Abstract: The present disclosure relates to an imaging device having a night vision mode. The imaging device has a lens being capable of perform imaging according to received light and an infrared LED being capable of emitting infrared light as a light source for the lens in a night vision mode, both being controlled by a control circuit. The lens is allowed to perform imaging when the control circuit is turned on, and the lens is prohibited from performing imaging when the control circuit is turned off. The imaging device also has a switch and a baffle, the position of which triggers the switch to turn on and off the control circuit. The imaging device provides privacy protection and avoids the reduction of the lifespan of the infrared LED.

Abstract: The present disclosure relates to an imaging device and a camera having a night vision mode.

Abstract: A chemical-electromagnetic hybrid propeller with variable specific impulse. Fuel gas ejected out from a spraying tube of the chemical propeller through chemical propulsion enters an ionization chamber through a first magnetic mirror tube for ionization. The fuel gas after ionization is heated up by radio-frequency ion cyclotron waves in an ion cyclotron wave heating chamber so as to improve the kinetic energy. Then a second magnetic mirror tube is used, so that ions in the fuel gas after the ionization are heated up many times in a reciprocating manner between the magnetic mirror tubes, and ejected to generate forward propulsion force. By means of the propeller, the propulsion force and the specific impulse are greatly increased.

Abstract: A chemical-electromagnetic hybrid propeller with variable specific impulse. Fuel gas ejected out from a spraying tube of the chemical propeller through chemical propulsion enters an ionization chamber through a first magnetic mirror tube for ionization. The fuel gas after ionization is heated up by radio-frequency ion cyclotron waves in an ion cyclotron wave heating chamber so as to improve the kinetic energy. Then a second magnetic mirror tube is used, so that ions in the fuel gas after the ionization are heated up many times in a reciprocating manner between the magnetic mirror tubes, and ejected to generate forward propulsion force. By means of the propeller, the propulsion force and the specific impulse are greatly increased.

Abstract: A light emitting apparatus having a light transmissive envelope and a light emitting diode light source illuminating the interior of the light transmissive envelope. A thin film dissects the light transmissive envelope. The thin film is both refractive and reflective.

Abstract: A light emitting apparatus having a light transmissive envelope and a light emitting diode light source illuminating the interior of the light transmissive envelope. A thin film dissects the light transmissive envelope. The thin film is both refractive and reflective.