82results about How to "Limit angle" patented technology

A top support structure of a tent frame includes a top pivot holder (1), to which a plurality of support poles (10) are pivotally coupled. An elastic member (9) is provided between each support pole and the pivot holder. The elastic member folds and stores elasticity energy when the tent frame is folded and automatically springs the support poles when the elasticity energy is released. A control holder (2) is pivotally coupled to the bottom of the pivot holder, and the control holder has lock pieces (211) which can prop the support poles up to limit their rotation and release grooves (212) adjacent to the lock pieces which can release the limitation. On the top of pivot grooves (12) of the pivot holder are provided with position-limited devices (D) to prevent the support poles from rotating upwards.

A method of fabricating a hologram having a pattern made up of pixels in which a photosensitive material for forming a hologram is stacked on either a reflection-type hologram or a transmission type hologram. According to one aspect of the invention, the photosensitive material is stacked on a reflection-type relief hologram and reconstructing illumination light of a given wavelength is struck on the reflection-type relief hologram through the photosensitive material, so that interference fringes produced by interference of the light diffracted from the reflection type relief hologram and the incident light are recorded in the photosensitive material. According to another aspect of the invention, the photosensitive material is stacked on a transmission-type hologram, and reconstructing illumination light of a given wavelength is struck on a side of the transmission type hologram that is not opposite to the volume hologram photosensitive material, so that interference fringes produced by interference of light diffracted from the transmission type hologram and reference light incident on the photosensitive material are recorded in the photosensitive material. According to a third aspect of the invention, the photosensitive material is stacked on a transmission type hologram, and reconstructing illumination light of a given wavelength is struck on a side of the transmission type hologram that is not opposite to the photosensitive material, so that interference fringes produced by interference of light diffracted from the transmission type hologram and zero-order transmitted light are recorded in the photosensitive material, and a reflecting layer is provided on a back side of the photosensitive material.

The present invention discloses a hinge structure, comprising a pivot having a linking portion disposed with a circular axle axially and a smaller axle extending from the center of the front end of the shaft; a main frame having a connection portion which is formed axially to have a bush-like tube spring below for the insertion of the shaft, the tube spring being positioned to have a gap with the connection portion and one end of the wall of the tube spring being formed to have an notch; a cam member having a rotation part and fixed part between which is disposed with concurrent protruded and indented portions and which are installed inside the tube spring for the insertion of the axle, the rotation part being axially disposed with a protruded tenon, which is connected with the notch of the tube spring, and the fixed part being secured with the axle; and at least a resilient member insertingly connected with the axle and secured with the connection segment of the axle by an end enclosure, which presses and constrains the aforementioned parts.

A plaque tack can be used for holding plaque against blood vessel walls such as in treating atherosclerotic occlusive disease. The plaque tack can be formed as a thin, annular band for holding loose plaque under a spring or other expansion force against a blood vessel wall. Focal elevating elements and / or other features, such as anchors, can be used to exert a holding force on a plaque position while minimizing the amount of material surface area in contact with the plaque or blood vessel wall and reducing the potential of friction with the endoluminal surface. This approach offers clinicians the ability to perform a minimally invasive post-angioplasty treatment and produce a stent-like result without using a stent.

A focal position determining method determines a focal position of an objective lens focused on an observed target region in a specimen. The focal position determining method includes measuring any one of the focal position of the objective lens at a near point and the focal position of the objective lens at a far point or both so as to determine the focal position of the objective lens focused on the observed target region based on the measured focal position.

A multi-display stand configured to support a plurality of displays is provided. The multi-display stand includes a standing rod, a plurality of supporting arms, and a position-limiting member. The standing rod extends along a central axis. The supporting arms are disposed on the standing rod. Each of the supporting arms supports one of the displays. The position-limiting member is disposed between the standing rod and each of the supporting arms and includes at least one first position-limiting wall, at least one second position-limiting wall, and at least one tenon. Each of the supporting arms is radially rotatable about the central axis with respect to the standing rod between a first position and a second position. When the supporting arm is at the first position, the tenon abuts against the first position-limiting wall. When the supporting arm is at the second position, the tenon abuts against the second position-limiting wall.

A top support structure of a tent frame includes a top pivot holder (1), to which a plurality of support poles (10) are pivotally coupled. An elastic member (9) is provided between each support pole and the pivot holder. The elastic member folds and stores elasticity energy when the tent frame is folded and automatically springs the support poles when the elasticity energy is released. A control holder (2) is pivotally coupled to the bottom of the pivot holder, and the control holder has lock pieces (211) which can prop the support poles up to limit their rotation and release grooves (212) adjacent to the lock pieces which can release the limitation. On the top of pivot grooves (12) of the pivot holder are provided with position-limited devices (D) to prevent the support poles from rotating upwards.

A vehicle seat is provided, in particular motor vehicle seat, including a seat part (3) and a backrest (4) which are connected by recliner fittings (5) that are connected together by a shaft (7) connected to a hand lever (9) for unlocking each recliner fitting to adjust an angle of the backrest relative to the seat base. The fitting has a first fitting part (11) and a second fitting part (12) mounted to be rotatable relative to each other about an axis of rotation. The second fitting part has inwardly facing toothing which extends along at least a portion of an arc. A locking device with a driving element 27 is connected to the shaft and locking elements movable in response to rotation of the shaft.

A display stand for supporting a plurality of displays. The display stand includes an upright rod, a first supporting arm, a second supporting arm and a hinge joint member. The upright rod extends along an axial direction. The first supporting arm is for supporting a first display. The second supporting arm is for supporting a second display. The hinge joint member includes a first knuckle, a second knuckle, a first stopping surface and a second stopping surface. The first knuckle is disposed on the upright rod and the first supporting arm, and has a first cylinder and a first pivoting seat. The second knuckle is disposed on the upright rod and the second supporting arm, and has a second cylinder and a second pivoting seat.

A multi-display stand configured to support a plurality of displays is provided. The multi-display stand includes a standing rod, a plurality of supporting arms, and a position-limiting member. The standing rod extends along a central axis. The supporting arms are disposed on the standing rod. Each of the supporting arms supports one of the displays. The position-limiting member is disposed between the standing rod and each of the supporting arms and includes at least one first position-limiting wall, at least one second position-limiting wall, and at least one tenon. Each of the supporting arms is radially rotatable about the central axis with respect to the standing rod between a first position and a second position. When the supporting arm is at the first position, the tenon abuts against the first position-limiting wall. When the supporting arm is at the second position, the tenon abuts against the second position-limiting wall.