Abstract: An optical system affixed to an electronic apparatus is provided, including a first optical module, a second optical module, and a third optical module. The first optical module is configured to adjust the moving direction of a first light from a first moving direction to a second moving direction, wherein the first moving direction is not parallel to the second moving direction. The second optical module is configured to receive the first light moving in the second moving direction. The first light reaches the third optical module via the first optical module and the second optical module in sequence. The third optical module includes a first photoelectric converter configured to transform the first light into a first image signal.

Abstract: An air flow adjusting device of air gun, includes a piston sleeve having a rod body, the rod body is provided with a cushion located between a base and an external threaded portion of the rod body, the external threaded portion is threaded with an internal threaded portion of an adjusting knob, the cushion is abutted against the inner wall of the adjusting knob. Thereby, by setting the cushion, the adjusting knob has the buffer effect, so that the moving range will not be too large, ensure the accuracy of adjustment, and the adjusting knob can be rotated by defining a slot in the piston seat, so that the function of adjusting the air flow rate can be achieved without using any tool, improving the operational convenience.

Abstract: A ballistic adjustment device for toy gun, includes a mounting member having a bearing portion located above a bullet barrel. When the mounting member moves up and down, a pressure member is released from or pressed against the bullet barrel to move a protruding portion of the bullet barrel up and down. A connecting rod is pivoted to a lower part of the mounting member and has a press portion that is pressed against an inclined surface of the rotary member. The rotary member is in communication with a magazine seat, such that the rotary member can be turned only by extending the operator's finger into the magazine seat, which makes the press portion moves high and low on the inclined surface, so as to move the connecting rod and the mounting member, and make the bearing portion move up and down to achieve the function of adjusting the trajectory.

Abstract: An air flow adjusting device of air gun includes an adjusting assembly having an adjusting knob and a locking seat; a piston sleeve provided with a rod body inserted into the locking seat and threaded with the adjusting knob; a spring arranged between the locking seat and a base of the rod body. One end of the adjusting knob is locked to the locking seat. By rotating the adjusting knob, the relative locking position of the adjusting knob and the locking seat can be changed, and the total length of the piston sleeve and the adjusting assembly can be adjusted; thereby, the adjusting knob can be rotated by to defining a slot in the piston seat, and the function of adjusting the air flow rate can be achieved without using any tool, so that the operation of adjusting the air flow can be simplified, which improves the operational convenience of the device.

Abstract: A butt structure for a toy gun includes: a butt body, a rear part, two guide rods and a press locking device. The guide rods are inserted at two sides of the butt body and can move together with the rear part. The press locking device is connected to the butt body. The guide rods each include a front cavity and rear cavities. Each of the front cavities includes a hook portion on an inner front surface thereof, and each of the engaging ends includes a front protrusion. Operating the press locking device can make the engaging ends engage with the front or the rear cavities, so as to adjust the position of the rear part back and forth. When the hook portions engage with the front protrusions, the guide rods are fixed to prevent the rear part from being pulled out backwards.

Abstract: A gun barrel unit for a toy gun includes: an inner barrel and an outer barrel, the inner barrel is axially inserted in the outer barrel, at least one rotary member is provided between the inner and outer barrels to allow for rotation of the inner barrel with respect to the outer barrel, and at least one eccentric weight is fixed in the inner barrel. The inner barrel is pivotable and the inner barrel is provided with the eccentric weight, so that even when the gun is held in an inclined position, the inner barrel still can return to a non-inclined manner to ensure the ballistic trajectory stability when firing. Besides, an engaging assembly is provided at the rear end of the inner barrel, so that the inner barrel can still be fixed to the outer barrel in a fixed manner to facilitate ballistic trajectory adjustment.

Abstract: A gun bolt assembly of air-soft pistol is disclosed to include an air cylinder, a slide carriage, a bridge member affixed to an inner rear side of the slide carriage, a piston affixed to the front side of the base of the bridge member and inserted through a rear opening of the air cylinder into the inside of the air cylinder, and a second spring positioned inside the air cylinder and the piston and axially connected between the air cylinder and the piston. Thus, the second spring will not fall off easily or wear quickly, allowing smooth displacement between the air cylinder and the piston without deviation from the accurate moving path.