Bizarre Patents
Mouse device with a built-in printer
A mouse device for use as an input device of a computer is provided that includes a housing in which recording paper is loadable, and a printer unit provided within the housing for printing on the recording paper print information received from the computer.
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| Number | Title | Issue Date |
| 4783159 | Operation microscope An operation microscope in which the optical axis of the illumination optical system is in alignment with the optical axis of the objective lens of the observation optical system and the illumination rays pass along the optical axis of the objective lens.... | 11/08/1988 |
| 4676612 | Eye examining apparatus An eye examining apparatus is disclosed which is capable of the accurate detection of any abnormality in the optical system of a patient's eye which might exist at any position of the eye, and also which is capable of providing easy measurement of the deg... | 06/30/1987 |
| 4609814 | Control for operation microscopes An operation microscope system comprising an operation microscope including an observation optical system adapted for observing a portion of a patient wherein an operation is to be made. A mark device is provided on one of the microscope and the patient's... | 09/02/1986 |
| 4469416 | Automatic focusing means for an ophthalmoscopic instrument An ophthalmoscopic instrument includes a main optical system, with a focusing optical device, for producing an image of the fundus of an eye on an imaging plane, on illuminating optical system for illuminating the fundus, and a target projecting optical s... | 09/04/1984 |
| 4468104 | Working distance detecting device for ophthalmic instruments A working distance detecting device for ophthalmic instruments has two annular slits in the illuminating system. One of the annular slits has a light-shading portion of a predetermined width. A light-receiving portion is provided around the object lens so... | 08/28/1984 |
| 4455758 | Bearing means for angle measuring instruments An angle measuring instrument such as a theodolite having a housing containing a viewing optical system. The housing has a pair of axially aligned horizontal shafts through which it is mounted on a support frame for a swingable movement in a vertical plan... | 06/26/1984 |
| 4453808 | Apparatus for detecting the position of a patient's eye in ophthalmologic instruments In an ophthalmoscopic instrument such as an eye fundus camera or an eye refractometer, a device is provided for detecting the position of a patient's eye. The device includes a target projecting system for projecting a light beam to the patient's eye, an ... | 06/12/1984 |
| 4436389 | Ophthalmic instrument having working distance detecting means An ophthalmic instrument such as an eye fundus camera including an illuminating system which projects an illuminating light through a ring-shaped aperture to a patient's eye. There is provided a working distance detecting device which includes a light rec... | 03/13/1984 |
| 4436390 | Ophthalmic instrument having a cross cylinder lens An ophthalmic instrument having a cylindrical test lens and a cross cylinder lens which are adapted to be placed in an examining optical path. The cross cylinder lens is mounted on a lens tube which is rotatably mounted on a swingable lever about a pivot ... | 03/13/1984 |
| 4435051 | Working distance detecting device for ophthalmic apparatus An eye fundus camera is disclosed having a working distance detecting device. The eye fundus camera includes an illuminating system having a ring-shaped aperture through which the illuminating light beam is projected to the eye to be examined through an o... | 03/06/1984 |
| 4410268 | Apparatus for automatically measuring the characteristics of an optical system An apparatus for measuring the optical characteristics of an optical system includes a light source, a collimator lens, a mask, a detector, and a circuit for measuring information received from the detector. The light source projects a beam of light throu... | 10/18/1983 |
| 4408847 | Refractory power measuring device A refractory power measuring device for measuring the refractory power of the human eye or a lens. The device includes a target projecting optical system having two optical elements which are movable along the optical axis of the system independently from... | 10/11/1983 |
| 4396260 | Slit lamp having replaceable objective lens unit for observation of cornea Slit lamp having a slit illumination system, a binocular microscopic system and a photographing system. The binocular microscopic system has an objective lens assembly which is mounted replaceably on the body. A replaceable lens unit is provided for obser... | 08/02/1983 |
| 4200376 | Fluorescent ophthalmoscopic photographing apparatus Fluorescent ophthalmoscopic photographing apparatus including an injector for a fluorescent agent and a photographing camera for taking a photograph of an eye fundus. A time counter is provided for indicating a count of time interval from the start of the... | 04/29/1980 |
| 4167302 | Surgical microscopes with L-shaped mounting brackets Surgical microscope in which the microscope body is mounted on a support member which is laterally and vertically swingable and slidable along its longitudinal axis. The body comprises an objective lens tube mounted on said support member and having a pai... | 09/11/1979 |
| 4162852 | Method and device for measuring diopters of astigmatic lenses Lens diopter measuring device includes a first and a second diopter scales which have the same but oppositely directed graduations. Correct identification of the diopters of an astigmatic lens can be obtained by bringing the second scale to zero reading a... | 07/31/1979 |
