| Patent Number |
Title Of Patent |
Date Issued |
| 7595935 |
Rod lens |
September 29, 2009 |
| A rod lens comprises a tubular body having a first end, a second end, a length and a diameter, a first optically transparent closing element, tightly sealing the first end of the tubular body, a second optical transparent closing element, tightly sealing the second end of the body. T |
| 7586679 |
Image transmission system from three rod lenses for rigid endoscopes |
September 8, 2009 |
| The invention relates to an image transmission system for rigid endoscopes, having a central rod lens and two outer rod lenses, which are symmetrical in respect to one another in relation to a vertical central plane of the image transmission system relative to the optical axis, where |
| 7553277 |
Endoscope with variable direction of view |
June 30, 2009 |
| An endoscope, comprising an elongated rigid shaft and an optical imaging system arranged at a distal end of the shaft for receiving light from an observation area, wherein the optical imaging system is pivotable with respect to the shaft about a first pivot axis which runs about tran |
| 7002741 |
Image transmission system for endoscopes and method of producing a rod lens |
February 21, 2006 |
| The invention relates to an image transmission system for endoscopes and similar viewing tubes with at least one rod lens and at least one additional lens system. In order to produce an image transmission system of simple and economical construction, it is proposed in accordance with |
| 6965715 |
Lens and method for producing a lens |
November 15, 2005 |
| A rod lens with one or more optically active surfaces and one or more inactive surfaces, in which one part of the optically inactive surface or surfaces, especially a lens facet and/or radial peripheral surface of a lens, is smooth, and a method for smoothing one part of one or more |
| 6833912 |
Apparatus for testing the state of an endoscope |
December 21, 2004 |
| An apparatus for testing the state of the optical system of an endoscope comprises a first supporting device for the endoscope, a test pattern and a second supporting device for the test pattern, wherein the test pattern comprises a pattern, which allows a check of the actual viewing dir |
| 6804052 |
Rod lens system for rigid endoscopes |
October 12, 2004 |
| A linear lens system for rigid endoscopes for the conversion of a distal intermediate image into a proximal intermediate image, is characterized by a first non-symmetrically arranged sequence of two linear lenses, a subsequent odd sequence of similar, non-cemented, symmetrically biconvex |
| 6788637 |
Apparatus for reading from and/or writing to optical recording media |
September 7, 2004 |
| An apparatus for reading from and/or writing to optical recording media on which data markings are arranged along tracks arranged next to one another. The apparatus according to the present invention comprises a light source, a focusing means and an intensity distribution converter. In |
| 6618207 |
Endoscope lens, and an endoscope equipped with such a lens |
September 9, 2003 |
| The invention relates to an endoscope lens which shows only a low level of distortion even at large angles of sight and whose elements can be produced and assembled with little effort, consisting of a first lens group having negative total refractive power, of an aperture diaphragm, |
| 6301043 |
Endoscope with at least one reversal system with a non-homogeneous refraction index |
October 9, 2001 |
| An endoscope having a distally disposed lens and an optical transmission system which transmits the image of the lens to the proximal end of the endoscope is provided. The transmission system includes at least one reversing system, which includes two elements in mutual mirror-inverted |
