DE426850C - Mirror for observing the subject in reflex cameras - Google Patents

Mirror for observing the subject in reflex cameras

Info

Publication number
DE426850C
DE426850C DEE32195D DEE0032195D DE426850C DE 426850 C DE426850 C DE 426850C DE E32195 D DEE32195 D DE E32195D DE E0032195 D DEE0032195 D DE E0032195D DE 426850 C DE426850 C DE 426850C
Authority
DE
Germany
Prior art keywords
mirror
observing
subject
reflex cameras
mirrors
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
DEE32195D
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.)
Ernemann Werke AG
Original Assignee
Ernemann Werke AG
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 Ernemann Werke AG filed Critical Ernemann Werke AG
Priority to DEE32195D priority Critical patent/DE426850C/en
Application granted granted Critical
Publication of DE426850C publication Critical patent/DE426850C/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B19/00—Cameras
    • G03B19/02—Still-picture cameras
    • G03B19/12—Reflex cameras with single objective and a movable reflector or a partly-transmitting mirror

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Description

Spiegel zur Beobachtung des Aufnahmeobjektes in Reflexkameras: Bei Reflexkaaneras dient zur Beobachtung des aufzunehmenden Objektes ein Spiegel, der im Augenblick der Aufnahme den Weg für die Lichtstrahlen zur Aufnahmeplatte freigibt.Mirror for observing the subject in reflex cameras: At Reflexkaaneras is used to observe the object to be recorded using a mirror, the clears the path for the light rays to the mounting plate at the moment of recording.

Diese Spiegel sind jedoch seht empfindlich gegen äußere Einflüsse, da sie aus oberflächenversilberten Glasplatten hergestellt werde. Die Oberfläche wird sehr leicht blind, so daß eine einwandfreie Bildbeobachtung nach kurzer Zeit nicht mehr möglich ist. Ganz besonders in den Tropen hat es sich herausgestellt, daß bei derartigen Kameras keine versilberten Spiegel verwendet werden können, da die Temperatureinflüsse die Spiegel binnen kurzer Zeit vollkommen verderben. Erfindungsgemäß -wird nun der Spiegel für diese Reflexkameras aus hochglanzpolierten Stahlplatten von nicht rostendem Stahl hergestellt. Es hat sich erwiesen, daß diese Spiegel vollkommen unempfindlich sind gegen äußere Einflüsse. Außerdem lassen sich derartige Spiegel leicht nachpolieren.However, these mirrors are very sensitive to external influences, because it is made from silver-plated glass plates. The surface becomes blind very easily, so that perfect image observation after a short time is no longer possible. Especially in the tropics it has been found that silver-plated mirrors cannot be used in such cameras, since the temperature influences completely spoil the mirrors within a short time. According to the invention - The mirror for these reflex cameras is now made of highly polished steel plates made of stainless steel. It has been shown that these mirrors are perfect are insensitive to external influences. Such mirrors can also be used polish slightly.

Durch die Verwendung dieser nicht rostenden Stahlspiegel ist .ein großer Fortschritt in bezug auf Reflexkameras erreicht worden.By using this stainless steel mirror is .ein great progress has been made in relation to reflex cameras.

Claims (1)

PATENTANSPRUCH: Spiegel zur Beobachtung des Aufnahmeobjektes in Reflexkameras, dadurch gekennzeichnet, daß er aus hochglanzpolierten, nicht rostenden Stahlplatten besteht.PATENT CLAIM: Mirror for observing the subject in reflex cameras, characterized in that it is made of highly polished, stainless steel plates consists.
DEE32195D 1925-03-13 1925-03-13 Mirror for observing the subject in reflex cameras Expired DE426850C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEE32195D DE426850C (en) 1925-03-13 1925-03-13 Mirror for observing the subject in reflex cameras

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEE32195D DE426850C (en) 1925-03-13 1925-03-13 Mirror for observing the subject in reflex cameras

Publications (1)

Publication Number Publication Date
DE426850C true DE426850C (en) 1926-03-18

Family

ID=7075479

Family Applications (1)

Application Number Title Priority Date Filing Date
DEE32195D Expired DE426850C (en) 1925-03-13 1925-03-13 Mirror for observing the subject in reflex cameras

Country Status (1)

Country Link
DE (1) DE426850C (en)

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