The invention relates to an optical system for restoring a natural image combined with a digital image, in order to characterise and highlight the objects represented on the natural image. The optical system includes an objective lens, an eyepiece, a semi-reflective plate, a processing unit, capturing means and restoring means. The invention also relates to a method for producing such a digital image.

The invention relates to an optical system for restoring a natural image combined with a digital image, in order to characterise and highlight the objects represented on the natural image. The optical system includes an objective lens, an eyepiece, a semi-reflective plate, a processing unit, capturing means and restoring means. The invention also relates to a method for producing such a digital image.

The invention relates to an optical system for restoring a natural image combined with a digital image, in order to characterise and highlight the objects represented on the natural image. The optical system includes an objective lens, an eyepiece, a semi-reflective plate, a processing unit, capturing means and restoring means. The invention also relates to a method for producing such a digital image.

Provided is a quick-responsive voice control technique even in use in a planetarium. A control device (100) of a projector (308) of a planetarium includes: a storage unit (304) that stores a plurality of commands for controlling the projector (308), flags indicating whether or not the respective commands can be executed, and keywords associated with the respective commands; a voice acquisition unit (301) that acquires voice data; a control unit (201) that controls the control device; and a communication unit (207) that communicates with the projector (308). The control unit (201) determines whether or not each of the commands for the projector (308) can be executed on the basis of state information of the projector (308), the state information being acquired through the communication unit (207), updates the flags on the basis of the determination result, generates character suing information from voice data acquired by the voice acquisition unit (301), acquires a command in which an executable flag is set from the storage twit (304) using the character string information as a search key, and transmits the acquired command to the projector (308).

An optical system for restoring a natural image combined with a digital image, in order to characterise and highlight the objects represented on the natural image. The optical system includes an objective lens, an eyepiece, a semi-reflective plate, a processing unit, capturing capabilities and restoring capabilities. Other embodiments relate to a method for producing such a digital image.

An optical system for restoring a natural image combined with a digital image, in order to characterise and highlight the objects represented on the natural image. The optical system includes an objective lens, an eyepiece, a semi-reflective plate, a processing unit, capturing capabilities and restoring capabilities. Other embodiments relate to a method for producing such a digital image.

A starry sky reproducing device contains: a ceiling section an inner surface of which has a semi-spherical surface on which a starry sky can be projected; a wall section which has a nearly vertical wall surface contiguous to a lower end section of the semi-spherical surface of the ceiling section; a floor section on which the wall section is installed; starry sky projection means for projecting a starry sky on the semi-spherical surface of the ceiling section, the starry sky projection means being installed near a center of the floor section and near a center of the semi-spherical surface of the ceiling section; a plurality of seats which are installed on the floor section; one or more partial starry sky reproducing means for reproducing details of a part of a starry sky, the partial starry sky reproducing means being installed between the seats and the wall surface, preferably at positions in a proximity of the wall surface; and one or more telescopes through which a detailed image of a part of a starry sky which the partial starry sky reproducing means reproduces can be observed, the telescopes being installed at positions between the seats and the wall surface opposing the partial starry sky reproducing means across the starry sky projection means.

A starry sky reproducing device contains: a ceiling section an inner surface of which has a semi-spherical surface on which a starry sky can be projected; a wall section which has a nearly vertical wall surface contiguous to a lower end section of the semi-spherical surface of the ceiling section; a floor section on which the wall section is installed; starry sky projection means for projecting a starry sky on the semi-spherical surface of the ceiling section, the starry sky projection means being installed near a center of the floor section and near a center of the semi-spherical surface of the ceiling section; a plurality of seats which are installed on the floor section; one or more partial starry sky reproducing means for reproducing details of a part of a starry sky, the partial starry sky reproducing means being installed between the seats and the wall surface, preferably at positions in a proximity of the wall surface; and one or more telescopes through which a detailed image of a part of a starry sky which the partial starry sky reproducing means reproduces can be observed, the telescopes being installed at positions between the seats and the wall surface opposing the partial starry sky reproducing means across the starry sky projection means.

A lamp projecting a starry sky is provided. The lamp projecting the starry sky includes at least one beam generator, a reflecting member with uneven and irregular reflecting surface, a first motor, and at least one first lens. The first motor is connected to the reflecting member through a connecting shaft, the reflecting member is driven to rotate when the first motor rotates, a light beam generated by the beam generator irradiates onto a first side of the reflecting member along an incident light path, and a light beam emitted from the reflecting member forms a moving and layering nebula projection after passing through the at least one first lens. In the lamp, after passing from the reflecting member, the light beam is magnified by the lens, so that the generated starry sky will not be too bright and dazzling, which effectively enhances the layering sense of the starry sky.

The invention relates to an optical system for restoring a natural image combined with a digital image, in order to characterise and highlight the objects represented on the natural image. The optical system includes an objective lens, an eyepiece, a semi-reflective plate, a processing unit, capturing means and restoring means. The invention also relates to a method for producing such a digital image.