3results about How to "Improve Optical Imaging Quality" patented technology

This application discloses a clamping tool and clamping system suitable for assembling capsule endoscopes. The clamping tool includes a base and a suction cup. The base includes a first end face and a second end face facing away from each other axially. A groove is provided on the first end face, and the base has a vent hole connecting the groove wall to the second end face. The suction cup is mounted on the first end face, at least covering the groove to form an adsorption space with the groove wall. The suction cup has a vent hole communicating with the adsorption space. When a vacuum is evacuated from the adsorption space through the vent hole, the suction cup pulls the capsule optical front cover to adhere to the groove wall. When the vacuum is broken from the adsorption space through the vent hole, allowing the suction cup to return to its initial state, the suction cup separates from the groove wall, and under the action of gravity, at least a portion of the suction cup protrudes from the first end face in a direction away from it. Through this method, this application can improve the assembly accuracy and optical imaging quality of capsule endoscopes.

The embodiment of the invention provides an optical module and head-mounted display equipment. The optical module sequentially comprises a first lens group and a second lens group along the light transmission direction, the focal power of the first lens group is positive, and the focal power of the second lens group is positive; the first lens group comprises at least two negative lenses, and at least one positive lens is arranged between the two negative lenses; wherein the sum of the focal power of the negative lenses / the sum of the intervals between the negative lenses is smaller than or equal to 0.01, and the interval between the negative lenses is the interval between every two adjacent negative lenses; the second lens group includes at least one positive lens.

The invention discloses a single-cell photoelectric detection chip based on rectangular sleeve three-dimensional focusing and a preparation method thereof, and belongs to the technical field of single-cell detection.The preparation method comprises the steps that 1, a mask is formed; step 2, corroding an alignment mark; step 3, spin coating of photoresist, pre-baking, extensive exposure, post-baking and hardening; step 4, spin-coating a photoresist, pre-baking, exposing, post-baking, not developing, cooling, then spin-coating the photoresist, pre-baking, exposing, post-baking, developing, and hardening to form a microfluidic mold; step 5, mixing the prepolymer of the polydimethylsiloxane polymer with a curing agent, and pouring the mixture on a mold after vacuum degassing; and step 6, aligning and bonding two pieces of PDMS with the same structural parameters, and then bonding the two pieces of PDMS with the quartz substrate. According to the invention, high-sensitivity electrical detection and high-resolution image detection can be carried out at the same time, the problem of imaging blurring caused by a three-dimensional focusing channel manufactured by 3D printing is solved, the manufacturing efficiency is improved, and the manufacturing cost is reduced.