Optical: systems and elements – Having significant infrared or ultraviolet property – Lens – lens system or component
Patent
1991-03-20
1992-09-01
Bovernick, Rodney B.
Optical: systems and elements
Having significant infrared or ultraviolet property
Lens, lens system or component
359350, 359658, 359659, G02B 2116
Patent
active
051444755
ABSTRACT:
An objective lens system for use within a microscope includes six lenses which are spaced apart from an object side. The first, the third and the fifth lenses are made of quartz, the fourth and the sixth lenses are made of fluorite, while the second lens is made of either quartz or fluorite. The system transmits ultraviolet and/or far ultraviolet light is simply constructed and corrects chromatic aberration.
REFERENCES:
patent: 4283123 (1981-08-01), Tojyo
patent: 4461546 (1984-07-01), Muffoletto et al.
patent: 4770477 (1988-09-01), Shafer
Bovernick Rodney B.
Dainippon Screen Mfg. Co,. Ltd.
Ryan J. P.
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