41results about How to "Long throw distance" patented technology

A long throw Pop-Up Irrigation Nozzle assembly has no oscillating or rotating parts and includes a cylindrical body having a fluid inlet and a sidewall defining at least one fluidic circuit configured to generate a selected spray pattern when irrigation fluid flows through the body. In order to throw long distance, droplet velocity, droplet size and droplet initial aim angle determine the throw to provide a low precipitation rate (“PR”) for fluidic sprays. The nozzle assembly and method of the present invention achieve a PR of 1 in/hr or less and good spray distribution with a scheduling coefficient (“SC”) of about 1.5 without utilizing any moving components to provide a significantly more cost effective nozzle assembly, as compared to prior art rotator nozzles.

A liquid jet is modulated to selectively cause the jet to break off into drop pairs and third drops traveling along a path using a drop formation device associated with the jet. Each drop pair is separated on average by a drop pair period and includes a first and second drop in response to input image data. The third drops, separated on average by the same drop pair period, are larger than the first and second drops in response to input image data. A waveform provided by a charging device has a period that is equal to the drop pair period, includes first and second distinct voltage states, and is independent of input image data. The charging device, synchronized with the drop formation device, produces first and second charge states on the first and second drops, respectively, of the drop pairs and a third charge state on the third drops.

A group timing delay device shifts the timing of drop formation waveforms supplied to drop formation devices of one of first and second nozzle groups so that print drops from the nozzle groups are not aligned relative to each other along a nozzle array direction. A charging device includes a common charge electrode associated with liquid jets from the nozzle groups and a source of varying electrical potential between the charge electrode and liquid jets which provides a charging waveform that is independent of a print and non-print drop pattern. The charging device is synchronized with the drop formation devices and the group timing delay device to produce a print drop charge state on print drops of a drop pair, a first non-print drop charge state on non-print drops of the drop pair, and a second non-print drop charge state on third drops.

An optical lens for modulating light generated by a surface-emitting laser chip is disclosed. The optical lens includes a main body with a recess. A bottom surface of the recess is configured with a light-entering curved face, and an outer surface of the main body opposite to the bottom surface is configured with a light-existing curved face. Here, the recess is for accommodating the surface-emitting laser chip, and the surface-emitting laser chip is arranged a distance from the light-entering curved face. A light-emitting module adopting the aforementioned optical lens is also provided. The aforementioned optical lens would cause the incident light to first diverge and then converge at a predetermined angle, so that the output illuminating light is more uniform and the projecting distance is extended.

The invention discloses a projection type LED automobile high beam. The high beam is characterized in that: the high beam comprises four high-power LEDs, each of which is made of a single chip; the high beam is provided with four reflection planes, each LED corresponds to a different reflection plane, the direction of the central emergent light emitted by each LED is perpendicular to the corresponding reflection plane, the first reflection plane and the second reflection plane are symmetric based on the datum axis of the high beam, both the first reflection plane and the second reflection plane make the angle Delta of 75 to 86 degrees with the datum axis of the high beam, the third reflection plane and the fourth reflection plane are symmetric based on the datum axis of the high beam, and both the third reflection plane and the fourth reflection plane make the angle Beta of 77 to 87 degrees with the datum axis of the high beam. Since the light of the high beam is concentrated, the projection angle is small, and the distance is long. The high beam can replace conventional automobile high beams.

Drop formation devices are provided with drop formation waveforms to modulate liquid jets to cause portions of the liquid jets to form print drops having a jet breakoff length L_p in a print drop breakoff length range R_p and non-print drops having a jet breakoff length L_np in a non-print drop breakoff length range R_np. A timing delay device shifts the timing of the waveforms supplied to drop formation devices of first and second nozzle groups so that print drops formed from first and second nozzle groups are not aligned relative to each other. A charging device includes a charge electrode that is positioned relative to the breakoff length L_p and breakoff length L_np such that there is a difference in electric field strength at the two breakoff lengths to produce a print drop charge state on print drops and a non-print drop charge state on non-print drops.

