A spring damper device comprising a directional spring (e.g., coil) having first and second ends, and defining an inner diameter region. A damper (e.g., viscoelastic polymer slug) comprising an element of elasticity configured to be situated within the inner diameter region of the directional spring. In response to a load on the spring damper device, the directional spring operates to compress, and the damper operates to dampen vibration associated with the load. The damper can comprise a viscoelastic damper comprising both an element of viscosity and the element of elasticity. The damper can be substantially coaxially aligned with the directional spring. Spring damper device(s) can be preloaded in a micro adjustment mechanism to account for positional adjustments between two structures (e.g., between a scope and a firearm), such that the spring(s) attenuate a shock impulse event (e.g., when firing), while the damper(s) attenuate vibration (e.g., to prevent damage the scope).

A spring damper device comprising a directional spring (e.g., coil) having first and second ends, and defining an inner diameter region. A damper (e.g., viscoelastic polymer slug) comprising an element of elasticity configured to be situated within the inner diameter region of the directional spring. In response to a load on the spring damper device, the directional spring operates to compress, and the damper operates to dampen vibration associated with the load. The damper can comprise a viscoelastic damper comprising both an element of viscosity and the element of elasticity. The damper can be substantially coaxially aligned with the directional spring. Spring damper device(s) can be preloaded in a micro adjustment mechanism to account for positional adjustments between two structures (e.g., between a scope and a firearm), such that the spring(s) attenuate a shock impulse event (e.g., when firing), while the damper(s) attenuate vibration (e.g., to prevent damage the scope).

A protective lens cover assembly is provided. A protective lens cover assembly comprises a body, a first lens cover and a second lens cover. The first and second lens covers are connected to the body. The first lens cover has a first set of securing structures and a second set of securing structures. The second lens cover also has a first set of securing structures and a second set of securing structures. The first set of securing structures of one of the first lens cover and second lens cover is configured to engage the second set of securing structures of the other of the first lens cover and second lens cover.

An optical sighting device includes an eyepiece positioned to receive optical radiation along an optical axis to produce a real exit pupil located remote from the eyepiece. The real exit pupil is positioned at an eye relief distance from the eyepiece along the optical axis. A digital signal processor determines an axial distance from the eyepiece to an eye positioned proximate the real exit pupil along the optical axis. An aperture stop is centered along the optical axis to direct the optical radiation in a direction of the eyepiece. The eye relief distance is based at least in part on a position of the aperture stop along the optical axis. The optical sighting device further includes an eye relief actuator to translate the aperture stop along the optical axis to null a spatial offset between the eye relief distance and the axial distance to the eye.

A firearm optic assembly has a body, the body having a first mounting facility configured to removably connect the body to the firearm, the body having a first receptacle configured to receive a first accessory, the body having a second mounting facility configured to removably receive a second mount portion associated with a second accessory offset from the medial plane, the second mounting facility including a pocket defined by one of the body and the second mount portion, the second mounting facility including a protrusion on the other of the body and the second mount portion, the protrusion being configured to be slidably or loosely received in the pocket, the protrusion having a free end and an opposed base end, the second mounting facility having an alignment facility including flared surfaces at the base end, and the flared surfaces being on opposing sides of the protrusion.

A method and device for image processing, a terminal and a storage medium. The method includes acquiring an image generated by an infrared sighting telescope arranged on a firearm; determining a grey level dynamic range of a preset first portion of the image; if a difference value between the grey level dynamic range value and the grey level of the preset second portion reaches a preset starting processing threshold, performing mean filtering processing on each pixel of the preset second portion to obtain a filtered grey level; and if the filtered grey level is greater than a preset grey level expectation threshold, processing the pixel, so that the grey level of the pixel is close to the grey level expectation value.

A method and device for image processing, a terminal and a storage medium. The method includes acquiring an image generated by an infrared sighting telescope arranged on a firearm; determining a grey level dynamic range of a preset first portion of the image; if a difference value between the grey level dynamic range value and the grey level of the preset second portion reaches a preset starting processing threshold, performing mean filtering processing on each pixel of the preset second portion to obtain a filtered grey level; and if the filtered grey level is greater than a preset grey level expectation threshold, processing the pixel, so that the grey level of the pixel is close to the grey level expectation value.

To enable a user to quickly adjust power ranges of a scope for firearms, a scope may be provided with a primary sight having a primary sighting line and a secondary sight having a secondary sighting line. The primary sight may include a plurality of optical elements disposed within the first housing and an elevation adjustment mechanism for adjusting a zeroed-in position of the primary sight. To prevent impedance of the secondary sighting line, the elevation adjustment mechanism may be located laterally of the primary sight rather than in the conventional position above the primary sight.

To enable a user to quickly adjust power ranges of a scope for firearms, a scope may be provided with a primary sight having a primary sighting line and a secondary sight having a secondary sighting line. The primary sight may include a plurality of optical elements disposed within the first housing and an elevation adjustment mechanism for adjusting a zeroed-in position of the primary sight. To prevent impedance of the secondary sighting line, the elevation adjustment mechanism may be located laterally of the primary sight rather than in the conventional position above the primary sight.

Disclosed herein are alignment features for scopes, such as alignment rings for telescopic sights. For example, a scope can includes a proximal end having an interior surface. The proximal end is that which a user aligns his or her eye in order to visualize a target. The scope may also include an alignment ring on the interior surface of the proximal end. The alignment ring assists a user in determining whether his or her eye is properly aligned with a longitudinal axis of the scope. With correct eye alignment, the alignment ring is not visible. With incorrect eye alignment, at least a portion of the alignment ring is visible, thus ensuring accurate sighting.