Abstract: An illuminator includes a strip-shaped light guide and a plurality of light sources. The light sources are disposed along one end surface in the width direction of the light guide to allow light to be incident on the one end surface. The light guide guides the light of the light sources from the one end surface to the other end surface in the width direction of the light guide. The one end surface and the other end surface of the light guide are light-diffusing surfaces. The width of the light guide is larger than the thickness of the light guide.

Abstract: A vehicle direction indicator light includes a light source and a light emitting body. The light emitting body guides light to the outside of the vehicle, and includes an outer emitting surface facing the outside of the vehicle, an inner emitting surface facing the inside of the vehicle, and a tip surface connecting the inner and outer emitting surfaces and facing a front or rear side of the vehicle. The outer emitting surface has a step shape in which a first surface portion that faces the outside of the vehicle and a second surface portion that faces the front side or the rear side of the vehicle are alternatingly connected to each other in a longitudinal direction of the vehicle. Light emitted through the second surface portion and the tip surface has a higher intensity than the light emitted through the first surface portion.

Abstract: An illuminator includes a strip-shaped light guide and a plurality of light sources. The light sources are disposed along one end surface in the width direction of the light guide to allow light to be incident on the one end surface. The light guide guides the light of the light sources from the one end surface to the other end surface in the width direction of the light guide. The one end surface and the other end surface of the light guide are light-diffusing surfaces. The width of the light guide is larger than the thickness of the light guide.

Abstract: A vehicle direction indicator light includes a light source and a light emitting body. The light emitting body guides light to the outside of the vehicle, and includes an outer emitting surface facing the outside of the vehicle, an inner emitting surface facing the inside of the vehicle, and a tip surface connecting the inner and outer emitting surfaces and facing a front or rear side of the vehicle. The outer emitting surface has a step shape in which a first surface portion that faces the outside of the vehicle and a second surface portion that faces the front side or the rear side of the vehicle are alternatingly connected to each other in a longitudinal direction of the vehicle. Light emitted through the second surface portion and the tip surface has a higher intensity than the light emitted through the first surface portion.

Abstract: A transmission comprises a first roller having a first repeated number of first grooves on the outer circumferential surface of a first shaft body having a cross-sectional circular shape in the perimeter direction, a second roller having a second repeated number of second grooves in the perimeter direction on the outer circumferential surface of a second shaft body having a cross-sectional circular shape, and a cylinder-shaped third roller having plural grooves extending in the axial direction with intervals in the perimeter direction on the inner diameter surface. The second repeated number is different from the first repeated number. The first roller and the second roller each face the third roller via plural first rolling elements positioned in the first grooves and plural second rolling elements positioned in the second grooves.