Bizarre Patents
Mountable Printable Placard With Headband
A resilient headband in a shape for being mounted on the head of the user. The headband is equipped with a longitudinal slotted member for holding a placard.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 5165408 | Gas jet shooting device for use with a non-contact tonometer A gas jet shooting device for use with a non-contact tonometer, having a hollow head (19) with a nozzle (27) secured thereto, a cylinder (10) which communicates with the head, and a piston (11) reciprocatably mounted in the cylinder and defining a compres... | 11/24/1992 |
| 5092334 | Noncontact type tonometer A noncontact type tonometer projects a fluid toward an eye-to-be-tested and obtains a measured value of eye pressure from a relation between transfigurations of the eye due to the fluid projection and the pressure projecting of the fluid. A detecting circ... | 03/03/1992 |
| 4984890 | Method and an apparatus for aligning first and second objects with each other A distance between a mask and a wafer is set such that exposure light beams emerged from the mask are converged by the projection lens to be focused on the wafer. Two light beams with same wavelength of the alignment light beam emerge from a first point (... | 01/15/1991 |
| 4941744 | Integrated-photocircuit interferometer An integrated-photocircuit interferometer (20) comprises a substrate (21) in which coherent light for measurement emitted from a light source (23) is directed through an exit waveguide (22) toward a corner cube prism (34) which can be movable with an obje... | 07/17/1990 |
| 4934812 | Light detector A light detector is disclosed which comprises a light-receiving section adapted to receive a measuring light beam at a front face thereof and to photoelectrically convert the light beam thus received and a display section adapted to display a measurement ... | 06/19/1990 |
| 4932774 | Illuminating system of ophthalmological instrument An illuminating system of an ophthalmological instrument has a coaxial illuminating system for effecting a coaxial illumination by projecting an observation-use illuminating light toward an eye to be tested from a direction generally parallel with an opti... | 06/12/1990 |
| 4916297 | Code reader A code reader comprising a scanner portion including an illuminating light source for illuminating a code in which all data are separated into at least two parts. A first partial code pattern and a second partial code pattern and a plurality of discrimina... | 04/10/1990 |
| 4872460 | Noncontact type tonometer A noncontact type tonometer includes a fluid discharging device for discharging a fluid towards the cornea of an eye to be tested; an alignment detecting device for detecting an alignment between the axis of a fluid discharge of the fluid discharging devi... | 10/10/1989 |
| 4859051 | Eye testing apparatus An eye testing apparatus, in which a cornea reflecting image and a retina reflecting image formed by projecting each target mark image onto a cornea and a retina of an eye to be tested are projected to a slight receiving portion through a measuring optica... | 08/22/1989 |
| 4858157 | Apparatus and method for determining the coordinates of a three-dimensional object A coordinates measuring apparatus comprising a detecting unit constituted by an optical system for obtaining an image of an object and a detecting system having a plurality of arrayed detecting elements disposed in such a manner that respective detecting ... | 08/15/1989 |
| 4855875 | Light source device for medical apparatus A light source device for use in a medical apparatus has a turnable or linearly movable member or flange provided in a housing, and an actuator removably attached to the movable flange and carrying two light sources thereon. The actuator has two connector... | 08/08/1989 |
| 4854691 | Laser beam scanning type eye fundus camera A laser beam scanning type eye fundus camera has a laser beam generator for generating a laser beam; an illuminating system for illuminating the fundus of an eye to be tested by scanning the laser beam generated by the laser beam generator on the eye fund... | 08/08/1989 |
| 4848907 | Method of and apparatus for analyzing interference fringes A method of analyzing interference fringes for use in a holographic interferometry process for measuring, by using a computer generated hologram, the shape of an object to be examined. The method comprises: a first step of obtaining a wave surface (xl, yl, zl)... | 07/18/1989 |
| 4848895 | Automatic eye refractive power measuring apparatus There is disclosed an automatic eye refractive power measuring apparatus for automatically measuring refractive power of an eye under test by means of objective measurement. It comprises a projection system for projecting a measuring target image to a ret... | 07/18/1989 |
| 4838680 | Optical system for retinal camera An optical system for a retinal camera comprises objective lens adapted to be located toward a patient's eye. The retina of the patient's eye is illuminated and photographed through the objective lens, which has a first biconvex type lens means and a seco... | 06/13/1989 |
| 4834530 | Shape measuring apparatus A shape measuring apparatus is disclosed. It comprises a pattern portion having a pattern in which pattern elements are arranged in the pitch width direction according to a predetermined rule so that a plurality of N codes can be distinguished with respec... | 05/30/1989 |
| 4834527 | Working distance alignment optical system for ophthalmological instrument A working distance alignment optical system for use in an ophthalmological instrument includes a target projecting optical system for projecting a target to a cornea of an eye to be tested, and a target image observing optical system for observing an imag... | 05/30/1989 |
| 4828385 | Autolensmeter An autolensmeter for inspecting refracting power of optical systems is herein disclosed, which comprises a collimater lens for projecting light from a light source onto an optical system to be examined as a parallel luminous flux, a mask means having a ma... | 05/09/1989 |
| 4820264 | Infusion instrument An infusion instrument comprises an infusion device for supplying intracular irrigating through an input end thereof, an infusion passage thereof and an insertion end thereof into an eyeball, an illumination unit including a light source for illuminating ... | 04/11/1989 |
