WO1981003554A1 - Appareil photographique - Google Patents

Appareil photographique Download PDF

Info

Publication number
WO1981003554A1
WO1981003554A1 PCT/JP1980/000119 JP8000119W WO8103554A1 WO 1981003554 A1 WO1981003554 A1 WO 1981003554A1 JP 8000119 W JP8000119 W JP 8000119W WO 8103554 A1 WO8103554 A1 WO 8103554A1
Authority
WO
WIPO (PCT)
Prior art keywords
lens
film
camera
parallel
optical axis
Prior art date
Application number
PCT/JP1980/000119
Other languages
English (en)
Japanese (ja)
Inventor
C Kuo
Original Assignee
Masumoto B
C Kuo
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 Masumoto B, C Kuo filed Critical Masumoto B
Priority to PCT/JP1980/000119 priority Critical patent/WO1981003554A1/fr
Publication of WO1981003554A1 publication Critical patent/WO1981003554A1/fr

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
    • G03B19/00—Cameras
    • G03B19/02—Still-picture cameras
    • G03B19/04—Roll-film cameras
    • 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
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/02—Bodies
    • G03B17/17—Bodies with reflectors arranged in beam forming the photographic image, e.g. for reducing dimensions of camera

Definitions

  • This invention relates to the structure of the camera body.
  • This invention is particularly suitable for 35 cameras still cameras, and can be applied to 6X6a version cameras as well.
  • the conventional force camera has a structure in which there is a space between the shooting lens and the film, and the light passing through the shooting lens travels straight and reaches the finolem surface.
  • the finolem surface is provided at a position substantially perpendicular to the optical axis of the photographing lens and the film surface and substantially behind the photographing lens.
  • a space of 50 dragons was required between the shooting lens and the plane of the finolem. It was thought that it would be unavoidable for the lens barrel to protrude forward even with the miniaturization.
  • the focal length of the shooting lens is shortened, for example, to 40 mm to 35 mm, the projection of the lens barrel can be suppressed accordingly.
  • the lens widens, so-called passive-active distortion increases and the image becomes unnatural.
  • the overall volume of the camera is reduced, if the lens portion is protruded, there is a disadvantage that the overall shape is massive and portability is still not improved.
  • This invention is a pentaf between the shooting lens and the image plane.
  • the rhythm is interposed, and the pentaph is used.
  • the / JN opening surface of the rhythm is located near the rear of the imaging lens, and a -finolem surface is provided near and parallel to the large opening surface of the pen prism.
  • the purpose is to provide a power camera with a new photographic optical system that specializes in this.
  • the light that has passed through the shooting lens passes through a medium having a refractive index larger than that of air, and the force is even. Since the rhythm reaches the finolem surface twice due to total internal reflection by the rhythm, the volume behind the lens is reduced, and furthermore, the shooting lens optical axis and the finder The norm planes run parallel, resulting in a fin-lens machine and a fin-lens fin. Since the axis of one lens is parallel to the optical axis of the shooting lens, the height of the camera body is limited; the width of the fin is limited.
  • FIG. 1 is a perspective view showing an overall configuration of an embodiment of the present invention, in which force meshes are indicated by phantom lines.
  • FIG. 2 is a longitudinal sectional view of FIG. 1 cut along the optical axis.
  • FIG. 5 is a sectional view taken along the line m-m of FIG.
  • the photographic optical system is provided with a lens provided in parallel with the optical axis of the lens (10) by reflecting the refracted light of the photographic lens (10) twice by the bent prism (20).
  • the image is formed on the surface of the room.
  • the small opening face (21) of the penta-prism (20) is provided in the vicinity of the rear of the lens (10) in a direction perpendicular to the optical axis of the lens. .
  • a mask plate (31) and a film pressure plate (32) are provided in the vicinity of the large opening surface (22) of the rhythm (2D), and a mouth-to-hole fin is passed between them.
  • the pen prism (20) has a first total reflection surface (25) and a second total reflection surface (24) on which aluminum or silver is deposited.
  • the large opening surface orthogonal to the / opening surface (21) is obtained.
  • An image is formed from (22) through the space (25) to the film surface. Pentough.
  • the large opening surface (22) of the rhythm (20) is subjected to anti-reflection treatment to prevent the formation of a ghost image on the finolem surface.
  • a rotary diaphragm (53) and a shutter (54) are arranged in front of (10), and a diaphragm operation slide provided on the upper surface of the case (50).
  • the shutter (54) is provided on the front of the case (3 (3)
  • the exposure time is controlled by the amount of light received by the electric eye light receiving element (50) and known control means.
  • a finole spool room (57) for loading a finolem magazine and A film hoisting spool (58) is provided, and a hoisting lever (59) provided at the rear of the case (50) allows the film to be wound up. Is driven. Both the rotation axis of the film spool and the rotation axis of the finole winding spool are parallel to the shooting lens optical axis.
  • a lid (41) that opens and closes around a hinge (4 (1)) parallel to the optical axis of the lens is provided, and a film pressure plate (52) is provided on the inner surface of the lid (41).
  • a rewinding knob (42) is provided on the rotating shaft of the film spool.
  • the finder optical system (50) is provided at one end of the force mailer.
  • the optical axis of this viewfinder optical system (50) is parallel to the optical axis of the imaging lens (10).
  • the viewfinder optical system (50) is composed of an objective lens (51), an eyepiece lens (52), and a mirror lens (55) (54), and uses a short lens barrel. To obtain a long optical path.
  • a strobe light emitter (43) is provided at the other end and front of the force camera.
  • the design example of the photographing optical system in this embodiment is as follows.
  • the shooting lens (10) is composed of 4 ⁇ lenses "(11) (12) (15) (14), and the design example is shown in the table.
  • 1, 2, ... 6 are numbers assigned to the lens surface in order from the front ⁇ is the radius of curvature (dragon), D is the spatial distance from the lens surface to the next surface ( «) , Nd and d denote the refractive index and di-value of the substance in front of the lens surface. Pentough. rhythm
  • (20) is the angle ⁇ force S 90, ⁇ force 112 0 ⁇ 0 ⁇
  • the light that has passed through the photographic lens ( ⁇ ) is vertically moved twice by the reflecting surfaces (25) and (24) of the ventilator (20).
  • the image is inverted and an erect image is obtained on the film surface.
  • the orientation of this image is the same as that of a normal camera, and the film processing after shooting is the same.
  • the photographing lens does not protrude and can be entirely housed in a small flat rectangular case, making it extremely portable. You can get a good camera.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Cameras In General (AREA)

