DE414400C - Photometer head - Google Patents

Photometer head

Info

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
Application number
DEO14026D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DEO14026D priority Critical patent/DE414400C/en
Application granted granted Critical
Publication of DE414400C publication Critical patent/DE414400C/en
Expired legal-status Critical Current

Links

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)

PATENTANSPRUCH: Photometerkopf mit vier paarweise parallelen Spiegeln, von denen der eine so gestaltet und angeordnet ist, daß ihn beide Strahlenbündel treffen, wobei die eine Kante des nicht den ganzen Spiegel ausfüllenden Spiegelbelages die Trennungslinie der Teile des Gesichtsfeldes bildet, dadurch gekennzeichnet, daß in den Strahlengang eine unbelegte Glasplatte (3) auf der Seite des Spiegelsystems eingeschaltet ist, auf welcher der unbelegte Teil (ia) des mittleren Spiegels (i) nicht wirksam ist. Claim: photometer head with four pairs of parallel mirrors, one of which is designed and arranged in such a way that both beams hit it, one edge of the mirror covering not filling the whole mirror forming the dividing line of the parts of the field of view, characterized in that in the Beam path an unoccupied glass plate (3) is switched on on the side of the mirror system on which the unoccupied part (ia) of the middle mirror (i) is not effective.
DEO14026D 1924-01-22 1924-01-22 Photometer head Expired DE414400C (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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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