US5319387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for specifying coordinates of a body in three-dimensional space
Assignee: Sharp Corp
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Filing: 1992-04-17
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Granted: 1994-06-07
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Expires: 2012-04-17
Abstract
Abstract An apparatus for specifying three-dimensional coordinates of a body includes an image position sensing unit for converging a light radiating from a specific body arranged in a space on a plane to form an image and detecting a position of the image on the plane, one or a plurality of mirrors for reflecting the light from the specific body to allow the reflected light to enter the image position sensing unit, and a coordinate calculating unit for calculating coordinates of the specific body in a three-dimensional coordinate system defined in a three-dimensional space based on the positions of the images respectively formed by a light radiating from the specific body and directly entering the image position sensing unit and a light reflected by the mirror and entering the image position sensing unit.
Inventors
- 👤 Kouhei Yoshikawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:21
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/01; G06F3/03; G06F3/033; G06F3/0346; G06F3/0304; G06F3/0325
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
154 words
An apparatus for specifying three-dimensional coordinates of a body including: image position sensing means for converging incident light radiated from said body arranged in a predetermined region of a three-dimensional space to form an image on a predetermined plane and detecting a position of said image on said predetermined plane, reflecting means for reflecting the light radiating from said body to allow the reflected light to enter said image position sensing means, and coordinate calculating means for calculating coordinates of said body in a three-dimensional coordinate system defined in said three-dimensional space based on a position, on said predetermined plane, of an image formed by a direct incident light radiated from said body and directly entering said image position sensing means, and a position, on said predetermined plane, of an image formed by an indirect incident light radiated from said body and reflected by said reflecting means and entering said image position sensing means.
Claim 2
Independent Claim
154 words
An apparatus for specifying three-dimensional coordinates of a body including: image position sensing means for converging incident light radiated from said body arranged in a predetermined region of a three-dimensional space to form an image on a predetermined plane and detecting a position of said image on said predetermined plane, reflecting means for reflecting the light radiating from said body to allow the reflected light to enter said image position sensing means, and coordinate calculating means for calculating coordinates of said body in a three-dimensional coordinate system defined in said three-dimensional space based on a position, on said predetermined plane, of an image formed by a direct incident light radiated from said body and directly entering said image position sensing means, and a position, on said predetermined plane, of an image formed by an indirect incident light radiated from said body and reflected by said reflecting means and entering said image position sensing means.
Claim 3
Dependent Claim
17 words
The apparatus according to claim 1, wherein said incident light radiated from said body includes visible light.
Claim 4
Dependent Claim
60 words
The apparatus according to claim 2, further including: first holding means for holding said reflecting means for rotation around a first axis, and first angle detecting means for detecting a rotation angle of said reflecting means around said first axis, wherein said coordinate calculating means further calculates said coordinates based on the rotation angle of said first angle detecting means.
Claim 5
Dependent Claim
66 words
The apparatus according to claim 3, further including: second holding means for holding said reflecting means for rotation around a second axis not parallel with said first axis, and second angle detecting means for detecting a rotation angle of said reflecting means around said second axis, wherein said coordinate calculating means further calculates said coordinates based on the rotation angle of said second angle detecting means.
Claim 6
Dependent Claim
62 words
The apparatus according to claim 3, further including first rotating means responsive to an output of said image position sensing means for rotating said reflecting means around said first axis such that the visible light radiating from said body and entering said image position sensing means via said reflecting means has a reflection point on said reflecting means near said first axis.
Claim 7
Dependent Claim
62 words
The apparatus according to claim 4, further including first rotating means responsive to an output of said image position sensing means for rotating said reflecting means around said first axis such that the visible light radiating from said body and entering said image position sensing means via said reflecting means has a reflection point on said reflecting means near said first axis.
Claim 8
Dependent Claim
62 words
The apparatus according to claim 6, further including second rotating means responsive to the output of said image position sensing means for rotating said reflecting means around said second axis such that the visible light radiating from said body and entering said image position sensing means via said reflecting means has the reflection point on said reflecting means near said second axis.
