日本PEAK放大镜说明
 放大镜是用来观察物体细节的简单目视光学器件，是 焦距 比眼的明视距离小得多的会聚透镜。物体在人眼视网膜上所成像的大小正比于物对眼所张的角（视角）。视角愈大，像也愈大，愈能分辨物的细节。移近物体可增大视角，但受到眼睛调焦能力的限制。使用放大镜，令其紧靠眼睛，并把物放在它的焦点以内，成一正立虚像。放大镜的作用是放大视角。为作比较，物放在明视距离 s 0 （250毫米）处，裸眼观察时的视角为 j ，用放大镜观察时，令虚像也位于明视距离处，视角变为 j  ′。定义视角放大率（或称放大倍数）为 

     在傍轴条件下，视角放大率为 

     式中 f 为放大镜的焦距，有 s 0 >> f 。焦距愈短，放大倍数愈高，但由于受到像差的限制，单个凸透镜的放大倍数一般不超过3，组合消 像差 透镜的放大倍数可提高到20左右+556

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1960	Lupe 5X
1961	Lupe 10X
1962	Lupe 15X
1964	Lupe 22X
1964-L	Lupe 22X
1966	Light Lupe 10X
1967C	Color Tone Viewer
1967M	Mono Tone Viewer
1972-50	Glass Scale 50
1972-100	Glass Scale 100
1972-200	Glass Scale 200
1972-300	Glass Scale 300
1972-300S	Glass Scale 300S
1972-500S	Glass Scale 500S
1972-700S	Glass Scale 700S
1972-1000S	Glass Scale 1000S
1975-7X	Scale Lupe 7X (w/ one scale)
1975 Scale	Scale for 7X
1976	Scale Lupe 7X set
1977A	P.I.L.A.
1977B	P.I.L.B.
1977C	P.I.L.C.
1977D	P.I.L.D.
1977E	P.I.L.E.
1980	P.I.L.Auxiliary Lens
1983-10X	Scale Lupe 10X (w/ one scale)
1983-10X	Scale Lupe (Without scale)
1983-10x	Red Standard Scale for 1983-10X
1983 - Scale	Scale for 10X
1985-7	Steinheil Lupe 7X
1985-10	Steinheil Lupe 10X
1985-14	Steinheil Lupe 14X
1985-20	Steinheil Lupe 20X
1986	Magnet Lupe
1987	Light Lupe 3.5X
1989	Parasite Lupe
1990-4	Anastigmat Lupe 4X (w/scale)
1990-4 Scale	Scale for 4X
1990-7	Anastigmat Lupe 7X (w/scale)
1990-7 Scale	Scale for 7X
1993	Sucking Lupe 10X
1994-2	Stereo Viewer 2X
1994-4	Stereo Viewer 4X
Oct-83	Lupe 30X
1996-L	Light Lupe 30X
1997	Hand Lupe 3X
1998	Light Scale Lupe 7X (w/scale)
1999	Telecentric Lupe 7X(W/scale)
2001-15	Pocket Microscope 15X
2001-25	Pocket Microscope 25X
2001-50	Pocket Microscope 50X
2001-75	Pocket Microscope 75X
2001-100	Pocket Microscope 100X
2003 (1006 SA0)	Linen Tester 1006 SA0
2003 (1006 SA3)	Linen Tester 1006 SA3
2003 (1006 WZ3)	Linen Tester 1006 WZ3
2003 (1209 SA0)	Linen Tester 1209 SA0
2003 (1209 SA3)	Linen Tester 1209 SA3
2003 (1209 WZ3)	Linen Tester 1209 WZ3
2003 (1504 WA3)	Linen Tester 1504 WA3
2003 (2003 WA3)	Linen Tester 2003 WA3
2003 (3407 SA0)	Linen Tester 3407 SA0
2003 (3407 SA3)	Linen Tester 3407 SA3
2003 (3408 WZ3)	Linen Tester 3408 WZ3
2004	Scale Lupe 10x set
2008-25	Stand Microscope 25X (w/scale)
2008-25 Scale	Scale for 25X
2008-50	Stand Microscope 50X (w/ scale)
2008-50 Scale	Scale for 50X
Plastic Cap For 2008-50X
2008-75	Stand Microscope 75X (w/ scale)
2008-75 Scale	Scale for 75X
Plastic Cap For 2008-75X
2008-100	Stand Microscope 100X (w/ scale)
2008-100 Scale	Scale for 100X
2008-LH	Light Holder for 2008
2009-20	Shop Microscope 20X
2009-40	Shop Microscope 40X
2009-60	Shop Microscope 60X
2009-100	Shop Microscope 100X
2010	Brinnel Microscope
2015	Mini Comparater 7X
