Softbox
OwnerStefan Karleinventor
Life of this patent
Estimating the term…
Abstract
A softbox for a spotlight includes a device for mounting the softbox to the spotlight such that in operation, the spotlight shines through the softbox. For limiting the emerging angle of the light shining through the softbox, a light control grid is mounted at the light emitting aperture of the softbox. For mounting the light control grid to the light emitting aperture of the softbox, a frame surrounds the light emitting aperture of the softbox. The control grid for being mounted to the softbox is manufactured by fixing adjacent strips of a light absorbing material to one another.
Claims20
A control grid configured to be positioned at a light emission aperture of a light source, said control grid comprising:
- a side-by-side array of flexible strips of light-absorbing material which can be urged, from a collapsed configuration, into an expanded circumferential configuration defining an exterior of the strip array and an interior of the strip array, which strip array delimits light-transmitting cells such that light emanating from the light source, at an angle of at least 20 degrees from a central axis of such light emission source, impinges on the light-absorbing material;
- and
- a collapsible supporting structure extending about the exterior of the strip array, said supporting structure being configured to releasably attach the flexible strip array to an enclosure of the light emission aperture of such light emission source, said supporting structure comprising a plurality of side members, said side members being effectively connected to each other, said side members being collectively resiliently biased toward a configuration which corresponds to the expanded configuration of said strip array, and being collectively resiliently deflectable to accommodate the collapsed configuration of said strip array.
A control grid configured to be positioned at a light emission aperture, said control grid comprising:
- a side-by-side array of flexible strips of light-absorbing material, which strip array delimits light-transmitting cells such that light emanating from the light source, at an angle of at least 20 degrees from a central axis of such light source, impinges on the light-absorbing material;
- and
- a supporting structure configured to releasably attach the flexible strip array to an enclosure of the light emission aperture of such light source, said supporting structure further including a tensioning device configured to urge said control grid into a circumferential shape corresponding to a circumferential shape of such light emission aperture of such light source, wherein said tensioning device comprises at least one transversely bent strip acting as a leaf spring.
Dependencies are inferred from the claim text.