A portable flexible collapsible non-penetrable breakaway blunt bolt stop target in combination with a quick release fastener is provided. The target is provided along with a quick release fastener that can be attached to a stand and when impacted by a bolt shot from a crossbow the target is released from the stand and falls to the ground along with the bolt thus preventing damage to the bolt and to the crossbow. The target is foldable and capable of being rolled up to be carried in a pocked or easily carried on or stored in a crossbow.

A throwing game target having a back plate and multiple blades extending outwardly from the back plate. The blades may be comprised of horizontal and vertical blades. In such embodiments, the blades may be arranged in multiple groupings of three blades with at least one horizontal blade and one vertical blade.

The disclosure provides a dartboard, a dart scoring device and a dart scoring method. The dartboard comprises a target board body; and a projection device disposed on the target board body and configured to project a target image around a periphery of the target board body to form a virtual target. The target board body according to the disclosure has a small size and is convenient to carry and use.

A throwing game target having a back plate and multiple blades extending outwardly from the back plate. The blades may be comprised of horizontal and vertical blades. In such embodiments, the blades may be arranged in multiple groupings of three blades with at least one horizontal blade and one vertical blade.

Disclosed is a dart game apparatus providing a game mode interworked with a mobile game. The dart game apparatus may include: a controller recognizing information on a player and determining providing a reward to the player at least partially based on dart game execution data of the player; and a network connection unit transmitting data associated with the reward to at least one of a dart game server, a mobile game server, and a mobile terminal. The reward may include the reward for a game executed on the mobile terminal.

A practice aid for the game of darts comprises a shaped foam body that is configured for placement over a front face of a dartboard. The shaped foam body has at least one preformed cutout that defines an opening through which a target region of the underlying dartboard is visible.

A method of detecting the location of a dart pin is disclosed by the present disclosure, of which at least one embodiment provides a method of detecting a location of a dart pin attached to a dart target plate, including generating refocused images for multiple preset focal planes based on plenoptic videos of the dart target plate, which are obtained by using one or more cameras disposed around the dart target plate, generating, based on the refocused images, an extracted image for an object dart pin located in one focal plane of the multiple preset focal planes, and determining an attachment location of the object dart pin based on the extracted image.

To realize a sample lifting and lowering device capable of easily responding to increase of a diameter of a sample with light weight and high rigidity as well as with less directional dependence of rigidity as the sample lifting lowering device arranged above a horizontal movement mechanism. The sample lifting and lowering device includes first and second lifting and lowering mechanisms that lift and lower a sample stage to which the sample is fixed, first and second driving devices that drive the first and second lifting and lowering mechanisms to be lifted and lowered individually and a controller that synchronizes lifting/lowering operations of the first and second lifting and lowering mechanisms by the first and second driving devices by first and second control signals, in which the first lifting and lowering mechanism includes a first deceleration mechanism generating a first drive output obtained by decelerating a first drive input given from the first driving device in a direction different from a direction of the input, the second lifting and lowering mechanism includes a second deceleration mechanism generating a second drive output obtained by decelerating a second drive input given from the second driving device in a direction different from a direction of the input, and directions of the first and second drive inputs are different from each other as well as are not on the same straight line.

A lens for eyewear, the lens having a transmittance in a spectral range at least between 400 and 780 nm. The spectral range includes a first and a second color range which are different from each other. The first and second color ranges are each at least 50 nm broad. A first medium transmittance in the first range is higher than a second medium transmittance in the second range. A medium transmittance in the spectral range is above 35%. A maximum transmittance value in the spectral range is above 70%. The second medium transmittance is below 20%. A maximum value of transmittance within the second range is below 30%. The first medium transmittance is at least 15% higher than the second medium transmittance. Further, a method for providing a lens for eyewear for sports archery is provided. In particular, this may enhance visually targeting a sports archery target.

A multiple target electronic dart gaming machine includes multiple targets mounted on opposite sides of a game board of a target assembly that is housed in a cabinet of the gaming machine. A visual display video monitor provides players and observers with game scores and the like. The game board may be axially rotated between at least first and second positions so as to allow game play on the different targets which can be moved into and out of position to aid in gameplay such as deciding which player goes first. Additionally, the position of the game board may be detected through the use of a detector on or in the board.