Abstract: Methods, systems, and devices for fast partial scalarization are described. A device may generate a representation of a set of vectors and a set of vector instructions associated with the set of vectors. The device may determine information associated with a vector in the set of vectors based on the representation, the information including an indication of splitting the vector and splitting one or more vector instructions associated with the vector. In some aspects, the device may associate the vector to one or more other vectors in the set of vectors based on one or more vector instructions related to the set of vectors. The device may update the information based on the associating and generate partially scalarized instructions based on the updating. The device may generate the partially scalarized instructions by excluding a subset of vector instructions and generating additional subsets of vector instructions and scalar instructions.

Abstract: The present disclosure provides a TO-CAN cap. The TO-CAN cap includes a casing, the casing has a hollow cylindrical structure, and an inner wall of the casing has a protrusion portion at a first end portion in an axial direction of the casing; and an optical lens, the optical lens has an optical portion for refracting light and a rib portion at a periphery of the optical portion, a side surface of the rib portion having a concave portion complementary to the protrusion portion, where the casing and the optical lens are connected to each other through the protrusion portion and the concave portion.

Abstract: An eyepiece and a display device are provided. The eyepiece includes: a lens component, the lens component including at least two lenses which are a first lens and a second lens; a reflective linear polarizer, arranged on a surface of the first lens or arranged on a surface of the second lens; a reflective circular polarizer, arranged on a surface of the first lens, the reflective circular polarizer being arranged on a side, far away from the image source, of the reflective linear polarizer; and a ¼? wave plate, arranged between the reflective linear polarizer and the reflective circular polarizer, the first lens having a positive refractive power or a negative refractive power, the second lens having a negative refractive power, an Abbe number Vd1 of material of the first lens being greater than and an Abbe number Vd2 of material of the second lens being less than 30.

Abstract: The present disclosure provides an ocular assembly. The ocular assembly including sequentially along an optical axis from an object side to an image side: a first lens with a positive refractive power has a convex object-side surface, and a second lens has a concave image-side surface, wherein at least one of the object-side surface of the first lens, an image-side surface of the first lens, an object-side surface of the second lens, and an image-side surface of the second lens is a Fresnel structure surface, wherein half of a maximal field-of-view HFOV of the ocular assembly satisfies: HFOV>40°, an axial distance TTL of the object-side surface of the first lens to the image plane and a total effective focal length f of the ocular assembly satisfy 1<TTL/f<1.5.

Abstract: The present disclosure discloses an optical imaging system including, sequentially from an object side to an image side along an optical axis, a first lens having a negative refractive power, and an image-side surface thereof being concave; a second lens having a refractive power; a third lens having a positive refractive power, and an object-side surface thereof being convex and an image-side surface thereof being convex; a fourth lens having a negative refractive power; a fifth lens having a refractive power, and an image-side surface thereof being convex; and a sixth lens having a refractive power, wherein half of a maximum field-of-view Semi-FOV of the optical imaging system satisfies Semi-FOV>60°; and a maximum effective radius DT12 of the image-side surface of the first lens and a maximum effective radius DT62 of an image-side surface of the sixth lens satisfy 0.5<DT12/DT62<1.

Abstract: The present disclosure provides an eyepiece and a display device including the eyepiece. The eyepiece includes a lens. The lens has a first surface and a second surface opposite to the first surface. The first surface is a corresponding surface of an eye side, and the second surface is a corresponding surface of a display element side. In addition, the first surface is a Fresnel structure surface, and the second surface is an aspheric curved surface. The Fresnel structure surface includes multiple annular sections arranged in sequence to form a serrated surface. An effective focal length EFL of the lens satisfies: 35 mm<EFL<45 mm.

Abstract: The present disclosure discloses an optical lens group including, sequentially from an object side to an image side along an optical axis, a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens. The first lens has negative refractive power; the second lens has refractive power, and an image-side surface thereof is a concave surface; the third lens has refractive power, and an image-side surface thereof is a convex surface; the fourth lens has positive refractive power, and an object-side surface thereof is a convex surface; the fifth lens has negative refractive power; and the sixth lens has refractive power. The third lens is made of glass, and a center thickness CT3 of the third lens along the optical axis and a center thickness CT4 of the fourth lens along the optical axis satisfy 1.5<CT3/CT4<2.5.

