Abstract: An embodiment comprises: a housing comprising a first corner part and a second corner part opposite to the first corner part; a bobbin disposed in the housing; a magnet comprising a first magnet disposed in the first corner part of the housing and a second magnet disposed in the second corner part of the housing; a coil disposed on the bobbin and opposite to the magnet; a circuit board disposed on one surface of the housing and including a position sensor; and a sensing magnet disposed in the bobbin and opposite to the position sensor, wherein a protrusion part is formed to protrude from one surface of the bobbin, opposite to one surface of the housing, toward the one surface of the housing, and the sensing magnet is at least partially placed within the protrusion part of the bobbin.

Abstract: The present disclosure discloses an optical imaging lens assembly including, sequentially from an object side to an image side along an optical axis, a first lens having negative refractive power; a second lens having refractive power; a third lens; a fourth lens having refractive power, a convex image-side surface and a concave image-side surface; a fifth lens having refractive power and a concave object-side surface; a sixth lens; and a seventh lens. Half of a diagonal length ImgH of an effective pixel area on an imaging plane of the optical imaging lens assembly satisfies: ImgH?5.20 mm.

Abstract: A blood flow measurement apparatus of an aspect example includes a scanning optical system, a front image acquiring unit, a region-of-interest determining processor, a scan controller, and a blood flow information acquiring unit. The scanning optical system applies OCT scanning to a fundus of a subject's eye. The front image acquiring unit acquires a front image of the fundus. The region-of-interest determining processor determines a region of interest that intersects a blood vessel by analyzing the front image based on a condition set in advance. The scan controller controls the scanning optical system to apply a repetitive OCT scan to the region of interest. The blood flow information acquiring unit acquires blood flow information based on data collected by the repetitive OCT scan.

Abstract: The present embodiment relates to a lens driving device comprising: a housing; a bobbin; a first coil; a magnet; a base; a first substrate; a second substrate; and a conductive member, wherein the first substrate comprises a first groove and a first terminal which is adjacent to the first groove, the second substrate comprises a second terminal, the conductive member connects the first terminal of the first substrate to the second terminal of the second substrate, a body unit of the first substrate comprises a first side surface, a second side surface, a third side surface, and a fourth side surface, an extension portion of the first substrate is formed at the third side surface and the fourth side surface, the first terminal of the first substrate comprises four terminals, two of which are adjacent to the first side surface and the other two of which are adjacent to the second side surface.

Abstract: An optical imaging lens assembly sequentially includes, from an object side to an image side along an optical axis, a first lens (E1), second lens (E2), third lens (E3), fourth lens (E4), fifth lens (E5) and sixth lens (E6) with refractive power. The first lens (E1) has a positive refractive power, and an image-side surface (S2) of the first lens is a concave surface. The second lens (E2) has a negative refractive power. The fifth lens (E5) has a negative refractive power, and an object-side surface (S9) of the fifth lens is a concave surface. A distance TTL from an object-side surface (S1) of the first lens (E1) to an imaging surface (S15) of the optical imaging lens assembly and a total effective focal length f of the optical imaging lens assembly satisfy TTL/f?0.85.

Abstract: A camera optical lens includes, from an object side to an image side: a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens. The camera optical lens satisfies conditions of ?4.00?f1/f??2.20, 1.50?f2/f?3.50, 3.00?R7/R8?8.00, 1.50?(R9+R10)/(R9?R10)?8.00, and 1.50?d8/d10?5.00. Here f denotes a focal length of the camera optical lens, f1 denotes a focal length of the first lens, f2 denotes a focal length of the second lens, R7 denotes a curvature radius of an object-side surface of the fourth lens, R8 denotes a curvature radius of an image-side surface of the fourth lens, R9 denotes an curvature radius of an object-side surface of the fifth lens, R10 denotes a curvature radius of an image-side surface of the fifth lens. The camera optical lens of the present disclosure has excellent optical performances, and meanwhile can meet design requirements of a wide angle and ultra-thin.

