DE178999C - - Google Patents
Info
- Publication number
- DE178999C DE178999C DENDAT178999D DE178999DA DE178999C DE 178999 C DE178999 C DE 178999C DE NDAT178999 D DENDAT178999 D DE NDAT178999D DE 178999D A DE178999D A DE 178999DA DE 178999 C DE178999 C DE 178999C
- Authority
- DE
- Germany
- Prior art keywords
- mirror
- objective
- lens
- behind
- camera
- 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
- 230000035945 sensitivity Effects 0.000 claims 1
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
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- 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
- G02B27/141—Beam splitting or combining systems operating by reflection only using dichroic mirrors
-
- 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
-
- 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
- G02B27/144—Beam splitting or combining systems operating by reflection only using partially transparent surfaces without spectral selectivity
-
- 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
- G02B27/145—Beam splitting or combining systems operating by reflection only having sequential partially reflecting surfaces
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Color Television Image Signal Generators (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
PATENTSCHRIFTPATENT LETTERING
- JVl 178999 -KLASSE 57α. GRUPPE - JVl 178999 - CLASS 57α. GROUP
CAMILLE NACHETiN PARIS.CAMILLE NACHETiN PARIS.
Es sind bereits Kameras für Dreifarbenphotographie bekannt, bei welchen die drei Monochromnegative gleichzeitig mittels eines Objektivs gewonnen werden. Bei diesen Kameras wird der Strahlenkegel durch hintereinander angeordnete, gegen die Objektivachse geneigte halb durchlässige Spiegel geteilt. Die Kamera gemäß vorliegender Erfindung unterscheidet sich von den bekanntenThere are already known cameras for three-color photography in which the three Monochrome negatives can be obtained simultaneously by means of an objective. With these Cameras, the beam cone is arranged one behind the other, against the lens axis inclined semi-transparent mirror divided. The camera according to the present invention differs from the known
ίο Apparaten dadurch, daß der erste Spiegel für Licht undurchlässig ist, und daß seine Oberfläche kleiner als der Querschnitt des Strahlenkegels ist. Durch diesen Spiegel wird der mittlere Teil des- Strahlenkegels seitlich geworfen, während zur Teilung des um den ersten Spiegel herumgehenden Teiles des Strahlenkegels ein anderer halbdurchlässiger, in gebräuchlicher Weise in der Objektivachse hinter dem ersten Spiegel angeordneter Spiegel vorgesehen ist. Der erste lichtundurchlässige Spiegel kann in der Kamera entweder zwischen den 'beiden Linsen des Objektivs liegen, in welchem Falle eine seitlich angeordnete zweite Hinterlinse vorgesehen sein muß, oder er kann hinter dem Objektiv angeordnet sein.ίο apparatus by having the first mirror is opaque to light, and that its surface is smaller than the cross-section of the Cone of rays is. The middle part of the cone of rays becomes through this mirror thrown sideways while dividing the part going around the first mirror of the beam cone another semitransparent, in the usual way in the objective axis is provided behind the first mirror arranged mirror. The first opaque mirror can be in the camera either between the 'two lenses of the objective, in which case one laterally arranged second rear lens must be provided, or it can be behind the Be arranged objective.
In der Zeichnung ist Fig. 1 ein Horizontalschnitt in Höhe der Objektivachse durch ,eine Kamera der ersten Ausführungsform, während Fig. 2 schematisch die zweite Ausführungsform zeigt.In the drawing, Fig. 1 is a horizontal section at the level of the objective axis , a camera of the first embodiment, while FIG. 2 schematically shows the second embodiment shows.
Der Apparat besitzt ein gewöhnliches Objektiv a, -in dessen Mitte, ziemlich nahe an der Vorderlinse b, ein kleiner undurchsichtiger Spiegel m angebracht ist. Der Spiegel bildet mit der Objektivachse einen Winkel von 450, und seine Fläche beträgt ungefähr ein Drittel des Querschnitts des durch das Objektiv gehenden ganzen Strahlenbündels.The apparatus has an ordinary lens a, in the center of which, fairly close to the front lens b, a small opaque mirror m is attached. The mirror together with the lens axis by an angle of 45 0, and its area is about one third of the cross section of the lens passing through the whole beam.
Die auf ihn fallenden Strahlen werden abgelenkt und gehen durch eine senkrecht zur Vorderlinse b stehende Linse d in eine Kamera e, um eine in der Fpkalebene angeordnete lichtempfindliche Platte h zu belichten. Die nicht von dem Spiegel aufgefangenen, um ihn herumgehenden Strahlen gelangen durch die gewöhnliche Hinterlinse c des Objektivs. Der größte Teil der Strahlen belichtet in gerader Fortsetzung eine zweite lichtempfindliche Platte i in einer Kamera f, nachdem er durch einen durchsichtigen, spiegelnden, roten Schirm 0 gegangen ist. Der letzte Teil der Lichtstrahlen wird an dem Schirm 0 im rechten Winkel abgelenkt und belichtet eine dritte lichtempfindliche Platte j innerhalb einer dritten Kamera g. Der Schirm 0 ist in einem Kasten ρ senkrecht und zur Objektivachse unter 450 aufgestellt.The rays falling on it are deflected and pass through a lens d, which is perpendicular to the front lens b , into a camera e, in order to expose a photosensitive plate h arranged in the plane of the lens. The rays that go around it and are not intercepted by the mirror pass through the usual rear lens c of the objective. Most of the rays are exposed in a straight line to a second photosensitive plate i in a camera f after it has passed through a transparent, reflective, red screen 0. The last part of the light rays is deflected at right angles on the screen 0 and exposes a third photosensitive plate j within a third camera g. The screen 0 is set up in a box ρ perpendicular and below 45 0 to the objective axis.
Vor den Platten h und j, eventuell auch vor i, sind in bekannter Weise Lichtfilter angeordnet.Light filters are arranged in a known manner in front of the plates h and j, possibly also in front of i.
Durch vorstehende Anordnung werden die Lichtstrahlen durch das Objektiv α nach ihrer verschiedenartigen Teilung in jede der drei Kameras e, j und g geworfen. Es muß bei dieser Verteilung durch praktische ErfahrungAs a result of the above arrangement, the light beams are thrown through the objective α into each of the three cameras e, j and g according to their various types of division. It must be distributed through practical experience
Claims (2)
Publications (1)
Publication Number | Publication Date |
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DE178999C true DE178999C (en) |
Family
ID=443344
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DENDAT178999D Active DE178999C (en) |
Country Status (1)
Country | Link |
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DE (1) | DE178999C (en) |
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0
- DE DENDAT178999D patent/DE178999C/de active Active
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