| 摘要 |
PROBLEM TO BE SOLVED: To disperse a luminous quantity of a green color band important for a visual sense. SOLUTION: The lens system 2 properly disperses a luminous quantity of a green band, provided with: a first prism lens 11 the first slope S2 of which reflects a luminous quantity made incident from an incident face S1 and a first emission face S3 of which emits the luminous quantity reflected in the first slope S2; a reflection transmission film 12 placed on the first slope S2 of the first prism lens 11 and reflecting or transmitting the luminous quantity of the green band among the luminous quantities made incident from the incident face S1 of the first prism lens 11; and a second prism lens 13 a second slope S4 of which is joined with the first slope S2 of the first prism lens 11 via the reflection transmission film 12 and a second emission face S5 of which emits the luminous quantity transmitted through the reflection transmission film 12. COPYRIGHT: (C)2003,JPO
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