An imaging lens module includes at least one plastic lens element having an optical axis, an object side and an image side. The plastic lens element includes, in order from a center to a peripheral region thereof, an optical effective portion and an outer peripheral portion. The outer peripheral portion surrounds the optical effective portion, wherein the outer peripheral portion includes, on at least one of the object side and the image side, a plurality of groove structures and a contacting surface. The contacting surface is an annular plane and perpendicular to the optical axis. The groove structures and the contacting surface are located on the same side. There is an air gap between the groove structures and at least one optical element adjacent thereto. The groove structures and the contacting surface located on the same side are not overlapped along a direction parallel to the optical axis.

A driving mechanism is provided, including a base, a movable module, and a driving assembly. The movable module has a movable member and a connecting member connected to the movable member. The driving assembly is connected to the base and the connecting member. The driving assembly has a driving element that generates a driving force to the connecting member and the movable member, so that the movable module moves relative to the base.

A lens mount includes a cover member and a holder. The cover member has a first opening corresponding to a first optical system of a lens apparatus and has a second opening corresponding to a second optical system of the lens apparatus. The holder holds a filter to cover the first opening and the second opening. The holder includes a first holder disposed on one side with respect to the first and second openings in a direction orthogonal to an arrangement direction of the first and second openings, and a second holder disposed on the other side with respect to the first and second openings in the direction orthogonal to the arrangement direction. A groove portion is formed between the cover member and the holder, and the filter is insertable into the groove portion.

A laser projection module is provided. The laser projection module includes a substrate assembly, a lens barrel assembly, a light source, a diffractive optical element and a collimation element. The lens barrel assembly includes a lens barrel and a stop member connected to the lens barrel. The lens barrel is disposed on the substrate assembly and configured to define a receiving cavity together with the substrate assembly. The light source is disposed on the substrate assembly, accommodated in the receiving cavity, and configured to emit laser to the receiving cavity. The diffractive optical element and the collimation element are accommodated in the receiving cavity. The light source, the collimation element and the diffractive optical element are sequentially disposed in an optical path of the light source. The stop member is configured to prevent the diffractive optical element from moving in a light-emitting direction of the laser projection module.

A lens unit includes a positive lens element provided with a convex surface on an incident surface and/or an exit surface; and a lens frame supporting the lens element and being provided with a projection that projects in an inner radial direction from inside the lens frame. The lens frame supports the lens element with the projection fixedly fitted into an outer peripheral portion of the lens element. The projection is provided, on an inner peripheral portion thereof, with a first surface positioned on an incident side in an optical axis direction, a second surface positioned on an exit side in the optical axis direction, and a third surface positioned between the first surface and the second surface. The first, second and third surfaces are tapered surfaces that are respectively inclined relative to the optical axis direction. A method of manufacturing the lens unit is also provided.

The present invention relates to a camera lens spacer which is adapted to prevent flare effects due to light reflection. The present invention provides a camera lens spacer which is inserted between lenses and comprises a base material made of copper or a copper alloy and having a predetermined thickness, wherein the base material includes: a through-etched area passing therethrough in the thickness direction at the center thereof; and a half-etched area having a predetermined width along the outer circumference of the through-etched area.

An interchangeable lens is removably attached to a camera body including a body-side mount, an image sensor, body-side terminals and a first to fourth body-side claws. The interchangeable lens includes the lens-side mount, lens-side terminals which are in contact with body-side terminals, a first to fourth lens-side claws engaged with the first to fourth body-side claws once the interchangeable lens is attached to the camera body. The first and third lens-side claws are disposed on a third lens-side line intersecting with the first lens-side line at an optical axis with approximately 45 degrees. The first lens-side line passes through a center between opposite ends of the first lens-side claw to the optical axis. The second and fourth lens-side claws are disposed on a fourth lens-side line orthogonal to the third lens-side line at the optical axis.

A lens apparatus attachable to an imaging apparatus via an accessory, the lens apparatus includes an acquirer configured to acquire first power information indicating power available for the accessory, a determiner configured to determine second power information indicating power available for the lens apparatus based on the first power information, and a transmitter configured to transmit, to the imaging apparatus, the second power information or power information relating to the first power information and the second power information.

An imaging device includes a lens barrel in which a plurality of lenses are held and that has a thread groove in a cylindrical outer periphery thereof; an imaging element that captures a subject image incident on the imaging element through the lenses; a housing that holds the imaging element and that includes a threaded portion configured to engage with the thread groove in the outer periphery of the lens barrel; and an adhesive member positioned between the thread groove in the outer periphery of the lens barrel and the threaded portion of the housing. The thread groove is provided in a range including a position at which a principal plane of an optical system including the plurality of lenses crosses the outer periphery of the lens barrel.

A lens housing, a lens module and a light source system are disclosed. The lens housing includes a lens holder, a leans barrel, and a fixed pressing plate. The lens holder includes an accommodating cavity having an internal thread. The lens barrel is provided with a receiving cavity along an axial direction and includes an adjustment structure along a circumferential direction. An outer circumferential wall of the lens barrel is provided with an external thread matching the internal thread. The lens barrel is embedded in the accommodating cavity of the lens holder and is in threaded connection with the lens holder. The fixed pressing plate is fixed to one side of the lens barrel away from the lens holder and is capable of moving axially relative to the lens holder.