IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0888735
(2010-09-23)
|
등록번호 |
US-8605258
(2013-12-10)
|
우선권정보 |
TW-99123159 A (2010-07-14) |
발명자
/ 주소 |
- Yang, Shu-Sian
- Chen, Hsin-Chia
- Gu, Ren-Hau
- Huang, Sen-Huang
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
2 |
초록
▼
A distance measuring device having a measuring range and configured for measuring a distance of at least an object located in the measuring range is provided. The distance measuring device includes a light emitting component, a diffusing component, an adjusting component and an image sensing compone
A distance measuring device having a measuring range and configured for measuring a distance of at least an object located in the measuring range is provided. The distance measuring device includes a light emitting component, a diffusing component, an adjusting component and an image sensing component. The light emitting component is configured for emitting a light beam. The diffusing component is disposed on a transmission path of the light beam and is configured for transforming the light beam into a measuring light beam with a specific pattern to irradiate the object. The adjusting component is configured for adjusting an incidence angle and an incidence location of the light beam striking at the diffusing component. The image sensing component has a field of view covering the measuring range. The distance measuring device has a far measurable distance. A method for measuring distance and another distance measuring device are also provided.
대표청구항
▼
1. A distance measuring device having a measuring range for measuring a distance of at least an object located in the measuring range, comprising: a light emitting component configured for emitting a light beam;a diffusing component disposed on a transmission path of the light beam, and the diffusin
1. A distance measuring device having a measuring range for measuring a distance of at least an object located in the measuring range, comprising: a light emitting component configured for emitting a light beam;a diffusing component disposed on a transmission path of the light beam, and the diffusing component being configured for transforming the light beam into a measuring light beam with a specific pattern to irradiate the object;an adjusting component configured for adjusting an incidence angle and an incidence location of the light beam striking at the diffusing component; andan image sensing component having a field of view, and the field of view covering the measuring range, wherein the image sensing component is configured for sensing an optical information of the specific pattern of the measuring light beam located in the measuring range so that the distance of the object could be calculated according to the optical information. 2. The distance measuring device as claimed in claim 1, wherein the adjusting component comprises a driving member, and the driving member is connected to the light emitting component to rotate the light emitting component. 3. The distance measuring device as claimed in claim 2, wherein the driving member comprises a motor or a microelectro mechanical systems device. 4. The distance measuring device as claimed in claim 1, wherein the adjusting component comprises: a reflecting member disposed between the diffusing component and the light emitting component and configured for reflecting the light beam to the diffusing component; anda driving member connected to the reflecting member to rotate the reflecting member. 5. The distance measuring device as claimed in claim 4, wherein the driving member comprises a motor or a microelectro mechanical systems device. 6. The distance measuring device as claimed in claim 1, further comprising a focusing lens disposed between the light emitting component and the diffusing component and on the transmission path of the light beam. 7. The distance measuring device as claimed in claim 6, wherein the focusing lens is a zoom lens. 8. The distance measuring device as claimed in claim 1, further comprising a movable member connected to the diffusing component and configured for moving the diffusing component. 9. The distance measuring device as claimed in claim 1, wherein the light emitting component is a laser emitter or a light emitting diode. 10. The distance measuring device as claimed in claim 1, wherein the diffusing component is selected from a group consisting of a diffuser, a diffraction component and a light uniforming sheet. 11. The distance measuring device as claimed in claim 1, wherein a first central axis of the measuring light beam is parallel to a second central axis of the field of view of the image sensing component. 12. The distance measuring device as claimed in claim 1, wherein an included angle is formed between a first central axis of the measuring light beam and a second central axis of the field of view of the image sensing component. 13. The distance measuring device as claimed in claim 1, further comprising a beam splitter disposed between the diffusing component and the image sensing component. 14. The distance measuring device as claimed in claim 13, wherein a first central axis of a portion of the measuring light beam passing through the beam splitter and a second central axis of the field of view of the image sensing component turned by the beam splitter are parallel or overlapped. 15. A method for measuring distance for the distance measuring device claimed in claim 1, comprising: dividing the measuring range into a plurality of sensing regions;adjusting the incidence angle and the incidence location of the light beam striking at the diffusing component by the adjusting component to let the measuring light beam with the specific pattern irradiate the sensing regions in sequence, and sensing optical information of the specific pattern of the measuring light beam in each of the sensing regions by the image sensing component; andanalyzing to obtain the distance of the object located in the measuring range according to the optical information. 16. A distance measuring device having a measuring range for measuring a distance of at least an object located in the measuring range, comprising: a light emitting component configured for emitting a light beam;a diffusing component disposed on a transmission path of the light beam, and the diffusing component being configured for transforming the light beam into a measuring light beam with a specific pattern to irradiate the object;a focusing lens disposed between the light emitting component and the diffusing component and on the transmission path of the light beam, and at least one of a focal length of the focusing lens and a distance between the diffusing component and the focusing lens being changeable; andan image sensing component having a field of view, and the field of view covering the measuring range, wherein the image sensing component is configured for sensing an optical information of the specific pattern of the measuring light beam located in the measuring range so that the distance of the object could be calculated according to the optical information. 17. The distance measuring device as claimed in claim 16, wherein the focusing lens is a zoom lens. 18. The distance measuring device as claimed in claim 16, further comprising a movable member connected to the diffusing component and configured for moving the diffusing component. 19. The distance measuring device as claimed in claim 16, wherein the light emitting component is a laser emitter or a light emitting diode. 20. The distance measuring device as claimed in claim 16, wherein the diffusing component is selected from a group consisting of a diffuser, a diffraction component and a light uniforming sheet. 21. The distance measuring device as claimed in claim 16, wherein a first central axis of the measuring light beam is parallel to a second central axis of the field of view of the image sensing component. 22. The distance measuring device as claimed in claim 16, wherein an included angle is formed between a first central axis of the measuring light beam and a second central axis of the field of view of the image sensing component. 23. The distance measuring device as claimed in claim 16, further comprising a beam splitter disposed between the diffusing component and the image sensing component. 24. The distance measuring device as claimed in claim 23, wherein a first central axis of a portion of the measuring light beam passing through the beam splitter and a second central axis of the field of view of the image sensing component turned by the beam splitter are parallel or overlapped.
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