The invention relates to a laser projected scale system which comprises a case, a projection source, a reflecting mirror, a scale and a movable element, wherein the movable element is arranged in the case and comprises a moving coil and a pointer arranged on the moving coil; the projection source is arranged at the upper back part of the case; the reflecting mirror is installed on the moving coil and is arranged at the upper part on the back side of the reflecting mirror; and the scale is arranged at the right front part of the case. The laser projected scale system also comprises a moving scale which is a blackboard or wall. The device can be connected with a multimeter used for measuring micro electromotive force. The reflecting mirror is driven to rotate by the rotation of the pointer and reflects laser to the blackboard or wall far away, the blackboard or wall is marked with scale labels used for measurement, or the laser can be directly read through the fixed scale arranged at the right front part of the case. The invention has long service life, low energy consumption, long projection distance, wide application range, low cost, simple structure, easy operation, small size, portability and easy maintenance and repair as well as popularization and application.

The invention relates to a small-angle white light source which comprises a laser white light source and a collimating lens arranged right above the light-emitting end of the laser white light source,wherein the laser white light source comprises a blue light laser transmitting device and a light conversion medium; the light conversion medium is arranged on the surface of the laser emitting end of the blue light laser transmitting device; the blue light laser transmitted by the blue light laser transmitting device pass through the light conversion medium to be activated and converted into white light; and the white light is gathered into small-angle white light by the collimating lens. The small-angle white light source overcomes the defects that the technology is outdated, the techniqueis complicated, the efficiency is low, the light source is disperse, intensity is weak, and the projection distance is short because the light-emitting component of the existing traditional light source adopts LEDs or the manner of RGE or color chips in laser lighting and has the advantages of being in simple in technique, high in light-emitting efficiency, small in light source emitting angle, centralized in light source, high in intensity and long in projection distance.

A group timing delay device is provided to shift the timing of drop formation waveforms supplied to drop formation devices of nozzles of one of first and second groups so that print drops formed from nozzles of the first and second groups are not aligned relative to each other along a nozzle array direction. A charging device includes a common charge electrode associated with liquid jets formed from the nozzles of the first and second group and a source of varying electrical potential between the charge electrode and liquid jets. The source of varying electrical potential provides a charging waveform that is independent of print and non-print drop patterns. The charging device is synchronized with the drop formation device and the group timing delay device to produce a print drop charge state on print drops and a non-print drop charge state on non-print drops.

A drowning person rescuing device for bridges comprises an omnibearing movable support and a fixed bolt, and a fixed wing is screwed with the tail thread of a light material shaft; a body box is respectively slidably connected with the front end and the back end of the light material shaft, and the upper part of the body box is in lock ring connection with a high-strength rescuing rope; the rear end of a spring and the body box are welded together, and the spring is wrapped with the rear part shaft of the light material shaft; the middle part of the light material shaft spring is in contact connection with the spring; a cylindrical structure groove is inlaid in the bottom of the middle of the light material shaft, and the light material shaft is a cylindrical structure; the high-strength rescuing rope is in lock ring connection with a buckle arranged at the top of the light material shaft; a foam ball is in threaded connection with the front end surface of the light material shaft, anda threaded hole is inlaid in the foam ball; the omnibearing movable support is in sliding connection with the body box, the top of the omnibearing movable support is a spherical structure, and the bottom of the omnibearing movable support is a round table-shaped structure; and the fixed bolt is in sliding connection with the body box, and the bolt is cylindrical. The device is easy to use.

Drop formation devices are provided with a sequence of drop formation waveforms to modulate the liquid jets to selectively cause portions of the liquid jets to break off into print drops having a print drop volume V_p and non-print drops having a non-print drop volume V_np. The print and non-print drop volumes are distinct from each other. A timing delay device shifts the timing of drop formation waveforms supplied to drop formation devices of first and second nozzle groups so that print drops from the first and second nozzle groups are not aligned relative to each other. A charging device includes a charge electrode that is positioned in the vicinity of break off of liquid jets to produce a print drop charge state on drops of volume V_p and to produce a non-print drop charge state on drops of volume V_np.

