538results about How to "Change intensity" patented technology

A spinal support device for applying a directed and concentrated force on the sacrum to position the sacrum and pelvis to thereby establish a desired spinal posture when in a seated position. The device provides isolatable force on the sacrum from the sacral base line downwardly to a bottom seat surface and for a width across an individual's back approximately equal to twice the dimension of the posterior portion of the individual's sacrum.

The invention discloses a compression molding fireworks outer cylinder, a marble shell and a preparation method thereof, comprising the components of plant fiber, binder, filler, excipient and dryer. The fireworks outer cylinder and marble shell is made after the components are prepared and processed compression molding. The lead-through is just needed to be installed by the fireworks manufacturers, and the fireworks cylinder can be made by using the technical proposal. The process is simple, the procedures are few and the production efficiency is high. The utilization rate of the raw materials can be reached to 100 percent. The plastics can be totally banished and the effect of environmental protection is good. The products have standard specification and good pressure resistance. The distortion and bending phenomena can not be generated, and the display quality of the fireworks is greatly improved which ensures the safety. The shape, size and intensity of the fireworks cylinder and marble shell can be flexibly and conveniently changed as required. The preparation method also can be used for the production and development of the special shaped shell or package in the fireworks industry.

An apparatus for preparing a plastic eyeglass lens includes a coating unit and a lens curing unit. The apparatus is preferably configured to allow the operation of both the coating unit and the lens curing unit. The apparatus may also include a post-cure unit and a controller. The controller is configured to control the operation of the coating unit, the lens curing unit and the post-cure unit. A lens forming composition may include an aromatic containing polyether polyethylenic functional monomer, a photoinitiator, and a coinitiator. The lens forming composition may be cured by the application of activating light or activating light and heat.

The invention relates to optics comprising adjustable optical elements and, if desired, lenses of fixed focal lens. By use of an appropriate controller for the adjustable optical elements, characteristics of the optics can be advantageously varied. For this purpose, systems are provided which are suitable for use as surgical stereo-microscope, objective, ocular or zoom. A zoomable imaging optics comprises lenses and of variable optical power, which are oppositely controlled by means of a controller to change an imaging ratio, so that the optical power of the one lens is increased and the optical power of the other lens is decreased. Moreover, the imaging optics may comprise still further assemblies of fixed optical power.