Abstract: For example, a catadioptric lens may configured to direct light from a display to an eye of a user. The catadioptric lens may include a catadioptric folder configured to fold an optical path of the catadioptric lens. For example, the catadioptric folder may include a first surface including a semi-reflective surface; a second surface including a reflective polarizer surface, the second surface opposite to the first surface; and a retarder between the first surface and the second surface, the retarder configured to convert a polarization of the light in a path between the first surface and the second surface. For example, the first and second surfaces may be configured such that, over at least 10% of the catadioptric folder, an inter-surface distance of the catadioptric folder is monotonically decreasing with a distance from a central axis of the catadioptric lens.

Abstract: For example, a Head Mounted Display (HMD) may include a central display configured to display a first image in a central Field of View (FoV) based on an image scene to be displayed to a pupil of a user; a central lens configured to direct light of the first image toward the pupil of the user, a peripheral display configured to display a second image in a temporal FoV based on the image scene; and a peripheral lens configured to direct light of the second image toward the pupil of the user, the peripheral lens is tilted at a tilt angle relative to the central lens.

Abstract: A virtual reality display system including at least one optical alignment subsystem optically aligned with at least one eye of a subject and at least one virtual reality display device optically aligned with the at least one optical alignment subsystem for displaying to the subject at least one virtual reality object undergoing virtual motion, wherein the virtual motion of the at least one virtual reality object as viewable by the subject is operative for inducing and relaxing accommodation by the at least one eye of the subject.

Abstract: For example, a Head Mounted Display (HMD) may include a central display configured to display a first image in a central Field of View (FoV) based on an image scene to be displayed to a pupil of a user; a central lens configured to direct light of the first image toward the pupil of the user, a peripheral display configured to display a second image in a temporal FoV based on the image scene; and a peripheral lens configured to direct light of the second image toward the pupil of the user, the peripheral lens is tilted at a tilt angle relative to the central lens.

Abstract: A virtual reality display system including at least one optical alignment subsystem optically aligned with at least one eye of a subject and at least one virtual reality display device optically aligned with the at least one optical alignment subsystem for displaying to the subject at least one virtual reality object undergoing virtual motion, wherein the virtual motion of the at least one virtual reality object as viewable by the subject is operative for inducing and relaxing accommodation by the at least one eye of the subject.

Abstract: An optical magnification is disclosed. The system comprises: a structure having a frame configured to removably secure a display device thereto; and a pair of spaced apart ocular systems, mounted on the structure in front of the frame for providing a view of the display device once mounted on the frame; wherein each of the ocular systems has an aspheric optical surface and provides a prismatic refraction.

Abstract: An optical detection device is disclosed. The device comprises a photoelectric unit, configured to sense incoming photons and to produce electrical signals pertaining to at least a few of the photons within a plurality of temporally resolved time-windows; an analog-to-digital unit, configured to generate digital representation of the electrical signals; and a digital integrating unit, configured to integrate the digital representation over at least part of the temporally resolved time-windows to provide integrated data corresponding to the photons.

Abstract: An optical detection device is disclosed. The device comprises a photoelectric unit, configured to sense incoming photons and to produce electrical signals pertaining to at least a few of the photons within a plurality of temporally resolved time-windows; an analog-to-digital unit, configured to generate digital representation of the electrical signals; and a digital integrating unit, configured to integrate the digital representation over at least part of the temporally resolved time-windows to provide integrated data corresponding to the photons.

Abstract: Multi-functional optometric-ophthalmic system for testing, diagnosing, or treating, vision or eyes of a subject, and methodologies thereof. Includes: a head mountable unit, including a head mounting assembly, and at least one near eye module assembly (NEMa), mounted upon the head mounting assembly, for generating optical processes or effects which act or take place upon, and are affected by, at least one eye of the subject, and for receiving results of the optical processes or effects from the at least one eye, as part of the testing, diagnosing, or treating of the vision or eyes of the subject; and a central controlling and processing unit. Near eye module assembly includes: a micro-display (?display), a first lens assembly (L1a), and a refraction correction assembly (RCa). Generally applicable for performing a wide variety of different optometric and ophthalmic tests, diagnoses, and treatments, of a subject's vision or eyes.

Abstract: A portable system for detecting agents present in a sample is disclosed. The system comprises a sensing device, having a substrate formed with a plurality of reaction chambers and a plurality of channels interconnecting at least a portion of the plurality of reaction chambers, wherein at least a portion of the plurality of reaction chambers comprises a sensor, capable of generating a detectable signal when exposed to the agents. The system further comprises a detector, which receives signals from the sensing device and provides an image of sensors generating the optical signals. The portable system is connected to a communication network via a communication unit.

Abstract: A method of detecting the presence of harmful agents in the environment is disclosed. The method comprises: providing a plurality of portable agent detectors, placing the detectors on vectors in the environment, connecting the detectors over a communication network, and, upon detection of an agent by a first detector, signaling detectors identified as being nearby to carry out corresponding agent detection tests, thereby to confirm or localize an initial agent detection.

Abstract: A population of cells is provided. The population of cells comprising at least two subpopulations of cells, wherein a first subpopulation of the at least two subpopulation of cells includes a first reporter expression construct being expressible in a cell of the first subpopulation when exposed to a first analyte and whereas a second subpopulation of the at least two subpopulation of cells includes a second reporter expression construct being expressible in a cell of the second subpopulation when exposed to a second analyte.

Abstract: A device for detecting a presence of an analyte in a sample. The device comprises a device body configured with at least one reaction chamber configured for containing a sensor capable of producing a detectable signal when exposed to the analyte in the sample. The reaction chambers are in fluid communication with at least one sample port and at least one actuator port via a first set of microfluidic channels arranged such that application of a negative pressure to actuator port delivers fluid placed in the sample port to the reaction chambers.