Claim 9
Dependent Claim
14 words
The apparatus according to claim 1, further including a plurality of said reflecting means.
Claim 10
Dependent Claim
17 words
The apparatus according to claim 8, wherein said incident light radiated from said body includes visible light.
Claim 11
Dependent Claim
72 words
The apparatus according to claim 9 further including: first holding means for holding a first of said plurality of said reflecting means for rotation around a first axis, and first angle detecting means for detecting a rotation angle of said first of said plurality of said reflecting means around said first axis, wherein said coordinate calculating means further calculates said coordinates based on the rotation angle of said first angle detecting means.
Claim 12
Dependent Claim
78 words
The apparatus according to claim 10, further including: second holding means for holding said first of said plurality of said reflecting means for rotating around a second axis not parallel with said first axis, and second angle detecting means for detecting a rotating angle of said first of said plurality of said reflecting means around said second axis, wherein said coordinate calculating means further calculates said coordinates based on the rotation angle of said second angle detecting means.
Claim 13
Dependent Claim
79 words
The apparatus according to claim 10, further including first rotating means responsive to an output of said image position sensing means for rotating said first of said plurality of said reflecting means around said first axis such that the visible light radiating from said body and entering said image position sensing means via said first of said plurality of said reflecting means has a reflecting point on said first of said plurality of reflecting means near said first axis.
Claim 14
Dependent Claim
80 words
The apparatus according to claim 11, further including first rotating means responsive to an output of said image position sensing means for rotating said first of said plurality of said reflecting means around said first axis such that the visible light radiating from said body and entering said image position sensing means via said first of said plurality of said reflecting means has a reflection point on said first of said plurality of said reflecting means near said first axis.
Claim 15
Dependent Claim
80 words
The apparatus according to claim 13, further including second rotating means responsive to the output of said image position sensing means for rotating said first of said plurality of said reflecting means around said second axis such that the visible light radiating from said body and entering said image position sensing means via said first of said plurality of said reflecting means has the reflection point on said first of said plurality of said reflecting means near said second axis.
Claim 16
Dependent Claim
23 words
The apparatus according to claim 11, further including radiating means for radiating the incident light with a predetermined wavelength in said predetermined region.
Claim 17
Dependent Claim
36 words
The apparatus according to claim 15, further including a position designating member placed at an arbitrary position in said predetermined region, said position designating member including a portion with a curved surface for reflecting incident light.
Claim 18
Dependent Claim
89 words
The apparatus according to claim 1, wherein said coordinate calculating means includes: incident angle detecting means for detecting an angle of incidence of the direct incident light radiating from said body and the indirect incident light radiating from said body, and wherein said coordinate calculating means calculates the coordinates of said body in said three-dimensional coordinate system utilizing a predetermined equation based on the angle of incidence from said incident angle detecting means and data specifying a positional relationship between said reflecting means and said image position sensing means.
Claim 19
Dependent Claim
107 words
The apparatus according to claim 17, wherein said incident angle detecting means includes: image coordinate detecting means for detecting coordinates of the direct image and the indirect image formed on said predetermined plane in said three-dimensional coordinate system, table storing means for storing relationships between the coordinates of the direct image and the indirect image in said three-dimensional coordinate system and an angle of light incident to the direct image and the indirect image, respective, and table referring means for referring to said table storing means to obtain an angle of incidence of incident light utilizing the coorindates from said image coordinate detecting means as a key.
References Cited (Backward Citations)
US3898445A
Cited
JPS57211637A
Cited
JPS58211242A
Cited
US4553842A
Cited
US4613866A
Cited
US5073770A
Cited
US4928175A
Cited
US4811004A
Cited
US5148016A
Cited
US5012049A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-06-06 | 1997-12-06 | 1998-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-06-06 | 2001-12-06 | 2002-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-06-06 | 2005-12-06 | 2006-06-07 | $7700.00 | Window Closed / Lapsed |