A camera can perform two different photographing operations with a lens at different positions without vignetting while preventing entry of light and dust. A camera includes a frame including a film compartment to contain a photographic film and a barrel extending from the film compartment in an optical axis direction, and a lens barrel movable in the barrel in X-direction. The lens barrel includes cylinders movable frontward relative to the barrel, and a cylinder movable frontward relative to the cylinder. The camera includes a rear bellows connecting the frame and the cylinder, and a front bellows connecting the cylinder and the cylinder. In a first photographing state in which the cylinders extend frontward relative to the barrel and the cylinder is accommodated inside the cylinder, the rear bellows is expanded and the front bellows is partially contracted. In a second photographing state, the cylinder extends frontward relative to the cylinder.

A protective seal taking the form of a hollow body includes a first wall, a second wall opposite the first wall, and a section between the first wall and the second wall. The first wall has an opening and the second wall has at least one slot. The protective seal is configured so as to pass, when a force is exerted on the second wall, in a direction perpendicular to the second wall, from a rest position to a stressed position. In the rest position, at least one slot is closed. In a stressed position, at least one slot is deformed, freeing up an opening in the second wall.

A light-shielding member that moderates the contact pressure is provided. The light-shielding member reduces external light to be incident to the eyes of a user who is wearing a head-mounted display and includes an attachment portion that is attached to a housing of the head-mounted display and a light-shielding wall extending backwardly from the attachment portion. The light-shielding wall includes at least at part thereof bellows that come into contact with the periphery of the eyes of the user who is wearing the head-mounted display and are deformed to expand and contract in response to the contact pressure.

Described herein is an apparatus, for shielding light generated by a laser during non-destructive inspection of an object. The apparatus includes a light shield at least partially enveloping the laser and defining a first opening through which light generated by the laser passes from the laser to the object. The light shield is opaque and includes at least one first biasing mechanism. The apparatus also includes at least one first light seal coupled to the light shield about the first opening of the light shield. The at least one first biasing mechanism is configured to urge resilient deformation of the at least one first light seal against the object. When the at least one first light seal is resiliently deformed against the object, light generated by the laser is constrained within a light containment space defined between the light shield, the at least one first light seal, and the object.

An observation optical system unit includes a first lens which is positioned closest to an object side, among rear-group lenses, and which is configured by a stepped lens including a proximal portion, an outer circumference of which is held by a rear-group lens frame, and a protruding portion formed to have an outer circumference smaller than the outer circumference of the proximal portion and protruding into a region where a moving lens frame is allowed to advance and retract, where the moving lens frame overlaps with the protruding portion at a retracted position.

A portable folding virtual reality glasses with adjustable focus having a headband, a first supporting piece, a second supporting piece, an accordion folding piece and an eyeshade component, inner and outer sides of the headband are adhered and connected. A terminal supporting plate is provided between the front of the headband and the first supporting piece. A first supporting piece eyehole is provided at the front of the first supporting piece. When the virtual reality glasses is unfolded, the back ends of the first supporting piece extend to the eyeshade component and adhere to the eyeshade component. The inner side of the first supporting piece is provided with the second supporting piece. The accordion type folding piece is provided between the second supporting piece and the eyeshade component. The virtual reality glasses can be completely folded through the accordion type folding piece, compressing the size in the folded state to the minimum for easy carrying. The virtual reality glasses also has a reliable structure and is comfortable to wear. It can effectively avoid a light break-in and is advantageous for promotion.

A portable folding virtual reality glasses with adjustable focus having a headband, a first supporting piece, a second supporting piece, an accordion folding piece and an eyeshade component, inner and outer sides of the headband are adhered and connected. A terminal supporting plate is provided between the front of the headband and the first supporting piece. A first supporting piece eyehole is provided at the front of the first supporting piece. When the virtual reality glasses is unfolded, the back ends of the first supporting piece extend to the eyeshade component and adhere to the eyeshade component. The inner side of the first supporting piece is provided with the second supporting piece. The accordion type folding piece is provided between the second supporting piece and the eyeshade component. The virtual reality glasses can be completely folded through the accordion type folding piece, compressing the size in the folded state to the minimum for easy carrying. The virtual reality glasses also has a reliable structure and is comfortable to wear. It can effectively avoid a light break-in and is advantageous for promotion.

Provided is a lens module, including a lens barrel and a lens group. The lens barrel includes a first barrel wall and a second barrel wall. The lens group at least include a first lens and a second lens. The first barrel wall has an image-side surface, including a first planar surface horizontally extending from a joint between the first barrel wall and the second barrel wall towards an optical axis, a protruding portion connected to the first planar surface and protruding towards the first lens, and a second planar surface horizontally extending from the protruding portion towards the optical axis. The first lens has a first peripheral portion, including a third planar surface, a recess portion connected to the third planar surface and a fourth planar surface connected to the recess portion. The protruding portion is attached to the recess portion.

A virtual reality cell phone includes: a main body including a display; an ocular plate configured to maintain a variable distance from the rear surface of the main body; and a screen and distance adjustment member interposed between the main body and the ocular plate, and configured to move the ocular plate between a retracted state in which the ocular plate comes into close contact with the main body and an extended state in which the ocular plate maintains a predetermined distance from the main body. The screen and distance adjustment member includes a plurality of screen boxes configured to slide backward and be fixed while being laid over each other.

The present embodiment relates to a sensor driving apparatus comprising: a first substrate including a first opening; a support member arranged at a position corresponding to the first opening; a first connector for electrically connecting the support member and the first substrate and elastically supporting the support member; a base coupled to the support member; a second substrate arranged on the base; an image sensor mounted on the second substrate; a second connector which is arranged on the base and electrically connects the second substrate and the first connector; a first driving unit arranged on the first substrate; and a second driving unit arranged on the base and facing the first driving unit.