Light shielding plate, camera unit, and electronic device

A light shielding plate including a front surface located on a light incident side, a rear surface facing away from the front surface, and an aperture penetrating through the front and rear surfaces. The aperture includes a first aperture portion and a second aperture portion connected to the first...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Shimamura, Shinichi, Nishitsuji, Kiyoaki
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25 NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
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Beschreibung
Zusammenfassung:	A light shielding plate including a front surface located on a light incident side, a rear surface facing away from the front surface, and an aperture penetrating through the front and rear surfaces. The aperture includes a first aperture portion and a second aperture portion connected to the first aperture portion via a central opening. The first aperture portion extends from a rear opening in the rear surface toward the central opening and has a shape tapered from the rear surface toward the front surface. The second aperture portion extends from a front opening in the front surface toward the central opening and has a shape tapered from the front surface toward the rear surface. The front opening is larger than the rear opening.