SU1223184A1 - High-speed lens - Google Patents

Description

one

The invention relates to optical instrumentation, namely to lenses, and can be used in photo optics and in working with various image receivers.

The aim of the invention is to increase the relative aperture and improve image quality.

The drawing shows the optical circuit of the aperture lens. I The lens consists of six components and. aperture. The first component is a positive double lens 1, the second is a negative meniscus 2, the third is a positive meniscus 3, the fourth negative component is made in the form of meniscus A glued together from a double-curved lens 5 and a double obtuse lens 6, the fifth component is a double-glass lens 7, the sixth positive component is made in the form of a meniscus 8, glued together from a double to convex 9 and two to a concave 10 lenses. Menisci 2 and 3 are turned towards the subject. Aperture 11 is located between the third and fourth components.

The focal length of the lens is 50 mm, the relative aperture is 1: 1, the field angle of view. Center floor

Compiled by V. Arkhipov Editor G. Volkova Tehred N. Bonkalo Corrector G. Reshetnik

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VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Branch ShSh Patent, Uzhgorod, st. Project, 4

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31

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84

The diameter of the scattering circle for

The wavelength of 546 nm does not exceed 0.1 mm.

The astigmatic difference is no more than 0.11 mm across the field of view and 0.7 mm at the edge of the field of view. Distortion is not more than 2%.

Claims (1)

Invention Formula A high-aperture lens containing six components and a diaphragm installed between the third and fourth components, of which the first positive, second, third and sixth positive are menisci, convex to the object, the fourth is a meniscus glued together from two-bent and two-convex lenses, and n This is a two-lens lens, characterized in that, in order to increase the relative aperture and improve image quality, the first component is made in the form of a double-tinted lens, the second is negative, the third is positive first with a thickness of 0.33 focal length of the lens, the fourth - sixth negative and glued from FEB Ko vtukloy and biconcave lenses.