DLA MIL-M-37869-1978 MICROSCOPE OPTICAL BINOCULAR《双目光学显微镜》.pdf

1、MIL-M-37864 66 W 4479706 0337543 4 RIL-M-3?sij9(!M.A-W) 28 April !978 NIL i TARI SPEC SF I CAI I MICROSCOPE, omw, BIRWW This tpeciflcation is approved for use by tht Defense Prrrannc Support Center, and Is available for use by all kpartrrrits rnd Agencies of the epartment of efense. 1. SCOPE Thls sp

2、ecification covers a quadruple nosepiece, lncllne binocular * SOeT m croscope with a built-in variable light source. 2. APPLICABLE DOCLMENTS 2.1 Issues of documents. The folloulng documents of the issue in effect on date of invitation for bids or request for proposals, form a part o* thls spccl- fic

3、atlon to the extent specified herein. SPECIFICATIONS FEDERAL QQ-A-591 QQ- 1-652 99-2-363 PPP- 6-585 PPP-6-601 PPP-6-621 PPP-6-636 - Boxes, Shipping, Fiberboard. - Alumlnrn Alloy Die Castlngs. - Iron Casting, Gray. - Zlnc-base Alloy, Die Castings. - Boxes, Wood, Wirebound. - Boxes, Wood, Cleated Plyw

4、ood. - Boxes, Wood, Nailed and Lock Comer. MILITARY WIL-C-675 ML-L-10547 - Coating of Glass, Optical Elements (Antireflection). - Liner, Case, and Sheet, Overwrap, Water Vaporproof or Waterproof, Flexible. Beneficial camients (rocamiendations, additions, deletions) and any pertinent data which my be

5、 of use In impruving this docunent should be addressed to: Defense Personnel Support Center, Directorate of Medical Materiel, CODE-ATT, 2800 So. 20th Stmet, Philadelphia, PA 19101, by using the self-addressed Standardization Docment Improvement Proposal (DD Fon 1426) appearing at the end of this doc

6、went or by letter. FSC 6650 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-M-37b7 bb m 77779Ob 0137572 b m MIL-M-37869( DLA-M) STAHDARDS MIL-SfD-! 05 MIL-STD-129 - Sampling Procedures and Tables for Inspection by - arking for Shipment and Storag

7、e. Attributes. (Copies of specifications, standards, and publications required by con- tractors in connection with specific procurement functions shou?d be obtained fm the procuring activity or as directed by the contracting officer). fication to the extent specified herein. Unless otherwise indicat

8、ed, the issue in effect on mFiw- The siigporting am shall be zinc-base alloy, con- -ng - i-. eovwiq to cL13, 383 or ciao of Ftbral Specification 09-A-591. or brass of Srttabh Mition. cdtrr1 Soxiriatior! rn2-363, an alrrrinw alloy dio cast- 2 Provided by IHSNot for ResaleNo reproduction or networking

9、 permitted without license from IHS-,-,-MIL-M-37b9 bb m 77?77?7Ob 0337573 = MIL-M-37869 (DL.A-DM) 3.1.2.3 Moving metal parts. Opposing faces- of bearing surfaces of moving metal parts shall be of dissimilar metal composition or shall be lubricated to prevent binding. 3.1.2.4 Other metal parts. Mater

10、ial for other metal parts shall be suit- able for the intended purpose. 3.1.3 Plastic. The plastic shall be suitable for the intended purpose. 3.2 Design and construction. The microscope shall be of the standard in- Shall be capable of accepting the following accessories: clined binocular type and s

11、hall consist of a base, supporting arm, coarse and fine adjustments, focusable substage with condenser, optics and built-in vari- able light source. polarizer, dark field condenser and objectives, dual viewing adapter with built-in pointer and triocular head for photomicroscopy (see 6.1 ). Design fe

12、atures in the optical system shall include a fully rotatable body and a quadruple nosepiece with objectives attached thereto. The microscope shall be furnished with an infinity corrected optical system which shall make it . possible to change objective eyepiece distance without affecting focus or pa

13、rfocality. This optical system shall permit focusing by movement of the nosepiece assembly or the stage, leaving the position of the eyepiece station- ary in relation to the viewer. shall raise and lower the stage or nosepiece assembly in.a smooth and positive manner. objective combination. affords

14、a well balanced sturdy stand for the assembled microscope. Turning of coarse and fine adjustment knobs The eyepieces shall be optically suitable for use with nosepiece/ 3.2.1 m. The shape and design of the base shall be such that the base 3.2.2 Supporting arm. The supporting arm shall be integral wi

