GB895103A - Improvements in or relating to optical slide projectors and optical slide viewers - Google Patents

Improvements in or relating to optical slide projectors and optical slide viewers

Info

Publication number
GB895103A
GB895103A GB35784/58A GB3578458A GB895103A GB 895103 A GB895103 A GB 895103A GB 35784/58 A GB35784/58 A GB 35784/58A GB 3578458 A GB3578458 A GB 3578458A GB 895103 A GB895103 A GB 895103A
Authority
GB
United Kingdom
Prior art keywords
lens
gate member
slide
movable gate
link
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
GB35784/58A
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.)
Kodak Ltd
Original Assignee
Kodak Ltd
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 Kodak Ltd filed Critical Kodak Ltd
Priority to GB35784/58A priority Critical patent/GB895103A/en
Publication of GB895103A publication Critical patent/GB895103A/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
    • G03B21/001—Slide projectors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)
  • Transforming Electric Information Into Light Information (AREA)

Abstract

895,103. Optical slide projectors; lens mounts. KODAK Ltd. (Kodak A.G., and Missler, S.) Oct. 26, 1959 [Nov. 7, 1958], No. 35784/58. Class 97(1). An optical slide projector or viewer comprises a projection lens, a fixed gate member and an apertured plate forming a movable gate member between which a slide is resiliently clamped and a link or links acting on the movable gate member and lens so that the movement imparted to the movable gate member is transmitted to the lens to maintain constant the distance between the transparency plane and the lens for any pre-set position of the lens irrespective of the slide thickness. The slide projector shown has a fixed gate member 3 and a movable gate member 15 between which the slide 18 is inserted. The movable gate member 15 has lugs 19 to which links 21 are pivoted, the other end of each link having an open ended slot 22 embracing a fixed pin 23. Each link has a cam surface 24 engaging the flange 10 of a lens support 5 which is spring loaded at 9 and carries a screw threaded lens mount 12. When a slide of different thickness from that shown at 18 is inserted, the gate member 15 via the links 21 causes the lens support 5 to move axially so as to maintain constant the distance between the transparency plane and the lens.
GB35784/58A 1958-11-07 1958-11-07 Improvements in or relating to optical slide projectors and optical slide viewers Expired GB895103A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB35784/58A GB895103A (en) 1958-11-07 1958-11-07 Improvements in or relating to optical slide projectors and optical slide viewers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB35784/58A GB895103A (en) 1958-11-07 1958-11-07 Improvements in or relating to optical slide projectors and optical slide viewers

Publications (1)

Publication Number Publication Date
GB895103A true GB895103A (en) 1962-05-02

Family

ID=10381520

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35784/58A Expired GB895103A (en) 1958-11-07 1958-11-07 Improvements in or relating to optical slide projectors and optical slide viewers

Country Status (1)

Country Link
GB (1) GB895103A (en)

Similar Documents

Publication Publication Date Title
GB559472A (en) Improvements in or relating to a transparency mount
GB895103A (en) Improvements in or relating to optical slide projectors and optical slide viewers
GB1077345A (en) Slide projector
US2953966A (en) Slide changer for picture projection apparatus
GB1330736A (en) Device for locating and or holding a film
GB1031816A (en) Slide holder for use in optical projection
GB622816A (en) Improvements in and relating to lens mountings for cameras and other apparatus
US3150579A (en) Camera bright-frame viewfinder with coupled rangefinder
GB859126A (en) Improvements in and relating to variable aperture masking plate assemblies for optical projectors or cameras
GB895856A (en) Improvements in photographic benches
GB939022A (en) Device for the production of pictures creating a stereoscopic effect
GB1045740A (en) Improvements relating to photographic enlarging apparatus
CA689120A (en) Optical projection systems with facetted correction lens for minimizing keystoning of off-axis projectors
GB1537304A (en) Microform reader
GB1161409A (en) Improvements in or relating to Focussing Means
GB639753A (en) Improvements relating to cinematograph apparatus
GB626929A (en) Improved lens mounting for cinematograph projectors
CA567521A (en) Lens adjusting device for film projector
GB925375A (en) Improvements in or relating to means for focusing the objective lens of a slide projector
GB564298A (en) Improvements in projectors for showing stereoscopic pairs of of pictures photographed on a film or plate
GB841102A (en) Improvements in or relating to a film gate for motion-picture film
GB1342926A (en) Optical system
GB727696A (en) Improvements in and relating to cinema projection
ES310080A3 (en) Projector cinematographic viewer of toy, for films of 8 mm. (Machine-translation by Google Translate, not legally binding)
GB800759A (en) Improvements in cinematograph intermittent feed mechanism