| 4821273 | Wavelength/output power stabilizing apparatus of semiconductor laser An apparatus for stabilizing the wavelength/output power of a semiconductor laser is disclosed. It includes an injection current supplying source for supplying an injection current to a single-mode semiconductor laser; an output power variation detecting ... | 04/11/1989 |
| 4818068 | Slit apparatus A slit apparatus has a rotatable base plate and a rotatable cam driving plate which are rotated about the same axis of rotation, but independently. The base plate is provided with slit blades for forming a slit therebetween. The slit blades are rotated to... | 04/04/1989 |
| 4817620 | Noncontact type tonometer A non-contact type tonometer is disclosed. It includes a fluid discharging device for discharging a fluid from a nozzle towards an eye to be tested and transfiguring the eye, an eye pressure measuring device for measuring the eye pressure of the eye based... | 04/04/1989 |
| 4810085 | Corneal configuration measuring apparatus A corneal configuration measuring apparatus is disclosed. It comprises target projecting means for projecting target beams from a plurality of targets towards a cornea of an eye to be tested, light receiving means, measuring optical system for projecting ... | 03/07/1989 |
| 4810084 | Retinal camera A retinal camera of the present invention has an illumination optical system for projecting an illumination light to a retina of an eye to be tested and a photographing optical system for photographing a retinal image of the eye to be tested. The illumina... | 03/07/1989 |
| 4804262 | Automatic perimeter An automatic perimeter comprising stimulus presentation unit for presenting stimuli to examine a patient's eyesight, an examination program memory for memorizing a plurality of examination programs which present stimuli under different presentation condit... | 02/14/1989 |
| 4803645 | Method and apparatus for measuring coordinates A coordinates measuring method in which the image information of the same point are derived as first, second and third information when viewed from at least three different directions, a first corresponding point is determined by deriving the correlation ... | 02/07/1989 |
| 4799489 | Tonometer A tonometer comprising an eye pressure measuring device including a fluid discharge device for discharging a fluid toward an eye to be tested, a pulse wave phase detecting device for detecting a phase cycle of pulse wave due to pulse fluctuation of the ey... | 01/24/1989 |
| 4796989 | Opthalmological measuring apparatus An ophthalmological measuring apparatus is disclosed. It comprises a projecting systems for projecting a target image to the cornea and retina of an eye to be tested, respectively, a measuring optical system for being introduced a corneal reflecting beam ... | 01/10/1989 |
| 4793700 | Gaze-fixing device for surgical microscope A gaze-fixing device for a surgical microscope which is capable of providing a marking without an error at the time of a radial keratotomy operation. The device comprises a gaze-fixing target which can be disposed on the observation optical axis of a micr... | 12/27/1988 |
| 4781457 | Laser surveying equipment A laser surveying equipment includes a laser beam luminous section, a suspending reflection member suspended in such a manner as to reflect laser beam radiated from the laser beam luminous section upward and always to direct the optical axis of such refle... | 11/01/1988 |
| 4773749 | Ophthalmologic photographing apparatus An ophthalmologic photographing apparatus is disclosed. It comprises an observation light source for illuminating an eye to be tested; an observation optical system for forming an observation image of the eye to be tested and a corresponding image optical... | 09/27/1988 |
| 4770181 | Gas stream blower for non-contact type tonometer A gas stream blower for non-contact type tonometer comprises a cylinder, a piston arranged in the cylinder to divide the interior thereof into an air open chamber and a compression chamber, a nozzle communicated with the compression chamber such that air ... | 09/13/1988 |
| 4761070 | Eye refractometer An eye refractometer is disclosed. It comprises a projection optical system including a light source portion and an objective lens disposed opposite to an eye under test, and a ring-shaped diaphragm or perforated mirror for forming a ring-shaped image pat... | 08/02/1988 |
| 4758089 | Holographic interferometer A holographic interferometer comprising a source of laser beams, a condenser lens for converging a laser beam supplied from said laser-beam source, a pinhole which allows the passage of said converged laser beam, a collimator lens having a focal point whi... | 07/19/1988 |
| 4756613 | Eye fundus camera having viewing targets An eye fundus camera for taking photographs of a patient's eye fundus. The camera includes a pair of viewing targets located at the opposite sides of the optical axis. A switch is provided for alternately energizing the targets so that an appropriate one ... | 07/12/1988 |
| 4753498 | Optical reader The present invention relates to an optical reader for scanning a surface to be scanned by using information beam ray such as laser beam ray and optically reading a recorded information such as bar code recorded in the surface to be scanned. The optical r... | 06/28/1988 |
| 4740071 | Subjective ophthalmic instrument A subjective ophthalmic instrument has optotypes which are observed by the patient through a correcting lens system of adjustable refractive power. The subjective ophthalmic instrument further has a optotype examination system which includes an imaging op... | 04/26/1988 |
| 4737029 | Photometer A photometer is providing including light detecting means for detecting incident light and generating electric signals in response thereto as a measure of the incident light thereon, and optical means for guiding light to the light detecting means from a ... | 04/12/1988 |
| 4712895 | Ocular position measuring apparatus An ocular position measuring apparatus comprising a pair of fixation marks capable of emitting visible flickering beams for being watched by patient, a first pair of half mirrors positioned between the patient's eyes and the marks and an observing system ... | 12/15/1987 |
| 4712894 | Ophthalmoscopic instrument having working position detecting means Ophthalmoscopic instrument having working position detector. An object lens has an optical axis and is adapted to be positioned to confront a patient's eye at a working distance. The patient's cornea has a center of curvature. An observing optical system ... | 12/15/1987 |
