Optical: systems and elements – Compound lens system – With relay
Patent
1992-02-06
1994-08-23
Henry, Jon W.
Optical: systems and elements
Compound lens system
With relay
359643, 359367, 128 4, 128 6, 348 65, A61B 104, A61B 106, G02B 2324
Patent
active
053412400
ABSTRACT:
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 molded plastic lenses. Each of the relay modules contains an entry glass rod, an intermediate glass rod, and an exit rod, each having flat end surfaces and two identical molded plastic doublets. The elements of the ocular are all of glass and include an axially movable focusing doublet and two non-movable doublets. The disposable probe introduces certain aberrations into the image. The non-disposable focusing ocular corrects these aberrations. A single curved surface is formed on the distal glass window of the probe; all other curved optical surfaces of the disposable probe are formed on molded plastic members, thereby reducing the cost of the probe sufficiently to be cost-effective for single patient, disposable use.
REFERENCES:
patent: 1741575 (1929-12-01), Leiter
patent: 1915811 (1933-06-01), Wolf
patent: 2406762 (1946-09-01), Grey
patent: 2453218 (1948-11-01), Grey
patent: 2519760 (1950-08-01), Hett
patent: 2571308 (1951-10-01), Taylor
patent: 2899862 (1959-08-01), Baker
patent: 3257902 (1966-06-01), Hopkins
patent: 3380335 (1968-04-01), Clave et al.
patent: 3468598 (1969-09-01), Ito
patent: 3583785 (1971-06-01), Boardman
patent: 3625583 (1971-12-01), Beiser
patent: 3836249 (1974-09-01), Weber
patent: 3936149 (1976-02-01), Imai
patent: 4025155 (1977-05-01), Imai
patent: 4036218 (1977-07-01), Yamashita et al.
patent: 4076018 (1978-02-01), Heckele
patent: 4086000 (1978-04-01), Cox et al.
patent: 4138192 (1979-02-01), Yamasita
patent: 4140364 (1979-02-01), Yamashita et al.
patent: 4149769 (1979-04-01), Zobel
patent: 4165917 (1979-08-01), Yamasita et al.
patent: 4168882 (1979-09-01), Hopkins
patent: 4195904 (1980-04-01), Yamashita
patent: 4354730 (1982-10-01), Bel
patent: 4385810 (1983-05-01), Hamon
patent: 4398811 (1983-08-01), Nishioka et al.
patent: 4500181 (1985-02-01), Takahashi
patent: 4501477 (1985-02-01), Sunaga
patent: 4515444 (1985-05-01), Prescott et al.
patent: 4545652 (1985-10-01), Hoogland
patent: 4575195 (1986-03-01), Hoogland
patent: 4624243 (1986-11-01), Lowery et al.
patent: 4641927 (1987-02-01), Prescott et al.
patent: 4655557 (1987-04-01), Takahashi
patent: 4662728 (1987-05-01), Whitehead
patent: 4671630 (1987-06-01), Takahashi
patent: 4676606 (1987-06-01), Takahashi
patent: 4684224 (1987-08-01), Yamashita et al.
patent: 4693568 (1987-09-01), Takahashi
patent: 4720178 (1988-01-01), Nishioka et al.
patent: 4723843 (1988-02-01), Zobel
patent: 4730909 (1988-03-01), Takahashi
patent: 4735491 (1988-04-01), Takahashi
patent: 4742818 (1988-05-01), Hughes et al.
patent: 4746203 (1988-05-01), Nishioka et al.
patent: 4755029 (1988-07-01), Okabe
patent: 4783154 (1988-11-01), Takahashi
patent: 4783156 (1988-11-01), Yokota
patent: 4805971 (1989-02-01), Fantone
patent: 4815833 (1989-03-01), Zobel et al.
patent: 4828247 (1989-06-01), Forkner
patent: 4859040 (1989-08-01), Kitagishi et al.
patent: 4895433 (1990-01-01), Takahashi et al.
patent: 4907868 (1990-03-01), Kitagishi et al.
patent: 4916534 (1990-04-01), Takahashi et al.
patent: 4930880 (1990-06-01), Miyauchi
patent: 4946267 (1990-08-01), Hoogland
patent: 4964710 (1990-10-01), Leiner
patent: 5094004 (1991-11-01), Matsumura
patent: 5142410 (1982-08-01), Ono et al.
patent: 5188092 (1993-02-01), White
A. I. Molev, in "A rod-like optical system for endoscopes", Biomedical Engineering (a translated Russian language Journal) vol. 9, No. 4, pp. 206-209 (Jul.-Aug. 1975).
Moore et al., "Third-Order Aberrations of Inhomogeneous Lenses with Cylindrical Index Distributions", Journal of the Optical Society of America, vol. 61 No. 9 (1971).
The Handbook of Plastics Optics, 2nd Edition, published by U.S. Precision Lens Co. of Cincinnati, Ohio (1983).
Henry Jon W.
Linvatec Corporation
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