SU126218A1 - Method for photogrammetric study of optical elements of the eye - Google Patents
Method for photogrammetric study of optical elements of the eyeInfo
- Publication number
- SU126218A1 SU126218A1 SU631374A SU631374A SU126218A1 SU 126218 A1 SU126218 A1 SU 126218A1 SU 631374 A SU631374 A SU 631374A SU 631374 A SU631374 A SU 631374A SU 126218 A1 SU126218 A1 SU 126218A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- eye
- photogrammetric
- optical elements
- study
- optical
- Prior art date
Links
Landscapes
- Eye Examination Apparatus (AREA)
Description
Изобретение относитс к способам исследовани оптических элементов глаза.This invention relates to methods for studying optical elements of the eye.
Недостатки известных способов исследовани оптических элементов глаза путем измерени фотографий оптического среза глаза в свете щелевой лампы состо т: в необходимости значительного увеличени негативов , что приводит к снижению четкости измер емых контуров и вли ет на точность измерений; не учитываетс разномасштабность различных участков фотографических изображений оптического среза глаза; дл учета вли ни угла, составленного направлением оптической оси фотокамеры и плоскостью щелевого среза, делаетс не менее двух снимков, каждый из которых требует отдельной установки, что не гарантирует идентичности элементов, отображаемых на негативах.The disadvantages of the known methods for studying optical elements of the eye by measuring photographs of the optical section of the eye in the light of a slit lamp are: the need to significantly increase the negatives, which leads to a decrease in the clarity of the measured contours and affects the measurement accuracy; does not take into account the different scales of different areas of photographic images of the optical section of the eye; To take into account the effect of the angle made by the direction of the optical axis of the camera and the plane of the slit cut, at least two pictures are taken, each of which requires a separate installation, which does not guarantee the identity of the elements displayed on the negatives.
Предлагаемый способ в значительной мере устран ет эти недостатки и повышает точность определени оптических п/араметров глаза. С этой целью, фотографирование оптического среза глаза производ т стереофотограмметрической камерой с одной установки в свете щелевой лампы, снабженной двухрежимньш импульсным источником света. Полученные стереопары измер ют на стереофотограмметрическом приборе, например стереокомпараторе, и по результатам измерений вычисл ют парамет1ры оптического аппарата глаза.The proposed method substantially eliminates these drawbacks and improves the accuracy of determining the optical eye parameters. To this end, photographing the optical section of the eye is made by a stereophotogrammetric camera from a single installation in the light of a slit lamp equipped with a dual-mode pulsed light source. The resulting stereo pairs are measured on a stereo photogrammetric instrument, for example, a stereocomparator, and the parameters of the optical apparatus of the eye are calculated from the measurement results.
В результате достигаетс более высока точность стереоскопических измерений по сравнению с монокул рными.As a result, stereoscopic measurements are more accurate than monocular ones.
Предмет изобретени Subject invention
Способ фотограмметрического исследовани оптических элементов глаза, отличающийс тем, что, с целью повышени точности определени оптических параметров глаза, фотографирование щелевого среза производ т стереофотограмметрической камерой с одной установки, после чего полученные стереопары измер ют на стереофотограмметрических приборах и по результатам измерений вычисл ют искомые параметры.A method of photogrammetric study of optical elements of the eye, characterized in that, in order to improve the accuracy of determining the optical parameters of the eye, photographing a slit slice is performed with a stereophotogram camera from one installation, after which the resulting stereo pairs are measured on stereo photogrammetric devices and the parameters are calculated using the measurement results.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU631374A SU126218A1 (en) | 1959-06-18 | 1959-06-18 | Method for photogrammetric study of optical elements of the eye |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU631374A SU126218A1 (en) | 1959-06-18 | 1959-06-18 | Method for photogrammetric study of optical elements of the eye |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU126218A1 true SU126218A1 (en) | 1959-11-30 |
Family
ID=48397536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU631374A SU126218A1 (en) | 1959-06-18 | 1959-06-18 | Method for photogrammetric study of optical elements of the eye |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU126218A1 (en) |
-
1959
- 1959-06-18 SU SU631374A patent/SU126218A1/en active
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