IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0293861
(2007-02-12)
|
등록번호 |
US-7834984
(2011-01-16)
|
우선권정보 |
DE-10 2006 013 292(2006-03-23) |
국제출원번호 |
PCT/EP2007/051325
(2007-02-12)
|
§371/§102 date |
20090108
(20090108)
|
국제공개번호 |
WO07/107413
(2007-09-27)
|
발명자
/ 주소 |
- Wolf, Peter
- Skultety-Betz, Uwe
- Stierle, Joerg
- Haase, Bjoern
- Renz, Kai
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
6 |
초록
▼
The invention relates to a device for optically measuring distance, in particular a hand-held device, comprising an transmitter unit (12) which is provided with a light source (17, 18) for transmitting optical measuring radiation (13, 20, 22) to a target object (15), and a capturing unit (14) which
The invention relates to a device for optically measuring distance, in particular a hand-held device, comprising an transmitter unit (12) which is provided with a light source (17, 18) for transmitting optical measuring radiation (13, 20, 22) to a target object (15), and a capturing unit (14) which is arranged at a distance on the optical axis (38) of the transmitter unit (14). Said capturing unit (14) comprises at least one optical detector (54) comprising a detection surface (66) for capturing optical radiation (16, 49, 50) reflected by the target object (15). According to the invention, the detection surface (66) of the detector (54) comprises an optical near range element (68), whose optically active surface (72, 74) is elongated in the direction (61) of the radiation shift for receding target object separations (48) and expands or has at least one essentially constant extension.
대표청구항
▼
What is claimed is: 1. A device for optically measuring distance, comprising: a transmission unit (12) that includes a light source (17, 18) for emitting optical measurement radiation (13, 20, 22) toward a target object (15); and a receiving unit (14) that is located a distance away from the optica
What is claimed is: 1. A device for optically measuring distance, comprising: a transmission unit (12) that includes a light source (17, 18) for emitting optical measurement radiation (13, 20, 22) toward a target object (15); and a receiving unit (14) that is located a distance away from the optical axis (38) of the transmission unit (12) and includes at least one optical detector (54) for receiving optical radiation (16, 49, 50) reflected by the target object (15), wherein the detection surface (66) of the detector (54) includes an optical close-range element (68) whose optically active surface (72, 74) is elongated in the direction (61) of a beam displacement for decreasing target-object distances (48) and expands, at least partially, in the direction orthogonal thereto, or it expands in an essentially constant manner. 2. The device as recited in claim 1, wherein the photosensitive surface (66, 70, 72, 74) of the detector (54) has a symmetry axis located in the common plane (56) of the optical axes (38, 51) of the transmission unit and the receiving unit. 3. The device as recited in claim 1, wherein the expansion of the photosensitive surface (66, 70, 72, 72) of the detector (54) is at least so great that a measurement spot (58) of the returning radiation (16, 49) from a target object (15) at a large object distance is detected in entirety. 4. The device as recited in claim 1, wherein the expansion of the photosensitive surface (66, 70, 72, 74) of the detector (54) in the direction perpendicular to the optical axis (51) of the receiving unit (14) is at least so great that the measurement beam (50) returning from a target object (15) at close range still strikes the photosensitive surface (72, 74) at least partially. 5. The device as recited in claim 1, wherein the active, photosensitive surface (66, 70, 72, 74) of the detector (54) is formed by partially covering a larger, optically sensitive detector surface (82). 6. The device as recited in claim 5, wherein the active, photosensitive surface (66, 70, 72, 74) of the detector (54) is formed by partially applying an optically opaque layer (84) on the originally larger, optically sensitive detector surface (72). 7. The device as recited in claim 1, wherein the light source (17, 18) is a laser, in particular a laser diode (18). 8. The device as recited in claim 7, wherein the light source (17, 18) emits radiation in the wavelength range of the spectrum of electromagnetic waves that is visible to the human eye. 9. A device for optically measuring distance, comprising: a transmission unit (12) that includes a light source (17, 18) for emitting optical measurement radiation (13, 20, 22) toward a target object (15); and a receiving unit (14) that is located a distance away from the optical axis (38) of the transmission unit (12) and includes at least one optical detector (54) for receiving optical radiation (16, 49, 50) reflected by the target object (15), wherein the detection surface (66) of the detector (54) includes an optical close-range element (68) whose optically active surface (72, 74) is elongated in the direction (61) of a beam displacement for decreasing target-object distances (48) and expands, at least partially, in the direction orthogonal thereto. 10. The device for optically measuring distance as recited in claim 1 or 9, wherein the device is a hand-held device.
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