An optical imaging lens may include a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element, a seventh lens element, an eighth lens element and a ninth lens element positioned in an order from an object side to an image side. Through designing concave and/or convex surfaces of the lens elements, the optical imaging lens may increase resolution, enlarge aperture stop and image height, and maintain well image quality.

An optical imaging lens may include a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element, a seventh lens element, an eighth lens element and a ninth lens element positioned in an order from an object side to an image side. Through designing concave and/or convex surfaces of the lens elements, the optical imaging lens may increase resolution, enlarge aperture stop and image height, and maintain well image quality.

An optical imaging lens may include a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element, a seventh lens element, an eighth lens element and a ninth lens element positioned in an order from an object side to an image side. Through designing concave and/or convex surfaces of the lens elements, the optical imaging lens may increase resolution, increase aperture stop and image height, and maintain well image quality.

An optical imaging lens includes a first lens element to a ninth lens element from an object side to an image side along an optical axis and each lens element has an object-side surface and an image-side surface. A periphery region of the object-side surface of the fourth lens element is concave, an optical axis region of the image-side surface of the fourth lens element is convex, an optical axis region of the object-side surface of the seventh lens element is concave, an optical axis region of the image-side surface of the eighth lens element is concave, and an optical axis region of the object-side surface of the ninth lens element is concave. Lens elements included by the optical imaging lens are only nine lens elements described above. An Abbe number of the fifth lens element ν5 and an Abbe number of the ninth lens element ν9 satisfy ν5+ν9≤100.000.

In a general aspect, a wearable display system includes a microlens array projector including a plurality of elemental microlens relays (EMRs). Each EMR of the plurality of EMRs includes a microLED microdisplay including a plurality of pixels, and is configured to generate a subset of light associated with an image. Each EMR also includes a microlens configured to receive the subset of light from the microdisplay. The system also includes a lightguide, an incoupling element optically coupled with the lightguide, and an outcoupling element optically coupled with the lightguide. The microlens is configured to relay the subset of light to the incoupling element. The incoupling element is configured to incouple the subset of light into the lightguide. The outcoupling element is configured to outcouple portions of the subset of light at a plurality of respective locations along the lightguide, where outcoupled light of the plurality of EMRs represents the image.

An optical element driving mechanism is provided and includes a fixed assembly, a movable assembly, and a driving assembly. The movable assembly is configured to be connected to an optical element and is movable relative to the fixed assembly. The driving assembly is configured to drive the movable assembly to move along a first axis relative to the fixed assembly.

An optical system includes a first lens having negative refractive power and having two concave surfaces, a second lens having positive refractive power, a third lens having refractive power, a fourth lens having refractive power, a fifth lens having refractive power, a sixth lens having refractive power, and a seventh lens having refractive power. The first to seventh lenses are sequentially disposed from an object side.

An optical system includes a first through six lenses. The first lens includes a positive refractive power. The second lens includes a negative refractive power. The third lens includes a positive refractive power. The fourth lens includes a negative refractive power and the fifth lens includes a negative refractive power. The sixth lens includes a positive refractive power and an inflection point formed on an image-side surface thereof and 70<FOV is satisfied, where FOV is a field of view of the optical system.

The present disclosure discloses an imaging lens assembly. Sequentially from an object side to an image side along an optical axis, the imaging lens assembly includes a first lens having a positive refractive power; a second lens having a negative refractive power, and both an object-side surface and an image-side surface thereof being concave surfaces; a third lens having a positive refractive power, and an image-side surface thereof being a convex surface; a fourth lens having a negative refractive power, and an object-side surface thereof being a concave surface; a fifth lens having a refractive power; and a sixth lens having a refractive power. A total effective focal length f of the imaging lens assembly and half of a diagonal length ImgH of an effective pixel area on an imaging plane of the imaging lens assembly satisfy 2.0≤f/ImgH≤3.0.

Provided an imaging apparatus including a first optical device, a second optical device disposed such that light transmitted through the first optical device is incident on the second optical device, and a third optical device disposed such that light transmitted through the second optical device is incident on the third optical device, wherein at least one of the first optical device, the second optical device, and the third optical device includes a plurality of nanostructures, and heights of at least two nanostructures of the plurality of nanostructures are different from each other.