SU498594A1 - High aperture magnifier with rendered exit pupil - Google Patents

Description

one

The invention relates to computing optics devices, namely, high-aperture loupes with a rendered exit pupil, and can be used in modern optical devices.

High-aperture loops are known, consisting of six lenses, the first of which is a meniscus facing the object with a concavity, the second is a single double-curved lens, the third and shchest are single positive lenses, and the fourth and fifth form a two-glued component. However, the known high-aperture moons have an insufficient size of the field of view, the last segment of the length of a magnifying glass at high magnifications.

The purpose of the invention is to increase the zero of the view, the length of the magnifying glass, the back section and the improvement of the image quality.

This is achieved by the fact that the first component is made in the form of a double-glued positive meniscus enlarged with the concavity to the object, the second single component is in the form of a positive meniscus facing the concavity towards the object, the fourth component is in the form of a single positive lens, and the sixth component is in the form of a single negative meniscus facing concavity to the subject.

The drawing is a magnifying optical circuit.

Magnifier consists of six components and seven lenses. The first component 1 is made of two-glued two menisci facing inward with the object, and it has optical power (0.2-0.4) второй, the second single meniscus 2 that faces the object with concavity has optical power (0.1-0.8 ) f, where f is the optical power of the whole magnifying glass. The third and fourth components are single positive lenses 3 and 4 with optical power (0.1–0.4) φ and (0.1–0.3) φ, respectively. The fifth and shchetoy components are single menisci 5 and 6, facing the concavity to the object, with optical power (0.1-0.3) f, and meniscus 6 is negative.

The aberrations of the magnifying glass are corrected within the entire field of vision.

Distortion on the edge of the field of view does not exceed 1%. The magnifier is corrected for a wavelength of 1,546.1 and is achromatized for the spectral range from A, 530 nm to X 560 nm.

The design version of the magnifying glass has an increase of 9, a relative aperture of 1: 1.9, a focal length of 13.1, a linear field of view of 11.5 mm, an angular field of view of 47 °, removal of the plane of the exit pupil - 28 mm, and a diameter of the exit pupil of 70 mm.

Subject invention

A high-magnification loupe with a rendered exit pupil, containing six components, of which the second, third and fifth are made in the form of single lenses, characterized in that, in order to increase the field of view, the length of the loupe, the size of the posterior segment and increase the image quality, the first component made in the form of a double-glued positive meniscus with a concavity toward the object, the second single component in the form of a positive meniscus with concavity toward the object, the fourth component in the form of a single positive lens, and the stable component is in the form of a single negative meniscus with concavity facing the object.