Abstract: Provided are a lens device, an imaging apparatus, and a filter unit capable of suppressing occurrence of ghosts and flares. The lens device includes a first optical filter and a second optical filter in order from an object side in an optical path. The first optical filter is composed of an optical filter (for example, a band-pass filter) that has a light transmission band in a specific wavelength region. The second optical filter is composed of an optical filter (band-stop filter) that has a light absorption band in a wavelength region which is different from the light transmission band of the first optical filter.

Abstract: A power blower has a body having a fan housing for accommodating a fan, the fan housing having an upper portion, a lower portion opposite to the upper portion, and a pair of support portions extending from the upper portion. A driving machine is mounted to the fan housing for driving the fan. A discharge duct is mounted to the fan housing for discharging a current of air produced by driving of the fan. A pair of legs is disposed at the lower portion of the fan housing to enable the body to stand alone on a surface. A main handle having a structure separate and independent from the fan housing is removably connected to the pair of support portions of the fan housing. An auxiliary handle is integrally formed with and disposed between the pair of legs. The auxiliary handle has a holding edge aligned with a central extension line of the main handle.

Abstract: A portable power blower including a fan housing containing a fan is provided. A main handle is provided on an upper surface of the fan housing, and a pair of legs is formed on a lower surface. Between the pair of legs, an auxiliary handle is integrally formed with the legs. When the power blower is turned horizontally for use, the power blower is supported with both hands, with the main handle gripped with one hand and the auxiliary handle held with the other hand.

Abstract: There is provided a method of insulating electromagnetic coils comprising coating an electromagnetic coil with epoxy resin containing a cross linking agent consisting essentially of an acid anhydride, said coil having a bonding layer consisting of epoxy resin having a melting point of higher than 60.degree. C, and then subjecting to bridging said epoxy resin containing a cross linking agent by heating.

Abstract: The method of the present disclosure includes preparing a coil which is impregnated with resin to form a resin packed coil, in which the resin is still in a liquid phase, immersing the resin packed coil into a wax in the liquid state, hardening the wax adhering around the resin packed coil, hardening the resin which is impregnated in the coil, and removing the wax, thus obtaining a resin packed coil assembly where the resin is hardened and surrounds the coil.