摘要:
An optical element (1) is provided for generating interfacial waves by means of electro wetting. The optical element (1) comprises a fluid chamber (3) with at least one side wall and an optical axis (10). Furthermore the fluid chamber (3) includes a first fluid (A) and a second fluid (B) which are separated by an interface (4), the fluids (A,B) being immiscible. A first electro wetting electrode (2) and a second electro wetting electrode (9) are provided, the first electro wetting electrode (2) is separated from the first fluid (A) and the second fluid (B) by a fluid contact layer (8). The second electro wetting electrode (9) is arranged to act on the first fluid (A). The selected standing or running waves can be formed by providing selected voltages to the first and the second electro wetting electrodes (2,9) respectively.
摘要:
An optical scanning device for scanning an information layer (2) of an optical record carrier (3). The device includes a radiation source (7) for providing at least a first radiation beam of a first polarization along a first optical path, and a second radiation beam of a second, different polarization along a second, different optical path. An objective lens system, having an optical axis (19a), is arranged to converge the radiation beams on the information layer A beam-deflecting element (30) comprising a birefringent material is orientated such that each of said polarized radiation beams experiences a different index of refraction upon passing through the birefringent material, and is arranged to refract at least the first radiation beam towards the optical axis.
摘要:
An electrowetting module (20) comprises a fluid chamber (8) which contains a first fluid (A) and a second fluid (B), which are separated by an interface (14), and means to (16,17) exert a force on at least one of the fluids to change the position and/or shape of the interface. By providing at least one of the fluids with a compound having at least one aromatic, non-fused, residue, the performance of the module can be enhanced. For example the optical power of an electrowetting lens (30) can be increased.
摘要:
A variable lens includes a chamber defined by at least one side wall and has an optical axis extending longitudinally through the chamber. The chamber contains a first fluid and a second fluid contact over a meniscus extending transverse the optical axis. The perimeter of the meniscus is constrained by the side walls. The fluids are substantially immiscible, and have different indices of refraction. At least one pump is arranged to controllably alter the position of the meniscus along the optical axis by altering the relative volume of each of the fluids contained within the chamber.
摘要:
A variable focus lens comprising a first fluid (A) and a second, non-miscible, fluid (B) in contact over a meniscus. A first electrode (2) separated from the fluid bodies by a fluid contact layer (10), and a second electrode (12) in contact with the first fluid to cause an electrowetting effect whereby the shape of the meniscus is altered. The fluid contact layer has a substantially cylindrical inner wall.
摘要:
A catheter apparatus (100, 2000, 3000, 4000, 540) includes an elongated body (110) having proximal (112) and distal (114) ends, an acoustic transducer (130, 2300, 5 3300, 4300, 544), disposed proximate the distal end (114) of the elongated body (110), and a variably-refracting acoustic lens (140, 2200, 3200, 4200, 542) adapted to dynamically adjust a direction associated with an acoustic wave coupled to the acoustic transducer in response to one or more control signals provided thereto.
摘要:
An electrowetting cell including an expandable joint between a body section and an end section. Such an expandable joint could include a membrane or a flange-like portion.
摘要:
An optical element is provided for generating interfacial waves by means of electro wetting. The optical element comprises a fluid chamber with at least one side wall and an optical axis. Furthermore the fluid chamber includes a first fluid (A) and a second fluid (B) which are separated by an interface, the fluids (A, B) being immiscible. A first electro wetting electrode and a second electro wetting electrode are provided, the first electro wetting electrode is separated from the first fluid (A) and the second fluid (B) by a fluid contact layer. The second electro wetting electrode is arranged to act on the first fluid (A). The selected standing or running waves can be formed by providing selected voltages to the first and the second electro wetting electrodes respectively.
摘要:
It is described a device (100) for analyzing biological cell material (115). The device (100) comprises a light source arrangement (120), which is adapted for directing a first (131) and a second illumination light (132) towards the cell material (115), wherein the first (131) and the second (132) illumination light comprises a first and a second spectral radiation component, respectively. The device (100) further comprises a detector arrangement (170), which is adapted for receiving a first measurement light (151) based on a first interaction of the first illumination light (131) with the cell material (115) and a second measurement light (152) based on a second interaction of the second illumination light (152) with the cell material (115). Further, the device (100) comprises an evaluation unit (180), which is coupled the detector arrangement (170) and which is adapted to evaluate a first signal (171a) and a second signal (171b) being indicative for the first (151) and the second measurement light (151), respectively. The device (100) may be used for accomplishing ultraviolet DNA image cytometryin combination with autofluorescence measurements of NAD(P)H.
摘要:
A zoom optical system is provided which has a lens system which comprises a first lens which is arranged to provide a continuously variable focus for a beam of radiation. The lens system further comprises a switchable optical element including a first fluid, a second fluid and a wavefront modifier having a part through which said radiation beam is arranged to pass. In a first mode the switchable optical element has a first fluid configuration with said part being substantially covered by the first fluid, and in a second mode the switchable optical element has a second, different, fluid configuration with said part being substantially covered by the second fluid.