15、th or shall All parts of the microscope except the base be rigidly secured to the base. and light shall be supported by the arm. 3.2.3 Coarse adjustment. The coarse adjustment shall be the ball bearing slideway type, actuated by a diagonal cut rack and pinion or screwand lever. There shall be operat

16、ing knobs on each side of the microscope, with provision for varying the tension of the adjustment. An easily adjustable, positive mechanical stop shall prevent racking into the slide by the 1OX objective. adjustment knob. knobs. tube or stage not more than 200 micrometers. One knob shall have a mic

17、rometer screw which is graduated in one micrometer steps for purposes of measuring specimen thickness. When the high dry and oil immersion objectives touch or come into contact with the glass slide or cover slip, the positive driving force shall be ineffective and no damage to objectives or stage sh

18、all result even though fine adjustment knob is turned. 3.2.4 Fine adjustment. Fine adjustment shall be achieved by turning fine The knobs shall concentric within the two coarse adjustment One complete revolution of the fine adjustment knob shall move the body 3 Provided by IHSNot for ResaleNo reprod

19、uction or networking permitted without license from IHS-,-,-MIL-M-37869 66 779770b 033757i.1 T MIL-M-37869 (DLA-DM) 3.2.5 Binocular body. The magnification or size of field shall be the same for the binocular microscope as is obtained when a monocular body tube is substituted for the binocular body.

20、 on a slideway or shall have a rack and pinion movement. .Interpupillary distance shall be adjustable within a range of 54 to 72 millimeters (minimum) and interpupillary scale shall indicate in millimeters. The eyetube shall be inclined toward the operator at an angle between 280 to 600 from the per

21、pendicular. One eyetube shall be adjustable in length to compensate for differences in refractive power of the eyes of the user. The binocular body shall incorporate a mechanism which insure that the optical tube length is constant throughout the interpupillary range. The binocular body shall be rea

22、dily removable from the body support for inter- changeabi 1 ity with the trinocular body for photomicrographic procedures. The optical elements in the binocular body shall be supported in metal mounts Synthetic resin may be used as an adhesive in mounting. Resin shall be completely water resistant,

23、vermin proof and rotproof and shall produce a minimum amount of strain on the optical elements. The nosepiece shall be attachable to the body support by means of threads conforming to ANSI Standard 81.11 or shall be held to body support by three (3) adjusting screws. The nosepiece shall be provided

24、with four (4) equal ly spaced revolving receptacles , threaded in accordance with ANSI Standard B1.ll to receive the objectives regardless of their focal length or magnification. to assure continuing parcentricity of the objectives. Eyepiece tubes shall be mounted 3.2.6 Nosepiece. Shall have a deten

25、t stop at each receptacle position 3.2.7 Stage. The stage shall measure at least 115 by 130mm. The edges of the stage shall have a nominal thickness of 8.7mm. The minimum thickness of thestage shall be not less than 3.3mm., except for the chamfered area which shall have a minimum thickness of 1.5m.

26、No dimension (length or width) of stage aperture shall be less than 30 mm. and lower surface of aperture shall be chamfered to provide clearance for substage accessories. of the stage shall have a matte finish. The underside of the stage shall be designed to facilitate securing to the supporting arm

27、, built in the stage. a 50 by 75 m. microscope slide by the optical axis of the miscroscope. mechanical stage shall consist of a platform which is movable in a north-south direction and a slide holding device which is movable over the platform in an east-west direction. The mechanical movements shal

28、l be free of lost motion and shall be accomplished by a gear device which is actuated by knurled knobs. an object is observed under the highest magnification, movement shall be such that the object may be moved freely and smoothly with the absence of jerkiness. The mechanical stage shall have suffic

29、ient rigidity so that its operation shall not cause the object to move out of focus by more than 0.010 nun. for 25mm. of travel. the free rotation of the objectives in any position of use. The upper surface 3.2.8 Mechanical stage. The mechanical stage shall be an ungraduated device Mechanical stage

30、shall provide for complete coverage of The When Shall be so designed that no part of the stage shall interfere with 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.2 and p 3.2 that being f MIL-M-37869 66 S 9999906 0137575 L H MIL -M-37869 ( DLA-

31、DM ) 9 Substage. The substage shall consist of a substage condenser, rack nion focusing device and a light. 9.1 Substage condenser. The substage condenser shall be so designed t is capable of being mounted under the stage and shall be capable of centered in true alignment with the optical axis. cal

32、aperture of 1.25 or 1.30 and shall provide even full field and aperture illuminaticjn and variable aperture contact for all objectives from 1OX to 1OOX oil immersion. Suitable means shall be provided to prevent the condenser from lifting the slide on the stage and from striking the light when lowere

