Olympus BH

Olympus BH Identification

Part list

Model

TODO: add standard metallurgical

Image	Name	Description	Notes
Source: [BH microscope, cover] [[BHA]	Bottom illumination, removable nosepiece
	BHB	Bottom illumination, fixed nosepiece
	BHC	Bottom illumination, fixed nosepiece, integrated light source
	BHMJ-02	Epi-illumination, sliding stanmd, BF, monocular
	BHMJ-22	Epi-illumination, sliding stanmd, BF, binocular
Source: [instruction BHMJ/-N, 3] [[BHMJ-42]		Epi-illumination, sliding stanmd, BF, trinocular
	BHMJ-02-N	Epi-illumination, sliding stanmd, BF/DF, monocular
	BHMJ-22-N	Epi-illumination, sliding stanmd, BF/DF, binocular
	BHMJ-42-N	Epi-illumination, sliding stanmd, BF/DF, trinocular

Objective

M is BF only. Neo are BF/DF. All are M25 threaded

Image	Part #	Type	Description	Notes
	M5X	Objective	5x
	M10X	Objective	10x
	M20X	Objective	20x
	M40X	Objective	40x
	Neo5X	Objective	5x
	Neo10X	Objective	10x
	Neo20X	Objective	20x
	Neo40X	Objective	40x
	BH-RE	Nosepiece	Quintuple
	BH-RE	Nosepiece
	BH-NRE	Nosepiece

Illuminator

Image	Part #	Type	Description	Notes
	BH-MA	Illuminator (vertical)	Brightfield
	BH-RLA	Illuminator (vertical)	Brightfield and darkfield
Source: [BH microscope, 9] [[BH-LH]	Lamphouse	Tungsten, 30W	Pre-centered
	BH-LHM	Lamphouse	Tungsten
Source: [BH microscope, 9] [[BH-LSH]	Lamphouse	Halogen 100W	Centerable
Source: [BH microscope, 9] [[BH-LH]	Lamphouse
Source: [BH microscope, 9] [[LS30]	Bulb	6V, 30W tungsten
Source: [BH microscope, 9] [[LS15]	Bulb	6V, 15W tungsten
	FK5X	Eyepiece, photo	5x
	TF	Power supply	Transformer	voltage range?
	45C	Filter	for what?
Source: [BH microscope, 9] [[jc12v 100W]	Bulb	Halogen

Observation tube

Image	Part #	Type	Description	Notes
	CH-M045	Observation tube	Monocular
Source: [BH microscope, 11] [[BH-SWTR]	Observation tube	Binocular w/ photo?
Source: [BH microscope, 11] [[BH-BI30]	Observation tube	Binocular, 30 degree
Source: [BH microscope, 11] [[BH-BI45]	Observation tube	Binocular, 45 degree
Source: [BH microscope, 11] [[BH-TR30]	Observation tube	Binocular, 30 degree (w/ photo)
Source: [BH microscope, 11] [[BH-TR45]	Observation tube	Binocular, 45 degree (w/ photo)
	BiWF10X	Eyepiece	HEP, paired
Source: [BH microscope, 15] [[EMM-VI]
Source: [BH microscope, 15] [[PM-10-35A]
Source: [BH microscope, 15] [[PM-10-35L2A]
Source: [BH microscope, 15] [[PM-10-35M]
Source: [BH microscope, 15] [[PM-6]

Misc

Image	Part #	Type	Description	Notes
[[BH-RE]	Nosepiece	Quintuple	Neo objectives (M25)
Source: [BH microscope, 9] [[BHA-F]	Stand	Bottom illumination, removable nosepiece
Source: [BH microscope, 9] [[BHB-F]	Stand	Bottom illumination, fixed nosepiece
Source: [BH microscope, 9] [[BHC-F]	Stand	Bottom illumination, fixed nosepiece, integrated light	Lowest cost?
Source: [BH microscope, 13] [[BH-SV]	Stage
Source: [BH microscope, 13] [[BH-CD]	Condenser	Abbe
Source: [BH microscope, 13] [[BH-AAC]	Condenser	Ach/Apla
	BHMJ-ST, BHMJ-F	Body/base
	FK3.3X	Photo eyepiece
	32.5C	Blue filter
Source: [BH microscope, 11] [[AH-CA]
Source: [BH microscope, 11] [[AH-FA]
Source: [BH microscope, 13] [[BH-DCD]
Source: [BH microscope, 13] [[BH-DCW]
Source: [BH microscope, 13] [[BH-PC]
Source: [BH microscope, 13] [[BH-SH]
Source: [BH microscope, 13] [[BH-SWC]

BHA/BHB/BHC configurations

Above: probably a BHA. Source: [BH microscope, cover]

