9 results about "Microscope light source" patented technology

This invention discloses an illumination device for solving the concave liquid surface effect in well plate imaging, belonging to the field of microscope light source technology. The device includes an inverted microscope illumination source and several annular light sources distributed in a dome-like pattern around it. The inverted microscope illumination source is composed of a central light source, a collimating lens, and a condenser lens in sequence. The annular light sources contain multiple LED beads, and the size of the rings matches the diameter of the microwells in a common cell culture plate, with adjustable angles. Through the synergistic effect of traditional vertical illumination and dome-shaped oblique illumination, this invention effectively improves the imaging quality of well plates, adapts to microwell plates of different diameters, is easy to operate, and highly practical, providing strong support for cell observation and other related work.

The application discloses a physical-based Fourier ptychographic light source pose correction method. The low-resolution image obtained through the Fourier ptychographic light path is affected by the pose deviation of the LED lamp plate in the system, thereby affecting the reconstruction quality. The application firstly constructs a physical model of the bright field to dark field boundary of the captured image for the microscope used, collects a group of low-resolution images of empty slides, screens out transition images with bright-dark boundaries, and calculates the bright-dark field boundary information of the transition images and the unbiased transition images generated by the model to solve the full pose parameters (including the distance from the sample, two orthogonal lateral displacements, the in-plane rotation angle and two tilt angles) of the misaligned LED array. The illumination angle can be accurately corrected, thereby ensuring the accuracy and uniformity of the illumination effect. It is verified through experiments that the application achieves good correction effect in practical application and enhances the robustness of the Fourier ptychographic reconstruction system to the light source position deviation.

The utility model discloses a microscope light source automatic turn-off system, which comprises a light source body, an induction assembly, a timing assembly and a processing assembly, the induction assembly, the timing assembly and the light source body are all electrically connected with the processing assembly, and the light source body is in linkage fit with the induction assembly and the timing assembly through the processing assembly. The induction assembly comprises a magnetic attraction mounting seat and a magnetic attraction type distance sensor which are in magnetic attraction fit, the magnetic attraction type distance sensor is detachably fixed to the edge of the working platform right in front of the microscope through the magnetic attraction mounting seat and used for detecting the distance between a human body and the microscope, and whether a person uses the microscope or not is judged by detecting the distance between the human body; the lamp source is automatically turned off when people exceed the distance for a certain time, and the service life of the microscope lamp source is prolonged.

The utility model relates to the technical field of light sources of high-power microscopes, in particular to a multipurpose automatic light source of a high-power microscope, which comprises a multipurpose automatic light source main body, a top cover is arranged on the multipurpose automatic light source main body, a communicating hole is arranged at the upper end of the top cover, and the upper end of the top cover is connected with a microscope connecting seat with a circular ring structure. The microscope connecting base and the communicating hole are of a coaxial structure, a first collecting lens and a second collecting lens which are connected with each other are arranged in the top cover, and a first collecting lens groove and a second collecting lens groove which are perpendicular to each other are formed in the first collecting lens and the second collecting lens respectively. A light splitting piece inclined by 45 degrees is installed between the first light collecting lens groove and the second light collecting lens groove in a clamped mode. According to the multi-purpose automatic light source of the high-power microscope, double light source light paths are built in, and the illumination light paths are kept on the same axis through the beam splitter, so that any illumination mode can be freely controlled by software, the multi-purpose automatic light source can adapt to high-power microscopes of different brands, and the cleanliness detection efficiency is improved.

The application discloses a quantitative phase microscope device based on non-rotationally symmetric light source illumination and an imaging method, and belongs to the technical field of optical imaging. The device comprises a cylindrical lens optical system, an electric rotation control unit, an image acquisition unit and a computer processing unit. The cylindrical lens optical system is arranged in a device shell and comprises an optical lens group for converting a microscope light source into an asymmetric illumination light beam and a lens barrel for fixing the optical lens group. The electric rotation control unit drives the lens barrel to rotate around an optical axis to realize multi-directional asymmetric illumination. The image acquisition unit is used for acquiring a light intensity image modulated by a sample. The computer processing unit is used for controlling rotation and acquisition, and performing phase inversion and three-dimensional topography reconstruction on the image. The device has simple structure, high illumination efficiency and strong compatibility, and is suitable for high-precision quantitative phase imaging of transparent and semi-transparent samples.

A microscope includes a light source positioned at a light source plane of the microscope, a pattern projection component positioned at a light stop plane of the microscope, and an optical sensor positioned at an image plane of the microscope. The light source is configured to transmit light to an object plane of the microscope via the pattern projection component. The pattern projection component is configured to, when the light interacts with the pattern projection component, cause the light to carry a pattern. The pattern, when the light transmits from the pattern projection component to an object positioned at the object plane, is projected on a region of the object.

The invention relates to a method for a microscope to automatically follow a light source, and belongs to the technical field of operating microscope control. According to the third machine vision-based microscope light source automatic following method provided by the invention, through a target identification and motion control algorithm, microscope light source automatic following, illumination direction adaptive adjustment and motion error compensation are realized, and the stability and precision of illumination in an operation are improved. The core concept of'virtual intersection '(P1) is introduced, so that the control logic of the double-arm robot is fundamentally reconstructed. Moving targets of two mechanical arms needing to be independently controlled are unified and simplified into control over a single virtual point. One hand of a doctor is liberated, so that the doctor can be used for other auxiliary operations, and a higher guarantee is provided for success of an operation.

The utility model relates to the technical field of microscopes, and discloses a microscope light source heat dissipation mechanism which comprises a metal framework, an installation shell is installed outside the metal framework, an LED light source lamp is installed on the inner wall of the installation shell, a heat dissipation mechanism is installed outside the LED light source lamp, the heat dissipation mechanism comprises a plane portion, and the plane portion is provided with a light source. The LED light source lamp comprises a plane part, side face parts are arranged on the two sides of the plane part, mounting holes are formed in the outer portion of the plane part, notches are formed in the two sides of the plane part, one side of the plane part is tightly attached to a shell of the LED light source lamp, and the side face parts are tightly attached to the inner wall of the metal framework. According to the LED light source lamp, the plane part is tightly attached to the outer shell of the LED light source lamp, the side face part makes contact with the inner wall of the metal framework, the contact area can be effectively increased, and therefore the heat dissipation efficiency is improved, and the contact area of the side face part and the metal framework is larger than the contact area of the plane part and the outer shell of the LED light source lamp.

The utility model belongs to the technical field of optical microscopes, and discloses a display control device of a microscope light source, which comprises a light supplementing light source, a light supplementing angle adjusting assembly, a brightness adjusting assembly and a light source energy source. A light supplementing light source adopts a white light LED lamp bead combined with an inverted conical light cup, so that the light utilization rate is improved; the light supplementing angle adjusting assembly achieves multi-angle free steering of the light source through a rotating shaft and an adjusting handle, and the sample observation requirement is accurately met. The brightness adjusting assembly is based on the PWM principle, utilizes a metal film potentiometer and an IRF520 MOS, realizes 0-100% linear dimming on the premise of ensuring stable color temperature, and prevents the observation effect from being influenced by color temperature shift. The light source is powered by the battery compartment to ensure the use flexibility of the device. All the components operate cooperatively, light shadow and reflection interference are effectively eliminated, the microscopic image definition and color rendition degree are remarkably improved, and an efficient and convenient illumination solution is provided for scientific research, teaching and other scenes.