A scanning light imaging device for continuously pseudo randomly scanning patterns of light in a beam onto a remote surface to achieve spatio-temporal super resolution for finding remotely located objects. The scanning light imaging device employs a scanner to project image beams of visible or non-visible light and/or tracer beams of non-visible light onto a remote surface or remote object to detect reflections. The device employs a light detector to sense at least the reflections of light from one or more of the image beams or the tracer beams incident on the remote surface or remote object. The device employs the sensed reflections of light beams to predict the trajectory of subsequent scanned beams in a pseudo random pattern and determine up to a six degrees of freedom position for the remote surface or remote object.

One embodiment according to the technique of the present disclosure provides a projection device having a plurality of modes in which relationships between an incidence region and an emission region in an electro-optical panel are different from each other. In the projection device according to one aspect of the present invention, a control unit controls a first mode and a second mode. The first mode is a mode in which a first range of an optical region is the incidence region and a range within the first range is the emission region, and the second mode is a mode in which a second range narrower than the first range of the optical region is the incidence region and a range within the second range is the emission region.

A laser point projecting device including a light source assembly that projects first and second positioning points respectively along two directions of a straight line. The laser point projecting device includes a housing part forming a sleeve around a body part. The body part and the housing part are displaceable relative to each other. The light source assembly is switched off when the body part is displaced to a first position along the direction of projecting the first positioning point; and the light source assembly is activated when the body part is displaced to a second position along the direction of projecting the second positioning point. The housing part has at least one opening at the end along the direction of projecting the first positioning point, and a hollow space formed between the end of the housing part close to the first positioning point and the body part.

A projector according to an aspect of the present disclosure includes a light source apparatus, an image generator, an optical path changer, and a projection optical apparatus. The image generator includes a light modulator that modulates the light emitted from the light source apparatus in accordance with image information to generate the image light, and a first holder that holds the light modulator. The optical path changer includes an optical part that the image light outputted from the image generator enters, an optical support section that pivotably supports the optical part, and a second holder that holds the optical support section. The projection optical apparatus includes a projection system that the light emitted from the optical path changer enters, and a third holder that holds the projection system. The first and second holders are fixed to the third holder.

The present disclosure discloses a projection lamp for projecting a nebula and a starry sky comprising a housing, a light source assembly, a laser assembly, a rotating assembly, a control board, a base seat, and a power source port. The light source assembly and the laser assembly are disposed in the housing and penetrate through the housing, and the rotating assembly and the control board are disposed in the housing. The rotating assembly is configured to drive a rotating optical sheet and a diffraction sheet to rotate. The light source assembly comprises a light source board, a light reflecting cup, a fixed optical sheet, the rotating optical sheet, and a lens assembly. The light source board, the light reflecting cup, the fixed optical sheet, the rotating optical sheet, and the lens assembly are successively disposed along a path in which light rays emitted by the light source board move.

A projecting apparatus and a projecting method, relates to the field of projecting technologies. The projecting apparatus includes: a light source (1), a projection film (2) and a lens (3), wherein the projection film (2) and the lens (3) are both located in a light path of the light source (1), a focal length of the lens (3) is greater than 0, and a positional relationship between the light source (1) and the lens (3) satisfies a formula: $0\le E\le {\left(\frac{216}{D}\right)}^{0.8},$
wherein E is a distance between the light source and the lens in centimeters; D is the focal length of the lens in centimeters, which solves the technical problem of high costs of 3D protection in the prior art, and can project a pattern on the projection film into a three-dimensional stereo image.

A light source system includes an exciting light source, a collection system, a wavelength conversion device, a relay system, an optical-mechanical system, a detection device, and a distance adjustment device. The exciting light source emits exciting light. The conversion region converts the exciting light into excited light. Optical axes of the excited light and the exciting light that are emitted from the wavelength conversion device do not coincide with each other. The excited light and exciting light collected by the collection system are guided to the optical-mechanical system via the relay system. The detection device detects information on brightness and/or color coordinates of the light emitted from the optical-mechanical system. The distance adjustment device adjusts a distance between the collection system and the wavelength conversion device in such a manner that the brightness and/or color coordinates of the light emitted from the optical-mechanical system meet a preset condition.

A reflective dynamic projector includes a light projection device. The light projection device includes a reflective element with a reflective surface, a plurality of first light sources, and a first driving unit. There are bump textures arranged on the reflective surface which make the reflective surface to be a diffuse reflection surface. The reflective surface surrounds the plurality of first light sources and each of the plurality of first light sources is arranged towards the reflective surface; or an outer surface of the reflective element is the reflective surface, the plurality of first light sources surrounds the reflective element, and each of the plurality of first light sources is arranged towards the reflective surface. The first driving unit is connected with the reflective element or the plurality of first light sources and drives the reflective element or the plurality of first light sources to rotate.

When a camera detects light which satisfies a first condition and with which a projection surface is irradiated by a pointing apparatus in captured images formed by capturing the projection surface, the camera selects at least one of a plurality of control points as a control point in a selected state based on the position of the light which satisfies the first condition in the captured images, whereas when the camera detects light which satisfies a second condition different from the first condition and with which the projection surface is irradiated by the pointing apparatus in the captured images, the camera transmits an instruction to change the position of the control point in the selected state to a projector based on a change in the position of the light which satisfies the second condition and is detected in the captured images.

A scanning light imaging device for continuously pseudo randomly scanning patterns of light in a beam onto a remote surface to achieve spatio-temporal super resolution for finding remotely located objects. The scanning light imaging device employs a scanner to project image beams of visible or non-visible light and/or tracer beams of non-visible light onto a remote surface or remote object to detect reflections. The device employs a light detector to sense at least the reflections of light from one or more of the image beams or the tracer beams incident on the remote surface or remote object. The device employs the sensed reflections of light beams to predict the trajectory of subsequent scanned beams in a pseudo random pattern and determine up to a six degrees of freedom position for the remote surface or remote object.