SU140323A1 - Device for differential projection of aerial photographs in stereophotogrammetric instruments - Google Patents

Device for differential projection of aerial photographs in stereophotogrammetric instruments

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Publication number
SU140323A1
SU140323A1 SU687357A SU687357A SU140323A1 SU 140323 A1 SU140323 A1 SU 140323A1 SU 687357 A SU687357 A SU 687357A SU 687357 A SU687357 A SU 687357A SU 140323 A1 SU140323 A1 SU 140323A1
Authority
SU
USSR - Soviet Union
Prior art keywords
aerial photographs
differential projection
stereophotogrammetric
instruments
image
Prior art date
Application number
SU687357A
Other languages
Russian (ru)
Inventor
Н.П. Заказнов
Original Assignee
Н.П. Заказнов
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Н.П. Заказнов filed Critical Н.П. Заказнов
Priority to SU687357A priority Critical patent/SU140323A1/en
Application granted granted Critical
Publication of SU140323A1 publication Critical patent/SU140323A1/en

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Description

Предлагаемое устройство дифференциального проектировани  аароснимков в стереофотограмметрических приборах позвол ет в отличие от известных примен ющихс  дл  этих целей устройств устранить разномасштабность изображени , вызванного наклоном аэроснимка. Достигаетс  это путем применени  в устройстве кулисы дл  одновременного перемещени  вдоль нее объектива и св занной с ним диафрагмы со щелью и толкател , предназначенного дл  установки кулисы в зависимости от заданного коэффициента трансформировани  дл  данной линии неискаженных масштабов аэроснимка.The proposed device for the differential design of aaroficles in stereophotogrammetric instruments makes it possible, in contrast to the known devices used for these purposes, to eliminate the different scale of the image caused by the inclination of the aerial photograph. This is achieved by using in the device the scenes to simultaneously move the lens and the diaphragm with a slit and the pusher associated with it, designed to set the scenes depending on the specified transformation ratio for a given line of undistorted aerial photographs.

Изменени  масштаба изображени , вызванные углом наклона снимка при дифференциальном его проектировании (через щель), обеспечиваютс  с помощью соответствующих небольших перемещений объектива при неизменном и взаимно параллельном положении плоскостей снимка и экрана. Возникающа  при этом нерезкость изображени  вследствие нарушени  оптического сопр жени  при соответствующем подборе фокусного рассто ни  проектирующего объектива и малых углах наклона снимка будет незначительна.Image scaling caused by the angle of the image with its differential design (through the slit) is provided by the corresponding small lens movements with a constant and mutually parallel position of the image and screen planes. The resulting image blurring due to disturbance of optical interfacing with an appropriate selection of the focal length of the projecting lens and small angles of inclination of the image will be insignificant.

На чертеже представлена принципиальна  схема устройства.The drawing shows a schematic diagram of the device.

Устройство содержит: каретку дл  негатива, кулису /, толкатель 2, объектив 3, диафрагму со щелью 4 и экран, параллельный плоскости негатива. Кулиса / устанавливаетс  толкателем 2 в зависимости от заданного коэффициента трансформировани  дл  данной линии неискаженных масштабов аэроснимка и  вл етс  направл ющей дл  одновременного движени  объектива 3 и св занной с ним диафрагмы со щелью 4. Движение щели диафрагмы параллельно линии неискаженных масштабов. Рассто ние L между плоскост ми негатива N и экрана Е дл  заданного коэффициента трансформировани  относительно линии неискаженных масштабов остаетс  посто нным.The device comprises: a carriage for a negative, a slide /, a pusher 2, a lens 3, an aperture with a slit 4 and a screen parallel to the plane of the negative. The linkage / is set by the pusher 2, depending on the given transformation ratio for a given line of undistorted aerial photograph scale, and is a guide for simultaneous movement of lens 3 and the diaphragm 4 associated with it. The aperture slot moves parallel to the line of undistorted scales. The distance L between the negative planes N and the screen E for a given transformation ratio with respect to the line of undistorted scales remains constant.

SU687357A 1960-11-30 1960-11-30 Device for differential projection of aerial photographs in stereophotogrammetric instruments SU140323A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU687357A SU140323A1 (en) 1960-11-30 1960-11-30 Device for differential projection of aerial photographs in stereophotogrammetric instruments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU687357A SU140323A1 (en) 1960-11-30 1960-11-30 Device for differential projection of aerial photographs in stereophotogrammetric instruments

Publications (1)

Publication Number Publication Date
SU140323A1 true SU140323A1 (en) 1961-11-30

Family

ID=48296338

Family Applications (1)

Application Number Title Priority Date Filing Date
SU687357A SU140323A1 (en) 1960-11-30 1960-11-30 Device for differential projection of aerial photographs in stereophotogrammetric instruments

Country Status (1)

Country Link
SU (1) SU140323A1 (en)

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