Abstract: In a sight device, an objective lens unit is disposed at an end of a housing. An ocular lens unit is disposed at another end of the housing and opposite to the objective lens unit. An erector unit is disposed between the objective lens unit and the ocular lens unit. A adjusting unit is movably disposed on the housing and radially propped against the erector unit to adjust the erector unit. A light emitting unit is disposed on the erector unit and includes a light source for emitting a light beam to an object. A light receiving unit is disposed on the erector unit and includes a light sensor for receiving the light beam reflected by the object. In any cross section of the housing, any point on the external surface of the housing is approximately equally distant from the second central axis.

Abstract: A circuit layout of laser source driving circuit includes a laser element, a first layout layer, a second layout layer, a first trace and a second trace. The first layout layer includes a first transistor. The second layout layer includes a second transistor, a capacitor, a first resistor and a second resistor. The first trace includes a first conductive line connecting the first resistor and the capacitor and a second conductive line connecting the capacitor and the laser element. The second trace includes a third conductive line connecting the second resistor and the second transistor, a fourth conductive line connecting the second transistor and the first transistor and a fifth conductive line connecting the first transistor and the laser element. A total length of the first trace and the second trace ranges from 13 mm to 19 mm.

Abstract: An aiming apparatus using digital magnification includes a main cylinder body, an object lens, an eyepiece, an erector device and a magnification ring. The main cylinder body includes a front end connecting to the object lens and a rear end connecting to the eyepiece. The erector device is disposed within the main cylinder body and includes an inner tube, an outer tube, a ring resistor board, a pogo pin and a parallel resistor. The inner tube jackets the outer tube. The pogo pin is disposed in the outer tube and contacts the ring resistor board. The ring resistor board connects to the parallel resistor in parallel. The magnification ring is rotatably disposed in the main cylinder body to rotate the outer tube with respect to the inner tube so as to change the contact position of the pogo ring on the ring resistor board.

Abstract: A sighting apparatus for displaying compensation position is described. The sighting apparatus includes a magnification adjustment module; a magnification generation module, which comprises a magnification pattern for undergoing a movement of the magnification pattern, and a sensing unit for detecting the magnification pattern to obtain a current magnification value; a display unit, for displaying the target in a reference position of the displaying unit when the sighting apparatus sights the target; and a controller coupled to the magnification generation module and the display unit respectively, for acquiring a first compensation position based on a range distance of the target, and for computing a ratio of the current magnification value and a predetermined magnification value of the sighting apparatus, wherein the controller generates a second compensation position based on the first compensation position and the ratio for displaying the second compensation position in the display unit.

Abstract: A sighting apparatus for displaying a magnification value is described.

Abstract: An auto light intensity adjustment system is provided. The auto light intensity adjustment system includes a light sensing unit, a charge/discharge circuit, a comparator unit and a light source module. The light sensing unit outputs a sensing signal according to an ambient light intensity detected thereby. The charge/discharge circuit is coupled to the light sensing unit for receiving the sensing signal, and generating a voltage signal with regular variation periods according to the sensing signal. The comparator unit compares the voltage signal to a threshold value signal, and outputs a result signal accordingly. The light source module modifies a light intensity according to the result signal. The invention automatically controls the light intensity according to the ambient light intensity.

Abstract: Provided is a sighting apparatus capable of displaying a value of magnification. The sighting apparatus includes a magnification generation module, a controller and a display unit. The magnification generation module includes a magnification pattern, which contains multiple values of magnification, and a sensing unit. When the magnification pattern is rotated, the sensing unit detects one of the magnification values from the magnification pattern. The magnification generation module generates a magnification signal corresponding to the magnification value. The controller functions to transform the magnification signal and the display unit displays the value of magnification corresponding to the magnification signal.

Abstract: An auto light intensity adjustment system is provided. The auto light intensity adjustment system includes a light sensing unit, a charge/discharge circuit, a comparator unit and a light source module. The light sensing unit outputs a sensing signal according to an ambient light intensity detected thereby. The charge/discharge circuit is coupled to the light sensing unit for receiving the sensing signal, and generating a voltage signal with regular variation periods according to the sensing signal. The comparator unit compares the voltage signal to a threshold value signal, and outputs a result signal accordingly. The light source module modifies a light intensity according to the result signal. The invention automatically controls the light intensity according to the ambient light intensity.