10 results about "Visible laser" patented technology

A vibrationally enhanced fluorescence microscopy system includes a narrowband pulsed mid-infrared laser configured to excite selected chemical bond vibrations in a sample. A continuous-wave visible laser is coaligned with the mid-infrared laser and configured to induce fluorescence from at least one fluorescent reporter bound to the sample. An external pulse generator temporally synchronizes emission of the mid-infrared pulses with emission of the visible laser. A reflective objective is arranged to deliver the mid-infrared pulses to a focal plane within the sample. A water-immersion objective is coaxially aligned with the reflective objective and arranged to collect the fluorescence from the focal plane. A photon-counting detector is coupled to receive the collected fluorescence. Control electronics are configured to output a vibrational-contrast signal derived from counts produced by the photon-counting detector.

A laser alignment tool for flange fit-up includes tapered centering nuts that seat in flange bolt holes, a mounting bolt to secure the nuts, and a connector rod extending through the nuts. A yoke bracket at the laser end carries a rotatable laser housing with an integrated laser projection system. A manual actuator controls a clamping head that selectively locks the laser housing orientation. Multiple bubble levels on the nuts, rod, and housing provide comprehensive leveling verification. The tool projects a visible laser line across flange surfaces to provide precise visual alignment reference for positioning flanges relative to corresponding components, eliminating inaccuracies of manual alignment techniques while enabling single-operator use with 360-degree rotational adjustment capability for complex angular alignments in oil and gas applications.

The invention discloses an automatic calibration gas detection system and calibration method based on cooperation of mid-infrared light and visible light, and relates to the technical fields of optical detection, environmental monitoring, automatic control and the like, mid-infrared laser and visible laser are combined and emitted into a multiple reflection pool, and initial alignment is carried out based on visible laser of indicating light in an initial state; a high-reflectivity mirror bracket of the multiple reflection pool is provided with a stepping motor used for adjusting the angle of a high-reflectivity mirror, in the operation process, the signal intensity and the signal-to-noise ratio are monitored in real time, the stepping motor is driven to adjust the angle of the high-reflectivity mirror according to the monitoring result, and closed-loop automatic calibration is achieved. According to the invention, the invisible mid-infrared light path is visualized by using coaxial indicating light, so that the calibration time of initial installation and daily maintenance is shortened, the angle of the high-reflectivity mirror is automatically adjusted, the offset of the light path is compensated and the optimal detection state is kept during the operation of the system, and the long-term stability and reliability of the system are improved.

This invention discloses a laser irradiation therapy device based on metal film directional scattering beam expansion, comprising a chassis, a power supply module, an intelligent control module, a mid-infrared laser emission module, and a human-computer interaction component mounted on the chassis. It also includes a laser transmission module, a metal film directional scattering beam expansion and homogenization module, a visible laser emission module, a temperature detection module, and an adjustable support. During operation, the mid-infrared laser is transmitted to the beam-combining module via a light guide arm or flexible mid-infrared hollow fiber, while the visible laser is transmitted to the beam-combining lens via a visible light incident channel. The two lasers form a coaxial composite beam at the beam-combining lens, which together irradiates the metal film component. After directional scattering and beam expansion, the beam is output from the light outlet to the working area, forming an expanded and homogenized light spot. This therapy device, with the metal film component as the core optical shaping component, has advantages such as clear structure, adjustable light output direction, adjustable light spot area, visualized working area, and high safety.

The invention provides a flexible detection device and method for the direction of a drainage hole of a sliding rail sleeve. The device comprises a base, a transparent cover, a driving assembly, a rotating table, a loading and unloading assembly and a plug. The transparent cover is connected to the base and is provided with at least one tolerance ring pattern; the driving assembly is mounted on the base; the rotating table is connected to the output end of the driving assembly, and a plurality of loading and unloading assemblies are arranged on the rotating table in the circumferential direction; the plug is in threaded connection with the drain hole and provided with a laser pen, and the axis of the laser pen coincides with the axis of the drain hole. According to the invention, the plug with the laser pen is mounted in the drain pipe joint of the slide rail sleeve, so that visible laser indicating light replaces invisible drain hole pointing, and whether the drain hole pointing of the slide rail sleeve is qualified or out-of-tolerance degree is visually and quantitatively confirmed by combining a calibrated tolerance ring pattern of the drain hole pointing on the transparent cover; compared with an existing qualitative evaluation method of manual operation, the method is smaller in detection error and higher in efficiency.

