DE29716590U1 - Elektrische Glühlampe zur Projektion von transparenten Bildvorlagen (Dias) mit optischen Projektionssystemen - Google Patents

Elektrische Glühlampe zur Projektion von transparenten Bildvorlagen (Dias) mit optischen Projektionssystemen

Info

Publication number
DE29716590U1
DE29716590U1 DE29716590U DE29716590U DE29716590U1 DE 29716590 U1 DE29716590 U1 DE 29716590U1 DE 29716590 U DE29716590 U DE 29716590U DE 29716590 U DE29716590 U DE 29716590U DE 29716590 U1 DE29716590 U1 DE 29716590U1
Authority
DE
Germany
Prior art keywords
projection
slides
light bulb
electric light
transparent images
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 - Lifetime
Application number
DE29716590U
Other languages
English (en)
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 DE29716590U priority Critical patent/DE29716590U1/de
Publication of DE29716590U1 publication Critical patent/DE29716590U1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K7/00—Lamps for purposes other than general lighting
    • H01K7/02—Lamps for purposes other than general lighting for producing a narrow beam of light; for approximating a point-like source of light, e.g. for searchlight, for cinematographic projector
    • 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
    • G03B21/2006—Lamp housings characterised by the light source
    • G03B21/202—Incandescent light sources
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/02—Incandescent bodies
    • H01K1/14—Incandescent bodies characterised by the shape

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
DE29716590U 1997-09-16 1997-09-16 Elektrische Glühlampe zur Projektion von transparenten Bildvorlagen (Dias) mit optischen Projektionssystemen Expired - Lifetime DE29716590U1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE29716590U DE29716590U1 (de) 1997-09-16 1997-09-16 Elektrische Glühlampe zur Projektion von transparenten Bildvorlagen (Dias) mit optischen Projektionssystemen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE29716590U DE29716590U1 (de) 1997-09-16 1997-09-16 Elektrische Glühlampe zur Projektion von transparenten Bildvorlagen (Dias) mit optischen Projektionssystemen

Publications (1)

Publication Number Publication Date
DE29716590U1 true DE29716590U1 (de) 1998-01-15

Family

ID=8046042

Family Applications (1)

Application Number Title Priority Date Filing Date
DE29716590U Expired - Lifetime DE29716590U1 (de) 1997-09-16 1997-09-16 Elektrische Glühlampe zur Projektion von transparenten Bildvorlagen (Dias) mit optischen Projektionssystemen

Country Status (1)

Country Link
DE (1) DE29716590U1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2428878A (en) * 2005-07-25 2007-02-07 Gen Electric Light source for high efficiency illumination systems

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2428878A (en) * 2005-07-25 2007-02-07 Gen Electric Light source for high efficiency illumination systems
WO2007015737A1 (en) * 2005-07-25 2007-02-08 General Electric Company Light source for high efficiency illumination systems

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 19980226

R156 Lapse of ip right after 3 years

Effective date: 20010601