The invention discloses an andrias davidianus breeding bait casting device which comprises pulleys, a base, a buffer and an intelligent processor, wherein the base is arranged in a direction perpendicular to the pulleys; the base is of a trapezoidal structure; the top of the base is closely adjacent to the buffer; a storage battery is arranged on the buffer; the intelligent processor is arranged right above the storage battery; a tray is arranged above the intelligent processor; an angle adjuster is arranged above the tray; any angle of a feed holding cabin can be set by the angle adjuster; an electromagnetic sucker, an expansion magnetic piece and an elastic pad are joined and matched together to form an ejection device; information of the intelligent processor and a gravity sensor can be mutually fed back. The andrias davidianus breeding bait casting device has the beneficial effects that due to adoption of the intelligent processor, the intelligent effect of the andrias davidianus breeding bait casting device is improved, and in addition, the andrias davidianus breeding bait casting device has the advantages of being far in casting distance, easy to operate and small in size.

The invention provides a manufacturing method of a diffractive optical element. The method comprises the following steps: determining parameters of the diffractive optical element; designing the diffractive optical element; manufacturing a diffractive optical element mother set; and assembling to form the diffractive optical element. The method can be applied to the field of 3D structured light, and is long in projection distance and high in precision.

The invention discloses an air pressure ejector device, which comprises a launching barrel, wherein the lunching barrel is a cylindrical barrel of which the bottom is sealed and the top is provided with an opening; a compressed air bottle, a check valve, an air reservoir and a sandbag are arranged in the lunching barrel; the compressed air bottle is positioned on the bottom of the launching barrel; the upper part of the compressed air bottle is connected with the check valve; the upper part of the check valve is connected with the air reservoir; the compressed air bottle conveys high-pressure air into the air reservoir via the check valve; the upper part of the air reservoir is provided with a solenoid valve; the conveying of the air in the air reservoir to the outside is controlled by the solenoid valve. According to the air pressure ejector device, a push shot device is additionally arranged between the sandbag and the launching barrel, direct friction between the sandbag and the lunching barrel is effectively avoided, and the projection distance of the sandbag is further. The launching barrel and the push shot device are tightly combined to avoid the phenomenon that a great quantity of compression air is wasted since more gaps exist between the sandbag and the lunching barrel in the prior art, and cost is effectively lowered. The valve of the air reservoir adopts the solenoid valve which replaces an original hand valve, and high-pressure gas in the air reservoir can be quickly released since the solenoid valve can be more quickly opened than the hand valve so as to greatly improve launching efficiency and the use ratio of the compressed air.

The invention discloses a glare-proof light emitting device. The glare-proof light emitting device comprises a light source, a reflective washer, a polarizing lens and a mirror reflection assembly which are connected in sequence. The reflective washer is arranged at the exterior of a light emitting element of the light source in a sleeving mode. The polarizing lens is arranged on the light outletside of the light source. The mirror reflection assembly is arranged on the light outlet surface side of the polarizing lens. The mirror reflection assembly is arranged on one side surface of the light source. Most of light rays emitted by the light source enter the polarizing lens, large-angle light rays are reflected by the reflective washer and then enter the polarizing lens, the light rays arecollected by the polarizing lens, and angles of the refracted light rays are distributed; and after the light rays emitted by the polarizing lens are reflected by the inner surface of the mirror reflection assembly, the angle direction of the light rays is the same with the angle direction of the polarizing lens, so that the large-angle light rays are controlled and utilized, and the situation ofglaring is reduced.

The invention discloses a direct type optical projection system comprising a light source module configured to emit a collimated beam; a fly-eye lens configured to allow the collimated beam to enter from one surface of the fly-eye lens and exit from the second surface of the fly-eye lens, and to allow the collimated beam to be converged on the focal plane of the fly-eye lens to form lattice lighton the focal plane; and a telecentric projection lens group for allowing light emitted from the fly-eye lens to penetrate through the telecentric projection lens group, and allowing the light emittedfrom the telecentric projection lens group to form speckles or area arrays on an imaging plane. In addition, the invention also discloses an optical protection method comprising the following steps ofemitting the collimated beam; allowing the collimated beam to enter from the first surface of the fly-eye lens and exit from the second surface of the fly-eye lens, and to be converted on the focal plane of the fly-eye lens to form the lattice light on the focal plane; and allowing the light emitted from the fly-eye lens to enter and penetrate through the telecentric projection lens group, thus allowing the light emitted from the telecentric projection lens group to form the speckles or area arrays on the imaging plane.