33、d. Condenser shall be easily removable. Shall have a numeri- 3.2.9.1.1 Rack and pinion focusing device. The rack and pinion device shall move the condenser support in such a manner that the condenser can be focused. knob. Rack and pinion device shall be activated by a conveniently placed 3.2.9.2 Var

34、iable light source. Shall be a high intensity 20 watt tungsten halogen lamp illuminator with built-in transformer. 15% transmission filter and an iris field diaphragm. vide for even illumination and balance requirements of Koehler type illumi- nation. (voltage) and use of the filter and diaphragm. S

35、hall contain a 10 or The diaphragm shall pro- Controls shall be provided for continuously variable intensity 3.2.10 Optical equipment. The follow shed with each microscope. 3.2.10.1 Objectives. Objectives chal Shall be a standard design incorporating yellow-green portion of the spectrum, wi the blue

36、 and red ends. Objectives shall ng optical equipment shall be furni- be achromatic or pl anachromati c. major chromatic corrections in the h additional partial correction in be correctd to minimize spherical and other common aberrations. and a high order of resolving power. Standard B1.ll threads as

37、 described in 3.2.6 for proper fit in nosepiece. objectives furnished shall be lox, 40 or 45X and 1OOX magnification. elements in all objectives shall be mounted in threadless cells to assure positive alignment and permanent centration and adjustment. planachromatic paired eyepieces of 1OX magnifica

38、tion. eyelens, a field lens and a field diaphragm. Shall give real field diameters indicated under wide field eyepieces in table I. constructed as to permit the use of standard measuring and counting accessories, micrometer discs and reticules, 20.0, 21.0 and 21.9nn-n. in diameter. The dis- tance fr

39、om the eyepoint to the eyelens of the eyepiece shall be not less than 19m. Shall provide a maximum degree of fieid flatness Objectives shall be provided with ANSI The Optical 3.2.10.2 Wide field oculars. Irlide field oculars shall be achromatic or Shall consist of an The eyepieces shall be so 5 Prov

40、ided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-* Working distance is the distance between the top surface of a cover glass 0.18nnn. thick and the lowest point of the objective. * Diameter applies when used with indicated objective. 3.2.10.4 Dust plug. A

41、 dust plug for the fourth objective receptacle shall be supplied. 3.3 Dust cover. Each microscope shall be provided with a dust cover of the manufacturers standard style and design. Dust cover shall be fabricated of plastic or other suitable material. 3.4 Performance. 3.4.1 Parcentricity. Crosshair

42、reticule shall appear within the centra of the 1OOX objective when tested as specified (see 4.4.1). 60% 3.4.2 Parfoca1it.y. No more than 30 microns of adjustment shall be requ red to bring the 1OOX objective into focus when tested as specified (see 4.4.2 . 3.5 Finish. The finish of the base, support

43、ing arm and body piece shall be black or dove gray organic coating. The finish shall be uniformly applied and shall be resistant to normal. abrasion and solvents normally used in microscopy. marked with name or registered trademark of the manufacturer, serial number and model number. 3.6 Identificat

44、ion marking. Each microscope shall be legibly and permanently 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-M-37867 66 W 777990b 0337577 5 W MIL-M-37869 (DLA-DM) iI 3.7 Service Data. The contractor shall furnish with each unit, two copies eac

45、h of a technical manual which contains complete instructions for in- stallation, operation, and maintenance and lists of component parts. manual shall comply with the requirements of MIL-M-7298 MANUAL, TECHNICAL, Commercial Equipment. As soon as practicable after award of the contract or purchase or

46、der, the contractor shall furnish to the Contracting Officer, via the cognizant Government inspector, two preliminary copies of his proposed technical manual, for review and comment by the Directorate of Medical Materiel, Defense Personnel Support Center. The prel iminary manuals chal 1 be submitted

47、 sufficiently early to permit adequate review by the Directorate of Medical Materiel, Defense Personnel Support Center (based on a maximum period of 30 days for such review) and to allow incorporation by the contractor of any re- quired revisions and corrections in the final manual without delaying

48、delivery under the contract or purchase order. In addition, the Contractor shall furnish 15 copies of the approved technical manual to the Contracting Officer for distri- bution, Should the supplier have furnished acceptable manuals for the identical item within two years preceding the date of contr

49、act and propose to furnish manuals identical with those previously accepted, then the requirements for review of drafts and submission of 15 additional copies may be waived upon re- quest to the contracting Officer. shall be at the option of the Government. The Waiver of submission of 15 additional copies 3.8 Workmanship. Workmanship shall be first class throughout. Microscope shall be free of defects listed in table IV, and any other defects whi