11 results about "Transmission illumination" patented technology

A polarizing film inspection device includes a jig on which a display device including a polarizing film and a display panel is seated, a polarizing filter disposed on an upper portion of an edge of the polarizing film and having a polarization angle different from a polarization angle of the polarizing film, a transmission lighting disposed on a lower portion of the edge of the polarizing film and emitting light toward the edge of the polarizing film, a camera disposed on an upper portion of the polarizing filter, and a control unit which determines whether the polarizing film is defective by analyzing an image captured by the camera.

The invention relates to a detection system and a detection method for a casting shell. The detection system comprises: a base; the rotating device is arranged on the base and used for fixing the shell and driving the shell to rotate around a first axial direction; the weighing device is arranged on the rotating device and is used for weighing the weight of the shell; the transmission lighting device is arranged on the rotating device, and the light emitting direction of the transmission lighting device is configured to face the interior of the shell; the image acquisition device is arranged on one side of the rotating device; the lifting driving device is connected with the image acquisition device and used for driving the image acquisition device to move in the direction parallel to the first axial direction. The weighing device obtains the weight of the shell, and the shell with unqualified weight is excluded; the rotating device drives the shell to rotate, the light path of the transmission illumination device points to the interior of the shell, and the lifting driving device drives the image acquisition device to move and acquires the optical image of the shell, so that the crack and thickness defect detection is realized, the automatic detection process is realized, and the detection efficiency and quality are improved.

The invention discloses a single-camera partitioned optical microscopic imaging device which comprises a bottom plate, a support is mounted at the top of the rear side of the bottom plate, and a mounting plate is mounted on the front side of the support; the sample table is mounted on one side of the top of the bottom plate and is used for clamping a sample; the transmission illumination assembly is mounted on the other side of the top of the bottom plate and is used for providing uniform illumination for the sample; and the microscopic imaging assembly is mounted at the bottom of the front side of the mounting plate. According to the invention, through the arrangement of the image separation assembly, the intermediate image of the sample can be separated into microscopic images of a plurality of channels, and the microscopic images can be imaged on the target surface of the camera in real time after being transmitted through different paths, so that a single camera can carry out multi-channel imaging without considering whether a plurality of cameras are aligned or not; according to the optical microscopic imaging device, the problem of difference of time resolutions of a plurality of cameras does not exist, the optical path of the optical microscopic imaging device is relatively simple in the propagation process, some very rapid dynamic events can be synchronously captured, and the use effect is good.

The invention relates to a household appliance having a housing and a door unit. A control unit and an accommodating container are arranged in the shell. A device opening is provided in the housing through which the receiving container can be accessed. The door unit is arranged on the household appliance in such a way that the appliance opening can be closed. The door unit includes a front door assembly and a rear door assembly. The front door assembly includes a first frame element. A window element is arranged between the front door assembly and the rear door assembly. The front door assembly at least partially overlaps the window element. The door unit includes a lighting unit disposed between the front door assembly and the rear door assembly within the door unit. The first frame element is at least partially light-transmissive and has a mask which has an opening and is arranged on the first frame element such that a first region of the first frame element is non-light-transmissive and a second region of the first frame element is light-transmissive. In an on state of the illumination unit, it transmits and illuminates the opening of the mask. The masked first frame element is arranged on the door unit in an edge region of the window element so as to at least partially overlap the window element.

The application discloses a kind of comprehensive microscopic measurement system and its measurement method of multi-parameter synchronous measurement, solve the measurement mode single of existing microscopic measurement system, cannot realize the demand of in-situ measurement multiple optical parameters problem, specifically including objective table, transmission illumination module, imaging module and reflection illumination module;Objective table is used to carry the sample piece to be measured;Transmission illumination module is set below objective table, to emit transmission measurement light to the sample piece to be measured on objective table;Reflection illumination module is set in the side of objective table, for emitting reflection measurement light;Imaging module is set above objective table, for receiving transmission measurement light or reflection measurement light, to measure corresponding parameter.The comprehensive microscopic measurement system and its measurement method can realize the imaging of light-transmitting / non-light-transmitting sample piece, three-dimensional topography, phase modulation quantity, polarization modulation quantity and other physical measurements, meet multiple measurement requirements, significantly improve measurement efficiency and multifunctionality.

