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7919774 |
Nonvolatile memory element, nonvolatile memory apparatus, and method of manufacture thereof
A lower electrode layer 2, an upper electrode layer 4 formed above the lower electrode layer 2, and a metal oxide thin film layer 3 formed between the lower electrode layer 2 and the upper...
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7733480 |
Device to aid the positioning of a pilot in an aircraft
A visual aid is used by a pilot in an aircraft to position himself in the cockpit by an axial movement, called movement along the X axis, in an aircraft reference coordinate system, and by a...
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7692178 |
Nonvolatile memory element, nonvolatile memory apparatus, and method of manufacture thereof
A lower electrode layer 2, an upper electrode layer 4 formed above the lower electrode layer 2, and a metal oxide thin film layer 3 formed between the lower electrode layer 2 and the upper...
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7487596 |
Laser line projected on an edge of a surface
A laser reference device includes at least one planar or flat surface and an internal laser light source for generating a laser light beam. A lens inside the device may convert the laser light into...
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6724471 |
Arrangement for the vertical orientation of a geodetic instrument
An arrangement for the vertical orientation of a geodetic instrument over a ground point, comprises an optical observation device for visual sighting of the ground point with a target beam, a laser...
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6625895 |
Servo-controlled automatic level and plumb tool
A method and apparatus for leveling at least one output light beam in a construction tool. One embodiment of the apparatus includes a laser optical assembly for producing output light beams that...
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6292258 |
Laser receiver with out-of-plumb indication and compensation
A laser receiver is provided that is capable of providing an accurate indication of laser receiver tilt and correcting a generated elevation signal based upon the indicated laser receiver tilt. In...
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6177987 |
Laser level
A laser level includes a transparent container, a buoy with a built-in laser component, and a support frame. The center of gravity of the buoy is always at the center of the buoy. One end of the...
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6104480 |
Angle measuring device
An angle measuring device comprising two legs, a hinge supporting the legs turnably relative to one another about a common axis, at least one rotor, drive unit driving the rotor rotatably about a...
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6073354 |
Plumb laser beam generator with floating telescope
An instrument for use in alignment, plumb and leveling functions includes a laser diode projecting a beam through a liquid contained in a vessel. Floating in the liquid is a compensator float which...
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6057916 |
Automatic inclination corrector and inclination sensor using an automatic inclination corrector
An automatic inclination corrector and an inclination sensor using the automatic inclination corrector free from the temperature, for optical instruments. A transparent container 3 seals silicon...
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5847820 |
Laser apparatus for sensing rotational orientation and levelness
A laser apparatus is provided for sensing rotational orientation or the degree of levelness. The apparatus includes a photosensitive cell and a diode laser directing a laser beam toward the...
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5684579 |
Automatic tilt angle compensator
The automatic tilt angle compensator of the present invention includes a liquid sealing container with a transparent liquid sealed therein to form a free liquid surface, a light projecting system...
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5680208 |
Gravity oriented laser scanner
A laser scanner 50 includes a laser 76 affixed to a pendulum 66 with a damper 80 for damping the movement of the pendulum 66. The laser scanner 50 is controllable through a remote control 62 for...
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5513001 |
Tilt angle automatic compensator in all directions
A tilt angle automatic compensator used for a device requiring verticality or horizontality is disclosed. The automatic compensator comprises a container 4 where a transparent liquid to form free...
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5392112 |
Inclination angle metering apparatus
An inclination angle metering apparatus is arranged such that a beam from a light source is split into two beams by a half-mirror provided in a light path between the light source and the surface...
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5126561 |
Angle displacement detector for optical image stabilization device
In an angle displacement detector for an optical image stabilization device including a tubular casing which has a chamber containing a sealed-in liquid, a floating body which is disposed within...
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5112126 |
Apparatuses and methods for making geophysical measurements useful in determining the deflection of the vertical
A non-magnetic apparatus is disclosed for finding the deflection of the vertical. That apparatus has a device for finding an instrument spatial angle between a reference direction and an instrument...
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4988193 |
Method and apparatus for measuring incident light angle relative to level
Apparatus operable in accordance with the method of the present invention for measuring the angle of incidence of a light beam or plane relative to level comprises a photodetector array for sensing...
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4869590 |
Geodetic instrument
The invention relates to a geodetic instrument with a telescope, an objective with a reticle in the focal plane, a clinometer and optoelectronic elements with the objective of avoiding faulty...
