Carl-Zeiss-Stiftung

Raytheon Anschutz G.m.b.h.

Raytheon Anschuetz Gmbh

Tricumed Gmbh

Ernemann Cinetec Gmbh

Hans Baumann

Manfred Wieland

Jorg-Roger Peters

Wolfgang Graczyk

Karl-Heinz Otto

Jurgen Perkams

Uwe Hoff

Roger Glag

In a cinematic film projector a light source projects light through a single, non-centric light transparent transmission window formed in a rotary shutter, and through an image window and an image of a film which passes step by step past the image window for projection by a projector lens onto a cinema screen. In order to obtain a higher image frequency, the rotary shutter is made of light transparent material that is coated so that light passes through only its single light transmission window. Thereby the rotary speed of the rotary shutter can be significantly increased.

Cinematic film projector

The invention refers to a method of shortening the closure time of shutters in cinema projectors of the type in which film is intermittently advanced one frame at a time into registry with an image window in the projector, and wherein each time the film is advanced a shutter in the projector closes the image window during the time that the film is being advanced. According to the invention, an optical compensation of the film motion is effected by determining the rate at which each image of the film begins and ends, respectively, its advance into registry with the image window of the projector, generating a control signal proportionate to the rate, and positioning between the image window and the associated projection screen a movable plane-parallel plate which is adjsuted by the control signal to shorten the closure time of the image window during each film advance, thereby to increase the luminous efficiency factor of the projector.

Method for shortening the closure time and apparatus for executing same

An improved implantable infusion pump comprises a propellant chamber, a medicament chamber, and a throttle section. Enclosed within the throttle section is a medicament delivery system comprising a chip having a fluid path etched in an upper surface, inlet and outlet depressions formed in the chip lower and upper surfaces respectively, and a channel formed through the chip connecting the inlet with the fluid path. A planar cover, preferably transparent, covers the chip upper surface. A pair of wafers surround the chip within the throttle section and pair of silicon coatings are positioned between the chip and the pair of wafers. Various bores, apertures, and recesses are formed in the wafers, the cover, and the coatings, for permitting the medicament fluid to pass through the throttle section. An alternate embodiment employs a plurality of fluid paths and a plurality of outlets permitting different throttle resistance.

Implantable infusion pump

The invention concerns the elimination of the image steadiness error in the projection of films, which consist of individual images. For this purpose, the image steadiness error is detected by a sensor and is compensated for by a device for step size compensation. An apparatus for the measurement of the image position in the projection films which consist of individual images has a sensor for the measurement of the image steadiness error by making use of the perforation. In a device for the correction of an image steadiness error of films which consist of individual images, an optical compensator is arranged before the films as an optical storage medium and/or before the optical photography medium.

Method, apparatus and device for the reduction of the image steadiness

An image stabilizing device for optical equipment has at least one force exerting drive element for the compensation of vibrations acting on an optical arrangement in the optical equipment from its surroundings in at least one direction perpendicular to the optical axis. The force exerting drive elements is a linear motor. The image stabilizing device is installed in or on the optical equipment.

Image stabilizing device

An optical sound head (L), comprising a red laser diode (11) and a inspection window (90), allowing easy functional inspection, but also simple adjustment during manufacture. The laser diode (11) and all optical (10) and electronic (20) assemblies to be adjusted to a specimen, are accommodated in a replaceable assembly (1), for easy and repeatable (A) replacement. A minimum signal-to-noise ratio for analogue sound scanning is achieved by an additional aperture (15), reducing the light intensity applied to the center of an aperture slot (8). Both apertures (8, 15) are preferably designed as unsupported, laser-cut metal sheets.

Optical sound head combined with a sound film projector

A microscope has the optically imaging portion of its optical arrangement separated from the object to be observed. The microscope has at least one force exerting drive element for the compensation of vibrations acting on the optical arrangement from its surroundings in at least one direction perpendicular to the optical axis. The drive element is installed in or on the microscope.

Growing community of inventors

Raisdorf, Germany

Hans Baumann