EA200401605A1 - LENS - Google Patents
LENSInfo
- Publication number
- EA200401605A1 EA200401605A1 EA200401605A EA200401605A EA200401605A1 EA 200401605 A1 EA200401605 A1 EA 200401605A1 EA 200401605 A EA200401605 A EA 200401605A EA 200401605 A EA200401605 A EA 200401605A EA 200401605 A1 EA200401605 A1 EA 200401605A1
- Authority
- EA
- Eurasian Patent Office
- Prior art keywords
- lens
- biconvex
- meniscus
- objects
- facing
- Prior art date
Links
Landscapes
- Lenses (AREA)
Abstract
Изобретение относится к оптико-электронному приборостроению, а именно к объективам, и может быть использовано в качестве объектива прибора ночного видения (ПНВ). Объектив содержит последовательно расположенные по ходу лучей двояковыпуклую линзу, мениск, положительный мениск, обращенный выпуклой поверхностью к пространству предметов, и одиночную линзу, отличающийся тем, что мениск выполнен склеенным из двояковыпуклой и двояковогнутой линз, отстоящим от двояковыпуклой линзы на расстоянии не менее 0,25 фокусного расстояния объектива, а между положительным мениском и одиночной линзой введен отрицательный мениск, обращенный выпуклой поверхностью к пространству предметов, при этом одиночная линза имеет двояковыпуклую форму. Предложенная конструкция объектива позволяет улучшить качество изображения за счет увеличения полихроматических частотно-контрастных характеристик объектива по полю зрения.The invention relates to opto-electronic instrumentation, namely, lenses, and can be used as a lens night vision device (NVD). The lens contains a biconvex lens sequentially arranged along the rays, a meniscus, a positive meniscus facing a convex surface to the space of objects, and a single lens, characterized in that the meniscus is made glued together from a biconvex and biconcave lens that is separated from the biconvex lens at a distance of not less than 0.25 the focal length of the lens, and between the positive meniscus and a single lens, a negative meniscus is introduced, facing a convex surface to the space of objects, with a single lens and has biconvex shape. The proposed design of the lens can improve image quality by increasing the polychromatic frequency-contrast characteristics of the lens in the field of view.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EA200401605A EA007361B1 (en) | 2004-11-11 | 2004-11-11 | Lens |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EA200401605A EA007361B1 (en) | 2004-11-11 | 2004-11-11 | Lens |
Publications (2)
Publication Number | Publication Date |
---|---|
EA200401605A1 true EA200401605A1 (en) | 2006-06-30 |
EA007361B1 EA007361B1 (en) | 2006-10-27 |
Family
ID=42799186
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EA200401605A EA007361B1 (en) | 2004-11-11 | 2004-11-11 | Lens |
Country Status (1)
Country | Link |
---|---|
EA (1) | EA007361B1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU204540U1 (en) * | 2020-01-22 | 2021-05-31 | Открытое Акционерное Общество "Пеленг" | LENS |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU34783A1 (en) * | 1933-08-17 | 1934-02-28 | Г.А. Ган | Photographic lens |
CH463951A (en) * | 1967-07-18 | 1968-10-15 | Paillard Sa | Optical system for forming an image, comprising means for measuring the intensity of light |
GB1259086A (en) * | 1970-02-13 | 1972-01-05 | ||
RU2091831C1 (en) * | 1994-02-14 | 1997-09-27 | Бабинцев Владимир Федорович | High aperture-ratio lens (variants) |
RU2105333C1 (en) * | 1995-02-13 | 1998-02-20 | Акционерное общество "Ростовский оптико-механический завод" | Fast lens |
-
2004
- 2004-11-11 EA EA200401605A patent/EA007361B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EA007361B1 (en) | 2006-10-27 |
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Legal Events
Date | Code | Title | Description |
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MM4A | Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s) |
Designated state(s): AM AZ KZ KG MD TJ TM |
|
TC4A | Change in name of a patent proprietor in a eurasian patent | ||
QB4A | Registration of a licence in a contracting state | ||
TC4A | Change in name of a patent proprietor in a eurasian patent |