DE293141C - - Google Patents
Info
- Publication number
- DE293141C DE293141C DENDAT293141D DE293141DA DE293141C DE 293141 C DE293141 C DE 293141C DE NDAT293141 D DENDAT293141 D DE NDAT293141D DE 293141D A DE293141D A DE 293141DA DE 293141 C DE293141 C DE 293141C
- Authority
- DE
- Germany
- Prior art keywords
- lenses
- lens
- same
- individual
- color filter
- 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
- 150000001875 compounds Chemical class 0.000 claims 1
- 230000003287 optical Effects 0.000 claims 1
- 230000000717 retained Effects 0.000 claims 1
- 240000004322 Lens culinaris Species 0.000 description 1
- 235000014647 Lens culinaris subsp culinaris Nutrition 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Color Television Image Signal Generators (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Die Erfindung zeigt die Verwendung von Farbennlterlinsen in solchen photographischen Objektiven (Anastigmaten), welche aus gänzlich oder teilweise unverkitteten Linsen bestehen. The invention shows the use of color filter lenses in such photographic Lenses (anastigmats), which consist of completely or partially unsealed lenses.
Aus diesen Objektiven entnimmt man eine der weißen Linsen und ersetzt diese durch eine Farbenfilterlinse von gleicher Konstruktion, gleichem Brechungsexponenten, gleicherTake one of the white lenses out of these lenses and replace it with a color filter lens of the same construction, the same refraction exponent, the same
ίο Dicke und Brennweite, so daß die anastigmatische Wirkung bzw. die Korrektion des Objektivs nicht wesentlich beeinflußt wird. Es ist dabei zu beachten, daß die Konvexfläche des Filters stets der vorderen oder hinterenίο thickness and focal length so that the anastigmatic Effect or the correction of the lens is not significantly influenced. It should be noted that the convex surface of the filter always the front or rear
!5 Öffnung, aber niemals der Blende zugekehrt wird. Die Farbenfilterlinse wird auf folgende Weise hergestellt: Das Filterglas wird so durch Schliff (eventuell Vorpressen und Nachpolieren) zugearbeitet, daß die konkave Fläche mit der konvexen Fläche der Objektivlinse gleichen Radius hat, so daß sie genau aufeinanderpassen und miteinander verkittet werden können. Hierdurch ist ein Luftraum zwischen der Linse und dem Filter vollkommen beseitigt, und letzterer steht genau senkrecht zur Linsenachse.! 5 opening, but never facing the aperture will. The color filter lens is made in the following way: The filter glass is so through Grind (possibly pre-pressing and polishing) added that the concave surface with the convex surface of the objective lens has the same radius, so that they fit together exactly and can be cemented together. This creates an air space between the lens and the filter are completely eliminated, and the latter is exactly perpendicular to the Lens axis.
Fig. ι stellt einen yierlinsigen Anastigmaten dar, der aus zwei symmetrischen Hälften besteht, so daß die Linsen I1 und I1 gleich gebaut sind. Jede dieser Linsen kann gegen die Farbenfilterlinse L1 ausgetauscht werden.Fig. Ι shows a yierlinsigen anastigmate, which consists of two symmetrical halves, so that the lenses I 1 and I 1 are constructed identically. Each of these lenses can be exchanged for the color filter lens L 1 .
Eine ähnliche Bauart ist in Fig. 2 veranschaulicht. A similar design is illustrated in FIG.
Fig. 3 zeigt einen sechslinsigen Anastigmaten, welcher aus einzelnen und zusammengesetzten Linsen besteht. Die Einzellinsen sind gegen Farbenfilterlinsen auswechselbar.Fig. 3 shows a six-lens anastigmate, which consists of individual and composite Lentils. The individual lenses can be exchanged for color filter lenses.
Claims (1)
Publications (1)
Publication Number | Publication Date |
---|---|
DE293141C true DE293141C (en) |
Family
ID=547835
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT293141D Active DE293141C (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE293141C (en) |
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0
- DE DENDAT293141D patent/DE293141C/de active Active
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