RU2007140946A - COMPACT VARIABLE LENS - Google Patents
COMPACT VARIABLE LENS Download PDFInfo
- Publication number
- RU2007140946A RU2007140946A RU2007140946/28A RU2007140946A RU2007140946A RU 2007140946 A RU2007140946 A RU 2007140946A RU 2007140946/28 A RU2007140946/28 A RU 2007140946/28A RU 2007140946 A RU2007140946 A RU 2007140946A RU 2007140946 A RU2007140946 A RU 2007140946A
- Authority
- RU
- Russia
- Prior art keywords
- component
- lens
- positive
- increase
- difference
- Prior art date
Links
Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B15/00—Optical objectives with means for varying the magnification
- G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
- G02B15/145—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having five groups only
- G02B15/1451—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having five groups only the first group being positive
- G02B15/145121—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having five groups only the first group being positive arranged +-+-+
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/02—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of crystals, e.g. rock-salt, semi-conductors
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/009—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras having zoom function
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/0006—Arrays
- G02B3/0037—Arrays characterized by the distribution or form of lenses
- G02B3/0062—Stacked lens arrays, i.e. refractive surfaces arranged in at least two planes, without structurally separate optical elements in-between
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/0087—Simple or compound lenses with index gradient
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B2003/0093—Simple or compound lenses characterised by the shape
Abstract
Компактный вариообъектив с перепадом фокусного расстояния 39х, состоящий из пяти последовательно расположенных вдоль оптической оси компонент: ! первой положительной неподвижной компоненты, второй отрицательной подвижной компоненты, обеспечивающей увеличение перепада фокального расстояния объектива, движущегося квазилинейно от объекта к изображению, третьей неподвижной положительной компоненты, четвертой отрицательной подвижной компоненты, обеспечивающей увеличение фокального расстояния объектива, и пятой положительной слабоподвижной компоненты, ! отличающийся тем, что увеличение перепада фокусного расстояния объектива и улучшение качества изображения во всех шести позициях достигается за счет того, что: ! четвертая компонента выполнена с возможностью перемещения в ведомом режиме по отношению ко второй компоненте в обратном направлении и квазилинейном режиме; ! пятая компонента выполнена с возможностью малых перемещений, которые являются сугубо нелинейными и немонотонными и управляются цепью автофокусировки; ! первая и последующие положительные компоненты выполнены из малодисперсионного стекла; ! первая отрицательная менискообразная линза первой компоненты изготовлена из сверхтяжелого флинта и отделена от второй линзы данной компоненты.Compact zoom lens with 39x focal length difference, consisting of five components in series along the optical axis:! the first positive fixed component, the second negative movable component, providing an increase in the difference in the focal distance of the lens moving quasilinearly from the object to the image, the third fixed positive component, the fourth negative movable component, providing an increase in the focal distance of the lens, and the fifth positive weakly movable component,! characterized in that increasing the lens focal length difference and improving the image quality in all six positions is achieved due to the fact that:! the fourth component is configured to move in a slave mode with respect to the second component in the opposite direction and in a quasi-linear mode; ! the fifth component is made with the possibility of small movements, which are highly non-linear and non-monotonic and controlled by the autofocus circuit; ! the first and subsequent positive components are made of low dispersion glass; ! the first negative meniscus lens of the first component is made of an extra-heavy flint and is separated from the second lens of this component.
Claims (1)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2007140946/28A RU2007140946A (en) | 2007-11-07 | 2007-11-07 | COMPACT VARIABLE LENS |
KR1020080100196A KR20090047350A (en) | 2007-11-07 | 2008-10-13 | Compact zoom lens |
US12/267,134 US7777966B2 (en) | 2007-11-07 | 2008-11-07 | Compact zoom lens |
EP08168590.1A EP2060944B1 (en) | 2007-11-07 | 2008-11-07 | Compact zoom lens |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2007140946/28A RU2007140946A (en) | 2007-11-07 | 2007-11-07 | COMPACT VARIABLE LENS |
Publications (1)
Publication Number | Publication Date |
---|---|
RU2007140946A true RU2007140946A (en) | 2009-05-20 |
Family
ID=40856848
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU2007140946/28A RU2007140946A (en) | 2007-11-07 | 2007-11-07 | COMPACT VARIABLE LENS |
Country Status (2)
Country | Link |
---|---|
KR (1) | KR20090047350A (en) |
RU (1) | RU2007140946A (en) |
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2007
- 2007-11-07 RU RU2007140946/28A patent/RU2007140946A/en not_active Application Discontinuation
-
2008
- 2008-10-13 KR KR1020080100196A patent/KR20090047350A/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
KR20090047350A (en) | 2009-05-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FA92 | Acknowledgement of application withdrawn (lack of supplementary materials submitted) |
Effective date: 20091013 |