The utility model relates to the technical field of photoelectronics, in particular to a multimode optical fiber coupling packaging visible light laser, which is characterized in that a TO tube seat assembled with a laser tube core, a low-temperature solder ring and a coaxial coupling jacket structural member are in interference pressing fit to form an assembly to be coupled, and low-temperature stepped reflow soldering is carried out to form a multi-mode optical fiber coupling packaging visible light laser. Inserting an optical fiber assembly comprising an optical fiber of which the front end face is a certain inclined angle or a wedge-shaped lens end face, a standard optical output interface connector, an optical fiber conical protective sleeve, a stainless steel tailstock and a ceramic ferrule into the front assembly to be coupled, and performing active coupling alignment through a high-precision coupling table under the condition that a laser is powered up; meanwhile, fine adjustment and locking are conducted through the fixing assembly, and then installation can be completed; in some low-cost application scenes, the technical problem that in the prior art, an optical fiber coupling packaging semiconductor visible light laser is obviously insufficient in the aspects of light beam quality, coupling efficiency, coupling packaging alignment and fixing is solved in the mode.

The invention discloses a gas detection device and method, and belongs to the technical field of gas detection. The gas detection device comprises a detection light path module, a visible laser module, a signal detection module and a gas absorption cell module, according to the invention, through a first spectroscope of a detection light path module, visible laser and a detection light beam are spatially coaxial, and a coupled light beam is multiplexed to a single-hole coaxial-configuration Herriott cell for long-optical-path absorption; and the signal detection module is integrally packaged by a reference end and a detection end detector. An additional beam combining device and an independent light path are not needed, the alignment state of the light path can be directly observed through visible light, the conflict between system miniaturization and debugging convenience is solved by combining the stability of a single-hole structure, unification of high integration, high stability and convenient debugging is achieved, high sensitivity of trace gas detection is guaranteed, and the detection efficiency is improved. The method is suitable for portable equipment and industrial on-line monitoring scenes.

The application discloses a praseodymium-doped visible light laser and a debugging method thereof. The laser comprises a double-end pumping module for generating pumping light; a praseodymium-doped gain medium module located on an optical path between the double-end pumping module and used for generating visible light laser under excitation of the pumping light; an auxiliary Kerr medium module comprising an undoped YAG crystal and located in a resonant cavity and used for enhancing Kerr lens effect of the visible light laser in the resonant cavity; and the resonant cavity comprising a plurality of end mirrors and an output coupling mirror and used for outputting the visible light laser from the output coupling mirror after oscillation in the end mirrors. By using the above system, the serious thermal effect generated by the tightly focused cavity of the mode-locked laser is effectively reduced, the nonlinear effect is enhanced to improve the mode-locked stability, the excellent combination of high-power output and ultrashort pulse characteristics is realized, and a reliable technical path is provided for practical application of the visible light ultrafast laser.

The utility model relates to the technical field of photoelectron testing, in particular to a low-cost TO18 and TO38 packaging visible light laser testing tool with a temperature control function, which comprises a fan with a temperature control function, an aluminum profile radiator, a semiconductor cooler with a central hole, a copper radiating seat, a radiating seat fixing assembly and a laser fixing assembly. TO18 and TO38 standard sockets are arranged between the aluminum profile radiator and the fan with the temperature control function, the fan with the temperature control function is further provided with an electrical interface transition PC board and an eight-pin electrical interface socket, the semiconductor cooler with the center hole is connected with the aluminum profile radiator, the copper radiating seat is connected with the semiconductor cooler with the center hole, and the copper radiating seat is connected with the aluminum profile radiator. The heat dissipation base fixing assembly is used for fixing a copper heat dissipation base, and the laser fixing assembly is used for fixing TO18 and TO38 packaged visible light lasers, so that the technical problems of high cost, complex structure and large size of a temperature control mode during testing of the lasers in the prior art are solved.