OPTICAL SYSTEM HAVING INTEGRATED ILLUMINATION AND IMAGING OPTICAL SYSTEMS, AND 3D IMAGE ACQUISITION APPARATUS INCLUDING THE OPTICAL SYSTEM
First Claim
1. An optical system of a 3-dimensional image acquisition apparatus, the optical system comprising:
- an imaging lens with an aperture in a center region thereof through which an optical axis passes;
an illumination lens disposed within the aperture of the imaging lens; and
a light source for providing illumination light to the illumination lens,wherein the imaging lens and the illumination lens are coaxially disposed on the optical axis.
2 Assignments
0 Petitions
Accused Products
Abstract
An optical system including integrated illumination and imaging optical systems, and a 3-dimensional (3D) image acquisition apparatus including the optical system. In the optical system of the 3D image acquisition apparatus, the illumination optical system and the imaging optical system are integrated to have a coaxial optical path. Accordingly, there is no parallax between the illumination optical system and the imaging optical system, so that depth information about an object acquired using illumination light may reflect actual distances between the object and the 3D image acquisition apparatus. Consequently, the depth information about the object may be more precise. The zero parallax between the illumination optical system and the imaging optical system may improve utilization efficiency of the illumination light. As a result, a greater amount of light may be incident on the 3D image acquisition apparatus, which ensures to acquire further precise depth information about the object.
12 Citations
26 Claims
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1. An optical system of a 3-dimensional image acquisition apparatus, the optical system comprising:
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an imaging lens with an aperture in a center region thereof through which an optical axis passes; an illumination lens disposed within the aperture of the imaging lens; and a light source for providing illumination light to the illumination lens, wherein the imaging lens and the illumination lens are coaxially disposed on the optical axis. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 21, 22, 23)
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12. An optical system of a 3-dimensional image acquisition apparatus, the optical system comprising:
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an imaging lens with an aperture in a center region thereof through which an optical axis passes; a mirror disposed on the optical axis; a light source disposed off the optical axis to emit illumination light toward the mirror; and a flat transparent window disposed within the aperture of the imaging lens, wherein the mirror is located on the optical axis on a non-focal plane of the imaging lens. - View Dependent Claims (13, 14, 15, 16, 17, 24)
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18. An optical system of a 3-dimensional image acquisition apparatus, the optical system comprising:
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a common lens; a light source that provides illumination light to a center region of the common lens; and a matching lens that optically matches the light source to the center region of the common lens, wherein the light source is located on a non-focal plane of the common lens and on an optical axis of the common objective lens. - View Dependent Claims (25)
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19. An optical system of a 3-dimensional image acquisition apparatus, the optical system comprising:
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a common lens; a plane mirror disposed on an optical axis of the common lens; a light source disposed off the optical axis to emit light toward the plane mirror; wherein the light source provides the light as illumination light to a center region of the common lens; and a first matching lens disposed between the plane mirror and the light source, which optically matches the light source to the center region of the common lens, wherein the plane mirror is located on the optical axis on a non-focal plane of the common lens. - View Dependent Claims (20, 26)
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Specification