Abstract: A lens barrel capable of high-precision lens holding while achieving miniaturization, the lens barrel including a first lens and a second lens, a first lens frame that holds the first lens and a second lens frame that holds the second lens, and a first guide bar that supports the first lens frame so that it is movable in an optical axis direction, in which the first lens frame includes a sleeve portion including a first hole portion and a second hole portion that are engaged with the first guide bar and an opening portion formed between the first hole portion and the second hole portion, the second lens frame is provided with a third hole portion that engages with the first guide bar, and when the first guide bar is engaged with the first hole portion and the second hole portion of the first lens frame and the third hole portion of the second lens frame, the first lens frame and the second lens frame are positioned in a direction perpendicular to the optical axis by the first guide bar, and the third hole por

Abstract: A lens barrel for providing a compact lens barrel capable of suppressing ghosts and flares includes a first lens holding portion that holds a first lens; and a second lens holding portion that holds a second lens disposed further toward an image plane side than the first lens, wherein the outer diameter of the first lens is larger than the outer diameter of the second lens, wherein a plurality of through-holes along the optical axis direction of the first lens and the second lens is provided in the second lens holding portion, and wherein the first lens holding portion includes a plurality of protrusions arranged so as to overlap the plurality of through-holes if viewed from an object side along the optical axis direction.

Abstract: A lens barrel for providing a compact lens barrel capable of suppressing ghosts and flares includes a first lens holding portion that holds a first lens; and a second lens holding portion that holds a second lens disposed further toward an image plane side than the first lens, wherein the outer diameter of the first lens is larger than the outer diameter of the second lens, wherein a plurality of through-holes along the optical axis direction of the first lens and the second lens is provided in the second lens holding portion, and wherein the first lens holding portion includes a plurality of protrusions arranged so as to overlap the plurality of through-holes if viewed from an object side along the optical axis direction.

Abstract: To prevent a shaft pad member from dropping even when a lens apparatus is in an individual state without using a special member. Guide shafts (25, 26) are secured to a lens housing (20). Lens holders (16, 18) are supported on those movably. Rear ends (44, 45) of the guide shafts (25, 26) are inserted in first support holes (34, 35). Front ends (41, 42) are press-fitted in second support holes (31, 32). A shaft pad member (50) is fitted in the first support holes (34, 35) to position the rear ends (44, 45) in the first support holes (34, 35). A sensor holder (73) where an imaging device (70) is fixed is overlapped on the shaft pad member (50). The shaft pad member (50) is prevented from dropping out of the first support holes (34, 35) by the sensor holder (73).

Abstract: A lens moving frame according to an embodiment of the invention includes a holder portion. The holder portion includes: wall portions having guide holes formed therein; partition walls into which a guide bar is inserted and which are provided near the corresponding wall portions; and lubricant reservoir portions that are provided between the partition walls and the wall portions and have a lubricant filled and stored therein. The lubricant stored in the lubricant reservoir portion is adhered to the guide bar disposed between the partition wall and the wall portion. When the lens moving frame is moved along the guide bar, an extra lubricant is scraped off from the guide bar by the guide holes and opening portions of the partition walls and then stored in the lubricant reservoir portions.

Abstract: A lens moving frame according to an embodiment of the invention includes a holder portion. The holder portion includes: wall portions having guide holes formed therein; partition walls into which a guide bar is inserted and which are provided near the corresponding wall portions; and lubricant reservoir portions that are provided between the partition walls and the wall portions and have a lubricant filled and stored therein. The lubricant stored in the lubricant reservoir portion is adhered to the guide bar disposed between the partition wall and the wall portion. When the lens moving frame is moved along the guide bar, an extra lubricant is scraped off from the guide bar by the guide holes and opening portions of the partition walls and then stored in the lubricant reservoir portions. Therefore, the amount of lubricant required to smoothly move the lens moving frame is adhered to the guide bar.

Abstract: A filter set for recovering desired blood components from human blood and a method for recovering blood components using the filter set are provided. The filter set includes a bag body and an accommodation vessel for accommodating the bag body therein in a compressed condition. In the method the bag body is provided in the accommodation vessel and is compressed and blood is passed through the compressed bag body. Blood components are adhered to the compressed filter material in the bag body. Thereafter, the compression of the bag body is relieved and a washing solution is passed through the expanded bag body to remove the blood components contained therein.

Abstract: A hemolyzing tube (A) having its interior (10) evacuated and containing a standard amount of a blood dissolving liquid (3) has a tubular body (2) whose closed bottom faces a top mouth closed with a stopper (1) capable of being pierced. The tube is usable with a cylindrical casing (C) having a double-ended needle (8) and also with an evacuated blood collection tube (B) that is for temporary accommodation in the casing. In the method of preparing a hemolysis blood sample, a small amount of blood sucked through the needle will enter the collection tube (B), and a residual amount of blood remaining in the needle will then be drawn into the hemolyzing tube (A) to produce in it a test sample subject to clinical examination of the blood.