Patent ID: 8554069
Filing Date: 2013-10-08
Classification: G02B,G03B,H04N

Abstract:
1. An imaging unit comprising: a housing having an opening on one of opposite sides thereof in a direction of thickness of said housing; an imaging optical system which is provided in said housing and includes an incident surface and an exit-side prism, wherein object-emanated light being incident on said incident surface and traveling in a lengthwise direction of said housing is reflected by said exit-side prism toward said opening; an image sensor which is installed in said housing and includes an imaging surface that faces the other of said opposite sides of said housing in said direction of thickness of said housing to face an exit surface of said exit-side prism; a spacer which projects from one of said housing and a fixed member, which is immovable with respect to said housing, said spacer being in contact with said image sensor to create a clearance between said exit surface and said imaging surface; and a cover which is fixed to said housing so as to close said opening and presses said image sensor so that said image sensor comes in contact with said spacer; wherein said housing comprises a prism mounting recess which accommodates said exit-side prism, and wherein said spacer is integrally formed with said housing so as to project toward said image sensor from a periphery of said prism mounting recess.