| 摘要 |
PURPOSE:To prevent the fall of the optical axis of an optical system by constituting elastic supporting means including plural equal supporting bodies in each side and connecting at least a pair of corresponding parts of supporting bodies in each side by a connecting member. CONSTITUTION:An objective lens holding body 72 is fixed between the center part of a plate-shaped elastic body 66 and that of a plate-shaped elastic body 70, and an objective lens 76 is held by the holding body. The objective lens has the optical axis in the direction of an arrow B orthogonal to the direction of an arrow A, and consequently, the luminous flux passing the objective lens 76 passes circular apertures in center parts of plate-shaped elastic bodies 66 and 70. Connecting members 73 which connect corresponding parts of waveform parts 68a and 72a are interposed between waveform parts 68a and 72a are interposed between waveform parts 68a and 72a in one side of plate-shaped elastic bodies 66 and 70 having practical equal constitution and characteristic. Plural connecting members 73 which connect corresponding parts of waveform parts 68b and 72b are interposed similarly between waveform parts 68b and 72b in the other side of plate-shaped elastic bodies 66 and 70.
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