8results about How to "Guaranteed imaging effect" patented technology

The application provides an optical camera lens, comprising a lens barrel, a first lens to a sixth lens, a first spacing element located on the image side of the first lens and in contact with the image side surface of the first lens, a second spacing element located on the image side of the second lens and in contact with the image side surface of the second lens, a third spacing element located on the image side of the third lens and in contact with the image side surface of the third lens, a fourth spacing element located on the image side of the fourth lens and in contact with the image side surface of the fourth lens, and a fifth spacing element located on the image side of the fifth lens and in contact with the image side surface of the fifth lens; the maximum field angle of the optical camera lens is greater than 110 degrees; the outer diameter D5s of the object side surface of the fifth spacing element, the inner diameter d5s of the object side surface of the fifth spacing element, the effective focal length f of the optical camera lens, and the maximum field angle FOV of the optical camera lens satisfy the following relationship: (D5s+d5s) / [f*tan(FOV / 2)]<2.0. The application solves the problem of poor edge imaging quality of the optical camera lens in the prior art.

The application provides an optical system, comprising: a lens barrel, an inner wall surface of the lens barrel is stepped along an extension direction of an optical axis of the optical system, and a distance from the inner wall surface of the lens barrel to the optical axis gradually increases from an object side to an image side of the optical system; first to fifth lenses sequentially accommodated in the lens barrel from the object side to the image side of the optical system, the fifth lens having a negative focal power; and at least five abutting members, wherein a fourth abutting member is in contact with an image side surface part of the fourth lens, and a fifth abutting member is in contact with an image side surface part of the fifth lens; wherein the effective focal length f5 of the fifth lens, the maximum thickness CP4 of the fourth abutting member, the distance EP45 from the image side surface of the fourth abutting member to the object side surface of the fifth abutting member along the optical axis, and the central thickness CT5 of the fifth lens satisfy: -40 < f5 / (CP4+EP45-CT5) < -5.0. The application solves the problem that high image quality and high stability are difficult to be considered in the prior art.

This application relates to an image alignment control method, apparatus, computer device, and storage medium. The method is applied to a smart device equipped with a first camera and a second camera, and includes the following steps: after entering a powered-on state, controlling the second camera to extend via a connecting rod; rotating the first and second cameras by an angle, and controlling the first and second cameras to capture images at each angle to obtain corresponding images; comparing the images captured by the second camera with the images captured by the first camera at the corresponding angles; determining the first deviation data for each second camera at each angle based on the image comparison results, and correcting and aligning the images captured by the second camera based on the first deviation data. This solution can achieve reliable image alignment, thereby ensuring the imaging effect of the device.

This application discloses an image exposure processing method, apparatus, device, and medium. The method includes: calculating a first average brightness value of the target image based on the brightness values ​​of image blocks obtained by dividing the target image; calculating the brightness standard deviation of the target image based on each brightness value and the first average brightness value; determining a second average brightness value of a first image block representing a region of interest (ROI) and a third average brightness value of a second image block representing a region of non-ROI based on the weight values ​​of the image blocks, and calculating a ROI difference value based on these values; performing exposure detection on the target image based on a first comparison relationship between the brightness standard deviation and the exposure tolerance value, and a second comparison relationship between the ROI difference value and the ROI difference threshold; and performing exposure processing on the target image based on the exposure detection results. This application combines the brightness standard deviation with the determination of whether there is a regional imbalance in exposure to determine the exposure detection results, thereby improving the accuracy of exposure detection and ensuring the imaging effect of the exposure processing.

This utility model relates to the field of confocal systems and electromagnetic equipment technology, and discloses a coil structure for use in a confocal system, placed on a confocal lens. The structure includes: a ring-shaped magnetic core with a placement notch; the placement notch is used to place a cell container, with the confocal lens located below the cell container; a hollow coil wound around the magnetic core; and a coolant circulation mechanism connected to the coil, which is used to introduce a cooling medium into the coil to cool the coil structure. This coil structure can be placed in the lens area to operate, avoiding excessive attenuation of the magnetic field strength. The hollow coil allows the coolant to circulate within it and carry away the heat generated by the coil, avoiding the risk of heating the lens when using the coil directly. It solves the compatibility problem between alternating magnetic fields and confocal microscopes, and provides a reliable solution for studying the effects and mechanisms of alternating magnetic fields at the cellular level.

The application relates to the optical field, in particular to an optical lens, an optical fingerprint module and an electronic device. The optical lens is configured between a display screen and an imaging surface. The optical lens comprises three optical lenses. The three optical lenses are a first lens, a second lens and a third lens arranged in sequence along an optical axis of the optical lens from the display screen to the imaging surface. The optical lens satisfies 1 <= TTL / airgap <= 1.4. According to the optical lens, the miniaturization of the optical lens can be realized under the condition of ensuring the imaging performance, and the cost is reduced.

The utility model discloses a prick reading instrument, and provides corresponding instrument equipment for realizing automatic operation of a skin prick test. According to the technical scheme, the prick reader comprises a case, an arm lifting cushion, an image acquisition mechanism and an industrial control computer, an opening is formed in the front end of the case and used for placing an arm into the case, the arm lifting cushion is arranged in a cavity in the front of the case, the image acquisition mechanism is arranged above the arm lifting cushion, and the image acquisition mechanism is connected with the industrial control computer. The image acquisition mechanism comprises a camera for acquiring a skin pricking area and a light source.

The utility model discloses a preparation device of an ultrasonic microbubble contrast agent for judging the position of a deep venous catheter, which is used for preparing the microbubble contrast agent and comprises a foam maker, an injector and a connector, and the injector is connected with the foam maker through the connector; the foam maker comprises a stirring bin, a driver and stirring fan blades, the stirring bin is connected with the injector through a connector, the stirring fan blades are arranged in the stirring bin, and the driver is arranged outside the stirring bin and connected with the stirring fan blades. According to the utility model, the foam maker is used for automatically foaming, so that rapid, stable and uniform foaming is realized, the consistency of the effect of a microbubble contrast agent is ensured, the foaming efficiency is higher, the quality is more stable, and the imaging effect of the contrast agent is ensured; after foaming is conducted through the foam maker, injection of the microbubble contrast agent can be directly conducted, operation is simplified, consumed time is shortened, microbubble ablation is avoided, and the quality of injection operation of the microbubble contrast agent is effectively guaranteed.