INFORMATION ACQUISITION APPARATUS

The invention provides an information acquisition apparatus which is provided with an illumination unit, an imaging optical system, and an imaging element. The imaging optical system comprises, in order from the object side, an incident-side lens group, an aperture unit, and an exit-side lens group....

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Bibliographic Details
Main Authors YAMADA, Yasuharu, HARA, Kento, HIRATA, Tadashi
Format Patent
LanguageEnglish
Published 08.08.2019
Subjects
BLASTING
FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF
HEATING
LIGHTING
MECHANICAL ENGINEERING
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR
WEAPONS
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Summary:The invention provides an information acquisition apparatus which is provided with an illumination unit, an imaging optical system, and an imaging element. The imaging optical system comprises, in order from the object side, an incident-side lens group, an aperture unit, and an exit-side lens group. Each of the incident-side lens group and the exit-side lens group comprises a plurality of positivelenses and at least one negative lens, and the following conditional expressions (1)-(9) shown in the description are satisfied.
Bibliography:Application Number: US201916259482