| 摘要 |
PROBLEM TO BE SOLVED: To easily produce an optical device in high yield by adjacently arranging one line of plural lens array plates, for which plural lenses are arranged at prescribed intervals, on the upper and lower surfaces of a spacer board made long in one direction and fixing them so that the respective lenses on the upper lens array plate and lower lens array plate can be correspondently located. SOLUTION: On the front and rear faces of a spacer board 6, four lens array plates 1 and 2 are respectively arranged adjacently in the lengthwise direction. On one side of the respective lens array plates 1 and 2, microlenses 4 having the diameter of about 200 to 400μm are linearly formed at the pitch of 300 to 800μm and further, a light shield film 3 is formed at a section other than the microlenses 4. At the section of a joint 5, an adhesive agent having a light shielding property or the film of a light shielding material is formed for keeping the light shielding property. Thus, the yield of 100% is realized even in the manual production based on visual confirmation.
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