DE619948C - Condenser system - Google Patents

Condenser system

Info

Publication number
DE619948C
DE619948C DEJ48542D DEJ0048542D DE619948C DE 619948 C DE619948 C DE 619948C DE J48542 D DEJ48542 D DE J48542D DE J0048542 D DEJ0048542 D DE J0048542D DE 619948 C DE619948 C DE 619948C
Authority
DE
Germany
Prior art keywords
condenser
projectors
light
image window
larger
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
DEJ48542D
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
Publication date
Priority to DEJ48542D priority Critical patent/DE619948C/en
Application granted granted Critical
Publication of DE619948C publication Critical patent/DE619948C/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
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/208—Homogenising, shaping of the illumination light

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)

Description

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

GEDRUCKT IN J)ER REtCHSbnüCKEKElPRINTED IN J) HE RETCHSBNÜCKEl

Claims (1)

Patentanspruch:Claim: Kondensorsystem für zwei Durchlichtbildwerfer, die vor jedem Bildfenster eine feststehende, dem Bildformat angepaßte Kondensorlinse und außerdem einen weiteren gemeinsamen Kondensorteil aufweisen, dessen Stellung sich so verändern läßt, daß er das von einer gemeinschaftlichen Lichtquelle kommende Lichtbündel wahlweise dem einen oder dem anderen Bildfenster der beiden Bildwerfer zuleitet, dadurch gekennzeichnet, daß in dem einen Beleuchtungsstrahlengang der Abstand zwischen der feststehenden Kondensorlinse und dem einschaltbaren Kondensorteil größer -ist als in dem anderen, so daß sich infolge divergenten Verlaufes des Beleuchtungslichtbündels zwischen den an-. gegebenen beiden Kondensorteilen T>ei dem einen Bildwerfer ein größeres Bildfeld ausleuchten läßt als bei dem anderen.Condenser system for two transmitted light projectors, one in front of each image window fixed condenser lens adapted to the image format and also a have another common condenser part, the position of which can be changed so that it is that of a common Light bundles coming from the light source can be fed to one or the other image window of the two projectors, characterized in that the distance between the fixed condenser lens in the one illumination beam path and the switchable capacitor part is larger than in the other, so that due to the divergent course of the illuminating light bundle between the an-. Given the two condenser parts T> one projector has a larger field of view than with the other.
DEJ48542D Condenser system Expired DE619948C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEJ48542D DE619948C (en) Condenser system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEJ48542D DE619948C (en) Condenser system

Publications (1)

Publication Number Publication Date
DE619948C true DE619948C (en) 1935-10-10

Family

ID=7206571

Family Applications (1)

Application Number Title Priority Date Filing Date
DEJ48542D Expired DE619948C (en) Condenser system

Country Status (1)

Country Link
DE (1) DE619948C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1020197B (en) * 1955-01-10 1957-11-28 Zeiss Ikon Ag Device for projecting still images
DE1080797B (en) * 1956-02-15 1960-04-28 Felix Schwarzmann Projector
DE974125C (en) * 1950-10-31 1961-01-12 Microdoc Soc Projection apparatus, in particular micro-readers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE974125C (en) * 1950-10-31 1961-01-12 Microdoc Soc Projection apparatus, in particular micro-readers
DE1020197B (en) * 1955-01-10 1957-11-28 Zeiss Ikon Ag Device for projecting still images
DE1080797B (en) * 1956-02-15 1960-04-28 Felix Schwarzmann Projector

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