Classifications

• • G—PHYSICS
  • G02—OPTICS
  • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
  • G02B3/00—Simple or compound lenses
  • G02B3/02—Simple or compound lenses with non-spherical faces
  • G02B3/08—Simple or compound lenses with non-spherical faces with discontinuous faces, e.g. Fresnel lens
• • G—PHYSICS
  • G02—OPTICS
  • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
  • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
  • G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
  • G02B19/0028—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed refractive and reflective surfaces, e.g. non-imaging catadioptric systems
• • G—PHYSICS
  • G02—OPTICS
  • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
  • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
  • G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
  • G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source
• • 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
  • G03B23/00—Devices for changing pictures in viewing apparatus or projectors
  • G03B23/02—Devices for changing pictures in viewing apparatus or projectors in which a picture is removed from a stock and returned to the same stock or another one; Magazines therefor
  • G03B23/04—Devices for changing pictures in viewing apparatus or projectors in which a picture is removed from a stock and returned to the same stock or another one; Magazines therefor with linear movement
  • G03B23/044—Devices for changing pictures in viewing apparatus or projectors in which a picture is removed from a stock and returned to the same stock or another one; Magazines therefor with linear movement whereby the picture is returned to the same stock
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10S353/00—Optics: image projectors
  • Y10S353/01—Slides stacked with surface to surface contact

Landscapes

• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Optics & Photonics (AREA)
• Projection Apparatus (AREA)
• Overhead Projectors And Projection Screens (AREA)
• Transmission Devices (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=24743251

Family Applications (2)

Family Applications Before (1)

Country Status (8)

Families Citing this family (2)

Family Cites Families (2)

• 1967
  • 1967-11-15 US US683262A patent/US3490839A/en not_active Expired - Lifetime
• 1968
  • 1968-11-04 DE DE19681807586 patent/DE1807586B2/de not_active Withdrawn
  • 1968-11-04 DE DE1817835A patent/DE1817835C3/de not_active Expired
  • 1968-11-05 SE SE7116979A patent/SE372349B/xx unknown
  • 1968-11-05 SE SE14963/68A patent/SE346391B/xx unknown
  • 1968-11-13 NL NL6816130A patent/NL6816130A/xx not_active Application Discontinuation
  • 1968-11-14 GB GB54142/68A patent/GB1253851A/en not_active Expired
  • 1968-11-14 GB GB37476/71A patent/GB1254990A/en not_active Expired
  • 1968-11-14 FR FR1591790D patent/FR1591790A/fr not_active Expired
  • 1968-11-14 CA CA035211A patent/CA917970A/en not_active Expired
• 1971
  • 1971-07-26 JP JP46055286A patent/JPS4820141B1/ja active Pending
• 1978
  • 1978-05-17 NL NL7805299A patent/NL7805299A/xx active Search and Examination

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