The present disclosure presents infant soothing devices which provide timed, color, and intensity controlled light and sound projections to assist in sleep therapy. The devices may be part of a smart nursery which has a number of electronically connected devices which communicate with a central electronic application to gather information and provide operation instructions to the devices. The smart nursery may be connected to a larger network to provide feedback and controllability outside of the nursery.

An irradiation optical system includes a uniformizing section and an irradiation lens section. The uniformizing section brings in-plane distribution of light emitted from a light source, close to uniform in-plane distribution. The irradiation lens section diffuses the light in a predetermined direction. The in-plane distribution of the light is brought close to the uniform in-plane distribution by the uniformizing section. The irradiation lens section includes, in order from the light source, a first cylindrical lens and a second cylindrical lens each having negative refractive power in the predetermined direction.

An irradiation optical system includes a uniformizing section and an irradiation lens section. The uniformizing section brings in-plane distribution of light emitted from a light source, close to uniform in-plane distribution. The irradiation lens section diffuses the light in a predetermined direction. The in-plane distribution of the light is brought close to the uniform in-plane distribution by the uniformizing section. The irradiation lens section includes, in order from the light source, a first cylindrical lens and a second cylindrical lens each having negative refractive power in the predetermined direction.

Provided is an elevator device, including: a cage; a car entrance frame including: entrance columns provided at a car entrance of the cage; and an entrance top plate provided on a top side of the car entrance; a car door configured to open and close the car entrance; a projector, which is provided to the car entrance frame so as to be capable of projecting information onto an image display surface provided at a landing when the car door is opened upon arrival of a car at the landing; and a control device configured to control respective operations of the car door and the projector. When the control device controls the car door to open, the control device controls the projector to project the information onto the image display surface.

Systems, apparatuses, and methods are described which provide a camera mount system. The camera mount system can include, for example, a first optical element and a second optical element. Incoming light from a scope on a weapon, for example, is partially transmitted and partially reflected by the first optical element. The partially transmitted light passes through an eyepiece to a viewer (e.g., a shooter). The partially reflected light is reflected by the second optical element and is recorded by a recording device (e.g., a camera, a video recorder, an image sensor, etc.). The viewer has direct access to the scope optics, a spotting scope, or binoculars, for example, and the camera and the viewer have access to the same view.

Systems, apparatuses, and methods are described which provide a camera mount system. The camera mount system can include, for example, a first optical element and a second optical element. Incoming light from a scope on a weapon, for example, is partially transmitted and partially reflected by the first optical element. The partially transmitted light passes through an eyepiece to a viewer (e.g., a shooter). The partially reflected light is reflected by the second optical element and is recorded by a recording device (e.g., a camera, a video recorder, an image sensor, etc.). The viewer has direct access to the scope optics, a spotting scope, or binoculars, for example, and the camera and the viewer have access to the same view.

A projector includes an outer housing, a single inner housing housed in the outer housing and including a first container and a second container, the second container housing a functional element, and a loudspeaker housed in the first container and including a frame, and the first container has a wall section extending along the frame.

A projector includes an outer housing, a single inner housing housed in the outer housing and including a first container and a second container, the second container housing a functional element, and a loudspeaker housed in the first container and including a frame, and the first container has a wall section extending along the frame.

Systems and devices for controlling camera privacy in wearable devices are described. A camera cover can be provided that is movable between a closed position and an open position. In the closed position, the camera cover can occlude a field of view of a camera, such that the camera cannot capture meaningful data. In the open position, the camera cover can be at least partially out of the field of view of the camera, such that the camera can capture meaningful data. The camera cover can be positioned within a housing of the wearable device, and an actuator can be positioned external to the housing of the wearable device. A user can move the camera cover by moving the actuator.

A refrigerator includes a cabinet forming a storage space, a main door that opens and closes the storage space while defining an opening part that is in communication with the storage space, a sub-door mounted to the main door and configured to open and close the opening part, the sub-door including a panel assembly for allowing selective viewing of an inside of the opening part, the injection port is provided at a lower side of the sub-door to direct an insulating foaming solution to a space in the sub-door, a detection device for detecting an operation of a user, a lighting unit inside the refrigerator that turns on based on user operation to allow selective viewing of the inner side of the opening part, and a display unit inside the refrigerator at a position corresponding to the panel.