DE414400C - Photometer head - Google Patents
Photometer headInfo
- Publication number
- DE414400C DE414400C DEO14026D DEO0014026D DE414400C DE 414400 C DE414400 C DE 414400C DE O14026 D DEO14026 D DE O14026D DE O0014026 D DEO0014026 D DE O0014026D DE 414400 C DE414400 C DE 414400C
- Authority
- DE
- Germany
- Prior art keywords
- mirror
- photometer head
- unoccupied
- photometer
- beam path
- 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
- 239000011521 glass Substances 0.000 claims description 5
- 230000003287 optical effect Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
- G01J1/12—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using wholly visual means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Optical Elements Other Than Lenses (AREA)
Description
Photometerkopf. Die Erfindung bezieht sich auf einen Photometerkopf, dessen einer Spiegel so gestaltet und angeordnet ist, daB ihn beide Strahlenbündel treffen, wobei die Kanten des nicht den ganzen Spiegel ausfüllenden Spiegelbelages die Trennungslinie der Teile des Gesichtsfeldes bilden.Photometer head. The invention relates to a photometer head, one mirror of which is designed and arranged in such a way that it both bundles of rays meet, the edges of the mirror covering not filling the entire mirror form the dividing line between the parts of the visual field.
Das Wesen der Erfindung besteht darin, daB in dem Strahlengang ein unbelegtes Glas auf der Seite des Spiegelsystems eingeschaltet ist, auf welcher der unbelegte Teil des mittleren Spiegels .nicht wirksam ist. Hierdurch wird erreicht, daß der Photometerkopf optisch vollkommen symmetrisch wird, was bei anderen gleichartigen Anordnungen bisher noch nicht erreicht werden konnte.The essence of the invention is that in the beam path a blank glass turned on on the side of the mirror system is, on which the unoccupied part of the center mirror is not effective. Through this it is achieved that the photometer head is optically perfectly symmetrical, which is at other similar arrangements could not yet be achieved.
In der Zeichnung ist ein Photometerkopf gemäß der Erfindung in einer beispielsweisen Ausführung schematisch dargestellt, und zwar zeigt: Abb. i eine Draufsicht auf den inneren Glasspiegel, bei dem der Belag zur Hälfte entfernt ist.In the drawing, a photometer head according to the invention is in one exemplary embodiment shown schematically, namely shows: Fig. i a Top view of the inner glass mirror with half of the covering removed.
Abb. 2 ist ein Schnitt durch alle optischen Teile des Spiegelsystems eines Photometerkopfes gemäß der Erfindung.Fig. 2 is a section through all of the optical parts of the mirror system a photometer head according to the invention.
Das Licht geht bei den bekannten Photometerköpfen der in Betracht kommenden Art auf der einen Seite von dem Spiegel q. zum Spiegel s und durch die unbelegte Hälfte ia des Spiegels i, und auf der anderen Seite über den Spiegel 2 zu der belegten Hälfte ib des Spiegels i. Um nun gleichartige optische Verhältnisse zu schaffen, ist auf der Seite der Spiegel i und 2 eine zu dem letzteren unter dem gleichen Winkel wie .der Teil ia zum Spiegel q. geneigte unbelegte Glasplatte 3 in den Strahlengang eingeschaltet. Auf diese Weise haben die Lichtstrahlen auf beiden Seiten im Photometerkopf dieselbe Anzahl von Glasschichten zu durchlaufen bei gleicher Anzahl von Reflexionen an den spiegelnden Flächen.The light is taken into account in the known photometer heads coming type on one side of the mirror q. to the mirror s and through the unoccupied half ia of mirror i, and on the other side over mirror 2 to the occupied half ib of the mirror i. Now about similar optical conditions to create is on the side of the mirrors i and 2 one to the latter under the same angle as the part ia to the mirror q. inclined blank glass plate 3 switched into the beam path. That way, the rays of light have on both Pages in the photometer head to go through the same number of glass layers with the same Number of reflections on the reflective surfaces.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEO14026D DE414400C (en) | 1924-01-22 | 1924-01-22 | Photometer head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEO14026D DE414400C (en) | 1924-01-22 | 1924-01-22 | Photometer head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE414400C true DE414400C (en) | 1925-06-05 |
Family
ID=7353557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEO14026D Expired DE414400C (en) | 1924-01-22 | 1924-01-22 | Photometer head |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE414400C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0059025A1 (en) * | 1981-02-24 | 1982-09-01 | The Commonwealth Of Australia | An optical system for a spectrophotometer |
-
1924
- 1924-01-22 DE DEO14026D patent/DE414400C/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0059025A1 (en) * | 1981-02-24 | 1982-09-01 | The Commonwealth Of Australia | An optical system for a spectrophotometer |
| US4478513A (en) * | 1981-02-24 | 1984-10-23 | Commonwealth Of Australia | Optical system for a spectrophotometer |
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