Patent ID: 7530701

Claim:
A light diffusion arrangement for a photographic device having a flashlight, comprising: a diffuser housing having a base portion for mounting with said flashlight of said photographic device, and a light-admissible surrounding sidewall extended from said base portion to define a light diffraction cavity within said base portion and said surrounding sidewall; a plurality of diffracting mesh members formed on an inner side surface of said surrounding sidewall of said diffuser housing, wherein each of said diffracting mesh members is adapted to diffract light impinging thereon to a predetermined direction within said light diffraction cavity for forming corresponding diffracted light; and a plurality of light diffusing elements formed on an outer side surface of said surrounding sidewall of said diffuser housing, wherein said diffracted light is arranged to impinge on said light diffusing elements from said light diffraction cavity, in such a manner that each of said light diffusing elements is adapted to diverge said diffracted light for diffusing said diffracted light, so as to provide a uniform light diffusion effect as an optimal lighting effect for said photographic device, wherein said base portion of said diffuser housing has a base opening for mounting said flashlight such that light generated by said flashlight is allowed to pass though said light diffraction cavity for being diffracted and diffused by said diffracting mesh members and said light diffusing elements respectively, wherein said light-admissible surrounding sidewall is integrally and radially extended from the base portion to form the light diffraction cavity, wherein said surrounding sidewall forms a circular cross section of said diffuser housing for matching with a spherical propagation of said light coming from said flashlight, wherein said diffracting mesh members are integrally protruded from said inner side surface of said surrounding sidewall, wherein each of said diffracting mesh members is extended along said surrounding sidewall in a cross manner to form a corresponding number of diffraction squares surrounded by four corresponding diffracting mesh members, such that when said light coming from said flashlight impinges on said diffracting mesh members, said light is diffracted, and then partially reflected back to said light diffraction cavity for further diffraction, while a remaining portion of light passes through said surrounding sidewall and reaches said light diffusing elements.