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| Number | Title | Issue Date |
| 5015081 | Binocular microscope A binocular microscope has an objective optical system for receiving a beam of rays from an object and emitting it as a parallel pencil of rays, a relay optical system for relaying the beam of rays coming from the objective optical system, and an ocular f... | 05/14/1991 |
| 4964708 | Microscope for medical surgery A binocular microscope having a range of variable magnifications extending from 4X to 20X that is suited to microsurgery and other applications. The microscope has a folded optical axis that places the eyepiece directly in line with the work area. The pro... | 10/23/1990 |
| 4935612 | Autofocus system and method of using the same A microscope with continuously or discontinuously variable objective magnification is provided with an autofocus system whose beam path passes through the objective and is directed out of the imaging beam path of the microscope between objective and eye p... | 06/19/1990 |
| 4842395 | Finder of variable magnification The disclosed variable magnification finder includes, from front to rear, a first lens unit of negative power, a second lens unit of positive power, a third lens unit of positive power, the first, second and third lens units constituting an objective lens... | 06/27/1989 |
| 4834516 | Noninverting photo-microscope with variable power lenses A microscope apparatus manufacturable at a low cost, and equipped with a photographing device assuring coincidence between an image to be observed and an image to be photographed, correctly photographing the up-down and right-left directions of a sample w... | 05/30/1989 |
| 4803352 | Autofocusing system for a microscope and method of using the same A microscope with continuously or discontinuously variable objective magnification is provided with an autofocus system, the beam path of which passes through the objective and is directed out of the imaging beam path of the microscope between objective a... | 02/07/1989 |
| 4802749 | Surgical microscope In order to allow the surgical operator and his assistant to make stereoscopic viewing of the region of surgery with a same magnification and in coaxial relationship, the surgical microscope comprises: a common objective lens; a pair of variable magnifica... | 02/07/1989 |
| 4769530 | Focusing degree-detecting device with a reduction optical system An automatic focusing microscope projects infrared rays onto a specimen along optical paths oblique to the optical axis of an optical system. For the focusing operation, a degree of focusing in the optical system is detected according to the deviation of ... | 09/06/1988 |
| 4756610 | Adjustable crank and linkage assembly for zoom lens optical system A zoom lens system for optical instruments incorporates a crank and linkage mechanism which is adjustable to alter the conjugate length between at least a pair of zoom lens assemblies of the zoom lens system.... | 07/12/1988 |
| 4723842 | Stereoscopic surgery microscope for eye surgery with selective image reversal The subassembly arranged between a zoom system and the ocular telescope of a stereoscopic surgery microscope for eye surgery comprises a prism system, arranged in a casing, for a complete image reversal with a beam displacement and a direction-invariable ... | 02/09/1988 |
| 4704007 | Variable magnification endoscope An endoscope whose magnification may be continuously varied from zero to a microscopic magnification of 40× or more while providing full correction for aberrations at widely different magnifications. The objective comprises a positive lens group in a mic... | 11/03/1987 |
| 4690519 | Zoom microscope having a crank and linkage mechanism The mechanism for moving the lens assemblies mounted to support rods in a variation power microscope includes a crank shaft having a pair of opposed arms. The lens assemblies are connected to the crank arms by linkages. The lens assemblies are biased to t... | 09/01/1987 |
| 4666262 | Optical systems for endoscopes This invention relates to an endoscope optical system for macroscopic overall view observation and for microscopic detail observation after contacting an object by an objective viewing aperture, the system comprising an objective lens group, an occular le... | 05/19/1987 |
| 4664486 | Variable magnification endoscope An endoscope whose magnification may be continuously varied from zero to a microscopic magnification of 40x or more while providing full correction for aberrations at widely different magnifications. The objective comprises a positive lens group in a micr... | 05/12/1987 |
| 4652094 | Binocular microscope including a detachable optical deflecting unit A binocular microscope arrangement that can be used for both straight line and angular viewing. The microscope arrangement includes three main units: an objective lens unit, a deflection prism unit, and an ocular tube unit. Mounting Structures are provide... | 03/24/1987 |
| 4650296 | Magnification changing mechanism of a microscope A magnification changing device in an imaging optical system comprises a magnification changing lens system including first and second lens groups disposed in series on the optic axis of the imaging optical system, a cylindrical cam member rotatable about... | 03/17/1987 |