Source: [BH microscope, 18]

NOTE: -1, -2, etc are my notation for the color columns in [BH microscope, 18]

Part #	Type	Description	BHA-1	BHA-2	BHA-3	BHA-4	BHB-1	BHB-2	BHB-3	BHB-4	BHC-1	BHC-2
BHA-F	Stand		Y	Y	Y	Y
BHB-F	Stand						Y	Y	Y	Y
BHC-F	Stand										Y	Y
BH-RE	Nosepiece	Quintuple	Y	Y	Y	Y
BH-LH	Lamphouse		Y	Y	Y	Y	Y	Y	Y	Y
LS30	Bulb	6V, 30W	Y	Y	Y	Y	Y	Y	Y	Y
LS15	Bulb	6V, 15W									Y	Y
BH-BI45	Observation tube	45 deg binocular		Y		Y		Y		Y		Y
BH-TR45	Observation tube	45 deg trinocular	Y		Y		Y		Y		Y
BH-SV	Stage		Y	Y	Y	Y	Y	Y	Y	Y	Y	Y
BH-CD	Condenser	Abbe			Y	Y	Y	Y	Y	Y	Y	Y
BH-AAC	Condenser	Ach/Apla	Y	Y
	Objective	Achromat 4x, 10x, S-40x (spring), S-100x (spring, oil) set			Y	Y			Y	Y	Y	Y
	Objective	Plan achromat 4x, 10x, 40x (spring), 100x (spring, oil) set	Y	Y			Y	Y
	Objective	Plan achromat 20x (spring)	Y	Y
BiWF10X	Eyepiece	HEP, paired	Y	Y	Y	Y	Y	Y	Y	Y	Y	Y
FK5X	Eyepiece, photo	5x	Y		Y		Y		Y		Y
45C	Filter	for what?
	Bulb	Spare bulb (2x)	Y	Y	Y	Y	Y	Y	Y	Y	Y	Y
	Fuse	Spare fuse (2x)	Y	Y	Y	Y	Y	Y	Y	Y	Y	Y
	Oil	Immersion oil	Y	Y	Y	Y	Y	Y	Y	Y	Y	Y
	Cover	Vintyl dust cover	Y	Y	Y	Y	Y	Y	Y	Y	Y	Y

BHMJ configurations

Above: A BHMJ, probably a BHMJ-42. Source: [instruction BHMJ/-N, 3]

Source: [instruction BHMJ/-N, 2]

-N adds darkfield

Part #	Type	Description	BHMJ-02	BHMJ-22	BHMJ-42	BHMJ-02-N	BHMJ-22-N	BHMJ-42-N
BHMJ-ST, BHMJ-F	Body/base		Y	Y	Y	Y	Y	Y
BH-RE	Nosepiece		Y	Y	Y
BH-NRE	Nosepiece					Y	Y	Y
BH-MA	Illuminator (vertical)	Brightfield	Y	Y	Y
BH-RLA	Illuminator (vertical)	Brightfield and darkfield				Y	Y	Y
CH-M045	Observation tube	Monocular	Y			Y
BH-BI45	Observation tube	Monocular		Y			Y
BH-TR45	Observation tube	Binocular (w/ photo)			Y			Y
BH-LHM	Lamphouse	Tungsten	Y	Y	Y	Y	Y	Y
LS15	Bulb	15W tungsten	Y	Y	Y	Y	Y	Y
TF	Power supply	Transformer	Y	Y	Y	Y	Y	Y
M5X M10X M20X M40X	Objective	Set	Y	Y	Y
Neo5X Neo10X Neo20X Neo40x	Objective	Set				Y	Y	Y
	High eyepoint BiWF10X,paired eyepiece		Y	Y		Y	Y
	High eyepoint WF10X eyepiece	Y			Y
FK3.3X	Photo eyepiece			Y			Y
	Stage plate	Y	Y	Y	Y	Y	Y
	Stage clips	Y	Y	Y	Y	Y	Y
	Eyepiece caps		Y	Y		Y	Y
32.5C	Blue filter	Y	Y	Y	Y	Y	Y
	Vinyl dust cover	Y	Y	Y	Y	Y	Y

Measurements

Taken from Andrew Zonenberg's BHM unless otherwise stated.

Base plate

Attaches to microscope frame with four M6x1.0 screws, 15 mm long, in a 2x2 hole pattern. Screw heads are 9.9 mm OD.

Base plate has 6.7mm clearance holes, scope body is tapped.

BHM hole pattern

Approx 135 mm front-to-back from center of microscope frame to sample.

References

• Olympus Series BH System Microscope [BH microscope]: [1]
• Olympus metallurgical microscopes instruction manual, models BHMJ & BHMJ-N [instruction BHMJ/-N]: [2]