Bizarre Patents
Mouthguard made at least partially from an edible candy
A mouthguard includes a U-shaped upper bite plate which removably fits over upper teeth of a person, with the entire upper bite plate being made from a soft, deformable and edible gummi candy.
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| Number | Title | Issue Date |
| 5717521 | Super wide-angle variable magnification view finder A super wide-angle variable magnification viewfinder includes an objective lens group of a positive refractive power. The objective lens group further includes a fixed first lens unit of a negative refractive power, a movable second lens unit of a negativ... | 02/10/1998 |
| 5701196 | Stereomicroscope A stereomicroscope comprising an objective lens system and eyepiece lens systems, the objective lens system comprising at least two lens units, permitting a working distance thereof by varying at least one airspace and having a concave surface at a locati... | 12/23/1997 |
| 5699197 | Microscope with a condenser lens system having a tapered portion A condenser lens system collects light from a light source to illuminate a sample, which comprises in the named order from the light source side a front group of positive refracting power having at least one lens and a rear group of positive refracting po... | 12/16/1997 |
| 5689365 | Stereoscopic-vision endoscope A stereoscopic-vision endoscope having an objective optical system consisting of a front optical system having a single optical axis including a field conversion optical system, and a rear optical system including optical systems that have a plurality of ... | 11/18/1997 |
| 5659425 | Immersion microscope objective The invention provides an immersion microscope objective which has a magnification of about 100× and a high numerical aperture of the order of 1.65, and is particularly excellent in axial optical properties. The first lens unit G1 consists of ... | 08/19/1997 |
| 5636058 | Microscope objective lens and microscope using the same This invention has as its object to eliminate flare light as a cause of low contrast. A microscope objective lens has, in the following order from the object side, a front group having positive refracting power to convert a beam from an object into a conv... | 06/03/1997 |
| 5532878 | Objective lens system for microscope An objective lens system for a microscope comprises, sequentially from an object side, a first lens group having positive refracting power, a second lens group shiftable in an optical-axis direction and a third lens group. The first lens group has a cemen... | 07/02/1996 |
| 5519532 | Disposable endoscope An endoscope includes a disposable probe and a non-disposable focusing ocular. The probe includes a transfer module assembly including one or more relay modules, and an objective element including a distal glass window, a molded plastic prism and three mo... | 05/21/1996 |
| 5517360 | Immersion microscope objective An immersion microscope objective which has a magnification of about 60, an NA of 1.4, and a reduced number of constituent lens elements and yet which is satisfactorily corrected for spherical and axial chromatic aberrations and is also superior in the fl... | 05/14/1996 |
| 5502596 | Immersion microscope objective An apochromat-class immersion microscope objective having a magnification of about 40, a NA of about 1.0, and a satisfactorily flattened image field. The microscope objective includes a first lens unit G1 of positive refractive power which has a cemented ... | 03/26/1996 |
| 5500770 | Macrolens system for emission microscopy A multiple lens element macrolens system operative as a single lens has a high light transmission value and a wide field of view of an object to be viewed. The macrolens system provides a long object working distance and an extended back focal distance to... | 03/19/1996 |
| 5499140 | Wide angle binocular system with variable power capability Binoculars designed to provide a large aided static field of view are provided. The binoculars are characterized by S/D ratios of above 2.8, where S is the binoculars' aided static field of view calculated by multiplying the binoculars' magnifying power b... | 03/12/1996 |
| 5469299 | Objective lens system A high resolution objective lens system for use in the ultraviolet region around 250 nm comprising in order from the object side: a first lens unit comprising a meniscus lens component having an object side concave surface having high curvature and a posi... | 11/21/1995 |
| 5467225 | Objective lens for an optical disk drive An optical lens for an optical disk drive suppresses a chromatic aberration to a sufficiently small level and attain a numerical aperture of as large as 0.55. It comprises a biconvex positive lens and a meniscus negative lens arranged in this order as vie... | 11/14/1995 |
| 5416638 | Disposable endoscope An endoscope includes a disposable probe and a non-disposable focusing ocular. The probe includes a transfer module assembly including one or more relay modules, and an objective element including a distal glass window, a molded plastic prism and three mo... | 05/16/1995 |
| 5394267 | Stereomicroscope A stereomicroscope comprising an objective lens, an afocal vari-focal optical system disposed coaxially with the objective lens, a pair of right and left imaging optical systems for imaging parallel rays emerging from the afocal vari-focal optical system,... | 02/28/1995 |
| 5394271 | Optical system for microscopes An optical system for microscopes includes an objective lens for collimating beams of light emanating from an object and an imaging lens for forming parallel beams emerging from the objective lens into an image of the object at a predetermined position, a... | 02/28/1995 |