| 4571038 | Binocular zoom microscope The invention resides in a binocular microscope which has a collimating lens 20 and a pair of monocular tubes 28 in optical alignment with it. Each tube has, as minimum components of its optical system, an objective 22 and an eyepiece 36. The optical axes... | 02/18/1986 |
| 4525042 | Optical system of variable focal and back-focal length In an optical system of variable focal and back-focal length for operation microscopes, an objective of fixed focal length is combined with an optical system of variable focal length consisting of two lens groups, the first lens group of which is displace... | 06/25/1985 |
| 4518223 | Automatic magnification changer for a surgical microscope A solenoid driven magnification changer shaft for a microscope with positive index stops. The solenoid shaft that both translates and rotates when the solenoid is activated. A coupler couples the solenoid shaft to the magnification changer shaft so as to ... | 05/21/1985 |
| 4511223 | Telecentric variable power illumination system A variable power telecentric illumination system comprises a first converging lens group, a second converging lens group, a third diverging lens group and a fourth converging lens group arranged in this ordinal sequence as viewed in the direction toward t... | 04/16/1985 |
| 4501477 | Lens adapter for endoscopes A variable focal length lens adapter is attached to an endoscope at its eyepiece. The lens adapter includes a lens system constituting a variable focal length lens system in combination with the eyepiece. The lens system of the lens adapter is composed of... | 02/26/1985 |
| 4443076 | Projecting apparatus A projecting apparatus wherein a work on a mount is illuminated by an illuminating device and an image of the shape of the work obtained through a light transmitted therethrough or reflected therefrom is formed on a screen by means of a magnifying-project... | 04/17/1984 |
| 4391496 | Adjustment device for a pancratic objective of a stereomicroscope The invention contemplates adjustment mechanism for a pancratic objective, wherein each of two differently displaceable lens holders are nevertheless correctly driven by a single manual driving rotation, there being a variable-length corrective connection... | 07/05/1983 |
| 4386828 | Telecentric illumination system An illumination system for telecentric illumination throughout a wide variation range of magnification while keeping a large distance to an object to be illuminated is disclosed. The telecentric illumination system comprises a first lens group which is co... | 06/07/1983 |
| 4277130 | Zoom stereomicroscope with taking lens barrel A zoom stereomicroscope with taking lens barrel comprises a binocular observation stereomicroscope, formed by a pair of observation optical subsystems, and an auxiliary optical subsystem which may be used for purpose of photographing or auxiliary observat... | 07/07/1981 |
| 4277133 | Microscope A microscope in which the lens assembly and viewing stage can be positioned at any of several predetermined angular orientations for ease of viewing, the lens assembly includes a zoom magnification capability, and two slides can be pivotably mounted on th... | 07/07/1981 |
| 4235509 | Electrically driven optical instrument with manual drive An electrically driven optical instrument such as stereo-microscope is provided with a transfer shaft rotatably carrying a drive transmitting, transfer gear. An axial displacement of the transfer gear occurs in response to an external operation to move th... | 11/25/1980 |
| 4232933 | Optical system of colposcope An optical system of colposcope comprises a pair of independent observation optical sub-systems each having a family of objective lenses including a magnification varying optical sub-system, the magnification varying sub-system in one observation sub-syst... | 11/11/1980 |
| 4157859 | Surgical microscope system A surgical microscope apparatus and method for using the same for use while suturing an incision in the cornea for reconfiguring the cornea to a spherical surface having a radius of curvature of a predetermined magnitude, the microscope system including m... | 06/12/1979 |
| 4119364 | Device for displaying magnification in the field of view of a microscope A magnification display device for displaying magnification on a part in the observation field of view or photographing field of view of a zoom type microscope. The device comprises a mirror frame for the microscope incorporating with a zoom lens, and a m... | 10/10/1978 |
| 4072395 | Microscope A microscope is disclosed as incorporating a light source which broadcasts light in succession through a holographic condenser lens, a transparent object support stage, an object to be magnified, a holographic objective lens, a holographic zoom lens assem... | 02/07/1978 |
| 4000935 | Drawing attachment having a focusing system, power changer system and a telescope for a microscope A drawing attachment having a focusing system, a power changer system and a telescope, when used in conjunction with an infinity-corrected microscope, permits superimposition of the object viewed through the microscope and a drawing surface for making a d... | 01/04/1977 |
