6 results about "Constant light" patented technology

The invention relates to the technical field of thin-wall cantilever beams, in particular to a vibration control system and method for a light-driven thin-wall cantilever beam. According to the invention, the elastic piece formed by connecting the LCE fiber in series with the elastic fiber is tightened between the free end and the fixed point of the thin-wall cantilever beam, and the infrared laser or the Fresnel lens is utilized to focus sunlight to emit strip-shaped light to irradiate the LCE fiber, so that a light-driven geometric self-switching mechanism is constructed; the system can drive the LCE fiber to generate periodic deformation under constant illumination, and then automatically switch inside and outside an illumination area through the system configuration change, and finally excite and maintain the self-excited vibration of the thin-wall cantilever beam, and the scheme gets rid of the dependence of a traditional vibration system on an external alternating power supply and a complex control circuit. Light simplification of the system structure and autonomy of energy supply are achieved, the problem of electromagnetic interference is effectively solved, and a new way is provided for design of a cable-free and miniaturized intelligent vibration system.

The invention relates to a swing type lamp capable of adjusting dynamic distribution of light in space, and belongs to the technical field of lighting decorative lighting. A transmission device is arranged, a decorative lighting assembly is connected with the output end of the transmission device and used for controlling the decorative lighting assembly to swing, and it needs to be explained that the light intensity released by the decorative lighting assembly is constant; due to the swinging of the decorative lighting assembly, the light intensity in the area is changed constantly, and the change can be captured by the cornea of the human eye and cannot be captured by the retina, so that the change of the light intensity cannot be perceived by the human eye, but the enzyme activity of the cornea epithelial cells can be remarkably improved, and the problem that the user is in a constant-light-intensity environment for a long time, and the user experience is poor is solved. And the enzymatic activity of the corneal epithelial cells of the user is obviously reduced.

The invention relates to the technical field of ophthalmology nursing, in particular to an amblyopia physiotherapy rehabilitation device for ophthalmology nursing, which comprises a master console, and a light brush instrument and training glasses which are connected with one side of the master console through a wire, a transparent plate is arranged in a groove, and a plurality of uniformly distributed black barrier strips I are fixedly mounted at the top of the transparent plate. And a rotating seat is rotationally installed in the main control table, a frame is fixedly installed at the top of the rotating seat, a plurality of second black blocking strips which are evenly distributed are fixedly installed in the moving frame, and a gap adjusting mechanism and an intermittent shielding mechanism are arranged in the rotating seat. The device has the advantages that a stimulation source is not in a normally-on state any more, eye fatigue of children is relieved, optic nerve adaptation of the children is avoided through light and shade alternation, stimulation is kept effective all the time, inhibition of amblyopia eyes is easier to break through, meanwhile, the sense of change caused by the stimulation source is shielded temporarily, attention of the children during training can be improved, and the conflict emotion is reduced.

The present application relates to the technical field of vibration system, especially to a CD drive planar tension self-excited oscillation control system and a control method thereof; by connecting the photothermal elastic element and the passive elastic element to tension the vibration mass point, and combining with the light source irradiation to form the light irradiation area, a planar tension self-excited oscillation control system with simple structure and without external periodic excitation is constructed, the vibration mass point can be driven to continuously and stably self-excited oscillate under constant light, the system realizes self-sufficient energy and cable-free operation, has the ability to resist electromagnetic interference, and is suitable for microgravity and weightless environment; the control method of the present application constructs the CD strain equation and the vibration mass point motion equation based on the measured deformation curve of the photothermal elastic element, solves the target control parameter set through dimensionless processing, realizes the accurate design and pre-control of the system oscillation amplitude, frequency and motion trajectory, and each parameter can be independently or cooperatively adjusted, which significantly improves the controllability and applicability of the system.

The invention discloses an outward-pulling handle system with a starry sky lamp effect and a lightening method, and the system comprises a control module which is configured to execute at least one of the following light control modes: a normally-on mode: lightening all light-emitting units, controlling all light-emitting units at the same brightness value, and keeping the brightness value all the time; in the breathing mode, all the light-emitting units are controlled to synchronously perform cyclic change of a first preset duration for increasing the brightness from the lowest value to the highest value and a second preset duration for decreasing the brightness from the highest value to the lowest value; and a ripple mode: the plurality of light-emitting units form at least one central area and one or more peripheral areas outside the central area, the central area and each peripheral area are sequentially lightened according to a preset sequence, and each area is extinguished after a third preset duration after being lightened and enters a cyclic change after a fourth preset duration. According to the invention, a rich, fine and artistic dynamic light effect is achieved, and the visual attraction, the science and technology sense and the personalized interaction experience of the vehicle are remarkably enhanced.

The utility model provides a photoelectric sensor and a light source constant light control circuit thereof, the photoelectric sensor is provided with a light source and a photoelectric detector, the circuit comprises a main control circuit used for outputting a control signal to control the light source constant current control circuit, and receiving a feedback signal of a light intensity feedback circuit to control the light source constant current control circuit. Adjusting the control signal to keep the light intensity of the light source unchanged; the light source constant current control circuit is used for performing constant current control on the light source; and the light intensity feedback circuit is used for processing the current signal converted by the photoelectric detector and feeding back the current signal to the main control circuit. According to the utility model, the light source light intensity change of the photoelectric sensor can be found in time, and the adjustment can be responded in time, so that the light source intensity of the photoelectric sensor remains unchanged, thereby ensuring the measurement precision of the photoelectric sensor.