Patent application number | Description | Published |
20080218885 | Prism, Imaging Device and Lighting Device Including the Same, and Prism Manufacturing Method | 09-11-2008 |
20090147363 | COMPOSITE OPTICAL ELEMENT - The present invention relates to composite optical elements, and particularly to a composite optical element in which second and third optical components are coupled to a first optical component. | 06-11-2009 |
20090195894 | COMPOSITE OPTICAL ELEMENT AND METHOD FOR MANUFACTURING THE SAME - The present invention belongs to a technical field related to a composite optical element including a first optical component and a second optical component coupled to the first optical component. In a composite optical element | 08-06-2009 |
20090296239 | COMPOSITE LENS AND METHOD FOR MANUFACTURING THE SAME - The present invention relates to a composite lens and a method for manufacturing the same, particularly to a composite lens in which a second lens component is coupled to a first lens component at part of a first surface, and intends to improve optical characteristics. A composite lens ( | 12-03-2009 |
20090323502 | COMPOSITE OPTICAL ELEMENT - The present invention relates to composite optical elements, and particularly to a composite optical element including a first optical component and a second optical component coupled to the first optical component. | 12-31-2009 |
20100321801 | CEMENTED OPTICAL ELEMENT - The present invention provides a cemented optical element including: a first optical element having a concave surface; a second optical element having a convex surface facing the concave surface; and an adhesive layer for bonding the convex surface to the concave surface. The concave surface and the convex surface are curved surfaces parallel to each other, with curvature centers thereof coinciding with each other on an optical axis. Thereby, the cemented optical element with high shape accuracy can be obtained. | 12-23-2010 |
20110013294 | CEMENTED OPTICAL ELEMENT - A cemented optical element includes a convex lens and a concave lens. The convex lens has a first convex surface and a second convex surface that are rotationally symmetric with respect to an optical axis. The convex lens has an edge with a thickness of substantially zero. The concave lens has a concave surface bonded to the first convex surface of the convex lens. Preferably, the peripheral portion of the concave lens extends radially outwardly beyond the convex lens to the extent that it is located within an area surrounded by an extension zone of the second convex surface of the convex lens. | 01-20-2011 |
20110019286 | OPTICAL COMPONENT AND METHOD FOR PRODUCING THE SAME - A concave lens as an optical component is made of glass containing 20 to 22% of B | 01-27-2011 |
20110019287 | OPTICAL COMPONENT AND METHOD FOR PRODUCING THE SAME - A concave lens as an optical component is made of glass containing 20 to 22% of B | 01-27-2011 |
20110222172 | OPTICAL ELEMENT - An optical element includes: an optically functional part having a first convex surface and a second convex surface intersecting with an optical axis and facing opposite to each other; and an outer peripheral part provided around the optically functional part, the outer peripheral part having a first outer peripheral surface extending from a periphery of the first convex surface and a second outer peripheral surface extending from a periphery of the second convex surface. The first outer peripheral surface and the second outer peripheral surface each are formed to be tapered. A thickness of the outer peripheral part in an optical axis direction is reduced toward a direction moving away from the optical axis. | 09-15-2011 |
20120212818 | DIFFRACTIVE OPTICAL ELEMENT AND IMAGING APPARATUS USING THE SAME - A diffractive optical element includes a diffractive surface. Raised portions and recessed portions are alternately arranged on the diffractive surface. The valley bottoms of the recessed portions are formed to have a chamfered shape. | 08-23-2012 |
20120212819 | DIFFRACTIVE OPTICAL ELEMENT AND IMAGING APPARATUS USING THE SAME - A diffractive optical element includes a diffractive surface. Raised portions and recessed portions are alternately arranged on the diffractive surface. A shape of the valley bottoms of the recessed portions varies according to regions of the diffractive surface. | 08-23-2012 |
20120327514 | DIFFRACTIVE OPTICAL ELEMENT AND IMAGING APPARATUS USING THE SAME - A diffractive optical element includes a first optical member, a second optical member, and a third optical member stacked on each other in this order. A diffractive surface including a plurality of raised parts is formed at an interface between the first and second optical members. The third optical member contacts at least one of the raised parts. | 12-27-2012 |
20130010362 | DIFFRACTIVE OPTICAL ELEMENT AND IMAGING APPARATUS USING THE SAME - A diffractive optical element includes a first optical member, a second optical member, and a third optical member stacked on each other in this order in an optical axis direction. A diffractive surface including a plurality of raised parts is formed at an interface between the first and second optical members. The first and third optical members contact each other at part other than the raised parts. | 01-10-2013 |
20130141790 | DIFFRACTIVE OPTICAL ELEMENT AND IMAGING APPARATUS USING THE SAME - It is an objective of the present disclosure to prevent or reduce cracks in edge portions of raised portions of a diffractive optical element. | 06-06-2013 |
20140208801 | METHOD FOR MANUFACTURING DIFFRACTIVE OPTICAL ELEMENT - A method for manufacturing a diffractive optical element by pressing a glass material with a molding die in which an inverted shape relative to a shape of a diffractive surface of the diffractive optical element is formed. The method includes: preparing the molding die, a molding surface of the molding die being formed with a plurality of raised portions chamfered at tip ends thereof; and pressing, with the molding die, the glass material into the diffractive optical element in which raised portions and recessed portions are alternately arranged on the diffractive surface and valley bottoms of the recessed portions are formed to have a chamfered shape. | 07-31-2014 |
20140232026 | METHOD FOR MANUFACTURING DIFFRACTIVE OPTICAL ELEMENT - A diffractive optical element includes a diffractive surface. Raised portions and recessed portions are alternately arranged on the diffractive surface. A shape of the valley bottoms of the recessed portions varies according to regions of the diffractive surface. | 08-21-2014 |