摘要:
Rotary pumps wherein the conveyed fluid, e.g. foodstuffs, entering around the rotor seats, is prevented from staying there statically, by circulating part of the fluid from the high-pressure side of the pump chamber to the low-pressure side through appropriate holes or apertures disposed around the rotor seats, and by making use of the fluid pressure itself. Washing can be carried out around the seats by circulating water that is fed to the pump, instead of the fluid, after the use of the pump has been stopped. The pumps feature a fluid circulating passage between the high-pressure side and a space in a cap portion, for purposes of cleaning that space.
摘要:
A stereoscopic image observing apparatus includes a right-eye projector 1 and a left-eye projector 2 which illuminate projected light for right and left eyes with the parallax generated based on an image pick-up signal obtained from a stereoscopic endoscope 8, a Fresnel lens 17 which applies and reflects the lens operation with the positive polarity to the projected light of the illuminated images for the right and left eyes, and an optical shift element layer 16 having liquid crystal 20 and a double refraction plate 19 for changing and diffusing on time series the reflecting position of the reflected light of the images for the right and left eyes from the Fresnel lens 17.
摘要:
A stereo-observation system includes a stereo imaging unit which has at least two entrance pupils and an imaging means forming a first image for the left eye and a second image for the right eye which have parallax and a stereo display unit which has two image display means displaying two images formed by the stereo imaging unit. In this case, the stereo display unit is constructed so that an angle of vergence α2 is made by the line of sight of the left eye of the observer viewing the center of the first image displayed by the image display means with the line of sight of the right eye of the observer viewing the center of the second image displayed by the image display means, and the angle of vergence α2 satisfies the following condition: (α1−2 tan−1(d/2L))×(w2/w1)×0.83≦α2≦{2 sin−(G/2D)−(2 tan−1(d/2S)−α1)×(w2/w1)}×1.2 where α1 is the angle of vergence (the inward angle) of the stereo imaging unit, d is a distance between the centers of the two entrance pupils of the stereo imaging unit, L is a distance from a far point of the depth of field of the stereo imaging unit to the entrance pupils of the stereo imaging unit, S is a distance from a near point of the depth of field of the stereo imaging unit to the entrance pupils of the stereo imaging unit, w1 is the field angle of the stereo imaging unit, w2 is the field angle of the stereo display unit, G is an interpupillary distance of the observer, and D is a distance from the pupil position of the observer to the observation image.
摘要:
An observation device including an intermediate tube that houses two relay optical systems and an image rotator, each relay optical system having an exit axis that is substantially parallel to the exit axis of the other relay optical system, and an ocular tube that houses two image formation optical systems and two eyepiece optical systems. The intermediate optical tube has a connecting portion that connects to a connector at the top of a stereoscopic microscope body at one end and is rotatably connected to the ocular tube at the other end, the ocular tube is extendable from, and collapsible into, the intermediate tube over a movement range in the direction of the exit optical axes of the pair of relay optical systems, and exit pupils of the pair of relay optical systems are arranged near a middle position of the range of movement of the ocular tube.
摘要:
An observation apparatus is disclosed that includes two projection devices, a display panel, and a retaining and supporting member. The two projection devices are each provided with an aperture, and are positioned and oriented so that images are projected onto the display panel through the apertures. The display panel either includes a pupil-forming optical system that is formed of an image-forming element having positive optical power that is integral to the display panel or is sufficiently nearby it such that conjugate positions of the projection apertures are formed at pupil positions for observation. The retaining and supporting member is provided with a retaining mechanism that enables the display panel to be detachably attached to the supporting member.
摘要:
A three-dimensional observation apparatus is provided which includes an optical reflection member which reflects a light beam and converges the light beam after the reflection, and image projectors for right and left eyes which project a medical image for the right and left eyes on the optical reflection member and forms an exit pupil for the right and left eyes at a position apart from the optical reflection member by a predetermined distance. The apparatus also includes a holding member which keeps a positional relationship of the image projector for the right eye to the optical reflection member and a positional relationship of the image projector for the left eye to the optical reflection member.
摘要:
The invention relates to a projection viewing system of simplified construction and high illumination efficiency, which enables at least two of images varying with viewing directions to be simultaneously displayed in a viewable fashion. The system comprises display devices 1L and 1R for displaying images, projection optical systems 2L and 2R for magnifying and projecting images 3L and 3R displayed on the display devices 1L and 1R, a diffusing plate 5 located in the vicinity of images projected through the projection optical systems 2L and 2R and an eyepiece optical system 4 for projecting exit pupils of the projection optical systems 2L and 2R on the positions of the eyeballs of a viewer. The diffusing plate 5 has an angle of diffusion of up to 20° at full width half maximum.
摘要:
The present invention provides a master production scheduling system in which overstocked parts are disposed of with minimum loss. The master production scheduling system refers to data stored in a data storage apparatus 101 and performs the following processing: an MRP explosion apparatus 115 explodes a product listed in a production plan into gross requirements; a retired parts estimating section 116 specifies overstocked parts based on the explosion results; a producible product quantity calculating section 117 calculates a producible product quantity for a retired model which can be produced using the overstocked parts; an additional parts order estimating section 118 calculates the value of an additional parts order (which is an amount of money to be paid for parts to be additionally ordered) for each quantity of retired model products to be produced; and a retired parts disposal section 120 drafts a production plan for the retired model in which the value of the additional parts order is minimized based on the producible product quantity and the value of the additional parts order.
摘要:
In a wireless selective call receiver, a receiving section receives an interleaved data signal sequentially in units of bits. The interleaved data signal is generated by interleaving a data composed of a plurality of words. The receiving section deinterleaves the received data signal to produced a deinterleaved data signal corresponding to the plurality of words, and detects a message from the deinterleaved data signal. A control unit stops an operation of the receiving section not to perform when a number of words containing BCH error bits equal to or more than a first predetermined number exceeds a second predetermined number.
摘要:
The present invention discloses a device for automatically inspecting the acceptability of the inner diameter and bending of pipes of the type in which a cylindrical gage is inserted and forced to pass through the pipe to be inspected under the driving force of, for instance, compressed air. The pipe through which the gage passes from one end thereof to the other end is accepted, but the pipe in which the gage is stopped is rejected together with the gage. A pipe to be inspected is located by positioning first and/or second pipe positioning means into a predetermined pipe inspection position, and then firmly clamped by pipe clamping means. A cylindrical gage with a predetermined outer diameter and length is brought to the firing position by gage positioning means, inserted into one end of the pipe and forced to pass through the pipe under the compressed force admitted into the pipe behind the gage through gage firing means. The gage discharged out of the other end of the pipe is trapped by gage recovery means and discharged onto a conveyor system which returns the gage to the gage positioning means for the next inspection, and the inspected pipe is automatically released from the inspection position and discharged out of the pipe inspection device. Thus the full-automatic, safeguarded and quick pipe inspection may be ensured.