3 results about "Porro prism" patented technology

The utility model provides a binocular image stabilization assembly and an image stabilization telescope. The binocular image stabilization assembly comprises a front fixing assembly, a moving assembly, a rear fixing assembly and a control circuit. The front fixing assembly and the rear fixing assembly are fixedly connected through a fastener, and the moving assembly is clamped between the front fixing assembly and the rear fixing assembly to form a sandwich structure. The front fixing assembly and the rear fixing assembly are each provided with three sets of driving magnetic steel, two sets of driving magnetic steel are horizontally arranged, and the other set of driving magnetic steel is arranged in the direction perpendicular to the front two sets of driving magnetic steel. Three groups of driving coils are correspondingly arranged on the moving assembly, and each group of driving coils is arranged between the corresponding driving magnetic steel of the front fixing assembly and the rear fixing assembly, so that the double-side magnetic steel type voice coil motor is formed, the structure of the magnetic steel assembly is optimized, the number of parts and the cost are reduced, the assembling and debugging steps are reduced, and the size of the image stabilizing module is reduced; the image stabilizing device has the advantages of high image stabilizing precision, high integration level, simple structure, convenience in production and high cost performance, and can be arranged in the Porro prism type binocular telescope to realize the optical image stabilizing function.

The invention discloses a gas detection system with a high-sensitivity H-type photoacoustic cell, the gas detection system comprises a photoacoustic cell assembly, a first cylinder assembly and a second cylinder assembly, the photoacoustic cell assembly comprises a shell (1), a first protruding part is arranged on the A side of the shell (1), a laser (2) is arranged in the first protruding part, a first lens (3) is arranged in the emergent direction of the laser (2), and a second lens (4) is arranged in the first lens (3). Similarly, a second protruding part is further arranged on the side A of the shell (1), a second lens (4), a third lens (5), a reference cell (6) and a pyramid (7) are arranged in the second protruding part, a Porro prism (8) is arranged on the side B in the shell (1), the side A and the side B are two opposite side faces, meanwhile, the Porro prism (8) can reflect laser emitted by the laser device (2) into the second protruding part, and the laser device (2) can reflect the laser emitted by the laser device (2) into the second protruding part. And a photoacoustic cell (9) is also arranged in the middle of the shell (1).

An image-stabilizing assembly adopts a sandwich structure, three sets of coils is disposed on a movable component, and magnetic steels on two sides of each set of coils are respectively disposed on fixed components. The movable component is separated from the fixed components by rolling balls and moves smoothly. The fixed components and the movable component are designed as an integrated assembly. During assembly, corresponding components are simply placed in sequence. This design has advantages of simple structure, easy assembly, convenient debugging, high reliability and high cost-effectiveness. It optimizes a structure of a magnetic steel component, reduces a number and cost of components, simplifies assembly and debugging steps, and decreases a size of an image-stabilizing module. It also features high stabilization accuracy, high integration, simple structure, convenient production, and high cost-effectiveness, and can be integrated into an inside of a Porro prism-type binocular telescope to achieve optical image stabilization.