Abstract: The subject invention provides a reflex camera having a novel means of image reflection for use in viewing an image, transmitted through an entrance pupil to said image reflection means, at an exit pupil remote from both said means and said entrance pupil.Basically, the camera of the subject invention includes an essentially flat plate having a reflective surface. The reflective surface is so formed as to provide a plurality of ellipsoidal segments extending thereover. The ellipsoidal segments are provided with common foci, whereby any light passing through said entrance pupil and impinging on any of said ellipsoidal segments will be reflected from such segment to said exit pupil. Such reflection will be independent of the direction of the light from said entrance pupil and it should be noted that the subject invention will be free of aberrations such as astigmatism and coma.
Abstract: A battery operated camera includes a carrying strap having members thereon for receiving the opposite ends of a battery for powering electrical components of the camera. The battery includes structure thereon for attaching it to the carrying strap so that a major portion of the battery serves as a carrying handle on the strap.
Abstract: A system for mounting accessories, e.g., filters, supplementary lenses, lens shades, etc., on a compact camera housing including a flash unit receiving socket. The system includes an accessory holder that is adapted to be connected to the camera flash socket to hold it on the housing. The holder includes a flash socket that is operatively connected to the camera socket when the holder is coupled thereto. Also special accessory mounts are provided for attaching accessories to the holder.
Abstract: An accessory mount for use in a system for mounting accessories, e.g., filters, supplementary lenses, lens shades, etc., on a compact camera housing including a flash unit receiving socket. The system includes an accessory holder that is adapted to be connected to the camera flash socket to hold it on the housing. The holder includes a flash socket that is operatively connected to the camera socket when the holder is coupled thereto. The invention relates to special accessory mounts which are provided for attaching accessories to the holder.
Abstract: A self-developing camera having a housing which is formed in part by a molded plastic housing section. The housing section includes, integrally molded therewith, a film exit slot, a camming member for deflecting a film unit towards the exit slot, as it emerges from a pair of pressure-applying members, to influence the distribution of fluid processing composition being spread within the film unit, and positioning structure cooperating with a mounting bracket for the pressure-applying members for accurately positioning the film exit slot and camming member with respect to the pressure-applying members.
Abstract: The invention is an optical element, one version of which is useful for operating an automatic exposure control of a self-contained camera coupled to a microscope without detracting from the brightness of the magnified image to be recorded on the camera's film format. The article includes three reflecting surfaces arranged to extract a small part of the light emerging from the microscope's eyepiece and direct it into the photodetector of the automatic exposure control. A lensrefracts the light, after the third reflection, to improve the distribution of the light onto the camera's photodetector. The article is suitable for manufacture as a homogeneous molding of transparent plastic.
Type:
Grant
Filed:
December 4, 1974
Date of Patent:
August 24, 1976
Assignee:
Polaroid Corporation
Inventors:
Mary Conlin McCann, William T. Plummer, Vivian K. Walworth
Abstract: Molding devices and methods for producing a low cost, multi-element, adjustable focus lens assembly for use in photographic apparatus. The assembly features a two-part molded plastic lens mount comprising forward and rear mounts, each having an uncentered lens element insert molded and centered therein and an integrally molded screw thread for coupling the forward and rear mounts together. The molding devices comprise cavity molds having movably mounted zonal clamps therein for centering the lens element within the cavity and for disengaging the molded mounts from surfaces in the molds that form the screw threads.
Abstract: A modular subassembly for a self-developing camera that has an operating cycle which includes the exposure and processing of a film unit. The subassembly includes a molded base section having integrally formed structure for mounting components of the subassembly including a film advance device, film counter, motor and gear train. These components are retained on the base section by a molded retaining section which snaps onto the base section.
Abstract: An improved override and hold-down mechanism for use with a reflex camera of the type incorporating a four bar linkage for effecting movement of a reflex member between viewing and exposure positions. The override mechanism includes a ramp surface configured to multiply the hold-down torque generated by a pair of override springs and secures the reflex member in the viewing position against inadvertent movement.CROSS REFERENCE TO RELATED APPLICATIONSThis application is a division of copending application Ser. No. 355,685 filed on Apr. 30, 1973 and entitled, "Reflex Member Hold-Down Mechanism"now U.S. Pat. No. 3,878,545.
Abstract: A photographic film assemblage including a container, a plurality of self-developing film units within the container which are adapted to be sequentially exposed and treated with a liquid processing composition, and members associated with the container so as to form an integral part of the assemblage for controlling the distribution of the liquid processing composition during treatment of a film unit. A photographic apparatus with which the film assemblage is adapted to be used includes structure for locating the distribution control members in operative association with a film unit located in position for exposure and subsequent treatment with the liquid processing composition.
Type:
Grant
Filed:
September 20, 1973
Date of Patent:
April 6, 1976
Assignee:
Polaroid Corporation
Inventors:
William W. Alston, Jr., John J. Driscoll, Richard R. Wareham