Abstract: A camera optical lens is provided, including from an object side to an image side: a first lens having positive refractive power, a second lens having negative refractive power; a third lens having negative refractive power, a fourth lens having positive refractive power, and a fifth lens having negative refractive power. The camera optical lens satisfies following conditions: 0.70?f1/f?0.90; ?35.00?f3/f??10.00; 4.00?R3/R4?12.00; 3.00?(R5+R6)/(R5?R6)?20.00; and 2.00?d7/d8?4.50. The above camera optical lens may meet design requirements for wide angle and ultra-thinness, while maintaining a high imaging quality.

Abstract: The disclosure provides an optical imaging lens assembly, which includes nine lenses. From an object side to an image side, the nine lenses are sequentially: a first lens with positive refractive power, a second lens with positive refractive power, of which an object-side surface thereof is a convex surface while an image-side surface is a concave surface, a third lens with refractive power, of which an object-side surface thereof is a convex surface while an image-side surface is a concave surface, a fourth lens with refractive power, a fifth lens with refractive power, a sixth lens with refractive power, a seventh lens with positive refractive power, an eighth lens with refractive power, and a ninth lens with negative refractive power. The nine lenses are independent of one another and have air spaces on an optical axis.

Abstract: The invention relates to a diffractive exit pupil expander arrangement for display applications. The arrangement comprises a first lightguide element (51) comprising an exit pupil expander (53) and arranged in a first plane and a second lightguide element (41) comprising an in-coupler (42) and arranged in a second plane. The in-coupler is optically coupled with the exit pupil expander (53). Further, the first lightguide element (51) is arranged to confine propagation of light laterally in said first plane by reflections, and the first plane and the second plane are arranged at an angle (a) with respect to each other.

Abstract: A lens drive device includes a housing; a bobbin arranged inside the housing; a magnet arranged on the bobbin; a coil arranged on the housing and facing the magnet; a coupling member arranged on the inner surface of the housing; a roller rotatably arranged on the coupling member; and a rail arranged on the bobbin. The rail is guided according to the rotation of the roller.

Abstract: The present disclosure relates to optical lens, and provides a camera optical lens including from an object side to an image side in sequence: a first lens having a positive refractive power, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, and an eighth lens; wherein the camera optical lens satisfies the following conditions: 0.95?f/TTL; ?5.00?f2/f??2.50; and 2.50?(R11+R12)/(R11?R12)?15.00. The camera optical lens can achieve good optical performance while meeting design requirements for a large aperture, a long focal length and ultra-thinness.

Abstract: The present disclosure relates to optical lens, and provides a camera optical lens including from an object side to an image side in sequence: a first lens having a positive refractive power, a second lens having a negative refractive power, a third lens having a positive refractive power, a fourth lens having a positive refractive power, a fifth lens having a negative refractive power, a sixth lens having a positive refractive power, a seventh lens having a negative refractive power, and an eighth lens having a negative refractive power; wherein the camera optical lens satisfies the following conditions: 0.95?f/TTL; ?4.00?f2/f??1.80; and 3.00?(R13+R14)/(R13?R14)?25.00. The camera optical lens can achieve good optical performance while meeting design requirements for a large aperture, a long focal length and ultra-thinness.

Abstract: A camera optical lens includes a first lens to a sixth lens. The camera optical lens satisfies: 6.50?f3/f?10.00; 1.50?(R3+R4)/(R3?R4)?3.00; 8.00?d1/d2?10.50; 1.50?d8/d7?2.00, where f denotes a focal length of the camera optical lens, f3 denotes a focal length of a third lens, R3 and R4 respectively denotes curvature radiuses of an object side surface and an image side surface of a second lens, d1 denotes an on-axis thickness of the first lens, d2 denotes an on-axis distance from an image side surface of the first lens to an object side surface of the second lens, d7 denotes an on-axis thickness of a fourth lens, and d8 denotes an on-axis distance from an image side surface of the fourth lens to an object side surface of a fifth lens. The camera optical lens has a good optical performance and meets the design requirements for a large aperture, a wide angle and ultra-thinning.

