An alignment system may comprise a housing defining a channel having a first end and a second end; a light source disposed at the first end of the channel; and an alignment image disposed at the second end of the channel. The light source may be in optical communication with the alignment image. The alignment system may further comprise a baffle extending around at least a portion of an inner perimeter of the channel, the baffle defining a backlight aperture. The light source may be in selective optical communication with the alignment image.

The present disclosure provides a line recognition module, a fabricating method thereof and a display device. A better collimating effect may be achieved only by fabricating an optical sensing structure on a substrate in the line recognition module and then directly fabricating at least two light shading layers and a light transmitting layer with relatively simple structures, and the device structure is light and thin, which can reduce the difficulty of processing the device. The problem that the yield is affected due to blistering caused by attaching a collimating structure to the line recognition module with use of an optically clear adhesive (OCA) is avoided. Moreover, since film layers are fabricated directly on the optical sensing structure to form the collimating structure, fabrication of the collimating structure may be accomplished by using a generic device for fabrication of the film layers on an array substrate without adding new fabrication equipment.

An optical lens assembly includes five lens elements and provides a TTL/EFL < 1.0. In an embodiment, the focal length of the first lens element f1 < TTL/2, an air gap between first and second lens elements is smaller than half the second lens element thickness, an air gap between the third and fourth lens elements is greater than TTL/5 and an air gap between the fourth and fifth lens elements is smaller than about 1.5 times the fifth lens element thickness. All lens elements may be aspheric.

A driving mechanism is provided, including a base, a movable unit, and a movable part. The movable unit is movably disposed on the base and connected to an optical element. The movable part is movably disposed on the base and forms a passage. When the movable part moves from a first position to a second position relative to the base, the movable unit slides through the passage from an initial position to a limit position relative to the base.

An electronic device includes: a display panel having an active region and a peripheral region adjacent to the active region; an electronic module disposed below the display panel; a first light-blocking element disposed on the display panel and overlapping the peripheral region; and a second light-blocking element disposed on the electronic module with the display panel interposed therebetween. A hole is at least partially surrounded by the active region is defined in a portion of the display panel. The second light blocking element is disposed in an area adjacent to the hole, when viewed in a plan view. The first light-blocking element has a first thickness and the second light-blocking element has a second thickness less than the first thickness.

A light-shielding element, including an object-side mechanical surface facing an object side, an image-side mechanical surface facing an image side, an inner-side surface facing an optical axis, and an outer-side surface facing away from the inner-side surface. The light-shielding element further includes at least one cut. The at least one cut extends from the inner-side surface toward the outer-side surface and penetrates the object-side mechanical surface and the image-side mechanical surface. The inner-side surface surrounds the optical axis and forms a through hole. A contour of the through hole has a shortest distance D1 passing through the optical axis and a longest distance D2 passing through the optical axis. The light-shielding element satisfies the following conditional expression: 1.200≤D2/D1≤3.000. An optical imaging lens is also provided.

The zoom lens includes a positive first lens group, a negative second lens group, a positive third lens group, a negative fourth lens group, a negative fifth lens group, and a positive sixth lens group in order from an object side. All distances between adjacent lens groups change during zooming. The first lens group consists of a negative lens, a positive lens, and a positive lens in order from the object side. Only the fourth lens group moves to an image side during focusing from a long range to a short range. Conditional Expression related to a distance from a lens surface of the first lens group closest to the object side to an image plane and a distance from a lens surface of the second lens group closest to the object side to the image plane is satisfied.

A zoom lens includes a negative first lens group, a positive second lens group, and a subsequent lens group in order from an object side. A focusing lens group closer to an image side than the first lens group moves during focusing. The first lens group consists of a first-a lens group and a first-b lens group in order from the object side. Assuming that an average of refractive indices of the negative lenses of the first-a lens group is Nd1ave, a focal length of the focusing lens group is ff, and a focal length of the first lens group is f1, Conditional Expression (1) of 1.73<Nd1ave<1.95 and Conditional Expression (2) of 1<|ff/f1|<3 are satisfied.

An optical lens assembly includes a lens barrel and an optical lens group. The lens barrel includes a light entering hole, which is configured for allowing a light to enter the lens barrel. The lens barrel accommodates the optical lens group, and an optical axis passes through the optical lens group. The optical lens group includes a plurality of lens elements and at least one light blocking sheet. The light blocking sheet is an opaque sheet-shaped element and surrounds the optical axis to form a light passing hole. The light blocking sheet includes an object-side surface and an image-side surface, and the object-side surface is located more adjacent to the light entering hole than the image-side surface thereto. A first film layer is disposed on the object-side surface.

The present disclosure provides a dynamic framing system for shaping a light beam. The framing system comprises a first shutter system comprising a first blade and a second blade, a second shutter system comprising a third blade and a fourth blade, and a blade divider forming an aperture. The first shutter system and the second shutter system are arranged on opposite sides of the blade divider. Each blade constitutes an intermediate bar in a five-bar linkage between two sets of outer bars, each set comprising a motorized bar and a passive bar. At least one of the motorized bars has a length being larger than a diameter of the aperture.