Abstract: The present disclosure provides a TO-CAN cap. The TO-CAN cap includes a casing, the casing has a hollow cylindrical structure, and an inner wall of the casing has a protrusion portion at a first end portion in an axial direction of the casing; and an optical lens, the optical lens has an optical portion for refracting light and a rib portion at a periphery of the optical portion, a side surface of the rib portion having a concave portion complementary to the protrusion portion, where the casing and the optical lens are connected to each other through the protrusion portion and the concave portion.

Abstract: The present invention provides an eyepiece. The eyepiece is composed of one lens, which comprises a first surface and a second surface that are opposite, wherein, the first surface is a curved surface, and the second surface is a Fresnel structure surface; the Fresnel structure surface is formed by a plurality of annular zones that are sequentially arranged, to form a sawtooth surface, and each of the annular zones is formed by a working surface and a non-working surface, the working surface is an aspheric surface, and the non-working surface is a straight bevel; and the eyepiece satisfies the following conditional expression: 85°<FOV<130°, and 0°??i?5°; wherein, FOV is a maximum angle of view of the eyepiece, and ?i is the angle between the non-working surface of the ith annular zone and the optical axis.

Abstract: The present disclosure discloses an optical imaging lens assembly. The lens assembly sequentially includes, from an object side to an image side along an optical axis: a first lens, a second lens, a third lens, and a fourth lens. The first lens has a positive refractive power, and a convex object-side surface; the second lens has a positive refractive power or a negative refractive power, and a concave object-side surface and a convex image-side surface; the third lens has a positive refractive power, a concave object-side surface, and a convex image-side surface; and the fourth lens has a positive refractive power or a negative refractive power. An effective focal length f1 of the first lens and a total effective focal length f of the optical imaging lens assembly satisfy: 1.2<f1/f<1.8.

Abstract: The present disclosure discloses a projection lens assembly. The projection lens assembly includes, sequentially along an optical axis from an image side to a source side, a first lens, a second lens, a third lens, and a fourth lens. The first lens has a positive refractive power, and an image-side surface of the first lens is a convex surface. The second lens has a positive refractive power or a negative refractive power, and a source-side surface of the second lens is a convex surface. The third lens has a positive refractive power. The fourth lens has a positive refractive power or a negative refractive power.

Abstract: The present disclosure provides an eyepiece and a display device including the eyepiece. The eyepiece includes a lens. The lens has a first surface and a second surface opposite to the first surface. The first surface is a corresponding surface of an eye side, and the second surface is a corresponding surface of a display element side. In addition, the first surface is a Fresnel structure surface, and the second surface is an aspheric curved surface. The Fresnel structure surface includes multiple annular sections arranged in sequence to form a serrated surface. An effective focal length EFL of the lens satisfies: 35 mm<EFL<45 mm.

Abstract: The present invention provides an eyepiece. The eyepiece is composed of one lens, which comprises a first surface and a second surface that are opposite, wherein, the first surface is a curved surface, and the second surface is a Fresnel structure surface; the Fresnel structure surface is formed by a plurality of annular zones that are sequentially arranged, to form a sawtooth surface, and each of the annular zones is formed by a working surface and a non-working surface, the working surface is an aspheric surface, and the non-working surface is a straight bevel; and the eyepiece satisfies the following conditional expression: 85°<FOV<130°, and 0°??i?5°; wherein, FOV is a maximum angle of view of the eyepiece, and ?i is the angle between the non-working surface of the ith annular zone and the optical axis.

Abstract: The present disclosure provides an ocular assembly. The ocular assembly including sequentially along an optical axis from an object side to an image side: a first lens with a positive refractive power has a convex object-side surface, and a second lens has a concave image-side surface, wherein at least one of the object-side surface of the first lens, an image-side surface of the first lens, an object-side surface of the second lens, and an image-side surface of the second lens is a Fresnel structure surface, wherein half of a maximal field-of-view HFOV of the ocular assembly satisfies: HFOV>40°, an axial distance TTL of the object-side surface of the first lens to the image plane and a total effective focal length f of the ocular assembly satisfy 1<TTL/f<1.5.