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SUNGLASS
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Technical Examples
- Clip sunglass lenses where a flip-up retention angle of a glass lens (4) is adjustable in a stepped manner and is reliably positioned at optimum positions. Clip sunglass lenses have a clip (1), an insertion member (2), a level-adjusting member (3), and a level-adjusting member (5). The clip (1) has a holding mouth (11) and a socket mouth (12) inside which notches are formed at required intervals in the insertion/removal direction. The insertion member (2) has a plug portion formed at one end and fork-shaped clasping brackets (22). The level-adjusting member (3) has connection shafts (31) with stepped notches formed at required intervals in their surfaces and has a plate surface in which cutout grooves (32) are formed. The level-adjusting buckle (5) is fixed at the central portion of the sideway-long polarized glass lens (4) and has latch projections latched to a cutout groove (32).
- A device using light emitting diodes directed at the patient as a light source for evaluating the appropriate color and density of filters or sunglasses for a patient is disclosed. The device may be used with additional filters or sunglasses to determine what filter or sunglass color and density will provide optimal vision for targets of varying spatial frequency. The device may also be used with additional filters of varying color and density to determine the health of the patient's ocular media.
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