DE195467C - - Google Patents
Info
- Publication number
- DE195467C DE195467C DENDAT195467D DE195467DA DE195467C DE 195467 C DE195467 C DE 195467C DE NDAT195467 D DENDAT195467 D DE NDAT195467D DE 195467D A DE195467D A DE 195467DA DE 195467 C DE195467 C DE 195467C
- Authority
- DE
- Germany
- Prior art keywords
- prisms
- roof edge
- entry
- exit surfaces
- exit
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
- 230000000295 complement Effects 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/04—Prisms
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Aus drei Prismen bestehende Prismenum-Prismatic envelopes consisting of three prisms
kehrsysteme mit parallel gegenüberliegenden Ein- und Austrittsflächen und fünfmaliger Ablenkung, darunter einmal' an einer Dachkante, sind bekannt.sweeping systems with parallel opposite entrance and exit areas and five Distractions, including once 'at the edge of a roof, are known.
Gegenstand der Erfindung betrifft ein derartiges Prismenumkehrsystem, bei dem der eintretende Strahl derart gebrochen wird, daß der austretende Strahl in der Richtung des ίο eintretenden verläuft, wodurch sich das Umkehrsystem besonders zur Herstellung wenig Raum beanspruchender Prismenfernrohre eignet.The invention relates to such a thing Prism erecting system in which the incoming beam is refracted in such a way that the exiting beam is in the direction of the ίο occurring runs, which means that the reversing system is particularly useful for producing little Space-consuming prismatic telescopes are suitable.
Das System ist dadurch gekennzeichnet, daß die Ein- und Austrittsprismen mit ihrer reflektierenden Ein- bzw. Austrittsfläche und den parallelen Ein- und Austrittsöffnungen Winkel von 221J2 0 oder nahezu 221J2 0 bilden, und zwar so, daß beide Winkel sich zu 45 ° ergänzen.The system is characterized in that the entry and exit prisms with their reflecting entry and exit surfaces and the parallel entry and exit openings form angles of 22 1 J 2 0 or almost 22 1 J 2 0 , in such a way that both angles complement each other to 45 °.
In der Zeichnung ist ein derartiges Umkehrsystem dargestellt. Der eintretende Strahl wird an der versilberten Fläche A, welche zwecks Bildumkehrung mit einer Dachkante versehen ist, nach B gebrochen, tritt alsdann in das zweite Prisma und gelangt durch Totalreflexion nach C in das dritte Prisma, von wo er nach Reflexion an der versilberten Fläche E in der Verlängerung des eintretenden Strahls austritt. Die Dachkante kann natürlich auch an einer der anderen Prismen vorgesehen sein, auch können die Prismen durch Luftabstand getrennt oder miteinander verkittet sein.Such a reversing system is shown in the drawing. The incoming beam is refracted to B on the silver-plated surface A, which is provided with a roof edge for the purpose of inverting the image, then enters the second prism and through total reflection to C, reaches the third prism, from where it after reflection on the silver-plated surface E. emerges in the extension of the entering beam. The roof edge can of course also be provided on one of the other prisms; the prisms can also be separated by air gap or cemented to one another.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE195467C true DE195467C (en) |
Family
ID=458524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT195467D Active DE195467C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE195467C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3484149A (en) * | 1967-04-13 | 1969-12-16 | Leitz Ernst Gmbh | Center focusing prism binocular and reticle |
| US3976368A (en) * | 1973-12-03 | 1976-08-24 | Polaroid Corporation | Special optical element for camera to microscope adaptor |
-
0
- DE DENDAT195467D patent/DE195467C/de active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3484149A (en) * | 1967-04-13 | 1969-12-16 | Leitz Ernst Gmbh | Center focusing prism binocular and reticle |
| US3976368A (en) * | 1973-12-03 | 1976-08-24 | Polaroid Corporation | Special optical element for camera to microscope adaptor |
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