Abstract: An object of the invention is to provide a phase object identification device and method which can identify a phase object in a completely different manner from conventional methods for observing or measuring a phase object. A phase object identification device 1 for identifying a phase object for changing the phase of light includes a light source 2, a sample holding means 3 for holding a phase object 31 to be identified, a holographic recording medium 4 on which a hologram 41 formed by interference between reference light 25 and object light 24 that is phase-modulated by a known phase object 32 is recorded, and a light detector 5, a phase of light 21 emitted from the light source is modulated by the phase object to be identified to generate sample light 22, the hologram of the holographic recording medium is irradiated with the sample light, reproduced light 23 reproduced from the hologram of the holographic recording medium is detected by the light detector.

Abstract: The present invention provides an optical waveform shaping device (10) of high resolution comprising a branching filter (1) for branching the light beam from a light source into light beams of each frequency, a condensing part (2) for condensing a plurality of light beams branched by the branching filter (1), a polarizing plate (3) for adjusting the polarization planes of the light beams having passed through the condensing part (2), and a spatial light modulator (4) having a phase modulation part and an intensity modulation part where the light beams having passed through the polarizing plate (3) are incident.

Abstract: An object of the invention is to provide a phase object identification device and method which can identify a phase object in a completely different manner from conventional methods for observing or measuring a phase object. A phase object identification device 1 for identifying a phase object for changing the phase of light includes a light source 2, a sample holding means 3 for holding a phase object 31 to be identified, a holographic recording medium 4 on which a hologram 41 formed by interference between reference light 25 and object light 24 that is phase-modulated by a known phase object 32 is recorded, and a light detector 5, a phase of light 21 emitted from the light source is modulated by the phase object to be identified to generate sample light 22, the hologram of the holographic recording medium is irradiated with the sample light, reproduced light 23 reproduced from the hologram of the holographic recording medium is detected by the light detector.

Abstract: [Problems] To provide a checking system which allows effective inspection of browsable moving image data in a browsable state on a site on a network. [Means for Solving Problems] The checking system for checking browsable moving image data in a browsable state for a site on a network comprises a moving image database in which registered moving image data is registered as information and checking means for checking browsable moving image data with the registered moving image data registered in the moving image database. The browsable moving image data includes a still image displayed as a sample. The moving image database includes a recoding medium on which are recorded a group of registration images composed of multiple frame images created from reproduced moving images reproduced from the registered moving image data as each piece of registered moving image data.

Abstract: A checking system is provided for making it possible to carry out an effective censor for browsing image data that can be in a browsing state at a site on a network An image data checking system is provided with an image database (2) in which a plurality of registering image data are registered; a retrieving light generating means (3) for generating retrieving light in accordance with browsing image data; a checking means (4) for checking the browsing image data and the registering image data, wherein the image database has a holographic recording medium (20) provided with a hologram recording layer (21) on which image data are recorded by an interference fringe (24) resulting from information light (32) generated in accordance with the registering image data and reference mark light (33) generated in accordance with a reference mark, and the checking means irradiates the retrieving light (36) generated by the retrieving light generating means to the hologram recording layer, detects a reference mark light (3

Abstract: It is an object of the present invention to provide an optical waveform shaping device of high resolution. The above-mentioned problem is solved by an optical waveform shaping device (10) comprising a branching filter (1) for branching the light beam from a light source into light beams of each frequency, a condensing part (2) for condensing a plurality of light beams branched by the branching filter (1), a polarizing plate (3) for adjusting the polarization planes of the light beams having passed through the condensing part (2), and a spatial light modulator (4) having a phase modulation part and an intensity modulation part where the light beams having passed through the polarizing plate (3) are incident.

Abstract: In order to achieve highly dispersive spectrometry in wide wavelength with the use of a single grism, but not a plurality of grisms, the grism is composed of a prism the vertex angle of which can be varied and a volume phase holographic (VPH) grating. More specifically, the grism comprises a prism the vertex angle of which can be varied; and a VPH grating being a diffraction grating and disposed substantially orthogonal with respect to a side including the vertex angle of the prism; the VPH grating being rotated around an axis being substantially orthogonal to the side of the prism, whereby a slope angle defined by the VPH grating and a predetermined plane is varied.

Abstract: In order to achieve highly dispersive spectrometry in wide wavelength with the use of a single grism, but not a plurality of grisms, the grism is composed of a prism the vertex angle of which can be varied and a volume phase holographic (VPH) grating. More specifically, the grism comprises a prism the vertex angle of which can be varied; and a VPH grating being a diffraction grating and disposed substantially orthogonal with respect to a side including the vertex angle of the prism; the VPH grating being rotated around an axis being substantially orthogonal to the side of the prism, whereby a slope angle defined by the VPH grating and a predetermined plane is varied.