Abstract:
The invention relates to a marking device for marking an object (1) with marking light. The marking device comprises a plurality of marking modules (10a - d) for emitting marking light, and a base unit (20) to which the plurality of marking modules (10a - d) is connected, wherein the base unit (20) comprises a control unit (25) for controlling the plurality of marking modules (10a - d). The plurality of marking modules (10a - d) comprises at least a first marking module (10a) and a second marking module (10b) which employ different marking technologies.
Abstract:
Die Erfindung betrifft einen Gaslaser mit einem Gebläse zur Erzeugung eines Gasstroms eines Lasergases sowie mindestens einen Wärmetauscher (20) mit einer Mehrzahl von Wärmetauscherrohren (21a, 21 b). Der Wärmetauscher (20) weist zwei Endplatten (22, 23) auf, an denen die Wärmetauscherrohre (21a, 21 b) an ihren gegenüberliegenden Enden befestigt sind, wobei die Endplatten (22, 23) Öffnungen (24a, 24b) für die Zuführung eines Wärmetauscherfluids zu den Wärmetauscherrohren (21a, 21 b) aufweisen. Die Wärmetauscherrohre (21a, 21 b) verlaufen im Wesentlichen quer zur Strömungsrichtung (30) des Gasstroms des Lasergases.
Abstract:
An apparatus and method for prevention of migration of mobile ions in a gyroscope. A dielectric barrier material layer is placed between a gyroscope body and one or more gyroscope components. The dielectric barrier material layer reduces the electric field formed in the gyroscope block, and thus reduces ion migration therein. The material may prevent mobile ions from reaching the cathode seal.
Abstract:
A unidirectional ring laser oscillator has a travelling wave unstable mode in one transverse dimension and either a waveguide or freespace gaussian mode in the orthogonal transverse dimension for coupling to large volumes of asymmetric cross section laser gain media. This device concept is shown to have unique and innovative features such as an exchange of left for right in the intracavity radiation profile without having to employ concave optics. Also, a high insensitivity to misalignment of one of the intracavity ring optics is achieved without having to suffer any deleterious effects associated with the high intensity of radiation normally encountered at an intracavity focal plane. Unidirectional operation of the laser is achieved using both intracavity and extracavity optical techniques.
Abstract:
A narrow band F 2 laser system having two laser subsystems. The first laser subsystem is a seed laser (100) and provides a very narrow band pulsed beam at a first narrow wavelength range corresponding to a first natural emission line of the F 2 laser system. This beam is injected into the gain medium of the second laser subsystem (102) in a first direction where the beam is amplified to produce a narrow band pulsed output beam. The seed laser (100) also produces a second pulsed beam at a second wavelength range corresponding to a second natural emission line of the F 2 laser. This line is injected into the gain medium of the second laser subsystem (102) in a second direction opposite said first direction. The second beam is amplified in the gain medium of the second laser subsystem of the second laser subsystem and depletes the gain medium of gain potential at the second wavelength range. Thus, the portion of light at the second wavelength range in the output beam (124) is greatly reduced.
Abstract:
A ring laser gyro uses anodes (4) plated with a high corrosive resistant material to extend the life of the ring laser gyro. The material creates an environment that will prevent degradation of the ring laser gyro cathode (6) and the mirrors (8) which in turn will lengthen the life to a ring laser gyro.
Abstract:
The anodes (40, 42) in a ring laser gyroscope are appropriately positioned for the easy starting of a gas discharge and maintaining the discharge at a lower electrical potential. Two operating anodes (40, 42) are placed symmetrical with and in close proximity to a cathode (30) while a third trigger anode (32) is placed in direct line of sight with the cathode. This configuration allows ease in starting without using a very large starting voltage.
Abstract:
A regenerative ring resonator In the path of a light beam includes a discharge chamber having electrodes and. a gain medium between the electrodes; an optical, coupler; and an attenuation optical system. The optical coupler is partially reflective so that at least a portion of a light beam impinging on the optical coupler from the discharge chamber is reflected back through the discharge chamber and at least a portion of the light beam impinging on the optical coupler from the discharge chamber is transmitted through the optical coupler, The attenuation optical system is in the path of the light beam within the resonator, and has a plurality of distinct attenuation states. Each attenuation state defines a distinct attenuation factor applied to the light beam to provide adjustment of an energy of the: light beam.
Abstract:
A regenerative ring resonator In the path of a light beam includes a discharge chamber having electrodes and. a gain medium between the electrodes; an optical, coupler; and an attenuation optical system. The optical coupler is partially reflective so that at least a portion of a light beam impinging on the optical coupler from the discharge chamber is reflected back through the discharge chamber and at least a portion of the light beam impinging on the optical coupler from the discharge chamber is transmitted through the optical coupler, The attenuation optical system is in the path of the light beam within the resonator, and has a plurality of distinct attenuation states. Each attenuation state defines a distinct attenuation factor applied to the light beam to provide adjustment of an energy of the: light beam.
Abstract:
The invention relates to a marking apparatus (100) for marking an object with laser light, comprising a plurality of lasers (10), in particular gas lasers (10), and a control unit for individually activating each of the lasers (10) to emit a laser beam according to a sign to be marked. A deflection device (30) is provided by which at least two laser beams are combined on a common spot.