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4811062 |
Method for aligning first and second objects relative to each other and apparatus for practicing this method
In a method for aligning first and second objects relative to each other, according to this invention, the first and second objects are arranged opposite to each other, and are aligned in a...
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4681438 |
Automatic compensator for compensating collimation error due to two-directional inclination in surveying instruments
An optical plummet mechanism for compensating an error due to an inclination of a surveying instrument comprises a first pendulum suspended in the instrument body interior, a second pendulum...
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4629321 |
Grade setting and calibration arrangement for laser beam projection device
An arrangement for use in a laser beam projection device for controlling the orientation of a support frame upon which a laser beam source is mounted includes a base frame, a support frame, and a...
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4291978 |
Apparatus for automatically determining the position at which a beam of light impinges on a target
A rotating target contains an appropriately shaped section of photoelectric material which detects the position of a beam of light which is incident on the target. The position of the beam is...
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4172662 |
Eyepiece for measurement of lengths and angles by a microscope
An eyepiece for use on a microscope when lengths and angles are to be measured. Two glass plates extending perpendicular to the optical axis of the eyepiece are spaced axially from each other to...
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4171907 |
Electro-optic distance measuring device
A device for measuring distances to a target includes electronic circuits for generating a light which is amplitude modulated by three selectable frequencies. Also included are optics for focusing...
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4136962 |
Apparatus for orienting and maintaining the orientation of construction equipment
An apparatus for orienting and maintaining the orientation of laser and similar construction equipment in a predetermined orientation with respect to a horizontal plane comprises superimposed...
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4135823 |
Optical assembly for generating light beams accurately at right-angles to each other
An optical assembly is provided which comprises a light source, preferably a laser, and a particularly compensated prism unit, the laser and the prism unit being mounted on a common holder or base....
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4119382 |
Self-leveling construction alignment laser
The specification discloses an improved system for projecting and utilizing a light beam as a reference line for construction purposes. The system includes a light beam projection device mounted in...
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4040752 |
Laser unit with a laser beam automatically aligned to the vertical direction
Laser unit for directing a laser beam in a strictly vertical direction, comprising a laser proper having a substantially vertical axis, an afocal system, an optical device for automatically...
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4021662 |
Laser target simulator
The laser target simulator of the invention comprises two point sources of light energy (LEDs) aimed at a section of concave spherical mirror which collimates the light energy and projects it...
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3915550 |
Stabilized binocular
The optical stabilization of the paired ocular paths of a binocular against accidental angular motion is disclosed. Each ocular path of the disclosed binocular includes an objective, an eye piece,...
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3817625 |
PHOTO ELECTRICAL SENSOR
A sensor providing an output as a function of the degree of deviation of a condition from a predetermined initial condition. The sensor consists of a housing for a pair of communicating columns of...
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3764220 |
ALIGNMENT APPARATUS USING A LASER HAVING A GRAVITATIONALLY SENSITIVE CAVITY REFLECTOR
A device for determining a true gravitational vertical including a vertically disposed laser having a gravitationally sensitive lower regeneration reflector which enables an output beam to be...
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3711178 |
MIRROR STABILIZER HAVING SPACE REFERENCED MOTION
A mirror is neutrally supported in and biased in alignment with a window in a fluid filled chamber. The fluid, acting on both the sidewalls of the chamber and the surfaces of the mirror, causes the...
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3694090 |
INSTRUMENT FOR OBSERVING COLORED BUBBLE IMAGE
A coincidence type bubble image observation instrument including a coincidence prism, a bubble tube and a reflecting plate for confirming the coincidence of the bubble image. A color filter of a...
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3677618 |
BINOCULARS HAVING STABILIZING REFLECTORS
An optical instrument is disclosed having a single light input, paired variable ocular outputs and a folded and split light path therebetween. Provision is made in the folding of the light path for...
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3591260 |
CONSTANT TIME RESPONSE SCANNER
The invention relates to an optical scanning system with a rotating disc having slits fabricated so that the signal produced during scanning has a constant time response. More particularly, the...
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RE11475 |
Title is not available
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3324557 |
Optical plumbing device
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3001290 |
Gyroscopic compass
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2968228 |
Zenith and level recording camera and level
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2941082 |
Photoelectric automatic sextant
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2837956 |
Theodolite having scale reading means
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