| 5343018 | Microscope lens and stage heater with flexible objective lens casing heater sleeve A system for maintaining desired temperature control of a specimen observed under a microscope includes an objective lens heater comprising a heating element placed within a heat sleeve, which surrounds the objective lens casing. When an electric current ... | 08/30/1994 |
| 5309277 | High intensity illuminator The high intensity illuminator of the invention includes a mounting fixture, a receiving surface spaced from the mounting fixture, and a plurality of semiconductor illumination sources which are implemented, most preferably, by light emitting diodes or la... | 05/03/1994 |
| 5270860 | Objective for microscopes The invention relates to an objective-with-a-corrector-ring for microscopes that is of about 40 magnifications and has an NA of 0.93 with well-corrected aberrations over an ultra-wide field range, and is less likely to degrade in performance due to a thic... | 12/14/1993 |
| 5235465 | Objective lens system for use within microscope An objective lens system for use within a microscope includes a first to an eleventh lens which are disposed in that order from an object side to an image side with predetermined air spacings therebetween. The first lens in the form of a meniscus is made ... | 08/10/1993 |
| 5216545 | Objective lens system for microscopes An abjective lens system for microscopes consisting of a lens component having a convex surface on the image side and arranged on the extremely object side, and at least one lens component arranged on the image side of said lens component and comprising a... | 06/01/1993 |
| 5175652 | Imaging optical system An imaging optical system has a first objective lens movable along the optical axis thereof for focus adjustment and for forming the image of an object at infinity, and a second objective lens for forming the image again at a predetermined position at a p... | 12/29/1992 |
| 5142409 | Objective lens system An objective lens system for the rays within the ultraviolet region comprising, in the order from the object side, a first lens unit which has a positive refractive power, and comprises a meniscus lens component having a strongly concave surface on the ob... | 08/25/1992 |
| 5132845 | High mangification objective lens system A high magnification objective lens system comprising, in the order from the object side, a first positive lens unit which comprises a positive meniscus lens component having a concave surface on the object side and a plurality of positive cemented lens c... | 07/21/1992 |
| 5130845 | Real image viewfinder A real image viewfinder with an objective having movable focusing lens(es) and a field lens at the end thereof furtherest from the field of view, an eyepiece lens and image inverting optics, preferably in the form of a Type II Porro prism wherein the real... | 07/14/1992 |
| 5121255 | Objective lens system for microscope An objective lens system for a microscope. The objective lens system includes a first lens group which includes a lens in the form of meniscus made of quartz or fluorite having a positive power; and a second lens group including a biconcave lens made of q... | 06/09/1992 |
| 5076676 | Objective lens system for microscopes An objective lens system for microscopes comprising, in the order from the object side, a first lens unit which has a positive refractive power, comprises a positive meniscus lens component having a convex surface on the image side and allows a diverging ... | 12/31/1991 |
| 5038258 | Illuminating arrangement for illuminating an object with incident light The invention relates to an illuminating arrangement for illuminating an object with incident light wherein the angle of the incident light is selectable. The illuminating arrangement includes a plurality of individual light sources which can be switched ... | 08/06/1991 |
| 5000548 | Microscope objective A finite conjugate imaging system useful as a microscope objective comprises four lens elements (10), (11), (12), and (13) disposed coaxially along an optic axis. Lens elements (10) and (12) are made of Hoya LAC7 glass, and lens elements (11) and (13) are... | 03/19/1991 |
| 4989957 | Objective lens for microscopes An objective lens for microscopes comprises a first lens unit, a second lens unit which is movable along an optical axis, and a third lens unit. The second lens unit includes elements of a compound lens component cemented to each other to dispose an optic... | 02/05/1991 |
| 4946265 | Microscope whose enlargement magnification is changeable A microscope whose enlargement magnification is changeable includes a plurality of interchangeable first objective lenses of different focal lengths for changing a divergent light flux from an object on a stage into a parallel light flux, a first intercha... | 08/07/1990 |
| 4682859 | Objective lens for microscope An objective lens for a microscope includes a plane parallel plate detachably mounted on a lens barrel so as to be interposed between an object being observed and a front lens as a result of this arrangement, correction is made for a change in aberrations... | 07/28/1987 |
| 4373785 | Microscope objective A eight component, oil-immersion, apochromatic microscope objective has a numerical aperture of 1.30. When used with a telescope as described in U.S. Pat. No. 3,355,234, the objective provides a magnification of 100 X in an embodiment having a focal lengt... | 02/15/1983 |
| 4365871 | Optical system for microscopes An optical system for microscopes to enable microscopes having objectives of infinite exit vertex focal length to be made compatible with microscopes having objectives of finite exit vertex focal length, and vice versa, thus enablying the microscope user ... | 12/28/1982 |
| 4208101 | Immersion objective for a microscope The invention contemplates a multiple-element microscope objective assembly which is removably mountable to a microscope body and which includes a front element adapted for immersion contact with a liquid medium through which a microscopic object is to be... | 06/17/1980 |
