The disclosure provides an optical lens, a camera module and a camera. The optical lens, from an object side to an image side along an optical axis, sequentially includes a stop, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a filter. The optical lens meets the expression of: SAG8D.sub.0.5SAG8D.sub.1>0.35, where SAG8D.sub.0.5 represents a sagittal height at a position corresponding to half a diameter of an image side surface of the fourth lens, and SAG8D.sub.1 represents a sagittal height at a position corresponding to the diameter of an image side surface of the fourth lens.

The invention discloses an optical imaging lens and imaging equipment. The optical imaging lens sequentially comprises, from an object side to an imaging surface along an optical axis, a first lens having negative focal power and with the object side surface to be a convex surface and the image side surface to be a concave surface, a second lens having negative focal power and with the object side surface to be a concave surface and the image side surface to be a convex surface, a third lens having positive focal power and with both the object side surface and the image side surface to be convex surfaces, a diaphragm, a fourth lens having positive focal power and with both the object side surface and the image side surface to be convex surfaces, a fifth lens having positive focal power and with both the object side surface and the image side surface to be convex surfaces, a sixth lens having negative focal power and with both the object side surface and the image side surface to be concave surfaces, and forming a cemented lens group with the fifth lens, and a seventh lens having positive focal power and with both the object side surface and the image side surface to be convex surfaces. The optical imaging lens provided by the invention has the characteristics of ultrahigh resolution, good thermal stability, large imaging surface and convenience in assembly.

A head-mounted display including an image generator, a projection lens, and a waveguide is provided. The image generator is configured to provide an image beam. The projection lens is disposed on a path of the image beam. The projection lens has an image side and an object side. The image generator is configured at the image side. The projection lens includes a first lens element and a lens element group. The lens element group is disposed between the image generator and the first lens element. A first central axis of the first lens element and a second central axis of the lens element group are not overlapped. The waveguide is disposed on the path of the image beam and located at the object side of the projection lens.

Disclosed is a small lens system including a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens sequentially arranged from an object, wherein the first lens has a refractive power (P1) satisfying −0.01<P1<0.01, the second lens has a refractive power (P2) satisfying 0.4<P2, the third lens has a negative refractive power, the third lens having a curvature (C6) of an image-side surface satisfying −0.01<C6<0.01, the fourth lens has a refractive power (P4) satisfying −0.1<P4<0.1, the fifth lens has a refractive power (P5) satisfying 0.7<P5, the sixth lens has a refractive power (P6) satisfying P6<−0.7, and the total optical path length (TOPL) of the lens system and an image height (Himg) satisfy TOPL/Himg<1.8.

An optical image capturing lenses includes, in order from an object side to an image side, a front lens group, a stop, and a rear lens group. The front lens group includes, in order from the object side to the image side, at least a first lens element and a second lens element. The first lens element has a convex object-side surface and a concave image-side surface. The rear lens group includes, in order from the object side to the image side, at least a third lens element, a fourth lens element, a fifth lens element, and a sixth lens element. The sixth lens element is made of plastic material. The object-side surface and the image-side surface of the sixth lens are aspheric. The sixth lens element has at least one inflection point formed on at least one of the object-side surface and the image-side surface thereof.

An imaging lens includes a first lens; a second lens; a third lens; a fourth lens; a fifth lens; a sixth lens; a seventh lens; an eighth lens having positive refractive power; and a ninth lens, arranged in this order from an object side an image plane side. The imaging lens has a total of nine lenses. The first lens is formed in a shape so that a surface thereof on the image plane side has an aspherical shape. The ninth lens is formed in a shape so that a surface thereof on the image plane side has an aspherical shape.

An optical lens assembly, including a first lens element, a second lens element, a third lens element, a fourth lens element, and a fifth lens element sequentially along an optical axis from a first side to a second side, is provided. The optical lens assembly satisfies the conditional expression of D34/D12≥2.600. Furthermore, other optical lens assemblies are also provided.

An optical imaging lens includes a first, a second, a third, a fourth, a fifth, a sixth, a seventh and an eighth lens elements from an object side to an image side in order along an optical axis. The eight lens elements are the only lens elements having refracting power in the optical imaging lens. The optical imaging lens satisfies: (T1+T2+T3)/(G23+G34)≥2.700, wherein T1 is a thickness of the first lens element along the optical axis, T2 is a thickness of the second lens element along the optical axis, T3 is a thickness of the third lens element along the optical axis, G23 is an air gap from the second lens element to the third lens element along the optical axis, and G34 is an air gap from the third lens element to the fourth lens element along the optical axis.

A photographing lens assembly includes a total of eight lens elements which are, in order from an object side to an image side: 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 and an eighth lens element. The first lens element with positive refractive power has an object-side surface being convex in a paraxial region thereof. The second lens element has negative refractive power. The eighth lens element with negative refractive power has an object-side surface being concave in a paraxial region thereof. At least one lens element of the photographing lens assembly has at least one lens surface having at least one inflection point.

A wide-angle lens includes a front group, an aperture, a rear group, and an infrared cut filter. The front group includes a first lens and a second lens arranged in order from a side closest to an object to an image side. In the wide-angle lens, an anti-reflection layer having a reflectance of 1.5% or less in a wavelength range from nm to 850 nm is provided on a lens surface of the first lens on the image side to suppress an occurrence of a ghost caused by light passing through a peripheral portion of the lens surface. Therefore, even if a film forming the anti-reflection layer is thinner than an appropriate value at the peripheral portion of the lens surface, the anti-reflection layer appropriately prevents reflection of light in a long wavelength range.