Image sensor with diffraction grating array

Details Image sensor with diffraction grating array Image sensor with diffraction grating array

2006-05-02

2006-05-02

Pyo, Kevin (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

C257S432000

Reexamination Certificate

active

07038184

ABSTRACT:
An image sensor (100) includes a diffraction grating array (130), a microlens array (140), a light receiving cell (170), and a signal transacting circuit board (190). The diffraction grating array includes a plurality of round gratings. The light receiving unit includes a plurality of pixels which are arranged in a two-dimensional array. The diffraction grating array, the microlens array, the light receiving unit and the signal processing circuit board are arranged one above the other in that order from top to bottom. Each grating corresponds to a pixel vertically located therebelow. Light passes through the diffraction grating array, is then vertically incident on the microlens array, and is then incident on the light receiving unit, the light receiving unit converts receiving light signals into the electronic signals which is processed by the signal processing circuit board to form output signals. The image sensor is available for high quality of image.

REFERENCES:
patent: 5076687 (1991-12-01), Adelson
patent: 5210400 (1993-05-01), Usami

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