DE3323875A1 - Diaprojektor - Google Patents

Diaprojektor

Info

Publication number
DE3323875A1
DE3323875A1 DE19833323875 DE3323875A DE3323875A1 DE 3323875 A1 DE3323875 A1 DE 3323875A1 DE 19833323875 DE19833323875 DE 19833323875 DE 3323875 A DE3323875 A DE 3323875A DE 3323875 A1 DE3323875 A1 DE 3323875A1
Authority
DE
Germany
Prior art keywords
slide
slide projector
stage
lens
air
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.)
Granted
Application number
DE19833323875
Other languages
German (de)
English (en)
Other versions
DE3323875C2 (enrdf_load_stackoverflow
Inventor
Des Erfinders Auf Nennung Verzicht
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.)
GRUNWALD PROJEKTOREN AG RUGGELL LI
Original Assignee
Demolux & Co Kg 6070 Langen De GmbH
DEMOLUX
Demolux & Co Kg 6070 Langen GmbH
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 Demolux & Co Kg 6070 Langen De GmbH, DEMOLUX, Demolux & Co Kg 6070 Langen GmbH filed Critical Demolux & Co Kg 6070 Langen De GmbH
Priority to DE19833323875 priority Critical patent/DE3323875A1/de
Publication of DE3323875A1 publication Critical patent/DE3323875A1/de
Application granted granted Critical
Publication of DE3323875C2 publication Critical patent/DE3323875C2/de
Granted 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
    • G03B21/16—Cooling; Preventing overheating

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)
DE19833323875 1983-07-02 1983-07-02 Diaprojektor Granted DE3323875A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19833323875 DE3323875A1 (de) 1983-07-02 1983-07-02 Diaprojektor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19833323875 DE3323875A1 (de) 1983-07-02 1983-07-02 Diaprojektor

Publications (2)

Publication Number Publication Date
DE3323875A1 true DE3323875A1 (de) 1985-01-03
DE3323875C2 DE3323875C2 (enrdf_load_stackoverflow) 1991-05-16

Family

ID=6202979

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19833323875 Granted DE3323875A1 (de) 1983-07-02 1983-07-02 Diaprojektor

Country Status (1)

Country Link
DE (1) DE3323875A1 (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0192023A3 (en) * 1985-02-21 1986-10-08 Casio Computer Company Limited Liquid crystal projector
US4875064A (en) * 1986-08-06 1989-10-17 Casio Computer Co., Ltd. Projector apparatus with mirror means
DE8911444U1 (de) * 1989-09-26 1989-12-14 Taube, Hannelore, 5090 Leverkusen Diaprojektor-Einbauelement
EP0636865A3 (en) * 1993-07-28 1995-05-17 Jasco Corp Lamp assembly and optical analyzer using the same.

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6497489B1 (en) * 2001-08-29 2002-12-24 Benq Corporation Projector with guiding rib in vent

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB670813A (en) * 1949-10-28 1952-04-23 James Russell Kennedy Improvements in or relating to the cooling of optical projection apparatus
DE1097171B (de) * 1956-05-15 1961-01-12 Erich Zillmer Bildwerfer mit eingebautem Turbo-Geblaese
DE6753283U (de) * 1968-09-05 1969-04-30 Rollei Werke Franke Heidecke Magazin-standbildwerfer mit kuehlgeblaese
DE1951701A1 (de) * 1969-06-25 1971-01-21 Strebelwerk Ag Waermeaustauscher in Gliederbauweise fuer Waermeuebertragung zwischen zwei Fluessigkeiten,insbesondere als Verbrauchswarmwasserbereiter
DE2743757A1 (de) * 1977-09-29 1979-04-12 Agfa Gevaert Ag Diaprojektor
DE8224767U1 (de) * 1982-09-02 1983-02-10 Demolux Gmbh & Co Kg, 6070 Langen Overhead-projektor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB670813A (en) * 1949-10-28 1952-04-23 James Russell Kennedy Improvements in or relating to the cooling of optical projection apparatus
DE1097171B (de) * 1956-05-15 1961-01-12 Erich Zillmer Bildwerfer mit eingebautem Turbo-Geblaese
DE6753283U (de) * 1968-09-05 1969-04-30 Rollei Werke Franke Heidecke Magazin-standbildwerfer mit kuehlgeblaese
DE1951701A1 (de) * 1969-06-25 1971-01-21 Strebelwerk Ag Waermeaustauscher in Gliederbauweise fuer Waermeuebertragung zwischen zwei Fluessigkeiten,insbesondere als Verbrauchswarmwasserbereiter
DE2743757A1 (de) * 1977-09-29 1979-04-12 Agfa Gevaert Ag Diaprojektor
DE8224767U1 (de) * 1982-09-02 1983-02-10 Demolux Gmbh & Co Kg, 6070 Langen Overhead-projektor

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0192023A3 (en) * 1985-02-21 1986-10-08 Casio Computer Company Limited Liquid crystal projector
US4875064A (en) * 1986-08-06 1989-10-17 Casio Computer Co., Ltd. Projector apparatus with mirror means
US4941732A (en) * 1986-08-06 1990-07-17 Casio Computer Co., Ltd. Transmission type projection screen
DE8911444U1 (de) * 1989-09-26 1989-12-14 Taube, Hannelore, 5090 Leverkusen Diaprojektor-Einbauelement
EP0636865A3 (en) * 1993-07-28 1995-05-17 Jasco Corp Lamp assembly and optical analyzer using the same.
US5568007A (en) * 1993-07-28 1996-10-22 Jasco Corporation Lamp unit and optical analyzer using the same

Also Published As

Publication number Publication date
DE3323875C2 (enrdf_load_stackoverflow) 1991-05-16

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: GRUNWALD PROJEKTOREN AG, RUGGELL, LI

8328 Change in the person/name/address of the agent

Free format text: JUNIUS, W., DIPL.-PHYS. DR., PAT.-ANW., 30519 HANNOVER

8339 Ceased/non-payment of the annual fee