chip sets, the LED base plate is provided with a first circumference, the N LED chips and / or the LED chip sets are arranged on the first circumference at intervals, the N LED chips and / or the LED chip sets comprise n wavebands with different central wavelengths, N>=n>=2, and the multi-waveband LED fluorescence microscope further comprises an optical path sub system and a control sub system, and the control sub system is configured to control a LED chips and / or LED chip set with selected wave length to face a first incident area of the optical path sub system. The multi-waveband LED fluorescence microscope can achieve automatic replacement for the LED chip with selected wave length, so that the usage is convenient.

The invention discloses automatic detection and report generation equipment for a textile fabric process sheet. The equipment comprises a machine shell, a bottom frame, a support, a fixing frame, a stepping motor, a lead screw fixing frame, a sliding table, a direct-current motor, a longitudinal force sensor, a transverse force sensor, a connecting rod, a digital fabric densimeter (a camera, a digital microscope, an LED light source, digital image processing and mode recognition), a three-dimensional motion platform, a computer, program software and a near-infrared spectrometer. According to the invention, the current situations of small batch, multiple varieties and large fabric detection and analysis requirements in the current textile industry are mainly solved, professional analysts can be liberated from monotonous and complex manual detection, and the equipment provided by the invention can realize intelligent detection of all items of a fabric process list. Due to the appearanceof the equipment, the automation level of national textile fabric design analysis is promoted, and an important contribution is made to enhancing the international competitiveness of textiles in China.

The present invention relates to an automatic adjusting system and an automatic adjusting method for a slit lamp microscope light source. The system comprises a light source, a control center, a PC machine and a camera, the light source is connected with the control center, and the control center controls brightness of the light source; and the control center and the camera are respectively connected with the PC machine and the PC machine is provided with an image analysis software. In a process of using a slit lamp, and the system can be used for automatically adjusting the brightness of thelight source without needing manual adjustment by an operator, thus avoids a current situation that the manual adjustment in the prior art has high requirements on operation experience of the operator, at the same time effectively improves adjustment speed and shortens adjustment time.

The invention discloses a confocal scanning microscope light source modulation method, which comprises the following steps of: modulating a light source by adopting a light source power modulator, andcarrying out nonlinear modulation on the transmitting end power of the light source through the light source power modulator; performing simultaneous power modulation on a forward scanning sampling window and a reverse scanning sampling window of the light source output end on the fast resonant mirror; or performing power modulation on the light source output end in the forward scanning samplingwindow; or performing power modulation on the light source output end in the reverse scanning sampling window. By adopting the method and the device, the purpose of minimizing the light radiation quantity on the surface of the sample can be achieved.

The invention discloses a confocal scanning microscope light source modulation method, which comprises the following steps of: modulating a light source by adopting a light source power modulator, andcarrying out nonlinear modulation on the transmitting end power of the light source through the light source power modulator; performing simultaneous power modulation on a forward scanning sampling window and a reverse scanning sampling window of the light source output end on the fast resonant mirror; or performing power modulation on the light source output end in the forward scanning samplingwindow; or performing power modulation on the light source output end in the reverse scanning sampling window. By adopting the method and the device, the purpose of minimizing the light radiation quantity on the surface of the sample can be achieved.

The invention discloses an LED lamp light intensity control method. An LED lamp comprises a plurality of LED lamp beads, and the LED lamp beads form a plurality of concentric annular LED lamp bead arrays; the LED lamp beads are arranged in parallel, and each LED lamp bead is correspondingly provided with one electromagnetic switch. When the LED lamp serves as a microscope light source, a certain annular LED lamp bead array 2 in the middle is controlled to be turned on through an electromagnetic switch, and the other annular LED lamp bead arrays 2 are dark to form differential imaging. When theLED lamp serves as an indoor light source and the LED lamp is controlled to be turned off, the LED lamp beads 1 are connected in series from inside to outside and are gradually turned off, and the total turn-off time is 0.5-5 min. The LED lamp is divided into a plurality of folding blocks through rotating shafts which are arranged up and down at intervals, so that the occupied area of the LED lamp can be reduced through folding, and the LED lamp is convenient to store and transport.

The invention discloses a light source modulation method of a confocal surface scanning microscope. The method comprises the following steps that the light source power in the slow linear scanning direction in the orthogonal direction is modulated; a modulation signal in the slow scanning direction is used to control a light source directly; or a light source power modulator is used to modulate the power in the output end of the light source; or the above two modulation manners are combined to modulate the light source. Thus, the light radiant quantity in the sample surface is minimized.

The invention discloses an integrated circuit internal short circuit failure lossless positioning method based on liquid crystal phase change. The method comprises the following steps of spraying a liquid crystal solution film on the surface of an integrated circuit chip, adding a polarized light lens at a light outlet of a microscope light source, adding a rotatable polarized light lens at an incident port of an objective lens, adjusting the angle of the objective lens polarized light lens, and conducting fixation when darkest light is observed from the eyepiece, attaching a heating plate tothe upper surface of the microscope objective table, placing the integrated circuit chip on the heating plate on the surface of the microscope objective table, placing the microscope objective table under the irradiation of a microscope polarized light source, and adjusting the microscope to enable a clear image of the integrated circuit chip to be presented in the eyepiece, providing electric signal excitation for the integrated circuit chip, so that an electric signal flows through an observation area, and gradually increasing the intensity of an electric excitation signal, observing the condition of a darkening area on the surface of the chip through the eyepiece, and taking an abnormal darkening area as an electric leakage area. Lossless positioning of internal short circuit failure ofthe integrated circuit chip is achieved, and the method has the advantages of being easy and convenient to operate and low in cost.