Abstract: Disclosed is a camera optical lens, comprising, from an object side to an image side in sequence: a first lens having a positive refractive power; a second lens having a negative refractive power; a third lens having a positive refractive power; a fourth lens having a positive refractive power; and a fifth lens having a negative refractive power; wherein, the camera optical lens satisfies: 12.50?f3/f?20.00; 0.30?(R3+R4)/(R3?R4)?1.00; and 0.30?d5/d6?0.50; where, f denotes a focus length of the camera optical lens; f3 denotes a focus length of the third lens; R3 and R4 denote central curvature radii of an object side surface and an image side surface of the second lens respectively; d5 denotes an on-axis thickness of the third lens; and d6 denotes an on-axis distance from the image side surface of the third lens to an object side surface of the fourth lens.

Abstract: A camera optical lens includes, from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens. The camera optical lens satisfies: ?4.50?f4/f??2.00, and 0.65?d5/d6?19.50, where f denotes a focal length of the camera optical lens, f4 denotes a focal length of the fourth lens, d5 denotes an on-axis thickness of the third lens, and d6 denotes an on-axis distance from an image-side surface of the third lens to an object-side surface of the fourth lens. The camera optical lens has a good optical performance and meet the design requirements of being ultra-thin and having a wide angle and a large apertures.

Abstract: Disclosed is a camera optical lens, comprising, from an object side to an image side in sequence: a first lens having a positive refractive power; a second lens having a negative refractive power; a third lens having a positive refractive power; a fourth lens having a positive refractive power; and a fifth lens having a negative refractive power; wherein, the camera optical lens satisfies the following conditions: 0.95?f1/f?1.15; 5.70?R7/R8?31.00; 1.05?d5/d6?2.00; and 1.25?(R9+R10)/(R9?R10)?5.00; where, f denotes a focus length of the camera optical lens; f1 denotes a focus length of the first lens; R7 and R8 denote central curvature radii of an object side surface and an image side surface of the fourth lens; R9 denotes central curvature radius of an object side surface and an image side surface of the fifth lens respectively; d5 denotes an on-axis thickness of the third lens.

Abstract: A camera optical lens is provided, including from an object side to an image side: a first lens; a second lens; a third lens; a fourth lens; a fifth lens; and a sixth lens, the camera optical lens satisfies following conditions: ?2.80?f1/f??1.20; 1.20?d9/d11?1.90; 1.20?(R7+R8)/(R7?R8)?5.00; 0.70?f2/f?1.00, where f denotes focal length of the camera optical lens; f1 denotes focal length of the first lens; f2 denotes focal length of the second lens; R7 denotes curvature radius of object side surface of the fourth lens; R8 denotes curvature radius of image side surface of the fourth lens; d9 denotes on-axis thickness of the fifth lens; d11 denotes on-axis thickness of the sixth lens. The above camera optical lens can meet design requirements for large aperture, wide angle and ultra-thinness, while maintaining good imaging quality.

Abstract: The present invention provides an optical camera lens, including, from an object side to an image side, a first lens, a second lens having a positive refractive power, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, and a ninth lens, and satisfying: 1.80?f1/f?3.20; and 2.00?d3/d4?8.00, where f denotes a focal length of the optical camera lens, f1 denotes a focal length of the first lens, d3 denotes an on-axis thickness of the second lens, and d4 denotes an on-axis distance from an image side surface of the second lens to an object side surface of the third lens. The optical camera lens meets design requirements of a large aperture, a wide angle, and ultra-thinness while having good optical performance.

Abstract: Disclosed is a camera optical lens, comprising, from an object side to an image side in sequence: a first lens having a negative refractive power; a second lens having a positive refractive power; a third lens having a positive refractive power; a fourth lens having a negative refractive power; a fifth lens having a positive refractive power; and a sixth lens having a negative refractive power; wherein, the camera optical lens satisfies: ?4.50?f1/f??2.20; 2.00?f2/f?5.50; ?20.00?(R3+R4)/(R3?R4)??2.50; and 3.00?d9/d10?10.00; where, f denotes a focus length of camera optical lens; f1 and f2 denote focus lengths of first and second lens respectively; d9 denotes an on-axis thickness of fifth lens; d10 denotes an on-axis distance from an image side surface of fifth lens to an object side surface of sixth lens; R3 and R4 denote central curvature radii of an object side surface and an object side surface of second lens respectively.