Optical component and isolator

An optical component used in a pair of optical components in an electrically insulating isolator in which opposing surfaces of each optical component of the pair are placed against each other, comprising:

• a plurality of first lens portions that are provided on different optical paths from each other and transmit light in a first direction;
• a plurality of second lens portions that are provided on different optical paths from each other and transmit light in a second direction orthogonal to the first direction;
• a reflection portion that reflects light in the first direction transmitted through the first lens portion to the second direction and leads the light to the second lens portion, or reflects light in the second direction transmitted through the second lens portion to the first direction and leads the light to the first lens portion;
• a convex portion provided on the opposing surface;
• and
• a concave portion provided on the opposing surface, wherein
• the second lens portion provided by one of the optical components of the pair and the second lens portion provided by the other optical component of the pair are arranged so as to face each other with a space between them,
• the optical component is integrally molded with resin, and
• both optical components of the pair are connected to each other at the opposing surfaces by inserting the convex portion provided by one of the optical components of the pair into the concave portion provided by the other optical component of the pair and by inserting the convex portion provided by the other optical component of the pair into the concave portion provided by one of the optical components of the pair such that the plurality of first lens portions and the plurality of second lens portions of each of the optical components of the pair are provided away from the connected opposing surfaces.