Abstract

Un appareil photographique possede un objectif photographique (10) dans la partie avant et un prisme pentagonal (20) dispose derriere l'objectif (10). La lumiere qui passe au travers de la lentille (10) est reflechie deux fois dans le prisme (20) et dirigee suivant la direction perpendiculaire a l'axe optique de l'objectif (10). La lumiere est ainsi focalisee au voisinage d'un grand plan d'ouverture (22) du prisme (20). On y trouve un axe de la bobine du film et un axe de la bobine d'enroulement du film qui sont paralleles a l'axe optique de l'objectif (10) sur le cote droit et le cote gauche de l'objectif (10), un couvercle (41) au fond de l'appareil photo et une plaque de pression du film (32) disposee sur la surface interne du couvercle (41).
PCT/JP1980/000119 1980-06-03 1980-06-03 Appareil photographique WO1981003554A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP1980/000119 WO1981003554A1 (fr) 1980-06-03 1980-06-03 Appareil photographique

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
WOJP80/00119 1980-06-03
PCT/JP1980/000119 WO1981003554A1 (fr) 1980-06-03 1980-06-03 Appareil photographique

Publications (1)

Publication Number Publication Date
WO1981003554A1 true WO1981003554A1 (fr) 1981-12-10

Family

ID=13706051

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1980/000119 WO1981003554A1 (fr) 1980-06-03 1980-06-03 Appareil photographique

Country Status (1)

Country Link
WO (1) WO1981003554A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4345538A1 (fr) * 2022-09-27 2024-04-03 Samsung Electronics Co., Ltd. Module de caméra et ensemble module de caméra le comprenant

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2339361A1 (de) * 1973-08-03 1975-02-13 Kodak Ag Photographische kamera
JPS50145344U (fr) * 1974-05-17 1975-12-01
JPS50145343U (fr) * 1974-05-17 1975-12-01
GB1436828A (en) * 1973-08-21 1976-05-26 Asahi Optical Co Ltd Single lens reflex camera
DE2659729A1 (de) * 1976-04-06 1977-10-20 Optigon Research And Dev Corp Kamera
US4119980A (en) * 1976-09-02 1978-10-10 Polaroid Corporation Prism camera

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2339361A1 (de) * 1973-08-03 1975-02-13 Kodak Ag Photographische kamera
GB1436828A (en) * 1973-08-21 1976-05-26 Asahi Optical Co Ltd Single lens reflex camera
JPS50145344U (fr) * 1974-05-17 1975-12-01
JPS50145343U (fr) * 1974-05-17 1975-12-01
DE2659729A1 (de) * 1976-04-06 1977-10-20 Optigon Research And Dev Corp Kamera
US4119980A (en) * 1976-09-02 1978-10-10 Polaroid Corporation Prism camera

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4345538A1 (fr) * 2022-09-27 2024-04-03 Samsung Electronics Co., Ltd. Module de caméra et ensemble module de caméra le comprenant

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