Importance

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Abstract

A lens-mirror array includes a second optical element arranged adjacent to a first optical element in a main-scan direction. The first optical element has an incident surface, a first reflection surface, and an exit surface. The incident surface is shaped to transmit and focus a light incident on the incident surface. The first reflection surface has positive optical power and is configured to reflect and focus the light entering through the incident surface. The exit surface outputs the light reflected by the first reflection surface. The second optical element includes a second reflection surface. A travel blocking portion is provided between the first reflection surface and the second reflection surface. A reflectance reduction layer is provided in the travel blocking portion to set light reflectance in the travel blocking portion to be lower than that of the first reflection surface.

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First Claim