US3902182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and device for determining photographically dimensions of persons and objects
Assignee: Individual
•
Filing: 1973-10-18
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Granted: 1975-08-26
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Expires: 1993-10-18
Abstract
Abstract The invention relates to photographing of objects or persons for measuring purposes by placing the object or person between the camera and a screen or wall provided with grids or scales and the camera. The division of the screen is marked in values of unit lengths such as centimeters and decimeters and is such that the ratio between the divisions and a corresponding true unit length is equal to the ratio between the distance of the camera from the screen and the distance of the camera from the object so that the photographed values of units shown by the photographed image are true values free from parallax.
Inventors
- 👤 Lars Evert Bernhard Hillborg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:47
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/103; A61B5/107; A61B5/1079
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
Apparatus for producing images of an object for measuring purposes comprising a plane gackground surface provided with a scale or grid, the divisions of the scale of the sidelength of an individual square in the grid being the unit length in which the object is to be measured, multiplied by the ratio between the distance between the camera and the object, a supporting surface for the object, which is provided with a straight line indicator marking for placement of the object and/or camera, and a straight line indicator marking on the background surface, wherein the camera and the supporting surface can be set so that the straight line indicator markings are parallel when photographed.
Claim 2
Dependent Claim
114 words
Apparatus for producing images of an object for measuring purposes comprising a plane gackground surface provided with a scale or grid, the divisions of the scale of the sidelength of an individual square in the grid being the unit length in which the object is to be measured, multiplied by the ratio between the distance between the camera and the object, a supporting surface for the object, which is provided with a straight line indicator marking for placement of the object and/or camera, and a straight line indicator marking on the background surface, wherein the camera and the supporting surface can be set so that the straight line indicator markings are parallel when photographed.
References Cited (Backward Citations)
US1669407A
Cited
US1937433A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-08-25 | 1979-02-24 | 1979-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-25 | 1983-02-24 | 1983-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-25 | 1987-02-24 | 1987-08-26 | $7700.00 | Window Closed / Lapsed |