Camera optical system having nonphotographic lens formed integrally in photographic lens section
AssigneeOlympus Optical Co., Ltd.
InventorsTamotsu Koiwai, Mitsuhiro Sato
Life of this patent
Estimating the term…
Abstract
A camera optical system has a photographic optical system and a finder optical system. The photographic optical system has a photographic lens section that receives an optical image from a subject to be photographed and forms an image on a film. The finder optical system has a nonphotographic lens provided integrally with the photographic lens section of the photographic optical system.
Claims29
A camera optical system comprising:
- a photographic optical system which receives an optical image from a subject to be photographed and which forms an image on a photographic medium;
- wherein said photographic optical system includes a lens in which a photographic lens section and a nonphotographic lens section are integrally formed, said nonphotographic lens section being provided in a range substantially contained in a maximum outside diameter of the photographic lens section and an outside effective range in which a photographic luminous flux passes the photographic lens section.
A camera photographic optical system for directing an optical image to a film, comprising:
- an optical member in which a photographic lens section, which causes a photographic luminous flux to pass through a part of a photographic optical path, and a non-photographic lens section, which causes a non-photographic luminous flux to pass through another part of the photographic optical path, are integrally formed.
A photographic optical system comprising:
- an optical member which directs an optical image to a film,
- wherein the optical member includes a section which is unrelated to image formation on the film and at which a part of a non-photographic optical system is integrally formed.
A photographic optical system for directing an optical image to a film, comprising:
- an optical element in which a photographic luminous flux area and a nonphotographic luminous flux area are integrally formed,
- wherein the photographic luminous flux area is an area through which a photographic luminous flux passes and contains an optical axis of the photographic optical system, and
- wherein the non-photographic luminous flux area is an area through which a non-photographic luminous flux passes, and is provided outside the photographic luminous flux area and at a position different from a position of the photographic luminous flux area in a longitudinal direction of a photographing area of the film.
A camera photographic optical system comprising:
- a photographic lens comprising an integrally formed luminous flux passing section and nonphotographic luminous flux passing section,
- wherein the luminous flux passing section allows a luminous flux contributing to photography to pass through, and the nonphotographic luminous flux passing section allows a luminous flux for sensing information on at least one of observation and photography to pass through.
A camera photographic optical system comprising:
- a photographic lens including a photographic luminous flux passing section that allows a luminous flux contributing to photography to pass through,
- wherein a top and a bottom portion of the photographic luminous flux passing section are cut away to form cut faces, and nonphotographic luminous flux passing sections that allow a luminous flux for sensing information on observation to pass through are provided integrally to the cut faces.
A camera photographic optical system comprising:
- a photographic lens including a photographic luminous flux passing section that allows a luminous flux contributing to photography to pass through,
- wherein a top and a bottom portion of the photographic luminous flux passing section are cut away to form cut faces, and nonphotographic luminous flux passing sections that allow a luminous flux for sensing information on photography to pass through are provided integrally to the cut faces.
A camera optical system comprising:
- a photographic optical system that receives an optical image from a subject to be photographed and that forms an image on a photographic medium, and
- wherein the photographic optical section includes a lens having (i) a photographic lens section whose shape is obtained by cutting away a part of a rim of a round lens, and (ii) a non-photographic lens section integrally formed with the photographic lens section at the cut-away part of the rim of the round lens and outside an effective range in which a luminous flux passes through the photographic lens section.
Dependencies are inferred from the claim text.