The invention discloses a polarizing film inspection apparatus, a polarizing film inspection method, and an electronic device. The polarizing film inspection apparatus includes: a jig on which a display device including a polarizing film and a display panel is placed; a polarizing filter disposed at an upper portion of an edge of the polarizing film and having a polarization angle different from a polarization angle of the polarizing film; a transmissive illumination part disposed at a lower portion of an edge of the polarizing film and emitting light toward the edge of the polarizing film; the camera is arranged at the upper part of the polarization filter; and a control unit that determines whether or not the polarizing film is defective by analyzing the image captured by the camera.

The invention relates to a lighting device (1) for backlighting an at least translucent panel (2) of a motor vehicle, comprising: a housing (3) which forms a cavity (11) with an opening (12), said opening facing a rear side (R) of the panel (2) when the lighting device (1) is mounted as intended; a film layer structure (4) which closes the opening (12) and delimits the cavity (11) and an inner main surface (I) of which faces the cavity (11) and an outer main surface (O) of which faces, in the case of mounting as intended, the rear side (2r) of the panel (2); wherein the film layer structure (4) is designed such that the film layer structure (4) is opaque over the outer main surface (O) except for a light-transmissive lighting region (4b) which, when the lighting device (1) is mounted as intended, is arranged for backlighting the panel (2); a light source (6) arranged in the cavity (11), for transilluminating the film layer structure (4); a light guide (5) arranged in the cavity (11), for guiding light from the light source (6) to the lighting region (4b). The invention also relates to an associated arrangement (10) and to an associated use.

Provided are a reading device, a reading method, a program, an inspection device, and a printing system that can acquire preferred read data of a printed image for inspection or the like using the read data of the printed image. A reading device includes an image sensor, an imaging lens, a transmitted illumination device including a transmitted bright-field illumination device and a transmitted dark-field illumination device, and a transmitted illumination condition setting unit that sets transmitted illumination conditions according to a process performed on read data, and controls each of the transmitted bright-field illumination device and the transmitted dark-field illumination device according to transmitted illumination conditions.

A transilluminator system includes a transilluminator for illuminating a sample to be analyzed with light and a storage container. The transilluminator is removably positioned in the storage container, which includes a bottom surface having an aperture. The storage container is adapted to function as an imaging hood to block ambient light when the transilluminator is removed from the storage container and the storage container is inverted and positioned over the transilluminator. The system may further include additional transilluminator(s), one or more emission filters, etc.

Photographic film or microscopic objects are transilluminated with a rotating angular light flux of a high aperture ratio. This enables retrieving information with a higher spatial bandwidth than heretofore possible. Furthermore, this way of transilluminating reduces, both, image noise and aliasing at the sensor array. The fundamentally different way of extracting information provides an improved basis for digital restoration of photographic material.In microscopic applications scattering or fluorescent details can be better separated from transmitted image content.

This invention discloses a high-resolution laser speckle vascular blood flow imaging method and system. The method includes irradiating the tissue under test with laser transmission illumination, capturing a set of laser speckle images of the tissue under test with short exposure time and a set of laser speckle images of the tissue under test with long exposure time, and then fusing the two sets of images to obtain a blood perfusion index image and angiography image. Two sets of laser speckle images were acquired, one with short exposure time and the other with long exposure time. The laser speckle images with short exposure time can take into account the degree of scattering and the velocity of scattering particles in the tissue under test. After fusing with the laser speckle images with long exposure time, the contributions of scattered and non-scattered photons in the transmitted light are separated, which can significantly reduce the estimation error. It can not only resolve the flow velocity information of microvessels, but also achieve high-resolution imaging of fine microvascular structures.