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Class Information
Number: 351/206
Name: Optics: eye examining, vision testing and correcting > Eye examining or testing instrument > Objective type > Including eye photography
Description: Subject matter includes still or motion-picture apparatus for photographing the interior of the eye.










Sub-classes under this class:

Class Number Class Name Patents
351/208 Having means to detect proper distance or alignment (i.e., eye to instrument) 311
351/207 Having spurious reflection blocking 45


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19

Patent Number Title Of Patent Date Issued
4469416 Automatic focusing means for an ophthalmoscopic instrument Sep. 4, 1984
4468104 Working distance detecting device for ophthalmic instruments Aug. 28, 1984
4464608 Circuit for controlling optical apparatus such as an ophthalmoscope Aug. 7, 1984
4452514 Optical device for imaging an interior of an eye Jun. 5, 1984
4452517 Focusing system for eye-ground camera Jun. 5, 1984
4440477 Method and device for measuring the optical power of the cornea Apr. 3, 1984
4439023 Optical system for ophthalmological instruments Mar. 27, 1984
4436388 Eye-fundus camera provided with automatic focusing function Mar. 13, 1984
4429970 Illuminating light amount controllable retinal camera Feb. 7, 1984
4423931 Fundus camera accessory for analysis of the ocular fundus contour Jan. 3, 1984
4422735 Fundus camera Dec. 27, 1983
4412728 Focusing apparatus for eye-fundus examining instrument Nov. 1, 1983
4411502 Ophthalmological instrument for examination of anterior and posterior portions of the eye Oct. 25, 1983
4403841 Apparatus for examining anterior portions of the eye Sep. 13, 1983
4402601 Fundus camera-based retinal laser doppler velocimeter Sep. 6, 1983
4396260 Slit lamp having replaceable objective lens unit for observation of cornea Aug. 2, 1983
4394074 Fiberoptic-lighted optical apparatus Jul. 19, 1983
4378147 Adaptor for use with ophthalmological microscope Mar. 29, 1983
4372655 Automatic eye-refractometer Feb. 8, 1983
4370033 Eyeball examining device Jan. 25, 1983
4370034 Ophthalmological instrument of continuously variable magnification Jan. 25, 1983
4329025 Eye fundus camera having a fluorescent photographing device May. 11, 1982
4322137 Fundus observation and photographing optical system Mar. 30, 1982
4318585 Optical system with an afocal focusing group Mar. 9, 1982
4312574 Phototopometer Jan. 26, 1982
4304483 Hand-held retina photographing apparatus Dec. 8, 1981
4283124 Eye fundus camera Aug. 11, 1981
4283124 Eye fundus camera Aug. 11, 1981
4279478 Eye examining instrument Jul. 21, 1981
4277150 Eye refractmeter Jul. 7, 1981
4266861 Eye fundus camera May. 12, 1981
4265518 Variable magnification apparatus having illumination compensating ability May. 5, 1981
4259948 Endoscopic system Apr. 7, 1981
4256384 Eyeball examining device Mar. 17, 1981
4253743 Eye testing instrument Mar. 3, 1981
4252420 Ophthalmoscopical apparatus provided with adjustment system Feb. 24, 1981
4251139 Eye examining instrument Feb. 17, 1981
4249802 Ophthalmological instrument Feb. 10, 1981
4248505 Ophthalmological instrument Feb. 3, 1981
4248506 Eye fundus observing optical system Feb. 3, 1981
4238142 Method and apparatus for examining and photographing the ocular fundus Dec. 9, 1980
4235529 Apparatus for recording images of crystalline lens sections Nov. 25, 1980
4235540 Eye fundus camera having variable power photographing optical system Nov. 25, 1980
4222634 Wide angle objective for examination of the eye Sep. 16, 1980
4213678 Scanning ophthalmoscope for examining the fundus of the eye Jul. 22, 1980
4208107 Drugless eye examination system Jun. 17, 1980
4200362 Ophthalmoscope with uniform illumination Apr. 29, 1980
4200376 Fluorescent ophthalmoscopic photographing apparatus Apr. 29, 1980
4198143 Apparatus for taking photographs of sections of crystalline lenses in which line focusing moves lens in its own plane Apr. 15, 1980
4198144 Eye fundus camera Apr. 15, 1980

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19










 
 
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