DE421949C - Camera for making multi-color photographs - Google Patents
Camera for making multi-color photographsInfo
- Publication number
- DE421949C DE421949C DER59522D DER0059522D DE421949C DE 421949 C DE421949 C DE 421949C DE R59522 D DER59522 D DE R59522D DE R0059522 D DER0059522 D DE R0059522D DE 421949 C DE421949 C DE 421949C
- Authority
- DE
- Germany
- Prior art keywords
- camera
- mirrors
- color photographs
- making multi
- images
- 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.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/10—Beam splitting or combining systems
- G02B27/1006—Beam splitting or combining systems for splitting or combining different wavelengths
- G02B27/1013—Beam splitting or combining systems for splitting or combining different wavelengths for colour or multispectral image sensors, e.g. splitting an image into monochromatic image components on respective sensors
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/10—Beam splitting or combining systems
- G02B27/14—Beam splitting or combining systems operating by reflection only
- G02B27/143—Beam splitting or combining systems operating by reflection only using macroscopically faceted or segmented reflective surfaces
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Spectrometry And Color Measurement (AREA)
Description
Kamera zur Herstellung von Mehrfarbenaufnahmen. Die im folgenden beschriebene Erfindung hat den Zweck, einen Dreifarbenapparat zu schaffen, welcher in ein und demselben Moment drei einander streng-kongruente Bilder auf ein und derselben Ebene derart entwirft, daß die Vorbedingung für Kinoaufnahmen erfüllt wird. Dabei liegt die Annahme zugrunde, daß eine mathematische Kongruenz der Bilder ein gemeinsames Projektionszentrum zur Voraussetzung hat, und daB die drei Bilder von ein und demselben Objektiv entworfen werden müssen.Camera for the production of multicolor recordings. The one described below The invention has the purpose of creating a three-color apparatus, which in one and At the same moment three strictly congruent images on one and the same level designs to meet the requirement for theatrical recordings. It lies it is based on the assumption that a mathematical congruence of the images is a common one Projection center as a prerequisite, and that the three images of one and the same Must be designed objectively.
Die bekannten Einrichtungen dieser Art nehmen infolge der Anwendung von Prismen und Rasterspiegeln, von denen ein jeder Spiegel die ganze -Objektivöffnung -beherrscht, einen verhältnismäßig großen Raum zwischen Objektiv und Bildebene ein, so daß nur zum Bildformat lange Objektivbrennweiten'in Anwendung kommen können. Die Lichtwege durch Glasprismen aber sind geeignet, die Güte der Bilder in Frage zu stellen.The known devices of this type take due to the application of prisms and raster mirrors, each of which mirrors the whole lens aperture - mastered a relatively large space between the lens and the image plane, so that long lens focal lengths can only be used for the image format. The light paths through glass prisms, however, are suitable to question the quality of the images to deliver.
Diese Nachteile werden durch die Erfindung vermieden. Sie besteht darin, daß hinter dem Objektiv zwei Dreispiegelsysteme angebracht sind, von denen das eine das andere in gegebenem Abstand umhüllt, und von denen die drei Spiegel des inneren Systems ein rechtwinkliges, unter ¢5° zur Kante abgestumpftes gerades Prisma bilden. In der Abbildung ist die Erfinduhg dargestellt. Die drei Spiegel ,a des Kernes und die der parallelen Umhüllung b sind auf einer gemeinsamen Grundplatte angebracht, auf welcher zur Regelung- der Entfernung von der Umhüllung b der Kern a senkrecht zur Prismenkante in Richtung nach dem Objektiv verschiebbar ist. Der in a gezeichnete `Kreis stellt die Objektivöffnung dar; die Spitze des Stumpfes liegt in der Objektivachse.These disadvantages are avoided by the invention. It consists in the fact that two three-mirror systems are attached behind the lens, one of which surrounds the other at a given distance, and of which the three mirrors of the inner system form a right-angled straight prism truncated at ¢ 5 ° to the edge. In the figure the invention is shown. The three mirrors, a of the core and that of the parallel envelope b, are mounted on a common base plate, on which the core a can be displaced perpendicular to the prism edge in the direction towards the objective in order to regulate the distance from the envelope b. The circle drawn in a represents the lens aperture; the tip of the stump lies in the objective axis.
Zur Herbeiführung gleicher Deckkraft für die drei Farbenbelichtungen können die Spiegel noch abgedeckt werden, wenn die schon vorhandene Ungleichheit des Flächeninhalts des Dreiecksspiegels zu dem der beiden Vierecksspiegel a n sich nicht hinreicht.To achieve the same opacity for the three color exposures the mirrors can still be covered if the already existing inequality of the area of the triangular mirror to that of the two square mirrors a n themselves not enough.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DER59522D DE421949C (en) | Camera for making multi-color photographs |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DER59522D DE421949C (en) | Camera for making multi-color photographs |
Publications (1)
Publication Number | Publication Date |
---|---|
DE421949C true DE421949C (en) | 1925-11-24 |
Family
ID=7411102
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DER59522D Expired DE421949C (en) | Camera for making multi-color photographs |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE421949C (en) |
-
0
- DE DER59522D patent/DE421949C/en not_active Expired
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