 Silver halide photographic material |
| OF THE INVENTION In the present invention, elution of an antifoggant from a silver halide emulsion ... |
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| Methods and apparatus for making holograms |
| OF PREFERRED EXEMPLARY EMBODIMENTS In the context of the present invention, a volumetric data set ... |
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| Wide image scanner |
| Accordingly, it is an object of the present invention to provide a wide image scanner which can ... |
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| Holographic optical element for optical disk pickup head |
| OF THE PREFERRED EMBODIMENTS FIG. 1 illustrates a pickup head 20, showing selected components by ... |
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| Scanning of images |
| It is therefore an object of the present invention to be able to scan all records simultaneously to ... |
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| Fax machine with retractable drawer |
| The invention may comprise a modular fax machine having a document feeder and a control panel ... |
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| Transmissive holographic optical element on aberrating substrate |
| What is claimed is: 1. A method for using a transmissive holographic optical element comprising the ... |
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| Method of preparing a hologram using readily available light sources |
| Therefore according to the present invention as a first step there is provided a method of ... |
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| Resin coated carriers for electrostatic image development and the method of preparing the same |
| OF THE INVENTION BET specific surface area is measured with, for example, a micromeritics flow ... |
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Optical information processor
| Details |
Inventors: Nishii, Kanji; Ito, Masami; Hukui, Atsushi;
Assignee: Matsushita Electric Industrial Co., Ltd. (Osaka, JP)
Primary Examiner: Mancuso; Joseph
Assistant Examiner:
Attorney, Agent or Firm: Wenderoth, Lind & Ponack
A visual recognition apparatus for use in, for example, a robot requires an optical information processor for performing image processing or image recognition. The optical information processor includes a first spatial light modulator for displaying an input image, a first lens having a front focal plane on which the first spatial light modulator is positioned, a second spatial light modulator for displaying at least one optical filter, a second lens having a front focal plane on which the second spatial light modulator is positioned, and a third lens having a front focal plane on which a rear focal plane of the second lens lies. The optical information processor also includes a beam splitter for combining together light transmitted through the first lens with light transmitted through the third lens, and a fourth lens having a front focal plane on which both a rear focal plane of the first lens and a rear focal plane of the third lens generally lie. |
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DETAILED DESCRIPTION The present invention has been developed to overcome the above-described disadvantages and is intended to provide a compact optical information processor wherein an optical system has a comparatively short optical path.
In accomplishing the above and other objects, an optical information processor according to the present invention comprises a first spatial light modulator for displaying an input image, a first lens having a first focal plane on which the first spatial light modulator is positioned, a second spatial light modulator for displaying at least one optical filter, a second lens having a first focal plane on which the second spatial light modulator is positioned, and a third lens having a first focal plane on which a second focal plane of the second lens lies.
The optical information processor also comprises means for combining light transmitted through the first lens with light transmitted through the third lens, and a fourth lens having a first focal plane on which both a second focal plane of the first lens and a second focal plane of the third lens generally lie.
Another optical information processor of the present invention comprises a first spatial light modulator for displaying an input image, a first lens having a first focal plane on which the first spatial light modulator is positioned, a second lens having a first focal plane on which a second focal plane of the first lens lies, and a third lens having a first focal plane on which a second focal plane of the second lens lies.
The optical information processor further comprises a second spatial light modulator for displaying at least one optical filter, a fourth lens having a first focal plane on which the second spatial light modulator is positioned, and a fifth lens having a first focal plane on which a second focal plane of the fourth lens lies.
The optical information processor also comprises means for combining light transmitted through the third lens with light transmitted through the fifth lens, and a sixth lens having a first focal plane on which both a second focal plane of the third lens and a second focal plane of the fifth lens generally lie
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Optical Systems 