2016-15X	Scale Lupe 15X (w/scale)
2016 Scale	Scale for 15X
2016-L	Light Scale Lupe 15X (w/scale)
2017-6	Tie-Pin Lupe 6X
2017-8	Tie-Pin Lupe 8X
2018	Lupe 8X
2018-PH	Puncher & Holder
2018-SET	35mm Viewer
2019	Cassette Lupe 15X
2021-15	Swing Lupe 15X
2021-22	Swing Lupe 22X
2022-35	Achroma Lupe 35
2022-55	Achroma Lupe 55
2022-75	Achroma Lupe 75
2023	Light Lupe 15X
2026-8	Hand Viewer 8X
2026-15	Microfilm Viewer 15X
2026-20	Microfilm Viewer 20X
2027	Short Focus Scope 8X20
2028	Light Scale Lupe 10X (w/sclae)
2032	Plalupe 10X
2033-90	Flexible Stand Lupe 90
2033-100	Flexible Stand Lupe 100
2033-115	Flexible Stand Lupe 115
2034-20	Wide Stand Microscope 20X
Upper Lens (eyepiece lens) for2034-20X
Lower Lens (objective lens) for 2034-20X
2034-40	Wide Stand Microscope 40X
2034-60	Wide Stand Microscope 60X
2034-100	Wide Stand Microscope 100X
2034-100 Scale	Scale for 2034-100X
Upper Lens (eyepiece lens) for2034-100X
Lower Lens (objective lens) for 2034-100X
2034-150	Wide Stand Microscope 150X
2034-200	Wide Stand Microscope 200X
2034-300	Wide Stand Microscope 300X
2035-I	Head Lupe I
2035-II	Head Lupe II
2036-25	Pocket Measuring Microscope 25X
2036-50	Pocket Measuring Microscope 50X
2037	Scale Lupe 30X (w/scale)
2037 Scale	Scale for 30X
2037-L	Light Scale Lupe 30X (w/scale)
2038	Lupe 4X
2039	Mirror Stereo Viewer
2039-BINO	Attachment binoculer 4x
2041	Multi Desk Lupe
2044	Zoom Lupe 816
2046	Light Box
2047	Pendant Lupe 3X
2048 - A13D	Eye Lupe A13D
2048 - A16D	Eye Lupe A16D
2048 - A20D	Eye Lupe A20D
2048 - A26D	Eye Lupe A26D
2048 - AW (A40D)	Eye Lupe AW
2048 - V13D	Eye Lupe V13D
2048 - V16D	Eye Lupe V16D
2048 - V20D	Eye Lupe V20D
2048 - V26D	Eye Lupe V26D
2049	Tri-work Lupe 10X
2050-25	Pocket Micro. 25X EIM
2050-50	Pocket Micro. 50X EIM
2050-75	Pocket Micro. 75X EIM
2050-100	Pocket Micro. 100X EIM
2051-30	Hand Microscope 30X
2051-60	Hand Microscope 60X
2052	Scale Lupe 3X (w/scale)
2053	Folding Lupe
2054-20	Wide Stand Microscope 20X
2054-40	Wide Stand Microscope 40X
2054-60	Wide Stand Microscope 60X
2054-100	Wide Stand Microscope 100X
2054-150	Wide Stand Microscope 150X
2054-200	Wide Stand Microscope 200X
2054-300	Wide Stand Microscope 300X
2054-20EIM	Wide Std. Microscope 20X
2054-40EIM	Wide Std. Microscope 40X
2054-60EIM	Wide Std. Microscope 60X
2054-100EIM	Wide Std. Microscope 100
2054-40CIL	Wide Stand Microscope 40X
2054-60CIL	Wide Stand Microscope 60X
2054-100CIL	Wide Stand Microscope 100X
2054-150CIL	Wide Stand Microscope 150X
2054-200CIL	Wide Stand Microscope 200X
2054-300CIL	Wide Stand Microscope 300X
2055-20	Scale lupe 20X w/one scale
2055-20 scale	Scale for 20X
2055-L	Light scale lupe 20X
2056-25	Pocket Microscope 25x EI
2056-50	Pocket Microscope 25x EI