SU1569791A1 - Photographic apparatus optical view finder - Google Patents
Photographic apparatus optical view finder Download PDFInfo
- Publication number
- SU1569791A1 SU1569791A1 SU884363384A SU4363384A SU1569791A1 SU 1569791 A1 SU1569791 A1 SU 1569791A1 SU 884363384 A SU884363384 A SU 884363384A SU 4363384 A SU4363384 A SU 4363384A SU 1569791 A1 SU1569791 A1 SU 1569791A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- frame
- viewfinder
- mirror
- splitting plate
- marks
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 title claims abstract 4
Landscapes
- Viewfinders (AREA)
Abstract
Изобретение относитс к фототехнике, в частности к видоискател м незеркальных фотоаппаратов, и позвол ет сократить поперечные габариты видоискател , улучшить его светотехнические характеристики, а также обеспечить возможность регулировани ркости изображений меток рамки. Видоискатель фотоаппарата содержит отрицательный объектив 1, положительный окул р 2, светоделительную пластину 3, непрозрачную рамку 4 с прозрачными метками М и сферическое зеркало 5. Светоделительна пластина 3 расположена под углом 45° к оптической оси видоискател . Рамка 4 установлена по ходу лучей света, прошедших через объектив 1 и отраженных от светоделительной пластины 3. Сферическое зеркало 5 расположено по ходу лучей света, прошедших прозрачные метки М рамки 4 и светоделительную пластину 3. Видоискатель дополнительно содержит зеркало 6, установленное с возможностью независимого вращени вокруг параллельной и перпендикул рной рамке осей Г и В. 1 з.п. ф-лы, 1 ил.The invention relates to photographic equipment, in particular to viewfinders of non-mirrored cameras, and allows to reduce the transverse dimensions of the viewfinder, to improve its lighting characteristics, as well as to provide the ability to adjust the brightness of images of the frame marks. The camera's viewfinder contains a negative lens 1, a positive eye 2, a beam splitting plate 3, an opaque frame 4 with transparent M marks and a spherical mirror 5. The beam splitting plate 3 is located at an angle of 45 ° to the optical axis of the viewfinder. Frame 4 is installed along the rays of light that have passed through the lens 1 and are reflected from the beam-splitting plate 3. The spherical mirror 5 is located along the rays of the light, having passed the transparent marks M of the frame 4 and the beam-splitting plate 3. The viewfinder additionally contains a mirror 6 mounted with independent rotation around the parallel and perpendicular frame of the G and B axes. 1 C.p. f-ly, 1 ill.
Description
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Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU884363384A SU1569791A1 (en) | 1988-01-11 | 1988-01-11 | Photographic apparatus optical view finder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU884363384A SU1569791A1 (en) | 1988-01-11 | 1988-01-11 | Photographic apparatus optical view finder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1569791A1 true SU1569791A1 (en) | 1990-06-07 |
Family
ID=21349614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU884363384A SU1569791A1 (en) | 1988-01-11 | 1988-01-11 | Photographic apparatus optical view finder |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1569791A1 (en) |
-
1988
- 1988-01-11 SU SU884363384A patent/SU1569791A1/en active
Non-Patent Citations (1)
| Title |
|---|
| За вка DE № 3324223, кл. G 03 В 13/08, опублик. 1985. Патент US № 4527875, кл. 354 - 225, опублик. 1985. * |
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